[Moved] How to rotate QPushButton?

[jesuisbenjamin]

I would like to rotate a QPushButton (or at least its text) so it can stand vertically. I've seen "some documentation online":http://developer.qt.nokia.com/faq/answer/how_can_i_draw_vertical_text , but I couldn't make much sense out of it (it's in C and I'm a Python user).

So I understood I need to re-implement the paintEvent() handler and rotate the QPainter(). What I can't figure out however is how to do this for the QString or QPushButton I need only. I supposed the QPaintEvent would have a "sender" attribute, like signals do, but it hasn't. All I can seem to get from this event is a QRect or QRegion. How can I find out the event specific to my button or its label?

Thanks.

[Rahul Das]

If you want the result like in the "doc":http://developer.qt.nokia.com/faq/answer/how_can_i_draw_vertical_text you mentioned,
ie,

t
e
x
t

@QString tmp = "t\ne\nx\nt";
ui->pushButton->setText(tmp);@ this would also do. \n after every char ;)

I know, its a dirty workaround, nevermind ;)

[jesuisbenjamin]

Thanks, but I want rotation :)

On StackOverflow, I've been pointed to this doc: http://www.qtcentre.org/wiki/index.php?title=OrientationButton

Which is also in C. Now I'll try something from there. I realise I need to reimplement the QPushButton's paintEvent and not the main widget's :D

[Rahul Das]

Yes, you have to reimplement the PushButtons paint event. Its clear in that example. Actually, i believe, the "link":http://www.qtcentre.org/wiki/index.php?title=OrientationButton solves all your problems!?

[jesuisbenjamin]

Yes, but it doesn't solve the fact I'm C-illiterate though :D
I will try my best and come back if I need help for Pythonic translation.

[Rahul Das]

Well, then you are talking to a Python-illiterate!! Good luck anyway :)

[jesuisbenjamin]

Hoping someone here is familiar with PyQt4, so far I tried the following, which failed:

@#!/usr/bin/env python

from PyQt4 import QtGui, QtCore
import sys

class RotatedButton(QtGui.QPushButton):
def init(self, text, parent, orientation = "west"):
QtGui.QPushButton.init(self, text, parent)
self.orientation = orientation

def paintEvent(self, event):
    painter = QtGui.QStylePainter(self)
    if self.orientation == 'west':
        painter.rotate(90)
    elif self.orientation == 'east':
        painter.rotate(270)
    else:
        raise TypeError
    painter.drawControl(QtGui.QStyle.CE_PushButton, self.getSyleOptions())


def getSyleOptions(self):

    options = QtGui.QStyleOptionButton()
    options.initFrom(self)        
    size = options.rect.size()
    size.transpose()
    options.rect.setSize(size)
    options.features = QtGui.QStyleOptionButton.None
    options.text = self.text()
    options.icon = self.icon()
    options.iconSize = self.iconSize()
    return options

class Main(QtGui.QFrame):
def init(self):
QtGui.QFrame.init(self)

    self.count = 0
    self.application = QtCore.QCoreApplication.instance()
    self.layout = QtGui.QHBoxLayout()
    self.button = RotatedButton("Hello", self, orientation="west")
    self.layout.addWidget(self.button)
    self.setLayout(self.layout)

@

Any suggestion?

[andre]

Check out LibQxt. It supports rotated buttons in its "QxtPushButton":http://libqxt.bitbucket.org/doc/0.6/qxtpushbutton.html class.

P.S. Note that the suff you refered to is in C++, not in C. There is quite a big difference.

[jesuisbenjamin]

Thanks Andre. Are there Python bindings for this too?

[quote author="Andre" date="1315469791"]Check out LibQxt. It supports rotated buttons in its "QxtPushButton":http://libqxt.bitbucket.org/doc/0.6/qxtpushbutton.html class.

P.S. Note that the suff you refered to is in C++, not in C. There is quite a big difference. [/quote]

[jesuisbenjamin]

I got help from StackOverflow, and the "above example":http://www.qtcentre.org/wiki/index.php?title=OrientationButton was translated to Python properly. Now I need to figure out what it's really doing :)

@#!/usr/bin/env python

from PyQt4 import QtGui, QtCore
import sys

class RotatedButton(QtGui.QPushButton):
def init(self, text, parent, orientation = "west"):
super(RotatedButton,self).init(text, parent)
self.orientation = orientation

def paintEvent(self, event):
    painter = QtGui.QStylePainter(self)
    painter.rotate(90)
    painter.translate(0, -1 * self.width());
    painter.drawControl(QtGui.QStyle.CE_PushButton, self.getSyleOptions())

def minimumSizeHint(self):
    size = super(RotatedButton, self).minimumSizeHint()
    size.transpose()
    return size

def sizeHint(self):
    size = super(RotatedButton, self).sizeHint()
    size.transpose()
    return size

def getSyleOptions(self):
    options = QtGui.QStyleOptionButton()
    options.initFrom(self)
    size = options.rect.size()
    size.transpose()
    options.rect.setSize(size)
    options.features = QtGui.QStyleOptionButton.None
    if self.isFlat():
        options.features |= QtGui.QStyleOptionButton.Flat
    if self.menu():
        options.features |= QtGui.QStyleOptionButton.HasMenu
    if self.autoDefault() or self.isDefault():
        options.features |= QtGui.QStyleOptionButton.AutoDefaultButton
    if self.isDefault():
        options.features |= QtGui.QStyleOptionButton.DefaultButton
    if self.isDown() or (self.menu() and self.menu().isVisible()):
        options.state |= QtGui.QStyle.State_Sunken
    if self.isChecked():
        options.state |= QtGui.QStyle.State_On
    if not self.isFlat() and not self.isDown():
        options.state |= QtGui.QStyle.State_Raised

    options.text = self.text()
    options.icon = self.icon()
    options.iconSize = self.iconSize()
    return options

class Main(QtGui.QFrame):
def init(self):
QtGui.QFrame.init(self)

    self.application = QtCore.QCoreApplication.instance()
    self.layout = QtGui.QHBoxLayout()
    self.button = RotatedButton("Hello", self, orientation="west")
    self.layout.addWidget(self.button)
    self.setLayout(self.layout)

if name == 'main':

application = QtGui.QApplication(sys.argv)
application.main = Main()
application.main.show()
sys.exit(application.exec_())

@