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Diffstat (limited to 'ruby_1_9_3/ext/tk/sample/figmemo_sample.rb')
| -rw-r--r-- | ruby_1_9_3/ext/tk/sample/figmemo_sample.rb | 456 |
1 files changed, 0 insertions, 456 deletions
diff --git a/ruby_1_9_3/ext/tk/sample/figmemo_sample.rb b/ruby_1_9_3/ext/tk/sample/figmemo_sample.rb deleted file mode 100644 index 25ec618fe8..0000000000 --- a/ruby_1_9_3/ext/tk/sample/figmemo_sample.rb +++ /dev/null @@ -1,456 +0,0 @@ -#!/usr/bin/env ruby -require 'tk' - -begin - # try to use Img extension - require 'tkextlib/tkimg' -rescue Exception - # cannot use Img extention --> ignore -end - - -############################ -# scrolled_canvas -class TkScrolledCanvas < TkCanvas - include TkComposite - - def initialize_composite(keys={}) - @h_scr = TkScrollbar.new(@frame) - @v_scr = TkScrollbar.new(@frame) - - @canvas = TkCanvas.new(@frame) - @path = @canvas.path - - @canvas.xscrollbar(@h_scr) - @canvas.yscrollbar(@v_scr) - - TkGrid.rowconfigure(@frame, 0, :weight=>1, :minsize=>0) - TkGrid.columnconfigure(@frame, 0, :weight=>1, :minsize=>0) - - @canvas.grid(:row=>0, :column=>0, :sticky=>'news') - @h_scr.grid(:row=>1, :column=>0, :sticky=>'ew') - @v_scr.grid(:row=>0, :column=>1, :sticky=>'ns') - - delegate('DEFAULT', @canvas) - delegate('background', @canvas, @h_scr, @v_scr) - delegate('activebackground', @h_scr, @v_scr) - delegate('troughcolor', @h_scr, @v_scr) - delegate('repeatdelay', @h_scr, @v_scr) - delegate('repeatinterval', @h_scr, @v_scr) - delegate('borderwidth', @frame) - delegate('relief', @frame) - - delegate_alias('canvasborderwidth', 'borderwidth', @canvas) - delegate_alias('canvasrelief', 'relief', @canvas) - - delegate_alias('scrollbarborderwidth', 'borderwidth', @h_scr, @v_scr) - delegate_alias('scrollbarrelief', 'relief', @h_scr, @v_scr) - - configure(keys) unless keys.empty? - end -end - -############################ -class PhotoCanvas < TkScrolledCanvas - -USAGE = <<EOT ---- WHAT IS --- -You can write comments on the loaded image, and save it as a Postscipt -file (original image file is not modified). Each comment is drawn as a -set of an indicator circle, an arrow, and a memo text. See the following -how to write comments. -This can save the list of memo texts to another file. It may useful to -search the saved Postscript file by the comments on them. -This may not support multibyte characters (multibyte texts are broken on -a Postscript file). It depends on features of canvas widgets of Tcl/Tk -libraries linked your Ruby/Tk. If you use Tcl/Tk8.0-jp (Japanized Tcl/Tk), -you can (possibly) get a Japanese Postscript file. - ---- BINDINGS --- -* Button-1 : draw comments by following steps - 1st - Set center of a indicator circle. - 2nd - Set head position of an arrow. - 3rd - Set tail position of an arrow, and show an entry box. - Input a memo text and hit 'Enter' key to entry the comment. - -* Button-2-drag : scroll the canvas - -* Button-3 : when drawing, cancel current drawing - -* Double-Button-3 : delete the clicked comment (text, arrow, and circle) -EOT - - def initialize(*args) - super(*args) - - self.highlightthickness = 0 - self.selectborderwidth = 0 - - @photo = TkPhotoImage.new - @img = TkcImage.new(self, 0, 0, :image=>@photo) - - width = self.width - height = self.height - @scr_region = [-width, -height, width, height] - self.scrollregion(@scr_region) - self.xview_moveto(0.25) - self.yview_moveto(0.25) - - @col = 'red' - @font = 'Helvetica -12' - - @memo_id_num = -1 - @memo_id_head = 'memo_' - @memo_id_tag = nil - @overlap_d = 2 - - @state = TkVariable.new - @border = 2 - @selectborder = 1 - @delta = @border + @selectborder - @entry = TkEntry.new(self, :relief=>:ridge, :borderwidth=>@border, - :selectborderwidth=>@selectborder, - :highlightthickness=>0) - @entry.bind('Return'){@state.value = 0} - - @mode = old_mode = 0 - - _state0() - - bind('2', :x, :y){|x,y| scan_mark(x,y)} - bind('B2-Motion', :x, :y){|x,y| scan_dragto(x,y)} - - bind('3'){ - next if (old_mode = @mode) == 0 - @items.each{|item| item.delete } - _state0() - } - - bind('Double-3', :widget, :x, :y){|w, x, y| - next if old_mode != 0 - x = w.canvasx(x) - y = w.canvasy(y) - tag = nil - w.find_overlapping(x - @overlap_d, y - @overlap_d, - x + @overlap_d, y + @overlap_d).find{|item| - ! (item.tags.find{|name| - if name =~ /^(#{@memo_id_head}\d+)$/ - tag = $1 - end - }.empty?) - } - w.delete(tag) if tag - } - end - - #----------------------------------- - private - def _state0() # init - @mode = 0 - - @memo_id_num += 1 - @memo_id_tag = @memo_id_head + @memo_id_num.to_s - - @target = nil - @items = [] - @mark = [0, 0] - bind_remove('Motion') - bind('ButtonRelease-1', proc{|x,y| _state1(x,y)}, '%x', '%y') - end - - def _state1(x,y) # set center - @mode = 1 - - @target = TkcOval.new(self, - [canvasx(x), canvasy(y)], [canvasx(x), canvasy(y)], - :outline=>@col, :width=>3, :tags=>[@memo_id_tag]) - @items << @target - @mark = [x,y] - - bind('Motion', proc{|x,y| _state2(x,y)}, '%x', '%y') - bind('ButtonRelease-1', proc{|x,y| _state3(x,y)}, '%x', '%y') - end - - def _state2(x,y) # create circle - @mode = 2 - - r = Integer(Math.sqrt((x-@mark[0])**2 + (y-@mark[1])**2)) - @target.coords([canvasx(@mark[0] - r), canvasy(@mark[1] - r)], - [canvasx(@mark[0] + r), canvasy(@mark[1] + r)]) - end - - def _state3(x,y) # set line start - @mode = 3 - - @target = TkcLine.new(self, - [canvasx(x), canvasy(y)], [canvasx(x), canvasy(y)], - :arrow=>:first, :arrowshape=>[10, 14, 5], - :fill=>@col, :tags=>[@memo_id_tag]) - @items << @target - @mark = [x, y] - - bind('Motion', proc{|x,y| _state4(x,y)}, '%x', '%y') - bind('ButtonRelease-1', proc{|x,y| _state5(x,y)}, '%x', '%y') - end - - def _state4(x,y) # create line - @mode = 4 - - @target.coords([canvasx(@mark[0]), canvasy(@mark[1])], - [canvasx(x), canvasy(y)]) - end - - def _state5(x,y) # set text - @mode = 5 - - if x - @mark[0] >= 0 - justify = 'left' - dx = - @delta - - if y - @mark[1] >= 0 - anchor = 'nw' - dy = - @delta - else - anchor = 'sw' - dy = @delta - end - else - justify = 'right' - dx = @delta - - if y - @mark[1] >= 0 - anchor = 'ne' - dy = - @delta - else - anchor = 'se' - dy = @delta - end - end - - bind_remove('Motion') - - @entry.value = '' - @entry.configure(:justify=>justify, :font=>@font, :foreground=>@col) - - ewin = TkcWindow.new(self, [canvasx(x)+dx, canvasy(y)+dy], - :window=>@entry, :state=>:normal, :anchor=>anchor, - :tags=>[@memo_id_tag]) - - @entry.focus - @entry.grab - @state.wait - @entry.grab_release - - ewin.delete - - @target = TkcText.new(self, [canvasx(x), canvasy(y)], - :anchor=>anchor, :justify=>justify, - :fill=>@col, :font=>@font, :text=>@entry.value, - :tags=>[@memo_id_tag]) - - _state0() - end - - #----------------------------------- - public - def load_photo(filename) - @photo.configure(:file=>filename) - end - - def modified? - ! ((find_withtag('all') - [@img]).empty?) - end - - def fig_erase - (find_withtag('all') - [@img]).each{|item| item.delete} - end - - def reset_region - width = @photo.width - height = @photo.height - - if width > @scr_region[2] - @scr_region[0] = -width - @scr_region[2] = width - end - - if height > @scr_region[3] - @scr_region[1] = -height - @scr_region[3] = height - end - - self.scrollregion(@scr_region) - self.xview_moveto(0.25) - self.yview_moveto(0.25) - end - - def get_texts - ret = [] - find_withtag('all').each{|item| - if item.kind_of?