General and Desktop

I think it is adequately covered in the documentation under "Setting the Application Icon":http://qt-project.org/doc/qt-4.8/appicon.html and referenced "standards." The only part lacking is suggested location for the desktop files: Per-user location for the desktop file is typically ".local/share/applications" System wide "/usr/share/applications/". Your assessment is correct. The desktop icon on Linux is not part of the executable. It isn't for OS X either, it's just that the mechanism is standard so installing the separate file into the application bundle is easily automated. On Linux your installer (or application on first start) needs to take care of this based on the environment presented to it. On all platforms the desktop icon has no direct relationship to the application window icon. QApplication::setWindowIcon() works on all three desktop platforms.

Setting the ItemIsEditable flag for the column in the model was the missing step. Thanks for pointing it out.

[quote author="Lukas Geyer" date="1337528339"]"setHeaderData()":http://qt-project.org/doc/qt-4.8/qsqlquerymodel.html#setHeaderData. See "also":http://qt-project.org/doc/qt-4.8/qsqlquerymodel.html#details.[/quote] I was looking for it in QTableView :-/ Thank you

Ahhh... Finally! Projects, have to be rebuilt after any changes applied to any of libraries they linked against. Though I thought this is only true for statically linked libraries... I learned this today :)

@1+1=2 As far as I understand, p3aul knows and understands C++. Furthermore, while Qt doesn't require user to be a C++ expert, you'd better be one.

Thank you, but I have decided for a QGLWidget.

No, Lars talks about a standard Qt library release. Preparing the SDK usually takes a bit longer. But who knows, maybe Nokia will change that for such an occasion as new major release.

OK it seems I found the solution: @ surface = self.parent().geometry() self.setGeometry(surface) path = QtGui.QPainterPath() path.setFillRule(QtCore.Qt.OddEvenFill) path.addRect(QtCore.QRectF(surface)) path.addRect(QtCore.QRectF(self.parent().rubberband.geometry())) self.painter.begin(self) self.painter.setBrush(QtGui.QBrush(QtGui.QColor(100, 100, 100, 70))) self.painter.setPen(QtGui.QPen(QtGui.QColor(0, 0, 0, 80))) self.painter.drawPath(path) self.painter.end()@ Although I wonder whether this is the simplest solution? I'm surprised QPainter does not has a fill mode that allows to invert or exclude an area.

What to choose to programming on mobile devices? (Not only cell phones, but also tablets) ?

For now I have worked around this "bug" by creating a QWidget and reimplementing its paintEvent() with a forked option (either fillRect() or pass) and forcing an update() whenever changes are required. It might even be a better idea than using hide() / show(). Or isn't it?

Feel free to rename the library file and ignore the symlinks in your install script. Or, write a short shell script that renames and creates the desired links. Have it called after linking with: @QMAKE_POST_LINK = ./post_link_script.sh $$quote($(TARGET)) @ @#!/bin/bash TARGET_X_Y_Z=${1} TARGET_X_Y=${TARGET_X_Y_Z%.} TARGET_X=${TARGET_X_Y%.} TARGET=${TARGET_X%.*} rm $TARGET_X_Y $TARGET_X $TARGET mv $TARGET_X_Y_Z $TARGET ln -s $TARGET $TARGET_X@

Are you using a custom delegate? You can subclass QStyledItemDelegate and override the paint() function and sizeHint() function.

It works thanks :)

[quote author="Rahul Das" date="1337314090"]I haven't tried, but what happens if you set the alignment of the text to Right?[/quote] Good idea, unfortunately it didn't work. It seems crazy that this isn't customizable, but I'm thinking I might just have to use QWidgetAction and lay things out myself.

You also need to set @ treeWidget->setContextMenuPolicy(Qt::ActionsContextMenu); @ If you need to have different context menu for some of the items in the tree, you need to connect the itemSelectionChanged() signal to a slot where you remove/adds actions according to your needs.

Nevermind, found a backup :)