mirror of
https://github.com/ruby/ruby.git
synced 2022-11-09 12:17:21 -05:00
3514110b89
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@7029 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
211 lines
9.6 KiB
Ruby
211 lines
9.6 KiB
Ruby
# style.rb
|
|
#
|
|
# This demonstration script creates a text widget that illustrates the
|
|
# various display styles that may be set for tags.
|
|
#
|
|
# text (display styles) widget demo (called by 'widget')
|
|
#
|
|
|
|
# toplevel widget
|
|
if defined?($style_demo) && $style_demo
|
|
$style_demo.destroy
|
|
$style_demo = nil
|
|
end
|
|
|
|
# demo toplevel widget
|
|
$style_demo = TkToplevel.new {|w|
|
|
title("Text Demonstration - Display Styles")
|
|
iconname("style")
|
|
positionWindow(w)
|
|
}
|
|
|
|
# frame
|
|
TkFrame.new($style_demo) {|frame|
|
|
TkButton.new(frame) {
|
|
text 'Dismiss'
|
|
command proc{
|
|
tmppath = $style_demo
|
|
$style_demo = nil
|
|
tmppath.destroy
|
|
}
|
|
}.pack('side'=>'left', 'expand'=>'yes')
|
|
|
|
TkButton.new(frame) {
|
|
text 'Show Code'
|
|
command proc{showCode 'style'}
|
|
}.pack('side'=>'left', 'expand'=>'yes')
|
|
}.pack('side'=>'bottom', 'fill'=>'x', 'pady'=>'2m')
|
|
|
|
# text
|
|
TkText.new($style_demo){|t|
|
|
#
|
|
setgrid 'true'
|
|
width 70
|
|
height 32
|
|
wrap 'word'
|
|
TkScrollbar.new($style_demo) {|s|
|
|
pack('side'=>'right', 'fill'=>'y')
|
|
command proc{|*args| t.yview(*args)}
|
|
t.yscrollcommand proc{|first,last| s.set first,last}
|
|
}
|
|
pack('expand'=>'yes', 'fill'=>'both')
|
|
|
|
#
|
|
style_tag_bold = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-O-Normal--*-120-*-*-*-*-*-*')
|
|
style_tag_big = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*', 'kanjifont'=>$msg_kanji_font)
|
|
style_tag_verybig = TkTextTag.new(t, 'font'=>'-*-Helvetica-Bold-R-Normal--*-240-*-*-*-*-*-*')
|
|
# style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*', 'kanjifont'=>$kanji_font)
|
|
style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*')
|
|
###
|
|
# case($tk_version)
|
|
# when /^4.*/
|
|
# style_tag_big = TkTextTag.new(t, 'font'=>'-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*', 'kanjifont'=>$msg_kanji_font)
|
|
# style_tag_small = TkTextTag.new(t, 'font'=>'-Adobe-Helvetica-Bold-R-Normal-*-100-*', 'kanjifont'=>$kanji_font)
|
|
# when /^8.*/
|
|
# unless $style_demo_do_first
|
|
# $style_demo_do_first = true
|
|
# Tk.tk_call('font', 'create', '@bigascii',
|
|
# '-copy', '-*-Courier-Bold-R-Normal--*-140-*-*-*-*-*-*')
|
|
# Tk.tk_call('font', 'create', '@smallascii',
|
|
# '-copy', '-Adobe-Helvetica-Bold-R-Normal-*-100-*')
|
|
# Tk.tk_call('font', 'create', '@cBigFont',
|
|
# '-compound', '@bigascii @msg_knj')
|
|
# Tk.tk_call('font', 'create', '@cSmallFont',
|
|
# '-compound', '@smallascii @kanji')
|
|
# end
|
|
# style_tag_big = TkTextTag.new(t, 'font'=>'@cBigFont')
|
|
# style_tag_small = TkTextTag.new(t, 'font'=>'@cSmallFont')
|
|
# end
|
|
|
|
#
|
|
if TkWinfo.depth($root).to_i > 1
|
|
style_tag_color1 = TkTextTag.new(t, 'background'=>'#a0b7ce')
|
|
style_tag_color2 = TkTextTag.new(t, 'foreground'=>'red')
|
|
style_tag_raised = TkTextTag.new(t, 'relief'=>'raised', 'borderwidth'=>1)
|
|
style_tag_sunken = TkTextTag.new(t, 'relief'=>'sunken', 'borderwidth'=>1)
|
|
else
|
|
style_tag_color1 = TkTextTag.new(t, 'background'=>'black',
|
|
