;+ ; NAME: ; CMPS_FORM ; ; PURPOSE: ; This function puts up a form the user can configure a PostScript ; device driver. The function result (if the user selects either the ; ACCEPT or CREATE FILE buttons) can be sent directly to the DEVICE ; procedure by means of its _Extra keyword. User's predefined ; configurations may be retrieved from a common block. ; ; AUTHOR: ; *********** CM 01 Feb 2000 VERSION ************* ; Craig B. Markwardt, NASA/GSFC Code 662, Greenbelt, MD 20770 ; craigm@lheamail.gsfc.nasa.gov ; ; Based almost entirely on, but a totally revamped version of, CMPS_FORM by ; FANNING SOFTWARE CONSULTING (David Fanning Ph.D.) http://www.dfanning.com ; ; MAJOR TOPICS: ; Device Drivers, Hardcopy Output, PostScript Output ; ; PROCEDURE: ; This is a pop-up form widget. It is a modal or blocking widget. ; Keywords appropriate for the PostScript DEVICE command are returned. ; ; Use your LEFT mouse button to move the "Plot Window" around the page. ; Use your RIGHT mouse button to draw your own "Plot Window" on the page. ; ; HELP: ; formInfo = CMPS_FORM(/Help) ; ; CALLING SEQUENCE: ; formInfo = CMPS_FORM(xoffset, yoffset, Cancel=cancelButton) ; ; OPTIONAL INPUTS: ; ; XOFFSET -- Optional xoffset of the top-level base of cmps_form. Default is ; to try to center the form on the display. ; ; YOFFSET -- Optional yoffset of the top-level base of cmps_form. Default is ; to try to center the form on the display. ; ; INPUT KEYWORD PARAMETERS: ; ; BITS_PER_PIXEL -- The initial configuration of the bits per pixel button. ; ; BLOCKING -- Set this keyword to make this a blocking widget under IDL 5.0. ; (All widget programs block under IDL 4.0.) ; ; COLOR -- The initial configuration of the color switch. ; ; DEFAULTS -- A stucture variable of the same type and structure as the ; RETURN VALUE of cmps_form. It will set initial conditions. This makes ; it possible to start cmps_form up again with the same values it had the ; last time it was called. For example: ; ; mysetup = cmps_form() ; newsetup = cmps_form(Defaults=mysetup) ; ; ENCAPSULATED -- The initial configuration of the encapsulated switch. ; ; FILENAME -- The initial filename to be used on the form. ; ; HELP -- Prints a helpful message in the output log. ; ; INCHES -- The initial configuration of the inches/cm switch. ; ; INITIALIZE -- If this keyword is set, the program immediately returns the ; "localdefaults" structure. This gives you the means to configue the ; PostScript device without interrupting the user. ; ; SELECT -- used only when INITIALIZE is set. Set SELECT to a ; string which identifies the predefined configuration to ; be returned by cmps_form when INITIALIZE is set. This is ; a convenient way to select a predefined config ; non-interactively. ; ; LANDSCAPE -- The initial configuration of the landscape/portrait switch. ; ; LOCALDEFAULTS -- A structure like the DEFAULTS structure. If specified, ; then it is added as a predefined configuration entry called "Local". ; See below for a further discussion of predefined configurations. ; ; PREDEFINED -- An alternate way to specify predefined ; configurations. Pass an array of structures to ; populate the "predefined" dropbox in the ; dialog. This array, if specified, overrides the the ; common block technique. ; ; XOFFSET -- The initial XOffSet of the PostScript window. ; ; YOFFSET -- The initial YOffSet of the PostScript window. ; ; XSIZE -- The initial XSize of the PostScript window. ; ; YSIZE -- The initial YSize of the PostScript window. ; ; ASPECT -- The aspect ratio of the window (Y/X). This keyword can ; substitute for one of XSIZE or YSIZE. ; ; PRESERVE_ASPECT -- Set this keyword if you want to hold the ; aspect ratio constant. ; ; PAPERSIZE -- If set, allows user to specify the size of the paper ; media to be printed on, as a scalar string. NOTE: ; this specification cannot be passed to DEVICE, but ; can be selected for completeness's sake. Default is ; 'Letter'. ; ; MARGINSIZE -- Size of the margins on all sides. Default is 0.25 inches. ; When MARGINSIZE is non-zero, a graphic cannot directly ; abut the edge of the page. This is normally a good thing, ; since there is often a non-printable region which borders ; the page. ; ; DEFAULTPAPER -- Default paper size to use, when it is unspecified ; in a predefined, "local", or "default" ; configuration. This value also overrides any ; configuration from common blocks. European users ; will probably set this to 'A4'. ; ; PARENT -- if this widget is invoked by another widget program, ; then this keyword parameter must be set to the top level ; widget which is to serve as the group leader. Failure ; to do so will result in unexpected behavior. IDL 4 ; programs do not need to pass this parameter. Default: ; NONE. ; ; OUTPUT KEYWORD PARAMETERS ; ; CANCEL -- This is an OUTPUT keyword. It is used to check if the user ; selected the "Cancel" button on the form. Check this variable rather ; than the return value of the function, since the return value is designed ; to be sent directly to the DEVICE procedure. The varible is set to 1 if ; the user selected the "Cancel" button. Otherwise, it is set to 0. ; ; CREATE -- This output keyword can be used to determine if the user ; selected the 'Create File' button rather than the 'Accept' button. ; The value is 1 if selected, and 0 otherwise. ; ; PAPERSIZE -- If set to a named variable, any newly selected paper ; size is returned in that variable. ; ; XPAGESIZE -- Size of paper in "X" dimension, in units given by ; the returned config structure. ; ; YPAGESIZE -- Size of paper in "Y" dimension, in units given by ; the returned config structure. ; ; PAGEBOX -- specifies the page rectangle relative to the plot ; window, in normalized units. A 4-vector of the form ; [XLL, YLL, XUR, YUR] is returned, giving the positions ; of the lower left (LL) and upper right (UR) corners of ; the page with respect to the plot window. Thus, the ; following command: ; ; PLOT, x, y, position=PAGEBOX ; ; will construct a graphic whose plot region exactly ; fills the page (with no margin around the edges). ; ; Naturally, the page is usually larger than the ; graphics window, so the normalized coordinates will ; usually fall outside the range [0,1]. ; ; However, the bounding box constructed by the ; Postscript driver includes only the graphics window. ; Anything drawn outside of it may be clipped or ; discarded. ; ; RETURN VALUE: ; ; formInfo = { cmps_form_INFO, $ ; xsize:0.0, $ ; The x size of the plot ; xoff:0.0, $ ; The x offset of the plot ; ysize:0.0, $ ; The y size of the plot ; yoff:0.0 $ ; The y offset of the plot ; filename:'', $ ; The name of the output file ; inches:0 $ ; Inches or centimeters? ; color:0, $ ; Color on or off? ; bits_per_pixel:0, $ ; How many bits per image pixel? ; encapsulated:0,$ ; Encapsulated or regular PostScript? ; isolatin1:0,$ ; Encoded with ISOLATIN1? ; landscape:0 } ; Landscape or portrait mode? ; ; USAGE: ; ; The calling procedure for this function in a widget program will ; look something like this: ; ; info.ps_config = cmps_form(/Initialize) ; ; formInfo = cmps_form(Cancel=canceled, Create=create, $ ; Defaults=info.ps_config) ; ; IF NOT canceled THEN BEGIN ; IF create THEN BEGIN ; thisDevice = !D.Name ; Set_Plot, "PS" ; Device, _Extra=formInfo ; ; Enter Your Graphics Commands Here! ; ; Device, /Close ; Set_Plot, thisDevice ; info.ps_config = formInfo ; ENDIF ELSE ; info.ps_config = formInfo ; ENDIF ; ; MAJOR FUNCTIONS and PROCEDURES: ; ; None. Designed