############################################################################# ## ## Copyright (C) 2020 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." ## ## $QT_END_LICENSE$ ## ############################################################################# import sys from PySide6.QtWidgets import * from PySide6.QtGui import (QCursor, QDesktopServices, QGuiApplication, QIcon, QKeySequence, QShortcut, QStandardItem, QStandardItemModel, QScreen, QWindow) from PySide6.QtCore import (QDateTime, QDir, QLibraryInfo, QMetaObject, QSysInfo, QTextStream, QTimer, Qt, qVersion) POEM = """Twinkle, twinkle, little star, How I wonder what you are. Up above the world so high, Like a diamond in the sky. Twinkle, twinkle, little star, How I wonder what you arenot""" DIR_OPEN_ICON = ":/qt-project.org/styles/commonstyle/images/diropen-128.png" COMPUTER_ICON = ":/qt-project.org/styles/commonstyle/images/computer-32.png" SYSTEMINFO = """

Python

{}

Qt Build

{}

Operating System

{}

Screens

{} """ def class_name(o): return o.metaObject().className() def help_url(page): """Build a Qt help URL from the page name""" major_version = qVersion().split('.')[0] return "https://doc.qt.io/qt-{}/{}.html".format(major_version, page) def launch_help(widget): """Launch a widget's help page""" url = help_url(class_name(widget).lower()) QDesktopServices.openUrl(url) def launch_module_help(): QDesktopServices.openUrl(help_url("qtwidgets-index")) def init_widget(w, name): """Init a widget for the gallery, give it a tooltip showing the class name""" w.setObjectName(name) w.setToolTip(class_name(w)) def style_names(): """Return a list of styles, default platform style first""" default_style_name = QApplication.style().objectName().lower() result = [] for style in QStyleFactory.keys(): if style.lower() == default_style_name: result.insert(0, style) else: result.append(style) return result def embed_into_hbox_layout(w, margin=5): """Embed a widget into a layout to give it a frame""" result = QWidget() layout = QHBoxLayout(result) layout.setContentsMargins(margin, margin, margin, margin) layout.addWidget(w) return result def format_geometry(rect): """Format a geometry as a X11 geometry specification""" return "{}x{}{:+d}{:+d}".format(rect.width(), rect.height(), rect.x(), rect.y()) def screen_info(widget): """Format information on the screens""" policy = QGuiApplication.highDpiScaleFactorRoundingPolicy() policy_string = str(policy).split('.')[-1] result = "

High DPI scale factor rounding policy: {}

" if current: result += "" result += '"{}" {} {}DPI, DPR={}'.format(screen.name(), format_geometry(screen.geometry()), int(screen.logicalDotsPerInchX()), screen.devicePixelRatio()) if current: result += "" result += "

