Project/ProjectResourcesBrowser.py

changeset 0
de9c2efb9d02
child 12
1d8dd9706f46
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Project/ProjectResourcesBrowser.py	Mon Dec 28 16:03:33 2009 +0000
@@ -0,0 +1,816 @@
+# -*- coding: utf-8 -*-
+
+# Copyright (c) 2002 - 2009 Detlev Offenbach <detlev@die-offenbachs.de>
+#
+
+"""
+Module implementing a class used to display the resources part of the project.
+"""
+
+import os
+import sys
+import shutil
+
+from PyQt4.QtCore import *
+from PyQt4.QtGui import *
+
+from E4Gui.E4Application import e4App
+
+from ProjectBrowserModel import ProjectBrowserFileItem, \
+    ProjectBrowserSimpleDirectoryItem, ProjectBrowserDirectoryItem, \
+    ProjectBrowserResourceType
+from ProjectBaseBrowser import ProjectBaseBrowser
+
+from UI.DeleteFilesConfirmationDialog import DeleteFilesConfirmationDialog
+import UI.PixmapCache
+
+import Preferences
+import Utilities
+
+from eric4config import getConfig
+
+class ProjectResourcesBrowser(ProjectBaseBrowser):
+    """
+    A class used to display the resources part of the project. 
+    
+    @signal appendStderr(string) emitted after something was received from
+            a QProcess on stderr
+    @signal sourceFile(string) emitted to open a resources file in an editor
+    @signal closeSourceWindow(string) emitted after a file has been removed/deleted 
+            from the project
+    @signal showMenu(string, QMenu) emitted when a menu is about to be shown. The name
+            of the menu and a reference to the menu are given.
+    """
+    RCFilenameFormatPython = "%s_rc.py"
+    RCFilenameFormatRuby = "%s_rc.rb"
+    
+    def __init__(self, project, parent = None):
+        """
+        Constructor
+        
+        @param project reference to the project object
+        @param parent parent widget of this browser (QWidget)
+        """
+        ProjectBaseBrowser.__init__(self, project, ProjectBrowserResourceType, parent)
+        
+        self.selectedItemsFilter = \
+            [ProjectBrowserFileItem, ProjectBrowserSimpleDirectoryItem]
+        
+        self.setWindowTitle(self.trUtf8('Resources'))
+
+        self.setWhatsThis(self.trUtf8(
+            """<b>Project Resources Browser</b>"""
+            """<p>This allows to easily see all resources contained in the current"""
+            """ project. Several actions can be executed via the context menu.</p>"""
+        ))
+        
+        self.compileProc = None
+        
+    def _createPopupMenus(self):
+        """
+        Protected overloaded method to generate the popup menu.
+        """
+        self.menuActions = []
+        self.multiMenuActions = []
+        self.dirMenuActions = []
+        self.dirMultiMenuActions = []
+        
+        self.menu = QMenu(self)
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            self.menu.addAction(self.trUtf8('Compile resource'), 
+                self.__compileResource)
+            self.menu.addAction(self.trUtf8('Compile all resources'), 
+                self.__compileAllResources)
+            self.menu.addSeparator()
+        else:
+            if self.hooks["compileResource"] is not None:
+                self.menu.addAction(
+                    self.hooksMenuEntries.get("compileResource", 
+                        self.trUtf8('Compile resource')), 
+                    self.__compileResource)
+            if self.hooks["compileAllResources"] is not None:
+                self.menu.addAction(
+                    self.hooksMenuEntries.get("compileAllResources", 
+                        self.trUtf8('Compile all resources')), 
+                    self.__compileAllResources)
+            if self.hooks["compileResource"] is not None or \
+               self.hooks["compileAllResources"] is not None:
+                self.menu.addSeparator()
+        self.menu.addAction(self.trUtf8('Open'), self.__openFile)
+        self.menu.addSeparator()
+        act = self.menu.addAction(self.trUtf8('Rename file'), self._renameFile)
