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424 lines
12 KiB
424 lines
12 KiB
#!/usr/bin/env python
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""" The PyKDE application sampler
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This module defines the top-level widgets for displaying the sampler
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application.
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"""
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import inspect
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import os
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import sys
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from qt import SIGNAL, SLOT, PYSIGNAL, TQt
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from qt import TQVBoxLayout, TQLabel, TQPixmap, TQSplitter, TQFrame, TQDialog
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from qt import TQSizePolicy, TQHBoxLayout, TQSpacerItem, TQPushButton
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from tdecore import i18n, KAboutData, KApplication, KCmdLineArgs, KGlobal
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from tdecore import KGlobalSettings, KWin, KWinModule, KURL, KIcon
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from tdeui import KComboBox, KListView, KListViewItem, KTabWidget, KTextEdit
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from tdeui import KMainWindow, KPushButton, KSplashScreen, KStdAction
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from tdeui import KKeyDialog, KEditToolbar
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from kio import KTrader
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from kparts import createReadOnlyPart, createReadWritePart
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from khtml import KHTMLPart
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import about
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import lib
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try:
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__file__
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except (NameError, ):
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__file__ = sys.argv[0]
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sigDoubleClicked = SIGNAL('doubleClicked(TQListViewItem *)')
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sigViewItemSelected = SIGNAL('selectionChanged(TQListViewItem *)')
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sigSampleSelected = PYSIGNAL('sample selected')
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blank = KURL('about:blank')
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def appConfig(group=None):
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""" appConfig(group=None) -> returns the application KConfig
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"""
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config = KGlobal.instance().config()
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if group is not None:
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config.setGroup(group)
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return config
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def getIcon(name, group=KIcon.NoGroup, size=KIcon.SizeSmall):
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""" returns a kde icon by name
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"""
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return KGlobal.instance().iconLoader().loadIcon(name, group, size)
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def getIconSet(name, group=KIcon.NoGroup, size=KIcon.SizeSmall):
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""" returns a kde icon set by name
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"""
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return KGlobal.instance().iconLoader().loadIconSet(name, group, size)
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def buildPart(parent, query, constraint, writable=False):
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""" builds the first available offered part on the parent
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"""
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offers = KTrader.self().query(query, constraint)
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for ptr in offers:
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if writable:
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builder = createReadWritePart
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else:
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builder = createReadOnlyPart
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part = builder(ptr.library(), parent, ptr.name())
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if part:
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break
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return part
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class CommonFrame(TQFrame):
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""" provides a modicum of reuse
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"""
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def __init__(self, parent):
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TQFrame.__init__(self, parent)
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layout = TQVBoxLayout(self)
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layout.setAutoAdd(True)
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layout.setAlignment(TQt.AlignCenter | TQt.AlignVCenter)
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class SamplerFrame(CommonFrame):
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""" frame type that swaps out old widgets for new when told to do so
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"""
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def __init__(self, parent):
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CommonFrame.__init__(self, parent)
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self.widget = None
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def setWidget(self, widget):
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self.layout().deleteAllItems()
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previous = self.widget
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if previous:
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previous.close()
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delattr(self, 'widget')
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self.widget = widget
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def showSample(self, item, module):
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try:
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frameType = module.builder()
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except (AttributeError, ):
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print 'No sample callable defined in %s' % (module.name(), )
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else:
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frame = frameType(self)
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self.setWidget(frame)
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frame.show()
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class SourceFrame(CommonFrame):
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""" frame with part for displaying python source
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"""
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def __init__(self, parent):
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CommonFrame.__init__(self, parent)
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query = ''
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self.part = buildPart(self, 'application/x-python', query, False)
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def showModuleSource(self, item, module):
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if not self.part:
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print 'No part available for displaying python source.'