to work originally in conjunction with XWindow, a ; resizable graphics window. [ NOTE: this modified version of ; cmps_form, by Craig Markwardt, is incompatible with the original ; version of XWINDOW. ] ; ; MODIFICATION HISTORY: ; ; Based on cmps_form of : David Fanning, RSI, March 1995. ; Major rewrite by: Craig Markwardt, October 1997. ; - Drawing and updating of form and sample box are now modular ; - Option of storing more than one predefined postscript configuration ; - Selection of paper size by name ; - Access to predfined configurations through (optional) common ; block ; Several additions, CM, April 1998 VERSION CM2.0 ; - better integration of paper sizes throughout program. ; Predefined configurations now also know about paper. ; - allow passing predefined configurations instead of using ; common block ; - addition of ISOLATIN selection, and streamlining of dialog ; appearance ; Fixed bug in INITIALIZE w.r.t. paper sizes, CM, Nov 1998 ; Added SELECT keyword, CM, 09 Dec 1998 ; Added Parent keyword to allow modal widgets in IDL 5, 19 Jan 1999 ; Added "Choose" button for filename selection, 19 Sep 1999 ; Added ability to program different button names, 19 Sep 1999 ; Added ASPECT and PRESERVE_ASPECT, based on work by Aaron Barth, 18 ; Oct 1999 ; Removed NOCOMMON documentation and logic, 19 Oct 1999, CM ; Added aspect to cmps_form_numevents (per Aaron Barth), 18 Oct 1999 ; Corrected small bug under Initialize keyword (inches), 18 Oct 1999 ; Made call to *_pscoord more consistent, 18 Oct 1999 ; Added XPAGESIZE, YPAGESIZE and PAGEBOX keywords, 19 Oct 1999 ; Small cosmetic cleanup, CM, 01 Feb 2000 ; ; COMMON BLOCKS: ; ; The user may store frequently used or helpful configurations in a ; common block, and cmps_form() will attempt to access them. This ; provides a way for the user to have persistent, named, ; configurations. ; ; NOTE: this format has changed since the last version. You may ; have to quit your IDL session for the changes to take effect ; properly. If you have place a predefined configuration in your ; startup file, you should review the new format. ; ; COMMON CMPS_FORM_CONFIGS, cmps_form_DEFAULT_PAPERSIZE, $ ; cmps_form_STDCONFIGS ; ; cmps_form_DEFAULT_PAPERSIZE - a string designating the default ; paper size, when none is given. ; The predefined configurations ; offerred by this program will ; respect the default value. (See ; also the DEFAULTPAPER keyword.) ; ; cmps_form_STDCONFIGS - An array of cmps_form_CONFIG structures, ; each containing information about one ; predefined configuration, such as its ; name and size of paper. Each "config" ; element is a cmps_form_INFO structure, ; which contains the actual postscript ; configuration. ; ; See the IDL source code cmps_form_LOAD_CONFIGS for an example of how ; to make a list of configurations. One possibility would be to ; declare and populate the common block from within the user's ; start-up script, allowing the same configurations to appear in ; every session. ; ; cmps_form() takes its initial list of configurations from this ; common block if it exists. A default list is provided ala the ; procedure cmps_form_LOAD_CONFIGS. Any modifications that take place ; during the cmps_form() widget session are not transferred back to ; the common block upon return. It might be useful to be able to do ; this, through some form of 'save' procedure. ; ; Also, if the PREDEFINED keyword is used, then the common block is ; not consulted. ; ;- ; *************************************************************** ; Utility routines forward_function filepath ; Convert from inches and centimeters to WIDGET_DRAW pixels pro cmps_form_Draw_Coords, drawpixperunit, xoff, yoff, xsize, ysize if n_elements(xoff) GT 0 then xoff = xoff * drawpixperunit + 1 if n_elements(yoff) GT 0 then yoff = yoff * drawpixperunit + 1 if n_elements(xsize) GT 0 then xsize = xsize * drawpixperunit if n_elements(ysize) GT 0 then ysize = ysize * drawpixperunit return end ; Perform the opposite conversion of cmps_form_DRAW_COORDS pro cmps_form_Real_Coords, drawpixperunit, xoff, yoff, xsize, ysize if n_elements(xoff) GT 0 then xoff = (xoff-1) / drawpixperunit if n_elements(yoff) GT 0 then yoff = (yoff-1) / drawpixperunit if n_elements(xsize) GT 0 then xsize = xsize / drawpixperunit if n_elements(ysize) GT 0 then ysize = ysize / drawpixperunit return end Pro cmps_form_Select_File, event ; Allows the user to select a filename for writing. Widget_Control, event.top, Get_UValue=info, /No_Copy ; Start with the name in the filename widget. Widget_Control, info.idfilename, Get_Value=initialFilename initialFilename = initialFilename(0) filename = Pickfile(/Write, File=initialFilename) IF filename NE '' THEN $ Widget_Control, info.idfilename, Set_Value=filename Widget_Control, event.top, Set_UValue=info, /No_Copy END ;******************************************************************* ; Calculate a list of vertices to be plotted as a box in the ; draw widget. Function cmps_form_PlotBox_Coords, xsize, ysize, xoff, yoff, drawpixperunit ; This function converts sizes and offsets to appropriate ; Device coordinates for drawing the PLOT BOX on the PostScript ; page. The return value is a [2,5] array. returnValue = IntArr(2,5) xs = xsize ys = ysize xof = xoff yof = yoff cmps_form_draw_coords, drawpixperunit, xof, yof, xs, ys ; Add one because we do for the page outline xcoords = Round([xof, xof+xs, xof+xs, xof, xof]) + 1 ycoords = Round([yof, yof, yof+ys, yof+ys, yof]) + 1 returnValue(0,*) = xcoords returnValue(1,*) = ycoords RETURN, returnValue END ;******************************************************************* ; Convert between the IDL-form of PS coordinates (including the ; strange definition of YOFFSET and XOFFSET) to a more ; "human-readable" form where the Xoffset and YOFFSET always refer to ; the lower-left hand corner of the output pro cmps_form_conv_pscoord, info, xpagesize, ypagesize, $ toidl=toidl, tohuman=tohuman if info.landscape EQ 1 then begin ixoff=info.xoff iyoff=info.yoff if keyword_set(tohuman) then begin info.yoff = ixoff info.xoff = xpagesize - iyoff endif else if keyword_set(toidl) then begin info.xoff = iyoff info.yoff = xpagesize - ixoff endif endif return end ; Return names of paper sizes function cmps_form_papernames return, ['Letter','Legal','Tabloid','Ledger','Executive','Monarch', $ 'Statement','Folio','Quarto','C5','B4','B5','Dl','A0','A1', $ 'A2','A3','A4','A5','A6'] end ; Select a paper size based on number or string. Returns x and ; y page sizes, accouting for the units of measurement and the ; orientation of the page. pro cmps_form_select_papersize, papertype, xpagesize, ypagesize, $ inches=inches, landscape=landscape, index=index ; Letter Legal Tabloid Ledger Executive Monarch Statement Folio xpaper = [612., 612, 792, 792, 540, 279, 396, 612, $ $; Quarto C5 B4 B5 Dl A0 A1 A2 A3 A4 A5 A6 610, 459,729,516,312,2380,1684,1190,842,595,420,297] ; Letter Legal Tabloid Ledger Executive Monarch Statement Folio ypaper = [792., 1008, 1224, 1224, 720, 540, 612, 936, $ $; Quarto C5 B4 B5 Dl A0 A1 A2 A3 A4 A5 A6 780, 649,1032,729,624,3368,2380,1684,1190,842,595,421] names = cmps_form_papernames() sz = size(papertype) tp = sz(sz(0) + 1) if tp GT 0 AND tp LT 6 then begin index = fix(papertype) endif else if tp EQ 7 then begin index = where(strupcase(papertype) EQ strupcase(names), ict) if ict EQ 0 then index = 0 endif else $ index = 0 index = index(0) xpagesize = xpaper(index) / 72. ; Convert to inches ypagesize = ypaper(index) / 72. xpagesize = xpagesize(0) ypagesize = ypagesize(0) if NOT keyword_set(inches) then begin xpagesize = xpagesize * 2.54 ypagesize = ypagesize * 2.54 endif if keyword_set(landscape) then begin temp = xpagesize xpagesize = ypagesize ypagesize = temp endif return end ; cmps_form_LOAD_CONFIGS ; ; Loads a set of default configurations into the output variables, ; ; CONFIGNAMES - array of names for configurations. ; ; CONFIGS - array of cmps_form_INFO structures, each with a separate ; configuration in it, and corresponding to the ; configuration name. ; ; Intended as an intelligent default when no other is specified. ; pro cmps_form_load_configs, defaultpaper, configs ; This is the default paper size, when none is given defaultpaper = 'Letter' ; Here is how the cmps_form_INFO structure is defined. Refer to it ; when creating new structures. template = { cmps_form_INFO, $ xsize:0.0, $ ; The x size of the plot xoff:0.0, $ ; The x offset of the plot ysize:0.0, $ ; The y size of the plot yoff:0.0, $ ; The y offset of the plot filename:'', $ ; The name of the output file inches:0, $ ; Inches or centimeters? color:0, $ ; Color on or off? bits_per_pixel:0, $ ; How many bits per image pixel? encapsulated:0,$ ; Encapsulated or regular PostScript? isolatin1:0,$ ; Encoding is not ISOLATIN1 landscape:0 } ; Landscape or portrait mode? pctemplate = { cmps_form_CONFIG, $ config:{cmps_form_INFO}, $ configname: '', $ ; Name of configuration papersize: '' } ; Size of paper for configuration ; Set of default configurations (no ISOLATIN1 encoding) ; 1. 7x5 inch color plot region in portrait ; 2. 7.5x10 inch centered color plot region, covering almost whole ; portrait page (0.5 inch margins) ; 3. 10x7.5 inch centered color plot region, covering almost whole ; landscape page (0.5 inch margins) ; 4. 7x5 inch gray plot region in portrait (IDL default config) configs = [{cmps_form_CONFIG, config:$ {cmps_form_INFO, 7.0, 0.75, 5.0, 5.0, 'idl.ps', 1, 1, 8, 0, 0, 0},$ configname:'Half Portrait (color)', papersize:defaultpaper}, $ {cmps_form_CONFIG, config:$ {cmps_form_INFO, 7.5, 0.50, 10., 0.5, 'idl.ps', 1, 1, 8, 0, 0, 0},$ configname:'Full Portrait (color)', papersize:defaultpaper}, $ {cmps_form_CONFIG, config:$ {cmps_form_INFO, 10., 0.50, 7.5, 10.5,'idl.ps', 1, 1, 8, 0, 0, 1},$ configname:'Full Landscape (color)', papersize:defaultpaper}, $ {cmps_form_CONFIG, config:$ {cmps_form_INFO, 18., 1.5, 26.7, 1.5, 'idl.ps', 0, 1, 8, 0, 0, 0},$ configname:'A4 Portrait (color)', papersize:'A4'}, $ {cmps_form_CONFIG, config:$ {cmps_form_INFO, 26.7, 1.5, 18.,28.2039,'idl.ps',0,1, 8, 0, 0, 1},$ configname:'A4 Landscape (color)', papersize:'A4'}, $ {cmps_form_CONFIG, config:$ {cmps_form_INFO, 17.78,1.91,12.70,12.70,'idl.ps',0,1, 4, 0, 0, 0},$ configname:'IDL Standard', papersize:defaultpaper} ] return end ; ; cmps_form_Update_Info ; ; This procedure modifies an "info" structure, according to new ; specifications about the PS configuration. This is the central ; clearing house for self-consistent modification of the info structure. ; ; INPUTS ; info - info structure to be modified ; keywords- IDL keywords are contain information is folded ; into the "info" structure. ; Valid keywords are: ; XSIZE, YSIZE, ; XOFF, YOFF - size and offset of plotting region in ; "human" coordinates. This is the ; natural size as measured from the ; lower-left corner of the page in its ; proper orientation (not the IDL ; definition!). These are the same ; values that are printed in the form's ; Size and Offset fields. ; INCHES - whether dimensions are in inches or ; centimeters (1=in, 0=cm) ; COLOR - whether output is color (1=y, 0=n) ; BITS_PER_PIXEL- number of bits per pixel (2,4,8) ; ENCAPSULATED - whether output is EPS (1=EPS, 0=PS) ; LANDSCAPE - whether output is portrait or ; landscape (1=land, 0=port) ; FILENAME - output file name (with respect to ; current directory) ; Pro cmps_form_Update_Info, info, set=set, _EXTRA=newdata if n_elements(newdata) GT 0 then $ names = Tag_Names(newdata) set = keyword_set(set) centerfactor = 1.0 FOR j=0, N_Elements(names)-1 DO BEGIN case strupcase(names(j)) of 'XSIZE': info.devconfig.xsize = float(newdata.xsize) 'YSIZE': info.devconfig.ysize = float(newdata.ysize) 'XOFF': info.devconfig.xoff = float(newdata.xoff) 'YOFF': info.devconfig.yoff = float(newdata.yoff) 'INCHES': BEGIN inches = fix(newdata.inches) if inches NE 0 then inches = 1 if set NE 1 then begin convfactor = 1.0 if info.devconfig.inches EQ 0 AND inches EQ 1 then $ convfactor = 1.0/2.54 $ ; centimeters to inches else if info.devconfig.inches EQ 1 AND inches EQ 0 then $ convfactor = 2.54 ; inches to centimeters info.devconfig.xsize = info.devconfig.xsize * convfactor info.devconfig.ysize = info.devconfig.ysize * convfactor info.devconfig.xoff = info.devconfig.xoff * convfactor info.devconfig.yoff = info.devconfig.yoff * convfactor info.xpagesize = info.xpagesize * convfactor info.ypagesize = info.ypagesize * convfactor info.marginsize = info.marginsize * convfactor info.drawpixperunit = info.drawpixperunit / convfactor endif info.devconfig.inches = inches end 'LANDSCAPE': begin landscape= fix(newdata.landscape) if landscape NE 0 then landscape = 1 if landscape NE info.devconfig.landscape AND $ set NE 1 then begin temp = info.xpagesize info.xpagesize = info.ypagesize info.ypagesize = temp ; Since the margins are bound to be way out of wack, ; we could recenter here. xsize = info.devconfig.xsize ysize = info.devconfig.ysize centerfactor = 2.0 ; We will have to redraw the reserve pixmap info.pixredraw = 1 endif info.devconfig.landscape = landscape end 'COLOR': begin info.devconfig.color = fix(newdata.color) if info.devconfig.color NE 0 then info.devconfig.color = 1 end 'ENCAPSULATED': begin info.devconfig.encapsulated = fix(newdata.encapsulated) if info.devconfig.encapsulated NE 0 then $ info.devconfig.encapsulated = 1 end 'ISOLATIN1': begin info.devconfig.isolatin1 = fix(newdata.isolatin1) if info.devconfig.isolatin1 NE 0 then $ info.devconfig.isolatin1 = 1 end 'BITS_PER_PIXEL': begin bpp = fix(newdata.bits_per_pixel) if bpp LT 1 then bpp = 2 if bpp GT 2 AND bpp LT 4 then bpp = 4 if bpp GT 4 AND bpp LT 8 then bpp = 8 if bpp GT 8 then bpp = 8 info.devconfig.bits_per_pixel = bpp end 'FILENAME': begin if string(newdata.filename) NE info.devconfig.filename then $ info.filechanged = 1 info.devconfig.filename = string(newdata.filename) end endcase endfor ; Now check the sizes and offsets, to be sure they are sane for the ; particular landscape/portrait and inch/cm settings that have been ; chosen. pgwid = info.xpagesize pglen = info.ypagesize pgmar = info.marginsize if set NE 1 then begin info.devconfig.xsize = (pgmar) > info.devconfig.xsize < (pgwid-2.*pgmar) info.devconfig.ysize = (pgmar) > info.devconfig.ysize < (pglen-2.