1 /***************************************************************************
2 * Copyright (C) 2007 by Jean-Baptiste Mardelle (jb@kdenlive.org) *
4 * This program is free software; you can redistribute it and/or modify *
5 * it under the terms of the GNU General Public License as published by *
6 * the Free Software Foundation; either version 2 of the License, or *
7 * (at your option) any later version. *
9 * This program is distributed in the hope that it will be useful, *
10 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
12 * GNU General Public License for more details. *
14 * You should have received a copy of the GNU General Public License *
15 * along with this program; if not, write to the *
16 * Free Software Foundation, Inc., *
17 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA *
18 ***************************************************************************/
21 #include "keyframehelper.h"
22 #include "definitions.h"
25 #include <KGlobalSettings>
27 #include <QMouseEvent>
28 #include <QStylePainter>
31 KeyframeHelper::KeyframeHelper(QWidget *parent)
32 : QWidget(parent), m_geom(NULL), m_position(0), m_scale(0) {
33 setFont(KGlobalSettings::toolBarFont());
37 void KeyframeHelper::mousePressEvent(QMouseEvent * event) {
38 m_position = event->x() / m_scale;
39 emit positionChanged(m_position);
44 void KeyframeHelper::mouseMoveEvent(QMouseEvent * event) {
45 m_position = event->x() / m_scale;
46 m_position = qMax(0, m_position);
47 m_position = qMin(m_length, m_position);
48 emit positionChanged(m_position);
54 void KeyframeHelper::wheelEvent(QWheelEvent * e) {
55 if (e->delta() < 0) m_position = m_position - 1;
56 else m_position = m_position + 1;
57 m_position = qMax(0, m_position);
58 m_position = qMin(m_length, m_position);
59 emit positionChanged(m_position);
62 if (e->modifiers() == Qt::ControlModifier) delta = m_timecode.fps();
63 if (e->delta() < 0) delta = 0 - delta;
64 m_view->moveCursorPos(delta);
69 void KeyframeHelper::paintEvent(QPaintEvent *e) {
70 QStylePainter p(this);
71 const QRectF clipRect = e->rect();
72 p.setClipRect(clipRect);
73 m_scale = (double) width() / m_length;
76 p.setPen(QColor(255, 20, 20));
77 Mlt::GeometryItem item;
79 if (m_geom->next_key(&item, pos) == 1) break;
81 int scaledPos = pos * m_scale;
83 p.drawLine(scaledPos, 6, scaledPos, 10);
86 pa.setPoints(3, scaledPos - 4, 0, scaledPos + 4, 0, scaledPos, 4);
87 p.setBrush(QColor(255, 20, 20));
89 //p.fillRect(QRect(scaledPos - 1, 0, 2, 15), QBrush(QColor(255, 20, 20)));
93 p.setPen(palette().dark().color());
94 p.drawLine(clipRect.x(), 5, clipRect.right(), 5);
98 const int cursor = m_position * m_scale;
99 pa.setPoints(3, cursor - 5, 11, cursor + 5, 11, cursor, 6);
100 p.setBrush(palette().dark().color());
106 int KeyframeHelper::value() const {
110 void KeyframeHelper::setValue(const int pos) {
111 if (pos == m_position || m_geom == NULL) return;
116 void KeyframeHelper::setKeyGeometry(Mlt::Geometry *geom, const int length) {
122 #include "keyframehelper.moc"