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return
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try:
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modulefile = inspect.getabsfile(module.module)
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except:
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return
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self.part.openURL(blank)
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if os.path.splitext(modulefile)[-1] == '.py':
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self.part.openURL(KURL('file://%s' % modulefile))
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class WebFrame(CommonFrame):
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""" frame with part for viewing web pages
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"""
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docBase = 'http://www.riverbankcomputing.com/Docs/PyKDE3/classref/'
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def __init__(self, parent):
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CommonFrame.__init__(self, parent)
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self.part = part = buildPart(self, 'text/html', "Type == 'Service'")
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#part.connect(part, SIGNAL('khtmlMousePressEvent(a)'), self.onURL)
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def onURL(self, a):
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print '****', a
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def showDocs(self, item, module):
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try:
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mod, cls = module.module.docParts
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except (AttributeError, ):
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url = blank
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else:
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url = KURL(self.docUrl(mod, cls))
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self.part.openURL(url)
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def docUrl(self, module, klass):
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""" docUrl(name) -> return a doc url given a name from the kde libs
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"""
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return '%s/%s/%s.html' % (self.docBase, module, klass, )
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class OutputFrame(KTextEdit):
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""" text widget that acts (just enough) like a file
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"""
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def __init__(self, parent, filehandle):
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KTextEdit.__init__(self, parent)
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self.filehandle = filehandle
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self.setReadOnly(True)
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self.setFont(KGlobalSettings.fixedFont())
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def write(self, text):
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self.insert(text)
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def clear(self):
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self.setText('')
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def __getattr__(self, name):
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return getattr(self.filehandle, name)
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class SamplerListView(KListView):
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""" the main list view of samples
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"""
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def __init__(self, parent):
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KListView.__init__(self, parent)
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self.addColumn(i18n('Sample'))
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self.setRootIsDecorated(True)
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modules = lib.listmodules()
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modules.sort(lambda a, b: cmp(a[0], b[0]))
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modmap = dict(modules)
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modules = [(name.split('.'), name, mod) for name, mod in modules]
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roots, cache = {}, {}
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for names, modname, module in modules:
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topname, subnames = names[0], names[1:]
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item = roots.get(topname, None)
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if item is None:
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roots[topname] = item = KListViewItem(self, module.labelText())
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item.module = module
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item.setPixmap(0, getIcon(module.icon()))
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bname = ''
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subitem = item
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for subname in subnames:
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bname = '%s.%s' % (bname, subname, )
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item = cache.get(bname, None)
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if item is None:
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subitem = cache[bname] = \
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KListViewItem(subitem, module.labelText())
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subitem.module = module
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subitem.setPixmap(0, getIcon(module.icon()))
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subitem = item
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for root in roots.values():
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self.setOpen(root, True)
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class SamplerMainWindow(KMainWindow):
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""" the main window
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"""
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def __init__(self, *args):
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KMainWindow.__init__(self, *args)
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self.hSplitter = hSplit = TQSplitter(TQt.Horizontal, self)
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self.samplesList = samplesList = SamplerListView(hSplit)
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self.vSplitter = vSplit = TQSplitter(TQt.Vertical, hSplit)
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self.setCentralWidget(hSplit)
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self.setIcon(getIcon('kmail'))
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hSplit.setOpaqueResize(True)
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vSplit.setOpaqueResize(True)
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self.contentTabs = cTabs = KTabWidget(vSplit)
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self.outputTabs = oTabs = KTabWidget(vSplit)
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self.sampleFrame = SamplerFrame(cTabs)
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self.sourceFrame = SourceFrame(cTabs)
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self.webFrame = WebFrame(cTabs)
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cTabs.insertTab(self.sampleFrame, getIconSet('exec'), i18n('Sample'))
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cTabs.insertTab(self.sourceFrame, getIconSet('source'), i18n('Source'))
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cTabs.insertTab(self.webFrame, getIconSet('help'), i18n('Docs'))
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sys.stdout = self.stdoutFrame = OutputFrame(oTabs, sys.stdout)
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sys.stderr = self.stderrFrame = OutputFrame(oTabs, sys.stderr)
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termIcons = getIconSet('terminal')
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oTabs.insertTab(self.stdoutFrame, termIcons, i18n('stdout'))
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oTabs.insertTab(self.stderrFrame, termIcons, i18n('stderr'))
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self.resize(640, 480)
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height, width = self.height(), self.width()
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hSplit.setSizes([width * 0.35, width * 0.65])
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vSplit.setSizes([height * 0.80, height * 0.20])
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self.xmlRcFileName = os.path.abspath(os.path.join(os.path.dirname(__file__), 'sampler.rc'))
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self.setXMLFile(self.xmlRcFileName)
