kopete/libkopete/ui/webcamwidget.cpp

   1 /*
   2     webcamwidget.h - A simple widget for displaying webcam frames
   3
   4     Copyright (c) 2006 by Gustavo Pichorim Boiko   <gustavo.boiko@kdemail.net>
   5     Kopete    (c) 2002-2006 by the Kopete developers  <kopete-devel@kde.org>
   6
   7     *************************************************************************
   8     *                                                                       *
   9     * This program is free software; you can redistribute it and/or modify  *
  10     * it under the terms of the GNU General Public License as published by  *
  11     * the Free Software Foundation; either version 2 of the License, or     *
  12     * (at your option) any later version.                                   *
  13     *                                                                       *
  14     *************************************************************************
  15 */
  16
  17 #include "webcamwidget.h"
  18
  19 #include <QColor>
  20 #include <QPainter>
  21 #include <QPaintEvent>
  22
  23 #include <kdebug.h>
  24 namespace Kopete
  25 {
  26
  27 WebcamWidget::WebcamWidget(QWidget* parent)
  28 : QWidget(parent)
  29 {
  30         clear();
  31 }
  32
  33 WebcamWidget::~WebcamWidget()
  34 {
  35         // don't do anything either
  36 }
  37
  38 void WebcamWidget::updatePixmap(const QPixmap& pixmap)
  39 {
  40         mPixmap = pixmap;
  41         mText = "";
  42
  43         update();
  44 }
  45
  46 void WebcamWidget::clear()
  47 {
  48         mText = "";
  49         if (!mPixmap.isNull())
  50                 mPixmap = QPixmap(0,0);
  51
  52         update();
  53 }
  54
  55 void WebcamWidget::setText(const QString& text)
  56 {
  57         mText = text;
  58
  59         // for now redraw everything
  60         update();
  61 }
  62
  63 void WebcamWidget::paintEvent( QPaintEvent* event )
  64 {
  65         QVector<QRect> rects = event->region().rects();
  66
  67         QPainter p(this);
  68         if (!mPixmap.isNull())
  69         {
  70                 for (int i = 0; i < rects.count(); ++i)
  71                 {
  72                         p.drawPixmap(rects[i], mPixmap, rects[i]);
  73                 }
  74         }
  75         else
  76         {
  77                 for (int i = 0; i < rects.count(); ++i)
  78                 {
  79                         QColor bgColor = palette().color(QPalette::Background);
  80                         p.fillRect(rects[i], bgColor);
  81                 }
  82         }
  83
  84         // TODO: draw the text
  85         QRect r = p.boundingRect(rect(), Qt::AlignCenter | Qt::TextWordWrap, mText );
  86         if ( !mText.isEmpty() && event->rect().intersects(r))
  87         {
  88                 p.setPen(Qt::black);
  89                 QRect rec = rect();
  90                 rec.moveTopLeft(QPoint(1,1));
  91                 p.drawText(rec, Qt::AlignCenter | Qt::TextWordWrap, mText);
  92
  93                 rec.moveTopLeft(QPoint(-1,-1));
  94                 p.setPen(Qt::white);
  95                 p.drawText(rec, Qt::AlignCenter | Qt::TextWordWrap, mText);
  96         }
  97         p.end();
  98 }
  99
 100 } // end namespace Kopete
 101
 102 #include "webcamwidget.moc"