Long live Qt 4.5!

6 files changed, 608 insertions, 0 deletions

diff --git a/examples/widgets/charactermap/charactermap.pro b/examples/widgets/charactermap/charactermap.pro
new file mode 100644
index 0000000..fe0733d
--- /dev/null
+++ b/examples/widgets/charactermap/charactermap.pro
@@ -0,0 +1,11 @@
+HEADERS     = characterwidget.h \
+              mainwindow.h
+SOURCES     = characterwidget.cpp \
+              mainwindow.cpp \
+              main.cpp
+
+# install
+target.path = $$[QT_INSTALL_EXAMPLES]/widgets/charactermap
+sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS charactermap.pro
+sources.path = $$[QT_INSTALL_EXAMPLES]/widgets/charactermap
+INSTALLS += target sources
diff --git a/examples/widgets/charactermap/characterwidget.cpp b/examples/widgets/charactermap/characterwidget.cpp
new file mode 100644
index 0000000..3409169
--- /dev/null
+++ b/examples/widgets/charactermap/characterwidget.cpp
@@ -0,0 +1,178 @@
+/****************************************************************************
+**
+** 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 "characterwidget.h"
+
+//! [0]
+CharacterWidget::CharacterWidget(QWidget *parent)
+    : QWidget(parent)
+{
+    squareSize = 24;
+    columns = 16;
+    lastKey = -1;
+    setMouseTracking(true);
+}
+//! [0]
+
+//! [1]
+void CharacterWidget::updateFont(const QFont &font)
+{
+    displayFont.setFamily(font.family());
+    squareSize = qMax(24, QFontMetrics(displayFont).xHeight() * 3);
+    adjustSize();
+    update();
+}
+//! [1]
+
+//! [2]
+void CharacterWidget::updateSize(const QString &fontSize)
+{
+    displayFont.setPointSize(fontSize.toInt());
+    squareSize = qMax(24, QFontMetrics(displayFont).xHeight() * 3);
+    adjustSize();
+    update();
+}
+//! [2]
+
+void CharacterWidget::updateStyle(const QString &fontStyle)
+{
+    QFontDatabase fontDatabase;
+    const QFont::StyleStrategy oldStrategy = displayFont.styleStrategy();
+    displayFont = fontDatabase.font(displayFont.family(), fontStyle, displayFont.pointSize());
+    displayFont.setStyleStrategy(oldStrategy);
+    squareSize = qMax(24, QFontMetrics(displayFont).xHeight() * 3);
+    adjustSize();
+    update();
+}
+
+void CharacterWidget::updateFontMerging(bool enable)
+{
+    if (enable)
+        displayFont.setStyleStrategy(QFont::PreferDefault);
+    else
+        displayFont.setStyleStrategy(QFont::NoFontMerging);
+    adjustSize();
+    update();
+}
+
+//! [3]
+QSize CharacterWidget::sizeHint() const
+{
+    return QSize(columns*squareSize, (65536/columns)*squareSize);
+}
+//! [3]
+
+//! [4]
+void CharacterWidget::mouseMoveEvent(QMouseEvent *event)
+{
+    QPoint widgetPosition = mapFromGlobal(event->globalPos());
+    uint key = (widgetPosition.y()/squareSize)*columns + widgetPosition.x()/squareSize;
+
+    QString text = QString::fromLatin1("<p>Character: <span style=\"font-size: 24pt; font-family: %1\">").arg(displayFont.family())
+                  + QChar(key)
+                  + QString::fromLatin1("</span><p>Value: 0x")
+                  + QString::number(key, 16);
+    QToolTip::showText(event->globalPos(), text, this);
+}
+//! [4]
+
+//! [5]
+void CharacterWidget::mousePressEvent(QMouseEvent *event)
+{
+    if (event->button() == Qt::LeftButton) {
+        lastKey = (event->y()/squareSize)*columns + event->x()/squareSize;
+        if (QChar(lastKey).category() != QChar::NoCategory)
+            emit characterSelected(QString(QChar(lastKey)));
+        update();
+    }
+    else
+        QWidget::mousePressEvent(event);
+}
+//! [5]
+
+//! [6]
+void CharacterWidget::paintEvent(QPaintEvent *event)
+{
+    QPainter painter(this);
+    painter.fillRect(event->rect(), QBrush(Qt::white));