'foreground'=>'white')
|
|
style_tag_color2 = TkTextTag.new(t, 'background'=>'black',
|
|
'foreground'=>'white')
|
|
style_tag_raised = TkTextTag.new(t, 'background'=>'white',
|
|
'relief'=>'raised', 'borderwidth'=>1)
|
|
style_tag_sunken = TkTextTag.new(t, 'background'=>'white',
|
|
'relief'=>'sunken', 'borderwidth'=>1)
|
|
end
|
|
|
|
#
|
|
if $tk_version =~ /^4\.[01]/
|
|
style_tag_bgstipple = TkTextTag.new(t, 'background'=>'black',
|
|
'borderwidth'=>0,
|
|
'bgstipple'=>'gray25')
|
|
else
|
|
style_tag_bgstipple = TkTextTag.new(t, 'background'=>'black',
|
|
'borderwidth'=>0,
|
|
'bgstipple'=>'gray12')
|
|
end
|
|
style_tag_fgstipple = TkTextTag.new(t, 'fgstipple'=>'gray50')
|
|
style_tag_underline = TkTextTag.new(t, 'underline'=>'on')
|
|
style_tag_overstrike = TkTextTag.new(t, 'overstrike'=>'on')
|
|
style_tag_right = TkTextTag.new(t, 'justify'=>'right')
|
|
style_tag_center = TkTextTag.new(t, 'justify'=>'center')
|
|
style_tag_super = TkTextTag.new(t, 'offset'=>'4p', 'font'=>'-Adobe-Courier-Medium-R-Normal--*-100-*-*-*-*-*-*')
|
|
style_tag_sub = TkTextTag.new(t, 'offset'=>'-2p', 'font'=>'-Adobe-Courier-Medium-R-Normal--*-100-*-*-*-*-*-*')
|
|
style_tag_margins = TkTextTag.new(t, 'lmargin1'=>'12m', 'lmargin2'=>'6m',
|
|
'rmargin'=>'10m')
|
|
style_tag_spacing = TkTextTag.new(t, 'spacing1'=>'10p', 'spacing2'=>'2p',
|
|
'lmargin1'=>'12m', 'lmargin2'=>'6m',
|
|
'rmargin'=>'10m')
|
|
|
|
#
|
|
insert('end', 'Text widgets like this one allow you to display information in a
|
|
variety of styles. Display styles are controlled using a mechanism
|
|
called ')
|
|
insert('end', 'tags', style_tag_big)
|
|
insert('end', '. Tags are just textual names that you can apply to one
|
|
or more ranges of characters within a text widget. You can configure
|
|
tags with various display styles. If you do this, then the tagged
|
|
characters will be displayed with the styles you chose. The
|
|
available display styles are:
|
|
')
|
|
insert('end', "\n1. Font.", style_tag_big)
|
|
insert('end', " You can choose any X font, ")
|
|
insert('end', "large", style_tag_verybig)
|
|
insert('end', " or ")
|
|
insert('end', "small.\n")
|
|
insert('end', "\n2. Color.", style_tag_big)
|
|
insert('end', " You can change either the ")
|
|
insert('end', "background", style_tag_color1)
|
|
insert('end', " or ")
|
|
insert('end', "foreground", style_tag_color2)
|
|
insert('end', "\ncolor, or ")
|
|
insert('end', "both", style_tag_color1, style_tag_color2)
|
|
insert('end', ".\n")
|
|
insert('end', "\n3. Stippling.", style_tag_big)
|
|
insert('end', " You can cause either the ")
|
|
insert('end', "background", style_tag_bgstipple)
|
|
insert('end', " or ")
|
|
insert('end', "foreground", style_tag_fgstipple)
|
|
insert('end', "\ninformation to be drawn with a stipple fill instead of a solid fill.\n")
|
|
insert('end', "\n4. Underlining.", style_tag_big)
|
|
insert('end', " You can ")
|
|
insert('end', "underline", style_tag_underline)
|
|
insert('end', " ranges of text.\n")
|
|
insert('end', "\n5. Overstrikes.", style_tag_big)
|
|
insert('end', " You can ")
|
|
insert('end', "draw lines through", style_tag_overstrike)
|
|
insert('end', " ranges of text.\n")
|
|
insert('end', "\n6. 3-D effects.", style_tag_big)
|
|
insert('end', " You can arrange for the background to be drawn\nwith a border that makes characters appear either\n")