+        self.menuActions.append(act)
+        act = self.menu.addAction(self.trUtf8('Remove from project'), self._removeFile)
+        self.menuActions.append(act)
+        act = self.menu.addAction(self.trUtf8('Delete'), self.__deleteFile)
+        self.menuActions.append(act)
+        self.menu.addSeparator()
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            self.menu.addAction(self.trUtf8('New resource...'), self.__newResource)
+        else:
+            if self.hooks["newResource"] is not None:
+                self.menu.addAction(
+                    self.hooksMenuEntries.get("newResource", 
+                        self.trUtf8('New resource...')), self.__newResource)
+        self.menu.addAction(self.trUtf8('Add resources...'), self.__addResourceFiles)
+        self.menu.addAction(self.trUtf8('Add resources directory...'), 
+            self.__addResourcesDirectory)
+        self.menu.addSeparator()
+        self.menu.addAction(self.trUtf8('Copy Path to Clipboard'), 
+            self._copyToClipboard)
+        self.menu.addSeparator()
+        self.menu.addAction(self.trUtf8('Expand all directories'), 
+            self._expandAllDirs)
+        self.menu.addAction(self.trUtf8('Collapse all directories'), 
+            self._collapseAllDirs)
+        self.menu.addSeparator()
+        self.menu.addAction(self.trUtf8('Configure...'), self._configure)
+
+        self.backMenu = QMenu(self)
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            self.backMenu.addAction(self.trUtf8('Compile all resources'), 
+                self.__compileAllResources)
+            self.backMenu.addSeparator()
+            self.backMenu.addAction(self.trUtf8('New resource...'), self.__newResource)
+        else:
+            if self.hooks["compileAllResources"] is not None:
+                self.backMenu.addAction(
+                    self.hooksMenuEntries.get("compileAllResources", 
+                        self.trUtf8('Compile all resources')), 
+                    self.__compileAllResources)
+                self.backMenu.addSeparator()
+            if self.hooks["newResource"] is not None:
+                self.backMenu.addAction(
+                    self.hooksMenuEntries.get("newResource", 
+                        self.trUtf8('New resource...')), self.__newResource)
+        self.backMenu.addAction(self.trUtf8('Add resources...'), 
+            self.project.addResourceFiles)
+        self.backMenu.addAction(self.trUtf8('Add resources directory...'), 
+            self.project.addResourceDir)
+        self.backMenu.addSeparator()
+        self.backMenu.addAction(self.trUtf8('Expand all directories'), 
+            self._expandAllDirs)
+        self.backMenu.addAction(self.trUtf8('Collapse all directories'), 
+            self._collapseAllDirs)
+        self.backMenu.addSeparator()
+        self.backMenu.addAction(self.trUtf8('Configure...'), self._configure)
+        self.backMenu.setEnabled(False)
+
+        # create the menu for multiple selected files
+        self.multiMenu = QMenu(self)
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            act = self.multiMenu.addAction(self.trUtf8('Compile resources'), 
+                self.__compileSelectedResources)
+            self.multiMenu.addSeparator()
+        else:
+            if self.hooks["compileSelectedResources"] is not None:
+                act = self.multiMenu.addAction(
+                    self.hooksMenuEntries.get("compileSelectedResources", 
+                        self.trUtf8('Compile resources')), 
+                    self.__compileSelectedResources)
+                self.multiMenu.addSeparator()
+        self.multiMenu.addAction(self.trUtf8('Open'), self.__openFile)
+        self.multiMenu.addSeparator()
+        act = self.multiMenu.addAction(self.trUtf8('Remove from project'), 
+            self._removeFile)
+        self.multiMenuActions.append(act)
+        act = self.multiMenu.addAction(self.trUtf8('Delete'), self.__deleteFile)
