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75362fbd47
versions of Tck/Tk * (bug fix) initialize error of instance variable on TkComposite * (bug fix) initialize error on encoding-system on MultiTkIp * (bug fix) trouble on destroying widgets * (new) add JP and EN version of Ruby/Tk widget demos git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4249 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
211 lines
9.3 KiB
Ruby
211 lines
9.3 KiB
Ruby
# style.rb
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#
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# This demonstration script creates a text widget that illustrates the
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# various display styles that may be set for tags.
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#
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# text (display styles) widget demo (called by 'widget')
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#
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# toplevel widget
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if defined?($style_demo) && $style_demo
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$style_demo.destroy
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$style_demo = nil
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end
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# demo toplevel widget
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$style_demo = TkToplevel.new {|w|
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title("Text Demonstration - Display Styles")
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iconname("style")
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positionWindow(w)
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}
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# frame
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TkFrame.new($style_demo) {|frame|
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TkButton.new(frame) {
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text 'Dismiss'
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command proc{
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tmppath = $style_demo
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$style_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 'Show Code'
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command proc{showCode 'style'}
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}.pack('side'=>'left', 'expand'=>'yes')
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}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
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# text
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TkText.new($style_demo){|t|
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#
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setgrid 'true'
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width 70
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height 32
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wrap 'word'
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TkScrollbar.new($style_demo) {|s|
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pack('side'=>'right', 'fill'=>'y')
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command proc{|*args| t.yview(*args)}
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t.yscrollcommand proc{|first,last| s.set first,last}
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}
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pack('expand'=>'yes', 'fill'=>'both')
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#
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style_tag_bold = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-O-Normal--*-120-*-*-*-*-*-*')
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style_tag_big = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*', 'kanjifont'=>$msg_kanji_font)
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style_tag_verybig = TkTextTag.new(t, 'font'=>'-*-Helvetica-Bold-R-Normal--*-240-*-*-*-*-*-*')
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# style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*', 'kanjifont'=>$kanji_font)
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style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*')
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###
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# case($tk_version)
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# when /^4.*/
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# style_tag_big = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*', 'kanjifont'=>$msg_kanji_font)
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# style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*', 'kanjifont'=>$kanji_font)
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# when /^8.*/
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# unless $style_demo_do_first
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# $style_demo_do_first = true
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# Tk.tk_call('font', 'create', '@bigascii',
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# '-copy', '-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*')
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# Tk.tk_call('font', 'create', '@smallascii',
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# '-copy', '-Adobe-Helvetica-Bold-R-Normal-*-100-*')
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# Tk.tk_call('font', 'create', '@cBigFont',
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# '-compound', '@bigascii @msg_knj')
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# Tk.tk_call('font', 'create', '@cSmallFont',
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# '-compound', '@smallascii @kanji')
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# end
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# style_tag_big = TkTextTag.new(t, 'font'=>'@cBigFont')
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# style_tag_small = TkTextTag.new(t, 'font'=>'@cSmallFont')
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# end
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#
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if TkWinfo.depth($root).to_i > 1
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style_tag_color1 = TkTextTag.new(t, 'background'=>'#a0b7ce')
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style_tag_color2 = TkTextTag.new(t, 'foreground'=>'red')
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style_tag_raised = TkTextTag.new(t, 'relief'=>'raised', 'borderwidth'=>1)
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style_tag_sunken = TkTextTag.new(t, 'relief'=>'sunken', 'borderwidth'=>1)
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else
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style_tag_color1 = TkTextTag.new(t, 'background'=>'black',
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'foreground'=>'white')
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style_tag_color2 = TkTextTag.new(t, 'background'=>'black',
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'foreground'=>'white')
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style_tag_raised = TkTextTag.new(t, 'background'=>'white',
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'relief'=>'raised', 'borderwidth'=>1)
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style_tag_sunken = TkTextTag.new(t, 'background'=>'white',
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'relief'=>'sunken', 'borderwidth'=>1)
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end
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# <20>ƥ<EFBFBD><C6A5><EFBFBD><EFBFBD>ȥ<EFBFBD><C8A5><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> (<28><><EFBFBD><EFBFBD>¾)
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if $tk_version =~ /^4\.[01]/
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style_tag_bgstipple = TkTextTag.new(t, 'background'=>'black',
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'borderwidth'=>0,
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'bgstipple'=>'gray25')
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else
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style_tag_bgstipple = TkTextTag.new(t, 'background'=>'black',
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'borderwidth'=>0,
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'bgstipple'=>'gray12')
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end
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style_tag_fgstipple = TkTextTag.new(t, 'fgstipple'=>'gray50')
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style_tag_underline = TkTextTag.new(t, 'underline'=>'on')
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style_tag_overstrike = TkTextTag.new(t, 'overstrike'=>'on')
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style_tag_right = TkTextTag.new(t, 'justify'=>'right')
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style_tag_center = TkTextTag.new(t, 'justify'=>'center')
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style_tag_super = TkTextTag.new(t, 'offset'=>'4p', 'font'=>'-Adobe-Courier-Medium-R-Normal--*-100-*-*-*-*-*-*')
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style_tag_sub = TkTextTag.new(t, 'offset'=>'-2p', 'font'=>'-Adobe-Courier-Medium-R-Normal--*-100-*-*-*-*-*-*')
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style_tag_margins = TkTextTag.new(t, 'lmargin1'=>'12m', 'lmargin2'=>'6m',
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'rmargin'=>'10m')
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style_tag_spacing = TkTextTag.new(t, 'spacing1'=>'10p', 'spacing2'=>'2p',
