diff options
Diffstat (limited to 'sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_kernel_qapplication.cpp')
| -rw-r--r-- | sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_kernel_qapplication.cpp | 177 |
1 files changed, 177 insertions, 0 deletions
diff --git a/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_kernel_qapplication.cpp b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_kernel_qapplication.cpp new file mode 100644 index 000000000..d3e371b1e --- /dev/null +++ b/sources/pyside2/doc/codesnippets/doc/src/snippets/code/src_gui_kernel_qapplication.cpp @@ -0,0 +1,177 @@ +/**************************************************************************** +** +** Copyright (C) 2016 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the documentation of PySide2. +** +** $QT_BEGIN_LICENSE:BSD$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** BSD License Usage +** Alternatively, 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." +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +//! [0] +def main(): + if Qt.Q_WS_X11 + useGUI = getenv("DISPLAY") != 0 + else: + useGUI = True + + app = QApplication(sys.argv, useGUI) + + if useGUI: + # start GUI version + ... + else: + # start non-GUI version + ... + return app.exec_() +//! [0] + + +//! [1] +QApplication.setStyle(QWindowsStyle()) +//! [1] + + +//! [2] +def main(): + QApplication.setColorSpec(QApplication.ManyColor) + QApplication app(sys.argv) + ... + return app.exec_() + +//! [2] + + +//! [3] +class MyWidget (QWidget): + # ... + def sizeHint(self): + return QSize(80, 25).expandedTo(QApplication.globalStrut()) +//! [3] + + +//! [4] +def showAllHiddenTopLevelWidgets(): + for widget in QApplication.topLevelWidgets(): + if widget.isHidden(): + widget.show() +//! [4] + + +//! [5] +def updateAllWidgets(): + for widget in QApplication.allWidgets() + widget.update() +//! [5] + + +//! [6] +if __name__ == '__main__': + QApplication.setDesktopSettingsAware(False) + app = QApplication(sys.argv) + # ... + return app.exec_() +//! [6] + + +//! [7] +if (startPos - currentPos).manhattanLength() >= QApplication.startDragDistance(): + startTheDrag() +//! [7] + + +//! [8] +class MyApplication (QApplication): +# ... + def commitData(QSessionManager& manager) + if manager.allowsInteraction(): + ret = QMessageBox.warning( + mainWindow, + QObject.tr("My Application"), + QObject.tr("Save changes to document?"), + QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel) + + if ret == QMessageBox.Save: + manager.release() + if not saveDocument(): + manager.cancel() + elif ret == QMessageBox.Discard: + pass + else: + manager.cancel() + else: + # we did not get permission to interact, then + # do something reasonable instead + pass +//! [8] + + +//! [9] +appname -session id +//! [9] + + +//! [10] +for command in mySession.restartCommand(): + do_something(command) +//! [10] + + +//! [11] +for command in mySession.discardCommand(): + do_something(command) +//! [11] + + +//! [12] +widget = qApp.widgetAt(x, y) +if widget: + widget = widget.window() +//! [12] + + +//! [13] +widget = qApp.widgetAt(point) +if widget: + widget = widget.window() +//! [13] |