" return result class WidgetGallery(QDialog): """Dialog displaying a gallery of Qt Widgets""" def __init__(self): super(WidgetGallery, self).__init__() self._progress_bar = self.create_progress_bar() self._style_combobox = QComboBox() init_widget(self._style_combobox, "styleComboBox") self._style_combobox.addItems(style_names()) style_label = QLabel("Style:") init_widget(style_label, "style_label") style_label.setBuddy(self._style_combobox) help_label = QLabel("Press F1 over a widget to see Documentation") init_widget(help_label, "help_label") disable_widgets_checkbox = QCheckBox("Disable widgets") init_widget(disable_widgets_checkbox, "disable_widgets_checkbox") buttons_groupbox = self.create_buttons_groupbox() itemview_tabwidget = self.create_itemview_tabwidget() simple_input_widgets_groupbox = self.create_simple_inputwidgets_groupbox() text_toolbox = self.create_text_toolbox() self._style_combobox.textActivated.connect(self.change_style) disable_widgets_checkbox.toggled.connect(buttons_groupbox.setDisabled) disable_widgets_checkbox.toggled.connect(text_toolbox.setDisabled) disable_widgets_checkbox.toggled.connect(itemview_tabwidget.setDisabled) disable_widgets_checkbox.toggled.connect(simple_input_widgets_groupbox.setDisabled) help_shortcut = QShortcut(self) help_shortcut.setKey(QKeySequence.HelpContents) help_shortcut.activated.connect(self.help_on_current_widget) top_layout = QHBoxLayout() top_layout.addWidget(style_label) top_layout.addWidget(self._style_combobox) top_layout.addStretch(1) top_layout.addWidget(help_label) top_layout.addStretch(1) top_layout.addWidget(disable_widgets_checkbox) dialog_buttonbox = QDialogButtonBox(QDialogButtonBox.Help | QDialogButtonBox.Close) init_widget(dialog_buttonbox, "dialogButtonBox") dialog_buttonbox.helpRequested.connect(launch_module_help) dialog_buttonbox.rejected.connect(self.reject) main_layout = QGridLayout(self) main_layout.addLayout(top_layout, 0, 0, 1, 2) main_layout.addWidget(buttons_groupbox, 1, 0) main_layout.addWidget(simple_input_widgets_groupbox, 1, 1) main_layout.addWidget(itemview_tabwidget, 2, 0) main_layout.addWidget(text_toolbox, 2, 1) main_layout.addWidget(self._progress_bar, 3, 0, 1, 2) main_layout.addWidget(dialog_buttonbox, 4, 0, 1, 2) self.setWindowTitle("Widget Gallery Qt {}".format(qVersion())) def setVisible(self, visible): super(WidgetGallery, self).setVisible(visible) if visible: self.windowHandle().screenChanged.connect(self.update_systeminfo) self.update_systeminfo() def change_style(self, style_name): QApplication.setStyle(QStyleFactory.create(style_name)) def advance_progressbar(self): cur_val = self._progress_bar.value() max_val = self._progress_bar.maximum() self._progress_bar.setValue(cur_val + (max_val - cur_val) / 100) def create_buttons_groupbox(self): result = QGroupBox("Buttons") init_widget(result, "buttons_groupbox") default_pushbutton = QPushButton("Default Push Button") init_widget(default_pushbutton, "default_pushbutton") default_pushbutton.setDefault(True) toggle_pushbutton = QPushButton("Toggle Push Button") init_widget(toggle_pushbutton, "toggle_pushbutton") toggle_pushbutton.setCheckable(True) toggle_pushbutton.setChecked(True) flat_pushbutton = QPushButton("Flat Push Button") init_widget(flat_pushbutton, "flat_pushbutton") flat_pushbutton.setFlat(True) toolbutton = QToolButton() init_widget(toolbutton, "toolButton") toolbutton.setText("Tool Button") menu_toolbutton = QToolButton() init_widget(menu_toolbutton, "menuButton") menu_toolbutton.setText("Menu Button") tool_menu = QMenu(menu_toolbutton) menu_toolbutton.setPopupMode(QToolButton.InstantPopup) tool_menu.addAction("Option") tool_menu.addSeparator() action = tool_menu.addAction("Checkable Option") action.setCheckable(True) menu_toolbutton.setMenu(tool_menu) tool_layout = QHBoxLayout() tool_layout.addWidget(toolbutton) tool_layout.addWidget(menu_toolbutton) commandlinkbutton = QCommandLinkButton("Command Link Button") init_widget(commandlinkbutton, "commandLinkButton") commandlinkbutton.setDescription("Description") button_layout = QVBoxLayout() button_layout.addWidget(default_pushbutton) button_layout.addWidget(toggle_pushbutton) button_layout.addWidget(flat_pushbutton) button_layout.addLayout(tool_layout) button_layout.addWidget(commandlinkbutton) button_layout.addStretch(1) radiobutton_1 = QRadioButton("Radio button 1") init_widget(radiobutton_1, "radioButton1") radiobutton_2 = QRadioButton("Radio button 