mirror of
https://github.com/ruby/ruby.git
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2fecb27eb4
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33271 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
247 lines
8.9 KiB
Ruby
247 lines
8.9 KiB
Ruby
# -*- coding: utf-8 -*-
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#
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# arrowhead widget demo (called by 'widget')
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#
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# arrowSetup --
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# This method regenerates all the text and graphics in the canvas
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# window. It's called when the canvas is initially created, and also
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# whenever any of the parameters of the arrow head are changed
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# interactively.
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#
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# Arguments:
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# c - Name of the canvas widget.
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def arrowSetup(c)
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v = $demo_arrowInfo
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# Remember the current box, if there is one.
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tags = c.gettags('current')
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if tags != []
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cur = tags.find{|t| t.kind_of?(String) && t =~ /^box[1-3]$/ }
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else
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cur = nil
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end
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# Create the arrow and outline.
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c.delete('all')
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TkcLine.new(c, v.x1, v.y, v.x2, v.y,
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{ 'width'=>10 * v.width,
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'arrowshape'=>[10*v.a, 10*v.b, 10*v.c],
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'arrow'=>'last'
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}.update(v.bigLineStyle) )
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xtip = v.x2 - 10*v.b
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deltaY = 10*v.c + 5*v.width
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TkcLine.new(c, v.x2, v.y, xtip, v.y + deltaY,
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v.x2 - 10*v.a, v.y, xtip, v.y - deltaY, v.x2, v.y,
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'width'=>2, 'capstyle'=>'round', 'joinstyle'=>'round')
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# Create the boxes for reshaping the line and arrowhead.
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TkcRectangle.new(c, v.x2-10*v.a-5, v.y-5, v.x2-10*v.a+5, v.y+5,
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{'tags'=>['box1', $arrowTag_box]}.update(v.boxStyle) )
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TkcRectangle.new(c, xtip-5, v.y-deltaY-5, xtip+5, v.y-deltaY+5,
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{'tags'=>['box2', $arrowTag_box]}.update(v.boxStyle) )
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TkcRectangle.new(c, v.x1-5, v.y-5*v.width-5, v.x1+5, v.y-5*v.width+5,
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{'tags'=>['box3', $arrowTag_box]}.update(v.boxStyle) )
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c.itemconfigure cur, v.activeStyle if cur
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# Create three arrows in actual size with the same parameters
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TkcLine.new(c, v.x2+50, 0, v.x2+50, 1000, 'width'=>2)
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tmp = v.x2+100
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TkcLine.new(c, tmp, v.y-125, tmp, v.y-75, 'width'=>v.width,
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'arrow'=>'both', 'arrowshape'=>[v.a, v.b, v.c])
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TkcLine.new(c, tmp-25, v.y, tmp+25, v.y, 'width'=>v.width,
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'arrow'=>'both', 'arrowshape'=>[v.a, v.b, v.c])
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TkcLine.new(c, tmp-25, v.y+75, tmp+25, v.y+125, 'width'=>v.width,
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'arrow'=>'both', 'arrowshape'=>[v.a, v.b, v.c])
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# Create a bunch of other arrows and text items showing the
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# current dimensions.
