############################################################################ ## ## Copyright (C) 2013 Riverbank Computing Limited. ## Copyright (C) 2016 The Qt Company Ltd. ## Contact: http://www.qt.io/licensing/ ## ## This file is part of the Qt for Python examples of the Qt Toolkit. ## ## $QT_BEGIN_LICENSE:BSD$ ## You may use this file under the terms of the BSD license as follows: ## ## "Redistribution and use in source and binary forms, with or without ## modification, are permitted provided that the following conditions are ## met: ## * Redistributions of source code must retain the above copyright ## notice, this list of conditions and the following disclaimer. ## * Redistributions in binary form must reproduce the above copyright ## notice, this list of conditions and the following disclaimer in ## the documentation and/or other materials provided with the ## distribution. ## * Neither the name of The Qt Company Ltd nor the names of its ## contributors may be used to endorse or promote products derived ## from this software without specific prior written permission. ## ## ## THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS ## "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT ## LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR ## A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT ## OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, ## SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT ## LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, ## DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY ## THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT ## (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE ## OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." ## ## $QT_END_LICENSE$ ## ############################################################################ """PySide2 port of the opengl/textures example from Qt v5.x""" import sys from PySide2 import QtCore, QtGui, QtWidgets, QtOpenGL try: from OpenGL.GL import * except ImportError: app = QtWidgets.QApplication(sys.argv) messageBox = QtWidgets.QMessageBox(QtWidgets.QMessageBox.Critical, "OpenGL textures", "PyOpenGL must be installed to run this example.", QtWidgets.QMessageBox.Close) messageBox.setDetailedText("Run:\npip install PyOpenGL PyOpenGL_accelerate") messageBox.exec_() sys.exit(1) import textures_rc class GLWidget(QtOpenGL.QGLWidget): 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 ) ) ) clicked = QtCore.Signal() def __init__(self, parent, shareWidget): QtOpenGL.QGLWidget.__init__(self, 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 freeGLResources(self): GLWidget.refCount -= 1 if GLWidget.refCount == 0: self.makeCurrent() 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 = (self.xRot + xAngle) % 5760 self.yRot = (self.yRot + yAngle) % 5760 self.zRot = (self.zRot + zAngle) % 5760 self.updateGL() def setClearColor(self, color): self.clearColor = color self.updateGL() def initializeGL(self): if not GLWidget.sharedObject: self.textures = [] for i in range(6): self.textures.append(self.bindTexture(QtGui.QPixmap(":/images/side%d.png" % (i + 1)))) 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) glViewport(int((width - side) / 2), int((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 = QtCore.QPoint(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 = QtCore.QPoint(event.pos()) def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): dlist = glGenLists(1) glNewList(dlist, GL_COMPILE) for i in range(6): glBindTexture(GL_TEXTURE_2D, self.textures[i]) 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(QtWidgets.QWidget): NumRows = 2 NumColumns = 3 def __init__(self, parent=None): QtWidgets.QWidget.__init__(self, parent) mainLayout = QtWidgets.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) QtWidgets.qApp.lastWindowClosed.connect(self.glWidgets[i][j].freeGLResources) self.setLayout(mainLayout) self.currentGlWidget = self.glWidgets[0][0] timer = QtCore.QTimer(self) timer.timeout.connect(self.rotateOneStep) timer.start(20) self.setWindowTitle(self.tr("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 = QtWidgets.QApplication(sys.argv) window = Window() window.show() sys.exit(app.exec_())