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-rw-r--r--examples/widgets/charactermap/characterwidget.cpp177
1 files changed, 0 insertions, 177 deletions
diff --git a/examples/widgets/charactermap/characterwidget.cpp b/examples/widgets/charactermap/characterwidget.cpp
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--- a/examples/widgets/charactermap/characterwidget.cpp
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@@ -1,177 +0,0 @@
-/****************************************************************************
-**
-** 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]