ruby--ruby/ext/tk/sample/demos-en/hscale.rb

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require "tkcanvas"
if defined?($hscale_demo) && $hscale_demo
$hscale_demo.destroy
$hscale_demo = nil
end
$hscale_demo = TkToplevel.new {|w|
title("Horizontal Scale Demonstration")
iconname("hscale")
}
positionWindow($hscale_demo)
msg = TkLabel.new($hscale_demo) {
font $font
wraplength '3.5i'
justify 'left'
text "An arrow and a horizontal scale are displayed below. If you click or drag mouse button 1 in the scale, you can change the length of the arrow."
}
msg.pack('side'=>'top')
TkFrame.new($hscale_demo) {|frame|
TkButton.new(frame) {
text 'Dismiss'
command proc {
tmppath = $hscale_demo
$hscale_demo = nil
tmppath.destroy
}
}.pack('side'=>'left', 'expand'=>'yes')
TkButton.new(frame) {
text 'Show Code'
command proc { showCode 'hscale' }
}.pack('side'=>'left', 'expand'=>'yes')
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
TkFrame.new($hscale_demo) {|frame|
canvas = TkCanvas.new(frame) {|c|
width 50
height 50
bd 0
highlightthickness 0
TkcPolygon.new(c, '0', '0', '1', '1', '2', '2') {
fill 'DeepSkyBlue'
tags 'poly'
}
TkcLine.new(c, '0', '0', '1', '1', '2', '2', '0', '0') {
fill 'black'
tags 'line'
}
}.pack('side'=>'top', 'expand'=>'yes', 'anchor'=>'s', 'fill'=>'x', 'padx'=>'15')
scale = TkScale.new(frame) {
orient 'horizontal'
length 284
from 0
to 250
command proc{|value| setWidth(canvas, value)}
tickinterval 50
}.pack('side'=>'bottom', 'expand'=>'yes', 'anchor'=>'n')
scale.set 75
}.pack('side'=>'top', 'fill'=>'x')
def setWidth(w, width)
width = width + 21
x2 = width - 30
if x2 < 21
x2 = 21
end
w.coords 'poly',20,15,20,35,x2,35,x2,45,width,25,x2,5,x2,15,20,15
w.coords 'line',20,15,20,35,x2,35,x2,45,width,25,x2,5,x2,15,20,15
end
* ext/tk/*: full update Ruby/Tk to support Ruby(1.9|1.8) and Tc/Tk8.5. * ext/tk/lib/tkextlib/tile.rb: [incompatible] remove TileWidgets' instate/state/identify method to avoid the conflict with standard widget options. Those methods are renamed to ttk_instate/ttk_state/ ttk_identify (tile_instate/tile_state/tile_identify are available too). Although I don't recommend, if you realy need old methods, please define "Tk::USE_OBSOLETE_TILE_STATE_METHOD = true" before "require 'tkextlib/tile'". * ext/tk/lib/tkextlib/tile.rb: "Tk::Tile::__Import_Tile_Widgets__!" is obsolete. It outputs warning. To control default widget set, use "Tk.default_widget_set = :Ttk". * ext/tk/lib/tk.rb: __IGNORE_UNKNOWN_CONFIGURE_OPTION__ method and __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!(mode) method are defind as module methods of TkConfigMethod. It may help users to wrap old Ruby/Tk scripts (use standard widgets) to force to use Ttk widgets. Ttk widgets don't have some options of standard widgets which are control the view of widgets. When set ignore-mode true, configure method tries to ignoure such unknown options with no exception. Of course, it may raise other troubles on the GUI design. So, those are a little danger methods. * ext/tk/lib/tk/itemconfig.rb: __IGNORE_UNKNOWN_CONFIGURE_OPTION__ method and __set_IGNORE_UNKNOWN_CONFIGURE_OPTION__!(mode) method are defind as module methods of TkItemConfigMethod as the same purpose as TkConfigMethod's ones. * ext/tk/sample/ttk_wrapper.rb: A new example. This is a tool for wrapping old Ruby/Tk scripts (which use standard widgets) to use Ttk (Tile) widgets as default. * ext/tk/sample/tkextlib/tile/demo.rb: use ttk_instate/ttk_state method instead of instate/state method. * ext/tk/lib/tk/root, ext/tk/lib/tk/namespace.rb, ext/tk/lib/tk/text.rb, ext/tk/lib/tkextlib/*: some 'instance_eval's are replaced to "instance_exec(self)". * ext/tk/lib/tk/event.rb: bug fix on KEY_TBL and PROC_TBL (?x is not a character code on Ruby1.9). * ext/tk/lib/tk/variable.rb: support new style of operation argument on Tcl/Tk's 'trace' command for variables. * ext/tk/sample/demos-jp/widget, ext/tk/sample/demos-en/widget: bug fix * ext/tk/sammple/demos-jp/textpeer.rb, ext/tk/sammple/demos-en/textpeer.rb: new widget demo. * ext/tk/tcltklib.c: decrase SEGV troubles (probably) * ext/tk/lib/tk.rb: remove Thread.critical access if Ruby1.9 * ext/tk/lib/tk/multi-tk.rb: support Ruby1.9 (probably) * ext/tk/lib/tkextlib/tile.rb: add method to define Tcl/Tk command to make Tcl/Tk theme sources (based on different version of Tile extension) available. (Tk::Tile::__define_LoadImages_proc_for_comaptibility__) * ext/tk/lib/tk.rb, ext/tk/lib/tk/wm.rb: support dockable frames (Tcl/Tk8.5 feature). 'wm' command can treat many kinds of widgets as toplevel widgets. * ext/tk/lib/tkextlib/tile/style.rb: ditto. (Tk::Tile::Style.__define_wrapper_proc_for_compatibility__) * ext/tk/lib/tk/font.rb: add actual_hash and metrics_hash to get properties as a hash. metrics_hash method returns a boolean value for 'fixed' option. But metrics method returns numeric value (0 or 1) for 'fixed' option, because of backward compatibility. * ext/tk/lib/tk/timer.rb: somtimes fail to set callback procedure. * ext/tk/lib/tk.rb: add Tk.sleep and Tk.wakeup method. Tk.sleep doesn't block the eventloop. It will be better to use the method in event callbacks. * ext/tk/sample/tksleep_sample.rb: sample script about Tk.sleep. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@15848 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
2008-03-29 05:25:12 +00:00