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)
34 setFont(KGlobalSettings::toolBarFont());
38 void KeyframeHelper::mousePressEvent(QMouseEvent * event)
40 m_position = event->x() / m_scale;
41 emit positionChanged(m_position);
46 void KeyframeHelper::mouseMoveEvent(QMouseEvent * event)
48 m_position = event->x() / m_scale;
49 m_position = qMax(0, m_position);
50 m_position = qMin(m_length, m_position);
51 emit positionChanged(m_position);
57 void KeyframeHelper::wheelEvent(QWheelEvent * e)
59 if (e->delta() < 0) m_position = m_position - 1;
60 else m_position = m_position + 1;
61 m_position = qMax(0, m_position);
62 m_position = qMin(m_length, m_position);
63 emit positionChanged(m_position);
66 if (e->modifiers() == Qt::ControlModifier) delta = m_timecode.fps();
67 if (e->delta() < 0) delta = 0 - delta;
68 m_view->moveCursorPos(delta);
73 void KeyframeHelper::paintEvent(QPaintEvent *e)
75 QStylePainter p(this);
76 const QRectF clipRect = e->rect();
77 p.setClipRect(clipRect);
78 m_scale = (double) width() / m_length;
81 p.setPen(QColor(255, 20, 20));
82 Mlt::GeometryItem item;
84 if (m_geom->next_key(&item, pos) == 1) break;
86 int scaledPos = pos * m_scale;
88 p.drawLine(scaledPos, 6, scaledPos, 10);
91 pa.setPoints(3, scaledPos - 4, 0, scaledPos + 4, 0, scaledPos, 4);
92 p.setBrush(QColor(255, 20, 20));
94 //p.fillRect(QRect(scaledPos - 1, 0, 2, 15), QBrush(QColor(255, 20, 20)));
98 p.setPen(palette().dark().color());
99 p.drawLine(clipRect.x(), 5, clipRect.right(), 5);
103 const int cursor = m_position * m_scale;
104 pa.setPoints(3, cursor - 5, 11, cursor + 5, 11, cursor, 6);
105 p.setBrush(palette().dark().color());
111 int KeyframeHelper::value() const
116 void KeyframeHelper::setValue(const int pos)
118 if (pos == m_position || m_geom == NULL) return;
123 void KeyframeHelper::setKeyGeometry(Mlt::Geometry *geom, const int length)
130 #include "keyframehelper.moc"