diff options
Diffstat (limited to 'examples')
| -rw-r--r-- | examples/opengl/textures/textures.py | 158 |
1 files changed, 88 insertions, 70 deletions
diff --git a/examples/opengl/textures/textures.py b/examples/opengl/textures/textures.py index cbefe41d6..eadf25185 100644 --- a/examples/opengl/textures/textures.py +++ b/examples/opengl/textures/textures.py @@ -2,7 +2,7 @@ ############################################################################ ## ## Copyright (C) 2013 Riverbank Computing Limited. -## Copyright (C) 2016 The Qt Company Ltd. +## Copyright (C) 2022 The Qt Company Ltd. ## Contact: http://www.qt.io/licensing/ ## ## This file is part of the Qt for Python examples of the Qt Toolkit. @@ -40,18 +40,24 @@ ## ############################################################################ -"""PySide6 port of the opengl/textures example from Qt v5.x""" +"""PySide6 port of the opengl/textures example from Qt v6.x showing the use + of legacy OpenGL functions with QOpenGLVersionFunctionsFactory.""" import sys -from PySide6 import QtCore, QtGui, QtWidgets, QtOpenGL +from PySide6.QtCore import QPoint, QSize, Qt, QTimer, Signal +from PySide6.QtGui import QColor, QImage, QSurfaceFormat +from PySide6.QtWidgets import QApplication, QGridLayout, QMessageBox, QWidget +from PySide6.QtOpenGL import (QOpenGLTexture, QOpenGLVersionFunctionsFactory, + QOpenGLVersionProfile) +from PySide6.QtOpenGLWidgets import QOpenGLWidget try: - from OpenGL.GL import * + from OpenGL import GL 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) + app = QApplication(sys.argv) + messageBox = QMessageBox(QMessageBox.Critical, "OpenGL textures", + "PyOpenGL must be installed to run this example.", + QMessageBox.Close) messageBox.setDetailedText("Run:\npip install PyOpenGL PyOpenGL_accelerate") messageBox.exec() sys.exit(1) @@ -59,7 +65,7 @@ except ImportError: import textures_rc -class GLWidget(QtOpenGL.QGLWidget): +class GLWidget(QOpenGLWidget): sharedObject = 0 refCount = 0 @@ -72,118 +78,131 @@ class GLWidget(QtOpenGL.QGLWidget): ( ( -1, -1, +1 ), ( +1, -1, +1 ), ( +1, +1, +1 ), ( -1, +1, +1 ) ) ) - clicked = QtCore.Signal() + clicked = Signal() - def __init__(self, parent, shareWidget): - QtOpenGL.QGLWidget.__init__(self, parent, shareWidget) + def __init__(self, parent): + super().__init__(parent) - self.clearColor = QtCore.Qt.black + self.clearColor = Qt.black self.xRot = 0 self.yRot = 0 self.zRot = 0 - self.clearColor = QtGui.QColor() - self.lastPos = QtCore.QPoint() + self.clearColor = QColor() + self.lastPos = QPoint() + self.funcs = None def freeGLResources(self): GLWidget.refCount -= 1 if GLWidget.refCount == 0: self.makeCurrent() - glDeleteLists(self.__class__.sharedObject, 1) + self.funcs.glDeleteLists(self.__class__.sharedObject, 1) def minimumSizeHint(self): - return QtCore.QSize(50, 50) + return QSize(50, 50) def sizeHint(self): - return QtCore.QSize(200, 200) + return 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() + self.update() def setClearColor(self, color): self.clearColor = color - self.updateGL() + self.update() def initializeGL(self): + profile = QOpenGLVersionProfile() + profile.setVersion(3, 2) + profile.setProfile(QSurfaceFormat.CompatibilityProfile) + self.funcs = QOpenGLVersionFunctionsFactory.get(profile) + self.funcs.initializeOpenGLFunctions() + if not GLWidget.sharedObject: self.textures = [] for i in range(6): - self.textures.append(self.bindTexture(QtGui.QPixmap(f":/images/side{i + 1}.png"))) + image = QImage(f":/images/side{i + 1}.png") + self.textures.append(QOpenGLTexture(image)) GLWidget.sharedObject = self.makeObject() GLWidget.refCount += 1 - glEnable(GL_DEPTH_TEST) - glEnable(GL_CULL_FACE) - glEnable(GL_TEXTURE_2D) + self.funcs.glEnable(GL.GL_DEPTH_TEST) + self.funcs.glEnable(GL.GL_CULL_FACE) + self.funcs.glEnable(GL.