; docformat = 'rst' ; ; NAME: ; cgCmdWindow ; ; PURPOSE: ; Creates a "command" window for IDL traditional commands (Plot, Contour, ; Surface, etc. or for Coyote Graphics routines, cgPlot, cgContour, cgSurf, etc.). ; In addition, the window contents can be saved as PostScript files or as raster image ; files. If ImageMagick is installed on your machine, the raster image files can be ; created in very high quality from PostScript files. This program can be used in ; place of a normal draw widget or as a stand-alone program. ; ;******************************************************************************************; ; ; ; Copyright (c) 2011, by Fanning Software Consulting, Inc. All rights reserved. ; ; ; ; Redistribution and use in source and binary forms, with or without ; ; modification, are permitted provided that the following conditions are met: ; ; ; ; * Redistributions of source code must retain the above copyright ; ; notice, this list of conditions and the following disclaimer. ; ; * Redistributions in binary form must reproduce the above copyright ; ; notice, this list of conditions and the following disclaimer in the ; ; documentation and/or other materials provided with the distribution. ; ; * Neither the name of Fanning Software Consulting, Inc. nor the names of its ; ; contributors may be used to endorse or promote products derived from this ; ; software without specific prior written permission. ; ; ; ; THIS SOFTWARE IS PROVIDED BY FANNING SOFTWARE CONSULTING, INC. ''AS IS'' AND ANY ; ; EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES ; ; OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT ; ; SHALL FANNING SOFTWARE CONSULTING, INC. BE LIABLE FOR ANY DIRECT, INDIRECT, ; ; INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED ; ; TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; ; ; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ; ; ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ; ; (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS ; ; SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. ; ;******************************************************************************************; ;+ ; Creates a "command" window for IDL traditional commands (Plot, Contour, ; Surface, etc. or for Coyote Graphics routines, cgPlot, cgContour, cgSurf, etc.). ; In addition, the window contents can be saved as PostScript files or as raster image ; files. If ImageMagick is installed on your machine, the raster image files can be ; created in very high quality from PostScript files. This program can be used in ; place of a normal draw widget or as a stand-alone program. ; ; The program is designed to work with any IDL traditional graphics routine ; that is a procedure and includes no more than four positional parameters. ; Any number of keywords can be used to specify properties of the graphical ; output. Any number of graphics commands can be "added" the the window. ; Simply use the AddCommand method to add commands. ; ; If your program does not load its own color tables, the color tables in ; effect when this program is initiated are used to display the graphics ; commands. ; ; To create PostScript output from within the program, your graphics program ; has to be written in such a way that it can work properly in the PostScript ; device. This means there are no Window commands, WSet commands, and the like ; that are not allowed in the PostScript device. Such commands are allowed in ; programs, of course, if they are "protected". Usually such protection looks ; like this:: ; ; IF (!D.Flags AND 256) NE 0 THEN Window, ... ; ; The Coyote Graphics program `cgDisplay` is a good program for opening graphics ; "windows", because such PostScript protection is built into the program. In a PostScript ; device, cgDisplay produces a "window" with the same aspect ratio as the current ; display graphics window, which is an aid in producing PostScript output that ; looks like the same output in the display window. ; ; Much better looking raster files can be created from the graphics window contents, ; if the raster files are created by converting PostScript files to the raster ; file. If the ImageMagick "convert" command can be found on your machine, you ; will have the option to create raster files using this method. I *highly* ; recommend doing so, as fonts and other plot annotation will be of much higher ; quality using this method. ; ; This program has been designed to work with other Coyote Graphics routines: `cgPlot`, ; `cgContour`, `cgSurf`, and so on, although I expect it to work with any IDL ; traditional graphics routine, if the routine is well written. ; ; :Categories: ; Graphics ; ; :Author: ; FANNING SOFTWARE CONSULTING:: ; David W. Fanning ; 1645 Sheely Drive ; Fort Collins, CO 80526 USA ; Phone: 970-221-0438 ; E-mail: david@idlcoyote.com ; Coyote's Guide to IDL Programming: http://www.idlcoyote.com ; ; :Copyright: ; Copyright (c) 2011, Fanning Software Consulting, Inc. ; ; :History: ; Change History:: ; Separated from old cgWindow program 22 Jan 2012, by David W. Fanning. ; Fixed a typo in PackageCommand method that prevented extra keywords from ; being collectd. 26 Jan 2012. DWF. ; Fixed a problem with MULTI keyword. 31 Jan 2012. DWF. ; Added a COPY method. 7 Feb 2012. DWF. ; Fixed a problem with input filenames in the AutoRasterFile method. 22 Feb 2012. DWF. ; Modified Draw_Widget creation routine to account for events that were added in ; different versions of IDL. 23 Feb 2012. DWF. ; Added ability to use IM_WIDTH keyword to set the width of raster file output ; created with ImageMagick. 3 April 2012. DWF. ; Forgot to specify the GROUP_LEADER when calling cgPS_Open. Caused cgPS_Config to ; run though its block when cgWindow was called from a blocking widget program. ; 5 June 2012. DWF. ; Added the ability to save the file name and directory of the last output file, so ; that subsequent file saves can use that last name and directory as a starting ; default filename. 11 July 2012. DWF. ; In decompling cgWindow from cgCmdWindow, I accidentally named the WASPECT keyword ASPECT. Restored ; original name in this version. 13 July 2012. DWF. ; I added a new method, ReplaceEscapeSequences, that can evaluate escape sequences in ; string parameters and keywords to call the appropriate cgSymbol value at run-time. ; This eliminates the need for alternate keywords. 27 July 2012. DWF. ; Added WDestroyObjects keyword to destroy objects parameters, if needed. 11 November 2012. DWF. ; Not adding IM_WIDTH parameter from cgWindow_GetDefs. 19 November 2012. DWF. ; Modified ReplaceEscapeSequence method to use cgCheckForSymbols. 24 November 2012. DWF. ; Modified to allow keywords to turn off messages from cgPS_Open and cgPS_Close with keywords. 27 November 2012. DWF. ; The output filename was not specified correctly when making PDF file automatically. Fixed. 2 Dec 2012. DWF. ; Renamed the MULTI keyword to WMULTI, as it was suppose to be. 11 Feb 2013. DWF. ; Misspelled keyword in PackageCommand method. 21 February 2013. DWF. ; Modified GUI so there is only one Raster Image File choice, depending on if ImageMagick is ; installed. 21 May 2013. DWF. ;- ;+ ; This method initializes the object that is at the heart of the Coyote Graphics system. ; It allows you to both configure the draw widget for events and to load a command into ; the command window. ; ; :Params: ; parent: in, optional ; The parent base widget for this draw widget object. If not defined, ; the program will create its own top-level base widget. ; ; :Keywords: ; altps_Keywords: in, optional, type=string ; A structure containing alternative keyword names (as tags) and values for ; those keywords to be used when the current device is the PostScript device. ; See http://www.idlcoyote.com/cg_tips/kwexpressions.php and the examples ; below for details on how to use this keyword. ; altps_Params: in, optional, type=IntArr(3) ; A structure containing alternative parameter values to be used when ; the current device is the PostScript device. Structure names are restricted ; to the names "P1", "P2", "P3" and "P4"to correspond to the equivalent positional ; parameter. See http://www.idlcoyote.com/cg_tips/kwexpressions.php and the ; examples below for details on how to use this keyword. ; background: in, optional, type=varies, default=!P.Background ; The background color of the window. Specifying a background color ; automatically sets the WErase keyword. ; button_events: in, optional, type=boolean ; Set this keyword to turn button events on for the draw widget. ; command: in, required, type=string ; The graphics procedure command to be executed. This parameter ; must be a string and the the command must be a procedure. Examples ; are 'Surface', 'Contour', 'Plot', 'cgPlot', cgContour, etc. ; cmddelay: in, optional, type=float ; If this keyword is set to a value other than zero, there will be a ; delay of this many seconds between command execution. This will permit ; "movies" of command sequences to be displayed. ; drop_events: in, optional, type=boolean ; Set this keyword to turn drop events on for the draw widget. ; eraseit: in, optional, type=boolean, default=0 ; Set this keyword to cause the window to be erased before graphics commands ; are drawn. This may need to be set, for example, to display images. ; event_handler: in, optional, type=string ; The name of an event handler procedure to accept events from ; the draw widget. Write the event handler procedure with two ; positional parameters. The first will be the event structure ; returned from the draw widget. The second will be the cgCmdWindow ; object reference (i.e., self) to allow you to manipulate the ; command window. ; group_leader: in, optional ; The identifier of a widget to serve as a group leader for this program. ; If the group leader is destroyed, this program is also destroyed. Used ; when calling this program from another widget program. ; keyboard_events: in, optional, type=boolean ; Set this keyword to turn keyboard events on for the draw widget. ; method: in, optional, type=boolean, default=0 ; Set this keyword if the command is an object method call rather than a ; procedure call. If this keyword is set, the first positional parameter, p1, ; must be present and must be a valid object reference. ; motion_events: in, optional, type=boolean ; Set this keyword to turn motion events on for the draw widget. ; oxmargin: in, optional, type=float ; A two-element array indicating the left and right X outside margins for the ; graphical display. Used only when doing multiple plots with `WMulti`. ; oymargin: in, optional, type=float ; A two-element array indicating the bottom and top Y outside margins for the ; graphical display. Used only when doing multiple plots with `WMulti`. ; p1: in, optional, type=any ; The first positional parameter appropriate for the graphics command. ; p2: in, optional, type=any ; The second positional parameter appropriate for the graphics command. ; p3: in, optional, type=any ; The third positional parameter appropriate for the graphics command. ; p4: in, optional, type=any ; The fourth positional parameter appropriate for the graphics command. ; replacecmd: in, optional, type=boolean, default=0 ; Set this keyword to replace a graphics command from an cgWindow. ; If CmdIndex is undefined, *all* commands in the window are replaced. Use ; WinID to identify the cgWindow you are interested in. If WinID is ; undefined, the last cgWindow created is used for the replacement. ; storage: in, optional, type=any ; Any user-defined IDL variable will be stored in the object storage location. ; Defined here for convenience. Same as `Storage` keyword for the SetProperty method. ; tracking_events: in, optional, type=boolean ; Set this keyword to turn tracking events on for the draw widget. ; waspect: in, optional, type=float, default=normal ; Set this keyword to the aspect ratio you would like the window to have. ; The aspect ratio is calculated as (ysize/xsize). Must be a float value. ; If this keyword is set, the window will maintain this aspect ratio, ; even when it is resized. ; wdestroyobjects: in, optional, type=boolean, default=0 ; If this keyword is set, and any of the input parameters p1-p4 is an object, ; the object parameter will be destroyed when the window is destroyed. ; wheel_events: in, optional, type=boolean ; Set this keyword to turn wheel events on for the draw widget. ; wmulti: in, optional, type=intarr(5) ; Set this keyword in exactly the same way you would set the !P.Multi keyword. ; It will allow you to display multi-plots in the cgWindow graphics window. ; wtitle: in, optional, type=string, default='Resizeable Graphics Window' ; The title of the graphics window if the program creates its own top-level ; base widget. A window index number is appended to the title so multiple cgWindow ; programs can be selected. Also used to register the widget program and as the ; title of the object when it is stored. ; wxpos: in, optional, type=integer, default=5 ; The x offset in device coordinates of the window from the upper-left corner of ; the display, if the program creates its own top-level base. Otherwise, this keyword ; is ignored. ; wypos: in, optional, type=integer, default=5 ; The y offset in device coordinates of the window from the upper-left corner of ; the display, if the program creates its own top-level base. Otherwise, this keyword ; is ignored. ; wxsize: in, optional, type=integer, default=640 ; The x size in device coordinates of the graphics window. ; wysize: in, optional, type=integer, default=512 ; The y size in device coordinates of the the graphics window. ; _extra: in, optional ; The "extra" keywords for the command that is being added to the window. ;- FUNCTION cgCmdWindow::Init, parent, $ AltPS_Keywords=altps_Keywords, $ ; A structure of PostScript alternative keywords and values. AltPS_Params=altps_Params, $ ; A structure of PostScript alternative parameters and values. Background = background, $ ; The background color. Set to !P.Background by default. Button_Events=button_events, $ ; Set this keyword to allow button events in the draw widget. CmdDelay=cmdDelay, $ ; Set this keyword to a value to "wait" before executing the next command. Command=command, $ ; The graphics "command" to execute. Drop_Events=drop_events, $ ; Set this keyword to allow drop events in the draw widget. EraseIt = eraseit, $ ; Set this keyword to erase the display before executing the command. Event_Handler=event_handler, $ ; Set this keyword to the name of an event handler procedure to handle draw widget events. Group_Leader = group_leader, $ ; The group leader of the cgWindow program. Keyboard_Events=keyboard_events, $ ; Set this keyword to allow keyboard events in the draw widget. Method=method, $ ; If set, will use CALL_METHOD instead of CALL_PROCEDURE to execute command. Motion_Events=motion_events, $ ; Set this keyword to allow motion events in the draw widget. OXMargin = xomargin, $ ; Set the !X.OMargin. A two element array. OYMargin = yomargin, $ ; Set the !Y.OMargin. A two element array P1=p1, $ ; The first postitional parameter in a graphics command loaded for display. P2=p2, $ ; The sedond postitional parameter in a graphics command loaded for display. P3=p3, $ ; The third postitional parameter in a graphics command loaded for display. P4=p4, $ ; The fourth postitional parameter in a graphics command loaded for display. ReplaceCmd=replacecmd, $ ; Replace the current command and execute in the current window. Storage=storage, $ ; A storage pointer location. Used like a user value in a widget. Tracking_Events=tracking_events, $ ; Set this keyword to allow tracking events in the draw widget. WAspect = waspect, $ ; Set the window aspect ratio to this value. WDestroyObjects=wdestroyobjects, $ ; Set this keyword to destroy object parameters upon exit. Wheel_Events=wheel_events, $ ; Set this keyword to allow wheel events in the draw widget. WMulti = wmulti, $ ; Set this in the same way !P.Multi is used. WTitle = title, $ ; The window title. WXPos = xpos, $ ; The X offset of the window on the display. The window is centered if not set. WXSize = xsize, $ ; The X size of the cgWindow graphics window in pixels. By default: 400. WYPos = ypos, $ ; The Y offset of the window on the display. The window is centered if not set. WYSize = ysize, $ ; The Y size of the cgWindow graphics window in pixels. By default: 400. _Extra = extra ; Any extra keywords. Usually the "command" keywords. Compile_Opt idl2 Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN, 0 ENDIF ; Check keywords. method = Keyword_Set(method) ; Get the global defaults. cgWindow_GetDefs, $ AdjustSize = d_adjustsize, $ ; Adjust charsize to window size. Background = d_background, $ ; The background color. Delay = d_delay, $ ; The amount of delay between command execution. EraseIt = d_eraseit, $ ; Set this keyword to erase the display before executing the commands. Multi = d_multi, $ ; Set this in the same way !P.Multi is used. XOMargin = d_xomargin, $ ; Set the !X.OMargin. A two element array. YOMargin = d_yomargin, $ ; Set the !Y.OMargin. A two element array XSize = d_xsize, $ ; The X size of the cgWindow graphics window. YSize = d_ysize, $ ; The Y size of the cgWindow graphics window. Title = d_title, $ ; The window title. XPos = d_xpos, $ ; The X offset of the window on the display. YPos = d_ypos, $ ; The Y offset of the window on the display. Aspect = d_aspect, $ ; The aspect ratio of the window. Palette = d_palette, $ ; The color table palette to use for the window. ; PDF properties. PDF_Unix_Convert_Cmd = d_pdf_unix_convert_cmd, $ ; Command to convert PS to PDF. PDF_Path = d_pdf_path, $ ; The path to the Ghostscript conversion command. ; ImageMagick Properties. IM_Transparent = d_im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command. IM_Density = d_im_density, $ ; Sets the density parameter on ImageMagick convert command. IM_Raster = d_im_raster, $ ; Create raster files via ImageMagick. IM_Resize = d_im_resize, $ ; Sets the resize parameter on ImageMagick convert command. IM_Options = d_im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command. IM_Width = d_im_width, $ ; The width of the raster file output. ; PostScript properties. PS_Decomposed = d_ps_decomposed, $ ; Sets the PostScript color mode. PS_Delete = d_ps_delete, $ ; Delete PS file when making IM raster. PS_Metric = d_ps_metric, $ ; Select metric measurements in PostScript output. PS_Encapsulated = d_ps_encapsulated, $ ; Create Encapsulated PostScript output. PS_FONT = d_ps_font, $ ; Select the font for PostScript output. PS_CHARSIZE = d_ps_charsize, $ ; Select the character size for PostScript output. PS_QUIET = d_ps_quiet, $ ; Select the QUIET keyword for cgPS_Open. PS_SCALE_FACTOR = d_ps_scale_factor, $ ; Select the scale factor for PostScript output. PS_TT_FONT = d_ps_tt_font ; Select the true-type font to use for PostScript output. ; If method is set, the first positional parameter must be present, ; and it must be a valid object reference. IF method THEN BEGIN IF N_Elements(p1) EQ 0 THEN $ Message, 'The parameter P1 must be present to make a method call.' IF ~Obj_Valid(p1) THEN $ Message, 'The parameter P1 must be a valid object reference when making method calls.' ENDIF SetDefaultValue, waspect, d_aspect SetDefaultValue, xsize, d_xsize SetDefaultValue, ysize, d_ysize SetDefaultValue, xpos, d_xpos SetDefaultValue, ypos, d_ypos SetDefaultValue, button_events, 0, /Boolean SetDefaultValue, drop_events, 0, /Boolean SetDefaultValue, keyboard_events, 0, /Boolean SetDefaultValue, motion_events, 0, /Boolean SetDefaultValue, tracking_events, 0, /Boolean SetDefaultValue, wheel_events, 0, /Boolean IF N_Elements(storage) NE 0 THEN self.storage = Ptr_New(storage) IF N_Elements(background) EQ 0 THEN BEGIN background = d_background IF N_Elements(command) EQ 0 THEN eraseit = 1 IF (N_Elements(command) NE 0) && cgCoyoteGraphic(command) THEN eraseit = 1 ENDIF ELSE BEGIN eraseit = 1 ENDELSE IF N_Elements(eraseIt) EQ 0 THEN eraseIt = d_eraseit ELSE eraseIt = Keyword_Set(eraseIt) ; The commands will be placed in a linked list for execution. self.cmds = Obj_New('LinkedList') IF Obj_Valid(self.cmds) EQ 0 THEN Message, 'Failed to make the LinkedList for the commands.' ; Add a command, if you have one. Otherwise, just make the window. IF (N_Elements(command) NE 0) THEN BEGIN thisCommand = Obj_New('cgWindow_Command', COMMAND=command, $ P1=p1, P2=p2, P3=p3, P4=p4, KEYWORDS=extra, TYPE=method, $ ALTPS_KEYWORDS=altps_Keywords, ALTPS_PARAMS=altps_Params, $ DESTROYOBJECTS=Keyword_Set(wdestroyobjects)) IF Obj_Valid(thisCommand) THEN self.cmds -> Add, thisCommand ELSE Message, 'Failed to make command object.' ENDIF ; If there is a palette, use it. Otherwise, use the current color table vectors. IF Total(d_palette) NE 0 THEN BEGIN IF Size(d_palette, /N_DIMENSIONS) NE 2 THEN Message, 'Color palette is not a 3xN array.' dims = Size(d_palette, /DIMENSIONS) threeIndex = Where(dims EQ 3) IF ((threeIndex)[0] LT 0) THEN Message, 'Color palette is not a 3xN array.' IF threeIndex[0] EQ 0 THEN d_palette = Transpose(d_palette) self.r = Ptr_New(d_palette[*,0]) self.g = Ptr_New(d_palette[*,1]) self.b = Ptr_New(d_palette[*,2]) ENDIF ELSE BEGIN TVLCT, rr, gg, bb, /Get self.r = Ptr_New(rr) self.g = Ptr_New(gg) self.b = Ptr_New(bb) ENDELSE ; Create the widgets for the program. IF N_Elements(parent) NE 0 THEN BEGIN self.tlb = parent createParent = 0 ENDIF ELSE BEGIN self.tlb = Widget_Base(/TLB_SIZE_EVENTS, MBar=menuID, UNAME='TLB_RESIZE') createParent = 1 ENDELSE ; Create buttons if you created the parent widget. IF createParent THEN BEGIN fileID = Widget_Button(menuID, Value='File') saveID = Widget_Button(fileID, Value='Save Window As...', /MENU) button = Widget_Button(saveID, Value='PostScript File', UNAME='POSTSCRIPT') button = Widget_Button(saveID, Value='PDF File', UNAME='PDF') ; If you can find ImageMagick on this machine, you can convert to better ; looking raster files. IF cgHasImageMagick() EQ 1 THEN BEGIN imraster = Widget_Button(saveID, Value='Raster Image File', /MENU) button = Widget_Button(imraster, Value='BMP', UNAME='IMAGEMAGICK_BMP') button = Widget_Button(imraster, Value='GIF', UNAME='IMAGEMAGICK_GIF') button = Widget_Button(imraster, Value='JPEG', UNAME='IMAGEMAGICK_JPEG') button = Widget_Button(imraster, Value='PNG', UNAME='IMAGEMAGICK_PNG') button = Widget_Button(imraster, Value='TIFF', UNAME='IMAGEMAGICK_TIFF') ENDIF ELSE BEGIN raster = Widget_Button(saveID, Value='Raster Image File', /MENU) button = Widget_Button(raster, Value='BMP', UNAME='RASTER_BMP') button = Widget_Button(raster, Value='GIF', UNAME='RASTER_GIF') button = Widget_Button(raster, Value='JPEG', UNAME='RASTER_JPEG') button = Widget_Button(raster, Value='PNG', UNAME='RASTER_PNG') button = Widget_Button(raster, Value='TIFF', UNAME='RASTER_TIFF') ENDELSE button = Widget_Button(fileID, Value='Save Current Visualization', /Separator, UNAME='SAVECOMMANDS') button = Widget_Button(fileID, Value='Restore Visualization', UNAME='RESTORECOMMANDS') button = Widget_Button(fileID, Value='Quit', /Separator, UNAME='QUIT') ENDIF ; Check to see if you have to create a window with a particular aspect ratio. ; If so, your xsize and ysize values will need to be adjusted. IF waspect NE 0 THEN BEGIN IF waspect GE 1 THEN BEGIN xsize = Round(ysize / waspect) ENDIF ELSE BEGIN ysize = Round(xsize * waspect) ENDELSE ENDIF ; Create draw widget. UNIX versions of IDL have a bug in which creating ; a draw widget as the very first window in an IDL session causes both ; !P.Background and !P.Color to be set to white. I know, it's odd. But ; doing this little trick fixes the problem. tempBackground = !P.Background tempColor = !P.Color retain = (StrUpCase(!Version.OS_Family) EQ 'UNIX') ? 2 : 1 IF ~createParent THEN BEGIN notify_realize = 'cgCmdWindowDrawRealize' kill_notify = 'cgCmdWindowKillNotify' ENDIF self.drawID = Widget_Draw(self.tlb, XSIZE=xsize, YSize=ysize, RETAIN=retain, $ UVALUE=self, Notify_Realize=notify_realize, $ UNAME='DRAW_WIDGET', Kill_Notify=kill_notify, $ BUTTON_EVENTS=button_events, $ KEYBOARD_EVENTS=keyboard_events, $ MOTION_EVENTS=motion_events, $ TRACKING_EVENTS=tracking_events) release = Float(!Version.Release) IF (N_Elements(wheel_events) NE 0) && (release GE 6.2) THEN $ Widget_Control, self.drawID, DRAW_WHEEL_EVENTS=wheel_events IF (N_Elements(drop_events) NE 0) && (release GE 6.3) THEN $ Widget_Control, self.drawID, SET_DROP_EVENTS=drop_events !P.Background = Temporary(tempBackground) !P.Color = Temporary(tempColor) ; Do we need to center the widget? Only do this if you created the parent. IF (xpos EQ -1) && (ypos EQ -1) && createParent THEN BEGIN DefSysV, '!FSC_WINDOW_LIST', EXISTS=exists IF ~exists THEN BEGIN xpos = 5 ypos = 5 ENDIF ELSE BEGIN IF Obj_Valid(!FSC_WINDOW_LIST) THEN BEGIN count = !FSC_WINDOW_LIST -> Get_Count() xpos = 5 + (30*count) ypos = 5 + (25*count) ENDIF ELSE BEGIN xpos = 5 ypos = 5 ENDELSE ENDELSE cgCenterTLB, self.tlb, xpos, ypos, /NOCENTER, /DEVICE ENDIF ELSE BEGIN IF createParent THEN cgCenterTLB, self.tlb, xpos, ypos, /NOCENTER, /DEVICE ENDELSE ; Display the widget and get window index number. currentWindow = !D.Window IF createParent THEN BEGIN Widget_Control, self.tlb, /Realize Widget_Control, self.drawID, Get_Value=wid self.wid = wid WSet, wid IF N_Elements(title) EQ 0 THEN BEGIN title = d_title title = title + ' (' + StrTrim(wid,2) + ')' ENDIF Widget_Control, self.tlb, TLB_Set_Title=title ENDIF ELSE BEGIN IF N_Elements(title) EQ 0 THEN title = "cgCmdWindow" ENDELSE self.title = title ; Load object properties. self.background = Ptr_New(background) IF N_Elements(cmdDelay) NE 0 THEN self.delay = cmdDelay ELSE self.delay = d_delay self.eraseIt = eraseIt IF N_Elements(wmulti) NE 0 THEN BEGIN FOR j=0,N_Elements(wmulti)-1 DO self.pmulti[j] = wmulti[j] ENDIF ELSE self.pmulti = d_multi IF N_Elements(xomargin) NE 0 THEN self.xomargin = xomargin ELSE self.xomargin = d_xomargin IF N_Elements(yomargin) NE 0 THEN self.yomargin = yomargin ELSE self.yomargin = d_yomargin self.adjustsize = d_adjustsize self.createParent = createParent self.destroyObjects = Keyword_Set(wdestroyobjects) self.im_transparent = d_im_transparent self.im_density = d_im_density self.im_options = d_im_options self.im_raster = d_im_raster self.im_resize = d_im_resize self.im_width = d_im_width self.msysvar = Ptr_New(/Allocate_Heap) self.pdf_unix_convert_cmd = d_pdf_unix_convert_cmd self.pdf_path = d_pdf_path self.ps_decomposed = d_ps_decomposed self.ps_delete = d_ps_delete self.ps_encapsulated = d_ps_encapsulated self.ps_metric = d_ps_metric self.ps_charsize = d_ps_charsize self.ps_font = d_ps_font self.ps_quiet = d_ps_quiet self.ps_scale_factor = d_ps_scale_factor self.ps_tt_font = d_ps_tt_font self.waspect = waspect IF createParent THEN BEGIN ; Get it running. WIDGET_CONTROL, /MANAGED, self.tlb XManager, 'cgwindow', self.tlb, /No_Block, $ Event_Handler='cgCmdWindow_Dispatch_Events', $ Cleanup = 'cgCmdWindow_Cleanup', $ Group_Leader=group_leader ; Store the self object in UVALUE of TLB. This is so it can be cleaned up properly. Widget_Control, self.tlb, SET_UValue=self ; Store the object reference on the external linked list. self -> StoreObjectReference ; Execute the commands self -> ExecuteCommands ENDIF ; Restore the current graphics window, if you can. IF (currentWindow GE 0) && WindowAvailable(currentWindow) THEN BEGIN WSet, currentWindow ENDIF ELSE WSet, -1 RETURN, 1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This program is called when the draw widget is realized. The purpose is to find ; and set the window index