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tmp = v.x2+10
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TkcLine.new(c, tmp, v.y-5*v.width, tmp, v.y-deltaY,
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'arrow'=>'both', 'arrowshape'=>v.smallTips)
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TkcText.new(c, v.x2+15, v.y-deltaY+5*v.c, 'text'=>v.c, 'anchor'=>'w')
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tmp = v.x1-10
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TkcLine.new(c, tmp, v.y-5*v.width, tmp, v.y+5*v.width,
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'arrow'=>'both', 'arrowshape'=>v.smallTips)
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TkcText.new(c, v.x1-15, v.y, 'text'=>v.width, 'anchor'=>'e')
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tmp = v.y+5*v.width+10*v.c+10
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TkcLine.new(c, v.x2-10*v.a, tmp, v.x2, tmp,
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'arrow'=>'both', 'arrowshape'=>v.smallTips)
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TkcText.new(c, v.x2-5*v.a, tmp+5, 'text'=>v.a, 'anchor'=>'n')
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tmp = tmp+25
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TkcLine.new(c, v.x2-10*v.b, tmp, v.x2, tmp,
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'arrow'=>'both', 'arrowshape'=>v.smallTips)
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TkcText.new(c, v.x2-5*v.b, tmp+5, 'text'=>v.b, 'anchor'=>'n')
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if $tk_version =~ /^4.*/
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TkcText.new(c, v.x1, 310, 'text'=>"'width'=>#{v.width}", 'anchor'=>'w',
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'font'=>'-*-Helvetica-Medium-R-Normal--*-180-*-*-*-*-*-*')
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TkcText.new(c, v.x1, 330,
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'text'=>"'arrowshape'=>[#{v.a}, #{v.b}, #{v.c}]",'anchor'=>'w',
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'font'=>'-*-Helvetica-Medium-R-Normal--*-180-*-*-*-*-*-*')
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else
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TkcText.new(c, v.x1, 310, 'text'=>"'width'=>#{v.width}", 'anchor'=>'w',
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'font'=>'Helvetica 18')
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TkcText.new(c, v.x1, 330,
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'text'=>"'arrowshape'=>[#{v.a}, #{v.b}, #{v.c}]",
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'anchor'=>'w', 'font'=>'Helvetica 18')
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end
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v.count += 1
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end
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# toplevel widget が存在すれば削除する
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if defined?($arrow_demo) && $arrow_demo
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$arrow_demo.destroy
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$arrow_demo = nil
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end
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# demo 用の toplevel widget を生成
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$arrow_demo = TkToplevel.new {|w|
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title("Arrowhead Editor Demonstration")
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iconname("arrow")
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positionWindow(w)
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}
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base_frame = TkFrame.new($arrow_demo).pack(:fill=>:both, :expand=>true)
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# label 生成
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TkLabel.new(base_frame, 'font'=>$font, 'wraplength'=>'5i', 'justify'=>'left',
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'text'=>"この widget で、キャンバスで使われるラインについて様々な幅や矢印の頭の形を試してみることができます。線の幅や矢印の形を変えるには、拡大された矢印についている 3つの四角をドラッグしてください。右側の矢印は普通の大きさでのサンプルを示しています。下のテキストはラインアイテムに対する設定オプションです。"){
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pack('side'=>'top')
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}
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# frame 生成
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$arrow_buttons = TkFrame.new(base_frame) {|frame|
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TkButton.new(frame) {
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#text '了解'
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text '閉じる'
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command proc{
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tmppath = $arrow_demo
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$arrow_demo = nil
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tmppath.destroy
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}
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}.pack('side'=>'left', 'expand'=>'yes')
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TkButton.new(frame) {
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text 'コード参照'
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command proc{showCode 'arrow'}
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}.pack('side'=>'left', 'expand'=>'yes')
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}
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$arrow_buttons.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
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# canvas 設定
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$arrow_canvas = TkCanvas.new(base_frame, 'width'=>500, 'height'=>350,
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'relief'=>'sunken', 'borderwidth'=>2)
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$arrow_canvas.pack('expand'=>'yes', 'fill'=>'both')
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# 値設定
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unless Struct.const_defined?("ArrowInfo")
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$demo_arrowInfo = Struct.new("ArrowInfo", :a, :b, :c, :width, :motionProc,
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:x1, :x2, :y, :smallTips, :count,
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:bigLineStyle, :boxStyle, :activeStyle).new
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end
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$demo_arrowInfo.a = 8
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$demo_arrowInfo.b = 10
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$demo_arrowInfo.c = 3
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$demo_arrowInfo.width = 2
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$demo_arrowInfo.motionProc = proc{}
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$demo_arrowInfo.x1 = 40
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$demo_arrowInfo.x2 = 350
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$demo_arrowInfo.y = 150
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$demo_arrowInfo.smallTips = [5, 5, 2]
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$demo_arrowInfo.count = 0
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if TkWinfo.depth($arrow_canvas) > 1
