6.5.3 clean

tests/manual/examples/widgets/painting/fontsampler/CMakeLists.txt

@@ -0,0 +1,45 @@
+# Copyright (C) 2022 The Qt Company Ltd.
+# SPDX-License-Identifier: BSD-3-Clause
+
+cmake_minimum_required(VERSION 3.16)
+project(fontsampler LANGUAGES CXX)
+
+if(NOT DEFINED INSTALL_EXAMPLESDIR)
+    set(INSTALL_EXAMPLESDIR "examples")
+endif()
+
+set(INSTALL_EXAMPLEDIR "${INSTALL_EXAMPLESDIR}/widgets/painting/fontsampler")
+
+find_package(Qt6
+    REQUIRED COMPONENTS Core Gui Widgets
+    OPTIONAL_COMPONENTS PrintSupport
+)
+
+qt_standard_project_setup()
+
+qt_add_executable(fontsampler
+    main.cpp
+    mainwindow.cpp mainwindow.h
+    mainwindowbase.ui
+)
+
+set_target_properties(fontsampler PROPERTIES
+    WIN32_EXECUTABLE TRUE
+    MACOSX_BUNDLE TRUE
+)
+
+target_link_libraries(fontsampler PRIVATE
+    Qt6::Core
+    Qt6::Gui
+    Qt6::Widgets
+)
+
+if(TARGET Qt6::PrintSupport)
+    target_link_libraries(fontsampler PRIVATE Qt6::PrintSupport)
+endif()
+
+install(TARGETS fontsampler
+    RUNTIME DESTINATION "${INSTALL_EXAMPLEDIR}"
+    BUNDLE DESTINATION "${INSTALL_EXAMPLEDIR}"
+    LIBRARY DESTINATION "${INSTALL_EXAMPLEDIR}"
+)

tests/manual/examples/widgets/painting/fontsampler/fontsampler.pro

@@ -0,0 +1,12 @@
+QT += widgets
+requires(qtConfig(combobox))
+qtHaveModule(printsupport): QT += printsupport
+
+FORMS     = mainwindowbase.ui
+HEADERS   = mainwindow.h
+SOURCES   = main.cpp \
+            mainwindow.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/painting/fontsampler
+INSTALLS += target

tests/manual/examples/widgets/painting/fontsampler/main.cpp

@@ -0,0 +1,14 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    MainWindow window;
+    window.show();
+    return app.exec();
+}