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) + self.funcs.glClearColor(self.clearColor.red(), self.clearColor.green(), + self.clearColor.blue(), 1) + self.funcs.glClear(GL.GL_COLOR_BUFFER_BIT | GL.GL_DEPTH_BUFFER_BIT) + self.funcs.glLoadIdentity() + self.funcs.glTranslated(0.0, 0.0, -10.0) + self.funcs.glRotated(self.xRot / 16.0, 1.0, 0.0, 0.0) + self.funcs.glRotated(self.yRot / 16.0, 0.0, 1.0, 0.0) + self.funcs.glRotated(self.zRot / 16.0, 0.0, 0.0, 1.0) + self.funcs.glCallList(GLWidget.sharedObject) def resizeGL(self, width, height): side = min(width, height) - glViewport(int((width - side) / 2), int((height - side) / 2), side, side) + x = int((width - side) / 2) + y = int((height - side) / 2) + self.funcs.glViewport(x, y, side, side) - glMatrixMode(GL_PROJECTION) - glLoadIdentity() - glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0) - glMatrixMode(GL_MODELVIEW) + self.funcs.glMatrixMode(GL.GL_PROJECTION) + self.funcs.glLoadIdentity() + self.funcs.glOrtho(-0.5, +0.5, +0.5, -0.5, 4.0, 15.0) + self.funcs.glMatrixMode(GL.GL_MODELVIEW) def mousePressEvent(self, event): - self.lastPos = QtCore.QPoint(event.pos()) + self.lastPos = event.position().toPoint() def mouseMoveEvent(self, event): - dx = event.x() - self.lastPos.x() - dy = event.y() - self.lastPos.y() + pos = event.position().toPoint() + dx = pos.x() - self.lastPos.x() + dy = pos.y() - self.lastPos.y() - if event.buttons() & QtCore.Qt.LeftButton: + if event.buttons() & Qt.LeftButton: self.rotateBy(8 * dy, 8 * dx, 0) - elif event.buttons() & QtCore.Qt.RightButton: + elif event.buttons() & Qt.RightButton: self.rotateBy(8 * dy, 0, 8 * dx) - self.lastPos = QtCore.QPoint(event.pos()) + self.lastPos = pos def mouseReleaseEvent(self, event): self.clicked.emit() def makeObject(self): - dlist = glGenLists(1) - glNewList(dlist, GL_COMPILE) + dlist = self.funcs.glGenLists(1) + self.funcs.glNewList(dlist, GL.GL_COMPILE) for i in range(6): - glBindTexture(GL_TEXTURE_2D, self.textures[i]) + self.textures[i].bind() - glBegin(GL_QUADS) + self.funcs.glBegin(GL.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]) + self.funcs.glTexCoord2d(tx, ty) + x = 0.2 * GLWidget.coords[i][j][0] + y = 0.2 * GLWidget.coords[i][j][1] + z = 0.2 * GLWidget.coords[i][j][2] + self.funcs.glVertex3d(x, y, z) - glEnd() + self.funcs.glEnd() - glEndList() + self.funcs.glEndList() return dlist -class Window(QtWidgets.QWidget): +class Window(QWidget): NumRows = 2 NumColumns = 3 def __init__(self, parent=None): - QtWidgets.QWidget.__init__(self, parent) + QWidget.__init__(self, parent) - mainLayout = QtWidgets.QGridLayout() + mainLayout = QGridLayout(self) self.glWidgets = [] for i in range(Window.NumRows): @@ -191,26 +210,25 @@ class Window(QtWidgets.QWidget): for j in range(Window.NumColumns): self.glWidgets[i].append(None) + hue_div = (Window.NumRows * Window.NumColumns - 1) 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) + clearColor = QColor() + hue = ((i * Window.NumColumns) + j) * 255 / hue_div + clearColor.setHsv(hue, 255, 63) - self.glWidgets[i][j].clicked.connect(self.setCurrentGlWidget) - qApp.lastWindowClosed.connect(self.glWidgets[i][j].freeGLResources) + glw = GLWidget(self) + self.glWidgets[i][j] = glw + glw.setClearColor(clearColor) + glw.rotateBy(+42 * 16, +42 * 16, -21 * 16) + mainLayout.addWidget(glw, i, j) - self.setLayout(mainLayout) + glw.clicked.connect(self.setCurrentGlWidget) + qApp.lastWindowClosed.connect(glw.freeGLResources) self.currentGlWidget = self.glWidgets[0][0] - timer = QtCore.QTimer(self) + timer = QTimer(self) timer.timeout.connect(self.rotateOneStep) timer.start(20) @@ -225,7 +243,7 @@ class Window(QtWidgets.QWidget): if __name__ == "__main__": - app = QtWidgets.QApplication(sys.argv) + app = QApplication(sys.argv) window = Window() window.show() sys.exit(app.exec()) |