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 "smallruler.h"
25 #include <QMouseEvent>
26 #include <QStylePainter>
28 SmallRuler::SmallRuler(MonitorManager *manager, QWidget *parent) :
36 m_zoneColor = QColor(133, 255, 143);
37 setMouseTracking(true);
40 void SmallRuler::adjustScale(int maximum)
43 m_scale = (double) width() / (double) maximum;
44 if (m_scale == 0) m_scale = 1;
49 } else if (m_scale > 0.09) {
56 m_cursorPosition = m_cursorFramePosition * m_scale;
60 void SmallRuler::setZone(int start, int end)
63 if (end != -1 && start >= end) {
64 m_zoneEnd = qMin(m_maxval, end + (start - m_zoneStart));
66 } else if (end == -1 && start >= m_zoneEnd) {
67 m_zoneEnd = qMin(m_maxval, m_zoneEnd + (start - m_zoneStart));
69 } else m_zoneStart = start;
72 if (start != -1 && end <= start) {
73 m_zoneStart = qMax(0, start - (m_zoneEnd - end));
75 } else if (start == -1 && end <= m_zoneStart) {
76 m_zoneStart = qMax(0, m_zoneStart - (m_zoneEnd - end));
78 } else m_zoneEnd = end;
83 void SmallRuler::setMarkers(QList < int > list)
89 QPoint SmallRuler::zone()
91 return QPoint(m_zoneStart, m_zoneEnd);
95 void SmallRuler::mousePressEvent(QMouseEvent * event)
97 const int pos = event->x() / m_scale;
98 if (event->button() == Qt::RightButton) {
99 // Right button clicked, move selection zone
100 if (qAbs(pos - m_zoneStart) < qAbs(pos - m_zoneEnd)) m_zoneStart = pos;
101 else m_zoneEnd = pos;
102 emit zoneChanged(QPoint(m_zoneStart, m_zoneEnd));
105 } else emit seekRenderer((int) pos);
109 void SmallRuler::mouseMoveEvent(QMouseEvent * event)
111 const int pos = event->x() / m_scale;
112 if (event->buttons() & Qt::LeftButton) emit seekRenderer((int) pos);
114 if (qAbs((pos - m_zoneStart) * m_scale) < 4) {
115 setToolTip(i18n("Zone start: %1", m_manager->timecode().getTimecodeFromFrames(m_zoneStart)));
116 } else if (qAbs((pos - m_zoneEnd) * m_scale) < 4) {
117 setToolTip(i18n("Zone end: %1", m_manager->timecode().getTimecodeFromFrames(m_zoneEnd)));
118 } else if (pos > m_zoneStart && pos < m_zoneEnd) {
119 setToolTip(i18n("Zone duration: %1", m_manager->timecode().getTimecodeFromFrames(m_zoneEnd - m_zoneStart)));
120 } else setToolTip(i18n("Position: %1", m_manager->timecode().getTimecodeFromFrames(pos)));
124 void SmallRuler::slotNewValue(int value)
126 m_cursorFramePosition = value;
127 int oldPos = m_cursorPosition;
128 m_cursorPosition = value * m_scale;
129 if (oldPos == m_cursorPosition) return;
130 const int offset = 6;
131 const int x = qMin(oldPos, m_cursorPosition);
132 const int w = qAbs(oldPos - m_cursorPosition);
133 update(x - offset, 4, w + 2 * offset, 6);
137 void SmallRuler::resizeEvent(QResizeEvent *)
139 adjustScale(m_maxval);
142 void SmallRuler::updatePixmap()
144 m_pixmap = QPixmap(width(), height());
145 m_pixmap.fill(palette().window().color());
146 QPainter p(&m_pixmap);
149 const int zoneStart = (int)(m_zoneStart * m_scale);
150 const int zoneEnd = (int)(m_zoneEnd * m_scale);
151 p.fillRect(zoneStart, height() / 2 - 1, zoneEnd - zoneStart, height() / 2, m_zoneColor);
154 if (!m_markers.isEmpty()) {
156 for (int i = 0; i < m_markers.count(); i++) {
157 p.drawLine(m_markers.at(i) * m_scale, 0, m_markers.at(i) * m_scale, 9);
160 p.setPen(palette().dark().color());
161 // draw the little marks
162 fend = m_scale * m_small;
163 if (fend > 2) for (f = 0; f < width(); f += fend) {
164 p.drawLine((int)f, 0, (int)f, 3);
168 fend = m_scale * m_medium;
169 if (fend > 2) for (f = 0; f < width(); f += fend) {
170 p.drawLine((int)f, 0, (int)f, 6);
177 void SmallRuler::paintEvent(QPaintEvent *e)
183 p.drawPixmap(QPointF(), m_pixmap);
187 pa.setPoints(3, m_cursorPosition - 5, 10, m_cursorPosition + 5, 10, m_cursorPosition/*+0*/, 5);
188 p.setBrush(palette().dark().color());
193 #include "smallruler.moc"