*pgmar) info.devconfig.xoff = (pgmar) > info.devconfig.xoff < (pgwid-info.devconfig.xsize - pgmar) info.devconfig.yoff = (pgmar) > info.devconfig.yoff < (pglen-info.devconfig.ysize - pgmar) if info.devconfig.xsize + info.devconfig.xoff GT (pgwid-pgmar) then $ info.devconfig.xoff = (pgwid - info.devconfig.xsize) / centerfactor if info.devconfig.ysize + info.devconfig.yoff GT (pglen-pgmar) then $ info.devconfig.yoff = (pglen - info.devconfig.ysize) / centerfactor endif ; Preserve aspect ratio if necessary if (info.preserve_aspect EQ 1) then begin sizeratio = info.aspect / (info.ypagesize / info.xpagesize) if (sizeratio GE 1) then $ info.devconfig.xsize = info.devconfig.ysize / info.aspect $ else $ info.devconfig.ysize = info.devconfig.xsize * info.aspect endif return end ; ; PRO cmps_form_DRAW_BOX ; ; Draw the "sample" box in the draw widget. If necessary, also ; redraws the backing reserve pixmap. ; pro cmps_form_draw_box, xsize, ysize, xoff, yoff, info ; First order of business is to make a new reserve pixmap, if ; necessary. if info.pixredraw EQ 1 then begin ; Operate on the pixmap first wset, info.idpixwid erase ; Make background ... tv, replicate(info.bkgcolor, info.xpixwinsize, info.ypixwinsize) ; ... and page outline coords = cmps_form_plotbox_coords(info.xpagesize, info.ypagesize, $ 0.,0., info.drawpixperunit) plots, coords(0,*), coords(1,*), /device, color=info.pagecolor info.pixredraw = 0 endif ; Now, we transfer the reserve pixmap to the screen wset, info.idwid device, copy=[0, 0, info.xpixwinsize, info.ypixwinsize, 0, 0, $ info.idpixwid] ; Finally we overlay the plot region coords = cmps_form_plotbox_coords(xsize, ysize, xoff, yoff,info.drawpixperunit) plots, coords(0,*), coords(1,*), color=info.boxcolor, /device return end ; ; cmps_form_DRAW_FORM ; ; Update the widget elements of the cmps_form form, using the INFO structure. ; ; If the NOBOX keyword is set, then the draw widget is not updated. ; pro cmps_form_draw_form, info, nobox=nobox ; Draw the DRAW widget if needed if NOT keyword_set(nobox) then $ cmps_form_draw_box, info.devconfig.xsize, info.devconfig.ysize, $ info.devconfig.xoff, info.devconfig.yoff, info ; Update the numeric text fields xsizestr = strtrim(string(info.devconfig.xsize, format='(F6.2)'), 2) ysizestr = strtrim(string(info.devconfig.ysize, format='(F6.2)'), 2) xoffstr = strtrim(string(info.devconfig.xoff, format='(F6.2)'), 2) yoffstr = strtrim(string(info.devconfig.yoff, format='(F6.2)'), 2) widget_control, info.idxsize, set_value=xsizestr widget_control, info.idysize, set_value=ysizestr widget_control, info.idxoff, set_value=xoffstr widget_control, info.idyoff, set_value=yoffstr widget_control, info.idaspect, set_button=(info.preserve_aspect EQ 1) ; Set EPS (encapsulated ps) buttons Widget_Control, info.idencap, Set_Button=(info.devconfig.encapsulated EQ 1) ; Set color buttons. Widget_Control, info.idcolor, Set_Button=(info.devconfig.color EQ 1) ; Set inch/cm buttons. Widget_Control, info.idinch, Set_Button=(info.devconfig.inches EQ 1) Widget_Control, info.idcm, Set_Button=(info.devconfig.inches EQ 0) ; Set bits_per_pixel buttons. Widget_Control, info.idbit2, Set_Button=(info.devconfig.bits_per_pixel EQ 2) Widget_Control, info.idbit4, Set_Button=(info.devconfig.bits_per_pixel EQ 4) Widget_Control, info.idbit8, Set_Button=(info.devconfig.bits_per_pixel EQ 8) Widget_Control, info.idbitbase, Sensitive=(info.devconfig.color EQ 1) ; Set encoding button widget_control, info.idisolatin1, Set_Button=(info.devconfig.isolatin1 EQ 1) ; Set default filename. Widget_Control, info.idfilename, Get_Value=wfilename if string(wfilename(0)) NE info.devconfig.filename then begin Widget_Control, info.idfilename, Set_Value=info.devconfig.filename ; Put caret at end of pathname text so that filename itself is visible Widget_Control, info.idfilename, $ Set_Text_Select=[ strlen(info.devconfig.filename), 0 ] endif ; Set protrait/landscape button. Widget_Control, info.idland, Set_Button=(info.devconfig.landscape EQ 1) Widget_Control, info.idport, Set_Button=(info.devconfig.landscape EQ 0) ; Set Paper pn = cmps_form_papernames() xp = strtrim(string(info.xpagesize, format='(F10.2)'),2) yp = strtrim(string(info.ypagesize, format='(F10.2)'),2) un = 'in' if NOT info.devconfig.inches then un = 'cm' paperlab = string(pn(info.paperindex), xp, un, yp, un, $ format='(" Paper: ",A0," (",A0,A0," x ",A0,A0,") ")') Widget_Control, info.idpaperlabel, set_value=paperlab return end Pro cmps_form_Null_Events, event END ;******************************************************************* Function cmps_form_What_Button_Type, event ; Checks event.type to find out what kind of button ; was clicked in a draw widget. This is NOT an event handler. type = ['DOWN', 'UP', 'MOTION', 'SCROLL'] Return, type(event.type) END ;******************************************************************* Function cmps_form_What_Button_Pressed, event ; Checks event.press to find out what kind of button ; was pressed in a draw widget. This is NOT an event handler. button = ['NONE', 'LEFT', 'MIDDLE', 'NONE', 'RIGHT'] Return, button(event.press) END ;******************************************************************* Function cmps_form_What_Button_Released, event ; Checks event.release to find out what kind of button ; was released in a draw widget. This is NOT an event handler. button = ['NONE', 'LEFT', 'MIDDLE', 'NONE', 'RIGHT'] Return, button(event.release) END ;******************************************************************* ; ; cmps_form_NUMEVENTS ; ; Events sent to the numeric text field widgets are sent here. We ; harvest the data values from the text field and update the screen. ; Pro cmps_form_NumEvents, event ; If an event comes here, read the offsets and sizes from the ; form and draw the appropriately sized box in the draw widget. Widget_Control, event.top, Get_UValue= info, /No_Copy ; Get current values for offset and sizes Widget_Control, info.idxsize, Get_Value=xsize Widget_Control, info.idysize, Get_Value=ysize Widget_Control, info.idxoff, Get_Value=xoff Widget_Control, info.idyoff, Get_Value=yoff xsize = xsize(0) ysize = ysize(0) xoff = xoff(0) yoff = yoff(0) if info.preserve_aspect EQ 1 then begin if event.id EQ info.idysize then xsize = ysize / info.aspect $ else ysize = xsize * info.aspect endif ; Fold this information into the "info" structure cmps_form_update_info, info, xsize=xsize, ysize=ysize, xoff=xoff, yoff=yoff ; Update form and redraw sample box cmps_form_draw_form, info ; Put the info structure back into the top-level base Widget_Control, event.top, Set_UValue=info, /No_Copy END ;******************************************************************* Pro cmps_form_Move_Box, event ; This is the event handler that allows the user to "move" ; the plot box around in the page window. It will set the ; event handler back to "cmps_form_Box_Events" when it senses an ; "UP" draw button event and it will also turn cmps_form_Draw_Motion_Events ; OFF. ; Get the info structure out of the top-level base. Widget_Control, event.top, Get_UValue=info, /No_Copy whatButtonType = cmps_form_What_Button_Type(event) dpu = info.drawpixperunit ixmin = 0. iymin = 0. ixsize = info.devconfig.xsize iysize = info.devconfig.ysize cmps_form_draw_coords, dpu, ixmin, iymin, ixsize, iysize ; Now ixmin,iymin have the minimum values of x and y, in pixels ; ixsize and iysize are the size of the box, in pixels ixmax = info.xpagesize iymax = info.ypagesize cmps_form_draw_coords, dpu, ixmax, iymax ; ixmax and iymax are the max values of x and y, in pixels ; info.ideltx/y contains the offset of the lower left corner of the box, ; with respect to the mouse's position ixoff = event.x + info.ideltx iyoff = event.y + info.idelty ; Keep box inside the page if ixoff LT ixmin then ixoff = ixmin if iyoff LT iymin then iyoff = iymin if (ixoff+ixsize) GT ixmax then ixoff = ixmax - ixsize if (iyoff+iysize) GT iymax then iyoff = iymax - iysize IF whatButtonType EQ 'UP' THEN Begin ; When the button is "up" the moving event is over. We reset the ; event function and update the information about the box's position Widget_Control, info.iddraw, Draw_Motion_Events=0, $ ; Motion events off Event_Pro='cmps_form_Box_Events' ; Change to normal processing