2") init_widget(radiobutton_2, "radioButton2") radiobutton_3 = QRadioButton("Radio button 3") init_widget(radiobutton_3, "radioButton3") radiobutton_1.setChecked(True) checkbox = QCheckBox("Tri-state check box") init_widget(checkbox, "checkBox") checkbox.setTristate(True) checkbox.setCheckState(Qt.PartiallyChecked) checkableLayout = QVBoxLayout() checkableLayout.addWidget(radiobutton_1) checkableLayout.addWidget(radiobutton_2) checkableLayout.addWidget(radiobutton_3) checkableLayout.addWidget(checkbox) checkableLayout.addStretch(1) main_layout = QHBoxLayout(result) main_layout.addLayout(button_layout) main_layout.addLayout(checkableLayout) main_layout.addStretch() return result def create_text_toolbox(self): result = QToolBox() init_widget(result, "toolBox") # Create centered/italic HTML rich text rich_text = "" for line in POEM.split('\n'): rich_text += "" + line + "" rich_text += "" text_edit = QTextEdit(rich_text) init_widget(text_edit, "textEdit") plain_textedit = QPlainTextEdit(POEM) init_widget(plain_textedit, "plainTextEdit") self._systeminfo_textbrowser = QTextBrowser() init_widget(self._systeminfo_textbrowser, "systemInfoTextBrowser") result.addItem(embed_into_hbox_layout(text_edit), "Text Edit") result.addItem(embed_into_hbox_layout(plain_textedit), "Plain Text Edit") result.addItem(embed_into_hbox_layout(self._systeminfo_textbrowser), "Text Browser") return result def create_itemview_tabwidget(self): result = QTabWidget() init_widget(result, "bottomLeftTabWidget") result.setSizePolicy(QSizePolicy.Preferred, QSizePolicy.Ignored) tree_view = QTreeView() init_widget(tree_view, "treeView") filesystem_model = QFileSystemModel(tree_view) filesystem_model.setRootPath(QDir.rootPath()) tree_view.setModel(filesystem_model) table_widget = QTableWidget() init_widget(table_widget, "tableWidget") table_widget.setRowCount(10) table_widget.setColumnCount(10) list_model = QStandardItemModel(0, 1, result) list_model.appendRow(QStandardItem(QIcon(DIR_OPEN_ICON), "Directory")) list_model.appendRow(QStandardItem(QIcon(COMPUTER_ICON), "Computer")) list_view = QListView() init_widget(list_view, "listView") list_view.setModel(list_model) icon_mode_listview = QListView() init_widget(icon_mode_listview, "iconModeListView") icon_mode_listview.setViewMode(QListView.IconMode) icon_mode_listview.setModel(list_model) result.addTab(embed_into_hbox_layout(tree_view), "Tree View") result.addTab(embed_into_hbox_layout(table_widget), "Table") result.addTab(embed_into_hbox_layout(list_view), "List") result.addTab(embed_into_hbox_layout(icon_mode_listview), "Icon Mode List") return result def create_simple_inputwidgets_groupbox(self): result = QGroupBox("Simple Input Widgets") init_widget(result, "bottomRightGroupBox") result.setCheckable(True) result.setChecked(True) lineedit = QLineEdit("s3cRe7") init_widget(lineedit, "lineEdit") lineedit.setClearButtonEnabled(True) lineedit.setEchoMode(QLineEdit.Password) spin_box = QSpinBox() init_widget(spin_box, "spinBox") spin_box.setValue(50) date_timeedit = QDateTimeEdit() init_widget(date_timeedit, "dateTimeEdit") date_timeedit.setDateTime(QDateTime.currentDateTime()) slider = QSlider() init_widget(slider, "slider") slider.setOrientation(Qt.Horizontal) slider.setValue(40) scrollbar = QScrollBar() init_widget(scrollbar, "scrollBar") scrollbar.setOrientation(Qt.Horizontal) scrollbar.setValue(60) dial = QDial() init_widget(dial, "dial") dial.setValue(30) dial.setNotchesVisible(True) layout = QGridLayout(result) layout.addWidget(lineedit, 0, 0, 1, 2) layout.addWidget(spin_box, 1, 0, 1, 2) layout.addWidget(date_timeedit, 2, 0, 1, 2) layout.addWidget(slider, 3, 0) layout.addWidget(scrollbar, 4, 0) layout.addWidget(dial, 3, 1, 2, 1) layout.setRowStretch(5, 1) return result def create_progress_bar(self): result = QProgressBar() init_widget(result, "progressBar") result.setRange(0, 10000) result.setValue(0) timer = QTimer(self) timer.timeout.connect(self.advance_progressbar) timer.start(1000) return result def update_systeminfo(self): """Display system information""" system_info = SYSTEMINFO.format(sys.version, QLibraryInfo.build(), QSysInfo.prettyProductName(), screen_info(self)) self._systeminfo_textbrowser.setHtml(system_info) def help_on_current_widget(self): """Display help on widget under mouse""" w = QApplication.widgetAt(QCursor.pos(self.screen())) while w: # Skip over internal widgets name = w.objectName() if name and not name.startswith("qt_"): launch_help(w) break w = w.parentWidget()