Prepare checking of removed / deleted files in a project:

[kdenlive] / src / keyframehelper.cpp

diff --git a/src/keyframehelper.cpp b/src/keyframehelper.cpp
index 5dbfd1e64d99bd96d4a245c21268caed90a628f1..9d760c52ba1440e410dea5c70f9d94e3b6598bee 100644 (file)
--- a/src/keyframehelper.cpp
+++ b/src/keyframehelper.cpp
@@ -26,22 +26,60 @@
 
 #include <QMouseEvent>
 #include <QStylePainter>
+#include <QApplication>
 
 
-KeyframeHelper::KeyframeHelper(QWidget *parent)
-        : QWidget(parent), m_geom(NULL), m_position(0), m_scale(0) {
+KeyframeHelper::KeyframeHelper(QWidget *parent) :
+        QWidget(parent),
+        m_geom(NULL),
+        m_position(0),
+        m_scale(0),
+        m_movingKeyframe(false)
+{
     setFont(KGlobalSettings::toolBarFont());
 }
 
 // virtual
-void KeyframeHelper::mousePressEvent(QMouseEvent * event) {
+void KeyframeHelper::mousePressEvent(QMouseEvent * event)
+{
+    if (m_geom != NULL && (event->y() < height() / 2) && event->button() == Qt::LeftButton) {
+        // check if we want to move a keyframe
+        int mousePos = qMax((int)(event->x() / m_scale), 0);
+        Mlt::GeometryItem item;
+        if (m_geom->next_key(&item, mousePos) == 0) {
+            if (qAbs(item.frame() * m_scale - (int)(event->x())) < 3) {
+                m_movingItem.x(item.x());
+                m_movingItem.y(item.y());
+                m_movingItem.w(item.w());
+                m_movingItem.h(item.h());
+                m_movingItem.mix(item.mix());
+                m_movingItem.frame(item.frame());
+                m_dragStart = event->pos();
+                m_movingKeyframe = true;
+                return;
+            }
+        }
+    }
     m_position = event->x() / m_scale;
     emit positionChanged(m_position);
     update();
 }
 
 // virtual
-void KeyframeHelper::mouseMoveEvent(QMouseEvent * event) {
+void KeyframeHelper::mouseMoveEvent(QMouseEvent * event)
+{
+    if (m_movingKeyframe) {
+        if (!m_dragStart.isNull()) {
+            if ((event->pos() - m_dragStart).manhattanLength() < QApplication::startDragDistance()) return;
+            m_dragStart = QPoint();
+            m_geom->remove(m_movingItem.frame());
+        }
+        int pos = qMax(0, (int)(event->x() / m_scale));
+        pos = qMin(m_length, pos);
+        m_movingItem.frame(pos);
+        update();
+        return;
+    }
     m_position = event->x() / m_scale;
     m_position = qMax(0, m_position);
     m_position = qMin(m_length, m_position);
@@ -49,9 +87,37 @@ void KeyframeHelper::mouseMoveEvent(QMouseEvent * event) {
     update();
 }
 
+void KeyframeHelper::mouseDoubleClickEvent(QMouseEvent * event)
+{
+    if (m_geom != NULL && event->button() == Qt::LeftButton) {
+        // check if we want to move a keyframe
+        int mousePos = qMax((int)(event->x() / m_scale - 5), 0);
+        Mlt::GeometryItem item;
+        if (m_geom->next_key(&item, mousePos) == 0 && item.frame() - mousePos < 10) {
+            // There is already a keyframe close to mouse click
+            emit removeKeyframe(item.frame());
+            return;
+        }
+        // add new keyframe
+        emit addKeyframe((int)(event->x() / m_scale));
+    }
+}
+
+// virtual
+void KeyframeHelper::mouseReleaseEvent(QMouseEvent * event)
+{
+    if (m_movingKeyframe) {
+        m_geom->insert(m_movingItem);
+        m_movingKeyframe = false;
+        emit keyframeMoved(m_position);
+        return;
+    }
+    QWidget::mouseReleaseEvent(event);
+}
 
 // virtual
-void KeyframeHelper::wheelEvent(QWheelEvent * e) {
+void KeyframeHelper::wheelEvent(QWheelEvent * e)
+{
     if (e->delta() < 0) m_position = m_position - 1;
     else m_position = m_position + 1;
     m_position = qMax(0, m_position);
@@ -66,7 +132,8 @@ void KeyframeHelper::wheelEvent(QWheelEvent * e) {
 }
 
 // virtual
-void KeyframeHelper::paintEvent(QPaintEvent *e) {
+void KeyframeHelper::paintEvent(QPaintEvent *e)
+{
     QStylePainter p(this);
     const QRectF clipRect = e->rect();
     p.setClipRect(clipRect);
@@ -74,6 +141,7 @@ void KeyframeHelper::paintEvent(QPaintEvent *e) {
     if (m_geom != NULL) {
         int pos = 0;
         p.setPen(QColor(255, 20, 20));
+        p.setBrush(QColor(255, 20, 20));
         Mlt::GeometryItem item;
         while (true) {
             if (m_geom->next_key(&item, pos) == 1) break;
@@ -84,11 +152,19 @@ void KeyframeHelper::paintEvent(QPaintEvent *e) {
             // draw pointer
             QPolygon pa(3);
             pa.setPoints(3, scaledPos - 4, 0, scaledPos + 4, 0, scaledPos, 4);
-            p.setBrush(QColor(255, 20, 20));
             p.drawPolygon(pa);
             //p.fillRect(QRect(scaledPos - 1, 0, 2, 15), QBrush(QColor(255, 20, 20)));
             pos++;
         }
+        if (m_movingKeyframe) {
+            int scaledPos = (int)(m_movingItem.frame() * m_scale);
+            // draw keyframes
+            p.drawLine(scaledPos, 6, scaledPos, 10);
+            // draw pointer
+            QPolygon pa(3);
+            pa.setPoints(3, scaledPos - 4, 0, scaledPos + 4, 0, scaledPos, 4);
+            p.drawPolygon(pa);
+        }
     }
     p.setPen(palette().dark().color());
     p.drawLine(clipRect.x(), 5, clipRect.right(), 5);
@@ -103,17 +179,20 @@ void KeyframeHelper::paintEvent(QPaintEvent *e) {
 
 }
 
-int KeyframeHelper::value() const {
+int KeyframeHelper::value() const
+{
     return m_position;
 }
 
-void KeyframeHelper::setValue(const int pos) {
+void KeyframeHelper::setValue(const int pos)
+{
     if (pos == m_position || m_geom == NULL) return;
     m_position = pos;
     update();
 }
 
-void KeyframeHelper::setKeyGeometry(Mlt::Geometry *geom, const int length) {
+void KeyframeHelper::setKeyGeometry(Mlt::Geometry *geom, const int length)
+{
     m_geom = geom;
     m_length = length;
     update();