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+#!/usr/bin/env python
+"""
+This is 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.
+
+"""
+import os
+import sys
+
+from qt import SIGNAL, TQVBoxLayout, TQLabel
+from tdecore import i18n, TDEAboutData, TDEApplication, TDEGlobal, KIcon, TDECmdLineArgs
+from tdeui import KDockWidget, KListBox, KStdAction
+
+try:
+ from tdemdi import KMdi, KMdiMainFrm, KMdiChildView
+except (ImportError, ):
+ print 'Exception importing KMDI; check your PyKDE installation'
+ sys.exit(1)
+
+
+sigChildCloseRequest = SIGNAL('childWindowCloseRequest(KMdiChildView *)')
+sigChildViewActivated = SIGNAL('viewActivated(KMdiChildView *)')
+sigBoxSelectionChanged = SIGNAL('selectionChanged(TQListBoxItem *)')
+
+
+def getIcon(name, group=KIcon.NoGroup, size=KIcon.SizeSmall):
+ """ returns a kde icon by name
+
+ """
+ return TDEGlobal.instance().iconLoader().loadIcon(name, group, size)
+
+
+class KmdiExample(KMdiMainFrm):
+ """ KmdiExample(parent=None) -> an example KMdiMainFrm window
+
+ """
+ uifilebase = 'uitdemdi.rc'
+ viewIcons = ('network', 'email', 'stop', 'back', 'forward', )
+ toolIcons = ('view_icon', 'configure')
+
+ def __init__(self, parent=None):
+ KMdiMainFrm.__init__(self, parent, 'KmdiExample', KMdi.IDEAlMode)
+
+ xmlfile = os.path.join('.', self.uifilebase)
+ self.setXMLFile(os.path.abspath(xmlfile))
+ actions = self.actionCollection()
+ self.openNewAction = KStdAction.openNew(self.newView, actions)
+ self.quitAction = KStdAction.quit(self.close, actions)
+ self.closeAction = KStdAction.close(self.closeActiveChild, actions)
+ self.createGUI(None)
+ self.statusBar()
+ self.resize(400, 300)
+
+ self.tools = {}
+ for idx, ico in enumerate(self.toolIcons):
+ wid = KListBox(self, 'list%s' % idx)
+ self.makeTool(wid, 'Tool %s' % idx, ico)
+ ## smells
+ self.mainToolWidget = maintool = self.tools['Tool 0'][0]
+
+ self.childs = {}
+ for idx, ico in enumerate(self.viewIcons):
+ self.makeView('View %s' % idx, ico, ico)
+
+
+ self.connect(self, sigChildViewActivated, self.activatedMessage)
+ self.connect(self, sigChildViewActivated, self.syncFromChildView)
+ self.connect(maintool, sigBoxSelectionChanged, self.syncFromMainTool)
+ self.syncFromChildView(self.activeWindow())
+
+
+ def syncFromMainTool(self, item):
+ """ activate the view that matches the item text
+
+ """
+ try:
+ self.activateView(self.findWindow(item.text()))
+ except (RuntimeError, ):
+ pass
+
+ def syncFromChildView(self, child):
+ """ sync the main tool to the indicated child
+
+ """
+ maintool = self.mainToolWidget
+ item = maintool.findItem(child.tabCaption())
+ if item:
+ maintool.setSelected(item, True)
+
+ def makeTool(self, widget, caption, icon, percent=50):
+ """ makes a tool from the widget
+
+ """
+ tip = i18n('%s Tool Tip' % caption)
+ dock = KDockWidget.DockLeft
+ maindock = self.getMainDockWidget()
+ widget.setIcon(getIcon(icon))
+ tool = self.addToolWindow(widget, dock, maindock, percent, tip, caption)
+ self.tools[caption] = (widget, tool)
+
+ def makeView(self, label, icon, text):
+ """ makes a child view with a text label and a pixmap label
+
+ """
+ view = KMdiChildView(label, self)
+ self.childs[label] = view
+ view.setIcon(getIcon(icon))
+ layout = TQVBoxLayout(view)
+ layout.setAutoAdd(True)
+
+ lbl = i18n('Label for a view with an icon named %s' % text)
+ lbl = TQLabel(lbl, view)
+ pxm = TQLabel('', view)
+ pxm.setPixmap(getIcon(icon, size=KIcon.SizeLarge))
+
+ self.addWindow(view)
+ self.mainToolWidget.insertItem(label)
+ self.connect(view, sigChildCloseRequest, self.closeChild)
+
+ def removeMainToolItem(self, view):
+ """ remove item from the main list tool that corresponds to the view
+
+ """
+ maintool = self.mainToolWidget
+ maintool.takeItem(maintool.findItem(view.tabCaption(), 0))
+
+ def newView(self):
+ """ make a view when the user invokes the new action
+
+ """
+ self.makeView('View %s' % len(self.childs), 'network', 'A Fresh View')
+ self.syncFromChildView(self.activeWindow())
+
+ def closeActiveChild(self):
+ """ close the current view
+
+ """
+ self.removeMainToolItem(self.activeWindow())
+ self.closeActiveView()
+ self.syncFromChildView(self.activeWindow())
+
+ def closeChild(self, which):
+ """ called to close a view from its tab close button
+
+ """
+ try:
+ caption = which.tabCaption()
+ except (AttributeError, ):
+ ## probably None; bug in tdemdi?
+ return
+ self.removeMainToolItem(which)
+ which.close()
+ self.statusBar().message(i18n('%s closed' % caption))
+ self.syncFromChildView(self.activeWindow())
+
+ def activatedMessage(self, view):
+ """ updates the status bar with the caption of the current view
+
+ """
+ try:
+ self.statusBar().message(i18n('%s activated' % view.tabCaption()))
+ except (RuntimeError, ):
+ ## sometimes the status bar or the current object is already gone...
+ pass
+
+
+if __name__ == '__main__':
+ aname = 'PyKDE KMDI Sample'
+ desc = 'A Simple PyKDE KMDI Sample'
+ ver = '1.0'
+ lic = TDEAboutData.License_GPL
+ author = 'Troy Melhase'
+ authormail = 'troy@gci.net'
+
+ about = TDEAboutData(aname, aname, ver, desc, lic, '%s (c) 2004' % authormail)
+ about.addAuthor(author, 'hi, mom!', authormail)
+ about.addAuthor ('Jim Bublitz', 'For PyKDE', 'jbublitz@nwinternet.com')
+ TDECmdLineArgs.init(sys.argv, about)
+ app = TDEApplication()
+ mainWindow = KmdiExample()
+ mainWindow.show()
+ app.exec_loop()