Alessandro Bonazzi
8c43d5cf2f
Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
105 lines
3.9 KiB
C++
105 lines
3.9 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "headingitem.h"
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#include "colors.h"
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HeadingItem::HeadingItem(const QString &text, QGraphicsScene *scene, QGraphicsItem *parent)
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: DemoItem(scene, parent)
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{
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this->text = text;
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this->noSubPixeling = true;
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}
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QImage *HeadingItem::createImage(const QMatrix &matrix) const
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{
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float sx = qMin(matrix.m11(), matrix.m22());
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float sy = matrix.m22() < sx ? sx : matrix.m22();
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QFontMetrics fm(Colors::headingFont());
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float w = fm.width(this->text) + 1;
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float h = fm.height();
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float xShadow = 3.0f;
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float yShadow = 3.0f;
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QImage *image = new QImage(int((w + xShadow) * sx), int((h + yShadow) * sy), QImage::Format_ARGB32_Premultiplied);
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image->fill(QColor(0, 0, 0, 0).rgba());
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QPainter painter(image);
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painter.setFont(Colors::headingFont());
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painter.scale(sx, sy);
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//draw shadow
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QLinearGradient brush_shadow(xShadow, yShadow, w, yShadow);
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brush_shadow.setSpread(QLinearGradient::PadSpread);
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if (Colors::useEightBitPalette)
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brush_shadow.setColorAt(0.0f, QColor(0, 0, 0));
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else
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brush_shadow.setColorAt(0.0f, QColor(0, 0, 0, 100));
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QPen pen_shadow;
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pen_shadow.setBrush(brush_shadow);
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painter.setPen(pen_shadow);
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painter.drawText(int(xShadow), int(yShadow), int(w), int(h), Qt::AlignLeft, this->text);
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// draw text
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QLinearGradient brush_text(0, 0, w, w);
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brush_text.setSpread(QLinearGradient::PadSpread);
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brush_text.setColorAt(0.0f, QColor(255, 255, 255));
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brush_text.setColorAt(0.2f, QColor(255, 255, 255));
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brush_text.setColorAt(0.5f, QColor(190, 190, 190));
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QPen pen_text;
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pen_text.setBrush(brush_text);
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painter.setPen(pen_text);
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painter.drawText(0, 0, int(w), int(h), Qt::AlignLeft, this->text);
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return image;
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}
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void HeadingItem::animationStarted(int)
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{
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this->noSubPixeling = false;
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}
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void HeadingItem::animationStopped(int)
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{
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this->noSubPixeling = true;
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}
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