+        self.multiMenuActions.append(act)
+        self.multiMenu.addSeparator()
+        self.multiMenu.addAction(self.trUtf8('Expand all directories'), 
+            self._expandAllDirs)
+        self.multiMenu.addAction(self.trUtf8('Collapse all directories'), 
+            self._collapseAllDirs)
+        self.multiMenu.addSeparator()
+        self.multiMenu.addAction(self.trUtf8('Configure...'), self._configure)
+
+        self.dirMenu = QMenu(self)
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            self.dirMenu.addAction(self.trUtf8('Compile all resources'), 
+                self.__compileAllResources)
+            self.dirMenu.addSeparator()
+        else:
+            if self.hooks["compileAllResources"] is not None:
+                self.dirMenu.addAction(
+                    self.hooksMenuEntries.get("compileAllResources", 
+                        self.trUtf8('Compile all resources')), 
+                    self.__compileAllResources)
+                self.dirMenu.addSeparator()
+        act = self.dirMenu.addAction(self.trUtf8('Remove from project'), self._removeDir)
+        self.dirMenuActions.append(act)
+        self.dirMenu.addSeparator()
+        self.dirMenu.addAction(self.trUtf8('New resource...'), self.__newResource)
+        self.dirMenu.addAction(self.trUtf8('Add resources...'), self.__addResourceFiles)
+        self.dirMenu.addAction(self.trUtf8('Add resources directory...'), 
+            self.__addResourcesDirectory)
+        self.dirMenu.addSeparator()
+        self.dirMenu.addAction(self.trUtf8('Copy Path to Clipboard'), 
+            self._copyToClipboard)
+        self.dirMenu.addSeparator()
+        self.dirMenu.addAction(self.trUtf8('Expand all directories'), 
+            self._expandAllDirs)
+        self.dirMenu.addAction(self.trUtf8('Collapse all directories'), 
+            self._collapseAllDirs)
+        self.dirMenu.addSeparator()
+        self.dirMenu.addAction(self.trUtf8('Configure...'), self._configure)
+        
+        self.dirMultiMenu = QMenu(self)
+        if self.project.getProjectType() in ["Qt4", "E4Plugin", "PySide"]:
+            self.dirMultiMenu.addAction(self.trUtf8('Compile all resources'), 
+                self.__compileAllResources)
+            self.dirMultiMenu.addSeparator()
+        else:
+            if self.hooks["compileAllResources"] is not None:
+                self.dirMultiMenu.addAction(
+                    self.hooksMenuEntries.get("compileAllResources", 
+                        self.trUtf8('Compile all resources')), 
+                    self.__compileAllResources)
+                self.dirMultiMenu.addSeparator()
+        self.dirMultiMenu.addAction(self.trUtf8('Add resources...'), 
+            self.project.addResourceFiles)
+        self.dirMultiMenu.addAction(self.trUtf8('Add resources directory...'), 
+            self.project.addResourceDir)
+        self.dirMultiMenu.addSeparator()
+        self.dirMultiMenu.addAction(self.trUtf8('Expand all directories'), 
+            self._expandAllDirs)
+        self.dirMultiMenu.addAction(self.trUtf8('Collapse all directories'), 
+            self._collapseAllDirs)
+        self.dirMultiMenu.addSeparator()
+        self.dirMultiMenu.addAction(self.trUtf8('Configure...'), self._configure)
+        
+        self.connect(self.menu, SIGNAL('aboutToShow()'),
+            self.__showContextMenu)
+        self.connect(self.multiMenu, SIGNAL('aboutToShow()'),
+            self.__showContextMenuMulti)
+        self.connect(self.dirMenu, SIGNAL('aboutToShow()'),
+            self.__showContextMenuDir)
+        self.connect(self.dirMultiMenu, SIGNAL('aboutToShow()'),
+            self.__showContextMenuDirMulti)
+        self.connect(self.backMenu, SIGNAL('aboutToShow()'),
+            self.__showContextMenuBack)
+        self.mainMenu = self.menu
+        
+    def _contextMenuRequested(self, coord):
+        """
+        Protected slot to show the context menu.
