Moving .qdoc files under examples/widgets/doc

Updated those .qdoc files to refer to the new relative examples
emplacement. Images and snippets to be moved later.

Also grouped all widgets related examples under widgets.

Change-Id: Ib29696e2d8948524537f53e8dda88f9ee26a597f
Reviewed-by: J-P Nurmi <j-p.nurmi@nokia.com>

1 files changed, 177 insertions, 0 deletions

diff --git a/examples/widgets/widgets/charactermap/characterwidget.cpp b/examples/widgets/widgets/charactermap/characterwidget.cpp
new file mode 100644
index 0000000000..7ce5d61cf7
--- /dev/null
+++ b/examples/widgets/widgets/charactermap/characterwidget.cpp
@@ -0,0 +1,177 @@
+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+**   * Redistributions of source code must retain the above copyright
+**     notice, this list of conditions and the following disclaimer.
+**   * Redistributions in binary form must reproduce the above copyright
+**     notice, this list of conditions and the following disclaimer in
+**     the documentation and/or other materials provided with the
+**     distribution.
+**   * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+**     the names of its contributors may be used to endorse or promote
+**     products derived from this software without specific prior written
+**     permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtWidgets>
+
+#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::Other_NotAssigned)
+            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]