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141 lines
3.8 KiB
141 lines
3.8 KiB
class Viewer < TQt::Widget
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slots 'setDefault()', 'setSansSerif()', 'setItalics()'
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def initialize
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super
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setFontSubstitutions
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codec = TQt::TextCodec::codecForName("utf8")
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# Shouldn't 'pack("U*")' for UTF-8 work here? - Richard
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# The 'U' option packs each element into two bytes and doesn't work
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# The 'c' option packs them into a single byte and does work
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greeting_heb = codec.toUnicode([0327, 0251, 0327, 0234, 0327, 0225, 0327, 0235].pack("C*"))
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greeting_ru = codec.toUnicode([0320, 0227, 0320, 0264, 0321, 0200, 0320, 0260, 0320, 0262, 0321, 0201, 0321, 0202, 0320, 0262, 0321, 0203, 0320, 0271, 0321, 0202, 0320, 0265].pack("C*"))
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greeting_en = 'Hello'
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@greetings = TQt::TextView.new(self, 'textview')
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@greetings.setText(
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greeting_en + "\n" +
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greeting_ru + "\n" +
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greeting_heb)
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@fontInfo = TQt::TextView.new(self, 'fontinfo')
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setDefault
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@defaultButton = TQt::PushButton.new('Default', self, 'pushbutton1')
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@defaultButton.setFont(TQt::Font.new('times'))
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connect(@defaultButton, SIGNAL('clicked()'), self, SLOT('setDefault()'))
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@sansSerifButton = TQt::PushButton.new('Sans Serif', self, 'pushbutton2')
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@sansSerifButton.setFont(TQt::Font.new('Helvetica', 12))
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connect(@sansSerifButton, SIGNAL('clicked()'), self, SLOT('setSansSerif()'))
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@italicsButton = TQt::PushButton.new('Italics', self, 'pushbutton1')
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@italicsButton.setFont(TQt::Font.new('lucida', 12, TQt::Font.Bold, true))
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connect(@italicsButton, SIGNAL('clicked()'), self, SLOT('setItalics()'))
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layout
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end
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def setDefault
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font = TQt::Font.new('Bavaria')
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font.setPointSize(24)
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font.setWeight(TQt::Font.Bold)
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font.setUnderline(true)
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@greetings.setFont(font)
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showFontInfo(font)
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end
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def setSansSerif
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font = TQt::Font.new('Newyork', 18)
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font.setStyleHint(TQt::Font.SansSerif)
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@greetings.setFont(font)
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showFontInfo(font)
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end
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def setItalics
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font = TQt::Font.new('Tokyo')
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font.setPointSize(32)
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font.setWeight(TQt::Font.Bold)
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font.setItalic(true)
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@greetings.setFont(font)
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showFontInfo(font)
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end
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def setFontSubstitutions
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substitutes = Array.new
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substitutes.push('Times')
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substitutes.push('Mincho')
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substitutes.push('Arabic Newspaper')
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substitutes.push('crox')
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TQt::Font.insertSubstitutions('Bavaria', substitutes)
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TQt::Font.insertSubstitution('Tokyo', 'Lucida')
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end
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def layout
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textViewContainer = TQt::HBoxLayout.new
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textViewContainer.addWidget(@greetings)
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textViewContainer.addWidget(@fontInfo)
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buttonContainer = TQt::HBoxLayout.new
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buttonContainer.addWidget(@defaultButton)
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buttonContainer.addWidget(@sansSerifButton)
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buttonContainer.addWidget(@italicsButton)
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maxButtonHeight = @defaultButton.height
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if (@sansSerifButton.height > maxButtonHeight)
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maxButtonHeight = @sansSerifButton.height
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end
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if (@italicsButton.height > maxButtonHeight)
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maxButtonHeight = @italicsButton.height
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end
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@defaultButton.setFixedHeight(maxButtonHeight)
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@sansSerifButton.setFixedHeight(maxButtonHeight)
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@italicsButton.setFixedHeight(maxButtonHeight)
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container = TQt::VBoxLayout.new(self)
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container.addLayout(textViewContainer)
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container.addLayout(buttonContainer)
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resize(700, 250)
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end
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def showFontInfo (font)
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info = TQt::FontInfo.new(font)
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messageText =
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'Font requested: "' +
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font.family + '" ' +
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font.pointSize.to_s + 'pt<BR>' +
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'Font used: "' +
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info.family.to_s + '" ' +
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info.pointSize.to_s + 'pt<P>'
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substitutions = TQt::Font.substitutes(font.family)
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unless substitutions.size == 0
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messageText = messageText + 'The following substitutions exist for ' +
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font.family + ':<UL>'
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substitutions.each {|x|
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messageText = messageText + '<LI>"' + x + '"'
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}
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messageText = messageText + '</UL>'
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else
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messageText = messageText + 'No substitutions exist for ' + font.family + '.'
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end
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@fontInfo.setText(messageText)
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end
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end
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