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/****************************************************************************
**
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
**
** This file is part of the demonstration applications of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** Commercial License Usage
** Licensees holding valid commercial Qt licenses may use this file in
** accordance with the commercial license agreement provided with the
** Software or, alternatively, in accordance with the terms contained in
** a written agreement between you and Digia. For licensing terms and
** conditions see http://qt.digia.com/licensing. For further information
** use the contact form at http://qt.digia.com/contact-us.
**
** 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, Digia gives you certain additional
** rights. These rights are described in the Digia Qt LGPL Exception
** version 1.1, 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.
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#include "headingitem.h"
#include "colors.h"
HeadingItem::HeadingItem(const QString &text, QGraphicsScene *scene, QGraphicsItem *parent)
: DemoItem(scene, parent)
{
this->text = text;
this->noSubPixeling = true;
}
QImage *HeadingItem::createImage(const QMatrix &matrix) const
{
float sx = qMin(matrix.m11(), matrix.m22());
float sy = matrix.m22() < sx ? sx : matrix.m22();
QFontMetrics fm(Colors::headingFont());
float w = fm.width(this->text) + 1;
float h = fm.height();
float xShadow = 3.0f;
float yShadow = 3.0f;
QImage *image = new QImage(int((w + xShadow) * sx), int((h + yShadow) * sy), QImage::Format_ARGB32_Premultiplied);
image->fill(QColor(0, 0, 0, 0).rgba());
QPainter painter(image);
painter.setFont(Colors::headingFont());
painter.scale(sx, sy);
//draw shadow
QLinearGradient brush_shadow(xShadow, yShadow, w, yShadow);
brush_shadow.setSpread(QLinearGradient::PadSpread);
if (Colors::useEightBitPalette)
brush_shadow.setColorAt(0.0f, QColor(0, 0, 0));
else
brush_shadow.setColorAt(0.0f, QColor(0, 0, 0, 100));
QPen pen_shadow;
pen_shadow.setBrush(brush_shadow);
painter.setPen(pen_shadow);
painter.drawText(int(xShadow), int(yShadow), int(w), int(h), Qt::AlignLeft, this->text);
// draw text
QLinearGradient brush_text(0, 0, w, w);
brush_text.setSpread(QLinearGradient::PadSpread);
brush_text.setColorAt(0.0f, QColor(255, 255, 255));
brush_text.setColorAt(0.2f, QColor(255, 255, 255));
brush_text.setColorAt(0.5f, QColor(190, 190, 190));
QPen pen_text;
pen_text.setBrush(brush_text);
painter.setPen(pen_text);
painter.drawText(0, 0, int(w), int(h), Qt::AlignLeft, this->text);
return image;
}
void HeadingItem::animationStarted(int)
{
this->noSubPixeling = false;
}
void HeadingItem::animationStopped(int)
{
this->noSubPixeling = true;
}
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