git.sesse.net Git - kdenlive/blob - src/waveform.cpp

   1 /***************************************************************************
   2  *   Copyright (C) 2010 by Simon Andreas Eugster (simon.eu@gmail.com)      *
   3  *   This file is part of kdenlive. See www.kdenlive.org.                  *
   4  *                                                                         *
   5  *   This program is free software; you can redistribute it and/or modify  *
   6  *   it under the terms of the GNU General Public License as published by  *
   7  *   the Free Software Foundation; either version 2 of the License, or     *
   8  *   (at your option) any later version.                                   *
   9  ***************************************************************************/
  10
  11 #include <QPainter>
  12 #include <QPoint>
  13 #include <QDebug>
  14
  15 #include "renderer.h"
  16 #include "waveform.h"
  17 #include "waveformgenerator.h"
  18
  19
  20 Waveform::Waveform(Monitor *projMonitor, Monitor *clipMonitor, QWidget *parent) :
  21     AbstractScopeWidget(projMonitor, clipMonitor, parent),
  22     initialDimensionUpdateDone(false)
  23 {
  24     ui = new Ui::Waveform_UI();
  25     ui->setupUi(this);
  26
  27     ui->paintMode->addItem(i18n("Yellow"), QVariant(WaveformGenerator::PaintMode_Yellow));
  28     ui->paintMode->addItem(i18n("Green"), QVariant(WaveformGenerator::PaintMode_Green));
  29
  30
  31     bool b = true;
  32     b &= connect(ui->paintMode, SIGNAL(currentIndexChanged(int)), this, SLOT(forceUpdateScope()));
  33     Q_ASSERT(b);
  34
  35
  36     init();
  37     m_waveformGenerator = new WaveformGenerator();
  38 }
  39
  40 Waveform::~Waveform()
  41 {
  42     writeConfig();
  43
  44     delete m_waveformGenerator;
  45 }
  46
  47 void Waveform::readConfig()
  48 {
  49     AbstractScopeWidget::readConfig();
  50
  51     KSharedConfigPtr config = KGlobal::config();
  52     KConfigGroup scopeConfig(config, configName());
  53     ui->paintMode->setCurrentIndex(scopeConfig.readEntry("paintmode", 0));
  54 }
  55
  56 void Waveform::writeConfig()
  57 {
  58     KSharedConfigPtr config = KGlobal::config();
  59     KConfigGroup scopeConfig(config, configName());
  60     scopeConfig.writeEntry("paintmode", ui->paintMode->currentIndex());
  61     scopeConfig.sync();
  62 }
  63
  64
  65 QRect Waveform::scopeRect()
  66 {
  67     // Distance from top/left/right
  68     int offset = 6;
  69
  70     QPoint topleft(offset, ui->verticalSpacer->geometry().y()+offset);
  71
  72     return QRect(topleft, this->size() - QSize(offset+topleft.x(), offset+topleft.y()));
  73 }
  74
  75
  76 ///// Implemented methods /////
  77
  78 QString Waveform::widgetName() const { return QString("Waveform"); }
  79 bool Waveform::isHUDDependingOnInput() const { return false; }
  80 bool Waveform::isScopeDependingOnInput() const { return true; }
  81 bool Waveform::isBackgroundDependingOnInput() const { return false; }
  82
  83 QImage Waveform::renderHUD(uint)
  84 {
  85     emit signalHUDRenderingFinished(0, 1);
  86     return QImage();
  87 }
  88
  89 QImage Waveform::renderScope(uint accelFactor, QImage qimage)
  90 {
  91     QTime start = QTime::currentTime();
  92     start.start();
  93
  94     int paintmode = ui->paintMode->itemData(ui->paintMode->currentIndex()).toInt();
  95     QImage wave = m_waveformGenerator->calculateWaveform(scopeRect().size(), qimage, (WaveformGenerator::PaintMode) paintmode,
  96                                                          true, accelFactor);
  97
  98     emit signalScopeRenderingFinished(start.elapsed(), 1);
  99     return wave;
 100 }
 101
 102 QImage Waveform::renderBackground(uint)
 103 {
 104     emit signalBackgroundRenderingFinished(0, 1);
 105     return QImage();
 106 }