Making Icon with more than one image

[weepdoo]

Here it is:
image_with_alpha.jpg

The code for this is:

import sys
from PyQt4 import QtGui, QtCore
 
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
 
    i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
 
    alpha = QtGui.QPixmap(QtCore.QSize(24, 24))
    alpha.fill(QtCore.Qt.transparent)
 
    result = QtGui.QPixmap(QtCore.QSize(24, 24))
 
    painter = QtGui.QPainter(result)
 
    painter.setBrush(QtGui.QBrush(QtCore.Qt.NoBrush))
 
    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))
 
    painter.drawImage(QtCore.QRect(0, 0, 24, 24),
                      i1.toImage(),
                      QtCore.QRect(0, 0, 24, 24))
 
    painter.drawImage(QtCore.QRect(0, 0, 15, 15),
                      i2.toImage(),
                      QtCore.QRect(0, 0, 24, 24))
 
    painter.end()
 
    label = QtGui.QLabel()
    label.setPixmap(result)
    label.show()
    sys.exit(app.exec_())

import sys
from PyQt4 import QtGui, QtCore

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    
    i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
    
    alpha = QtGui.QPixmap(QtCore.QSize(24, 24))
    alpha.fill(QtCore.Qt.transparent)
    
    result = QtGui.QPixmap(QtCore.QSize(24, 24))

    painter = QtGui.QPainter(result)

    painter.setBrush(QtGui.QBrush(QtCore.Qt.NoBrush))

    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))

    painter.drawImage(QtCore.QRect(0, 0, 24, 24),
                      i1.toImage(),
                      QtCore.QRect(0, 0, 24, 24))

    painter.drawImage(QtCore.QRect(0, 0, 15, 15),
                      i2.toImage(),
                      QtCore.QRect(0, 0, 24, 24))

    painter.end()

    label = QtGui.QLabel()
    label.setPixmap(result)
    label.show()
    sys.exit(app.exec_())

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Why does it do not work ???

[weepdoo]

I tried this:

[...]
i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
 
    alpha = QtGui.QPixmap(QtCore.QSize(24, 24))
    alpha.fill(QtCore.Qt.transparent)
 
    result = QtGui.QPixmap(QtCore.QSize(24, 24))
 
    painter = QtGui.QPainter(result)
 
    brush = QtGui.QBrush(QtCore.Qt.SolidPattern)
    brush.setColor(QtGui.QColor(QtCore.Qt.transparent))
 
    painter.setBrush(brush)
 
    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))
 
    painter.drawImage(QtCore.QRect(0, 0, 24, 24),
                      i1.toImage(),
                      QtCore.QRect(0, 0, 24, 24))
[...]

[...]
i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
    
    alpha = QtGui.QPixmap(QtCore.QSize(24, 24))
    alpha.fill(QtCore.Qt.transparent)
    
    result = QtGui.QPixmap(QtCore.QSize(24, 24))

    painter = QtGui.QPainter(result)

    brush = QtGui.QBrush(QtCore.Qt.SolidPattern)
    brush.setColor(QtGui.QColor(QtCore.Qt.transparent))

    painter.setBrush(brush)

    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))

    painter.drawImage(QtCore.QRect(0, 0, 24, 24),
                      i1.toImage(),
                      QtCore.QRect(0, 0, 24, 24))
[...]

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But it do not work... any other idea ?

[fullmetalcoder]

I've played a bit with a very small code sample and here's what I come to so far :

QPixmap layer1("tv.png"),
            layer2("locked.png"),
            compose(layer1.size());
 
    compose.fill(Qt::transparent);
 
    QPixmap alphacopy = layer2;
    alphacopy.setMask(layer2.mask());
 
    QPainter p(&compose);
    p.drawPixmap(    0,
                    0,
                    layer1);
 
    p.drawPixmap(    layer1.width() - layer2.width(),
                    layer1.height() - layer2.height(),
                    alphacopy);

QPixmap layer1("tv.png"),
            layer2("locked.png"),
            compose(layer1.size());
    
    compose.fill(Qt::transparent);
    
    QPixmap alphacopy = layer2;
    alphacopy.setMask(layer2.mask());
    
    QPainter p(&compose);
    p.drawPixmap(    0,
                    0,
                    layer1);
    
    p.drawPixmap(    layer1.width() - layer2.width(),
                    layer1.height() - layer2.height(),
                    alphacopy);

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Note : I'm not familiar with Python so I preferred posting my C++ code and let you (or someone else) port it to Python. I should not be hard anyway...

Note bis : the tv.png comes from crystalsvg (64x64) and the locked.png I use is a 22x22, renamed, encrypted.png from crystalsvg.

[weepdoo]

Here is how I "translate" it to python:

import sys
from PyQt4 import QtGui, QtCore
 
if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
 
    i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
 
    result = QtGui.QPixmap(QtCore.QSize(24, 24))
    result.fill(QtCore.Qt.transparent)
 
    alpha = QtGui.QPixmap(i2)
    alpha.setMask(i2.mask())
 
    painter = QtGui.QPainter(result)
 
    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       i1,
                       QtCore.QRect(0, 0, 24, 24))
 
    painter.drawPixmap(QtCore.QRect(0, 0, 15, 15),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))
 
    painter.end()
 
    label = QtGui.QLabel()
    label.setPixmap(result)
    label.show()
    sys.exit(app.exec_())

import sys
from PyQt4 import QtGui, QtCore

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    
    i1 = QtGui.QPixmap('qtg_aircraft.png')
    i2 = QtGui.QPixmap('qtg_locked.png')
    
    result = QtGui.QPixmap(QtCore.QSize(24, 24))
    result.fill(QtCore.Qt.transparent)

    alpha = QtGui.QPixmap(i2)
    alpha.setMask(i2.mask())

    painter = QtGui.QPainter(result)

    painter.drawPixmap(QtCore.QRect(0, 0, 24, 24),
                       i1,
                       QtCore.QRect(0, 0, 24, 24))

    painter.drawPixmap(QtCore.QRect(0, 0, 15, 15),
                       alpha,
                       QtCore.QRect(0, 0, 24, 24))

    painter.end()

    label = QtGui.QLabel()
    label.setPixmap(result)
    label.show()
    sys.exit(app.exec_())

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Thank to everyone who help me