#!/usr/bin/env python
# -*- coding: utf-8 -*-
import sys
import PySide
sys.modules['PyQt4'] = PySide # HACK for ImageQt
from PySide import QtCore, QtGui
import Image
import ImageQt
import ImageEnhance
import time
class TestWidget(QtGui.QWidget):
def __init__(self, parent=None):
QtGui.QWidget.__init__(self, parent)
self.scene = QtGui.QGraphicsScene()
self.view = QtGui.QGraphicsView(self.scene)
self.button = QtGui.QPushButton("Do test")
layout = QtGui.QVBoxLayout()
layout.addWidget(self.button)
layout.addWidget(self.view)
self.setLayout(layout)
self.button.clicked.connect(self.do_test)
def do_test(self):
img = Image.open('image.png')
enhancer = ImageEnhance.Brightness(img)
for i in range(1, 8):
img = enhancer.enhance(i)
self.display_image(img)
QtCore.QCoreApplication.processEvents() # let Qt do his work
time.sleep(0.5)
def display_image(self, img):
self.scene.clear()
w, h = img.size
self.imgQ = ImageQt.ImageQt(img) # we need to hold reference to imgQ, or it will crash
pixMap = QtGui.QPixmap.fromImage(self.imgQ)
self.scene.addPixmap(pixMap)
self.view.fitInView(QtCore.QRectF(0, 0, w, h), QtCore.Qt.KeepAspectRatio)
self.scene.update()
if __name__ == "__main__":
app = QtGui.QApplication(sys.argv)
widget = TestWidget()
widget.resize(640, 480)
widget.show()
sys.exit(app.exec_())