+        
+        @param coord the position of the mouse pointer (QPoint)
+        """
+        if not self.project.isOpen():
+            return
+        
+        try:
+            categories = self.getSelectedItemsCountCategorized(\
+                [ProjectBrowserFileItem, ProjectBrowserSimpleDirectoryItem])
+            cnt = categories["sum"]
+            if cnt <= 1:
+                index = self.indexAt(coord)
+                if index.isValid():
+                    self._selectSingleItem(index)
+                    categories = self.getSelectedItemsCountCategorized(\
+                        [ProjectBrowserFileItem, ProjectBrowserSimpleDirectoryItem])
+                    cnt = categories["sum"]
+                        
+            bfcnt = categories[unicode(ProjectBrowserFileItem)]
+            sdcnt = categories[unicode(ProjectBrowserSimpleDirectoryItem)]
+            if cnt > 1 and cnt == bfcnt:
+                self.multiMenu.popup(self.mapToGlobal(coord))
+            elif cnt > 1 and cnt == sdcnt:
+                self.dirMultiMenu.popup(self.mapToGlobal(coord))
+            else:
+                index = self.indexAt(coord)
+                if cnt == 1 and index.isValid():
+                    if bfcnt == 1:
+                        self.menu.popup(self.mapToGlobal(coord))
+                    elif sdcnt == 1:
+                        self.dirMenu.popup(self.mapToGlobal(coord))
+                    else:
+                        self.backMenu.popup(self.mapToGlobal(coord))
+                else:
+                    self.backMenu.popup(self.mapToGlobal(coord))
+        except:
+            pass
+        
+    def __showContextMenu(self):
+        """
+        Private slot called by the menu aboutToShow signal.
+        """
+        ProjectBaseBrowser._showContextMenu(self, self.menu)
+        
+        self.emit(SIGNAL("showMenu"), "Main", self.menu)
+        
+    def __showContextMenuMulti(self):
+        """
+        Private slot called by the multiMenu aboutToShow signal.
+        """
+        ProjectBaseBrowser._showContextMenuMulti(self, self.multiMenu)
+        
+        self.emit(SIGNAL("showMenu"), "MainMulti", self.multiMenu)
+        
+    def __showContextMenuDir(self):
+        """
+        Private slot called by the dirMenu aboutToShow signal.
+        """
+        ProjectBaseBrowser._showContextMenuDir(self, self.dirMenu)
+        
+        self.emit(SIGNAL("showMenu"), "MainDir", self.dirMenu)
+        
+    def __showContextMenuDirMulti(self):
+        """
+        Private slot called by the dirMultiMenu aboutToShow signal.
+        """
+        ProjectBaseBrowser._showContextMenuDirMulti(self, self.dirMultiMenu)
+        
+        self.emit(SIGNAL("showMenu"), "MainDirMulti", self.dirMultiMenu)
+        
+    def __showContextMenuBack(self):
+        """
+        Private slot called by the backMenu aboutToShow signal.
+        """
+        ProjectBaseBrowser._showContextMenuBack(self, self.backMenu)
+        
+        self.emit(SIGNAL("showMenu"), "MainBack", self.backMenu)
+        
+    def __addResourceFiles(self):
+        """
+        Private method to add resource files to the project.
+        """
+        itm = self.model().item(self.currentIndex())
+        if isinstance(itm, ProjectBrowserFileItem):
+            dn = os.path.dirname(itm.fileName())
+        elif isinstance(itm, ProjectBrowserSimpleDirectoryItem) or \
+             isinstance(itm, ProjectBrowserDirectoryItem):
+            dn = itm.dirName()
+        else:
+            dn = None
+        self.project.addFiles('resource', dn)
+        
+    def __addResourcesDirectory(self):
+        """
+        Private method to add resource files of a directory to the project.
+        """
+        itm = self.model().item(self.currentIndex())
+        if isinstance(itm, ProjectBrowserFileItem):
+            dn = os.path.dirname(itm.fileName())
+        elif isinstance(itm, ProjectBrowserSimpleDirectoryItem) or \
+             isinstance(itm, ProjectBrowserDirectoryItem):
+            dn = itm.dirName()
+        else:
+            dn = None
+        self.project.addDirectory('resource', dn)
+        
+    def _openItem(self):
+        """
+        Protected slot to handle the open popup menu entry.
+        """
+        self.__openFile()
+        
+    def __openFile(self):
+        """
+        Private slot to handle the Open menu action.
