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340 lines
8.6 KiB
340 lines
8.6 KiB
/***************************************************************************
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glowbutton.cpp - description
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-------------------
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begin : Thu Sep 6 2001
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copyright : (C) 2001 by Henning Burchardt
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email : h_burchardt@gmx.net
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***************************************************************************/
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/***************************************************************************
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* *
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* This program is free software; you can redistribute it and/or modify *
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* it under the terms of the GNU General Public License as published by *
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* the Free Software Foundation; either version 2 of the License, or *
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* (at your option) any later version. *
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* *
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***************************************************************************/
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#include <math.h>
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#include <iostream>
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#include <vector>
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#include <tqmap.h>
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#include <tqpixmap.h>
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#include <tqpixmapcache.h>
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#include <tqbitmap.h>
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#include <tqpainter.h>
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#include <tqimage.h>
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#include <tqtimer.h>
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#include <tqtooltip.h>
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#include <kdecoration.h>
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#include <kiconeffect.h>
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#include "glowbutton.h"
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namespace Glow
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{
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//-----------------------------------------------------------------------------
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// PixmapCache
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//-----------------------------------------------------------------------------
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TQMap<TQString, const TQPixmap*> PixmapCache::m_pixmapMap;
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const TQPixmap* PixmapCache::find(const TQString& key)
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{
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TQMap<TQString, const TQPixmap*>::const_iterator it =
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m_pixmapMap.find(key);
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if( it != m_pixmapMap.end() )
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return *it;
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else
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return 0;
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}
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void PixmapCache::insert(const TQString& key, const TQPixmap *pixmap)
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{
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m_pixmapMap[key] = pixmap;
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}
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void PixmapCache::erase(const TQString& key)
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{
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TQMap<TQString, const TQPixmap*>::iterator it =
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m_pixmapMap.find(key);
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if (it != m_pixmapMap.end())
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{
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delete *it;
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m_pixmapMap.erase(it);
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}
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}
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void PixmapCache::clear()
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{
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// delete all pixmaps in the cache
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TQMap<TQString, const TQPixmap*>::const_iterator it
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= m_pixmapMap.begin();
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for(; it != m_pixmapMap.end(); ++it)
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delete *it;
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m_pixmapMap.clear();
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}
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//-----------------------------------------------------------------------------
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// GlowButton
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//-----------------------------------------------------------------------------
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GlowButton::GlowButton(TQWidget *parent, const char *name,
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const TQString& tip, const int realizeBtns)
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: TQButton(parent, name)
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{
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m_realizeButtons = realizeBtns;
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_steps = 0;
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m_updateTime = 50;
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m_pixmapName = TQString();
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m_timer = new TQTimer(this);
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connect(m_timer, TQT_SIGNAL(timeout()), this, TQT_SLOT(slotTimeout()));
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m_pos = 0;
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m_timerStatus = Stop;
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setTipText (tip);
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setCursor(arrowCursor);
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}
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GlowButton::~GlowButton()
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{
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}
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void GlowButton::setTipText( const TQString& tip )
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{
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if (KDecoration::options()->showTooltips())
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{
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TQToolTip::remove( this );
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TQToolTip::add( this, tip );
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}
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}
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TQString GlowButton::getPixmapName() const
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{
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return m_pixmapName;
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}
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TQt::ButtonState GlowButton::lastButton() const
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{
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return _last_button;
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}
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void GlowButton::setPixmapName(const TQString& pixmapName)
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{
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m_pixmapName = pixmapName;
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const TQPixmap *pixmap = PixmapCache::find(pixmapName);
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if( ! pixmap )
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return;
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// set steps
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_steps = pixmap->height()/pixmap->width() - 1;
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tqrepaint(false);
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}
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void GlowButton::paintEvent( TQPaintEvent *e )
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{
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TQWidget::paintEvent(e);
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const TQPixmap *pixmap = PixmapCache::find(m_pixmapName);
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if( pixmap != 0 )
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{
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int pos = m_pos>=0?m_pos:-m_pos;
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TQPainter p;
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TQPixmap pm (pixmap->size());
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p.begin(&pm);
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const TQPixmap * bg_pixmap = PixmapCache::find(
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TQString::number(parentWidget()->winId()));
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p.drawPixmap (0, 0, *bg_pixmap, x(), y(), width(), height());
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p.drawPixmap (0, 0, *pixmap, 0, pos*height(), width(), height());
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p.end();
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p.begin(this);
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p.drawPixmap (0, 0, pm);
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p.end();
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}
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}
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void GlowButton::enterEvent( TQEvent *e )
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{
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if( m_pos<0 )
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m_pos=-m_pos;
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m_timerStatus = Run;
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if( ! m_timer->isActive() )
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m_timer->start(m_updateTime);
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TQButton::enterEvent(e);
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}
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void GlowButton::leaveEvent( TQEvent *e )
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{
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m_timerStatus = Stop;
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if( ! m_timer->isActive() )
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m_timer->start(m_updateTime);