tests/manual/examples/widgets/painting/fontsampler/mainwindow.cpp

@@ -0,0 +1,314 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#include <QtWidgets>
+#if defined(QT_PRINTSUPPORT_LIB)
+#include <QtPrintSupport/qtprintsupportglobal.h>
+#if QT_CONFIG(printdialog)
+#include <QPrinter>
+#include <QPrintDialog>
+#if QT_CONFIG(printpreviewdialog)
+#include <QPrintPreviewDialog>
+#endif
+#endif
+#endif
+
+#include "mainwindow.h"
+
+MainWindow::MainWindow(QWidget *parent)
+   : QMainWindow(parent)
+{
+    setupUi(this);
+
+    sampleSizes << 32 << 24 << 16 << 14 << 12 << 8 << 4 << 2 << 1;
+    markedCount = 0;
+    setupFontTree();
+
+    connect(quitAction, &QAction::triggered,
+            qApp, &QApplication::quit);
+    connect(fontTree, &QTreeWidget::currentItemChanged,
+            this, &MainWindow::showFont);
+    connect(fontTree, &QTreeWidget::itemChanged,
+            this, &MainWindow::updateStyles);
+
+    fontTree->topLevelItem(0)->setSelected(true);
+    showFont(fontTree->topLevelItem(0));
+}
+
+void MainWindow::setupFontTree()
+{
+    fontTree->setColumnCount(1);
+    fontTree->setHeaderLabels({ tr("Font") });
+
+    const QStringList fontFamilies = QFontDatabase::families();
+    for (const QString &family : fontFamilies) {
+        const QStringList styles = QFontDatabase::styles(family);
+        if (styles.isEmpty())
+            continue;
+
+        QTreeWidgetItem *familyItem = new QTreeWidgetItem(fontTree);
+        familyItem->setText(0, family);
+        familyItem->setCheckState(0, Qt::Unchecked);
+        familyItem->setFlags(familyItem->flags() | Qt::ItemIsAutoTristate);
+
+        for (const QString &style : styles) {
+            QTreeWidgetItem *styleItem = new QTreeWidgetItem(familyItem);
+            styleItem->setText(0, style);
+            styleItem->setCheckState(0, Qt::Unchecked);
+            styleItem->setData(0, Qt::UserRole, QVariant(QFontDatabase::weight(family, style)));
+            styleItem->setData(0, Qt::UserRole + 1, QVariant(QFontDatabase::italic(family, style)));
+        }
+    }
+}
+
+void MainWindow::on_clearAction_triggered()
+{
+    const QList<QTreeWidgetItem *> items = fontTree->selectedItems();
+    for (QTreeWidgetItem *item : items)
+        item->setSelected(false);
+    fontTree->currentItem()->setSelected(true);
+}
+
+void MainWindow::on_markAction_triggered()
+{
+    markUnmarkFonts(Qt::Checked);
+}
+
+void MainWindow::on_unmarkAction_triggered()
+{
+    markUnmarkFonts(Qt::Unchecked);
+}
+
+void MainWindow::markUnmarkFonts(Qt::CheckState state)
+{
+    const QList<QTreeWidgetItem *> items = fontTree->selectedItems();
+    for (QTreeWidgetItem *item : items) {
+        if (item->checkState(0) != state)
+            item->setCheckState(0, state);
+    }
+}
+
+void MainWindow::showFont(QTreeWidgetItem *item)
+{
+    if (!item)
+        return;
+
+    QString family;
+    QString style;
+    int weight;
+    bool italic;
+
+    if (item->parent()) {
+        family = item->parent()->text(0);
+        style = item->text(0);
+        weight = item->data(0, Qt::UserRole).toInt();
+        italic = item->data(0, Qt::UserRole + 1).toBool();
+    } else {
+        family = item->text(0);
+        style = item->child(0)->text(0);
+        weight = item->child(0)->data(0, Qt::UserRole).toInt();
+        italic = item->child(0)->data(0, Qt::UserRole + 1).toBool();
+    }
+
+    QString oldText = textEdit->toPlainText().trimmed();
+    bool modified = textEdit->document()->isModified();
+    textEdit->clear();
+    QFont font(family, 32, weight, italic);
+    font.setStyleName(style);
+    textEdit->document()->setDefaultFont(font);
+
+    QTextCursor cursor = textEdit->textCursor();
+    QTextBlockFormat blockFormat;
+    blockFormat.setAlignment(Qt::AlignCenter);
+    cursor.insertBlock(blockFormat);
+
+    if (modified)
+        cursor.insertText(QString(oldText));
+    else
+        cursor.insertText(QString("%1 %2").arg(family).arg(style));
+
+    textEdit->document()->setModified(modified);
+}
+
+void MainWindow::updateStyles(QTreeWidgetItem *item, int column)
+{
+    if (!item || column != 0)
+        return;
+
+    Qt::CheckState state = item->checkState(0);
+    QTreeWidgetItem *parent = item->parent();
+
+    if (parent) {
+        // Only count style items.
+        if (state == Qt::Checked)
+            ++markedCount;
+        else
+            --markedCount;
+    }
+
+    printAction->setEnabled(markedCount > 0);
+    printPreviewAction->setEnabled(markedCount > 0);
+}
+
+QMap<QString, StyleItems> MainWindow::currentPageMap()
+{
+    QMap<QString, StyleItems> pageMap;
+
+    for (int row = 0; row < fontTree->topLevelItemCount(); ++row) {
+        QTreeWidgetItem *familyItem = fontTree->topLevelItem(row);
+        QString family;
+
+        if (familyItem->checkState(0) == Qt::Checked) {
+            family = familyItem->text(0);
+            pageMap[family] = StyleItems();
+        }
+
+        for (int childRow = 0; childRow < familyItem->childCount(); ++childRow) {
