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Diffstat (limited to 'examples/widgets/widgets/charactermap/mainwindow.cpp')
-rw-r--r-- | examples/widgets/widgets/charactermap/mainwindow.cpp | 264 |
1 files changed, 0 insertions, 264 deletions
diff --git a/examples/widgets/widgets/charactermap/mainwindow.cpp b/examples/widgets/widgets/charactermap/mainwindow.cpp deleted file mode 100644 index fcc00f9642..0000000000 --- a/examples/widgets/widgets/charactermap/mainwindow.cpp +++ /dev/null @@ -1,264 +0,0 @@ -// Copyright (C) 2016 The Qt Company Ltd. -// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause - -#include "mainwindow.h" -#include "characterwidget.h" - -#include <QApplication> -#include <QBoxLayout> -#include <QCheckBox> -#include <QClipboard> -#include <QDialog> -#include <QDialogButtonBox> -#include <QFontComboBox> -#include <QLabel> -#include <QLineEdit> -#include <QMenuBar> -#include <QPlainTextEdit> -#include <QPushButton> -#include <QScreen> -#include <QScrollArea> -#include <QStatusBar> -#include <QTextStream> - -//! [0] -Q_DECLARE_METATYPE(QFontComboBox::FontFilter) - -MainWindow::MainWindow(QWidget *parent) - : QMainWindow(parent) -{ - QMenu *fileMenu = menuBar()->addMenu(tr("File")); - fileMenu->addAction(tr("Quit"), this, &QWidget::close); - QMenu *helpMenu = menuBar()->addMenu(tr("&Help")); - helpMenu->addAction(tr("Show Font Info"), this, &MainWindow::showInfo); - helpMenu->addAction(tr("About &Qt"), qApp, &QApplication::aboutQt); - - QWidget *centralWidget = new QWidget; - - QLabel *filterLabel = new QLabel(tr("Filter:")); - filterCombo = new QComboBox; - filterCombo->addItem(tr("All"), QVariant::fromValue(QFontComboBox::AllFonts)); - filterCombo->addItem(tr("Scalable"), QVariant::fromValue(QFontComboBox::ScalableFonts)); - filterCombo->addItem(tr("Monospaced"), QVariant::fromValue(QFontComboBox::MonospacedFonts)); - filterCombo->addItem(tr("Proportional"), QVariant::fromValue(QFontComboBox::ProportionalFonts)); - filterCombo->setCurrentIndex(0); - connect(filterCombo, &QComboBox::currentIndexChanged, - this, &MainWindow::filterChanged); - - QLabel *fontLabel = new QLabel(tr("Font:")); - fontCombo = new QFontComboBox; - QLabel *sizeLabel = new QLabel(tr("Size:")); - sizeCombo = new QComboBox; - QLabel *styleLabel = new QLabel(tr("Style:")); - styleCombo = new QComboBox; - QLabel *fontMergingLabel = new QLabel(tr("Automatic Font Merging:")); - fontMerging = new QCheckBox; - fontMerging->setChecked(true); - - scrollArea = new QScrollArea; - characterWidget = new CharacterWidget; - scrollArea->setWidget(characterWidget); -//! [0] - -//! [1] - findStyles(fontCombo->currentFont()); -//! [1] - findSizes(fontCombo->currentFont()); - -//! [2] - lineEdit = new QLineEdit; - lineEdit->setClearButtonEnabled(true); -#ifndef QT_NO_CLIPBOARD - QPushButton *clipboardButton = new QPushButton(tr("&To clipboard")); -//! [2] - -#endif - -//! [4] - connect(fontCombo, &QFontComboBox::currentFontChanged, - this, &MainWindow::findStyles); - connect(fontCombo, &QFontComboBox::currentFontChanged, - this, &MainWindow::findSizes); - connect(fontCombo, &QFontComboBox::currentFontChanged, - characterWidget, &CharacterWidget::updateFont); - connect(sizeCombo, &QComboBox::currentTextChanged, - characterWidget, &CharacterWidget::updateSize); - connect(styleCombo, &QComboBox::currentTextChanged, - characterWidget, &CharacterWidget::updateStyle); -//! [4] //! [5] - connect(characterWidget, &CharacterWidget::characterSelected, - this, &MainWindow::insertCharacter); - -#ifndef QT_NO_CLIPBOARD - connect(clipboardButton, &QAbstractButton::clicked, this, &MainWindow::updateClipboard); -#endif -//! [5] - connect(fontMerging, &QAbstractButton::toggled, characterWidget, &CharacterWidget::updateFontMerging); - -//! [6] - QHBoxLayout *controlsLayout = new QHBoxLayout; - controlsLayout->addWidget(filterLabel); - controlsLayout->addWidget(filterCombo, 1); - controlsLayout->addWidget(fontLabel); - controlsLayout->addWidget(fontCombo, 1); - controlsLayout->addWidget(sizeLabel); - controlsLayout->addWidget(sizeCombo, 1); - controlsLayout->addWidget(styleLabel); - controlsLayout->addWidget(styleCombo, 1); - controlsLayout->addWidget(fontMergingLabel); - controlsLayout->addWidget(fontMerging, 1); - controlsLayout->addStretch(1); - - QHBoxLayout *lineLayout = new QHBoxLayout; - lineLayout->addWidget(lineEdit, 1); - lineLayout->addSpacing(12); -#ifndef QT_NO_CLIPBOARD - lineLayout->addWidget(clipboardButton); -#endif - - QVBoxLayout *centralLayout = new