#!/usr/bin/env python ############################################################################ ## ## Copyright (C) 2005-2005 Trolltech AS. All rights reserved. ## ## This file is part of the example classes of the Qt Toolkit. ## ## This file may be used under the terms of the GNU General Public ## License version 2.0 as published by the Free Software Foundation ## and appearing in the file LICENSE.GPL included in the packaging of ## this file. Please review the following information to ensure GNU ## General Public Licensing requirements will be met: ## http://www.trolltech.com/products/qt/opensource.html ## ## If you are unsure which license is appropriate for your use, please ## review the following information: ## http://www.trolltech.com/products/qt/licensing.html or contact the ## sales department at sales@trolltech.com. ## ## This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ## WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ## ############################################################################ import sys from PyQt4 import QtCore, QtGui, QtOpenGL try: from OpenGL.GL import * except ImportError: app = QtGui.QApplication(sys.argv) QtGui.QMessageBox.critical(None, "OpenGL textures", "PyOpenGL must be installed to run this example.") sys.exit(1) import textures_rc class GLWidget(QtOpenGL.QGLWidget): clicked = QtCore.pyqtSignal() sharedObject = 0 refCount = 0 coords = ( ( ( +1, -1, -1 ), ( -1, -1, -1 ), ( -1, +1, -1 ), ( +1, +1, -1 ) ), ( ( +1, +1, -1 ), ( -1, +1, -1 ), ( -1, +1, +1 ), ( +1, +1, +1 ) ), ( ( +1, -1, +1 ), ( +1, -1, -1 ), ( +1, +1, -1 ), ( +1, +1, +1 ) ), ( ( -1, -1, -1 ), ( -1, -1, +1 ), ( -1, +1, +1 ), ( -1, +1, -1 ) ), ( ( +1, -1, +1 ), ( -1, -1, +1 ), ( -1, -1, -1 ), ( +1, -1, -1 ) ), ( ( -1, -1, +1 ), ( +1, -1, +1 ), ( +1, +1, +1 ), ( -1, +1, +1 ) ) ) def __init__(self, parent=None, shareWidget=None): super(GLWidget, self).__init__(parent, shareWidget) self.clearColor = QtCore.Qt.black self.xRot = 0 self.yRot = 0 self.zRot = 0 self.clearColor = QtGui.QColor() self.lastPos = QtCore.QPoint() def __del__(self): # If the application is terminating then the order in which things get # garbage collected can cause exceptions to be raised. Therefore we # access the class variables via the instance's __class__ attribute and # ignore some exceptions. self.__class__.refCount -= 1 if self.__class__.refCount == 0: try: self.makeCurrent() except RuntimeError: pass glDeleteLists(self.__class__.sharedObject, 1) def minimumSizeHint(self): return QtCore.QSize(50, 50) def sizeHint(self): return QtCore.QSize(200, 200) def rotateBy(self, xAngle, yAngle, zAngle): self.xRot += xAngle self.yRot += yAngle self.zRot += zAngle self.updateGL() def setClearColor(self, color): self.clearColor = color self.updateGL() def initializeGL(self): if not GLWidget.sharedObject: GLWidget.sharedObject = self.makeObject() GLWidget.refCount += 1 glEnable(GL_DEPTH_TEST) glEnable(GL_CULL_FACE) glEnable(GL_TEXTURE_2D) def paintGL(self): self.qglClearColor(self.clearColor) glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT) glLoadIdentity() glTranslated(0.0, 0.0, -10.0) glRotated(self.xRot / 16.0, 1.0, 0.0, 0.0) glRotated(self.yRot / 16.0, 0.0, 1.0, 0.0) glRotated(self.zRot / 16.0, 0.0, 0.0, 1.0) glCallList(GLWidget.sharedObject) def resizeGL(self, width, height): side = min(width, height) if side < 0: return glViewport((width - side) / 2, (height - side) / 2, side, side) glMatrixMode(GL_PROJECTION) glLoadIdentity() glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0) glMatrixMode(GL_MODELVIEW) def mousePressEvent(self, event): self.lastPos = event.pos() def mouseMoveEvent(self, event): dx = event.x() - self.lastPos.x() dy = event.y() - self.lastPos.y() if event.buttons() & QtCore.Qt.LeftButton: self.rotateBy(8 * dy, 8 * dx, 0) elif event.buttons() & QtCore.Qt.RightButton: self.rotateBy(8 * dy, 0, 8 * dx) self.lastPos = event.pos() def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): dlist = glGenLists(1) glNewList(dlist, GL_COMPILE) for i in range(6): self.bindTexture(QtGui.QPixmap(':/images/side%d.png' % (i + 1))) glBegin(GL_QUADS) for j in range(4): tx = {False: 0, True: 1}[j == 0 or j == 3] ty = {False: 0, True: 1}[j == 0 or j == 1] glTexCoord2d(tx, ty) glVertex3d(0.2 * GLWidget.coords[i][j][0], 0.2 * GLWidget.coords[i][j][1], 0.2 * GLWidget.coords[i][j][2]) glEnd() glEndList() return dlist class Window(QtGui.QWidget): NumRows = 2 NumColumns = 3 def __init__(self): super(Window, self).__init__() mainLayout = QtGui.QGridLayout() self.glWidgets = [] for i in range(Window.NumRows): self.glWidgets.append([]) for j in range(Window.NumColumns): self.glWidgets[i].append(None) for i in range(Window.NumRows): for j in range(Window.NumColumns): clearColor = QtGui.QColor() clearColor.setHsv(((i * Window.NumColumns) + j) * 255 / (Window.NumRows * Window.NumColumns - 1), 255, 63) self.glWidgets[i][j] = GLWidget(self, self.glWidgets[0][0]) self.glWidgets[i][j].setClearColor(clearColor) self.glWidgets[i][j].rotateBy(+42 * 16, +42 * 16, -21 * 16) mainLayout.addWidget(self.glWidgets[i][j], i, j) self.glWidgets[i][j].clicked.connect(self.setCurrentGlWidget) self.setLayout(mainLayout) self.currentGlWidget = self.glWidgets[0][0] timer = QtCore.QTimer(self) timer.timeout.connect(self.rotateOneStep) timer.start(20) self.setWindowTitle("Textures") def setCurrentGlWidget(self): self.currentGlWidget = self.sender() def rotateOneStep(self): if self.currentGlWidget: self.currentGlWidget.rotateBy(+2 * 16, +2 * 16, -1 * 16) if __name__ == '__main__': app = QtGui.QApplication(sys.argv) window = Window() window.show() sys.exit(app.exec_())