kmahjongg/TileSprite.cpp

   1 /*
   2     Copyright 2006 Mauricio Piacentini  <mauricio@tabuleiro.com>
   3     begin                : Oct 31 2006
   4
   5     Kmahjongg is free software; you can redistribute it and/or modify
   6     it under the terms of the GNU General Public License as published by
   7     the Free Software Foundation; either version 2 of the License, or
   8     (at your option) any later version.
   9
  10     This program is distributed in the hope that it will be useful,
  11     but WITHOUT ANY WARRANTY; without even the implied warranty of
  12     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13     GNU General Public License for more details.
  14
  15     You should have received a copy of the GNU General Public License
  16     along with this program; if not, write to the Free Software
  17     Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
  18 */
  19
  20 #include "TileSprite.h"
  21 #include <QPixmap>
  22 #include <QTimer>
  23
  24 TileSprite::TileSprite( KGameCanvasAbstract* canvas, QPixmap & backunselected, QPixmap & backselected, QPixmap & face, TileViewAngle angle, bool selected )
  25     : QObject(), KGameCanvasItem(canvas)
  26 {
  27     m_dying = false;
  28     setOpacity(255);
  29     m_backselected = backselected;
  30     m_backunselected = backunselected;
  31     m_face = face;
  32     m_selected = selected;
  33     m_angle = angle;
  34     m_woffset = m_backselected.width() - m_face.width();
  35     m_hoffset = m_backselected.height() - m_face.height();
  36     updateOffset();
  37 }
  38
  39 TileSprite::~TileSprite()
  40 {
  41 }
  42
  43 void TileSprite::setAngle(TileViewAngle angle, QPixmap & backunselected, QPixmap & backselected) {
  44     m_angle = angle;
  45     m_backselected = backselected;
  46     m_backunselected = backunselected;
  47     updateOffset();
  48     //changed(); We need to call updateSpriteMap to relayer anyway
  49 }
  50
  51 void TileSprite::updateOffset() {
  52     switch( m_angle )
  53         {
  54             case NW:
  55                 m_faceoffset = QPoint(m_woffset,0);
  56                 break;
  57             case NE:
  58                 m_faceoffset = QPoint(0,0);
  59                 break;
  60             case SE:
  61                 m_faceoffset = QPoint(0,m_hoffset);
  62                 break;
  63             case SW:
  64                 m_faceoffset = QPoint(m_woffset,m_hoffset);
  65                 break;
  66         }
  67 }
  68
  69 void TileSprite::paintInternal(QPainter* p, const QRect& /*prect*/,
  70                   const QRegion& /*preg*/, const QPoint& /*delta*/, double cumulative_opacity) {
  71   int op = int(cumulative_opacity*opacity() + 0.5);
  72
  73   if(op <= 0)
  74     return;
  75
  76   if(op < 255)
  77     p->setOpacity( op/255.0 );
  78     paint(p);
  79   if(op < 255)
  80     p->setOpacity(1.0);
  81 }
  82
  83 void TileSprite::paint(QPainter* p) {
  84   if (m_selected) {
  85           p->drawPixmap(pos(), m_backselected);
  86           p->drawPixmap(pos()+m_faceoffset, m_face);
  87   } else {
  88           p->drawPixmap(pos(), m_backunselected);
  89           p->drawPixmap(pos()+m_faceoffset, m_face);
  90   }
  91 }
  92
  93 void TileSprite::fadeOut() {
  94     m_dying = true;
  95     setOpacity(opacity()-25);
  96     if (opacity() <= 0) {
  97         //cancel fade and schedule our destruction!
  98         deleteLater();
  99         return;
 100     }
 101     //keep fading
 102     QTimer::singleShot(40, this, SLOT(fadeOut()));
 103 }
 104
 105 void TileSprite::fadeIn() {
 106     if (m_dying) return;
 107     setOpacity(opacity()+25);
 108     if ((opacity() == 255)||(m_dying)) {
 109         //cancel fade in
 110         return;
 111     }
 112     //keep fading
 113     QTimer::singleShot(40, this, SLOT(fadeIn()));
 114 }
 115
 116 QRect TileSprite::rect() const {
 117     return QRect(pos(), m_backselected.size());
 118 }
 119
 120 #include "TileSprite.moc"