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

   1 #include <QtGui>
   2
   3 #include "translucentbutton.h"
   4 #include "platform.h"
   5 #include "trace.h"
   6
   7 const int TranslucentButton::pixels = 95;
   8
   9 TranslucentButton::TranslucentButton(const QString &name_, QWidget *parent):
  10     QLabel(parent), name(name_), transparent(true)
  11 {
  12     setGeometry(0, 0, pixels, pixels);
  13     timer = new QTimer(this);
  14     timer->setSingleShot(true);
  15     connect(timer, SIGNAL(timeout()), this, SLOT(stopFlash()));
  16     show();
  17 }
  18
  19 void TranslucentButton::paintEvent(QPaintEvent *)
  20 {
  21     QPainter painter(this);
  22     if (!transparent) {
  23         painter.setRenderHint(QPainter::Antialiasing, true);
  24         painter.drawPixmap(0, 0, QPixmap(Platform::icon(name)).scaled(
  25                 QSize(pixels, pixels), Qt::IgnoreAspectRatio,
  26                 Qt::SmoothTransformation));
  27     } else {
  28         painter.fillRect(0, 0, pixels, pixels, Qt::NoBrush);
  29     }
  30 }
  31
  32 void TranslucentButton::flash(int duration)
  33 {
  34     show();
  35     raise();
  36     transparent = false;
  37     update();
  38     timer->start(duration);
  39 }
  40
  41 void TranslucentButton::stopFlash()
  42 {
  43     transparent = true;
  44     update();
  45 }
  46
  47 void TranslucentButton::mouseReleaseEvent(QMouseEvent *e)
  48 {
  49     Q_UNUSED(e);
  50     emit triggered();
  51     e->accept();
  52 }