(TkcText) - ret << item[:text] - end - } - ret - end -end -############################ - -# define methods for menu -def open_file(canvas, fname) - if canvas.modified? - ret = Tk.messageBox(:icon=>'warning',:type=>'okcancel',:default=>'cancel', - :message=>'Canvas may be modified. Realy erase? ') - return if ret == 'cancel' - end - - filetypes = [ - ['GIF Files', '.gif'], - ['GIF Files', [], 'GIFF'], - ['PPM Files', '.ppm'], - ['PGM Files', '.pgm'] - ] - - begin - if Tk::Img::package_version != '' - filetypes << ['JPEG Files', ['.jpg', '.jpeg']] - filetypes << ['PNG Files', '.png'] - filetypes << ['PostScript Files', '.ps'] - filetypes << ['PDF Files', '.pdf'] - filetypes << ['Windows Bitmap Files', '.bmp'] - filetypes << ['Windows Icon Files', '.ico'] - filetypes << ['PCX Files', '.pcx'] - filetypes << ['Pixmap Files', '.pixmap'] - filetypes << ['SGI Files', '.sgi'] - filetypes << ['Sun Raster Files', '.sun'] - filetypes << ['TGA Files', '.tga'] - filetypes << ['TIFF Files', '.tiff'] - filetypes << ['XBM Files', '.xbm'] - filetypes << ['XPM Files', '.xpm'] - end - rescue - end - - filetypes << ['ALL Files', '*'] - - fpath = Tk.getOpenFile(:filetypes=>filetypes) - return if fpath.empty? - - begin - canvas.load_photo(fpath) - rescue => e - Tk.messageBox(:icon=>'error', :type=>'ok', - :message=>"Fail to read '#{fpath}'.\n#{e.message}") - end - - canvas.fig_erase - canvas.reset_region - - fname.value = fpath -end - -# -------------------------------- -def save_memo(canvas, fname) - initname = fname.value - if initname != '-' - initname = File.basename(initname, File.extname(initname)) - fpath = Tk.getSaveFile(:filetypes=>[ ['Text Files', '.txt'], - ['ALL Files', '*'] ], - :initialfile=>initname) - else - fpath = Tk.getSaveFile(:filetypes=>[ ['Text Files', '.txt'], - ['ALL Files', '*'] ]) - end - return if fpath.empty? - - begin - fid = open(fpath, 'w') - rescue => e - Tk.messageBox(:icon=>'error', :type=>'ok', - :message=>"Fail to open '#{fname.value}'.\n#{e.message}") - end - - begin - canvas.get_texts.each{|txt| - fid.print(txt, "\n") - } - ensure - fid.close - end -end - -# -------------------------------- -def ps_print(canvas, fname) - initname = fname.value - if initname != '-' - initname = File.basename(initname, File.extname(initname)) - fpath = Tk.getSaveFile(:filetypes=>[ ['Postscript Files', '.ps'], - ['ALL Files', '*'] ], - :initialfile=>initname) - else - fpath = Tk.getSaveFile(:filetypes=>[ ['Postscript Files', '.ps'], - ['ALL Files', '*'] ]) - end - return if fpath.empty? - - bbox = canvas.bbox('all') - canvas.postscript(:file=>fpath, :x=>bbox[0], :y=>bbox[1], - :width=>bbox[2] - bbox[0], :height=>bbox[3] - bbox[1]) -end - -# -------------------------------- -def quit(canvas) - ret = Tk.messageBox(:icon=>'warning', :type=>'okcancel', - :default=>'cancel', - :message=>'Realy quit? ') - exit if ret == 'ok' -end - -# -------------------------------- -# setup root -root = TkRoot.new(:title=>'Fig Memo') - -# create canvas frame -canvas = PhotoCanvas.new(root).pack(:fill=>:both, :expand=>true) -usage_frame = TkFrame.new(root, :relief=>:ridge, :borderwidth=>2) -hide_btn = TkButton.new(usage_frame, :text=>'hide usage', - :font=>{:size=>8}, :pady=>1, - :command=>proc{usage_frame.unpack}) -hide_btn.pack(:anchor=>'e', :padx=>5) -usage = TkLabel.new(usage_frame, :text=>PhotoCanvas::USAGE, - :font=>'Helvetica 8', :justify=>:left).pack - -show_usage = proc{ - usage_frame.pack(:before=>canvas, :fill=>:x, :expand=>true) -} - -fname = TkVariable.new('-') -f = TkFrame.new(root, :relief=>:sunken, :borderwidth=>1).pack(:fill=>:x) -label = TkLabel.new(f, :textvariable=>fname, - :font=>{:size=>-12, :weight=>:bold}, - :anchor=>'w').pack(:side=>:left, :fill=>:x, :padx=>10) - -# create menu -mspec = [ - [ ['File', 0], - ['Show Usage', proc{show_usage.call}, 5], - '---', - ['Open Image File', proc{open_file(canvas, fname)}, 0], - ['Save Memo Texts', proc{save_memo(canvas, fname)}, 0], - '---', - ['Save Postscript', proc{ps_print(canvas, fname)}, 5], - '---', - ['Quit', proc{quit(canvas)}, 0] - ] -] -root.add_menubar(mspec) - -# manage wm_protocol -root.protocol(:WM_DELETE_WINDOW){quit(canvas)} - -# show usage -show_usage.call - -# -------------------------------- -# start eventloop -Tk.mainloop |