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=begin
This is a ruby version of Jim Bublitz's python original. The ruby behaviour
is 'crash for crash' identical - so the the problems described below are
related to KMDI, and not the bindings.
=end
=begin
A rough Python translation of the ideas presented in this KMDI tutorial:
http://web.tiscali.it/andreabergia/tdemditutorial.html
What does work:
IDEAlMode - yay!
Adding and closing child views
Two-way syncing between a tool widget and a matching child view
All is not rosy, however:
Instances of the KmdiExample maintain a dictionary of child views. Values
cannot be deleted from this dictionary during a window close (causes an
immediate segfault).
Child views created after initialization aren't numbered correctly; given
the first problem, it's harder to do this than it's really worth.
The example segfaults at shutdown if the tool (on the left) is is open but
is not in overlap-mode.
=end
require 'Korundum'
include KDE
class KmdiExample < KDE::MdiMainFrm
slots 'closeChild(KMdiChildView*)',
'syncFromChildView(KMdiChildView*)',
'syncFromMainTool(TQListBoxItem*)',
'activatedMessage(KMdiChildView*)',
'newView()', 'close()', 'closeActiveChild()'
def getIcon(name, group=Icon::NoGroup, size=Icon::SizeSmall)
# returns a kde icon by name
return Global.instance().iconLoader().loadIcon(name, group, size)
end
def initialize(parent=nil)
super(parent, 'KmdiExample', Mdi::IDEAlMode)
@viewIcons = ['network', 'email', 'stop', 'back', 'forward']
@toolIcons = ['view_icon', 'configure']
openNewAction = StdAction.openNew(self, SLOT('newView()'), actionCollection())
quitAction = StdAction.quit(self, SLOT('close()'), actionCollection())
closeAction = StdAction.close(self, SLOT('closeActiveChild()'), actionCollection())
uifilebase = Dir.getwd + '/uitdemdi.rc'
createGUI(uifilebase)
# The task bar is created in the KMdiMainFrm constructor
# and then deleted in the createGUI() call above..
# So recreate it again to avoid a crash.
createTaskBar()
statusBar()
resize(400, 300)
@tools = {}
@toolIcons.each_index do |idx|
ico = @toolIcons[idx]
wid = KDE::ListBox.new(self, "list#{idx.to_s}")
makeTool(wid, "Tool #{idx.to_s}", ico)
end
## smells
@mainToolWidget = @maintool = @tools['Tool 0'][0]
@childs = {}
@viewIcons.each_index do |idx|
ico = @viewIcons[idx]
makeView("View #{idx.to_s}", ico, ico)
end
connect(self, SIGNAL('viewActivated(KMdiChildView*)'), self, SLOT('activatedMessage(KMdiChildView*)'))
connect(self, SIGNAL('viewActivated(KMdiChildView*)'), self, SLOT('syncFromChildView(KMdiChildView*)'))
connect(@maintool, SIGNAL('selectionChanged(TQListBoxItem*)'), self, SLOT('syncFromMainTool(TQListBoxItem*)'))
syncFromChildView(activeWindow())
end
def syncFromMainTool(item)
# activate the view that matches the item text
activateView(findWindow(item.text()))
end
def syncFromChildView(child)
# sync the main tool to the indicated child
@maintool = @mainToolWidget
if child.nil?
return
end
item = @maintool.findItem(child.tabCaption())
if !item.nil?
@maintool.setSelected(item, nil)
end
end
def makeTool(widget, caption, icon, percent=50)
# makes a tool from the widget
tip = i18n("#{caption} Tool Tip")
dock = DockWidget::DockLeft
maindock = getMainDockWidget()
widget.setIcon(getIcon(icon))
tool = addToolWindow(widget, dock, maindock, percent, tip, caption)
@tools[caption] = [widget, tool]
end
def makeView(label, icon, text)
# makes a child view with a text label and a pixmap label
view = MdiChildView.new(label, self)
@childs[label] = view
view.setIcon(getIcon(icon))
layout = TQt::VBoxLayout.new(view)
layout.setAutoAdd(true)
lbl = TQt::Label.new(i18n("Label for a view with an icon named #{text}"), view)
pxm = TQt::Label.new('', view)
pxm.setPixmap(getIcon(icon, Icon::NoGroup, KDE::Icon::SizeLarge))
addWindow(view)
@mainToolWidget.insertItem(label)
connect(view, SIGNAL('childWindowCloseRequest(KMdiChildView*)'), self, SLOT('closeChild(KMdiChildView*)'))
end
def removeMainToolItem(view)
# remove item from the main list tool that corresponds to the view
@maintool = @mainToolWidget
@maintool.takeItem(@maintool.findItem(view.tabCaption(), 0))
end
def newView()
# make a view when the user invokes the new action
makeView("View ", 'network', 'A Fresh View')
# makeView("View #{@childs.length}", 'network', 'A Fresh View')
syncFromChildView(activeWindow())
end
def closeActiveChild()
# close the current view
removeMainToolItem(activeWindow())
closeActiveView()
syncFromChildView(activeWindow())
end
def closeChild(which)
# called to close a view from its tab close button
caption = which.tabCaption()
removeMainToolItem(which)
which.close()
statusBar().message(i18n("#{caption} closed"))
syncFromChildView(activeWindow())
end
def activatedMessage(view)
# updates the status bar with the caption of the current view
statusBar().message(i18n("#{view.tabCaption()} activated"))
end
end
if $0 == __FILE__
aname = 'uitdemdi'
desc = 'A Simple Korundum KMDI Sample'
ver = '1.0'
lic = AboutData::License_GPL
author = 'Troy Melhase'
authormail = 'troy@gci.net'
about = AboutData.new(aname, aname, ver, desc, lic, "#{authormail} (c) 2004")
about.addAuthor(author, 'hi, mom!', authormail)
about.addAuthor('Jim Bublitz', 'For PyKDE', 'jbublitz@nwinternet.com')
about.addAuthor('Richard Dale', 'For Korundum', 'Richard_Dale@tipitina.demon.co.uk')
CmdLineArgs.init(ARGV, about)
app = KDE::Application.new
mainWindow = KmdiExample.new
mainWindow.show
app.exec
end
|
