diff options
Diffstat (limited to 'examples/widgets/mainwindows/mdi/mdi.py')
| -rw-r--r-- | examples/widgets/mainwindows/mdi/mdi.py | 195 |
1 files changed, 87 insertions, 108 deletions
diff --git a/examples/widgets/mainwindows/mdi/mdi.py b/examples/widgets/mainwindows/mdi/mdi.py index a6ea6284d..c1fa01b8c 100644 --- a/examples/widgets/mainwindows/mdi/mdi.py +++ b/examples/widgets/mainwindows/mdi/mdi.py @@ -1,44 +1,6 @@ - -############################################################################# -## -## Copyright (C) 2013 Riverbank Computing Limited. -## Copyright (C) 2021 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." -## -## $QT_END_LICENSE$ -## -############################################################################# +# Copyright (C) 2013 Riverbank Computing Limited. +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause """PySide6 port of the widgets/mainwindows/mdi example from Qt v5.x, originating from PyQt""" @@ -46,13 +8,13 @@ from argparse import ArgumentParser, RawTextHelpFormatter from functools import partial import sys -from PySide6.QtCore import (QByteArray, QFile, QFileInfo, QPoint, QSettings, - QSaveFile, QSize, QTextStream, Qt) +from PySide6.QtCore import (QByteArray, QFile, QFileInfo, QSettings, + QSaveFile, QTextStream, Qt, Slot) from PySide6.QtGui import QAction, QIcon, QKeySequence from PySide6.QtWidgets import (QApplication, QFileDialog, QMainWindow, - QMdiArea, QMessageBox, QTextEdit, QWidget) + QMdiArea, QMessageBox, QTextEdit) -import mdi_rc +import PySide6.QtExampleIcons # noqa: F401 class MdiChild(QTextEdit): @@ -81,9 +43,8 @@ class MdiChild(QTextEdit): return False instr = QTextStream(file) - QApplication.setOverrideCursor(Qt.WaitCursor) - self.setPlainText(instr.readAll()) - QApplication.restoreOverrideCursor() + with QApplication.setOverrideCursor(Qt.WaitCursor): + self.setPlainText(instr.readAll()) self.set_current_file(fileName) @@ -106,18 +67,17 @@ class MdiChild(QTextEdit): def save_file(self, fileName): error = None - QApplication.setOverrideCursor(Qt.WaitCursor) - file = QSaveFile(fileName) - if file.open(QFile.WriteOnly | QFile.Text): - outstr = QTextStream(file) - outstr << self.toPlainText() - if not file.commit(): + with QApplication.setOverrideCursor(Qt.WaitCursor): + file = QSaveFile(fileName) + if file.open(QFile.WriteOnly | QFile.Text): + outstr = QTextStream(file) + outstr << self.toPlainText() + if not file.commit(): + reason = file.errorString() + error = f"Cannot write file {fileName}:\n{reason}." + else: reason = file.errorString() - error = f"Cannot write file {fileName}:\n{reason}." - else: - reason = file.errorString() - error = f"Cannot open file {fileName}:\n{reason}." - QApplication.restoreOverrideCursor() + error = f"Cannot open file {fileName}:\n{reason}." if error: QMessageBox.warning(self, "MDI", error) @@ -146,7 +106,7 @@ class MdiChild(QTextEdit): f = self.user_friendly_current_file() message = f"'{f}' has been modified.\nDo you want to save your changes?" ret = QMessageBox.warning(self, "MDI", message, - QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel) + QMessageBox.Save | QMessageBox.Discard | QMessageBox.Cancel) if ret == QMessageBox.Save: return self.save() @@ -196,11 +156,13 @@ class MainWindow(QMainWindow): self.write_settings() event.accept() + @Slot() def new_file(self): child = self.create_mdi_child() child.new_file() child.show() + @Slot() def open(self): file_name, _ = QFileDialog.getOpenFileName(self) if file_name: @@ -218,31 +180,38 @@ class MainWindow(QMainWindow): else: child.close() + @Slot() def save(self): if self.active_mdi_child() and self.active_mdi_child().save(): self.statusBar().showMessage("File saved", 2000) + @Slot() def save_as(self): if self.active_mdi_child() and self.active_mdi_child().save_as(): self.statusBar().showMessage("File saved", 2000) + @Slot() def cut(self): if self.active_mdi_child(): self.active_mdi_child().cut() + @Slot() def copy(self): if self.active_mdi_child(): self.active_mdi_child().copy() + @Slot() def paste(self): if self.active_mdi_child(): self.active_mdi_child().paste() + @Slot() def about(self): QMessageBox.about(self, "About MDI", - "The <b>MDI</b> example demonstrates how to write multiple " - "document interface applications using Qt.") + "The <b>MDI</b> example demonstrates how to write multiple " + "document interface applications using Qt.") + @Slot() def update_menus(self): has_mdi_child = (self.active_mdi_child() is not None) self._save_act.setEnabled(has_mdi_child) @@ -256,11 +225,12 @@ class MainWindow(QMainWindow): self._previous_act.setEnabled(has_mdi_child) self._separator_act.setVisible(has_mdi_child) - has_selection = (self.active_mdi_child() is not None and - self.active_mdi_child().textCursor().hasSelection()) + has_selection = (self.active_mdi_child() is not None + and self.active_mdi_child().textCursor().hasSelection()) self._cut_act.setEnabled(has_selection) self._copy_act.setEnabled(has_selection) + @Slot() def update_window_menu(self): self._window_menu.clear() self._window_menu.addAction(self._close_act) @@ -301,82 +271,85 @@ class MainWindow(QMainWindow): def create_actions(self): - icon = QIcon.fromTheme("document-new", QIcon(':/images/new.