number in the program, store the object reference on ; an external linked list so it can found again later, and to execute the loaded ; commands. ; ; :Params: ; drawID: in, required ; The widget identifier of the draw widget. ;- PRO cgCmdWindowDrawRealize, drawID Widget_Control, drawID, Get_UVALUE=theObject, Get_VALUE=wid theObject -> SetProperty, WID=wid ; Store the object reference on the external linked list. theObject -> StoreObjectReference ; Execute the commands theObject -> ExecuteCommands END ;+ ; This program is called when the draw widget is destroyed. The purpose ; is to clean up the object. ; ; :Params: ; drawID: in, required ; The widget identifier of the draw widget. ;- PRO cgCmdWindowKillNotify, drawID Widget_Control, drawID, GET_UVALUE=theObject Obj_Destroy, theObject END ; ; ;+ ; The cleanup method for the cgCmdWindow object. ;- PRO cgCmdWindow::Cleanup Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Free any pointers. Ptr_Free, self.background Ptr_Free, self.r Ptr_Free, self.g Ptr_Free, self.b Ptr_Free, self.msysvar Ptr_Free, self.storage ; Destroy the command objects. IF Obj_Valid(self.cmds) THEN BEGIN count = self.cmds -> Get_Count() FOR j=0,count-1 DO Obj_Destroy, self.cmds -> Get_Item(j, /DEREFERENCE) Obj_Destroy, self.cmds ENDIF ; You have to remove yourself from the list of valid cgWindows. theList = !FSC_WINDOW_LIST IF Obj_Valid(theList) THEN BEGIN structs = theList -> Get_Item(/ALL, /DEREFERENCE) index = Where(structs.windowObj[*] EQ self, count) IF count GT 0 THEN theList -> Delete, index[0] ENDIF ; If the list doesn't have any more cgWindows objects in it, ; delete the list so it doesn't waste memory. IF ((theList -> Get_Count()) EQ 0) THEN Obj_Destroy, theList ; If your widget ID is valid, destroy the widget program. IF self.createParent && Widget_Info(self.tlb, /VALID_ID) THEN Widget_Control, self.tlb, /Destroy END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This procedure builds a command structure and saves the structure ; to the main IDL level. Its purpose is to allow the user to work ; with restored commands independently of the window interface. ; ; :Params: ; structname: in, optional, type=string, default="cmd" ; The name of the command structure to be saved at the ; main IDL level. ; ; :Keywords: ; quiet: in, optional, type=boolean ; If set, the message indicated where the variable was saved ; and what its name is is not printed in the IDL command window. ;- PRO cgWindow_Command::CreateCommandStruct, structName, Quiet=quiet Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Struct variable name IF N_Elements(structName) EQ 0 THEN structName='cmd' cmdString = self.command cmdStruct = Create_Struct('Command', cmdString, 'nparams', self.nparams, 'type', self.type) CASE self.nparams OF 0: 1: cmdStruct = Create_Struct(cmdStruct, 'p1', *self.p1) 2: cmdStruct = Create_Struct(cmdStruct, 'p1', *self.p1, 'p2', *self.p2) 3: cmdStruct = Create_Struct(cmdStruct, 'p1', *self.p1, 'p2', *self.p2, 'p3', *self.p3) 4: cmdStruct = Create_Struct(cmdStruct, 'p1', *self.p1, 'p2', *self.p2, 'p3', *self.p3, 'p4', *self.p4) ENDCASE IF Ptr_Valid(self.keywords) THEN BEGIN cmdStruct = Create_Struct(cmdStruct, 'keywords', *self.keywords) ENDIF ; Copy the variable to the MAIN level (Scope_VarFetch(structName, /Enter, Level=1)) = Temporary(cmdStruct) IF NOT Keyword_Set(quiet) THEN $ PRINT, 'Created command struct variable ', structName, ' in IDL $MAIN level.' END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This procedure makes and returns a copy of a command object. ;- FUNCTION cgWindow_Command::Copy IF Ptr_Valid(self.keywords) THEN BEGIN CASE self.nparams OF 0: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, $ KEYWORDS=*self.keywords, TYPE=self.type, $ DESTROYOBECTS=self.destroyObjects) 1: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, $ KEYWORDS=*self.keywords, TYPE=self.type, $ DESTROYOBECTS=self.destroyObjects) 2: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, P2=*self.p2, $ KEYWORDS=*self.keywords, TYPE=self.type, $ DESTROYOBECTS=self.destroyObjects) 3: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, P2=*self.p2, $ P3=*self.p3, KEYWORDS=*self.keywords, TYPE=self.type, $ DESTROYOBECTS=self.destroyObjects) 4: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, P2=*self.p2, $ P3=*self.p3, P4=*self.p4, KEYWORDS=*self.keywords, TYPE=self.type, $ DESTROYOBECTS=self.destroyObjects) ENDCASE ENDIF ELSE BEGIN CASE self.nparams OF 0: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, $ TYPE=self.type, DESTROYOBECTS=self.destroyObjects) 1: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, $ TYPE=self.type, DESTROYOBECTS=self.destroyObjects) 2: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, P2=*self.p2, $ TYPE=self.type, DESTROYOBECTS=self.destroyObjects) 3: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, p2=*self.p2, P3=*self.p3, $ TYPE=self.type, DESTROYOBECTS=self.destroyObjects) 4: copyObj = Obj_New('cgWindow_Command', COMMAND=self.command, P1=*self.p1, p2=*self.p2, P3=*self.p3, P4=*self.p4, $ TYPE=self.type, DESTROYOBECTS=self.destroyObjects) ENDCASE ENDELSE RETURN, copyObj END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This procedure returns the keyword in a command object, if there ; are any keywords. ; ; :Keywords: ; has_keywords: out, optional, type=boolean ; If set to 1, the function returned keywords. If set to 0, ; there were no keywords in the command to return. ;- FUNCTION cgWindow_Command::Get_Keywords, HAS_KEYWORDS=has_keywords IF Ptr_Valid(self.keywords) THEN BEGIN has_keywords = 1 RETURN, *self.keywords ENDIF ELSE BEGIN has_keywords = 0 RETURN, Ptr_New() ENDELSE END ;---------------------------------------------------------------------------------------------------------------- PRO cgWindow_Command::Draw, SUCCESS=success, KEYWORDS=keywords Compile_Opt idl2 ; Can't really catch CALL_PROCEDURE errors, so I'm not sure what this is doing here. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() success = 0 RETURN ENDIF ; It seems it is not possible to catch errors generated by CALL_PROCEDURE, ; so I have to fake it out. I reset the !ERROR_STATE structure at the beginning ; and assume failure. After I get through the code, I check to see if the ; !ERROR_STATE.MSG field is still a null string. If it is, I assume we successfully ; executed the command and change the success flag. success = 0 Message, /RESET ; Do we have alternative keywords? IF Ptr_Valid(self.altps_Keywords) THEN BEGIN keywords = self -> EvaluateKeywords(*self.keywords, SUCCESS=success) IF success EQ 0 THEN Ptr_Free, self.keywords ENDIF ELSE BEGIN IF Ptr_Valid(self.keywords) THEN BEGIN keywords = *self.keywords keywords = self -> ReplaceEscapeSequences(keywords) ENDIF ENDELSE ; Do we have alternative parameters? IF Ptr_Valid(self.altps_params) THEN BEGIN altTags = Tag_Names(*self.altps_params) IF (Where(altTags EQ 'P1') NE -1) THEN BEGIN IF (!D.Name EQ 'PS') $ THEN p1 = (*self.altps_params).p1 $ ELSE IF Ptr_Valid(self.p1) THEN p1 = *self.p1 ENDIF ELSE IF Ptr_Valid(self.p1) THEN p1 = *self.p1 IF (Where(altTags EQ 'P2') NE -1) THEN BEGIN IF (!D.Name EQ 'PS') $ THEN p2 = (*self.altps_params).p2 $ ELSE IF Ptr_Valid(self.p2) THEN p2 = *self.p2 ENDIF ELSE IF Ptr_Valid(self.p2) THEN p2 = *self.p2 IF (Where(altTags EQ 'P3') NE -1) THEN BEGIN IF (!D.Name EQ 'PS') $ THEN p3 = (*self.altps_params).p3 $ ELSE IF Ptr_Valid(self.p3) THEN p3 = *self.p3 ENDIF ELSE IF Ptr_Valid(self.p3) THEN p3 = *self.p3 IF (Where(altTags EQ 'P4') NE -1) THEN BEGIN IF (!D.Name EQ 'PS') $ THEN p4 = (*self.altps_params).p4 $ ELSE IF Ptr_Valid(self.p4) THEN p4 = *self.p4 ENDIF ELSE IF Ptr_Valid(self.p4) THEN p4 = *self.p4 ENDIF ELSE BEGIN IF Ptr_Valid(self.p1) THEN p1 = *self.p1 IF Ptr_Valid(self.p2) THEN p2 = *self.p2 IF Ptr_Valid(self.p3) THEN p3 = *self.p3 IF Ptr_Valid(self.p4) THEN p4 = *self.p4 ENDELSE ; Remove escape sequences, if you need to. IF Size(p1, /TNAME) EQ 'STRING' THEN p1 = self -> ReplaceEscapeSequences(p1) IF Size(p2, /TNAME) EQ 'STRING' THEN p2 = self -> ReplaceEscapeSequences(p2) IF Size(p3, /TNAME) EQ 'STRING' THEN p3 = self -> ReplaceEscapeSequences(p3) IF Size(p4, /TNAME) EQ 'STRING' THEN p4 = self -> ReplaceEscapeSequences(p4) ; What kind of command is this? CASE self.type OF ; Command calls a procedure. 0: BEGIN IF Ptr_Valid(self.keywords) THEN BEGIN CASE self.nparams OF 0: Call_Procedure, self.command, _Extra=keywords 1: Call_Procedure, self.command, p1, _Extra=keywords 2: Call_Procedure, self.command, p1, p2, _Extra=keywords 3: Call_Procedure, self.command, p1, p2, p3, _Extra=keywords 4: Call_Procedure, self.command, p1, p2, p3, p4, _Extra=keywords ENDCASE ENDIF ELSE BEGIN CASE self.nparams OF 0: Call_Procedure, self.command 1: Call_Procedure, self.command, p1 2: Call_Procedure, self.command, p1, p2 3: Call_Procedure, self.command, p1, p2, p3 4: Call_Procedure, self.command, p1, p2, p3, p4 ENDCASE ENDELSE END ; Command calls a method. 1: BEGIN IF Ptr_Valid(self.keywords) THEN BEGIN CASE self.nparams OF 0: Message, 'Call_Method requires at least one positional parameter.' 1: Call_Method, self.command, p1, _Extra=keywords 2: Call_Method, self.command, p1, p2, _Extra=keywords 3: Call_Method, self.command, p1, p2, p3, _Extra=keywords 4: Call_Method, self.command, p1, p2, p3, p4, _Extra=keywords ENDCASE ENDIF ELSE BEGIN CASE self.nparams OF 0: Message, 'Call_Method requires at least one positional parameter.' 1: Call_Method, self.command, p1 2: Call_Method, self.command, p1, p2 3: Call_Method, self.command, p1, p2, p3 4: Call_Method, self.command, p1, p2, p3, p4 ENDCASE ENDELSE END ENDCASE ; If nothing has been put into the message field, we much have executed the command ; successfully. IF !Error_State.MSG EQ "" THEN success = 1 ; For some reason, CALL_PROCEDURE does not flush the graphics buffer on UNIX machines. ; We have to do it ourself to get the program to resize correctly on UNIX machines. EMPTY END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method replaces stored keyword values with alternative keyword values, if they ; are available. The return variable is a list of the keywords with the ; alternative values substituted for the stored values. ; ; :Params: ; keywords: in, required, type=structure ; The list of input keywords. ; ; :Keywords: ; success: out, optional, type=boolean ; If the command executed successfully, return a 1. Otherwise ; return a 0. ;- FUNCTION cgWindow_Command::EvaluateKeywords, keywords, SUCCESS=success ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL success = 0 void = cgErrorMsg() IF N_Elements(keywords) NE 0 THEN RETURN, keywords ELSE RETURN, 0 ENDIF Compile_Opt idl2 ; Assume success. success = 1 ; Need to have keywords. IF N_Elements(keywords) EQ 0 THEN $ Message, 'A keyword structure must be passed to the method.' ; Get the keyword names. tags = Tag_Names(keywords) ; Find the keywords to be evaluated in this keyword structure. evalTags = Tag_Names(*self.altps_keywords) theseTags = Ptr_New(/Allocate_Heap) FOR j=0,N_Elements(evalTags)-1 DO BEGIN index = Where(tags EQ evalTags[j], count) IF (count EQ 1) THEN BEGIN IF N_Elements(*theseTags) NE 0 THEN *theseTags = [*theseTags, index] ELSE *theseTags = [index] ENDIF ELSE IF count GT 1 THEN Message, 'Ambiguous keywords to evaluate.' ENDFOR ; Evaluate the keywords and, if necessary, replace the keyword value ; with the evaluated value. The evaluated keyword value must initially be a ; STRING that can be evaluated with the EXECUTE command. FOR j=0,N_Elements(tags)-1 DO BEGIN index = Where(*theseTags EQ j, count) IF count EQ 0 THEN BEGIN IF N_Elements(mkeys) EQ 0 THEN BEGIN mkeys = Create_Struct(tags[j], keywords.(j)) ENDIF ELSE BEGIN mkeys = Create_Struct(mkeys, tags[j], keywords.(j)) ENDELSE ENDIF ELSE BEGIN ; If this is PostScript, use the alternative keyword value. tagValue = (!D.Name EQ 'PS') ? (*self.altps_keywords).(index) : keywords.(j) IF N_Elements(mkeys) EQ 0 THEN BEGIN mkeys = Create_Struct(tags[j], tagValue) ENDIF ELSE BEGIN mkeys = Create_Struct(mkeys, tags[j], tagValue) ENDELSE ENDELSE ENDFOR ; Evaluate string keywords for escape sequences (e.g, $\mu$). ;mkeys = cgWindow_Command -> ReplaceEscapeSequences(mkeys) Ptr_Free, theseTags RETURN, mkeys END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method lists the current command by printing a representation ; of the command in the command log window. ; ; :Params: ; prefix: in, optional, type=string ; A prefix for the printed command (e.g., an index number, etc.). ; ;- PRO cgWindow_Command::List, prefix Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF cmdString = self.command CASE self.nparams OF 0: 1: cmdString = cmdString + ', p1' 2: cmdString = cmdString + ', p1, p2' 3: cmdString = cmdString + ', p1, p2, p3' 4: cmdString = cmdString + ', p1, p2, p3, p4' ENDCASE IF Ptr_Valid(self.keywords) THEN BEGIN tags = Tag_Names(*self.keywords) FOR j=0,N_Elements(tags)-1 DO BEGIN cmdString = cmdString + ', ' + tags[j] + '=value' ENDFOR ENDIF IF N_Elements(prefix) NE 0 THEN prefix = ' ' + prefix + ' ' ELSE prefix = ' ' Print, prefix + cmdString END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method searches for escape sequences in text keywords and replaces ; them if necessary with the particular token from cgSymbol. To create an ; micrometer symbol, for example, you might specify an XTITLE keyword like ; this: XTITLE='Length ($\mu$M)'. The symbol name should be proceeded by ; a "$\" and ended with a "$". ; ; :Params: ; aString: in, required ; Either a scalar or array of strings, or a structure of keyword parameters. ; If a structure, then the ReplaceEscapeSequences method is called recursively. ;- FUNCTION cgWindow_Command::ReplaceEscapeSequences, aString Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() IF N_Elements(aString) EQ 0 THEN RETURN, "" ELSE RETURN, aString ENDIF ; Must have a parameter. IF N_Elements(aString) EQ 0 THEN Message, 'Must pass a string or structure of keywords.' ; What kind of thing is the parameter? type = Size(aString, /TNAME) ; If this is a structure of keyword parameters, sort though and call all string ; parameters recursively. IF type EQ "STRUCT" THEN BEGIN tags = Tag_Names(aString) FOR j=0,N_Elements(tags)-1 DO BEGIN type = Size(aString.