diff options
Diffstat (limited to 'examples/widgets/widgets/charactermap/mainwindow.py')
| -rw-r--r-- | examples/widgets/widgets/charactermap/mainwindow.py | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/examples/widgets/widgets/charactermap/mainwindow.py b/examples/widgets/widgets/charactermap/mainwindow.py new file mode 100644 index 000000000..d79285def --- /dev/null +++ b/examples/widgets/widgets/charactermap/mainwindow.py @@ -0,0 +1,167 @@ +# Copyright (C) 2022 The Qt Company Ltd. +# SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause + +from PySide6.QtCore import Qt, QSignalBlocker, Slot +from PySide6.QtGui import QGuiApplication, QClipboard, QFont, QFontDatabase +from PySide6.QtWidgets import (QCheckBox, QComboBox, QFontComboBox, + QHBoxLayout, QLabel, QLineEdit, QMainWindow, + QPushButton, QScrollArea, + QVBoxLayout, QWidget) + +from characterwidget import CharacterWidget +from fontinfodialog import FontInfoDialog + + +class MainWindow(QMainWindow): + + def __init__(self, parent=None): + super().__init__(parent) + + self._character_widget = CharacterWidget() + self._filter_combo = QComboBox() + self._style_combo = QComboBox() + self._size_combo = QComboBox() + self._font_combo = QFontComboBox() + self._line_edit = QLineEdit() + self._scroll_area = QScrollArea() + self._font_merging = QCheckBox() + + file_menu = self.menuBar().addMenu("File") + file_menu.addAction("Quit", self.close) + help_menu = self.menuBar().addMenu("Help") + help_menu.addAction("Show Font Info", self.show_info) + help_menu.addAction("About &Qt", qApp.aboutQt) # noqa: F821 + + central_widget = QWidget() + + self._filter_label = QLabel("Filter:") + self._filter_combo = QComboBox() + self._filter_combo.addItem("All", int(QFontComboBox.AllFonts.value)) + self._filter_combo.addItem("Scalable", int(QFontComboBox.ScalableFonts.value)) + self._filter_combo.addItem("Monospaced", int(QFontComboBox.MonospacedFonts.value)) + self._filter_combo.addItem("Proportional", int(QFontComboBox.ProportionalFonts.value)) + self._filter_combo.setCurrentIndex(0) + self._filter_combo.currentIndexChanged.connect(self.filter_changed) + + self._font_label = QLabel("Font:") + self._font_combo = QFontComboBox() + self._size_label = QLabel("Size:") + self._size_combo = QComboBox() + self._style_label = QLabel("Style:") + self._style_combo = QComboBox() + self._font_merging_label = QLabel("Automatic Font Merging:") + self._font_merging = QCheckBox() + self._font_merging.setChecked(True) + + self._scroll_area = QScrollArea() + self._character_widget = CharacterWidget() + self._scroll_area.setWidget(self._character_widget) + self.find_styles(self._font_combo.currentFont()) + self.find_sizes(self._font_combo.currentFont()) + + self._line_edit = QLineEdit() + self._line_edit.setClearButtonEnabled(True) + self._clipboard_button = QPushButton("To clipboard") + self._font_combo.currentFontChanged.connect(self.find_styles) + self._font_combo.currentFontChanged.connect(self.find_sizes) + self._font_combo.currentFontChanged.connect(self._character_widget.update_font) + self._size_combo.currentTextChanged.connect(self._character_widget.update_size) + self._style_combo.currentTextChanged.connect(self._character_widget.update_style) + self._character_widget.character_selected.connect(self.insert_character) + + self._clipboard_button.clicked.connect(self.update_clipboard) + self._font_merging.toggled.connect(self._character_widget.update_font_merging) + + controls_layout = QHBoxLayout() + controls_layout.addWidget(self._filter_label) + controls_layout.addWidget(self._filter_combo, 1) + controls_layout.addWidget(self._font_label) + controls_layout.addWidget(self._font_combo, 1) + controls_layout.addWidget(self._size_label) + controls_layout.addWidget(self._size_combo, 1) + controls_layout.addWidget(self._style_label) + controls_layout.addWidget(self._style_combo, 1) + controls_layout.addWidget(self._font_merging_label) + controls_layout.addWidget(self._font_merging, 1) + controls_layout.addStretch(1) + + line_layout = QHBoxLayout() + line_layout.addWidget(self._line_edit, 1) + line_layout.addSpacing(12) + line_layout.addWidget(self._clipboard_button) + + central_layout = QVBoxLayout(central_widget) + central_layout.addLayout(controls_layout) + central_layout.addWidget(self._scroll_area, 1) + central_layout.addSpacing(4) + central_layout.addLayout(line_layout) + + self.setCentralWidget(central_widget) + self.setWindowTitle("Character Map") + + @Slot(QFont) + def find_styles(self, font): + current_item = self._style_combo.currentText() + self._style_combo.clear() + styles = QFontDatabase.styles(font.family()) + for style in styles: + self._style_combo.addItem(style) + + style_index = self._style_combo.findText(current_item) + + if style_index == -1: + self._style_combo.setCurrentIndex(0) + else: + self._style_combo.setCurrentIndex(style_index) + + @Slot(int) + def filter_changed(self, f): + filter = QFontComboBox.FontFilter(self._filter_combo.itemData(f)) + self._font_combo.setFontFilters(filter) + count = self._font_combo.count() + self.statusBar().showMessage(f"{count} font(s) found") + + @Slot(QFont) + def find_sizes(self, font): + current_size = self._size_combo.currentText() + with QSignalBlocker(self._size_combo): + # sizeCombo signals are now blocked until end of scope + self._size_combo.clear() + + style = QFontDatabase.styleString(font) + if QFontDatabase.isSmoothlyScalable(font.family(), style): + sizes = QFontDatabase.standardSizes() + for size in sizes: + self._size_combo.addItem(f"{size}") + self._size_combo.setEditable(True) + else: + sizes = QFontDatabase.smoothSizes(font.family(), style) + for size in sizes: + self._size_combo.addItem(f"{size}") + self._size_combo.setEditable(False) + + size_index = self._size_combo.findText(current_size) + + if size_index == -1: + self._size_combo.setCurrentIndex(max(0, self._size_combo.count() / 3)) + else: + self._size_combo.setCurrentIndex(size_index) + + @Slot(str) + def insert_character(self, character): + self._line_edit.insert(character) + + @Slot() + def update_clipboard(self): + clipboard = QGuiApplication.clipboard() + clipboard.setText(self._line_edit.text(), QClipboard.Clipboard) + clipboard.setText(self._line_edit.text(), QClipboard.Selection) + + @Slot() + def show_info(self): + screen_geometry = self.screen().geometry() + dialog = FontInfoDialog(self) + dialog.setWindowTitle("Fonts") + dialog.setAttribute(Qt.WA_DeleteOnClose) + dialog.resize(screen_geometry.width() / 4, screen_geometry.height() / 4) + dialog.show() |