demos/qtdemo/letteritem.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/qtdemo/letteritem.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,85 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (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 Technology Preview License Agreement accompanying
+** this package.
+**
+** 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 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <cmath>
+#include "letteritem.h"
+#include "colors.h"
+
+LetterItem::LetterItem(char letter, QGraphicsScene *scene, QGraphicsItem *parent) : DemoItem(scene, parent), letter(letter)
+{
+    useSharedImage(QString(__FILE__) + letter);
+}
+
+LetterItem::~LetterItem()
+{
+}
+
+QImage *LetterItem::createImage(const QMatrix &matrix) const
+{
+    QRect scaledRect = matrix.mapRect(QRect(0, 0, 25, 25));
+    QImage *image = new QImage(scaledRect.width(), scaledRect.height(), QImage::Format_ARGB32_Premultiplied);
+    image->fill(0);
+    QPainter painter(image);
+    painter.scale(matrix.m11(), matrix.m22());
+    painter.setRenderHints(QPainter::TextAntialiasing | QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
+    painter.setPen(Qt::NoPen);
+    if (Colors::useEightBitPalette){
+        painter.setBrush(QColor(102, 175, 54));
+        painter.drawEllipse(0, 0, 25, 25);
+        painter.setFont(Colors::tickerFont());
+        painter.setPen(QColor(255, 255, 255));
+        painter.drawText(10, 15, QString(this->letter));
+    }
+    else {
+        QLinearGradient brush(0, 0, 0, 25);
+        brush.setSpread(QLinearGradient::PadSpread);
+        brush.setColorAt(0.0, QColor(102, 175, 54, 200));
+        brush.setColorAt(1.0, QColor(102, 175, 54, 60));
+        painter.setBrush(brush);
+        painter.drawEllipse(0, 0, 25, 25);
+        painter.setFont(Colors::tickerFont());
+        painter.setPen(QColor(255, 255, 255, 255));
+        painter.drawText(10, 15, QString(this->letter));
+    }
+    return image;
+}
+
+