Class: XbelTree

Inherits:
Qt::TreeWidget show all
Defined in:
ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb

Constant Summary collapse

IndentSize = 
4

Instance Method Summary collapse

Methods inherited from Qt::TreeWidget

#each

Methods inherited from Qt::Base

#%, #&, #*, #**, #+, #-, #-@, #/, #<, #<<, #<=, #==, #>, #>=, #>>, #QCOMPARE, #QEXPECT_FAIL, #QFAIL, #QSKIP, #QTEST, #QVERIFY, #QVERIFY2, #QWARN, #^, ancestors, #is_a?, #methods, private_slots, #protected_methods, #public_methods, q_classinfo, q_signal, q_slot, signals, #singleton_methods, slots, #|, #~

Constructor Details

#initialize(parent = nil) ⇒ XbelTree

Returns a new instance of XbelTree.



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 34

def initialize(parent = nil)
    super(parent)
    labels = []
    labels << tr("Title") << tr("Location")

    header().resizeMode = Qt::HeaderView::Stretch
    setHeaderLabels(labels)

	@folderIcon = Qt::Icon.new
    @folderIcon.addPixmap(style().standardPixmap(Qt::Style::SP_DirClosedIcon),
                         Qt::Icon::Normal, Qt::Icon::Off)
    @folderIcon.addPixmap(style().standardPixmap(Qt::Style::SP_DirOpenIcon),
                         Qt::Icon::Normal, Qt::Icon::On)
	@bookmarkIcon = Qt::Icon.new
    @bookmarkIcon.addPixmap(style().standardPixmap(Qt::Style::SP_FileIcon))

	@domElementForItem = {}
	@domDocument = Qt::DomDocument.new
end

Instance Method Details

#createItem(element, parentItem) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 163

def createItem(element, parentItem)
    if !parentItem.nil?
        item = Qt::TreeWidgetItem.new(parentItem, Qt::TreeWidgetItem::Type)
    else
        item = Qt::TreeWidgetItem.new(self)
    end
    @domElementForItem[item] = element
    return item
end

#parseFolderElement(element, parentItem = nil) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 122

def parseFolderElement(element, parentItem = nil)
    item = createItem(element, parentItem)

    title = element.firstChildElement("title").text()
    if title.nil?
        title = Qt::Object.tr("Folder")
	end

    item.flags = item.flags | Qt::ItemIsEditable.to_i
    item.setIcon(0, @folderIcon)
    item.setText(0, title)

    folded = (element.attribute("folded") != "no")
    setItemExpanded(item, !folded)

    child = element.firstChildElement()
    while !child.null?
        if child.tagName() == "folder"
            parseFolderElement(child, item)
        elsif child.tagName() == "bookmark"
            childItem = createItem(child, item)

            title = child.firstChildElement("title").text()
            if title.empty?
                title = Qt::Object.tr("Folder")
			end

            childItem.flags = item.flags | Qt::ItemIsEditable.to_i
            childItem.setIcon(0, @bookmarkIcon)
            childItem.setText(0, title)
            childItem.setText(1, child.attribute("href"))
        elsif child.tagName() == "separator"
            childItem = createItem(child, item)
            childItem.flags = item.flags & ~(Qt::ItemIsSelectable.to_i | Qt::ItemIsEditable.to_i)
#	            childItem.setText(0, Qt::String(30, 0xB7))
            childItem.setText(0, "..............................")
        end
        child = child.nextSiblingElement()
    end
end

#read(device) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 54

def read(device)
    errorStr = ""
    errorLine = Qt::Integer.new
    errorColumn = Qt::Integer.new

    if !@domDocument.setContent(device, true, errorStr, errorLine,
                                errorColumn)
        Qt::MessageBox.information(window(), tr("DOM Bookmarks"),
                                 tr("Parse error at line %d, column %d:\n%s" %
                                 [errorLine, errorColumn, errorStr]))
        return false
    end

    root = @domDocument.documentElement()
    if root.tagName() != "xbel"
        Qt::MessageBox.information(window(), tr("DOM Bookmarks"),
                                 tr("The file is not an XBEL file."))
        return false
    elsif root.hasAttribute("version") &&
               root.attribute("version") != "1.0"
        Qt::MessageBox.information(window(), tr("DOM Bookmarks"),
                                 tr("The file is not an XBEL version 1.0 " \
                                    "file."))
        return false
    end

    clear()

    disconnect(self, SIGNAL('itemChanged(QTreeWidgetItem *, int)'),
               self, SLOT('updateDomElement(QTreeWidgetItem *, int)'))

    child = root.firstChildElement("folder")
    while !child.null?
        parseFolderElement(child)
        child = child.nextSiblingElement("folder")
    end

    connect(self, SIGNAL('itemChanged(QTreeWidgetItem *, int)'),
            self, SLOT('updateDomElement(QTreeWidgetItem *, int)'))

    return true
end

#updateDomElement(item, column) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 103

def updateDomElement(item, column)
    element = @domElementForItem[item]
    if !element.nil?
        if column == 0
            oldTitleElement = element.firstChildElement("title")
            newTitleElement = @domDocument.createElement("title")

            newTitleText = @domDocument.createTextNode(item.text(0))
            newTitleElement.appendChild(newTitleText)

            element.replaceChild(newTitleElement, oldTitleElement)
        else
            if element.tagName == "bookmark"
                element.setAttribute("href", item.text(1))
			end
        end
    end
end

#write(device) ⇒ Object 



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# File 'ext/ruby/qtruby/examples/xml/dombookmarks/xbeltree.rb', line 97

def write(device)
    outf = Qt::TextStream.new(device)
    @domDocument.save(outf, IndentSize)
    return true
end