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TQButton::leaveEvent(e);
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}
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void GlowButton::mousePressEvent( TQMouseEvent *e )
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{
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_last_button = e->button();
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if( m_timer->isActive() )
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m_timer->stop();
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m_pos = _steps;
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tqrepaint(false);
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// without pretending LeftButton, clicking on the button with MidButton
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// or RightButton would cause unwanted titlebar action
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TQMouseEvent me (e->type(), e->pos(), e->globalPos(),
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(e->button()&m_realizeButtons)?Qt::LeftButton:Qt::NoButton, e->state());
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TQButton::mousePressEvent(&me);
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}
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void GlowButton::mouseReleaseEvent( TQMouseEvent *e )
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{
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_last_button = e->button();
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TQPoint p = mapToParent(mapFromGlobal(e->globalPos()));
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if( ! m_timer->isActive() ) {
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m_timer->start(m_updateTime);
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}
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if( ! tqgeometry().contains(p) ) {
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m_timerStatus = Stop;
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}
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TQMouseEvent me (e->type(), e->pos(), e->globalPos(),
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(e->button()&m_realizeButtons)?Qt::LeftButton:Qt::NoButton, e->state());
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TQButton::mouseReleaseEvent(&me);
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}
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void GlowButton::slotTimeout()
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{
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tqrepaint(false);
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if( m_pos>=_steps-1 ) {
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m_pos = -m_pos;
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}
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if( m_timerStatus==Stop ) {
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if( m_pos==0 ) {
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m_timer->stop();
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return;
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} else if( m_pos>0 ) {
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m_pos = -m_pos;
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}
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}
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m_pos++;
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}
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//-----------------------------------------------------------------------------
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// GlowButtonFactory
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//-----------------------------------------------------------------------------
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GlowButtonFactory::GlowButtonFactory()
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{
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_steps = 20;
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}
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int GlowButtonFactory::getSteps()
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{
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return _steps;
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}
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void GlowButtonFactory::setSteps(int steps)
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{
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_steps = steps;
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}
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TQPixmap * GlowButtonFactory::createGlowButtonPixmap(
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const TQImage & bg_image,
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const TQImage & fg_image,
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const TQImage & glow_image,
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const TQColor & color,
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const TQColor & glow_color)
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{
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if (bg_image.size() != fg_image.size()
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|| fg_image.size() != glow_image.size()) {
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std::cerr << "Image size error" << std::endl;
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return new TQPixmap();
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}
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TQImage colorized_bg_image = bg_image.copy();
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KIconEffect::colorize (colorized_bg_image, color, 1.0);
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int w = colorized_bg_image.width();
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int h = colorized_bg_image.height();
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TQImage image (w, (_steps+1)*h, 32);
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image.setAlphaBuffer (true);
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for (int i=0; i<_steps+1; ++i) {
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for (int y=0; y<h; ++y) {
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uint * src1_line = (uint*) colorized_bg_image.scanLine (y);
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uint * src2_line = (uint*) fg_image.scanLine (y);
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uint * dst_line = (uint*) image.scanLine (i*h+y);
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for (int x=0; x<w; ++x) {
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int r = tqRed (*(src1_line+x));
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int g = tqGreen (*(src1_line+x));
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int b = tqBlue (*(src1_line+x));
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int a = TQMAX (tqAlpha(*(src1_line+x)),tqGray(*(src2_line+x)));
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*(dst_line+x) = tqRgba (r, g, b, a);
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}
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}
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}
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TQPixmap * pixmap = new TQPixmap (image);
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TQPainter painter (pixmap);
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bool dark = (tqGray(color.rgb()) <= 127);
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TQImage fg_img (w, h, 32);
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fg_img.setAlphaBuffer (true);
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for (int y=0; y<h; ++y) {
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uint * src_line = (uint*) fg_image.scanLine (y);
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uint * dst_line = (uint*) fg_img.scanLine (y);
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for (int x=0; x<w; ++x) {
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int alpha = tqGray (*(src_line+x));
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if (dark)
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*(dst_line+x) = tqRgba (255, 255, 255, alpha);
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else
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*(dst_line+x) = tqRgba (0, 0, 0, alpha);
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}
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}
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int r = glow_color.red();
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int g = glow_color.green();
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int b = glow_color.blue();
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TQImage glow_img (w, h, 32);
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glow_img.setAlphaBuffer (true);
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for (int i=0; i<_steps; ++i) {
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painter.drawImage (0, i*h, fg_img);
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for (int y=0; y<h; ++y) {
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uint * src_line = (uint*) glow_image.scanLine(y);
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uint * dst_line = (uint*) glow_img.scanLine(y);
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for (int x=0; x<w; ++x) {
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int alpha =
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(int) (tqGray (*(src_line+x)) * ((double) i/_steps));
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*(dst_line+x) = tqRgba (r, g, b, alpha);
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}
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}
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painter.drawImage (0, i*h, glow_img);
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}
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painter.drawImage (0, _steps*h, fg_img);
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for (int y=0; y<h; ++y) {
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uint * src_line = (uint*) glow_image.scanLine (y);
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uint * dst_line = (uint*) glow_img.scanLine (y);
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for (int x=0; x<w; ++x) {
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int alpha = tqGray (*(src_line+x));
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*(dst_line+x) = tqRgba (r, g, b, alpha);
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}
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}
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painter.drawImage (0, _steps*h, glow_img);
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return pixmap;
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}
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GlowButton* GlowButtonFactory::createGlowButton(
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TQWidget *parent, const char* name, const TQString& tip, const int realizeBtns)
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{
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GlowButton *glowButton = new GlowButton(parent, name, tip, realizeBtns);
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return glowButton;
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}
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}
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#include "glowbutton.moc"
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