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$demo_arrowInfo.bigLineStyle = {'fill'=>'SkyBlue1'}
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$demo_arrowInfo.boxStyle = {'fill'=>'', 'outline'=>'black', 'width'=>1}
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$demo_arrowInfo.activeStyle = {'fill'=>'red', 'outline'=>'black', 'width'=>1}
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else
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$demo_arrowInfo.bigLineStyle = {'fill'=>'black',
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'stipple'=>'@'+[$demo_dir,'..','images','grey.25'].join(File::Separator)}
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$demo_arrowInfo.boxStyle = {'fill'=>'', 'outline'=>'black', 'width'=>1}
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$demo_arrowInfo.activeStyle = {'fill'=>'black','outline'=>'black','width'=>1}
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end
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$arrowTag_box = TkcTag.new($arrow_canvas)
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arrowSetup $arrow_canvas
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$arrowTag_box.bind('Enter', proc{$arrow_canvas.itemconfigure('current', $demo_arrowInfo.activeStyle)})
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$arrowTag_box.bind('Leave', proc{$arrow_canvas.itemconfigure('current', $demo_arrowInfo.boxStyle)})
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$arrowTag_box.bind('B1-Enter', proc{})
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$arrowTag_box.bind('B1-Leave', proc{})
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$arrow_canvas.itembind('box1', '1',
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proc{$demo_arrowInfo.motionProc \
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= proc{|x,y| arrowMove1 $arrow_canvas, x, y}})
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$arrow_canvas.itembind('box2', '1',
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proc{$demo_arrowInfo.motionProc \
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= proc{|x,y| arrowMove2 $arrow_canvas, x, y}})
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$arrow_canvas.itembind('box3', '1',
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proc{$demo_arrowInfo.motionProc \
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= proc{|x,y| arrowMove3 $arrow_canvas, x, y}})
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$arrowTag_box.bind('B1-Motion',
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proc{|x,y| $demo_arrowInfo.motionProc.call(x,y)}, "%x %y")
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$arrow_canvas.bind('Any-ButtonRelease-1', proc{arrowSetup $arrow_canvas})
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# arrowMove1 --
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# This method is called for each mouse motion event on box1 (the
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# one at the vertex of the arrow). It updates the controlling parameters
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# for the line and arrowhead.
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#
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# Arguments:
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# c - The name of the canvas window.
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# x, y - The coordinates of the mouse.
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def arrowMove1(c,x,y)
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v = $demo_arrowInfo
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newA = (v.x2+5-c.canvasx(x).round)/10
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newA = 0 if newA < 0
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newA = 25 if newA > 25
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if newA != v.a
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c.move('box1', 10*(v.a-newA), 0)
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v.a = newA
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end
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end
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# arrowMove2 --
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# This method is called for each mouse motion event on box2 (the
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# one at the trailing tip of the arrowhead). It updates the controlling
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# parameters for the line and arrowhead.
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#
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# Arguments:
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# c - The name of the canvas window.
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# x, y - The coordinates of the mouse.
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def arrowMove2(c,x,y)
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v = $demo_arrowInfo
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newB = (v.x2+5-c.canvasx(x).round)/10
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newB = 0 if newB < 0
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newB = 25 if newB > 25
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newC = (v.y+5-c.canvasy(y).round-5*v.width)/10
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newC = 0 if newC < 0
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newC = 20 if newC > 20
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if newB != v.b || newC != v.c
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c.move('box2', 10*(v.b-newB), 10*(v.c-newC))
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v.b = newB
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v.c = newC
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end
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end
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# arrowMove3 --
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# This method is called for each mouse motion event on box3 (the
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# one that controls the thickness of the line). It updates the
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# controlling parameters for the line and arrowhead.
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#
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# Arguments:
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# c - The name of the canvas window.
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# x, y - The coordinates of the mouse.
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def arrowMove3(c,x,y)
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v = $demo_arrowInfo
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newWidth = (v.y+2-c.canvasy(y).round)/5
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newWidth = 0 if newWidth < 0
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newWidth = 20 if newWidth > 20
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if newWidth != v.width
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c.move('box3', 0, 5*(v.width-newWidth))
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v.width = newWidth
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end
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end
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