"after having mastered QModelView" :) not quite yet, but maybe in a few months. I'm writing a "Maya Asset Finder" at work which will display pipeline related tools based on the selection or mode the user manualy chooses. With other Nview style previews of textures ect. We did toy with the idea of meta tags via a back end dB but meta filtering and who has access to add tags etc caused us a pipeline headache.
I've not used Itunes but I am downloading now :). I would imagine that the filtering is done by itunes dB somewhere? When the file is scanned it's mp3 tags are added to the root data base somehow. I suspose that you could use QSqlRelationalTableModel to set/get the filter dB relationships. You would then implement a custom QTreeViewWidget designed to display your custom tree. Firing of Signals to your treeView/listView or tableView that uses QSqlTableModel. It's a lot more advanced than I currently am. so sorry :( Python Qt ramble... As I get more into PyQt I find that I'm learning python a lot better. I've come from a animator/environment artist background and learnt mel as a way to batch basic tasks. Then when I started learning python I found I was programming in a Mel style. OO programming was a mistery to me. I got alittle better but it wasn't untill I decided to learn PyQt that reading the OO api forced me to think differently. I even split my UI designs in Qt to seperate UI's and parnet them in to main UI. So for anyone finding OO programming tuff. You have to use a OO api before you start to get it. laters -Dave On May 30, 5:49 pm, Chad Dombrova <[email protected]> wrote: > hey thanks for the example code! > i messed around with the QModelView when trying to create an iTunes- > style navigation widget, but i remember having a lot of trouble > getting it to work. as i remember, a big part of the problem was > getting it to support the notion of the "All" item that appears at the > top of every column in iTunes. this is going on much-faded memory, > but perhaps it had something to do with QViewModel working more like a > tree, whereas iTunes behaves as a filtering system, where each > column's filter can be applied or not (the "not" being the "All" > item). after having mastered QModelView, do you have any insight into > this? do you know if QModelView could handle the slightly simpler -- > and more tree-like -- case of a Finder-style column-based navigation? > > -chad > > On May 29, 2009, at 4:40 PM, thirstydevil wrote: > > > > > Tonight I tried to play with QT's QModel concept. It had stumped me > > for quite sometime at work today. I couldn't rest untill I had > > understood the basics. I'm not sure if this will be usefull to the > > hoi polloi but some may find it useful. > > > Anyways, heres a listView using a QDirModel for reference. > > Oh, and for those that are python/Qt gurus please comment if I'm doing > > this the wrong way. > > > -Cheers > > Dave > > > ## ---------------------------------------------- > > > from PyQt4 import QtCore, QtGui > > import sys > > import os > > > class UI(QtGui.QWidget): > > def __init__(self, parent=None): > > QtGui.QWidget.__init__(self, parent) > > > self.setWindowTitle('listView ModelView Example') > > self.listView = MyListView() > > self.upButton = QtGui.QPushButton() > > self.upButton.setText("Up") > > > grid = QtGui.QGridLayout() > > grid.addWidget(self.upButton) > > grid.addWidget(self.listView) > > > self.setLayout(grid) > > > self.resize(300, 150) > > > items = self.listView.getModelItemCollection() > > print self.listView.DirModel.getData(items) > > > self.connect(self.upButton, QtCore.SIGNAL("clicked()"), > > self._GoUp) > > > def _GoUp(self): > > path = self.listView.DirModel.filePath(self.listView.rootIndex > > ()) > > self.listView.setRootIndex(self.listView.DirModel.index > > ( os.path.dirname(str(path)))) > > > �...@staticmethod > > def Display(): > > app = QtGui.QApplication(sys.argv) > > win = UI() > > win.show() > > sys.exit(app.exec_()) > > > class MyDirModel(QtGui.QDirModel): > > ''' > > SubClass of QtGui.QDirmodel > > ''' > > def __init__(self): > > super(MyDirModel, self).__init__() > > > def getData(self, ModelIndex): > > ''' > > Using QModelIndex I can get data via the data() method or > > via any other method that suport a QModelIndex > > ''' > > paths = [] > > if isinstance(ModelIndex, list): > > for items in ModelIndex: > > #print self.data(items).toString() > > paths.append(self.filePath(items)) > > return paths > > else: > > raise ValueError("getData() requires a list > > (QtGui.QModelIndexs)") > > > class MyListView(QtGui.QListView): > > ''' > > SubClass of QtGui.QListView > > ''' > > > def __init__(self, parent = None): > > super(MyListView, self).__init__(parent) > > self.DirModel = MyDirModel() > > self.setModel(self.DirModel) # we have to set the listView to > > use this DirModel > > self.setRootIndex(self.DirModel.index("c://")) # set the > > deafault to load to c:\ > > > self.connect(self, QtCore.SIGNAL("doubleClicked > > (QModelIndex)"), self._DoubleClicked) > > > def getModelItemCollection(self): > > ''' > > From this list get the QModelIndex that we set > > with .setRootIndex > > Using QModelIndex and DirModel we can get all the elements at > > that Index > > ''' > > ModelIndex = self.rootIndex() > > ModelIndexCollection = [] > > for i in range(0, self.DirModel.rowCount(ModelIndex)): > > ModelIndexCollection.append(ModelIndex.child(i,0)) > > return ModelIndexCollection > > > def _DoubleClicked(self): > > if self.DirModel.isDir(self.currentIndex()): > > path = self.DirModel.filePath(self.currentIndex()) > > self.setRootIndex(self.DirModel.index(path)) > > items = self.getModelItemCollection() > > print self.DirModel.getData(items) > > > if __name__ == "__main__": > > UI.Display() > > --~--~---------~--~----~------------~-------~--~----~ http://groups.google.com/group/python_inside_maya -~----------~----~----~----~------~----~------~--~---