cmps_form_real_coords, dpu, ixoff, iyoff, ixsize, iysize ; Update the info structure cmps_form_update_info, info, xoff=ixoff, yoff=iyoff ; Draw it cmps_form_draw_form, info ; Put the info structure back in the top-level base and RETURN Widget_Control, event.top, Set_UValue=info, /No_Copy Return ENDIF ; You come to this section of the code for all events except ; an UP button event. Most of the action in this event handler ; occurs here. cmps_form_real_coords, dpu, ixoff, iyoff, ixsize, iysize ; Simply draw the new box cmps_form_draw_box, ixsize, iysize, ixoff, iyoff, info ; Put the info structure back into the top-level base. Widget_Control, event.top, Set_UValue=info, /No_Copy END ;******************************************************************* Pro cmps_form_Grow_Box, event ; This event handler is summoned when a RIGHT button is clicked ; in the draw widget. It allows the user to draw the outline of a ; box with the mouse. It will continue drawing the new box shape ; until an UP event is detected. Then it will set the event handler ; back to cmps_form_Box_Events and turn cmps_form_Draw_Motion_Events to OFF. ; Get the info structure out of the top-level base. Widget_Control, event.top, Get_UValue=info, /No_Copy whatButtonType = cmps_form_What_Button_Type(event) dpu = info.drawpixperunit ixmin = 0. iymin = 0. ixsize = info.devconfig.xsize iysize = info.devconfig.ysize cmps_form_draw_coords, dpu, ixmin, iymin, ixsize, iysize ; Now ixmin,iymin have the minimum values of x and y, in pixels ; ixsize and iysize are the size of the box, in pixels ixmax = info.xpagesize iymax = info.ypagesize cmps_form_draw_coords, dpu, ixmax, iymax ; ixmax and iymax are the max values of x and y, in pixels ; Keep box inside the page if event.x LT ixmin then event.x = ixmin if event.x GT ixmax then event.x = ixmax if event.y LT iymin then event.y = iymin if event.y GT iymax then event.y = iymax ; Decide on which corner is the lower left (it's arbitrary) ixoff = min([info.imousex, event.x]) iyoff = min([info.imousey, event.y]) ixsize = max([info.imousex, event.x]) - ixoff iysize = max([info.imousey, event.y]) - iyoff ;; Enforce the aspect ratio if info.preserve_aspect EQ 1 then begin sizeratio = info.aspect / (info.ypagesize / info.xpagesize) if (sizeratio GE 1) then ixsize = iysize / info.aspect $ else iysize = ixsize * info.aspect if info.imousex GT event.x then ixoff = info.imousex - ixsize if info.imousey GT event.y then iyoff = info.imousey - iysize endif IF whatButtonType EQ 'UP' THEN Begin ; When the button is "up" the moving event is over. We reset the ; event function and update the information about the box's position Widget_Control, info.iddraw, Draw_Motion_Events=0, $ ; Motion events off Event_Pro='cmps_form_Box_Events' ; Change to normal processing cmps_form_real_coords, dpu, ixoff, iyoff, ixsize, iysize ; Update the info structure cmps_form_update_info, info, xoff=ixoff, yoff=iyoff, $ xsize=ixsize, ysize=iysize ; Draw it cmps_form_draw_form, info ; Put the info structure back in the top-level base and RETURN Widget_Control, event.top, Set_UValue=info, /No_Copy Return ENDIF ; This is the portion of the code that handles all events except for ; UP button events. The bulk of the work is done here. Basically, ; you need to erase the old box and draw a new box at the new ; location. Just keep doing this until you get an UP event. cmps_form_real_coords, dpu, ixoff, iyoff, ixsize, iysize ; Simply draw the new box cmps_form_draw_box, ixsize, iysize, ixoff, iyoff, info ; Put the info structure back in the top-level base. Widget_Control, event.top, Set_UValue=info, /No_Copy END ;******************************************************************* ; ; Buttondown events sent to this procedure at first. This is sets up ; the initial move/drag elements and hands off the events to the more ; specialized procedures cmps_form_grow_box and cmps_form_move_box above. ; Pro cmps_form_Box_Events, event whatButtonType = cmps_form_What_Button_Type(event) IF whatButtonType NE 'DOWN' THEN Return ; Get info structure out of TLB Widget_Control, event.top, Get_UValue=info, /No_Copy whatButtonPressed = cmps_form_What_Button_Pressed(event) dpu = info.drawpixperunit ixmin = 0. iymin = 0. ixsize = info.devconfig.xsize iysize = info.devconfig.ysize cmps_form_draw_coords, dpu, ixmin, iymin, ixsize, iysize ixmax = info.xpagesize iymax = info.ypagesize cmps_form_draw_coords, dpu, ixmax, iymax ixoff = info.devconfig.xoff iyoff = info.devconfig.yoff cmps_form_draw_coords, dpu, ixoff, iyoff if event.x LT ixmin OR event.x GT ixmax $ OR event.y LT iymin OR event.y GT iymax then begin widget_control, event.top, set_uvalue=info, /no_copy return endif CASE whatButtonPressed OF 'RIGHT': Begin ; Resize the plot box interactively. Change the event handler ; to cmps_form_Grow_Box. All subsequent events will be handled by ; cmps_form_Grow_Box until an UP event is detected. Then you will ; return to this event handler. Also, turn motion events ON. Widget_Control, event.id, Event_Pro='cmps_form_Grow_Box', $ Draw_Motion_Events=1 cmps_form_draw_box, 1./dpu, 1./dpu, ixoff, iyoff, info info.imousex = event.x info.imousey = event.y End 'LEFT': Begin ; Resize the plot box interactively. Change the event handler ; to cmps_form_Move_Box. All subsequent events will be handled by ; cmps_form_Move_Box until an UP event is detected. Then you will ; return to this event handler. Also, turn motion events ON. ; Only move the box if the cursor is inside the box. ;If it is NOT, then RETURN. if event.x LT ixoff OR event.x GT (ixoff+ixsize) OR $ event.y LT iyoff OR event.y GT (iyoff+iysize) then begin Widget_Control, event.top, Set_UValue=info, /No_Copy Return ENDIF ; Relocate the event handler and turn motion events ON. Widget_Control, event.id, Event_Pro='cmps_form_Move_Box', $ Draw_Motion_Events=1 ; ideltx and idelty contain the offset of the lower left ; corner of the plot region with respect to the mouse. info.ideltx = ixoff - event.x info.idelty = iyoff - event.y End ELSE: ; Middle button ignored in this program ENDCASE ; Put the info structure back into the top-level base Widget_Control, event.top, Set_UValue=info, /No_Copy END ;******************************************************************* ; ; Handle events to the drop-list widgets, which contain predefined ; configurations. ; pro cmps_form_predef_events, event name = tag_names(event, /structure_name) if strupcase(name) NE 'WIDGET_DROPLIST' then return ; Get the info structure out of the top-level base Widget_Control, event.top, Get_UValue=info, /No_Copy Widget_Control, event.id, Get_UValue=thislist ; Pre-read the values from the text fields Widget_Control, info.idfilename, Get_Value=filename cmps_form_update_info, info, filename=filename case thislist of 'PAPER': info.paperindex = event.index ; Paper change 'PREDEF': begin old_filename = info.devconfig.filename ; Keep old filename info.devconfig = info.predefined(event.index) ; New config info.paperindex = info.papersizes(event.index) ; New paper too if info.filechanged then $ info.devconfig.filename = old_filename $ else begin cd, current=thisdir l = strlen(thisdir) if strmid(info.devconfig.filename, 0, l) NE thisdir then $ info.devconfig.filename = old_filename $ else $ info.devconfig.filename = filepath(info.devconfig.filename, $ root_dir=thisdir) endelse end endcase ; Be sure to select a pristine set of paper cmps_form_select_papersize, info.paperindex, xpagesize, ypagesize, $ landscape=info.devconfig.landscape, inches=info.devconfig.inches