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104 lines
3.3 KiB
104 lines
3.3 KiB
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=begin
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This is the main view class for %{APPNAME}. Most of the non-menu,
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non-toolbar, and non-statusbar (e.g., non frame) GUI code should go
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here.
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This %{APPNAMELC} uses an HTML component as an example.
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@short Main view
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@author %{AUTHOR} <%{EMAIL}>
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@version %{VERSION}
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=end
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class %{APPNAMESC}View < Qt::Widget
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#
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# Use this signal to change the content of the statusbar
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#
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Q_SIGNALS 'signalChangeStatusbar(const QString&)'
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#
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# Use this signal to change the content of the caption
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#
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Q_SIGNALS 'signalChangeCaption(const QString&)'
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Q_SLOTS 'slotOnURL(const QString&)',
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'slotSetTitle(const QString&)'
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def initialize(parent)
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super(parent)
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# keep a reference to the DCOP Interface so it doesn't get gc'd
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@dcop = %{APPNAMESC}Iface.new(self)
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# setup our tqlayout manager to automatically add our widgets
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top_layout = Qt::HBoxLayout.new(self)
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top_layout.setAutoAdd(true)
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# we want to look for all components that satisfy our needs. the
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# trader will actually search through *all* registered KDE
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# applications and components -- not just KParts. So we have to
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# specify two things: a service type and a constraint
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#
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# the service type is like a mime type. we say that we want all
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# applications and components that can handle HTML -- 'text/html'
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#
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# however, by itself, this will return such things as Netscape..
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# not what we wanted. so we constrain it by saying that the
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# string 'KParts/ReadOnlyPart' must be found in the ServiceTypes
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# field. with this, only components of the type we want will be
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# returned.
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offers = KDE::Trader.self().query("text/html", "'KParts/ReadOnlyPart' in ServiceTypes")
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factory = nil
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# in theory, we only care about the first one.. but let's try all
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# offers just in when the first can't be loaded for some reason
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offers.each do |ptr|
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# we now know that our offer can handle HTML and is a part.
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# since it is a part, it must also have a library... let's try to
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# load that now
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factory = KDE::LibLoader.self().factory( ptr.library() )
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if ! factory.nil?
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@html = factory.create(self, ptr.name(), "KParts::ReadOnlyPart")
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break
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end
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end
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# if our factory is invalid, then we never found our component
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# and we might as well just exit now
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if factory.nil?
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KDE::MessageBox.error(self, i18n("Could not find a suitable HTML component"))
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return
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end
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connect(@html, SIGNAL('setWindowCaption(const QString&)'),
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self, SLOT('slotSetTitle(const QString&)'))
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connect(@html, SIGNAL('setStatusBarText(const QString&)'),
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self, SLOT('slotOnURL(const QString&)'))
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end
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def print(p, height, width)
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# do the actual printing, here
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# p.drawText(etc..)
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end
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def currentURL()
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return @html.url().url()
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end
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def openURL(url)
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@html.openURL(KDE::URL.new(url))
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end
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def slotOnURL(url)
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emit signalChangeStatusbar(url)
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end
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def slotSetTitle(title)
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emit signalChangeCaption(title)
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end
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end
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