(j), /TNAME) IF (type EQ 'STRING') || (type EQ 'STRUCT') || (type EQ 'POINTER') THEN BEGIN aString.(j) = self -> ReplaceEscapeSequences(aString.(j)) ENDIF ENDFOR RETURN, aString ENDIF ; Is this a pointer type? IF type EQ 'POINTER' THEN BEGIN IF Size(*aString, /TNAME) EQ 'STRING' THEN *aString = self -> ReplaceEscapeSequences(*aString) ENDIF ; If this is a string, then do your thing. IF type EQ 'STRING' THEN BEGIN FOR j=0,N_Elements(aString)-1 DO BEGIN thisString = aString[j] thisString = cgCheckForSymbols(thisString) aString[j] = thisString ENDFOR RETURN, aString ENDIF END ;---------------------------------------------------------------------------------------------------------------- ;+ ; The clean-up routine for the command object. ;- PRO cgWindow_Command::Cleanup ; Need to destroy parameter objects? IF self.destroyobjects THEN BEGIN IF Ptr_Valid(self.p1) && Obj_Valid(*self.p1) THEN Obj_Destroy, *self.p1 IF Ptr_Valid(self.p2) && Obj_Valid(*self.p2) THEN Obj_Destroy, *self.p2 IF Ptr_Valid(self.p3) && Obj_Valid(*self.p3) THEN Obj_Destroy, *self.p3 IF Ptr_Valid(self.p4) && Obj_Valid(*self.p4) THEN Obj_Destroy, *self.p4 ENDIF Ptr_Free, self.p1 Ptr_Free, self.p2 Ptr_Free, self.p3 Ptr_Free, self.p4 Ptr_Free, self.keywords Ptr_Free, self.altps_keywords Ptr_Free, self.altps_params END ;---------------------------------------------------------------------------------------------------------------- ;+ ; The initialization routine for the command object. ; ; :Keywords: ; altps_keywords: in, optional, type=structure ; A structure of alternative keyword names and values to be used ; when the PostScript device is the current graphics device. ; altps_params: in, optional, type=structure ; A structure of alternative parameters and values to be used ; when the PostScript device is the current graphics device. ; command: in, required, type=string ; The command that is being stored in the command object. ; destroyobjects: in, optional, type=boolean, default=0 ; If this keyword is set, and any of the input parameters p1-p4 is an object, ; the object parameter will be destroyed when the window is destroyed. ; keywords: in, optional, type=structure ; A structure containing keyword:value pairs to be executed ; with the command. ; P1: in, optional, type=varies ; The first positional parameter of the command being stored ; in the structure. ; P2: in, optional, type=varies ; The second positional parameter of the command being stored ; in the structure. ; P3: in, optional, type=varies ; The third positional parameter of the command being stored ; in the structure. ; P4: in, optional, type=varies ; The fourth positional parameter of the command being stored ; in the structure. ; type: in, optional, type=integer, default=0 ; The type of command. 0 indicates a procedure. 1 indicates an object method. ;- FUNCTION cgWindow_Command::INIT, $ ALTPS_KEYWORDS=altps_keywords, $ ALTPS_PARAMS=altps_params, $ COMMAND=command, $ DESTROYOBJECTS=destroyObjects, $ KEYWORDS=keywords, $ P1=p1, P2=p2, P3=p3, P4=p4, $ TYPE=type Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN, 0 ENDIF self.command = command IF N_Elements(p1) NE 0 THEN self.p1 = Ptr_New(p1) IF N_Elements(p2) NE 0 THEN self.p2 = Ptr_New(p2) IF N_Elements(p3) NE 0 THEN self.p3 = Ptr_New(p3) IF N_Elements(p4) NE 0 THEN self.p4 = Ptr_New(p4) IF N_Elements(keywords) NE 0 THEN self.keywords = Ptr_New(keywords) IF N_Elements(altps_keywords) NE 0 THEN self.altps_keywords = Ptr_New(altps_keywords) IF N_Elements(altps_params) NE 0 THEN self.altps_params = Ptr_New(altps_params) self.destroyobjects = Keyword_Set(destroyObjects) self.type = Keyword_Set(type) self.nparams = (N_Elements(p1) NE 0) + (N_Elements(p2) NE 0) + (N_Elements(p3) NE 0) + (N_Elements(p4) NE 0) RETURN, 1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; The structure definition module for structure that is stored ; on the window manager list. ;- PRO cgWindow_ID__Define struct = { cgWINDOW_ID, $ tlb: 0L, $ wid: 0L, $ title: "", $ windowObj: Obj_New() $ } END ;---------------------------------------------------------------------------------------------------------------- ;+ ; The clean-up method for the cgCmdWindow object. ;- PRO cgCmdWindow_Cleanup, tlb Widget_Control, tlb, Get_UValue=self IF Obj_Valid(self) THEN Obj_Destroy, self END ;---------------------------------------------------------------------------------------------------------------- ;+ ; The class definition module for the cgWindow_Command object. ;- PRO cgWindow_Command__Define ; The definition of the command object. class = { cgWindow_Command, $ command: "", $ ; The command to execute. p1: Ptr_New(), $ ; The first parameter. p2: Ptr_New(), $ ; The second parameter. p3: Ptr_New(), $ ; The third parameter. p4: Ptr_New(), $ ; The fourth parameter. nparams: 0, $ ; The number of parameters. keywords: Ptr_New(), $ ; The command keywords. destroyobjects: 0B, $ ; A flag to destroy parameter objects upon exit. altps_keywords: Ptr_New(), $ ; Structure of keywords to evaluate at run-time. altps_params: Ptr_New(), $ ; Structure of parameters to evaluate at run-time. type: 0 $ ; =0 call_procedure =1 call_method } END ;---------------------------------------------------------------------------------------------------------------- ;+ ; Adds a command object of class cgWINDOW_COMMAND to the command list ; maintained by the window. ; ; :Params: ; command: in, required, type=object ; A command object of class cgWINDOW_COMMAND. ; ; :Keywords: ; index: in, optional, type=integer ; The index number of where the command should be added in the command list. ; The command is added to the end of the command list by default. ;- PRO cgCmdWindow::AddCommand, command, INDEX=index Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; If the command is a valid object, add it to the command list. IF Obj_Valid(command) THEN self.cmds -> Add, command, index, /Before END ;---------------------------------------------------------------------------------------------------------------- ;+ ; Provides a programmatic way to create a PostScript file from the window. ; Call by setting the CREATE_PS keyword with cgControl. ; ; :Params: ; filename: in, required, type=string ; The name of the PostScript file to generate. ;- PRO cgCmdWindow::AutoPostScriptFile, filename Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() ; Close the PostScript file. cgPS_Close, /NoFix ; Set the window index number back. IF N_Elements(currentWindow) NE 0 THEN BEGIN IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 ENDIF RETURN ENDIF ; Make this window the current graphics windows. currentWindow = !D.Window WSet, self.wid IF N_Elements(filename) EQ 0 THEN filename='cgwindow.ps' ; Allow the user to configure the PostScript file. cgPS_Open, GUI=0, $ FILENAME=filename, $ DECOMPOSED=self.ps_decomposed, $ EUROPEAN=self.ps_metric, $ ENCAPSULATED=self.ps_encapsulated, $ GROUP_LEADER=self.tlb, $ SCALE_FACTOR=self.ps_scale_factor, $ CHARSIZE=self.ps_charsize, $ FONT=self.ps_font, $ QUIET=self.ps_quiet, $ TT_FONT=self.ps_tt_font ; Execute the graphics commands. self -> ExecuteCommands ; Clean up. cgPS_Close, NOMESSAGE=self.ps_quiet ; Set the window index number back. IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; Provides a programmatic way to create a raster file from the window. ; Call by setting the create_png, etc. keyword with cgControl. ; ; :Params: ; filetype: in, required, type=string ; The type of raster file (e.g., PNG, JPEG, etc.). ; filename: in, required, type=string ; The name of the output file. ;- PRO cgCmdWindow::AutoRasterFile, filetype, filename Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() ; Close the PostScript file. cgPS_Close, /NoFix ; Set the window index number back. IF N_Elements(currentWindow) NE 0 THEN BEGIN IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 ENDIF RETURN ENDIF ; Make this window the current graphics windows. currentWindow = !D.Window WSet, self.wid IF N_Elements(filetype) EQ 0 then filetype = 'PNG' IF N_Elements(filename) EQ 0 THEN filename = 'cgwindow.' + StrLowCase(filetype) IF StrUpCase(filetype) EQ 'PDF' THEN rastertype = -1 ELSE rastertype = self.im_raster ; Strip the extension off the filename. outname = cgRootName(filename, DIRECTORY=dirName) ; Put it back together without an extension. outputFilename = Filepath(ROOT_DIR=dirName, outname) ; What kind of raster file. CASE rasterType OF ; PDF File. -1: BEGIN thisname = outputFilename + '.ps' outname = outputFilename + '.pdf' cgPS_Open, $ DECOMPOSED=self.ps_decomposed, $ FILENAME=thisname, $ GROUP_LEADER=self.tlb, $ METRIC=self.ps_metric, $ KEYWORDS=keywords, $ ; Returned cgPS_Config keywords. SCALE_FACTOR=self.ps_scale_factor, $ CHARSIZE=self.ps_charsize, $ FONT=self.ps_font, $ QUIET=1, $ TT_FONT=self.ps_tt_font ; Draw the graphics. self -> ExecuteCommands ; Close the file and make a PDF file. cgPS_Close cgPS2PDF, thisname, outname, DELETE_PS=self.ps_delete, /SILENT, SUCCESS=success, $ UNIX_CONVERT_CMD=self.pdf_unix_convert_cmd, GS_PATH=self.pdf_path IF ~success THEN BEGIN Message, 'Unable to create PDF file. See cgPS2PDF documentation.' ENDIF ELSE BEGIN IF ~self.ps_quiet THEN Print, 'PDF output will be created here: ' + outname ENDELSE END ; Normal raster. 0: BEGIN void = cgSnapshot(TYPE=fileType, FILENAME=outputFilename, /NODIALOG) Print, 'Output file is located here: ' + outputFilename END ; Raster via ImageMagick. 1: BEGIN ; Create a PostScript file first. thisname = outputFilename + '.ps' cgPS_Open, $ DECOMPOSED=self.ps_decomposed, $ FILENAME=thisname, $ GROUP_LEADER=self.tlb, $ METRIC=self.ps_metric, $ KEYWORDS=keywords, $ ; Returned cgPS_Config keywords. SCALE_FACTOR=self.ps_scale_factor, $ CHARSIZE=self.ps_charsize, $ FONT=self.ps_font, $ QUIET=1, $ TT_FONT=self.ps_tt_font ; Cannot successfully convert encapsulated landscape file to raster. ; Limitation of ImageMagick, and specifically, GhostScript, which does ; the conversion. IF keywords.encapsulated && keywords.landscape THEN BEGIN Message, 'ImageMagick cannot successfully convert an encapsulated ' + $ 'PostScript file in landscape mode to a raster file. Returning...' ENDIF ; Draw the graphics. self -> ExecuteCommands ; Close the file and convert to proper file type. CASE filetype OF 'BMP': cgPS_Close, /BMP, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width, NOMESSAGE=self.ps_quiet 'GIF': cgPS_Close, /GIF, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width, NOMESSAGE=self.ps_quiet 'JPEG': cgPS_Close, /JPEG, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width, NOMESSAGE=self.ps_quiet 'PNG': cgPS_Close, /PNG, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width, NOMESSAGE=self.ps_quiet 'TIFF': cgPS_Close, /TIFF, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width, NOMESSAGE=self.ps_quiet ENDCASE ;IF ~self.ps_quiet THEN Print, 'Output file is located here: ' + outfilename END ENDCASE ; Set the window index number back. IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method copies the contents of the draw widget to the current graphics window using ; the DEVICE COPY method. The DEVICE COPY command looks like this:: ; ; DEVICE, COPY=[origin[0], origin[1], extent[0], extent[1], destination[0], destination[1], self.wid] ; ; If the IMAGE keyword is used, the window contents are stored in a band-interleaved image variable ; and the window contents are not copied into the current graphics window. ; ; :Keywords: ; destination: in, optional, type=intarr(2) ; A two-element array specifying the device coordinates of the lower-left ; corner of the copied region in the destination window. By default, [0,0]. ; extent: in, optional, type=intarr(2) ; A two-element array specifying the number of columns and rows to copy. ; If missing, the entire draw widget window is copied. By default, [!D.X_Size, !D.Y_Size]. ; image: out, optional, type=byte ; Set this keyword to a named IDL variable that returns a copy of the draw ; widget contents as a band interleaved (MxNx3) image. If this keyword is set ; nothing is copied from the window. ; origin: in, optional, type=intarr(2) ; A two-element array specifying the device coordinates of the lower-left ; corner of region in the draw widget window to be copied. By default, [0,0]. ;- PRO cgCmdWindow::Copy, $ DESTINATION=dest, $ EXTENT=extent, $ IMAGE=image, $ ORIGIN=origin Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Get the window ID of the window we are copying to. destination = !D.Window ; Make the draw widget the current graphics window. WSet, self.wid ; Check the input parameters IF (N_Elements(origin) NE 2) THEN origin = [0, 0] IF (N_Elements(extent) NE 2) THEN extent = [!D.X_Size, !D.Y_Size] IF (N_Elements(dest ) NE 2) THEN dest = [0, 0] ; If we're using an output variable, capture the current window IF Arg_Present(image) THEN BEGIN image = cgSnapshot(origin[0], origin[1], extent[0], extent[1], TRUE=3) IF (destination NE -1) THEN WSet, destination ENDIF ELSE BEGIN IF (destination NE -1) THEN WSet, destination ELSE Message, 'No current window to copy into.' DEVICE, COPY=[origin[0], origin[1], extent[0], extent[1], dest[0], dest[1], self.wid] ENDELSE END ;+ ; This method allows you to turn draw widget events on and off and to set ; the name of an event handler procedure to accept these widget events. ; An event handler procedure must be defined to get the events processed ; correctly. ; ; :Keywords: ; button_events: in, optional, type=boolean ; Set this keyword to turn button events on for the draw widget. ; drop_events: in, optional, type=boolean ; Set this keyword to turn drop events on for the draw widget. ; event_handler: in, optional, type=string ; The name of an event handler procedure to accept events from ; the draw widget. Write the event handler procedure with two ; positional parameters. The first will be the event structure ; returned from the draw widget. The second will be the cgCmdWindow ; object reference (i.e., self) to allow you to manipulate the ; command window. ; keyboard_events: in, optional, type=boolean ; Set this keyword to turn keyboard events on for the draw widget. ; motion_events: in, optional, type=boolean ; Set this keyword to turn motion events on for the draw widget. ; storage: in, optional, type=any ; Any user-defined IDL variable will be stored in the object storage location. ; Defined here for convenience. Same as `Storage` keyword for the SetProperty method. ; tracking_events: in, optional, type=boolean ; Set this keyword to turn tracking events on for the draw widget. ; wheel_events: in, optional, type=boolean ; Set this keyword to turn wheel events on for the draw widget. ;- PRO cgCmdWindow::DrawWidgetConfig, $ Button_Events=button_events, $ Drop_Events=drop_events, $ Event_Handler=event_handler, $ Keyboard_Events=keyboard_events, $ Motion_Events=motion_events, $ Storage=storage, $ Tracking_Events=tracking_events, $ Wheel_Events=wheel_events IF N_Elements(button_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Button_Events=Keyword_Set(button_events) IF N_Elements(drop_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Drop_Events=Keyword_Set(drop_events) IF N_Elements(event_handler) NE 0 THEN self.event_handler = event_handler IF N_Elements(keyboard_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Keyboard_Events=Keyword_Set(keyboard_events) IF N_Elements(motion_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Motion_Events=Keyword_Set(motion_events) IF N_Elements(storage) NE 0 THEN self -> SetProperty, Storage=storage IF N_Elements(tracking_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Tracking_Events=Keyword_Set(tracking_events) IF N_Elements(wheel_events) NE 0 THEN $ Widget_Control, self.drawID, Draw_Wheel_Events=Keyword_Set(wheel_events) END ;+ ; This event handler processes draw widget events and sends the events ; to a user-defined event handler, if such and event handler exists. ; The event handler must be defined to accept two positional parameters. ; The first is the event structure returned by the draw widget, and the ; second is the cgCmdWindow object reference. ; ; :Params: ; event: in, required, type=structure ; An event structure. ;- PRO cgCmdWindow::DrawWidgetEvents, event Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Make the draw widget the current graphics window. WSet, self.wid ; Pass the event on to the event handler, if there is one. IF self.event_handler NE "" THEN BEGIN Call_Procedure, self.event_handler, event ENDIF ELSE Message, 'No event handler has been specified for draw widget events from cgCmdWindow.' END ;+ ; Sends the window commands to a PostScript file. ; ; :Params: ; event: in, required, type=structure ; An event structure. ;- PRO cgCmdWindow::CreatePostScriptFile, event Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() ; Close the PostScript file. cgPS_Close, /NoFix ; Set the window index number back. IF N_Elements(currentWindow) NE 0 THEN BEGIN IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 ENDIF RETURN ENDIF ; Make this window the current graphics windows currentWindow = !D.Window WSet, self.wid ; Construct a file name, if you have one. ext = self.ps_encapsulated ? '.eps' : '.ps' IF self.lastWriteFile NE "" THEN BEGIN filename = Filepath(ROOT_DIR=self.lastWriteDir, self.lastWriteFile + ext) ENDIF ELSE BEGIN CD, CURRENT=thisDir filename = Filepath(ROOT_DIR=thisDir, 'cgwindow' + ext) ENDELSE ; Allow the user to configure the PostScript file. cgPS_Open, /GUI, $ CANCEL=cancelled, $ CHARSIZE=self.ps_charsize, $ DECOMPOSED=self.ps_decomposed, $ EUROPEAN=self.ps_metric, $ ENCAPSULATED=self.ps_encapsulated, $ FILENAME=filename, $ FONT=self.ps_font, $ GROUP_LEADER=self.tlb, $ KEYWORDS=keywords, $ SCALE_FACTOR=self.ps_scale_factor, $ QUIET=self.ps_quiet, $ TT_FONT=self.ps_tt_font IF cancelled THEN RETURN ; Save the name of the last output file. self.lastWriteDir = File_DirName(keywords.filename) self.lastWriteFile = cgRootName(keywords.filename) ; Execute the graphics commands. self -> ExecuteCommands ; Clean up. cgPS_Close ; Set the window index number back. IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; Deletes a command object from the command list maintained by the window. ; ; :Params: ; cmdIndex: in, optional, type=integer ; The zero-based index of the command to delete. If undefined, the ; index of the last command in the window is used. ; ; :Keywords: ; all: in, optional, type=boolean ; If set, all the commands in the command list are deleted. ;- PRO cgCmdWindow::DeleteCommand, cmdIndex, ALL=all Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Get the command count. count = self.cmds -> Get_Count() ; Delete all the commands? Is so, delete and RETURN. IF Keyword_Set(all) THEN BEGIN self.cmds -> Delete_Nodes, /DESTROY self -> ExecuteCommands RETURN ENDIF ; Need a command index? IF N_Elements(cmdIndex) EQ 0 THEN BEGIN cmdIndex = count - 1 ENDIF ; Do we have a command with this command number? IF cmdIndex GT (count-1) THEN Message, 'A command with index ' + StrTrim(cmdIndex,2) + ' does not exist.' IF cmdIndex GE 0 THEN BEGIN self.cmds -> Delete, cmdIndex, /Destroy self -> ExecuteCommands ENDIF ELSE Message, 'A negative command index number is not allowed.' END ;---------------------------------------------------------------------------------------------------------------- ;+ ; All widget events come here and are dispatched to the proper object method. ; ; :Params: ; event: in, required, type=structure ; An event structure. ;- PRO cgCmdWindow_Dispatch_Events, event Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Get the window object. Widget_Control, event.top, GET_UVALUE=self ; Get the event type. If the type is an object, then ; this must be a resize event from the TLB. eventType = Widget_Info(event.id, /UNAME) ; Dispatch the events to the proper method. CASE eventType OF 'DRAW_WIDGET': self -> DrawWidgetEvents, event 'IMAGEMAGICK_BMP': self -> SaveAsRaster, event 'IMAGEMAGICK_GIF': self -> SaveAsRaster, event 'IMAGEMAGICK_JPEG': self -> SaveAsRaster, event 'IMAGEMAGICK_PNG': self -> SaveAsRaster, event 'IMAGEMAGICK_TIFF': self -> SaveAsRaster, event 'POSTSCRIPT': self -> CreatePostscriptFile, event 'PDF': self -> SaveAsRaster, event 'RASTER_BMP': self -> SaveAsRaster, event 'RASTER_GIF': self -> SaveAsRaster, event 'RASTER_JPEG': self -> SaveAsRaster, event 'RASTER_PNG': self -> SaveAsRaster, event 'RASTER_TIFF': self -> SaveAsRaster, event 'RESTORECOMMANDS': self -> RestoreCommands 'SAVECOMMANDS': self -> SaveCommands 'TLB_RESIZE': self -> Resize, event.x, event.y 'QUIT': Obj_Destroy, self ELSE: Message, 'Unknown type of event: ' + eventtype + '. Cannot dispatch properly.' ENDCASE END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method executes the commands on the command list. ;- PRO cgCmdWindow::ExecuteCommands Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() !P.Multi = thisMulti !X.OMargin = thisXOmargin !Y.OMargin = thisYOmargin IF N_Elements(rr) NE 0 THEN TVLCT, rr, gg, bb IF (!D.Flags AND 256) NE 0 THEN WSet, -1 RETURN ENDIF ; Make sure you are suppose to be executing these commands. IF Keyword_Set(self.noExecuteCommands) THEN RETURN ; Store the current !P.MULTI state. thisMulti = !P.Multi thisXOmargin = !X.OMargin thisYOmargin = !Y.OMargin ; Make this window the current graphics window. IF (!D.Flags AND 256) NE 0 THEN BEGIN currentWindow = !D.Window WSet, self.wid ENDIF ; Get the current color table vectors so they can be restored. TVLCT, rr, gg, bb, /GET ; Load the color vectors. TVLCT, *self.r, *self.g, *self.b ; Erase the window. IF self.eraseit THEN cgErase, *self.background ; Are we doing multiple commands? IF Total(self.pmulti) NE 0 THEN !P.Multi = self.pmulti IF Total(self.xomargin) NE 0 THEN !X.OMargin = self.xomargin IF Total(self.yomargin) NE 0 THEN !Y.OMargin = self.yomargin ; How many commands are there? n_cmds = self.cmds -> Get_Count() ; Execute the commands. FOR j=0,n_cmds-1 DO BEGIN thisCmdObj = self.cmds -> Get_Item(j, /DEREFERENCE) ; Execute the command. thisCmdObj -> Draw, SUCCESS=success ; Did you successfully draw this command? IF ~success THEN BEGIN thisCmdObj -> List answer = Dialog_Message('Problem executing the command shown ' + $ 'in the console output. Delete command?', /QUESTION) IF StrUpCase(answer) EQ 'YES' THEN BEGIN self -> DeleteCommand, j !P.Multi = thisMulti !X.OMargin = thisXOmargin !Y.OMargin = thisYOmargin IF N_Elements(rr) NE 0 THEN TVLCT, rr, gg, bb IF (!D.Flags AND 256) NE 0 THEN WSet, -1 RETURN ENDIF ENDIF ; Need to delay? IF self.delay NE 0 THEN Wait, self.delay ENDFOR ; Save the current data coordinate system. self -> SaveDataCoords ; If there are no commands, then just erase the window. IF n_cmds EQ 0 THEN cgErase, *self.background ; Restore the colors in effect when we entered. TVLCT, rr, gg, bb ; Set the !P.Multi and outside margin system variables back to its original values. !P.Multi = thisMulti !X.OMargin = thisXOmargin !Y.OMargin = thisYOmargin ; Reset the current graphics window, if possible. IF (!D.Flags AND 256) NE 0 THEN BEGIN IF (currentWindow GE 0) && WindowAvailable(currentWindow) THEN BEGIN WSet, currentWindow ENDIF ELSE WSet, -1 ENDIF END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method retrieves the value of a keyword from a particular command, ; if it can. ; ; :Params: ; keyword: in, required, type=string ; The name of the keyword you would like to retrieve from the command. ; cmdindex: in, required, type=integer ; The index number of the command you wish to retrieve the keyword from. ; ; :Keywords: ; success: out, optional, type=boolean ; If the program can successfully get the keyword, this variable will ; contain the value 1. Otherwise, it will contain the value 0. ;- FUNCTION cgCmdWindow::GetCommandKeyword, keyword, cmdIndex, SUCCESS=success Compile_Opt idl2 Catch, theError IF theError NE 0 THEN BEGIN void = cgErrorMsg() success = 0 RETURN, success ENDIF ; Assume failure. success = 0 IF N_Params() NE 2 THEN BEGIN Print, 'Useage: keywordValue = obj -> GetCommandKeyword(keywordName, commandIndex)' RETURN, "" ENDIF IF Size(keyword, /TNAME) NE 'STRING' THEN Message, 'Keyword name must be a string variable.' ; Make sure command index is in the range. cmdIndex = 0 > cmdIndex < ((self.cmds -> Get_Count()) - 1) ; Get the keywords for the proper command. cmdObject = self.cmds -> Get_Item(cmdIndex, /DEREFERENCE) keywordStruct = cmdObject -> Get_Keywords(HAS_KEYWORDS=has_keywords) ; Does this command have keywords? retValue = "" IF has_keywords THEN BEGIN tagNames = Tag_Names(keywordStruct) keyIndex = Where(tagNames EQ StrUpCase(keyword), nameCount) IF nameCount GT 0 THEN BEGIN retvalue = keywordStruct.(nameCount) success = 1 ENDIF ELSE Message, 'This command has no keyword named: ' + keyword ENDIF ELSE Message, 'This command has no keywords.' RETURN, retValue END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method retrieves properties from the object. ; ; :Keywords: ; adjustsize: out, optional, type=boolean ; Set this keyword to adjust default character size to the display window size. ; background: out, optional, type=string ; The background color of the window. Only use if the ERASEIT property is also set. ; commands: out, optional ; A list of the commands stored in the window. ; delay: out, optional, type=float ; Set this keyword to the amount of "delay" you want between commands in the command list. ; dimensions: out, optional, type=intarr(2) ; Set this keyword to a two-element array giving the xsize and ysize ; of the draw widget. ; eraseit: out, optional, type=boolean ; If this property is set, the cgWindow erases with the background color before ; displaying the commands in the window's command list. ; im_density: out, optional, type=integer, default=300 ; Set this keyword to the sampling density when ImageMagick creates raster image ; file from PostScript outout. ; im_options: out, optional, type=string, default="" ; Set this keyword to any ImageMagick options you would like to pass along to the ; ImageMagick convert command when creating raster image files from PostScript output. ; im_resize: out, optional, type=integer, default=25 ; Set this keyword to percentage that the raster image file created my ImageMagick ; from PostScript output should be resized. ; im_raster: out, optional, type=boolean, default=1 ; Set this keyword to zero to create raster files using the create_png etc. keywords ; directly, instead of via ImageMagick. ; im_transparent: out, optional, type=boolean, default=0 ; Set this keyword to allow ImageMagick to create transparent backgrounds when it ; makes raster image files from PostScript output. ; multi: out, optional, type=Intarr(5) ; Set this keyword to the !P.MULTI setting you want to use for the window. ; !P.MULTI is set to this setting before command execution, and set back to ; it's default value when the commands are finished executing. ; noexecutecommands: out, optional, type=boolean, default=0 ; Set this keyword to 1 to prevent the window from executing the commands and to ; 0 if you want the window to execute the commands. ; palette: out, optional, type=byte ; Use this keyword to pass in an N-by-3 (or 3-by-N) byte array containing the ; R, G, and B vectors of a color table. It is probably easier to use cgLoadCT or ; XCOLORS to load color tables for