kwin-styles/riscos/Button.cpp

   1 /*
   2   RISC OS KWin client
   3
   4   Copyright 2000
   5     Rik Hemsley <rik@kde.org>
   6
   7   This program is free software; you can redistribute it and/or
   8   modify it under the terms of the GNU General Public
   9   License as published by the Free Software Foundation; either
  10   version 2 of the License, or (at your option) any later version.
  11
  12   This program is distributed in the hope that it will be useful,
  13   but WITHOUT ANY WARRANTY; without even the implied warranty of
  14   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15   General Public License for more details.
  16
  17   You should have received a copy of the GNU General Public License
  18   along with this program; see the file COPYING.  If not, write to
  19   the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
  20   Boston, MA 02110-1301, USA.
  21 */
  22
  23 #include <qtooltip.h>
  24 //Added by qt3to4:
  25 #include <QMouseEvent>
  26 #include <QPixmap>
  27 #include <QPaintEvent>
  28 #include "Button.h"
  29 #include "Static.h"
  30
  31 namespace RiscOS
  32 {
  33
  34 Button::Button(QWidget *parent, const QString& tip,
  35                const Qt::ButtonState realizeButtons)
  36   : QWidget(parent, "Button", 0),
  37     realizeButtons_(realizeButtons),
  38     lastButton_(Qt::NoButton),
  39     alignment_(Qt::DockLeft),
  40     down_     (false),
  41     active_   (false)
  42 {
  43    this->setToolTip( tip);
  44    setBackgroundColor(Qt::black);
  45
  46    setFixedSize(Static::instance()->titleHeight() - 1,
  47                 Static::instance()->titleHeight());
  48 }
  49
  50 Button::~Button()
  51 {
  52   // Empty.
  53 }
  54
  55 void Button::setAlignment(Alignment a)
  56 {
  57    alignment_ = a;
  58    repaint();
  59 }
  60
  61 void Button::setActive(bool b)
  62 {
  63    active_ = b;
  64    repaint();
  65 }
  66
  67 Button::Alignment Button::alignment() const
  68 {
  69    return alignment_;
  70 }
  71
  72 void Button::mousePressEvent(QMouseEvent *e)
  73 {
  74    down_ = true;
  75    lastButton_ = e->button();
  76    repaint();
  77
  78    QMouseEvent me(e->type(), e->pos(), e->globalPos(),
  79                   (e->button()&realizeButtons_) ? Qt::LeftButton : Qt::NoButton,
  80                   e->state());
  81    QWidget::mousePressEvent(&me);
  82 }
  83
  84 void Button::mouseReleaseEvent(QMouseEvent *e)
  85 {
  86    down_ = false;
  87    lastButton_ = e->button();
  88    repaint();
  89    QMouseEvent me(e->type(), e->pos(), e->globalPos(),
  90                   (e->button()&realizeButtons_) ? Qt::LeftButton : Qt::NoButton,
  91                   e->state());
  92    QWidget::mouseReleaseEvent(&me);
  93 }
  94
  95 void Button::setPixmap(const QPixmap &p)
  96 {
  97    if (QPixmap::defaultDepth() <= 8)
  98       aPixmap_ = iPixmap_ = p;
  99    else
 100    {
 101       QRgb light;
 102       QRgb* data = NULL;
 103       QRgb w = qRgb(255, 255, 255);
 104
 105       QImage aTx(p.convertToImage());
 106       QImage iTx(aTx.copy());
 107
 108       const KDecorationOptions* options = KDecoration::options();
 109       light = options->color(KDecoration::ColorButtonBg, true).light(150).rgb();
 110
 111       if (light == qRgb(0, 0, 0))
 112          light = qRgb(228, 228, 228);
 113
 114       data = (QRgb *)aTx.bits();
 115
 116       for (int x = 0; x < 144; x++)
 117          if (data[x] == w)
 118             data[x] = light;
 119
 120       light = options->color(KDecoration::ColorButtonBg, false).light(150).rgb();
 121
 122       if (light == qRgb(0, 0, 0))
 123          light = qRgb(228, 228, 228);
 124
 125       data = (QRgb *)iTx.bits();
 126
 127       for (int x = 0; x < 144; x++)
 128          if (data[x] == w)
 129             data[x] = light;
 130
 131       aPixmap_.convertFromImage(aTx);
 132       iPixmap_.convertFromImage(iTx);
 133
 134       if (0 != p.mask())
 135       {
 136          aPixmap_.setMask(*p.mask());
 137          iPixmap_.setMask(*p.mask());
 138       }
 139    }
 140    repaint();
 141 }
 142
 143 void Button::paintEvent(QPaintEvent *)
 144 {
 145    bitBlt(this, alignment_ == Left ? 1 : 0, 0,
 146           &Static::instance()->buttonBase(active_, down_));
 147
 148    int i = width() / 2 - 6;
 149
 150    bitBlt(this, alignment_ == Left ? i + 1 : i,
 151           i + 1, active_ ? &aPixmap_ : &iPixmap_);
 152 }
 153
 154 } // End namespace
 155
 156 // vim:ts=2:sw=2:tw=78
 157 #include "Button.moc"