info.xpagesize = xpagesize info.ypagesize = ypagesize widget_control, info.idpaperlist, set_droplist_select=info.paperindex ; Reset the drawpixperunit value convfactor = 1.0 if info.devconfig.inches EQ 0 then convfactor = convfactor * 2.54 info.marginsize = 0.25 * convfactor ; The conversion between length and pixels cannot always be set precisely, ; depending on the size of the paper dpp = 10.0 / convfactor ; Desire 10 pixels per inch if dpp * info.xpagesize GT info.xpixwinsize OR $ dpp * info.ypagesize GT info.ypixwinsize then $ dpp = min( [ float(info.xpixwinsize-2)/info.xpagesize, $ float(info.ypixwinsize-2)/info.ypagesize ]) info.drawpixperunit = dpp info.pixredraw = 1 ; Update the info structure and draw it cmps_form_update_info, info, xoff=info.devconfig.xoff cmps_form_draw_form, info Widget_Control, event.top, Set_UValue=info, /No_Copy return end ; ; Handle events sent to any of the button elements of the form. ; Pro cmps_form_Event, event ; This is the main event handler for cmps_form. It handles ; the exclusive buttons on the form. Other events on the form ; will have their own event handlers. ; Get the name of the event structure name = Tag_Names(event, /Structure_Name) ; Get the User Value of the Button Widget_Control, event.id, Get_UValue=thisButton ; If name is NOT "WIDGET_BUTTON" or this is not a button ; selection event, RETURN. nonexclusive = ( thisButton EQ 'ISOLATIN1' OR $ thisButton EQ 'COLOR' OR $ thisButton EQ 'ENCAPSULATED' OR $ thisButton EQ 'ASPECT' ) IF name NE 'WIDGET_BUTTON' OR $ (NOT nonexclusive AND event.select NE 1) THEN Return ; Get the info structure out of the top-level base Widget_Control, event.top, Get_UValue=info, /No_Copy redraw_form = 0 redraw_box = 0 ; Pre-read the values from the text fields Widget_Control, info.idxsize, Get_Value=xsize Widget_Control, info.idysize, Get_Value=ysize Widget_Control, info.idxoff, Get_Value=xoff Widget_Control, info.idyoff, Get_Value=yoff Widget_Control, info.idfilename, Get_Value=filename cmps_form_update_info, info, filename=filename ; Respond appropriately to whatever button was selected CASE thisButton OF 'INCHES': Begin cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff cmps_form_update_info, info, inches=1 redraw_form = 1 end 'CENTIMETERS': Begin cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff cmps_form_update_info, info, inches=0 redraw_form = 1 End 'COLOR': Begin cmps_form_update_info, info, color=(1-info.devconfig.color) redraw_form = 1 End 'BITS2': Begin cmps_form_update_info, info, bits_per_pixel=2 redraw_form = 1 End 'BITS4': Begin cmps_form_update_info, info, bits_per_pixel=4 redraw_form = 1 End 'BITS8': Begin cmps_form_update_info, info, bits_per_pixel=8 redraw_form = 1 End 'ISOLATIN1': Begin cmps_form_update_info, info, isolatin1=(1-info.devconfig.isolatin1) End 'ASPECT': begin if info.preserve_aspect EQ 0 then $ info.aspect = info.devconfig.ysize / info.devconfig.xsize info.preserve_aspect = (1 - info.preserve_aspect) end 'LANDSCAPE': Begin cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff cmps_form_update_info, info, landscape=1 redraw_form = 1 redraw_box = 1 End 'PORTRAIT': Begin cmps_form_update_info, info, landscape=0 cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff redraw_form = 1 redraw_box = 1 End 'ENCAPSULATED': Begin cmps_form_update_info, info, encapsulated=(1-info.devconfig.encapsulated) End 'ACCEPT': Begin ; The user wants to accept the information in the form. ; The procedure is to gather all the information from the ; form and then fill out a formInfo structure variable ; with the information. The formInfo structure is stored ; in a pointer. The reason for this is that we want the ; information to exist even after the form is destroyed. ; Gather the information from the form Widget_Control, info.idfilename, Get_Value=filename cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff cmps_form_update_info, info, filename=filename widget_control, event.id, get_value=buttonname formInfo = { $ cancel:0, $ ; CANCEL flag create:0, $ ; CREATE flag buttonname: buttonname, $ xpagesize:info.xpagesize, $ ypagesize:info.ypagesize, $ paperindex:info.paperindex, $ result:info.devconfig $; Results are ready-made } goto, FINISH_DESTROY End 'CREATE': Begin Widget_Control, info.idfilename, Get_Value=filename cmps_form_update_info, info, xsize=xsize, ysize=ysize, $ xoff=xoff, yoff=yoff cmps_form_update_info, info, filename=filename formInfo = { $ cancel:0, $ ; CANCEL flag create:1, $ ; CREATE flag buttonname: 'Create File', $ xpagesize:info.xpagesize, $ ypagesize:info.ypagesize, $ paperindex:info.paperindex, $ result:info.devconfig $; Results are ready-made } goto, FINISH_DESTROY End 'CANCEL': Begin ; The user wants to cancel out of this form. We need a way to ; do that gracefully. Our method here is to set a "cancel" ; field in the formInfo structure. formInfo = {cancel:1, create:0} goto, FINISH_DESTROY End ENDCASE if redraw_form EQ 1 then $ cmps_form_draw_form, info, nobox=(1-redraw_box) ; Put the info structure back into the top-level base if the ; base is still in existence. If Widget_Info(event.top, /Valid) THEN $ Widget_Control, event.top, Set_UValue=info, /No_Copy return ; We only reach this stage if we are ending the cmps_form widget ; These commands store the results, restore colors, and destroy ; the form widget. FINISH_DESTROY: ; Put the formInfo structure into the location pointer ; to by the pointer Handle_Value, info.ptrresult, formInfo, /Set, /No_Copy ; Delete the pixmap window WDelete, info.idpixwid ; Restore the user's color table TVLct, info.red, info.green, info.blue ; Destroy the cmps_form widget program Widget_Control, event.top, /Destroy return END ;******************************************************************* Function cmps_form, xoffset, yoffset, Cancel=cancelButton, Help=help, $ XSize=xsize, YSize=ysize, XOffset=xoff, YOffset=yoff, $ Inches=inches, Color=color, Bits_Per_Pixel=bits_per_pixel, $ Encapsulated=encapsulated, Landscape=landscape, Filename=filename, $ Defaults=defaults, LocalDefaults=localDefaults, Initialize=initialize, $ select=select, parent=parent, $ Create=createButton, NoCommon=nocommon, PaperSize=paperSize, $ button_names=buttons, button_sel=button_sel, $ PreDefined=predefined, DefaultPaper=defaultpaper, $ aspect=aspect, preserve_aspect=preserve_aspect, $ xpagesize=xpagesize, ypagesize=ypagesize, pagebox=pagebox ; If the Help keyword is set, print some help information and return IF Keyword_Set(help) THEN BEGIN Doc_Library, 'cmps_form' RETURN, 0 ENDIF ; Load default setups via a common block, if they are available if n_elements(predefined) EQ 0 then begin common cmps_form_configs, cmps_form_default_papersize, $ cmps_form_stdconfigs if n_elements(cmps_form_stdconfigs) GT 0 then $ predefined = cmps_form_stdconfigs endif ; If the user has not set up a common block, then get some pre if n_elements(predefined) EQ 0 then $ cmps_form_load_configs, cmps_form_default_papersize, predefined ; Transfer to local copies so that we don't overwrite confignames = predefined(*).configname configs = predefined(*).config papernames = predefined(*).papersize if n_elements(defaultpaper) EQ 0 $ AND n_elements(cmps_form_default_papersize) GT 0 then $ defaultpaper = cmps_form_default_papersize if n_elements(defaultpaper) EQ 0 then $ defaultpaper = 'Letter' papersizes = intarr(n_elements(papernames)) ; If localdefaults exist, then enter them into a new first entry of ; the configuration list if n_elements(localDefaults) NE 