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'lmargin1'=>'12m', 'lmargin2'=>'6m',
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'rmargin'=>'10m')
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#
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insert('end', 'Text widgets like this one allow you to display information in a
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variety of styles. Display styles are controlled using a mechanism
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called ')
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insert('end', 'tags', style_tag_big)
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insert('end', '. Tags are just textual names that you can apply to one
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or more ranges of characters within a text widget. You can configure
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tags with various display styles. If you do this, then the tagged
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characters will be displayed with the styles you chose. The
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available display styles are:
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')
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insert('end', "\n1. Font.", style_tag_big)
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insert('end', " You can choose any X font, ")
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insert('end', "large", style_tag_verybig)
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insert('end', " or ")
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insert('end', "small.\n")
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insert('end', "\n2. Color.", style_tag_big)
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insert('end', " You can change either the ")
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insert('end', "background", style_tag_color1)
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insert('end', " or ")
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insert('end', "foreground", style_tag_color2)
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insert('end', "\ncolor, or ")
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insert('end', "both", style_tag_color1, style_tag_color2)
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insert('end', ".\n")
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insert('end', "\n3. Stippling.", style_tag_big)
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insert('end', " You can cause either the ")
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insert('end', "background", style_tag_bgstipple)
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insert('end', " or ")
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insert('end', "foreground", style_tag_fgstipple)
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insert('end', "\ninformation to be drawn with a stipple fill instead of a solid fill.\n")
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insert('end', "\n4. Underlining.", style_tag_big)
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insert('end', " You can ")
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insert('end', "underline", style_tag_underline)
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insert('end', " ranges of text.\n")
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insert('end', "\n5. Overstrikes.", style_tag_big)
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insert('end', " You can ")
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insert('end', "draw lines through", style_tag_overstrike)
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insert('end', " ranges of text.\n")
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insert('end', "\n6. 3-D effects.", style_tag_big)
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insert('end', " You can arrange for the background to be drawn\nwith a border that makes characters appear either\n")
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insert('end', "raised", style_tag_raised)
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insert('end', " or ")
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insert('end', "sunken", style_tag_sunken)
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insert('end', ".\n")
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insert('end', "\n7. Justification.", style_tag_big)
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insert('end', " You can arrange for lines to be displayed\n")
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insert('end', "left-justified,\n")
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insert('end', "right-justified, or\n", style_tag_right)
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insert('end', "centered.\n", style_tag_center)
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insert('end', "\n8. Superscripts and subscripts.", style_tag_big)
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insert('end', " You can control the vertical\n")
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insert('end', "position of text to generate superscript effects like 10")
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insert('end', "n", style_tag_super)
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insert('end', " or\nsubscript effects like X")
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insert('end', "i", style_tag_sub)
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insert('end', ".\n")
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insert('end', "\n9. Margins.", style_tag_big)
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insert('end', " You can control the amount of extra space left")
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insert('end', " on\neach side of the text:\n")
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insert('end', "This paragraph is an example of the use of ", style_tag_margins)
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insert('end', "margins. It consists of a single line of text ", style_tag_margins)
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insert('end', "that wraps around on the screen. There are two ", style_tag_margins)
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insert('end', "separate left margin values, one for the first ", style_tag_margins)
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insert('end', "display line associated with the text line, ", style_tag_margins)
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insert('end', "and one for the subsequent display lines, which ", style_tag_margins)
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insert('end', "occur because of wrapping. There is also a ", style_tag_margins)
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insert('end', "separate specification for the right margin, ", style_tag_margins)
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insert('end', "which is used to choose wrap points for lines.\n", style_tag_margins)
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insert('end', "\n10. Spacing.", style_tag_big)
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insert('end', " You can control the spacing of lines with three\n")
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insert('end', "separate parameters. \"Spacing1\" tells how much ")
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insert('end', "extra space to leave\nabove a line, \"spacing3\" ")
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insert('end', "tells how much space to leave below a line,\nand ")
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insert('end', "if a text line wraps, \"spacing2\" tells how much ")
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insert('end', "space to leave\nbetween the display lines that ")
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insert('end', "make up the text line.\n")
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insert('end', "These indented paragraphs illustrate how spacing ", style_tag_spacing)
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insert('end', "can be used. Each paragraph is actually a ", style_tag_spacing)
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insert('end', "single line in the text widget, which is ", style_tag_spacing)
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insert('end', "word-wrapped by the widget.\n", style_tag_spacing)
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insert('end', "Spacing1 is set to 10 points for this text, ", style_tag_spacing)
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insert('end', "which results in relatively large gaps between ", style_tag_spacing)
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insert('end', "the paragraphs. Spacing2 is set to 2 points, ", style_tag_spacing)
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insert('end', "which results in just a bit of extra space ", style_tag_spacing)
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insert('end', "within a pararaph. Spacing3 isn't used ", style_tag_spacing)
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insert('end', "in this example.\n", style_tag_spacing)
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insert('end', "To see where the space is, select ranges of ", style_tag_spacing)
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insert('end', "text within these paragraphs. The selection ", style_tag_spacing)
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insert('end', "highlight will cover the extra space.", style_tag_spacing)
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}
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