Long live Qt 4.5!

5 files changed, 658 insertions, 0 deletions

diff --git a/examples/painting/fontsampler/fontsampler.pro b/examples/painting/fontsampler/fontsampler.pro
new file mode 100644
index 0000000..8b63752
--- /dev/null
+++ b/examples/painting/fontsampler/fontsampler.pro
@@ -0,0 +1,10 @@
+FORMS     = mainwindowbase.ui
+HEADERS   = mainwindow.h
+SOURCES   = main.cpp \
+            mainwindow.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS fontsampler.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/painting/fontsampler
+INSTALLS += target sources
diff --git a/examples/painting/fontsampler/main.cpp b/examples/painting/fontsampler/main.cpp
new file mode 100644
index 0000000..1d51376
--- /dev/null
+++ b/examples/painting/fontsampler/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QApplication>
+
+#include "mainwindow.h"
+
+int main(int argc, char *argv[])
+{
+    QApplication app(argc, argv);
+    MainWindow window;
+    window.show();
+    return app.exec();
+}
diff --git a/examples/painting/fontsampler/mainwindow.cpp b/examples/painting/fontsampler/mainwindow.cpp
new file mode 100644
index 0000000..424f175
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindow.cpp
@@ -0,0 +1,373 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtGui>
+
+#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, SIGNAL(triggered()), qApp, SLOT(quit()));
+    connect(fontTree, SIGNAL(currentItemChanged(QTreeWidgetItem *, QTreeWidgetItem *)),
+            this, SLOT(showFont(QTreeWidgetItem *)));
+    connect(fontTree, SIGNAL(itemChanged(QTreeWidgetItem *, int)),
+            this, SLOT(updateStyles(QTreeWidgetItem *, int)));
+
+    fontTree->setItemSelected(fontTree->topLevelItem(0), true);
+    showFont(fontTree->topLevelItem(0));
+}
+
+void MainWindow::setupFontTree()
+{
+    QFontDatabase database;
+    fontTree->setColumnCount(1);
+    fontTree->setHeaderLabels(QStringList() << tr("Font"));
+
+    foreach (QString family, database.families()) {
+        const QStringList styles = database.styles(family);
+        if (styles.isEmpty())
+            continue;
+
+        QTreeWidgetItem *familyItem = new QTreeWidgetItem(fontTree);
+        familyItem->setText(0, family);
+        familyItem->setCheckState(0, Qt::Unchecked);
+
+        foreach (QString style, styles) {
+            QTreeWidgetItem *styleItem = new QTreeWidgetItem(familyItem);
+            styleItem->setText(0, style);
+            styleItem->setCheckState(0, Qt::Unchecked);
+            styleItem->setData(0, Qt::UserRole,
+                QVariant(database.weight(family, style)));
+            styleItem->setData(0, Qt::UserRole + 1,
+                QVariant(database.italic(family, style)));
+        }
+    }
+}
+
+void MainWindow::on_clearAction_triggered()
+{
+    QTreeWidgetItem *currentItem = fontTree->currentItem();
+    foreach (QTreeWidgetItem *item, fontTree->selectedItems())
+        fontTree->setItemSelected(item, false);
+    fontTree->setItemSelected(currentItem, true);
+}
+
+void MainWindow::on_markAction_triggered()
+{
+    markUnmarkFonts(Qt::Checked);
+}
+
+void MainWindow::on_unmarkAction_triggered()
+{
+    markUnmarkFonts(Qt::Unchecked);
+}
+
+void MainWindow::markUnmarkFonts(Qt::CheckState state)
+{
+    QList<QTreeWidgetItem *> items = fontTree->selectedItems();
+    foreach (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();
+    textEdit->document()->setDefaultFont(QFont(family, 32, weight, italic));
+
+    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;
+
+        if (state == Qt::Checked &&
+            parent->checkState(0) == Qt::Unchecked) {
+            // Mark parent items when child items are checked.
+            parent->setCheckState(0, Qt::Checked);
+
+        } else if (state == Qt::Unchecked &&
+                   parent->checkState(0) == Qt::Checked) {
+
+            bool marked = false;
+            for (int row = 0; row < parent->childCount(); ++row) {
+                if (parent->child(row)->checkState(0) == Qt::Checked) {
+                    marked = true;
+                    break;
+                }
+            }
+            // Unmark parent items when all child items are unchecked.
