148 lines
4.9 KiB
C++
148 lines
4.9 KiB
C++
/*
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* Copyright 2008 Long Huynh Huu <long.upcase@googlemail.com>
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* Copyright 2007 Matthew Woehlke <mw_triad@users.sourceforge.net>
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* Copyright 2007 Casper Boemann <cbr@boemann.dk>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License version 2 as published by the Free Software Foundation.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#include "oxygendecohelper.h"
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#include <QtGui/QPainter>
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namespace Oxygen
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{
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//______________________________________________________________________________
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DecoHelper::DecoHelper(const QByteArray &componentName):
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OxygenHelper(componentName)
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{}
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//______________________________________________________________________________
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QPixmap DecoHelper::windecoButton(const QColor &color, bool pressed, int size)
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{
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quint64 key = (quint64(color.rgba()) << 32) | (size << 1) | (int)pressed;
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QPixmap *pixmap = m_windecoButtonCache.object(key);
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if (!pixmap)
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{
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pixmap = new QPixmap(size, size);
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pixmap->fill(Qt::transparent);
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QColor light = calcLightColor(color);
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QColor dark = calcDarkColor(color);
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QPainter p(pixmap);
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p.setRenderHints(QPainter::Antialiasing);
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p.setPen(Qt::NoPen);
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qreal u = size/18.0;
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p.translate( 0.5*u, (0.5-0.668)*u );
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{
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//plain background
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QLinearGradient lg( 0, u*1.665, 0, u*(12.33+1.665) );
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if( pressed )
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{
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lg.setColorAt( 1, light );
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lg.setColorAt( 0, dark );
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} else {
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lg.setColorAt( 0, light );
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lg.setColorAt( 1, dark );
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}
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QRectF r( u*0.5*(17-12.33), u*1.665, u*12.33, u*12.33 );
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p.setBrush( lg );
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p.drawEllipse( r );
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}
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{
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// outline circle
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qreal penWidth = 0.7;
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QLinearGradient lg( 0, u*1.665, 0, u*(2.0*12.33+1.665) );
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lg.setColorAt( 0, light );
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lg.setColorAt( 1, dark );
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QRectF r( u*0.5*(17-12.33+penWidth), u*(1.665+penWidth), u*(12.33-penWidth), u*(12.33-penWidth) );
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p.setPen( QPen( lg, penWidth*u ) );
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p.drawEllipse( r );
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p.end();
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}
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m_windecoButtonCache.insert(key, pixmap);
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}
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return *pixmap;
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}
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//_______________________________________________________________________
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QPixmap DecoHelper::windecoButtonGlow(const QColor &color, int size)
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{
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quint64 key = (quint64(color.rgba()) << 32) | size;
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QPixmap *pixmap = m_windecoButtonGlowCache.object(key);
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if (!pixmap)
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{
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pixmap = new QPixmap(size, size);
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pixmap->fill(Qt::transparent);
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// right now the same color is used for the two shadows
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QColor light = color;
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QColor dark = color;
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QPainter p(pixmap);
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p.setRenderHints(QPainter::Antialiasing);
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p.setPen(Qt::NoPen);
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qreal u = size/18.0;
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p.translate( 0.5*u, (0.5-0.668)*u );
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{
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// outer shadow
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QRadialGradient rg( u*8.5, u*8.5, u*8.5 );
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int nPoints = 5;
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qreal x[5] = { 0.61, 0.72, 0.81, 0.9, 1};
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qreal values[5] = { 255-172, 255-178, 255-210, 255-250, 0 };
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QColor c = dark;
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for( int i = 0; i<nPoints; i++ )
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{ c.setAlpha( values[i] ); rg.setColorAt( x[i], c ); }
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QRectF r( pixmap->rect() );
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p.setBrush( rg );
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p.drawRect( r );
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}
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{
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// inner shadow
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QRadialGradient rg( u*8.5, u*8.5, u*8.5 );
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static int nPoints = 6;
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qreal x[6] = { 0.61, 0.67, 0.7, 0.74, 0.78, 1 };
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qreal values[6] = { 255-92, 255-100, 255-135, 255-205, 255-250, 0 };
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QColor c = light;
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for( int i = 0; i<nPoints; i++ )
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{ c.setAlpha( values[i] ); rg.setColorAt( x[i], c ); }
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QRectF r( pixmap->rect() );
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p.setBrush( rg );
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p.drawRect( r );
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}
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m_windecoButtonGlowCache.insert(key, pixmap);
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}
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return *pixmap;
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}
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}
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