Mercurial > hg > svcore

annotate base/ViewManager.cpp @ 7:49a95b174050

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
* Add more icons and rationalise menu options to the usual set (on the File menu) * Fixes to import/export of dense 3-D data sets and imported models
author Chris Cannam
date Thu, 19 Jan 2006 17:59:11 +0000
parents d86891498eef
children 214054a0d8b8
rev   line source
Chris@0 1 /* -*- c-basic-offset: 4 -*- vi:set ts=8 sts=4 sw=4: */
Chris@0 2
Chris@0 3 /*
Chris@0 4 A waveform viewer and audio annotation editor.
Chris@2 5 Chris Cannam, Queen Mary University of London, 2005-2006
Chris@0 6
Chris@0 7 This is experimental software. Not for distribution.
Chris@0 8 */
Chris@0 9
Chris@0 10 #include "ViewManager.h"
Chris@0 11 #include "AudioPlaySource.h"
Chris@0 12 #include "PlayParameters.h"
Chris@0 13 #include "Model.h"
Chris@0 14
Chris@0 15 #include <iostream>
Chris@0 16
Chris@0 17 //#define DEBUG_VIEW_MANAGER 1
Chris@0 18
Chris@0 19 ViewManager::ViewManager() :
Chris@0 20 m_playSource(0),
Chris@0 21 m_globalCentreFrame(0),
Chris@0 22 m_globalZoom(1024),
Chris@0 23 m_lastLeft(0),
Chris@0 24 m_lastRight(0)
Chris@0 25 {
Chris@0 26 connect(this,
Chris@0 27 SIGNAL(centreFrameChanged(void *, unsigned long, bool)),
Chris@0 28 SLOT(considerSeek(void *, unsigned long, bool)));
Chris@0 29
Chris@0 30 connect(this,
Chris@0 31 SIGNAL(zoomLevelChanged(void *, unsigned long, bool)),
Chris@0 32 SLOT(considerZoomChange(void *, unsigned long, bool)));
Chris@0 33 }
Chris@0 34
Chris@0 35 unsigned long
Chris@0 36 ViewManager::getGlobalCentreFrame() const
Chris@0 37 {
Chris@0 38 #ifdef DEBUG_VIEW_MANAGER
Chris@0 39 std::cout << "ViewManager::getGlobalCentreFrame: returning " << m_globalCentreFrame << std::endl;
Chris@0 40 #endif
Chris@0 41 return m_globalCentreFrame;
Chris@0 42 }
Chris@0 43
Chris@0 44 unsigned long
Chris@0 45 ViewManager::getGlobalZoom() const
Chris@0 46 {
Chris@0 47 #ifdef DEBUG_VIEW_MANAGER
Chris@0 48 std::cout << "ViewManager::getGlobalZoom: returning " << m_globalZoom << std::endl;
Chris@0 49 #endif
Chris@0 50 return m_globalZoom;
Chris@0 51 }
Chris@0 52
Chris@0 53 void
Chris@0 54 ViewManager::setAudioPlaySource(AudioPlaySource *source)
Chris@0 55 {
Chris@0 56 if (!m_playSource) {
Chris@0 57 QTimer::singleShot(100, this, SLOT(checkPlayStatus()));
Chris@0 58 }
Chris@0 59 m_playSource = source;
Chris@0 60 }
Chris@0 61
Chris@0 62 PlayParameters *
Chris@0 63 ViewManager::getPlayParameters(const Model *model)
Chris@0 64 {
Chris@0 65 if (m_playParameters.find(model) == m_playParameters.end()) {
Chris@0 66 // Give all models the same type of play parameters for the moment
Chris@0 67 m_playParameters[model] = new PlayParameters;
Chris@0 68 }
Chris@0 69
Chris@0 70 return m_playParameters[model];
Chris@0 71 }
Chris@0 72
Chris@0 73 void
Chris@0 74 ViewManager::clearPlayParameters()
Chris@0 75 {
Chris@0 76 while (!m_playParameters.empty()) {
Chris@0 77 delete m_playParameters.begin()->second;