0 then begin configs = [ configs(0), configs ] confignames = [ 'Local', confignames ] papernames = [defaultpaper, papernames ] papersizes = [ 0, papersizes ] names = Tag_Names(localdefaults) for j=0, n_elements(names)-1 do $ dummy = execute('configs(0).' +names(j)+ ' = localdefaults.' +names(j)) endif ; Generate a new entry at the beginning, which will be the initial, ; default configuration. configs = [ configs(0), configs ] confignames = [ 'Default', confignames ] papernames = [defaultpaper, papernames ] papersizes = [ 0, papersizes ] filechanged = 0 defaultset = 0 if n_elements(defaults) NE 0 then begin defaultset = 1 names = Tag_Names(defaults) for j=0, n_elements(names)-1 do begin dummy = execute('configs(0).' +names(j)+ ' = defaults.' +names(j)) if strupcase(names(j)) EQ 'FILENAME' then filechanged = 1 endfor endif ; Next, enter in the keyword defaults IF NOT defaultset OR N_ELEMENTS(inches) GT 0 then begin if n_elements(inches) EQ 0 then inches = 1 configs(0).inches = keyword_set(inches) endif IF NOT defaultset OR n_elements(landscape) GT 0 then $ configs(0).landscape = keyword_set(landscape) if NOT defaultset OR n_elements(color) GT 0 then $ configs(0).color = keyword_set(color) if NOT defaultset OR n_elements(encapsulated) GT 0 then $ configs(0).encapsulated = keyword_set(encapsulated) if NOT defaultset OR n_elements(bits_per_pixel) GT 0 then begin if n_elements(bits_per_pixel) EQ 0 then bpp = 8 else bpp = bits_per_pixel if bpp LT 1 then bpp = 2 if bpp GT 2 AND bpp LT 4 then bpp = 4 if bpp GT 4 AND bpp LT 8 then bpp = 8 if bpp GT 8 then bpp = 8 configs(0).bits_per_pixel = bpp endif IF N_ELements(filename) EQ 0 THEN BEGIN if NOT filechanged then begin CD, Current=thisDir filename = Filepath('idl.ps', Root_Dir=thisDir) filechanged = 0 configs(0).filename = filename endif ENDIF else begin configs(0).filename = filename filechanged = 1 endelse ; Get the size of the page, based on the papersize keyword if n_elements(paperSize) GT 1 then begin xpagesize = float(paperSize(0)) ypagesize = float(paperSize(1)) pind = 0 endif else begin if n_elements(paperSize) EQ 0 then papersize = defaultpaper cmps_form_select_papersize, papersize, xpagesize, ypagesize, $ landscape=configs(0).landscape, inches=configs(0).inches, index=pind endelse convfactor = 1.0 if configs(0).inches EQ 0 then convfactor = convfactor * 2.54 defmarginsize = 1.50 * convfactor ; 1 1/2 inch margins default if N_Elements(marginsize) EQ 0 then $ marginsize = 0.25 * convfactor ; 1/4 inch margins "minimum" ; "Unconvert" the configuration xoff, yoff, etc. into human-readable format, ; which is also the format of the keywords xoff and yoff passed to cmps_form() nconfigs = n_elements(configs) for j = 0, nconfigs-1 do begin cmps_form_select_papersize, papernames(j), tmpxpg, tmpypg, $ landscape=configs(j).landscape, inches=configs(j).inches, $ index=pind papersizes(j) = pind tmpc = configs(j) cmps_form_conv_pscoord, tmpc, tmpxpg, tmpypg, /tohuman configs(j) = tmpc endfor if n_elements(aspect) GT 0 then aspect = aspect(0) > .001 if n_elements(ysize) GT 0 then ysize = ysize(0) if n_elements(xsize) GT 0 then xsize = xsize(0) if n_elements(xsize) GT 0 AND n_elements(ysize) GT 0 then $ aspect = ysize / (xsize > (ysize*0.001)) $ else if n_elements(xsize) GT 0 AND n_elements(aspect) GT 0 then $ ysize = xsize * aspect $ else if n_elements(ysize) GT 0 AND n_elements(aspect) GT 0 then $ xsize = ysize / aspect ; Compute an intelligent default X and Y size, if they aren't given pageaspect = xpagesize / ypagesize if NOT defaultset then begin if n_elements(xsize) EQ 0 AND n_elements(ysize) EQ 0 then begin if n_elements(aspect) EQ 0 then begin IF !D.Window NE -1 THEN $ aspect = Float(!D.X_VSize) / !D.Y_VSize $ ELSE $ aspect = 1.0 endif if aspect GT 1.0 then BEGIN configs(0).xsize = xpagesize-2.0*marginsize configs(0).ysize = configs(0).xsize / aspect endif else begin configs(0).ysize = ypagesize-2.0*marginsize configs(0).xsize = configs(0).ysize * aspect endelse endif if n_elements(xsize) EQ 0 then $ configs(0).xsize = 7.0 * convfactor if n_elements(ysize) EQ 0 then $ configs(0).ysize = 5.0 * convfactor if n_elements(xoff) EQ 0 then $ configs(0).xoff = (xpagesize-configs(0).xsize) / 2.0 if n_elements(yoff) EQ 0 then $ configs(0).yoff = (ypagesize-configs(0).ysize) / 2.0 configs(0).xsize = marginsize>configs(0).xsize<(xpagesize-2.*marginsize) configs(0).ysize = marginsize>configs(0).ysize<(ypagesize-2.*marginsize) configs(0).xoff = marginsize>configs(0).xoff <(xpagesize-configs(0).xsize) configs(0).yoff = marginsize>configs(0).yoff <(ypagesize-configs(0).ysize) endif if keyword_set(preserve_aspect) then begin if n_elements(xsize) EQ 0 then xsize = configs(0).xsize if n_elements(ysize) EQ 0 then ysize = configs(0).ysize aspect = ysize / (xsize > (ysize*0.001)) endif if n_elements(xsize) GT 0 then configs(0).xsize = xsize if n_elements(ysize) GT 0 then configs(0).ysize = ysize if n_elements(xoff) GT 0 then configs(0).xoff = xoff if n_elements(yoff) GT 0 then configs(0).yoff = yoff if n_elements(aspect) EQ 0 then aspect = configs(0).ysize / configs(0).xsize ; Return the initialized information, if that's all they were asking ; for. Must convert back to "IDL" coordinates. IF Keyword_Set(initialize) THEN BEGIN sel = 0 if n_elements(select) GT 0 then begin selen = strlen(select) wh = where(strupcase(strmid(confignames,0,selen)) EQ $ strupcase(select), ct) if ct GT 0 then sel = wh(0) endif cmps_form_select_papersize, papernames(sel), tmpxpg, tmpypg, $ landscape=configs(sel).landscape, inches=configs(sel).inches tmpc = configs(sel) xpagesize = tmpxpg & ypagesize = tmpypg pagebox = [(0-tmpc.xoff)/tmpc.xsize, $ (0-tmpc.yoff)/tmpc.ysize, $ (xpagesize-tmpc.xoff)/tmpc.xsize, $ (ypagesize-tmpc.yoff)/tmpc.ysize ] cmps_form_conv_pscoord, tmpc, tmpxpg, tmpypg, /toidl return, tmpc endif ; This program cannot work if the graphics device is already set ; to PostScript. So if it is, set it to the native OS graphics device. ; Remember to set it back later. IF !D.Name EQ 'PS' THEN BEGIN oldName = 'PS' thisDevice = Byte(!Version.OS) thisDevice = StrUpCase( thisDevice(0:2) ) IF thisDevice EQ 'MAC' OR thisDevice EQ 'WIN' THEN Set_Plot, thisDevice $ ELSE Set_Plot, 'X' ENDIF ELSE oldName = !D.Name ; Check for optional offset parameters and give defaults if not passed Device, Get_Screen_Size=screenSize IF N_Elements(xoffset) EQ 0 THEN xoffset = (screenSize(0) - 600) / 2. IF N_Elements(yoffset) EQ 0 THEN yoffset = (screenSize(1) - 400) / 2. ; The draw widget will have the following dimensions xpixwinsize = 174 ypixwinsize = 174 ; Hopefully will fit 11" x 17" sized paper ; The conversion between length and pixels cannot always be set precisely, ; depending on the size of the paper dpp = 10.0 / convfactor ; Desire 10 pixels per inch if dpp * xpagesize GT xpixwinsize OR dpp * ypagesize GT ypixwinsize then $ dpp = min( [ float(xpixwinsize-2)/xpagesize, $ float(ypixwinsize-2)/ypagesize ]) ; Start building the widgets thisRelease = StrMid(!Version.Release, 0, 1) if thisRelease EQ '5' AND n_elements(parent) GT 0 THEN $ extra_modal = {Modal:1, Group_Leader:parent(0) } tlb0 = Widget_Base(Title='Configure PostScript Parameters', Column=1, $ XOffset=xoffset, YOffset=yoffset, TLB_Frame_Attr=9, $ _EXTRA=extra_modal) ; Sub-bases for layout tlb = Widget_Base(tlb0, Column=1, Align_Center=1, frame=1) sizebase = Widget_Base(tlb, Row=1, Align_Center=1) numbase = Widget_Base(sizebase, Column=1) numsub1 = Widget_Base(numbase, Row=1) junk = Widget_Label(numsub1, Value=' Units: ') junksub = Widget_Base(numsub1, Row=1, /Exclusive) inch = Widget_Button(junksub, Value='Inches', UValue='INCHES') cm = Widget_Button(junksub, Value='Centimeters', $ UValue='CENTIMETERS') numsub2 = Widget_Base(numbase, Row=1, Event_Pro='cmps_form_NumEvents') xbase = Widget_Base(numsub2, Column=1, Base_Align_Right=1) x1base = Widget_Base(xbase, Row=1) junk = Widget_Label(x1base, Value='XSize: ') xsizew = Widget_Text(x1base, Scr_XSize=60, /Editable, $ Value='') x2base = Widget_Base(xbase, Row=1) junk = Widget_Label(x2base, Value='XOffset: ') xoffw = Widget_Text(x2base, Scr_XSize=60, /Editable, $ Value='') ybase = Widget_Base(numsub2, Column=1, Base_Align_Right=1) y1base = Widget_Base(ybase, Row=1) junk = Widget_Label(y1base, Value='YSize: ') ysizew = Widget_Text(y1base, Scr_XSize=60, /Editable, $ Value='') y2base = Widget_Base(ybase, Row=1) junk = Widget_Label(y2base, Value='YOffset: ') yoffw = Widget_Text(y2base, Scr_XSize=60, /Editable, $ Value='') paperw = Widget_Label(numbase, $ Value=' ' ) dummy = widget_base(numbase, column=1, /nonexclusive) aspectw = widget_button(dummy, value='Preserve Aspect', uvalue='ASPECT') drawbase = Widget_Base(sizebase, Row=1, frame=1) draw = Widget_Draw(drawbase, XSize=xpixwinsize, YSize=ypixwinsize, $ Event_Pro='cmps_form_Box_Events', Button_Events=1) opttlb = Widget_Base(tlb, Row=1, align_center=1, xpad=20) orientbase = Widget_Base(opttlb, Column=1, base_align_center=1) junk = Widget_Label(orientbase, Value='Orientation: ') junkbase = Widget_Base(orientbase, Column=1, /Frame, /Exclusive) land = Widget_Button(junkbase, Value='Landscape', UValue='LANDSCAPE') port = Widget_Button(junkbase, Value='Portrait', UValue='PORTRAIT') optbase = Widget_Base(opttlb, Column=1, /NonExclusive, frame=1) colorbut = widget_button(optbase, Value='Color Output', $ uvalue='COLOR') encap = Widget_Button(optbase, Value='Encapsulated (EPS)', $ uvalue='ENCAPSULATED') isolatin1 = widget_button(optbase, Value='ISOLatin1 Encoding', $ UValue='ISOLATIN1') ; bitslabel = Widget_Label(opttlb, Value=' Color Bits:') bitsw = Widget_Base(opttlb, Column=1, /Exclusive, /frame) bit2 = Widget_Button(bitsw, Value='2 Bit Color', UValue='BITS2') bit4 = Widget_Button(bitsw, Value='4 Bit Color', UValue='BITS4') bit8 = Widget_Button(bitsw, Value='8 Bit Color', UValue='BITS8') filenamebase = Widget_Base(tlb, Column=1, Align_Center=1) fbase = Widget_Base(filenamebase, Row=1) textlabel = Widget_Label(fbase, Value='Filename: ') ; Set up text widget with an event handler that ignores any event. filenamew = Widget_Text(fbase, /Editable, Scr_XSize=300, $ Value='', Event_Pro='cmps_form_Null_Events') filenameb = widget_button(fbase, value='Choose...', $ event_pro='cmps_form_select_file') ; This is a base for selection of predefined configurations and paper sizes predefbase = Widget_Base(tlb0, row=1, /align_center, frame=1) junk = widget_label(predefbase, value='Predefined:') predlist = widget_droplist(predefbase, value=confignames, $ event_pro='cmps_form_predef_events', UValue='PREDEF') junk = widget_label(predefbase, value=' Paper Sizes:') paplist = widget_droplist(predefbase, value=cmps_form_papernames(),$ event_pro='cmps_form_predef_events', UValue='PAPER') actionbuttonbase = Widget_Base(tlb0, Row=1, /Align_Center) cancel = Widget_Button(actionbuttonbase, Value='Cancel', UValue='CANCEL') if n_elements(buttons) GT 0 then begin for i = 0, n_elements(buttons)-1 do begin but = widget_button(actionbuttonbase, value=buttons(i), $ uvalue='ACCEPT') endfor endif else begin create = Widget_Button(actionbuttonbase, Value='Create File', $ UValue='CREATE') accept = Widget_Button(actionbuttonbase, Value='Accept', $ UValue='ACCEPT') endelse ; Modify the color table ; Get the colors in the current color table TVLct, r, g, b, /Get ; Modify color indices N_Colors-2, N_Colors-3 and N_Colors-4 for ; drawing colors ; The number of colors in the session can be less then the ; number of colors in the color vectors on PCs (and maybe other ; computers), so take the smaller value. (Bug fix?) ncol = !D.N_Colors < N_Elements(r) red = r green = g blue=b red(ncol-4:ncol-2) = [70B, 0B, 255B] green(ncol-4:ncol-2) = [70B, 255B, 255B] blue(ncol-4:ncol-2) = [70B, 0B, 0B] ; Load the newly modified colortable TVLct, red, green, blue ; Create a reserve pixmap for keeping backing store owin = !d.window Window, /Free, XSize=xpixwinsize, YSize=ypixwinsize, /Pixmap pixwid = !D.Window ; Create a handle. This will hold the result after the widget finishes ptr = Handle_Create() info = { $ devconfig: configs(0), $ iddraw: draw, $ idpixwid: pixwid, $ idwid: pixwid, $ idtlb: tlb0, $ idxsize: xsizew, $ idysize: ysizew, $ idxoff: xoffw, $ idyoff: yoffw, $ idfilename: filenamew, $ idinch: inch, $ idcm: cm, $ idcolor: colorbut, $ idbitbase: bitsw, $ idbit2: bit2, $ idbit4: bit4, $ idbit8: bit8, $ idisolatin1: isolatin1, $ idencap: encap, $ idland: land, $ idport: port, $ idpaperlabel: paperw, $ idaspect: aspectw, $ idpaperlist: paplist, $ xpagesize: xpagesize, $ ypagesize: ypagesize, $ paperindex: pind, $ marginsize: marginsize, $ xpixwinsize: xpixwinsize, $ ypixwinsize: ypixwinsize, $ drawpixperunit: dpp, $ filechanged: filechanged, $ pixredraw: 1, $ imousex: 0.0, $ imousey: 0.0, $ ideltx: 0.0, $ idelty: 0.0, $ pagecolor: ncol-2, $ boxcolor: ncol-3, $ bkgcolor: ncol-4, $ red: r, $ green: g, $ blue: b, $ ptrresult: ptr, $ predefined: configs, $ papersizes: papersizes, $ defaultpaper: defaultpaper, $ aspect: aspect, $ preserve_aspect: keyword_set(preserve_aspect) $ } cmps_form_draw_form, info, /nobox Widget_Control, tlb0, /Realize Widget_Control, draw, Get_Value=wid info.idwid = wid ;; Make sure the current info is consistent cmps_form_update_info, info ; Draw the remaining widgets widget_control, paplist, Set_DropList_Select=pind cmps_form_draw_form, info ; Store the info structure in the top-level base Widget_Control, tlb0, Set_UValue=info, /No_Copy ; Set this widget program up as a modal or blocking widget. What this means ; is that you will return to the line after this XManager call when the ; widget is destroyed. thisRelease = StrMid(!Version.Release, 0, 1) if thisRelease EQ '4' then $ xmanager_modal = {Modal:1} XManager, 'cmps_form', tlb0, _extra=xmanager_modal ; Get the formInfo structure from the pointer location. Handle_Value, ptr, formInfo, /No_Copy ; Make sure the user didn't click a close button. IF N_Elements(formInfo) EQ 0 THEN Begin Handle_Free, ptr RETURN, 0 EndIF ; Strip the CANCEL field out of the formInfo structure so the ; cancelButton flag can be returned via the CANCEL keyword and the ; formInfo structure is suitable for passing directly to the DEVICE ; procedure through its _Extra keyword. cancelButton = formInfo.cancel createButton = formInfo.create IF NOT cancelButton THEN begin xpagesize = formInfo.xpagesize ypagesize = formInfo.ypagesize paperindex = formInfo.paperindex if n_elements(buttons) GT 0 then $ button_sel = forminfo.buttonname formInfo = formInfo.result papersize = cmps_form_papernames() papersize = papersize(paperindex) pagebox = [(0-formInfo.xoff)/formInfo.xsize, $ (0-formInfo.yoff)/formInfo.ysize, $ (xpagesize-formInfo.xoff)/formInfo.xsize, $ (ypagesize-formInfo.yoff)/formInfo.ysize ] cmps_form_conv_pscoord, formInfo, xpagesize, ypagesize, /toidl endif else $ formInfo = 0 ; Free up the space allocated to the pointers and the data Handle_Free, ptr if owin GE 0 then wset, owin Set_Plot, oldname RETURN, formInfo END ;*******************************************************************