+    painter.setFont(displayFont);
+//! [6]
+
+//! [7]
+    QRect redrawRect = event->rect();
+    int beginRow = redrawRect.top()/squareSize;
+    int endRow = redrawRect.bottom()/squareSize;
+    int beginColumn = redrawRect.left()/squareSize;
+    int endColumn = redrawRect.right()/squareSize;
+//! [7]
+
+//! [8]
+    painter.setPen(QPen(Qt::gray));
+    for (int row = beginRow; row <= endRow; ++row) {
+        for (int column = beginColumn; column <= endColumn; ++column) {
+            painter.drawRect(column*squareSize, row*squareSize, squareSize, squareSize);
+        }
+//! [8] //! [9]
+    }
+//! [9]
+
+//! [10]
+    QFontMetrics fontMetrics(displayFont);
+    painter.setPen(QPen(Qt::black));
+    for (int row = beginRow; row <= endRow; ++row) {
+
+        for (int column = beginColumn; column <= endColumn; ++column) {
+
+            int key = row*columns + column;
+            painter.setClipRect(column*squareSize, row*squareSize, squareSize, squareSize);
+
+            if (key == lastKey)
+                painter.fillRect(column*squareSize + 1, row*squareSize + 1, squareSize, squareSize, QBrush(Qt::red));
+
+            painter.drawText(column*squareSize + (squareSize / 2) - fontMetrics.width(QChar(key))/2,
+                             row*squareSize + 4 + fontMetrics.ascent(),
+                             QString(QChar(key)));
+        }
+    }
+}
+//! [10]
diff --git a/examples/widgets/charactermap/characterwidget.h b/examples/widgets/charactermap/characterwidget.h
new file mode 100644
index 0000000..aa95963
--- /dev/null
+++ b/examples/widgets/charactermap/characterwidget.h
@@ -0,0 +1,87 @@
+/****************************************************************************
+**
+** 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 CHARACTERWIDGET_H
+#define CHARACTERWIDGET_H
+
+#include <QFont>
+#include <QPoint>
+#include <QSize>
+#include <QString>
+#include <QWidget>
+
+QT_BEGIN_NAMESPACE
+class QMouseEvent;
+class QPaintEvent;
+QT_END_NAMESPACE
+
+//! [0]
+class CharacterWidget : public QWidget
+{
+    Q_OBJECT
+
+public:
+    CharacterWidget(QWidget *parent = 0);
+    QSize sizeHint() const;
+
+public slots:
+    void updateFont(const QFont &font);
+    void updateSize(const QString &fontSize);
+    void updateStyle(const QString &fontStyle);
+    void updateFontMerging(bool enable);
+
+signals:
+    void characterSelected(const QString &character);
+
+protected:
+    void mouseMoveEvent(QMouseEvent *event);
+    void mousePressEvent(QMouseEvent *event);
+    void paintEvent(QPaintEvent *event);
+
+private:
+    QFont displayFont;
+    int columns;
+    int lastKey;
+    int squareSize;
+};
+//! [0]
+
+#endif
diff --git a/examples/widgets/charactermap/main.cpp b/examples/widgets/charactermap/main.cpp
new file mode 100644
index 0000000..1d51376
--- /dev/null
+++ b/examples/widgets/charactermap/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/widgets/charactermap/mainwindow.cpp b/examples/widgets/charactermap/mainwindow.cpp
new file mode 100644
index 0000000..a1e206b
--- /dev/null
+++ b/examples/widgets/charactermap/mainwindow.cpp
@@ -0,0 +1,196 @@
+/****************************************************************************
+**
+** 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 "characterwidget.h"
+#include "mainwindow.h"
+
+//! [0]
+MainWindow::MainWindow()
+{
+    QWidget *centralWidget = new QWidget;
+
+    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;
+    QPushButton *clipboardButton = new QPushButton(tr("&To clipboard"));
+//! [2]
+
+//! [3]
+    clipboard = QApplication::clipboard();
+//! [3]
+
+//! [4]
+    connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),
+            this, SLOT(findStyles(const QFont &)));
