Class: BorderLayout

Inherits:
Qt::Layout
  • Object
show all
Defined in:
ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb

Defined Under Namespace

Classes: ItemWrapper

Constant Summary collapse

West = 
0
North = 
1
South = 
2
East = 
3
Center = 
4
MinimumSize = 
0
SizeHint = 
1

Instance Method Summary collapse

Constructor Details

#initialize(parent = nil, margin = 0, spacing = -1)) ⇒ BorderLayout

Returns a new instance of BorderLayout.



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 39

def initialize(parent = nil, margin = 0, spacing = -1)
	@list = []
    super(parent)
    setMargin(margin)
    setSpacing(spacing)
end

Instance Method Details

#add(item, position) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 163

def add(item, position)
    @list << ItemWrapper.new(item, position)
end

#addItem(item) ⇒ Object

def initialize(spacing)

setSpacing(spacing)

end



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 50

def addItem(item)
    add(item, West)
end

#addWidget(widget, position) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 54

def addWidget(widget, position)
    add(Qt::WidgetItem.new(widget), position)
end

#calculateSize(sizeType) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 167

def calculateSize(sizeType)
    totalSize = Qt::Size.new

	(0...@list.length).each do |i|
        wrapper = @list[i]
        position = wrapper.position

        if sizeType == MinimumSize
            itemSize = wrapper.item.minimumSize
        else # (sizeType == SizeHint)
            itemSize = wrapper.item.sizeHint
		end

        if position == North || position == South || position == Center
            totalSize.height += itemSize.height
		end

        if position == West || position == East || position == Center
            totalSize.width += itemSize.width
		end
    end
    return totalSize
end

#count ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 66

def count()
    return @list.length()
end

#expandingDirections ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 58

def expandingDirections()
    return Qt::Horizontal | Qt::Vertical
end

#hasHeightForWidth ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 62

def hasHeightForWidth()
    return false
end

#itemAt(index) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 70

def itemAt(index)
    wrapper = @list[index]
    if !wrapper.nil?
        return wrapper.item
    else
        return nil
	end
end

#minimumSize ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 79

def minimumSize()
    return calculateSize(MinimumSize)
end

#setGeometry(rect) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 83

def setGeometry(rect)
    center = 0
    eastWidth = 0
    westWidth = 0
    northHeight = 0
    southHeight = 0
    centerHeight = 0

    super(rect)

	(0...@list.length).each do |i|
        wrapper = @list[i]
        item = wrapper.item
        position = wrapper.position

        if position == North
            item.geometry = Qt::Rect.new(rect.x, northHeight, rect.width,
                                    item.sizeHint.height)

            northHeight += item.geometry.height + spacing()
        elsif position == South
            item.geometry = Qt::Rect.new(item.geometry.x,
                                    item.geometry.y, rect.width,
                                    item.sizeHint.height)

            southHeight += item.geometry().height() + spacing()

            item.geometry = Qt::Rect.new(rect.x,
                              rect.y + rect.height - southHeight + spacing(),
                              item.geometry.width,
                              item.geometry.height)
        elsif position == Center
            center = wrapper
        end
    end

    centerHeight = rect.height() - northHeight - southHeight

	(0...@list.length).each do |i|
        wrapper = @list[i]
        item = wrapper.item
        position = wrapper.position

        if position == West
            item.geometry = Qt::Rect.new(rect.x + westWidth, northHeight,
                                    item.sizeHint.width, centerHeight)

            westWidth += item.geometry.width + spacing()
        elsif position == East
            item.geometry = Qt::Rect.new(item.geometry.x, item.geometry.y,
                                    item.sizeHint.width, centerHeight)

            eastWidth += item.geometry.width + spacing()

            item.geometry = Qt::Rect.new(
                              rect.x + rect.width - eastWidth + spacing,
                              northHeight, item.geometry.width,
                              item.geometry.height)
        end
    end

    if !center.nil?
        center.item.geometry = Qt::Rect.new(westWidth, northHeight,
                                        rect.width - eastWidth - westWidth,
                                        centerHeight)
	end
end

#sizeHint ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 151

def sizeHint()
    return calculateSize(SizeHint)
end

#takeAt(index) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/layouts/borderlayout/borderlayout.rb', line 155

def takeAt(index)
    if index >= 0 && index < @list.length()
        layoutStruct = @list.delete_at(index)
        return layoutStruct.item
    end
    return nil
end