+        """
+        itmList = self.getSelectedItems()
+        for itm in itmList[:]:
+            if isinstance(itm, ProjectBrowserFileItem):
+                self.emit(SIGNAL('sourceFile'), itm.fileName())
+        
+    def __newResource(self):
+        """
+        Private slot to handle the New Resource menu action.
+        """
+        itm = self.model().item(self.currentIndex())
+        if itm is None:
+            path = self.project.ppath
+        else:
+            try:
+                path = os.path.dirname(itm.fileName())
+            except AttributeError:
+                path = os.path.join(self.project.ppath, itm.data(0))
+        
+        if self.hooks["newResource"] is not None:
+            self.hooks["newResource"](path)
+        else:
+            fname, selectedFilter = QFileDialog.getSaveFileNameAndFilter(\
+                self,
+                self.trUtf8("New Resource"),
+                path,
+                self.trUtf8("Qt Resource Files (*.qrc)"),
+                "",
+                QFileDialog.Options(QFileDialog.DontConfirmOverwrite))
+            
+            if not fname:
+                # user aborted or didn't enter a filename
+                return
+            
+            ext = QFileInfo(fname).suffix()
+            if not ext:
+                ex = selectedFilter.split("(*")[1].split(")")[0]
+                if ex:
+                    fname += ex
+            
+            if os.path.exists(fname):
+                res = QMessageBox.warning(self,
+                    self.trUtf8("New Resource"),
+                    self.trUtf8("The file already exists! Overwrite it?"),
+                    QMessageBox.StandardButtons(\
+                        QMessageBox.No | \
+                        QMessageBox.Yes),
+                    QMessageBox.No)
+                if res != QMessageBox.Yes:
+                    # user selected to not overwrite
+                    return
+            
+            try:
+                rcfile = open(fname, 'wb')
+                rcfile.write('<!DOCTYPE RCC>\n')
+                rcfile.write('<RCC version="1.0">\n')
+                rcfile.write('<qresource>\n')
+                rcfile.write('</qresource>\n')
+                rcfile.write('</RCC>\n')
+                rcfile.close()
+            except IOError, e:
+                QMessageBox.critical(self,
+                    self.trUtf8("New Resource"),
+                    self.trUtf8("<p>The new resource file <b>{0}</b> could not be created.<br>"
+                        "Problem: {1}</p>").format(fname, unicode(e)))
+                return
+            
+            self.project.appendFile(fname)
+            self.emit(SIGNAL('sourceFile'), fname)
+        
+    def __deleteFile(self):
+        """
+        Private method to delete a resource file from the project.
+        """
+        itmList = self.getSelectedItems()
+        
+        files = []
+        fullNames = []
+        for itm in itmList:
+            fn2 = itm.fileName()
+            fullNames.append(fn2)
+            fn = fn2.replace(self.project.ppath+os.sep, '')
+            files.append(fn)
+        
+        dlg = DeleteFilesConfirmationDialog(self.parent(),
+            self.trUtf8("Delete resources"),
+            self.trUtf8("Do you really want to delete these resources from the project?"),
+            files)
+        
+        if dlg.exec_() == QDialog.Accepted:
+            for fn2, fn in zip(fullNames, files):
+                self.emit(SIGNAL('closeSourceWindow'), fn2)
+                self.project.deleteFile(fn)
+    
+    ############################################################################
+    ##  Methods to handle the various compile commands
+    ############################################################################
+    
+    def __readStdout(self):
+        """
+        Private slot to handle the readyReadStandardOutput signal of the 
+        pyrcc4/rbrcc process.
+        """
+        if self.compileProc is None:
+            return
+        self.compileProc.setReadChannel(QProcess.StandardOutput)
+        
+        while self.compileProc and self.compileProc.canReadLine():
+            self.buf += unicode(self.compileProc.readLine())
+        
+    def __readStderr(self):
+        """
+        Private slot to handle the readyReadStandardError signal of the 
+        pyrcc4/rbrcc process.
