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Diffstat (limited to 'ruby_1_8_6/ext/tk/sample/demos-en/clrpick.rb')
-rw-r--r-- | ruby_1_8_6/ext/tk/sample/demos-en/clrpick.rb | 77 |
1 files changed, 77 insertions, 0 deletions
diff --git a/ruby_1_8_6/ext/tk/sample/demos-en/clrpick.rb b/ruby_1_8_6/ext/tk/sample/demos-en/clrpick.rb new file mode 100644 index 0000000000..9486fde314 --- /dev/null +++ b/ruby_1_8_6/ext/tk/sample/demos-en/clrpick.rb @@ -0,0 +1,77 @@ +# clrpick.rb +# +# This demonstration script prompts the user to select a color. +# +# widget demo prompts the user to select a color (called by 'widget') +# + +# toplevel widget +if defined?($clrpick_demo) && $clrpick_demo + $clrpick_demo.destroy + $clrpick_demo = nil +end + +# demo toplevel widget +$clrpick_demo = TkToplevel.new {|w| + title("Color Selection Dialogs") + iconname("colors") + positionWindow(w) +} + +# label +TkLabel.new($clrpick_demo,'font'=>$font,'wraplength'=>'4i','justify'=>'left', + 'text'=>"Press the buttons below to choose the foreground and background colors for the widgets in this window.").pack('side'=>'top') + +# frame +TkFrame.new($clrpick_demo) {|frame| + TkButton.new(frame) { + text 'Dismiss' + command proc{ + tmppath = $clrpick_demo + $clrpick_demo = nil + tmppath.destroy + } + }.pack('side'=>'left', 'expand'=>'yes') + + TkButton.new(frame) { + text 'Show Code' + command proc{showCode 'clrpick'} + }.pack('side'=>'left', 'expand'=>'yes') +}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m') + +# button +TkButton.new($clrpick_demo, 'text'=>'Set background color ...') {|b| + command(proc{setColor $clrpick_demo, b, 'background', + ['background', 'highlightbackground']}) + pack('side'=>'top', 'anchor'=>'c', 'pady'=>'2m') +} + +TkButton.new($clrpick_demo, 'text'=>'Set foreground color ...') {|b| + command(proc{setColor $clrpick_demo, b, 'foreground', ['foreground']}) + pack('side'=>'top', 'anchor'=>'c', 'pady'=>'2m') +} + +def setColor(w,button,name,options) + w.grab + initialColor = button[name] + color = Tk.chooseColor('title'=>"Choose a #{name} color", 'parent'=>w, + 'initialcolor'=>initialColor) + if color != "" + setColor_helper(w,options,color) + end + + w.grab('release') +end + +def setColor_helper(w, options, color) + options.each{|opt| + begin + w[opt] = color + rescue + end + } + TkWinfo.children(w).each{|child| + setColor_helper child, options, color + } +end + |