+            QTreeWidgetItem *styleItem = familyItem->child(childRow);
+            if (styleItem->checkState(0) == Qt::Checked)
+                pageMap[family].append(styleItem);
+        }
+    }
+
+    return pageMap;
+}
+
+void MainWindow::on_printAction_triggered()
+{
+#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printdialog)
+    pageMap = currentPageMap();
+
+    if (pageMap.count() == 0)
+        return;
+
+    QPrinter printer(QPrinter::HighResolution);
+    QPrintDialog dialog(&printer, this);
+    if (dialog.exec() != QDialog::Accepted)
+        return;
+
+    int from = printer.fromPage();
+    int to = printer.toPage();
+    if (from <= 0 && to <= 0)
+        printer.setFromTo(1, pageMap.keys().count());
+
+    printDocument(&printer);
+#endif
+}
+
+void MainWindow::printDocument(QPrinter *printer)
+{
+#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printdialog)
+    printer->setFromTo(1, pageMap.count());
+
+    QProgressDialog progress(tr("Preparing font samples..."), tr("&Cancel"),
+                             0, pageMap.count(), this);
+    progress.setWindowModality(Qt::ApplicationModal);
+    progress.setWindowTitle(tr("Font Sampler"));
+    progress.setMinimum(printer->fromPage() - 1);
+    progress.setMaximum(printer->toPage());
+
+    QPainter painter;
+    painter.begin(printer);
+    bool firstPage = true;
+
+    for (int page = printer->fromPage(); page <= printer->toPage(); ++page) {
+
+        if (!firstPage)
+            printer->newPage();
+
+        qApp->processEvents();
+        if (progress.wasCanceled())
+            break;
+
+        printPage(page - 1, &painter, printer);
+        progress.setValue(page);
+        firstPage = false;
+    }
+
+    painter.end();
+#endif
+}
+
+void MainWindow::on_printPreviewAction_triggered()
+{
+#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printpreviewdialog)
+    pageMap = currentPageMap();
+
+    if (pageMap.count() == 0)
+        return;
+
+    QPrinter printer(QPrinter::HighResolution);
+    QPrintPreviewDialog preview(&printer, this);
+    connect(&preview, &QPrintPreviewDialog::paintRequested,
+            this, &MainWindow::printDocument);
+    preview.exec();
+#endif
+}
+
+void MainWindow::printPage(int index, QPainter *painter, QPrinter *printer)
+{
+#if defined(QT_PRINTSUPPORT_LIB) && QT_CONFIG(printdialog)
+    const QString family = std::next(pageMap.begin(), index).key();
+    const StyleItems items = pageMap.value(family);
+
+    // Find the dimensions of the text on each page.
+    qreal width = 0.0;
+    qreal height = 0.0;
+    for (const QTreeWidgetItem *item : items) {
+        QString style = item->text(0);
+        int weight = item->data(0, Qt::UserRole).toInt();
+        bool italic = item->data(0, Qt::UserRole + 1).toBool();
+
+        // Calculate the maximum width and total height of the text.
+        for (int size : std::as_const(sampleSizes)) {
+            QFont font(family, size, weight, italic);
+            font.setStyleName(style);
+            font = QFont(font, painter->device());
+            QFontMetricsF fontMetrics(font);
+            QRectF rect = fontMetrics.boundingRect(
+            QString("%1 %2").arg(family).arg(style));
+            width = qMax(rect.width(), width);
+            height += rect.height();
+        }
+    }
+
+    qreal xScale = printer->pageRect(QPrinter::DevicePixel).width() / width;
+    qreal yScale = printer->pageRect(QPrinter::DevicePixel).height() / height;
+    qreal scale = qMin(xScale, yScale);
+
+    qreal remainingHeight = printer->pageRect(QPrinter::DevicePixel).height()/scale - height;
+    qreal spaceHeight = (remainingHeight / 4.0) / (items.count() + 1);
+    qreal interLineHeight = (remainingHeight / 4.0) / (sampleSizes.count() * items.count());
+
+    painter->save();
+    painter->translate(printer->pageRect(QPrinter::DevicePixel).width() / 2.0, printer->pageRect(QPrinter::DevicePixel).height() / 2.0);
+    painter->scale(scale, scale);
+    painter->setBrush(QBrush(Qt::black));
+
+    qreal x = -width / 2.0;
+    qreal y = -height / 2.0 - remainingHeight / 4.0 + spaceHeight;
+
+    for (const QTreeWidgetItem *item : items) {
+        QString style = item->text(0);
+        int weight = item->data(0, Qt::UserRole).toInt();
+        bool italic = item->data(0, Qt::UserRole + 1).toBool();
+
+        // Draw each line of text.
+        for (int size : std::as_const(sampleSizes)) {
+            QFont font(family, size, weight, italic);
+            font.setStyleName(style);
+            font = QFont(font, painter->device());
+            QFontMetricsF fontMetrics(font);
+            QRectF rect = fontMetrics.boundingRect(QString("%1 %2").arg(
+                          font.family()).arg(style));
+            y += rect.height();
+            painter->setFont(font);
+            painter->drawText(QPointF(x, y), QString("%1 %2").arg(family).arg(style));
+            y += interLineHeight;
+        }
+        y += spaceHeight;
+    }
+
+    painter->restore();
+#endif
+}