+        """
+        if self.compileProc is None:
+            return
+        
+        ioEncoding = str(Preferences.getSystem("IOEncoding"))
+        
+        self.compileProc.setReadChannel(QProcess.StandardError)
+        while self.compileProc and self.compileProc.canReadLine():
+            s = self.rccCompiler + ': '
+            error = unicode(self.compileProc.readLine(), 
+                            ioEncoding, 'replace')
+            s += error
+            self.emit(SIGNAL('appendStderr'), s)
+        
+    def __compileQRCDone(self, exitCode, exitStatus):
+        """
+        Private slot to handle the finished signal of the compile process.
+        
+        @param exitCode exit code of the process (integer)
+        @param exitStatus exit status of the process (QProcess.ExitStatus)
+        """
+        self.compileRunning = False
+        e4App().getObject("ViewManager").enableEditorsCheckFocusIn(True)
+        if exitStatus == QProcess.NormalExit and exitCode == 0 and self.buf:
+            ofn = os.path.join(self.project.ppath, self.compiledFile)
+            try:
+                f = open(ofn, "wb")
+                for line in self.buf.splitlines():
+                    f.write(line.encode("utf8") + os.linesep)
+                f.close()
+                if self.compiledFile not in self.project.pdata["SOURCES"]:
+                    self.project.appendFile(ofn)
+                if not self.noDialog:
+                    QMessageBox.information(None,
+                        self.trUtf8("Resource Compilation"),
+                        self.trUtf8("The compilation of the resource file"
+                            " was successful."))
+            except IOError, msg:
+                if not self.noDialog:
+                    QMessageBox.information(None,
+                        self.trUtf8("Resource Compilation"),
+                        self.trUtf8("<p>The compilation of the resource file failed.</p>"
+                            "<p>Reason: {0}</p>").format(unicode(msg)))
+        else:
+            if not self.noDialog:
+                QMessageBox.information(None,
+                    self.trUtf8("Resource Compilation"),
+                    self.trUtf8("The compilation of the resource file failed."))
+        self.compileProc = None
+        
+    def __compileQRC(self, fn, noDialog = False, progress = None):
+        """
+        Privat method to compile a .qrc file to a .py file.
+        
+        @param fn filename of the .ui file to be compiled
+        @param noDialog flag indicating silent operations
+        @param progress reference to the progress dialog
+        @return reference to the compile process (QProcess)
+        """
+        self.compileProc = QProcess()
+        args = []
+        self.buf = ""
+        
+        if self.project.pdata["PROGLANGUAGE"][0] in ["Python", "Python3"]:
+            if self.project.getProjectType() in ["Qt4", "E4Plugin"]:
+                self.rccCompiler = 'pyrcc4'
+                if PYQT_VERSION >= 0x040500:
+                    if self.project.pdata["PROGLANGUAGE"][0] == "Python":
+                        args.append("-py2")
+                    else:
+                        args.append("-py3")
+            elif self.project.getProjectType() == "PySide":
+                self.rccCompiler = 'pyside-rcc4'
+                if self.project.pdata["PROGLANGUAGE"][0] == "Python":
+                    args.append("-py2")
+                else:
+                    args.append("-py3")
+            else:
+                return None
+        elif self.project.pdata["PROGLANGUAGE"][0] == "Ruby":
+            if self.project.getProjectType() == "Qt4":
+                self.rccCompiler = 'rbrcc'
+            else:
+                return None
+        else:
+            return None
+        
+        rcc = self.rccCompiler
+        if Utilities.isWindowsPlatform():
+            rcc = rcc + '.exe'
+        
+        ofn, ext = os.path.splitext(fn)
+        fn = os.path.join(self.project.ppath, fn)
+        
+        dirname, filename = os.path.split(ofn)
+        if self.project.pdata["PROGLANGUAGE"][0] in ["Python", "Python3"]:
+            self.compiledFile = os.path.join(dirname, 
+                                self.RCFilenameFormatPython % filename)
+        elif self.project.pdata["PROGLANGUAGE"][0] == "Ruby":
+            self.compiledFile = os.path.join(
+                                dirname, self.RCFilenameFormatRuby % filename)
+        
+        args.append(fn)
+        self.connect(self.compileProc, SIGNAL('finished(int, QProcess::ExitStatus)'),
+            self.__compileQRCDone)
+        self.connect(self.compileProc, SIGNAL('readyReadStandardOutput()'), 
+            self.__readStdout)
+        self.connect(self.compileProc, SIGNAL('readyReadStandardError()'), 
+            self.__readStderr)
+        
+        self.noDialog = noDialog
+        self.compileProc.start(rcc, args)
+        procStarted = self.compileProc.waitForStarted()
+        if procStarted:
+            self.compileRunning = True
+            e4App().getObject("ViewManager").enableEditorsCheckFocusIn(False)
+            return self.compileProc
+        else:
+            self.compileRunning = False
+            if progress is not None:
+                progress.cancel()
+            QMessageBox.critical(self,
+                self.trUtf8('Process Generation Error'),
+                self.trUtf8(
+                    'Could not start {0}.<br>'
+                    'Ensure that it is in the search path.'