+    connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),
+            this, SLOT(findSizes(const QFont &)));
+    connect(fontCombo, SIGNAL(currentFontChanged(const QFont &)),
+            characterWidget, SLOT(updateFont(const QFont &)));
+    connect(sizeCombo, SIGNAL(currentIndexChanged(const QString &)),
+            characterWidget, SLOT(updateSize(const QString &)));
+    connect(styleCombo, SIGNAL(currentIndexChanged(const QString &)),
+            characterWidget, SLOT(updateStyle(const QString &)));
+//! [4] //! [5]
+    connect(characterWidget, SIGNAL(characterSelected(const QString &)),
+            this, SLOT(insertCharacter(const QString &)));
+    connect(clipboardButton, SIGNAL(clicked()), this, SLOT(updateClipboard()));
+//! [5]
+    connect(fontMerging, SIGNAL(toggled(bool)), characterWidget, SLOT(updateFontMerging(bool)));
+
+//! [6]
+    QHBoxLayout *controlsLayout = new QHBoxLayout;
+    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);
+    lineLayout->addWidget(clipboardButton);
+
+    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)
+{
+    QFontDatabase fontDatabase;
+    QString currentItem = styleCombo->currentText();
+    styleCombo->clear();
+//! [7]
+
+//! [8]
+    QString style;
+    foreach (style, fontDatabase.styles(font.family()))
+        styleCombo->addItem(style);
+
+    int styleIndex = styleCombo->findText(currentItem);
+
+    if (styleIndex == -1)
+        styleCombo->setCurrentIndex(0);
+    else
+        styleCombo->setCurrentIndex(styleIndex);
+}
+//! [8]
+
+void MainWindow::findSizes(const QFont &font)
+{
+    QFontDatabase fontDatabase;
+    QString currentSize = sizeCombo->currentText();
+    sizeCombo->blockSignals(true);
+    sizeCombo->clear();
+
+    int size;
+    if(fontDatabase.isSmoothlyScalable(font.family(), fontDatabase.styleString(font))) {
+        foreach(size, QFontDatabase::standardSizes()) {
+            sizeCombo->addItem(QVariant(size).toString());
+            sizeCombo->setEditable(true);
+        }
+
+    } else {
+        foreach(size, fontDatabase.smoothSizes(font.family(), fontDatabase.styleString(font))) {
+            sizeCombo->addItem(QVariant(size).toString());
+            sizeCombo->setEditable(false);
+        }
+    }
+
+    sizeCombo->blockSignals(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]
+void MainWindow::updateClipboard()
+{
+//! [11]
+    clipboard->setText(lineEdit->text(), QClipboard::Clipboard);
+//! [11]
+    clipboard->setText(lineEdit->text(), QClipboard::Selection);
+}
+//! [10]
diff --git a/examples/widgets/charactermap/mainwindow.h b/examples/widgets/charactermap/mainwindow.h
new file mode 100644
index 0000000..3f3208c
--- /dev/null
+++ b/examples/widgets/charactermap/mainwindow.h
@@ -0,0 +1,84 @@
+/****************************************************************************
+**
+** 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 <QMainWindow>
+#include <QString>
+
+QT_BEGIN_NAMESPACE
+class QClipboard;
+class QComboBox;
+class QFontComboBox;
+class QLineEdit;
+class QScrollArea;
+class QCheckBox;
+QT_END_NAMESPACE
+class CharacterWidget;
+
+//! [0]
+class MainWindow : public QMainWindow
+{
+    Q_OBJECT
+
+public:
+    MainWindow();
+
+public slots:
+    void findStyles(const QFont &font);
+    void findSizes(const QFont &font);
+    void insertCharacter(const QString &character);
+    void updateClipboard();
+
+private:
+    CharacterWidget *characterWidget;
+    QClipboard *clipboard;
+    QComboBox *styleCombo;
+    QComboBox *sizeCombo;
+    QFontComboBox *fontCombo;
+    QLineEdit *lineEdit;
+    QScrollArea *scrollArea;
+    QCheckBox *fontMerging;
+};
+//! [0]
+
+#endif