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.DocumentNew) self._new_act = QAction(icon, "&New", self, - shortcut=QKeySequence.New, statusTip="Create a new file", - triggered=self.new_file) + shortcut=QKeySequence.New, statusTip="Create a new file", + triggered=self.new_file) - icon = QIcon.fromTheme("document-open", QIcon(':/images/open.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.DocumentOpen) self._open_act = QAction(icon, "&Open...", self, - shortcut=QKeySequence.Open, statusTip="Open an existing file", - triggered=self.open) + shortcut=QKeySequence.Open, statusTip="Open an existing file", + triggered=self.open) - icon = QIcon.fromTheme("document-save", QIcon(':/images/save.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.DocumentSave) self._save_act = QAction(icon, "&Save", self, - shortcut=QKeySequence.Save, - statusTip="Save the document to disk", triggered=self.save) + shortcut=QKeySequence.Save, + statusTip="Save the document to disk", triggered=self.save) self._save_as_act = QAction("Save &As...", self, - shortcut=QKeySequence.SaveAs, - statusTip="Save the document under a new name", - triggered=self.save_as) + shortcut=QKeySequence.SaveAs, + statusTip="Save the document under a new name", + triggered=self.save_as) - self._exit_act = QAction("E&xit", self, shortcut=QKeySequence.Quit, - statusTip="Exit the application", - triggered=QApplication.instance().closeAllWindows) + icon = QIcon.fromTheme(QIcon.ThemeIcon.ApplicationExit) + self._exit_act = QAction(icon, "E&xit", self, shortcut=QKeySequence.Quit, + statusTip="Exit the application", + triggered=QApplication.instance().closeAllWindows) - icon = QIcon.fromTheme("edit-cut", QIcon(':/images/cut.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.EditCut) self._cut_act = QAction(icon, "Cu&t", self, - shortcut=QKeySequence.Cut, - statusTip="Cut the current selection's contents to the clipboard", - triggered=self.cut) + shortcut=QKeySequence.Cut, + statusTip="Cut the current selection's contents to the clipboard", + triggered=self.cut) - icon = QIcon.fromTheme("edit-copy", QIcon(':/images/copy.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.EditCopy) self._copy_act = QAction(icon, "&Copy", self, - shortcut=QKeySequence.Copy, - statusTip="Copy the current selection's contents to the clipboard", - triggered=self.copy) + shortcut=QKeySequence.Copy, + statusTip="Copy the current selection's contents to the clipboard", + triggered=self.copy) - icon = QIcon.fromTheme("edit-paste", QIcon(':/images/paste.png')) + icon = QIcon.fromTheme(QIcon.ThemeIcon.EditPaste) self._paste_act = QAction(icon, "&Paste", self, - shortcut=QKeySequence.Paste, - statusTip="Paste the clipboard's contents into the current selection", - triggered=self.paste) + shortcut=QKeySequence.Paste, + statusTip="Paste the clipboard's contents into the current " + "selection", + triggered=self.paste) self._close_act = QAction("Cl&ose", self, - statusTip="Close the active window", - triggered=self._mdi_area.closeActiveSubWindow) + statusTip="Close the active window", + triggered=self._mdi_area.closeActiveSubWindow) self._close_all_act = QAction("Close &All", self, - statusTip="Close all the windows", - triggered=self._mdi_area.closeAllSubWindows) + statusTip="Close all the windows", + triggered=self._mdi_area.closeAllSubWindows) self._tile_act = QAction("&Tile", self, statusTip="Tile the windows", - triggered=self._mdi_area.tileSubWindows) + triggered=self._mdi_area.tileSubWindows) self._cascade_act = QAction("&Cascade", self, - statusTip="Cascade the windows", - triggered=self._mdi_area.cascadeSubWindows) + statusTip="Cascade the windows", + triggered=self._mdi_area.cascadeSubWindows) self._next_act = QAction("Ne&xt", self, shortcut=QKeySequence.NextChild, - statusTip="Move the focus to the next window", - triggered=self._mdi_area.activateNextSubWindow) + statusTip="Move the focus to the next window", + triggered=self._mdi_area.activateNextSubWindow) self._previous_act = QAction("Pre&vious", self, - shortcut=QKeySequence.PreviousChild, - statusTip="Move the focus to the previous window", - triggered=self._mdi_area.activatePreviousSubWindow) + shortcut=QKeySequence.PreviousChild, + statusTip="Move the focus to the previous window", + triggered=self._mdi_area.activatePreviousSubWindow) self._separator_act = QAction(self) self._separator_act.setSeparator(True) - self._about_act = QAction("&About", self, - statusTip="Show the application's About box", - triggered=self.about) + icon = QIcon.fromTheme(QIcon.ThemeIcon.HelpAbout) + self._about_act = QAction(icon, "&About", self, + statusTip="Show the application's About box", + triggered=self.about) self._about_qt_act = QAction("About &Qt", self, - statusTip="Show the Qt library's About box", - triggered=QApplication.instance().aboutQt) + statusTip="Show the Qt library's About box", + triggered=QApplication.instance().aboutQt) def create_menus(self): self._file_menu = self.menuBar().addMenu("&File") @@ -442,6 +415,7 @@ class MainWindow(QMainWindow): return window return None + @Slot() def switch_layout_direction(self): if self.layoutDirection() == Qt.LeftToRight: QApplication.setLayoutDirection(Qt.RightToLeft) @@ -461,6 +435,11 @@ if __name__ == '__main__': options = argument_parser.parse_args() app = QApplication(sys.argv) + + icon_paths = QIcon.themeSearchPaths() + QIcon.setThemeSearchPaths(icon_paths + [":/qt-project.org/icons"]) + QIcon.setFallbackThemeName("example_icons") + main_win = MainWindow() for f in options.files: main_win.load(f) |