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authoraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
committeraxis <qt-info@nokia.com>2009-04-24 11:34:15 (GMT)
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Long live Qt for S60!
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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications 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 "demotextitem.h"
+#include "colors.h"
+
+DemoTextItem::DemoTextItem(const QString &text, const QFont &font, const QColor &textColor,
+ float textWidth, QGraphicsScene *scene, QGraphicsItem *parent, TYPE type, const QColor &bgColor)
+ : DemoItem(scene, parent)
+{
+ this->type = type;
+ this->text = text;
+ this->font = font;
+ this->textColor = textColor;
+ this->bgColor = bgColor;
+ this->textWidth = textWidth;
+ this->noSubPixeling = true;
+}
+
+void DemoTextItem::setText(const QString &text)
+{
+ this->text = text;
+ this->update();
+}
+
+QImage *DemoTextItem::createImage(const QMatrix &matrix) const
+{
+ if (this->type == DYNAMIC_TEXT)
+ return 0;
+
+ float sx = qMin(matrix.m11(), matrix.m22());
+ float sy = matrix.m22() < sx ? sx : matrix.m22();
+
+ QGraphicsTextItem textItem(0, 0);
+ textItem.setHtml(this->text);
+ textItem.setTextWidth(this->textWidth);
+ textItem.setFont(this->font);
+ textItem.setDefaultTextColor(this->textColor);
+ textItem.document()->setDocumentMargin(2);
+
+ float w = textItem.boundingRect().width();
+ float h = textItem.boundingRect().height();
+ QImage *image = new QImage(int(w * sx), int(h * sy), QImage::Format_ARGB32_Premultiplied);
+ image->fill(QColor(0, 0, 0, 0).rgba());
+ QPainter painter(image);
+ painter.scale(sx, sy);
+ QStyleOptionGraphicsItem style;
+ textItem.paint(&painter, &style, 0);
+ return image;
+}
+
+
+void DemoTextItem::animationStarted(int)
+{
+ this->noSubPixeling = false;
+}
+
+
+void DemoTextItem::animationStopped(int)
+{
+ this->noSubPixeling = true;
+}
+
+QRectF DemoTextItem::boundingRect() const
+
+{
+ if (this->type == STATIC_TEXT)
+ return DemoItem::boundingRect();
+ return QRectF(0, 0, 50, 20); // Sorry for using magic number
+}
+
+
+void DemoTextItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
+{
+ Q_UNUSED(option);
+ Q_UNUSED(widget);
+
+ if (this->type == STATIC_TEXT) {
+ DemoItem::paint(painter, option, widget);
+ return;
+ }
+
+ painter->setPen(this->textColor);
+ painter->drawText(0, 0, this->text);
+}