|
|
insert('end', "raised", style_tag_raised)
|
|
insert('end', " or ")
|
|
insert('end', "sunken", style_tag_sunken)
|
|
insert('end', ".\n")
|
|
insert('end', "\n7. Justification.", style_tag_big)
|
|
insert('end', " You can arrange for lines to be displayed\n")
|
|
insert('end', "left-justified,\n")
|
|
insert('end', "right-justified, or\n", style_tag_right)
|
|
insert('end', "centered.\n", style_tag_center)
|
|
insert('end', "\n8. Superscripts and subscripts.", style_tag_big)
|
|
insert('end', " You can control the vertical\n")
|
|
insert('end', "position of text to generate superscript effects like 10")
|
|
insert('end', "n", style_tag_super)
|
|
insert('end', " or\nsubscript effects like X")
|
|
insert('end', "i", style_tag_sub)
|
|
insert('end', ".\n")
|
|
insert('end', "\n9. Margins.", style_tag_big)
|
|
insert('end', " You can control the amount of extra space left")
|
|
insert('end', " on\neach side of the text:\n")
|
|
insert('end', "This paragraph is an example of the use of ", style_tag_margins)
|
|
insert('end', "margins. It consists of a single line of text ", style_tag_margins)
|
|
insert('end', "that wraps around on the screen. There are two ", style_tag_margins)
|
|
insert('end', "separate left margin values, one for the first ", style_tag_margins)
|
|
insert('end', "display line associated with the text line, ", style_tag_margins)
|
|
insert('end', "and one for the subsequent display lines, which ", style_tag_margins)
|
|
insert('end', "occur because of wrapping. There is also a ", style_tag_margins)
|
|
insert('end', "separate specification for the right margin, ", style_tag_margins)
|
|
insert('end', "which is used to choose wrap points for lines.\n", style_tag_margins)
|
|
insert('end', "\n10. Spacing.", style_tag_big)
|
|
insert('end', " You can control the spacing of lines with three\n")
|
|
insert('end', "separate parameters. \"Spacing1\" tells how much ")
|
|
insert('end', "extra space to leave\nabove a line, \"spacing3\" ")
|
|
insert('end', "tells how much space to leave below a line,\nand ")
|
|
insert('end', "if a text line wraps, \"spacing2\" tells how much ")
|
|
insert('end', "space to leave\nbetween the display lines that ")
|
|
insert('end', "make up the text line.\n")
|
|
insert('end', "These indented paragraphs illustrate how spacing ", style_tag_spacing)
|
|
insert('end', "can be used. Each paragraph is actually a ", style_tag_spacing)
|
|
insert('end', "single line in the text widget, which is ", style_tag_spacing)
|
|
insert('end', "word-wrapped by the widget.\n", style_tag_spacing)
|
|
insert('end', "Spacing1 is set to 10 points for this text, ", style_tag_spacing)
|
|
insert('end', "which results in relatively large gaps between ", style_tag_spacing)
|
|
insert('end', "the paragraphs. Spacing2 is set to 2 points, ", style_tag_spacing)
|
|
insert('end', "which results in just a bit of extra space ", style_tag_spacing)
|
|
insert('end', "within a pararaph. Spacing3 isn't used ", style_tag_spacing)
|
|
insert('end', "in this example.\n", style_tag_spacing)
|
|
insert('end', "To see where the space is, select ranges of ", style_tag_spacing)
|
|
insert('end', "text within these paragraphs. The selection ", style_tag_spacing)
|
|
insert('end', "highlight will cover the extra space.", style_tag_spacing)
|
|
|
|
}
|
|
|