Chris@0 78 m_playParameters.erase(m_playParameters.begin());
Chris@0 79 }
Chris@0 80 }
Chris@0 81
Chris@0 82 void
Chris@0 83 ViewManager::checkPlayStatus()
Chris@0 84 {
Chris@0 85 if (m_playSource && m_playSource->isPlaying()) {
Chris@0 86
Chris@0 87 float left = 0, right = 0;
Chris@0 88 if (m_playSource->getOutputLevels(left, right)) {
Chris@0 89 if (left != m_lastLeft || right != m_lastRight) {
Chris@0 90 emit outputLevelsChanged(left, right);
Chris@0 91 m_lastLeft = left;
Chris@0 92 m_lastRight = right;
Chris@0 93 }
Chris@0 94 }
Chris@0 95
Chris@0 96 m_globalCentreFrame = m_playSource->getCurrentPlayingFrame();
Chris@0 97
Chris@0 98 #ifdef DEBUG_VIEW_MANAGER
Chris@0 99 std::cout << "ViewManager::checkPlayStatus: Playing, frame " << m_globalCentreFrame << ", levels " << m_lastLeft << "," << m_lastRight << std::endl;
Chris@0 100 #endif
Chris@0 101
Chris@0 102 emit playbackFrameChanged(m_globalCentreFrame);
Chris@0 103
Chris@0 104 QTimer::singleShot(20, this, SLOT(checkPlayStatus()));
Chris@0 105
Chris@0 106 } else {
Chris@0 107
Chris@0 108 QTimer::singleShot(100, this, SLOT(checkPlayStatus()));
Chris@0 109
Chris@0 110 if (m_lastLeft != 0.0 || m_lastRight != 0.0) {
Chris@0 111 emit outputLevelsChanged(0.0, 0.0);
Chris@0 112 m_lastLeft = 0.0;
Chris@0 113 m_lastRight = 0.0;
Chris@0 114 }
Chris@0 115
Chris@0 116 #ifdef DEBUG_VIEW_MANAGER
Chris@0 117 // std::cout << "ViewManager::checkPlayStatus: Not playing" << std::endl;
Chris@0 118 #endif
Chris@0 119 }
Chris@0 120 }
Chris@0 121
Chris@0 122 void
Chris@0 123 ViewManager::considerSeek(void *p, unsigned long f, bool locked)
Chris@0 124 {
Chris@0 125 if (locked) {
Chris@0 126 m_globalCentreFrame = f;
Chris@0 127 }
Chris@0 128
Chris@0 129 #ifdef DEBUG_VIEW_MANAGER
Chris@0 130 std::cout << "ViewManager::considerSeek(" << p << ", " << f << ", " << locked << ")" << std::endl;
Chris@0 131 #endif
Chris@0 132
Chris@0 133 if (p == this || !locked) return;
Chris@0 134
Chris@0 135 if (m_playSource && m_playSource->isPlaying()) {
Chris@0 136 unsigned long playFrame = m_playSource->getCurrentPlayingFrame();
Chris@0 137 unsigned long diff = std::max(f, playFrame) - std::min(f, playFrame);
Chris@0 138 if (diff > 20000) {
Chris@0 139 m_playSource->play(f);
Chris@0 140 #ifdef DEBUG_VIEW_MANAGER
Chris@0 141 std::cout << "ViewManager::considerSeek: reseeking from " << playFrame << " to " << f << std::endl;
Chris@0 142 #endif
Chris@0 143 }
Chris@0 144 }
Chris@0 145 }
Chris@0 146
Chris@0 147 void
Chris@0 148 ViewManager::considerZoomChange(void *p, unsigned long z, bool locked)
Chris@0 149 {
Chris@0 150 if (locked) {
Chris@0 151 m_globalZoom = z;
Chris@0 152 }
Chris@0 153
Chris@0 154 #ifdef DEBUG_VIEW_MANAGER
Chris@0 155 std::cout << "ViewManager::considerZoomChange(" << p << ", " << z << ", " << locked << ")" << std::endl;
Chris@0 156 #endif
Chris@0 157 }
Chris@0 158
Chris@0 159 #ifdef INCLUDE_MOCFILES
Chris@0 160 #include "ViewManager.moc.cpp"
Chris@0 161 #endif
Chris@0 162