+                ).format(self.rccCompiler))
+            return None
+        
+    def __compileResource(self):
+        """
+        Private method to compile a resource to a source file.
+        """
+        itm = self.model().item(self.currentIndex())
+        fn2 = itm.fileName()
+        fn = fn2.replace(self.project.ppath+os.sep, '')
+        if self.hooks["compileResource"] is not None:
+            self.hooks["compileResource"](fn)
+        else:
+            self.__compileQRC(fn)
+        
+    def __compileAllResources(self):
+        """
+        Private method to compile all resources to source files.
+        """
+        if self.hooks["compileAllResources"] is not None:
+            self.hooks["compileAllResources"](self.project.pdata["RESOURCES"])
+        else:
+            numResources = len(self.project.pdata["RESOURCES"])
+            progress = QProgressDialog(self.trUtf8("Compiling resources..."), 
+                self.trUtf8("Abort"), 0, numResources, self)
+            progress.setModal(True)
+            progress.setMinimumDuration(0)
+            i = 0
+            
+            for fn in self.project.pdata["RESOURCES"]:
+                progress.setValue(i)
+                if progress.wasCanceled():
+                    break
+                proc = self.__compileQRC(fn, True, progress)
+                if proc is not None:
+                    while proc.state() == QProcess.Running:
+                        QApplication.processEvents()
+                        QThread.msleep(300)
+                        QApplication.processEvents()
+                else:
+                    break
+                i += 1
+                
+            progress.setValue(numResources)
+        
+    def __compileSelectedResources(self):
+        """
+        Private method to compile selected resources to source files.
+        """
+        items = self.getSelectedItems()
+        files = [itm.fileName().replace(self.project.ppath+os.sep, '') \
+                 for itm in items]
+        
+        if self.hooks["compileSelectedResources"] is not None:
+            self.hooks["compileSelectedResources"](files)
+        else:
+            numResources = len(files)
+            progress = QProgressDialog(self.trUtf8("Compiling resources..."), 
+                self.trUtf8("Abort"), 0, numResources, self)
+            progress.setModal(True)
+            progress.setMinimumDuration(0)
+            i = 0
+            
+            for fn in files:
+                progress.setValue(i)
+                if progress.wasCanceled():
+                    break
+                if not fn.endswith('.ui.h'):
+                    proc = self.__compileQRC(fn, True, progress)
+                    if proc is not None:
+                        while proc.state() == QProcess.Running:
+                            QApplication.processEvents()
+                            QThread.msleep(300)
+                            QApplication.processEvents()
+                    else:
+                        break
+                i += 1
+                
+            progress.setValue(numResources)
+        
+    def __checkResourcesNewer(self, filename, mtime):
+        """
+        Private method to check, if any file referenced in a resource
+        file is newer than a given time.
