vcs.maemo.org Git - dorian/blob - widgets/translucentbutton.cpp

   1 #include <QtGui>
   2
   3 #include "translucentbutton.h"
   4 #include "platform.h"
   5
   6 const int TranslucentButton::pixels = 95;
   7
   8 TranslucentButton::TranslucentButton(const QString &name_, QWidget *parent):
   9     QLabel(parent), name(name_), transparent(true)
  10 {
  11     setGeometry(0, 0, pixels, pixels);
  12     timer = new QTimer(this);
  13     timer->setSingleShot(true);
  14     connect(timer, SIGNAL(timeout()), this, SLOT(stopFlash()));
  15     show();
  16 }
  17
  18 void TranslucentButton::paintEvent(QPaintEvent *)
  19 {
  20     QPainter painter(this);
  21     if (!transparent) {
  22         painter.setRenderHint(QPainter::Antialiasing, true);
  23         painter.drawPixmap(0, 0, QPixmap(Platform::icon(name)).scaled(
  24                 QSize(pixels, pixels), Qt::IgnoreAspectRatio,
  25                 Qt::SmoothTransformation));
  26     } else {
  27         painter.fillRect(0, 0, pixels, pixels, Qt::NoBrush);
  28     }
  29 }
  30
  31 void TranslucentButton::flash(int duration)
  32 {
  33     show();
  34     raise();
  35     transparent = false;
  36     update();
  37     timer->start(duration);
  38 }
  39
  40 void TranslucentButton::stopFlash()
  41 {
  42     transparent = true;
  43     update();
  44 }
  45
  46 void TranslucentButton::mouseReleaseEvent(QMouseEvent *e)
  47 {
  48     Q_UNUSED(e);
  49     emit triggered();
  50     e->accept();
  51 }