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How to change size of the pixmap image in PyQt4? – Photoshop

first_row = QtGui.QHBoxLayout()

setings_search = QtGui.QVBoxLayout()
search_label = QtGui.QLabel()
search_pixmap = QtGui.QPixmap()
search_pixmap.load('search.png')

#search_pixmap.scaledToWidth(130)
#search_pixmap.scaledToHeight(130)

search_label.setPixmap(search_pixmap)

setings_search.addWidget(search_label)
first_row.addLayout(setings_search)

The image doesn’t resize when I use both scaled and scaledToWidth/Heigth methods.
my window

On the picture I’ve shown what I already have and what I want to have.

Of course I can change size via Photoshop but I wonder how to do it programatically.

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2

Answers


  1. 0

    Try defining paintEvent for your QWidget. However, I only know how to paint the pixmap on an absolute position (posX, poxY), not sure about relative position (i.e., in a QVBoxLayout).

    def paintEvent(self, event):
    qp = QtGui.QPainter()
    search_pixmap = QtGui.QPixmap('search.png')
    qp.drawPixmap(posX, posY, width, height, pixmap.scaled(width, height, transformMode=QtCore.Qt.SmoothTransformation))

    where width and height are dimensions of your scaled pixmap.

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  2. 0

    As ekhumoro says in a comment, just use one of the scaled methods in QPixmap.

    from PyQt4 import QtGui

app = QtGui.QApplication([])

label = QtGui.QLabel()

pixmap = QtGui.QPixmap()
pixmap.load('test.png')
pixmap = pixmap.scaledToWidth(20)
label.setPixmap(pixmap)

label.show()

app.exec_()

    gives exactly the right size.

    enter image description here

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