+        
+        @param filename filename of the resource file (string)
+        @param mtime modification time to check against
+        @return flag indicating some file is newer (boolean)
+        """
+        try:
+            f = open(filename, "r")
+            buf = f.read()
+            f.close()
+        except IOError:
+            return False
+        
+        lbuf = ""
+        for line in buf.splitlines():
+            line = line.strip()
+            if line.lower().startswith("<file>") or line.lower().startswith("<file "):
+                lbuf = line
+            elif lbuf:
+                lbuf = "%s%s" % (lbuf, line)
+            if lbuf.lower().endswith("</file>"):
+                rfile = lbuf.split(">", 1)[1].split("<", 1)[0]
+                if not os.path.isabs(rfile):
+                    rfile = os.path.join(self.project.ppath, rfile)
+                if os.path.exists(rfile) and \
+                   os.stat(rfile).st_mtime > mtime:
+                       return True
+                
+                lbuf = ""
+        
+        return False
+        
+    def compileChangedResources(self):
+        """
+        Public method to compile all changed resources to source files.
+        """
+        if self.hooks["compileChangedResources"] is not None:
+            self.hooks["compileChangedResources"](self.project.pdata["RESOURCES"])
+        else:
+            progress = QProgressDialog(self.trUtf8("Determining changed resources..."), 
+                "", 0, 100)
+            progress.setMinimumDuration(0)
+            i = 0
+            
+            # get list of changed resources
+            changedResources = []
+            progress.setMaximum(len(self.project.pdata["RESOURCES"]))
+            for fn in self.project.pdata["RESOURCES"]:
+                progress.setValue(i)
+                QApplication.processEvents()
+                ifn = os.path.join(self.project.ppath, fn)
+                if self.project.pdata["PROGLANGUAGE"][0] in ["Python", "Python3"]:
+                    dirname, filename = os.path.split(os.path.splitext(ifn)[0])
+                    ofn = os.path.join(dirname, 
+                                       self.RCFilenameFormatPython % filename)
+                elif self.project.pdata["PROGLANGUAGE"][0] == "Ruby":
+                    dirname, filename = os.path.split(os.path.splitext(ifn)[0])
+                    ofn = os.path.join(dirname, 
+                                       self.RCFilenameFormatRuby % filename)
+                else:
+                    return
+                if not os.path.exists(ofn) or \
+                   os.stat(ifn).st_mtime > os.stat(ofn).st_mtime:
+                    changedResources.append(fn)
+                elif self.__checkResourcesNewer(ifn, os.stat(ofn).st_mtime):
+                    changedResources.append(fn)
+                i += 1
+            progress.setValue(i)
+            QApplication.processEvents()
+            
+            if changedResources:
+                progress.setLabelText(self.trUtf8("Compiling changed resources..."))
+                progress.setMaximum(len(changedResources))
+                i = 0
+                progress.setValue(i)
+                QApplication.processEvents()
+                for fn in changedResources:
+                    progress.setValue(i)
+                    proc = self.__compileQRC(fn, True, progress)
+                    if proc is not None:
+                        while proc.state() == QProcess.Running:
+                            QApplication.processEvents()
+                            QThread.msleep(300)
+                            QApplication.processEvents()
+                    else:
+                        break
+                    i += 1
+                progress.setValue(len(changedResources))
+                QApplication.processEvents()
+        
+    def handlePreferencesChanged(self):
+        """
+        Public slot used to handle the preferencesChanged signal.
+        """
+        ProjectBaseBrowser.handlePreferencesChanged(self)
+    
+    ############################################################################
+    ## Support for hooks below
+    ############################################################################
+    
+    def _initHookMethods(self):
+        """
+        Protected method to initialize the hooks dictionary.
+        
+        Supported hook methods are:
+        <ul>
+        <li>compileResource: takes filename as parameter</li>
+        <li>compileAllResources: takes list of filenames as parameter</li>
+        <li>compileChangedResources: takes list of filenames as parameter</li>
+        <li>compileSelectedResources: takes list of all form filenames as parameter</li>
+        <li>newResource: takes full directory path of new file as parameter</li>
+        </ul>
+        
+        <b>Note</b>: Filenames are relative to the project directory, if not
+        specified differently.
+        """
+        self.hooks = {
+            "compileResource"           : None, 
+            "compileAllResources"       : None, 
+            "compileChangedResources"   : None, 
+            "compileSelectedResources"  : None, 
+            "newResource"               : None, 
+        }

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