the window, but this is provided as another option. ; pdf_path: out, optional, type=string ; Set this keyword to the name of the path to the Ghostscript command for converting PS to PDF. ; pdf_unix_convert_cmd: out, optional, type=string ; Set this keyword to the name of an alternative UNIX command to convert PostScript to PDF. ; ps_charsize: out, optional, type=float ; The PostScript character size. ; ps_decomposed: out, optional, type=boolean, default=0 ; Set this keyword to zero to set the PostScript color mode to indexed color and to ; one to set the PostScript color mode to decomposed color. ; ps_delete: out, optional, type=boolean, default=1 ; Set this keyword to zero if you want to keep the PostScript output ImageMagick creates ; when making raster file output. ; ps_encapsulated: out, optional, type=boolean, default=0 ; Set this keyword to configure cgPS_Config to produce encapsulated PostScript output by default. ; ps_font: out, optional, type=integer ; Set this keyword to the type of font you want to use in PostScript output. It sets the ; FONT keyword on the cgPS_Config command. Normally, 0 (hardware fonts) or 1 (true-type fonts). ; ps_metric: out, optional, type=boolean, default=0 ; Set this keyword to configure cgPS_Config to use metric values and A4 page size in its interface. ; ps_quiet: out, optional, type=boolean, default=0 ; Set this keyword to set the QUIET keyword on cgPS_Open. ; ps_scale_factor: out, optional, type=float ; Set his keyword to the PostScript scale factor you wish to use in creating PostScript output. ; ps_tt_font: out, optional, type=string ; Set this keyword to the name of a true-type font to use in creating PostScript output. ; storage: out, optional ; An IDL variable that was defined and stored here by the program's user . ; tlb: out, optional, type=long ; The widget identifier of the top-level base widget. ; wid: out, optional, type=integer ; The window index number of the draw widget. ; xomargin: out, optional, type=intarr(2) ; Sets the !X.OMargin system variable when multiple plots are displayed in the window. ; yomargin: out, optional, type=intarr(2) ; Sets the !Y.OMargin system variable when multiple plots are displayed in the window. ;- PRO cgCmdWindow::GetProperty, $ ADJUSTSIZE=adjustsize, $ BACKGROUND=background, $ COMMANDS=commands, $ DELAY=delay, $ DIMENSIONS=dimensions, $ ERASEIT=eraseit, $ IM_DENSITY=im_density, $ ; Sets the density parameter on ImageMagick convert command. IM_RESIZE=im_resize, $ ; Sets the resize parameter on ImageMagick convert command. IM_OPTIONS=im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command. IM_RASTER=im_raster, $ ; Sets whether to generate raster files via ImageMagick IM_TRANSPARENT=im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command. NOEXECUTECOMMANDS=noExecuteCommands, $ ; Set if you want commands to execute commands. MULTI=multi, $ PALETTE=palette, $ PDF_PATH=pdf_path, $ ; The path to the Ghostscript conversion command. PDF_UNIX_CONVERT_CMD=pdf_unix_convert_cmd, $ ; Command to convert PS to PDF. PS_CHARSIZE=ps_charsize, $ ; Select the character size for PostScript output. PS_DECOMPOSED=ps_decomposed, $ PS_DELETE=ps_delete, $ PS_ENCAPSULATED=ps_encapsulated, $ PS_FONT=ps_font, $ ; Select the font for PostScript output. PS_METRIC=ps_metric, $ PS_SCALE_FACTOR=ps_scale_factor, $ ; Select the scale factor for PostScript output. PS_QUIET=ps_quiet, $ PS_TT_FONT=ps_tt_font, $ ; Select the true-type font to use for PostScript output. TLB=tlb, $ STORAGE=storage, $ WID=wid, $ XOMARGIN=xomargin, $ YOMARGIN=yomargin, $ _EXTRA=extra Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Window properties. IF Arg_Present(adjustsize) THEN adjustsize = self.adjustsize IF Arg_Present(background) THEN background = *self.background IF Arg_Present(palette) THEN BEGIN len = N_Elements(*self.r) palette = BytArr(len,3) palette[*,0] = *self.r palette[*,1] = *self.g palette[*,2] = *self.b ENDIF IF Arg_Present(commands) THEN commands = self.cmds IF Arg_Present(dimensions) THEN BEGIN thisWindow = !D.Window WSet, self.wid dimensions = [!D.X_Size, !D.Y_Size] IF thisWindow GE 0 THEN WSet, thisWindow ENDIF IF Arg_Present(delay) THEN delay = self.delay IF Arg_Present(eraseit) THEN eraseit = self.eraseit IF Arg_Present(multi) THEN multi = self.pmulti IF Arg_Present(tlb) THEN tlb = self.tlb IF Arg_Present(storage) THEN IF Ptr_Valid(self.storage) THEN storage = *self.storage IF Arg_Present(wid) THEN wid = self.wid IF Arg_Present(xomargin) THEN xomargin = self.xomargin IF Arg_Present(yomargin) THEN yomargin = self.yomargin ; PDF properties. pdf_unix_convert_cmd = self.pdf_unix_convert_cmd pdf_path = self.pdf_path ; PostScript properties. ps_charsize = self.ps_charsize ps_decomposed = self.ps_decomposed ps_delete = self.ps_delete ps_encapsulated = self.ps_encapsulated ps_metric = self.ps_metric ps_font = self.ps_font ps_quiet = self.ps_quiet ps_scale_factor = self.ps_scale_factor ps_tt_font = self.ps_tt_font ; ImageMagick properties. im_transparent = self.im_transparent im_density = self.im_density im_options = self.im_options im_resize = self.im_resize im_raster = self.im_raster noExecuteCommands = self.noExecuteCommands ; You may have gotten keywords you don't know what to deal with. Inform ; the user there. IF N_Elements(extra) NE 0 THEN BEGIN tags = Tag_Names(extra) FOR j=0,N_Elements(tags)-1 DO BEGIN Message, 'The following property could NOT be obtained in the GetProperty method: ' + tags[j], /Informational ENDFOR ENDIF END ;---------------------------------------------------------------------------------------------------------------- ;+ ; :Private: ; This method invalidates a widget ID. It is used for restored ; visualizations, so that the current window doesn't get inadvertenly ; destroyed by a widget identifier from an old program. ;- PRO cgCmdWindow::InvalidateWidgetID self.tlb = -1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method lists the command indicated by the command index. In the ; absence of the command index, all commands are listed. ; ; :Params: ; cmdindex: in, optional, type=index ; The index number of the command you wish to list. If not supplied, ; all the commands in the window are listed. ; :Keywords: ; createcommandstruct: out, optional, type=structure ; Set to a named variable to return a command structure of this command. ;- PRO cgCmdWindow::ListCommand, cmdIndex, CREATECOMMANDSTRUCT=createCommandStruct Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Need a command structure? createCommandStruct = Keyword_Set(createCommandStruct) ; How many commands are there? count = self.cmds -> Get_Count() IF N_Elements(cmdIndex) EQ 0 THEN BEGIN FOR j = 0, count-1 DO BEGIN thisCmdObj = self.cmds -> Get_Item(j, /DEREFERENCE) ; Preface the commands with their index number. thisCmdObj -> List, StrTrim(j,2) + '.' ; Create the command struct IF createCommandStruct THEN thisCmdObj -> CreateCommandStruct, 'cmd' + StrTrim(j,2) ENDFOR ENDIF ELSE BEGIN IF cmdIndex LT (count-1) THEN BEGIN thisCmdObj = self.cmds -> Get_Item(cmdIndex, /DEREFERENCE) ; Preface the commands with their index number. thisCmdObj -> List, StrTrim(cmdIndex,2) + '.' ; Create the command struct IF createCommandStruct THEN thisCmdObj -> CreateCommandStruct, 'cmd' + StrTrim(cmdIndex,2) ENDIF ELSE Message, 'The command index is out of range of the number of commands.' ENDELSE END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method loads color table vectors into the program. ; The XCOLORS_DATA keyword is required to get color vector ; information from XCOLORS. ; ; :Params: ; r: in, optional, type=bytarr(256) ; The red color vector. ; g: in, optional, type=bytarr(256) ; The green color vector. ; b: in, optional, type=bytarr(256) ; The blue color vector. ; ; :Keywords: ; xcolors_data: in, optional, type=structure ; The information XColors sends to an object when colors are changed ; in XColors. ; ;- PRO cgCmdWindow::LoadColors, r, g, b, XCOLORS_DATA=colorData Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Load the vectors IF N_Elements(r) NE 0 THEN *self.r = r IF N_Elements(g) NE 0 THEN *self.g = g IF N_Elements(b) NE 0 THEN *self.b = b IF N_Elements(colorData) NE 0 THEN BEGIN *self.r = colorData.r *self.g = colorData.g *self.b = colorData.b ENDIF ; Execute the commands. self -> ExecuteCommands END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method creates PostScript, PDF, BMP, GIF, JPEG, PNG, and TIFF file output ; from the pixmap window contents. The method assumes ImageMagick and Ghostscript ; are installed correctly. ; ; :Params: ; filename: in, optional, type=string, default='idl.ps' ; The name of the output file. The type of file is determined from the ; file name extension. ;- PRO cgCmdWindow::Output, filename Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Need a filename? IF N_Elements(filename) EQ 0 THEN filename = 'idl.ps' ; The type of file is determined by the filename extension. rootname = cgRootName(filename, DIRECTORY=dir, EXTENSION=ext) CASE StrUpCase(ext) OF 'PS': self -> AutoPostScriptFile, filename 'EPS': self -> AutoPostScriptFile, filename 'PDF': self -> AutoRasterFile, 'PDF', filename 'BMP': self -> AutoRasterFile, 'BMP', filename 'GIF': self -> AutoRasterFile, 'GIF', filename 'JPG': self -> AutoRasterFile, 'JPEG', filename 'JPEG': self -> AutoRasterFile, 'JPEG', filename 'PNG': self -> AutoRasterFile, 'PNG', filename 'TIF': self -> AutoRasterFile, 'TIFF', filename 'TIFF': self -> AutoRasterFile, 'TIFF', filename ELSE: Message, 'Unknown file type: ' + StrUpCase(ext) + '.' ENDCASE END ;+ ; Packages the command up into a command object that can be added to the window ; or used to replace commands that are already in the window. ; ; :Returns: ; The command, packaged as a cgWindow_Command object, is returned. ; ; :Params: ; command: in, required, type=string ; The graphics procedure command to be executed. This parameter ; must be a string and the the command must be a procedure. Examples ; are 'Surface', 'Contour', 'Plot', 'cgPlot', cgContour, etc. ; p1: in, optional, type=any ; The first positional parameter appropriate for the graphics command. ; p2: in, optional, type=any ; The second positional parameter appropriate for the graphics command. ; p3: in, optional, type=any ; The third positional parameter appropriate for the graphics command. ; p4: in, optional, type=any ; The fourth positional parameter appropriate for the graphics command. ; ; :Keywords: ; addcmd: in, optional, type=boolean, default=0 ; Set this keyword to add the packaged command to the command list. ; altps_Keywords: in, optional, type=string ; A structure containing alternative keyword names (as tags) and values for ; those keywords to be used when the current device is the PostScript device. ; See http://www.idlcoyote.com/cg_tips/kwexpressions.php and the examples ; below for details on how to use this keyword. ; altps_Params: in, optional, type=IntArr(3) ; A structure containing alternative parameter values to be used when ; the current device is the PostScript device. Structure names are restricted ; to the names "P1", "P2", "P3" and "P4" to correspond to the equivalent positional ; parameter. See http://www.idlcoyote.com/cg_tips/kwexpressions.php and the ; examples below for details on how to use this keyword. ; cmdindex: in, optional, type=integer ; The command list index. This is used when adding or replacing a command. If the ; command index is undefined when replacing a command, all the commands in the command ; list are replaced with the command that is being added. If the command index is ; undefined when adding a command, the command is added to the end of the command list. ; execute: in, optional, type=boolean, default=0 ; Set this keyword is you want to execute the commands in the command list as soon as ; the current command is added to the list. Otherwise, no command execution takes place. ; method: in, optional, type=boolean, default=0 ; Set this keyword if the command is an object method call rather than a ; procedure call. If this keyword is set, the first positional parameter, p1, ; must be present and must be a valid object reference. ; multi: in, optional, type=intarr(5) ; A replacement value to assign to the self.pmulti value. It is ; a way to reset multiple command plotting to single command plotting ; for a new single command. Like calling: object -> SetPropery, MULTI=multi. Used only if ; `ReplaceCmd` is set. ; replacecmd: in, optional, type=boolean, default=0 ; Set this keyword to replace a graphics command with this packaged command on the command list ; If `CmdIndex` is undefined, *all* the commands on the command list are replaced. ; _extra: in, optional ; Any extra keywords are collected by keyword inheritance for the command structure. ;- FUNCTION cgCmdWindow::PackageCommand, command, p1, p2, p3, p4, $ AddCmd=addCmd, $ ; Add the command to the command list AltPS_Keywords=altps_Keywords, $ ; A structure of PostScript alternative keywords and values. AltPS_Params=altps_Params, $ ; A structure of PostScript alternative parameters and values. CmdIndex=cmdIndex, $ ; The location of the command in the command list. DestroyObjects=destroyobjects, $ ; Set this keyword to destroy parameter objects on exit. Execute=execute, $ ; Execute the commands in the window, if this keyword set. Method=method, $ ; A flag that indicates a method call. Multi=multi, $ ; If you are replacing all commands, you may want to change the way they are displayed. ReplaceCmd=replaceCmd, $ ; Set this keyword to replace one or all commands in the command list. _Extra=extra ; Extra keywords to the command. Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN, Obj_New() ENDIF newCommand = Obj_New('cgWindow_Command', COMMAND=command, $ P1=p1, P2=p2, P3=p3, P4=p4, KEYWORDS=extra, AltPS_Keywords=altps_Keywords, $ AltPS_Params=altps_Params, TYPE=Keyword_Set(method), DESTROYOBJECTS=Keyword_Set(destroyObjects)) ; Replace command? If the cmdIndex is undefined, ALL commands are replaced. IF Keyword_Set(replaceCmd) THEN self -> ReplaceCommand, newCommand, cmdIndex, Multi=multi ; Need to add a command? IF Keyword_Set(addCmd) THEN self -> AddCommand, newCommand, INDEX=cmdIndex ; Execute the commands? IF Keyword_Set(execute) THEN self -> ExecuteCommands ; Return the packaged command. RETURN, newCommand END ;+ ; This method replaces a command in the command list. If cmdIndex is missing, ; all the commands in the command list are replaced by this command. ; ; :Params: ; command: in, required, type=object ; The new command object. ; cmdindex: in, optional, type=integer ; The index number of the "command" to replace. If absent, then ; all the current commands are replaces with this new command. ; :Keywords: ; multi: in, optional, type=intarr(5) ; A replacement value to assign to the self.pmulti value. It is ; a way to reset multiple command plotting to single command plotting ; for a new single command. Like calling: object -> SetPropery, MULTI=multi. ;- PRO cgCmdWindow::ReplaceCommand, command, cmdIndex, MULTI=multi Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; If cmdIndex is missing, remove all the current commands with this one. IF N_Elements(cmdIndex) EQ 0 THEN BEGIN self.cmds -> Delete, /ALL, /Destroy IF N_Elements(multi) NE 0 THEN BEGIN self.pmulti = multi ; Reset !P.Multi to new value. ENDIF ELSE BEGIN self.pmulti = Intarr(5) ; Reset !P.Multi to zero. ENDELSE self.cmds -> Add, command ENDIF ELSE BEGIN ; Get the old command first, so you can destroy it properly. oldcmd = self.cmds -> Get_Item(cmdIndex, /DEREFERENCE) self.cmds -> Replace_Item, command, cmdIndex Obj_Destroy, oldcmd ENDELSE END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method resizes the graphics window and executes the commands again. ; ; :Params: ; x: in, required, type=integer ; The new X size of the draw widget in device coordinates. ; y: in, required, type=integer ; The new Y size of the draw widget in device coordinates. ;- PRO cgCmdWindow::Resize, x, y Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Make sure we have both sizes. IF N_Params() NE 2 THEN Message, 'Resize method requires both an X and Y size be specified.' ; Do you need to maintain the aspect ratio of the window? IF self.waspect NE 0 THEN BEGIN IF self.waspect GE 1 THEN BEGIN ysize = y xsize = Round(y / self.waspect) ENDIF ELSE BEGIN xsize = x ysize = Round(x * self.waspect) ENDELSE ENDIF ELSE BEGIN xsize = x ysize = y ENDELSE Widget_Control, self.drawID, DRAW_XSIZE=xsize, DRAW_YSIZE=ysize self -> ExecuteCommands END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This event handler method saves the graphics window as a raster image file. ; PDF files also pass through here. ; ; :Params: ; event: in, required, type=structure ; The event structure. ;- PRO cgCmdWindow::SaveAsRaster, event Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() ; Close the PostScript file. cgPS_Close, /NoFix ; Set the window index number back. IF N_Elements(currentWindow) NE 0 THEN BEGIN IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 ENDIF RETURN ENDIF ; Only going in here for down event. IF event.select NE 1 THEN RETURN buttonValue = Widget_Info(event.id, /UNAME) ; Is this a PDF file or a raster file? IF buttonValue EQ 'PDF' THEN BEGIN rasterType = -1 filetype = 'PDF' ENDIF ELSE BEGIN ; Determine if this is normal raster (0) or ImageMagick raster (1). IF StrMid(buttonValue, 0, 6) EQ 'RASTER' THEN BEGIN fileType = StrMid(buttonValue, 7) rasterType = 0 ENDIF ELSE BEGIN filetype = StrMid(buttonValue, 12) rasterType = 1 ENDELSE ENDELSE ; Make this window the current graphics windows. currentWindow = !D.Window WSet, self.wid ; Construct a file name, if you have one. CASE filetype OF 'BMP': ext = '.bmp' 'GIF': ext = '.gif' 'JPEG': ext = '.jpg' 'PDF': ext = '.pdf' 'PNG': ext = '.png' 'TIFF': ext = '.tif' ENDCASE IF self.lastWriteFile NE "" THEN BEGIN filename = Filepath(ROOT_DIR=self.lastWriteDir, self.lastWriteFile + ext) ENDIF ELSE BEGIN CD, CURRENT=thisDir filename = Filepath(ROOT_DIR=thisDir, 'cgwindow' + ext) ENDELSE ; Get a filename from the user. CASE filetype OF 'BMP': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') 'GIF': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') 'JPEG': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') 'PDF': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') 'PNG': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') 'TIFF': filename = cgPickfile(FILE=filename, /WRITE, TITLE='Select an Output File...') ENDCASE IF filename EQ "" THEN RETURN ; Parset the name. root_name = cgRootName(filename, DIRECTORY=dirName) outname = Filepath(ROOT_DIR=dirname, root_name) ; Save this name. self.lastWriteFile = root_name self.lastWriteDir = dirName ; What kind of raster file. CASE rasterType OF ; PDF File. -1: BEGIN thisname = outname + '.ps' outname = outname + '.pdf' cgPS_Open, $ DECOMPOSED=self.ps_decomposed, $ FILENAME=thisname, $ GROUP_LEADER=self.tlb, $ METRIC=self.ps_metric, $ KEYWORDS=keywords, $ ; Returned cgPS_Config keywords. SCALE_FACTOR=self.ps_scale_factor, $ CHARSIZE=self.ps_charsize, $ FONT=self.ps_font, $ QUIET=self.ps_quiet, $ TT_FONT=self.ps_tt_font ; Draw the graphics. self -> ExecuteCommands ; Close the file and make a PDF file. cgPS_Close cgPS2PDF, thisname, outname, DELETE_PS=self.ps_delete, /SILENT, SUCCESS=success, $ UNIX_CONVERT_CMD=self.pdf_unix_convert_cmd, GS_PATH=self.pdf_path IF ~success THEN BEGIN Message, 'Unable to create PDF file. See cgPS2PDF documentation.' ENDIF ELSE BEGIN IF ~self.ps_quiet THEN Print, 'PDF output will be created here: ' + outname ENDELSE END ; Normal raster. 0: BEGIN void = cgSnapshot(TYPE=fileType, FILENAME=outname, /NODIALOG) IF ~self.ps_quiet THEN Print, 'Output file located here: ' + outname END ; Raster via ImageMagick. 1: BEGIN ; Create a PostScript file first. thisname = outname + '.ps' cgPS_Open, $ DECOMPOSED=self.ps_decomposed, $ FILENAME=thisname, $ GROUP_LEADER=self.tlb, $ METRIC=self.ps_metric, $ KEYWORDS=keywords, $ ; Returned cgPS_Config keywords. SCALE_FACTOR=self.ps_scale_factor, $ CHARSIZE=self.ps_charsize, $ FONT=self.ps_font, $ QUIET=1, $ TT_FONT=self.ps_tt_font ; Cannot successfully convert encapsulated landscape file to raster. ; Limitation of ImageMagick, and specifically, GhostScript, which does ; the conversion. IF keywords.encapsulated && keywords.landscape THEN BEGIN Message, 'ImageMagick cannot successfully convert an encapsulated ' + $ 'PostScript file in landscape mode to a raster file. Returning...' ENDIF ; Draw the graphics. self -> ExecuteCommands ; Close the file and convert to proper file type. CASE filetype OF 'BMP': cgPS_Close, /BMP, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width 'GIF': cgPS_Close, /GIF, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width 'JPEG': cgPS_Close, /JPEG, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width 'PNG': cgPS_Close, /PNG, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width 'TIFF': cgPS_Close, /TIFF, DELETE_PS=self.ps_delete, $ ALLOW_TRANSPARENT=self.im_transparent, $ DENSITY=self.im_density, RESIZE=self.im_resize, $ IM_OPTIONS=self.im_options, OUTFILENAME=outfilename, $ WIDTH=self.im_width ENDCASE IF ~self.ps_quiet THEN Print, 'Output will be created here: ' + outfilename END ENDCASE ; Set the window index number back. IF WindowAvailable(currentWindow) THEN WSet, currentWindow ELSE WSet, -1 END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method restores the commands from a specified file and loads them ; into the window. ; ; :Params: ; filename: in, required, type=string ; The name of the file containing the cgWindow commands that were previously saved. ;- PRO cgCmdWindow::RestoreCommands, filename Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Need a file name? IF N_Elements(filename) EQ 0 THEN BEGIN filename = cgPickfile(Title='Restore Coyote Graphics Commands...', $ FILTER='*.cgs') IF filename EQ "" THEN RETURN ENDIF ; Does the file exist? fileTest = File_Test(filename, /READ) IF ~fileTest THEN BEGIN text = 'The file (' + filename + ') cannot be located. Returning.' void = Dialog_Message(text) RETURN ENDIF ; Restore the file. The variables "cg_commands" and "cg_window" are restored. Restore, FILE=filename, /Relaxed_Structure_Assignment ; Make this object the current object. cgSet, self.wid ; Erase the current commands in the window. If this is not ; done memory will leak. cgErase, self.wid, /Window ; Copy the commands from the restored command list to this command list. oldCommands = cg_commands -> Get_Item(/DEREFERENCE, /ALL) self.cmds -> Delete, /ALL FOR j=0,N_Elements(oldCommands)-1 DO BEGIN thisCmd = oldCommands[j] -> Copy() self.cmds -> Add, thisCmd ENDFOR ; Copy properties from old window object to new. cg_window -> GetProperty, $ BACKGROUND=background, $ ; The background color of the window. DELAY=delay, $ ; The delay between command execution. ERASEIT=eraseit, $ ; Set the erase flag for the window PALETTE=palette, $ ; Change window color table vectors. MULTI=multi, $ ; Change the !P.MULTI setting for the window. XOMARGIN=xomargin, $ ; Change the !X.OMargin setting for the winow. YOMARGIN=yomargin, $ ; Change the !Y.OMargin setting for the window. IM_TRANSPARENT=im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command. IM_DENSITY=im_density, $ ; Sets the density parameter on ImageMagick convert command. IM_RESIZE=im_resize, $ ; Sets the resize parameter on ImageMagick convert command. IM_OPTIONS=im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command. IM_RASTER=im_raster, $ ; Sets whether to use ImageMagick to create raster files. PS_DELETE=ps_delete, $ ; Delete the PostScript file when making IM raster files. PS_METRIC=ps_metric, $ ; Select metric measurements in PostScript output. PS_ENCAPSULATED=ps_encapsulated, $ ; Select encapusulated PostScript output. PS_FONT=ps_font, $ ; Select the font for PostScript output. PS_CHARSIZE=ps_charsize, $ ; Select the character size for PostScript output. PS_SCALE_FACTOR=ps_scale_factor, $ ; Select the scale factor for PostScript output. PS_TT_FONT=ps_tt_font ; Select the true-type font to use for PostScript output. self -> SetProperty, $ BACKGROUND=background, $ ; The background color of the window. DELAY=delay, $ ; The delay between command execution. ERASEIT=eraseit, $ ; Set the erase flag for the window PALETTE=palette, $ ; Change window color table vectors. MULTI=multi, $ ; Change the !P.MULTI setting for the window. XOMARGIN=xomargin, $ ; Change the !X.OMargin setting for the winow. YOMARGIN=yomargin, $ ; Change the !Y.OMargin setting for the window. IM_TRANSPARENT=im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command. IM_DENSITY=im_density, $ ; Sets the density parameter on ImageMagick convert command. IM_RESIZE=im_resize, $ ; Sets the resize parameter on ImageMagick convert command. IM_OPTIONS=im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command. IM_RASTER=im_raster, $ ; Sets whether to use ImageMagick to create raster files. PS_DELETE=ps_delete, $ ; Delete the PostScript file when making IM raster files. PS_METRIC=ps_metric, $ ; Select metric measurements in PostScript output. PS_ENCAPSULATED=ps_encapsulated, $ ; Select encapusulated PostScript output. PS_FONT=ps_font, $ ; Select the font for PostScript output. PS_CHARSIZE=ps_charsize, $ ; Select the character size for PostScript output. PS_SCALE_FACTOR=ps_scale_factor, $ ; Select the scale factor for PostScript output. PS_TT_FONT=ps_tt_font ; Select the true-type font to use for PostScript output. ; The widget ID of the restored object must be invalidated, ; or the current object (with that widget ID) will be destroyed. cg_window -> InvalidateWidgetID Obj_Destroy, cg_window ; Execute the new commands. self -> ExecuteCommands END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method restores the current data coordinate system by restoring the system variable ; state from the last command execution. ;- PRO cgCmdWindow::RestoreDataCoords !MAP = *self.msysvar !P = self.psysvar !X = self.xsysvar !Y = self.ysysvar !Z = self.zsysvar END ;+ ; This method saves the commands from a cgWindow into a form that can be ; e-mailed to colleagues or restored to a cgWindow at some later time. ; ; :Params: ; filename: in, optional, type=string, default='commands.cgs' ; The name of the file where the cgWindow commands are to be saved. ;- PRO cgCmdWindow::SaveCommands, filename Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF ; Need a file name. IF N_Elements(filename) EQ 0 THEN BEGIN filename = cgPickfile(FILE='commands.cgs', $ TITLE='Save Coyote Graphics Commands...', /Write) IF filename EQ "" THEN RETURN ENDIF ; Copy the commands. cg_commands = self.cmds cg_window = self ; Save them in the file. Save, cg_commands, cg_window, FILE=filename END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method saves the current data coordinate system by saving all the plotting and mapping ; system variables after the commands have been executed in the program. ;- PRO cgCmdWindow::SaveDataCoords *self.msysvar = !Map self.psysvar = !P self.xsysvar = !X self.ysysvar = !Y self.zsysvar = !Z END ;+ ; This method sets properties of the window object. ; ; :Keywords: ; adjustsize: in, optional, type=boolean ; Set this keyword to adjust default character size to the display window size. ; background: in, optional, type=string ; The background color of the window. Only use if the ERASEIT property is also set. ; delay: in, optional, type=float ; Set this keyword to the amount of "delay" you want between commands in the command list. ; dimensions: in, optional, type=intarr(2) ; Set this keyword to a two-element array giving the xsize and