tests/manual/examples/widgets/painting/fontsampler/mainwindow.h

@@ -0,0 +1,54 @@
+// Copyright (C) 2016 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include "ui_mainwindowbase.h"
+
+#if defined(QT_PRINTSUPPORT_LIB)
+#include <QtPrintSupport/qtprintsupportglobal.h>
+#endif
+
+#include <QList>
+#include <QMap>
+#include <QString>
+
+QT_BEGIN_NAMESPACE
+class QPrinter;
+class QTextEdit;
+class QTreeWidget;
+class QTreeWidgetItem;
+QT_END_NAMESPACE
+
+typedef QList<QTreeWidgetItem *> StyleItems;
+
+class MainWindow : public QMainWindow, private Ui::MainWindowBase
+{
+    Q_OBJECT
+
+public:
+    MainWindow(QWidget *parent = nullptr);
+
+public slots:
+    void on_clearAction_triggered();
+    void on_markAction_triggered();
+    void on_unmarkAction_triggered();
+    void on_printAction_triggered();
+    void on_printPreviewAction_triggered();
+    void printDocument(QPrinter *printer);
+    void printPage(int index, QPainter *painter, QPrinter *printer);
+    void showFont(QTreeWidgetItem *item);
+    void updateStyles(QTreeWidgetItem *item, int column);
+
+private:
+    QMap<QString, StyleItems> currentPageMap();
+    void markUnmarkFonts(Qt::CheckState state);
+    void setupFontTree();
+
+    QList<int> sampleSizes;
+    QMap<QString, StyleItems> pageMap;
+    int markedCount;
+};
+
+#endif // MAINWINDOW_H

tests/manual/examples/widgets/painting/fontsampler/mainwindowbase.ui

@@ -0,0 +1,142 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>MainWindowBase</class>
+ <widget class="QMainWindow" name="MainWindowBase">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>800</width>
+    <height>345</height>
+   </rect>
+  </property>
+  <property name="windowTitle">
+   <string>Font Sampler</string>
+  </property>
+  <widget class="QWidget" name="centralwidget">
+   <layout class="QVBoxLayout">
+    <property name="spacing">
+     <number>6</number>
+    </property>
+    <property name="margin">
+     <number>9</number>
+    </property>
+    <item>
+     <widget class="QTextEdit" name="textEdit"/>
+    </item>
+   </layout>
+  </widget>
+  <widget class="QMenuBar" name="menubar">
+   <property name="geometry">
+    <rect>
+     <x>0</x>
+     <y>0</y>
+     <width>800</width>
+     <height>18</height>
+    </rect>
+   </property>
+   <widget class="QMenu" name="menu_Selection">
+    <property name="title">
+     <string>&amp;Selection</string>
+    </property>
+    <addaction name="markAction"/>
+    <addaction name="unmarkAction"/>
+    <addaction name="clearAction"/>
+   </widget>
+   <widget class="QMenu" name="menu_File">
+    <property name="title">
+     <string>&amp;File</string>
+    </property>
+    <addaction name="printPreviewAction"/>
+    <addaction name="printAction"/>
+    <addaction name="quitAction"/>
+   </widget>
+   <addaction name="menu_File"/>
+   <addaction name="menu_Selection"/>
+  </widget>
+  <widget class="QStatusBar" name="statusbar"/>
+  <widget class="QDockWidget" name="dockWidget">
+   <property name="features">
+    <set>QDockWidget::DockWidgetFloatable|QDockWidget::DockWidgetMovable</set>
+   </property>
+   <property name="windowTitle">
+    <string>Available Fonts</string>
+   </property>
+   <attribute name="dockWidgetArea">
+    <number>1</number>
+   </attribute>
+   <widget class="QWidget" name="dockWidgetContents">
+    <layout class="QVBoxLayout">
+     <property name="spacing">
+      <number>6</number>
+     </property>
+     <property name="margin">
+      <number>9</number>
+     </property>
+     <item>
+      <widget class="QTreeWidget" name="fontTree">
+       <property name="selectionMode">
+        <enum>QAbstractItemView::ExtendedSelection</enum>
+       </property>
+       <column>
+        <property name="text">
+         <string notr="true">1</string>
+        </property>
+       </column>
+      </widget>
+     </item>
+    </layout>
+   </widget>
+  </widget>
+  <action name="printAction">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>&amp;Print...</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+P</string>
+   </property>
+  </action>
+  <action name="quitAction">
+   <property name="text">
+    <string>E&amp;xit</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+Q</string>
+   </property>
+  </action>
+  <action name="markAction">
+   <property name="text">
+    <string>&amp;Mark</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+M</string>
+   </property>
+  </action>
+  <action name="unmarkAction">
+   <property name="text">
+    <string>&amp;Unmark</string>
+   </property>
+   <property name="shortcut">
+    <string>Ctrl+U</string>
+   </property>
+  </action>
+  <action name="clearAction">
+   <property name="text">
+    <string>&amp;Clear</string>
+   </property>
+  </action>
+  <action name="printPreviewAction">
+   <property name="enabled">
+    <bool>false</bool>
+   </property>
+   <property name="text">
+    <string>Print Preview...</string>
+   </property>
+  </action>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>