Rewrote the handling of timeline in QGraphicsView. Now we use the built in zoom featu...

[kdenlive] / src / customtrackscene.cpp

diff --git a/src/customtrackscene.cpp b/src/customtrackscene.cpp
new file mode 100644 (file)
index 0000000..e560320
--- /dev/null
+++ b/src/customtrackscene.cpp
@@ -0,0 +1,83 @@
+/***************************************************************************
+ *   Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org)        *
+ *                                                                         *
+ *   This program is free software; you can redistribute it and/or modify  *
+ *   it under the terms of the GNU General Public License as published by  *
+ *   the Free Software Foundation; either version 2 of the License, or     *
+ *   (at your option) any later version.                                   *
+ *                                                                         *
+ *   This program is distributed in the hope that it will be useful,       *
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
+ *   GNU General Public License for more details.                          *
+ *                                                                         *
+ *   You should have received a copy of the GNU General Public License     *
+ *   along with this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA          *
+ ***************************************************************************/
+
+#include <KStandardDirs>
+
+#include "kdenlivedoc.h"
+#include "customtrackscene.h"
+
+CustomTrackScene::CustomTrackScene(KdenliveDoc *doc, QObject *parent)
+        : QGraphicsScene(parent), m_document(doc), m_scale(1.0) {
+    m_transitionPixmap = QPixmap(KStandardDirs::locate("appdata", "transition.png"));
+}
+
+CustomTrackScene::~CustomTrackScene() {
+}
+
+double CustomTrackScene::getSnapPointForPos(double pos, bool doSnap) {
+    double maximumOffset;
+    if (doSnap) {
+        if (m_scale > 3) maximumOffset = 10 / m_scale;
+        else maximumOffset = 6 / m_scale;
+        for (int i = 0; i < m_snapPoints.size(); ++i) {
+            if (qAbs((int)(pos - m_snapPoints.at(i).frames(m_document->fps()))) < maximumOffset) {
+                return m_snapPoints.at(i).frames(m_document->fps());
+            }
+            if (m_snapPoints.at(i).frames(m_document->fps()) > pos) break;
+        }
+    }
+    return GenTime(pos, m_document->fps()).frames(m_document->fps());
+}
+
+void CustomTrackScene::setSnapList(QList <GenTime> snaps) {
+    m_snapPoints = snaps;
+}
+
+GenTime CustomTrackScene::previousSnapPoint(GenTime pos) {
+    for (int i = 0; i < m_snapPoints.size(); ++i) {
+        if (m_snapPoints.at(i) >= pos) {
+            if (i == 0) i = 1;
+            return m_snapPoints.at(i - 1);
+        }
+    }
+    return GenTime();
+}
+
+GenTime CustomTrackScene::nextSnapPoint(GenTime pos) {
+    for (int i = 0; i < m_snapPoints.size(); ++i) {
+        if (m_snapPoints.at(i) > pos) {
+            return m_snapPoints.at(i);
+        }
+    }
+    return pos;
+}
+
+void CustomTrackScene::setScale(double scale) {
+    m_scale = scale;
+}
+
+double CustomTrackScene::scale() {
+    return m_scale;
+}
+
+int CustomTrackScene::tracksCount() {
+    return m_tracksList.count();
+}
+
+#include "customtrackscene.moc"