class IconPreviewArea

begin¶ ↑

** ** Copyright (C) 2004-2005 Trolltech AS. All rights reserved. ** ** This file is part of the example classes of the Qt Toolkit. ** ** This file may be used under the terms of the GNU General Public ** License version 2.0 as published by the Free Software Foundation ** and appearing in the file LICENSE.GPL included in the packaging of ** self file. Please review the following information to ensure GNU ** General Public Licensing requirements will be met: ** www.trolltech.com/products/qt/opensource.html ** ** If you are unsure which license is appropriate for your use, please ** review the following information: ** www.trolltech.com/products/qt/licensing.html or contact the ** sales department at sales@trolltech.com. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. **

** Translated to QtRuby by Richard Dale

end¶ ↑

Constants

NumModes
NumStates

Public Class Methods

new(parent = nil) click to toggle source

Calls superclass method

# File examples/widgets/icons/iconpreviewarea.rb, line 31
def initialize(parent = nil)
    super(parent)
    mainLayout = Qt::GridLayout.new
    setLayout(mainLayout)

    stateLabels = []
    stateLabels[0] = createHeaderLabel(tr("Off"))
    stateLabels[1] = createHeaderLabel(tr("On"))

    modeLabels = []
    modeLabels[0] = createHeaderLabel(tr("Normal"))
    modeLabels[1] = createHeaderLabel(tr("Active"))
    modeLabels[2] = createHeaderLabel(tr("Disabled"))

    (0...NumStates).each do |j|
        mainLayout.addWidget(stateLabels[j], j + 1, 0)
    end

    @pixmapLabels = []
    (0...NumModes).each do |i|
        mainLayout.addWidget(modeLabels[i], 0, i + 1)

        @pixmapLabels[i] = []
        (0...NumStates).each do |j|
            @pixmapLabels[i][j] = createPixmapLabel()
            mainLayout.addWidget(@pixmapLabels[i][j], j + 1, i + 1)
        end
    end

    @size = Qt::Size.new
            @icon = Qt::Icon.new
end

Public Instance Methods

createHeaderLabel(text) click to toggle source

# File examples/widgets/icons/iconpreviewarea.rb, line 76
def createHeaderLabel(text)
    label = Qt::Label.new(tr("<b>%s</b>" % text))
    label.alignment = Qt::AlignCenter.to_i
    return label
end

createPixmapLabel() click to toggle source

# File examples/widgets/icons/iconpreviewarea.rb, line 82
def createPixmapLabel()
    label = Qt::Label.new
    label.enabled = false
    label.alignment = Qt::AlignCenter.to_i
    label.frameShape = Qt::Frame::Box
    label.setSizePolicy(Qt::SizePolicy::Expanding, Qt::SizePolicy::Expanding)
    label.backgroundRole = Qt::Palette::Base
    label.setMinimumSize(132, 132)
    return label
end

icon=(icon) click to toggle source

# File examples/widgets/icons/iconpreviewarea.rb, line 64
def icon=(icon)
    @icon = icon
    updatePixmapLabels()
end

size=(size) click to toggle source

# File examples/widgets/icons/iconpreviewarea.rb, line 69
def size=(size)
    if size != @size
        @size = size
        updatePixmapLabels()
    end
end

updatePixmapLabels() click to toggle source

# File examples/widgets/icons/iconpreviewarea.rb, line 93
def updatePixmapLabels()
    (0...NumModes).each do |i|
        if i == 0
            mode = Qt::Icon::Normal
        elsif i == 1
            mode = Qt::Icon::Active
        else
            mode = Qt::Icon::Disabled
        end

        (0...NumStates).each do |j|
            state = (j == 0) ? Qt::Icon::Off : Qt::Icon::On
            pixmap = @icon.pixmap(@size, mode, state)
            @pixmapLabels[i][j].pixmap = pixmap
            @pixmapLabels[i][j].enabled = !pixmap.nil?
        end
    end
end