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config = appConfig()
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actions = self.actionCollection()
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actions.readShortcutSettings("", config)
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self.quitAction = KStdAction.quit(self.close, actions)
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self.toggleMenubarAction = \
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KStdAction.showMenubar(self.showMenubar, actions)
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self.toggleToolbarAction = \
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KStdAction.showToolbar(self.showToolbar, actions)
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self.toggleStatusbarAction = \
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KStdAction.showStatusbar(self.showStatusbar, actions)
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self.configureKeysAction = \
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KStdAction.keyBindings(self.showConfigureKeys, actions)
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self.configureToolbarAction = \
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KStdAction.configureToolbars(self.showConfigureToolbars, actions)
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self.configureAppAction = \
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KStdAction.preferences(self.showConfiguration, actions)
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connect = self.connect
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connect(samplesList, sigViewItemSelected, self.sampleSelected)
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connect(self, sigSampleSelected, self.reloadModule)
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connect(self, sigSampleSelected, self.sourceFrame.showModuleSource)
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connect(self, sigSampleSelected, self.sampleFrame.showSample)
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connect(self, sigSampleSelected, self.webFrame.showDocs)
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self.restoreWindowSize(config)
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self.createGUI(self.xmlRcFileName, 0)
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self.sourceFrame.part.openURL(KURL('file://%s' % os.path.abspath(__file__)))
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def showConfiguration(self):
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""" showConfiguration() -> display the config dialog
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"""
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return
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## not yet implemented
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dlg = configdialog.ConfigurationDialog(self)
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for obj in (self.stderrFrame, self.stdoutFrame, self.pythonShell):
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call = getattr(obj, 'configChanged', None)
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if call:
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self.connect(dlg, util.sigConfigChanged, call)
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dlg.show()
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def senderCheckShow(self, widget):
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""" senderCheckShow(widget) -> show or hide widget if sender is checked
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"""
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if self.sender().isChecked():
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widget.show()
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else:
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widget.hide()
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def showMenubar(self):
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""" showMenuBar() -> toggle the menu bar
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"""
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self.senderCheckShow(self.menuBar())
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def showToolbar(self):
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""" showToolbar() -> toggle the tool bar
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"""
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self.senderCheckShow(self.toolBar())
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def showStatusbar(self):
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""" showStatusbar() -> toggle the status bar
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"""
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self.senderCheckShow(self.statusBar())
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def showConfigureKeys(self):
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""" showConfigureKeys() -> show the shortcut keys dialog
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"""
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ret = KKeyDialog.configure(self.actionCollection(), self)
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print ret
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if ret == TQDialog.Accepted:
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actions = self.actionCollection()
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actions.writeShortcutSettings(None, appConfig())
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def showConfigureToolbars(self):
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""" showConfigureToolbars() -> broken
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"""
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dlg = KEditToolbar(self.actionCollection(), self.xmlRcFileName)
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self.connect(dlg, SIGNAL('newToolbarConfig()'), self.rebuildGui)
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#connect(self, sigSampleSelected, self.sourceFrame.showModuleSource)
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dlg.exec_loop()
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def rebuildGui(self):
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""" rebuildGui() -> recreate the gui and refresh the palette
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"""
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self.createGUI(self.xmlRcFileName, 0)
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for widget in (self.toolBar(), self.menuBar(), ):
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widget.setPalette(self.palette())
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def sampleSelected(self):
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""" sampleSelected() -> emit the current item and its module
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"""
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self.stdoutFrame.clear()
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self.stderrFrame.clear()
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item = self.sender().currentItem()
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self.emit(sigSampleSelected, (item, item.module))
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def setSplashPixmap(self, pixmap):
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""" setSplashPixmap(pixmap) -> assimilate the splash screen pixmap
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"""
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target = self.sampleFrame
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label = TQLabel(target)
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label.setPixmap(pixmap)
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target.setWidget(label)
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def reloadModule(self, item, module):
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print >> sys.__stdout__, 'reload: ', reload(module.module)
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if __name__ == '__main__':
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aboutdata = about.about()
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KCmdLineArgs.init(sys.argv, aboutdata)
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app = KApplication()
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splashpix = TQPixmap(os.path.join(lib.samplerpath, 'aboutkde.png'))
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splash = KSplashScreen(splashpix)
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splash.resize(splashpix.size())
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splash.show()
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mainWindow = SamplerMainWindow()
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mainWindow.setSplashPixmap(splashpix)
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mainWindow.show()
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splash.finish(mainWindow)
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app.exec_loop()
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