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Diffstat (limited to 'examples/opengl/textures/textures.py')
| -rwxr-xr-x | examples/opengl/textures/textures.py | 232 |
1 files changed, 232 insertions, 0 deletions
diff --git a/examples/opengl/textures/textures.py b/examples/opengl/textures/textures.py new file mode 100755 index 000000000..3c91a6024 --- /dev/null +++ b/examples/opengl/textures/textures.py @@ -0,0 +1,232 @@ +#!/usr/bin/env python + +############################################################################ +## +## 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 PySide 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_()) |