ysize ; of the draw widget. ; eraseit: in, optional, type=boolean ; If this property is set, the cgWindow erases with the background color before ; displaying the commands in the window's command list. ; im_density: in, optional, type=integer, default=300 ; Set this keyword to the sampling density when ImageMagick creates raster image ; file from PostScript outout. ; im_options: in, optional, type=string, default="" ; Set this keyword to any ImageMagick options you would like to pass along to the ; ImageMagick convert command when creating raster image files from PostScript output. ; im_resize: in, optional, type=integer, default=25 ; Set this keyword to percentage that the raster image file created my ImageMagick ; from PostScript output should be resized. ; im_raster: in, optional, type=boolean, default=1 ; Set this keyword to zero to create raster files using the create_png etc. keywords ; directly, instead of via ImageMagick. ; im_transparent: in, optional, type=boolean, default=0 ; Set this keyword to allow ImageMagick to create transparent backgrounds when it ; makes raster image files from PostScript output. ; multi: in, optional, type=Intarr(5) ; Set this keyword to the !P.MULTI setting you want to use for the window. ; !P.MULTI is set to this setting before command execution, and set back to ; it's default value when the commands are finished executing. ; noexecutecommands: in, optional, type=boolean, default=0 ; Set this keyword to 1 to prevent the window from executing the commands and to ; 0 if you want the window to execute the commands. ; palette: in, optional, type=byte ; Use this keyword to pass in an N-by-3 (or 3-by-N) byte array containing the ; R, G, and B vectors of a color table. It is probably easier to use cgLoadCT or ; XCOLORS to load color tables for the window, but this is provided as another option. ; pdf_path: out, optional, type=string ; Set this keyword to the name of the path to the Ghostscript command for converting PS to PDF. ; pdf_unix_convert_cmd: out, optional, type=string ; Set this keyword to the name of an alternative UNIX command to convert PostScript to PDF. ; ps_charsize: in, optional, type=float ; The PostScript character size. ; ps_decomposed: in, optional, type=boolean, default=0 ; Set this keyword to zero to set the PostScript color mode to indexed color and to ; one to set the PostScript color mode to decomposed color. ; ps_delete: in, optional, type=boolean, default=1 ; Set this keyword to zero if you want to keep the PostScript output ImageMagick creates ; when making raster file output. ; ps_encapsulated: in, optional, type=boolean, default=0 ; Set this keyword to configure cgPS_Config to produce encapsulated PostScript output by default. ; ps_font: in, optional, type=integer ; Set this keyword to the type of font you want to use in PostScript output. It sets the ; FONT keyword on the cgPS_Config command. Normally, 0 (hardware fonts) or 1 (true-type fonts). ; ps_metric: in, optional, type=boolean, default=0 ; Set this keyword to configure cgPS_Config to use metric values and A4 page size in its interface. ; ps_quiet: in, optional, type=boolean, default=0 ; Set this keyword to set the QUIET keyword on cgPS_Open. ; ps_scale_factor: in, optional, type=float ; Set his keyword to the PostScript scale factor you wish to use in creating PostScript output. ; ps_tt_font: in, optional, type=string ; Set this keyword to the name of a true-type font to use in creating PostScript output. ; storage: in, optional ; A storage location for any kind of IDL variable. This functions like a user value in ; a widget program. ; update: in, optional, type=boolean, default=1 ; Set this keyword to zero if you do not want the updates to be done immediately ; after the properties are changed. ; wid: in, optional, type=integer ; The draw window index number. Not to be used by the user. Used by the draw widget ; Notify_Realize callback routine when the draw widget is realized. ; xomargin: in, optional, type=intarr(2) ; Sets the !X.OMargin system variable when multiple plots are displayed in the window. ; yomargin: in, optional, type=intarr(2) ; Sets the !Y.OMargin system variable when multiple plots are displayed in the window. ; ;- PRO cgCmdWindow::SetProperty, $ ADJUSTSIZE=adjustsize, $ ; Adjust the default charsize to match display size. BACKGROUND=background, $ ; The background color of the window. DELAY=delay, $ ; The delay between command execution. DIMENSIONS=dimensions, $ ; Set the dimensions of the draw widget. ERASEIT=eraseit, $ ; Set the erase flag for the window IM_DENSITY=im_density, $ ; Sets the density parameter on ImageMagick convert command. IM_OPTIONS=im_options, $ ; Sets extra ImageMagick options on the ImageMagick convert command. IM_RASTER=im_raster, $ ; Sets whether to use ImageMagick to create raster files. IM_RESIZE=im_resize, $ ; Sets the resize parameter on ImageMagick convert command. IM_TRANSPARENT=im_transparent, $ ; Sets the "alpha" keyword on ImageMagick convert command. IM_WIDTH = im_width, $ ; Sets the final width of the raster files create with ImageMagick. PDF_UNIX_CONVERT_CMD=pdf_unix_convert_cmd, $ ; Command to convert PS to PDF. PDF_PATH=pdf_path, $ ; The path to the Ghostscript conversion command. PALETTE=palette, $ ; Change window color table vectors. PS_CHARSIZE=ps_charsize, $ ; Select the character size for PostScript output. PS_DECOMPOSED=ps_decomposed, $ ; Sets the PostScript color mode. PS_DELETE=ps_delete, $ ; Delete the PostScript file when making IM raster files. PS_ENCAPSULATED=ps_encapsulated, $ ; Select encapusulated PostScript output. PS_FONT=ps_font, $ ; Select the font for PostScript output. PS_METRIC=ps_metric, $ ; Select metric measurements in PostScript output. PS_QUIET=ps_quiet, $ ; Select the QUIET keyword for cgPS_Open. PS_SCALE_FACTOR=ps_scale_factor, $ ; Select the scale factor for PostScript output. PS_TT_FONT=ps_tt_font, $ ; Select the true-type font to use for PostScript output. NOEXECUTECOMMANDS=noExecuteCommands, $ ; Set if you don't want the window to execute commands. MULTI=multi, $ ; Change the !P.MULTI setting for the window. STORAGE=storage, $ ; A pointer location for storing any IDL variable, like a UVALUE. XOMARGIN=xomargin, $ ; Change the !X.OMargin setting for the window. YOMARGIN=yomargin, $ ; Change the !Y.OMargin setting for the window. UPDATE=update, $ ; Set if you want the commands to be updated after property change. WID=wid, $ ; The window index number. Used in draw widget notify realize event. _EXTRA=extra Compile_Opt idl2 ; Error handling. Catch, theError IF theError NE 0 THEN BEGIN Catch, /CANCEL void = cgErrorMsg() RETURN ENDIF IF N_Elements(adjustsize) NE 0 THEN self.adjustsize = Keyword_Set(adjustsize) IF N_Elements(background) NE 0 THEN BEGIN IF Ptr_Valid(self.background) $ THEN *self.background = background $ ELSE self.background = Ptr_New(background) ENDIF IF N_Elements(palette) NE 0 THEN BEGIN IF Size(palette, /N_DIMENSIONS) NE 2 THEN Message, 'Color palette is not a 3xN array.' dims = Size(palette, /DIMENSIONS) threeIndex = Where(dims EQ 3) IF ((threeIndex)[0] LT 0) THEN Message, 'Color palette is not a 3xN array.' IF threeIndex[0] EQ 0 THEN palette = Transpose(palette) *self.r = palette[*,0] *self.g = palette[*,1] *self.b = palette[*,2] ENDIF IF N_Elements(dimensions) NE 0 THEN BEGIN IF N_Elements(dimensions) EQ 1 THEN dimensions = [dimensions, dimensions] Widget_Control, self.drawID, DRAW_XSIZE=dimensions[0], DRAW_YSIZE=dimensions[1] ENDIF IF N_Elements(delay) NE 0 THEN self.delay = delay IF N_Elements(eraseit) NE 0 THEN self.eraseit = Keyword_Set(eraseit) IF N_Elements(noExecuteCommands) NE 0 THEN self.noexecutecommands = Keyword_Set(noExecuteCommands) IF N_Elements(multi) NE 0 THEN BEGIN IF (N_Elements(multi) EQ 1) && (multi EQ 0) THEN multi = IntArr(5) FOR j=0,N_Elements(multi)-1 DO self.pmulti[j] = multi[j] ENDIF IF N_Elements(xomargin) NE 0 THEN self.xomargin = xomargin IF N_Elements(yomargin) NE 0 THEN self.yomargin = yomargin IF N_Elements(im_transparent) NE 0 THEN self.im_transparent = im_transparent IF N_Elements(im_density) NE 0 THEN self.im_density = im_density IF N_Elements(im_resize) NE 0 THEN self.im_resize = im_resize IF N_Elements(im_options) NE 0 THEN self.im_options = im_options IF N_Elements(im_raster) NE 0 then self.im_raster = im_raster IF N_Elements(im_width) NE 0 then self.im_width = im_width IF N_Elements(pdf_unix_convert_cmd) NE 0 THEN self.pdf_unix_convert_cmd = pdf_unix_convert_cmd IF N_Elements(pdf_path) NE 0 THEN self.pdf_path = pdf_path IF N_Elements(ps_decomposed) NE 0 THEN self.ps_decomposed = ps_decomposed IF N_Elements(ps_delete) NE 0 THEN self.ps_delete = ps_delete IF N_Elements(ps_metric) NE 0 THEN self.ps_metric = ps_metric IF N_Elements(ps_encapsulated) NE 0 THEN self.ps_encapsulated = ps_encapsulated IF N_Elements(ps_charsize) NE 0 THEN self.ps_charsize = ps_charsize IF N_Elements(ps_font) NE 0 THEN self.ps_font = ps_font IF N_Elements(ps_quiet) NE 0 THEN self.ps_quiet = ps_quiet IF N_Elements(ps_scale_factor) NE 0 THEN self.ps_scale_factor = ps_scale_factor IF N_Elements(ps_tt_font) NE 0 THEN self.ps_tt_font = ps_tt_font IF N_Elements(storage) NE 0 THEN BEGIN IF Ptr_Valid(self.storage) THEN *self.storage = storage ELSE self.storage = Ptr_New(storage) ENDIF ; You may have gotten keywords you don't know what to deal with. Inform ; the user there. IF N_Elements(extra) NE 0 THEN BEGIN tags = Tag_Names(extra) FOR j=0,N_Elements(tags)-1 DO BEGIN Message, 'The following property could NOT be set in the SetProperty method: ' + tags[j], /Informational ENDFOR ENDIF ; Update now? IF Keyword_Set(update) THEN self -> ExecuteCommands ; Update the draw widget index number. Should only be called from the draw widget notify realize procedure. IF N_Elements(wid) NE 0 THEN self.wid = wid END ;---------------------------------------------------------------------------------------------------------------- ;+ ; This method saves the window object reference in a linked-list system variable. ;- PRO cgCmdWindow::StoreObjectReference ; Each instance of cgWindow will store evidence of its ; existance in a linked list. DefSysV, '!FSC_WINDOW_LIST', EXISTS=exists IF ~exists THEN BEGIN fsc_window_list = Obj_New("LinkedList") DefSysV, '!FSC_WINDOW_LIST', fsc_window_list fsc_window_list -> Add, {cgWINDOW_ID, self.tlb, self.wid, self.title, self} ENDIF ELSE BEGIN IF Obj_Valid(!FSC_WINDOW_LIST) THEN BEGIN !FSC_WINDOW_LIST -> Add, {cgWINDOW_ID, self.tlb, self.wid, self.title, self} ENDIF ELSE BEGIN !FSC_WINDOW_LIST = Obj_New('LinkedList') !FSC_WINDOW_LIST-> Add, {cgWINDOW_ID, self.tlb, self.wid, self.title, self} ENDELSE ENDELSE END ;+ ; The definition module for the cgCmdWindow object ; ; :Params: ; class: out, optional, type=struct ; The object class structure definition. Occasionally useful. ;- PRO cgCmdWindow__Define, class class = { cgCMDWINDOW, $ tlb: 0L, $ ; The identifier of the top-level base widget. cmds: Obj_New(), $ ; A linkedlist object containing the graphics commands. wid: 0L, $ ; The window index number of the graphics window. drawid: 0L, $ ; The identifier of the draw widget. destroyObjects: 0B, $ ; If set, destroy object parameters upon exit. event_handler: "", $ ; The name of an event handler that will receive draw widget events. storage: Ptr_New(), $ ; Holder for user information, like UVALUE. title: "", $ ; The "title" of the object when it is stored. createParent: 0B, $ ; Flag that indicates whether this object created its own parent widget. lastWriteFile: "", $ ; The name of the last file written. lastWriteDir: "", $ ; The name of the last directory written to. ; cgWindow parameters adjustsize: 0B, $ ; Adjust character size to display window. background: Ptr_New(), $ ; The background color. delay: 0.0, $ ; The command delay. eraseit: 0B, $ ; Do we need to erase the display. noExecuteCommands: 0B, $ ; Set to stop command execution (e.g.,for loading commands) pmulti: LonArr(5), $ ; Identical to !P.Multi. xomargin: FltArr(2), $ ; Identical to !X.OMargin yomargin: FltArr(2), $ ; Identical to !Y.OMargin waspect: 0.0, $ ; The aspect ratio of the window. r: Ptr_New(), $ ; The red color table vector. g: Ptr_New(), $ ; The green color table vector. b: Ptr_New(), $ ; The blue color table vector. ; Data coordinate fields. psysvar: !P, $ ; The !P system variable. xsysvar: !X, $ ; The !X system variable. ysysvar: !Y, $ ; The !Y system variable. zsysvar: !Z, $ ; The !Z system variable. msysvar: Ptr_New(), $ ; The !MAP system variable. ; PostScript options. ps_decomposed: 0L, $ ; Sets the PostScript color mode. ps_delete: 0L, $ ; Delete the PS file when making IM image file. ps_encapsulated: 0L, $ ; Encapsulated PostScript ps_metric: 0L, $ ; Metric measurements in PostScript. ps_charsize: 0.0, $ ; The character size to use for PostScript output. ps_font: 0, $ ; The PostScript font to use. ps_quiet: 0, $ ; Select the QUIET keyword for cgPS_Open. ps_scale_factor: 0, $ ; The PostScript scale factor. ps_tt_font: "", $ ; The name of a true-type font to use for PostScript output. ; PDF options. pdf_unix_convert_cmd: "", $ ; The name of an alternative UNIX command to convert PS to PDF. pdf_path: "", $ ; The name of the path to a Ghostscript conversion command. ; ImageMagick output parameters. im_transparent: 0B, $ ; Sets the "alpha" keyword on ImageMagick convert command. im_density: 0L, $ ; Sets the density parameter on ImageMagick convert command. im_resize: 0L, $ ; Sets the resize parameter on ImageMagick convert command. im_options: "", $ ; Sets extra ImageMagick options on the ImageMagick convert command. im_raster: 0L, $ ; Create raster files via ImageMagick im_width: 0L $ ; Sets the width of the final raster output with ImageMagick } END ;----------------------------------------------------------------------------------------------------------------