Long live Qt!

1 files changed, 123 insertions, 0 deletions

diff --git a/demos/qtdemo/demotextitem.cpp b/demos/qtdemo/demotextitem.cpp
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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);
+}