+            if (!marked)
+                parent->setCheckState(0, Qt::Unchecked);
+        }
+    } else {
+        int row;
+        int number = 0;
+        for (row = 0; row < item->childCount(); ++row) {
+            if (item->child(row)->checkState(0) == Qt::Checked)
+                ++number;
+        }
+
+        // Mark/unmark all child items when marking/unmarking top-level
+        // items.
+        if (state == Qt::Checked && number == 0) {
+            for (row = 0; row < item->childCount(); ++row) {
+                if (item->child(row)->checkState(0) == Qt::Unchecked)
+                    item->child(row)->setCheckState(0, Qt::Checked);
+            }
+        } else if (state == Qt::Unchecked && number > 0) {
+            for (row = 0; row < item->childCount(); ++row) {
+                if (item->child(row)->checkState(0) == Qt::Checked)
+                    item->child(row)->setCheckState(0, Qt::Unchecked);
+            }
+        }
+    }
+
+    printAction->setEnabled(markedCount > 0);
+    printPreviewAction->setEnabled(markedCount > 0);
+}
+
+void MainWindow::on_printAction_triggered()
+{
+    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);
+}
+
+void MainWindow::printDocument(QPrinter *printer)
+{
+    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();
+}
+
+void MainWindow::on_printPreviewAction_triggered()
+{
+    pageMap = currentPageMap();
+
+    if (pageMap.count() == 0)
+        return;
+
+    QPrinter printer(QPrinter::HighResolution);
+    QPrintPreviewDialog preview(&printer, this);
+    connect(&preview, SIGNAL(paintRequested(QPrinter *)),
+            this, SLOT(printDocument(QPrinter *)));
+    preview.exec();
+}
+
+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::printPage(int index, QPainter *painter, QPrinter *printer)
+{
+    QString family = pageMap.keys()[index];
+    StyleItems items = pageMap[family];
+
+    // Find the dimensions of the text on each page.
+    qreal width = 0.0;
+    qreal height = 0.0;
+    foreach (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.
+        foreach (int size, sampleSizes) {
+            QFont font(family, size, weight, italic);
+            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().width() / width;
+    qreal yScale = printer->pageRect().height() / height;
+    qreal scale = qMin(xScale, yScale);
+
+    qreal remainingHeight = printer->pageRect().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().width()/2.0, printer->pageRect().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;
+
+    foreach (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.
+        foreach (int size, sampleSizes) {
+            QFont font(family, size, weight, italic);
+            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();
+}
diff --git a/examples/painting/fontsampler/mainwindow.h b/examples/painting/fontsampler/mainwindow.h
new file mode 100644
index 0000000..25d7730
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindow.h
@@ -0,0 +1,83 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain
+** additional rights. These rights are described in the Nokia Qt LGPL
+** Exception version 1.0, included in the file LGPL_EXCEPTION.txt in this
+** package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3.0 as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU General Public License version 3.0 requirements will be
+** met: http://www.gnu.org/copyleft/gpl.html.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MAINWINDOW_H
+#define MAINWINDOW_H
+
+#include "ui_mainwindowbase.h"
+
+QT_BEGIN_NAMESPACE
+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 = 0);
+
+public slots:
+    void on_clearAction_triggered();
+    void on_markAction_triggered();
+    void on_printAction_triggered();
+    void on_printPreviewAction_triggered();
+    void on_unmarkAction_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
diff --git a/examples/painting/fontsampler/mainwindowbase.ui b/examples/painting/fontsampler/mainwindowbase.ui
new file mode 100644
index 0000000..6545b34
--- /dev/null
+++ b/examples/painting/fontsampler/mainwindowbase.ui
@@ -0,0 +1,140 @@
+<ui version="4.0" >
+ <author></author>
+ <comment></comment>
+ <exportmacro></exportmacro>
+ <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="margin" >
+     <number>9</number>
+    </property>
+    <property name="spacing" >
+     <number>6</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>24</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|QDockWidget::NoDockWidgetFeatures</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="margin" >
+      <number>9</number>
+     </property>
+     <property name="spacing" >
+      <number>6</number>
+     </property>
+     <item>
+      <widget class="QTreeWidget" name="fontTree" >
+       <property name="selectionMode" >
+        <enum>QAbstractItemView::ExtendedSelection</enum>
+       </property>
+      </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>
+ <pixmapfunction></pixmapfunction>
+ <resources/>
+ <connections/>
+</ui>