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 "waveform.h"
  16
  17
  18 Waveform::Waveform(Monitor *projMonitor, Monitor *clipMonitor, QWidget *parent) :
  19     QWidget(parent),
  20     m_projMonitor(projMonitor),
  21     m_clipMonitor(clipMonitor),
  22     m_activeRender(clipMonitor->render),
  23     initialDimensionUpdateDone(false)
  24 {
  25     setupUi(this);
  26     m_waveformGenerator = new WaveformGenerator();
  27
  28     connect(m_waveformGenerator, SIGNAL(signalCalculationFinished(QImage,uint)), this, SLOT(slotWaveformCalculated(QImage,uint)));
  29 }
  30
  31 Waveform::~Waveform()
  32 {
  33     delete m_waveformGenerator;
  34 }
  35
  36
  37
  38 void Waveform::updateDimensions()
  39 {
  40     // Distance from top/left/right
  41     int offset = 6;
  42
  43     QPoint topleft(offset, line->y()+offset);
  44
  45     m_scopeRect = QRect(topleft, this->size() - QSize(offset+topleft.x(), offset+topleft.y()));
  46 }
  47
  48
  49 ///// Events /////
  50
  51 void Waveform::paintEvent(QPaintEvent *)
  52 {
  53     if (!initialDimensionUpdateDone) {
  54         // This is a workaround.
  55         // When updating the dimensions in the constructor, the size
  56         // of the control items at the top are simply ignored! So do
  57         // it here instead.
  58         updateDimensions();
  59         initialDimensionUpdateDone = true;
  60     }
  61
  62     QPainter davinci(this);
  63     QPoint vinciPoint;
  64
  65     davinci.setRenderHint(QPainter::Antialiasing, true);
  66     davinci.fillRect(0, 0, this->size().width(), this->size().height(), QColor(25,25,23));
  67
  68     davinci.drawImage(m_scopeRect.topLeft(), m_waveform);
  69
  70 }
  71
  72 void Waveform::resizeEvent(QResizeEvent *event)
  73 {
  74     updateDimensions();
  75     m_waveformGenerator->calculateWaveform(m_scopeRect.size(), m_activeRender->extractFrame(m_activeRender->seekFramePosition()), true);
  76     QWidget::resizeEvent(event);
  77 }
  78
  79 void Waveform::mouseReleaseEvent(QMouseEvent *)
  80 {
  81     qDebug() << "Calculating scope now. Size: " << m_scopeRect.size().width() << "x" << m_scopeRect.size().height();
  82     m_waveformGenerator->calculateWaveform(m_scopeRect.size(), m_activeRender->extractFrame(m_activeRender->seekFramePosition()), true);
  83 }
  84
  85
  86 ///// Slots /////
  87
  88 void Waveform::slotWaveformCalculated(QImage waveform, const uint &msec)
  89 {
  90     qDebug() << "Waveform received. Time taken for rendering: " << msec << " ms. Painting it.";
  91     m_waveform = waveform;
  92     this->update();
  93 }
  94
  95 void Waveform::slotActiveMonitorChanged(bool isClipMonitor)
  96 {
  97     if (isClipMonitor) {
  98         m_activeRender = m_clipMonitor->render;
  99         disconnect(this, SLOT(slotRenderZoneUpdated()));
 100         connect(m_activeRender, SIGNAL(rendererPosition(int)), this, SLOT(slotRenderZoneUpdated()));
 101     } else {
 102         m_activeRender = m_projMonitor->render;
 103         disconnect(this, SLOT(slotRenderZoneUpdated()));
 104         connect(m_activeRender, SIGNAL(rendererPosition(int)), this, SLOT(slotRenderZoneUpdated()));
 105     }
 106 }
 107
 108 void Waveform::slotRenderZoneUpdated()
 109 {
 110     qDebug() << "Monitor incoming.";//New frames total: " << newFrames;
 111     // Monitor has shown a new frame
 112 //    newFrames.fetchAndAddRelaxed(1);
 113 //    if (cbAutoRefresh->isChecked()) {
 114 //        prodCalcThread();
 115 //    }
 116 }