New improved widget for position parameter in effects (for example with fade effects)

[kdenlive] / src / positionedit.cpp

diff --git a/src/positionedit.cpp b/src/positionedit.cpp
new file mode 100644 (file)
index 0000000..88ccd66
--- /dev/null
+++ b/src/positionedit.cpp
@@ -0,0 +1,65 @@
+/***************************************************************************
+                          geomeytrval.cpp  -  description
+                             -------------------
+    begin                : 03 Aug 2008
+    copyright            : (C) 2008 by Marco Gittler
+    email                : g.marco@freenet.de
+ ***************************************************************************/
+
+/***************************************************************************
+ *                                                                         *
+ *   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.                                   *
+ *                                                                         *
+ ***************************************************************************/
+
+#include "positionedit.h"
+#include "kdenlivesettings.h"
+
+#include <KDebug>
+
+PositionEdit::PositionEdit(const QString name, int pos, int min, int max, const Timecode tc, QWidget* parent) :
+        QWidget(parent),
+        m_tc(tc)
+{
+    m_ui.setupUi(this);
+    m_ui.label->setText(name);
+    m_ui.horizontalSlider->setRange(min, max);
+    connect(m_ui.horizontalSlider, SIGNAL(valueChanged(int)), this, SLOT(slotUpdateTimecode()));
+    connect(m_ui.krestrictedline, SIGNAL(editingFinished()), this, SLOT(slotUpdatePosition()));
+    m_ui.horizontalSlider->setValue(pos);
+    m_ui.krestrictedline->setText(m_tc.getTimecodeFromFrames(pos));
+}
+
+int PositionEdit::getPosition() const
+{
+    return m_ui.horizontalSlider->value();
+}
+
+void PositionEdit::setPosition(int pos)
+{
+    m_ui.horizontalSlider->setValue(pos);
+    m_ui.krestrictedline->setText(m_tc.getTimecodeFromFrames(pos));
+}
+
+void PositionEdit::slotUpdateTimecode()
+{
+    m_ui.krestrictedline->setText(m_tc.getTimecodeFromFrames(m_ui.horizontalSlider->value()));
+    emit parameterChanged();
+}
+
+void PositionEdit::slotUpdatePosition()
+{
+    m_ui.horizontalSlider->blockSignals(true);
+    int pos = m_tc.getFrameCount(m_ui.krestrictedline->text(), KdenliveSettings::project_fps());
+    m_ui.horizontalSlider->setValue(pos);
+    if (pos != m_ui.horizontalSlider->value()) {
+        // Value out of range
+        m_ui.krestrictedline->setText(m_tc.getTimecodeFromFrames(m_ui.horizontalSlider->value()));
+    }
+    m_ui.horizontalSlider->blockSignals(false);
+    emit parameterChanged();
+}
+