QVBoxLayout; - centralLayout->addLayout(controlsLayout); - centralLayout->addWidget(scrollArea, 1); - centralLayout->addSpacing(4); - centralLayout->addLayout(lineLayout); - centralWidget->setLayout(centralLayout); - - setCentralWidget(centralWidget); - setWindowTitle(tr("Character Map")); -} -//! [6] - -//! [7] -void MainWindow::findStyles(const QFont &font) -{ - QString currentItem = styleCombo->currentText(); - styleCombo->clear(); -//! [7] - -//! [8] - const QStringList styles = QFontDatabase::styles(font.family()); - for (const QString &style : styles) - styleCombo->addItem(style); - - int styleIndex = styleCombo->findText(currentItem); - - if (styleIndex == -1) - styleCombo->setCurrentIndex(0); - else - styleCombo->setCurrentIndex(styleIndex); -} -//! [8] - -void MainWindow::filterChanged(int f) -{ - const QFontComboBox::FontFilter filter = - qvariant_cast<QFontComboBox::FontFilter>(filterCombo->itemData(f)); - fontCombo->setFontFilters(filter); - statusBar()->showMessage(tr("%n font(s) found", nullptr, fontCombo->count())); -} - -void MainWindow::findSizes(const QFont &font) -{ - QString currentSize = sizeCombo->currentText(); - - { - const QSignalBlocker blocker(sizeCombo); - // sizeCombo signals are now blocked until end of scope - sizeCombo->clear(); - - if (QFontDatabase::isSmoothlyScalable(font.family(), QFontDatabase::styleString(font))) { - const QList<int> sizes = QFontDatabase::standardSizes(); - for (const int size : sizes) { - sizeCombo->addItem(QVariant(size).toString()); - sizeCombo->setEditable(true); - } - - } else { - const QList<int> sizes = QFontDatabase::smoothSizes(font.family(), QFontDatabase::styleString(font)); - for (const int size : sizes ) { - sizeCombo->addItem(QVariant(size).toString()); - sizeCombo->setEditable(false); - } - } - } - - int sizeIndex = sizeCombo->findText(currentSize); - - if(sizeIndex == -1) - sizeCombo->setCurrentIndex(qMax(0, sizeCombo->count() / 3)); - else - sizeCombo->setCurrentIndex(sizeIndex); -} - -//! [9] -void MainWindow::insertCharacter(const QString &character) -{ - lineEdit->insert(character); -} -//! [9] - -//! [10] -#ifndef QT_NO_CLIPBOARD -void MainWindow::updateClipboard() -{ -//! [11] - QGuiApplication::clipboard()->setText(lineEdit->text(), QClipboard::Clipboard); -//! [11] - QGuiApplication::clipboard()->setText(lineEdit->text(), QClipboard::Selection); -} -#endif - -class FontInfoDialog : public QDialog -{ -public: - explicit FontInfoDialog(QWidget *parent = nullptr); - -private: - QString text() const; -}; - -FontInfoDialog::FontInfoDialog(QWidget *parent) : QDialog(parent) -{ - setWindowFlags(windowFlags() & ~Qt::WindowContextHelpButtonHint); - QVBoxLayout *mainLayout = new QVBoxLayout(this); - QPlainTextEdit *textEdit = new QPlainTextEdit(text(), this); - textEdit->setReadOnly(true); - textEdit->setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont)); - mainLayout->addWidget(textEdit); - QDialogButtonBox *buttonBox = new QDialogButtonBox(QDialogButtonBox::Close, this); - connect(buttonBox, &QDialogButtonBox::rejected, this, &QDialog::reject); - mainLayout->addWidget(buttonBox); -} - -QString FontInfoDialog::text() const -{ - QString text; - QTextStream str(&text); - const QFont defaultFont = QFontDatabase::systemFont(QFontDatabase::GeneralFont); - const QFont fixedFont = QFontDatabase::systemFont(QFontDatabase::FixedFont); - const QFont titleFont = QFontDatabase::systemFont(QFontDatabase::TitleFont); - const QFont smallestReadableFont = QFontDatabase::systemFont(QFontDatabase::SmallestReadableFont); - - str << "Qt " << QT_VERSION_STR << " on " << QGuiApplication::platformName() - << ", " << logicalDpiX() << "DPI"; - if (!qFuzzyCompare(devicePixelRatio(), qreal(1))) - str << ", device pixel ratio: " << devicePixelRatio(); - str << "\n\nDefault font : " << defaultFont.family() << ", " << defaultFont.pointSizeF() << "pt\n" - << "Fixed font : " << fixedFont.family() << ", " << fixedFont.pointSizeF() << "pt\n" - << "Title font : " << titleFont.family() << ", " << titleFont.pointSizeF() << "pt\n" - << "Smallest font: " << smallestReadableFont.family() << ", " << smallestReadableFont.pointSizeF() << "pt\n"; - - return text; -} - -void MainWindow::showInfo() -{ - const QRect screenGeometry = screen()->geometry(); - FontInfoDialog *dialog = new FontInfoDialog(this); - dialog->setWindowTitle(tr("Fonts")); - dialog->setAttribute(Qt::WA_DeleteOnClose); - dialog->resize(screenGeometry.width() / 4, screenGeometry.height() / 4); - dialog->show(); -} - -//! [10] |