ksnapshot/snapshottimer.cpp

   1 /*
   2  *  Copyright (C) 2007777777 Aaron J. Seigo <aseigo@kde.org>
   3  *
   4  *  This program is free software; you can redistribute it and/or modify
   5  *  it under the terms of the GNU Lesser General Public License as published by
   6  *  the Free Software Foundation; either version 2 of the License, or
   7  *  (at your option) any later version.
   8  *
   9  *  This program is distributed in the hope that it will be useful,
  10  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  *  GNU General Public License for more details.
  13  *
  14  *  You should have received a copy of the GNU Lesser General Public License
  15  *  along with this program; if not, write to the Free Software
  16  *  Foundation, Inc., 51 Franklin Street, Fifth Floor,
  17  *  Boston, MA 02110-1301, USA.
  18  */
  19
  20 #include <QTimerEvent>
  21 #include <QPainter>
  22 #include <QPaintEvent>
  23 #include <QToolTip>
  24
  25 #include <KDebug>
  26 #include <klocale.h>
  27
  28
  29 #include "snapshottimer.h"
  30
  31 SnapshotTimer::SnapshotTimer() : QWidget(0)
  32 {
  33     setWindowFlags( Qt::WindowStaysOnTopHint | Qt::FramelessWindowHint | Qt::X11BypassWindowManagerHint);
  34     // The text is copied from paintEvent and the maximum number is used as %1 argument + margins
  35     resize( fontMetrics().width( i18n("Snapshot will be taken in %1 seconds", 99) ) + 6 , fontMetrics().height() + 4 );
  36     connect(&timer, SIGNAL(timeout()), this, SLOT(bell()));
  37 }
  38
  39 SnapshotTimer::~SnapshotTimer()
  40 {
  41 }
  42
  43 void SnapshotTimer::start(int seconds)
  44 {
  45     show();
  46     time = 0;
  47     length = seconds;
  48     timer.start(1000);
  49 }
  50
  51 void SnapshotTimer::stop()
  52 {
  53     setVisible(false);
  54     hide();
  55     timer.stop();
  56 }
  57
  58 void SnapshotTimer::bell()
  59 {
  60     if (time == length - 1) {
  61         hide();
  62     } else {
  63         if (time == length) {
  64             emit timeout();
  65             timer.stop();
  66         }
  67     }
  68     ++time;
  69     update();
  70 }
  71
  72 void SnapshotTimer::paintEvent( QPaintEvent* e )
  73 {
  74     Q_UNUSED( e );
  75
  76     QPainter painter( this );
  77
  78     if (time < length) {
  79       QPalette pal(QToolTip::palette());
  80       QColor handleColor = pal.color( QPalette::Active, QPalette::Highlight );
  81       handleColor.setAlpha( 160 );
  82       QColor overlayColor( 0, 0, 0, 160 );
  83       QColor textColor = pal.color( QPalette::Active, QPalette::Text );
  84       QColor textBackgroundColor = pal.color( QPalette::Active, QPalette::Base );
  85
  86       painter.setPen( textColor );
  87       painter.setBrush( textBackgroundColor );
  88       QString helpText = i18np( "Snapshot will be taken in 1 second",
  89                                 "Snapshot will be taken in %1 seconds", ( length-time ) );
  90       QRect textRect = painter.boundingRect( rect().adjusted( 2, 2, -2, -2 ), Qt::TextSingleLine, helpText );
  91       textRect.adjust( -2, -2, 4, 2 );
  92       painter.drawRect( rect().adjusted(0,0,-1,-1) );
  93       textRect.moveTopLeft( QPoint( 3, 3 ) );
  94       painter.drawText(textRect, helpText);
  95     }
  96 }
  97