Audio Spectrum: Linear interpolation fixed for peaks (Hack; See source code comments)

[kdenlive] / src / monitorscene.cpp

diff --git a/src/monitorscene.cpp b/src/monitorscene.cpp
index e52e7e9cb6a2711dac2bacb528b328e3a004f609..2d913c546d852a039f9cda3c19bd7f78a212b415 100644 (file)
--- a/src/monitorscene.cpp
+++ b/src/monitorscene.cpp
@@ -20,69 +20,174 @@
 
 #include "monitorscene.h"
 #include "renderer.h"
+#include "onmonitoritems/onmonitorrectitem.h"
+#include "kdenlivesettings.h"
 
 #include <QGraphicsView>
 #include <QGraphicsPixmapItem>
-#include <QtCore>
+#include <QGraphicsSceneMouseEvent>
 
 MonitorScene::MonitorScene(Render *renderer, QObject* parent) :
         QGraphicsScene(parent),
-        m_renderer(renderer)
+        m_renderer(renderer),
+        m_view(NULL),
+        m_backgroundImage(QImage()),
+        m_enabled(true),
+        m_zoom(1.0)
 {
-}
-
-void MonitorScene::setUp()
-{
-    setBackgroundBrush(QBrush(QColor(0, 0, 255)));
+    setBackgroundBrush(QBrush(QColor(KdenliveSettings::window_background().name())));
 
     QPen framepen(Qt::DotLine);
     framepen.setColor(Qt::red);
 
-    m_frameBorder = new QGraphicsRectItem(QRectF(0, 0, m_renderer->renderWidth(), m_renderer->renderHeight()));
+    m_frameBorder = new QGraphicsRectItem(QRectF(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight()));
     m_frameBorder->setPen(framepen);
-    m_frameBorder->setZValue(-9);
+    m_frameBorder->setZValue(-1);
     m_frameBorder->setBrush(Qt::transparent);
     m_frameBorder->setFlags(0);
     addItem(m_frameBorder);
 
-    m_lastUpdate.start();
+    m_lastUpdate = QTime::currentTime();
     m_background = new QGraphicsPixmapItem();
-    m_background->setZValue(-10);
+    m_background->setZValue(-2);
     m_background->setFlags(0);
-    QPixmap bg(m_renderer->renderWidth(), m_renderer->renderHeight());
+    m_background->setShapeMode(QGraphicsPixmapItem::BoundingRectShape);
+    m_background->setTransformationMode(Qt::FastTransformation);
+    QPixmap bg(m_renderer->frameRenderWidth(), m_renderer->renderHeight());
     bg.fill();
     m_background->setPixmap(bg);
     addItem(m_background);
 
-    connect(m_renderer, SIGNAL(rendererPosition(int)), this, SLOT(slotUpdateBackground()));
-    connect(m_renderer, SIGNAL(frameUpdated(int)), this, SLOT(slotUpdateBackground()));
-    slotUpdateBackground();
-    views().at(0)->fitInView(m_frameBorder, Qt::KeepAspectRatio);
-    views().at(0)->centerOn(m_frameBorder);
+    connect(m_renderer, SIGNAL(frameUpdated(QImage)), this, SLOT(slotSetBackgroundImage(QImage)));
+}
+
+void MonitorScene::setUp()
+{
+    if (views().count() > 0) {
+        m_view = views().at(0);
+        m_view->setViewportUpdateMode(QGraphicsView::FullViewportUpdate);
+    } else {
+        m_view = NULL;
+    }
+}
+
+void MonitorScene::resetProfile()
+{
+    const QRectF border(0, 0, m_renderer->frameRenderWidth(), m_renderer->renderHeight());
+    m_frameBorder->setRect(border);
+}
+
+void MonitorScene::setEnabled(bool enabled)
+{
+    m_enabled = enabled;
 }
 
 void MonitorScene::slotUpdateBackground()
 {
-    if (views().count() > 0 && views().at(0)->isVisible()) {
-        if (m_lastUpdate.elapsed() > 200) {
-            m_background->setPixmap(QPixmap::fromImage(m_renderer->extractFrame(m_renderer->seekFramePosition())));
-            views().at(0)->fitInView(m_frameBorder, Qt::KeepAspectRatio);
-            views().at(0)->centerOn(m_frameBorder);
-            m_lastUpdate.start();
+    if (m_view && m_view->isVisible()) {
+        if (m_lastUpdate.msecsTo(QTime::currentTime()) > 100) {
+            m_background->setPixmap(QPixmap::fromImage(m_backgroundImage));
+            m_lastUpdate = QTime::currentTime();
         }
     }
 }
 
-void MonitorScene::mousePressEvent(QGraphicsSceneMouseEvent* event)
+void MonitorScene::slotSetBackgroundImage(const QImage &image)
+{
+    if (m_view && m_view->isVisible()) {
+        m_backgroundImage = image;
+        slotUpdateBackground();
+    }
+}
+
+void MonitorScene::slotZoom(int value)
+{
+    if (m_view) {
+        m_zoom = value / 100.0;
+        m_view->resetTransform();
+        m_view->scale(m_renderer->renderWidth() * m_zoom / m_renderer->frameRenderWidth(), m_zoom);
+        emit zoomChanged(value);
+    }
+}
+
+void MonitorScene::slotZoomFit()
+{
+    if (m_view) {
+        int xzoom = 100 * m_view->viewport()->height() / m_renderer->renderHeight();
+        int yzoom = 100 * m_view->viewport()->width() / m_renderer->renderWidth();
+        slotZoom(qMin(xzoom, yzoom));
+        m_view->centerOn(m_frameBorder);
+    }
+}
+
+void MonitorScene::slotZoomOriginal()
 {
-    QGraphicsScene::mousePressEvent(event);
+    slotZoom(100);
+    if (m_view)
+        m_view->centerOn(m_frameBorder);
+}
+
+void MonitorScene::slotZoomOut(int by)
+{
+    slotZoom(qMax(0, (int)(m_zoom * 100 - by)));
+}
+
+void MonitorScene::slotZoomIn(int by)
+{
+    slotZoom(qMin(300, (int)(m_zoom * 100 + by + 0.5)));
+}
+
+void MonitorScene::slotSetCursor(const QCursor &cursor)
+{
+    if (m_view)
+        m_view->setCursor(cursor);
 }
 
 
-void MonitorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent* event)
+void MonitorScene::mousePressEvent(QGraphicsSceneMouseEvent *event)
 {
-    QGraphicsScene::mouseReleaseEvent(event);
-    emit actionFinished();
+    emit mousePressed(event);
+
+    if (!event->isAccepted())
+        QGraphicsScene::mousePressEvent(event);
+}
+
+void MonitorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    emit mouseMoved(event);
+
+    if (!event->isAccepted())
+        QGraphicsScene::mouseMoveEvent(event);
+}
+
+void MonitorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
+{
+    emit mouseReleased(event);
+
+    if (!event->isAccepted())
+        QGraphicsScene::mouseReleaseEvent(event);
+}
+
+void MonitorScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent* event)
+{
+    Q_UNUSED(event);
+
+    if (!m_enabled)
+        emit addKeyframe();
+}
+
+void MonitorScene::wheelEvent(QGraphicsSceneWheelEvent* event)
+{
+    if (event->modifiers() == Qt::ControlModifier) {
+        if (event->delta() > 0)
+            slotZoomIn(5);
+        else
+            slotZoomOut(5);
+
+        event->accept();
+    } else {
+        QGraphicsScene::wheelEvent(event);
+    }
 }
 
 #include "monitorscene.moc"