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 <QMouseEvent>
22 #include <QStylePainter>
26 #include "smallruler.h"
29 SmallRuler::SmallRuler(QWidget *parent)
30 : QWidget(parent), m_scale(1), m_maxval(25) {
33 void SmallRuler::adjustScale(int maximum) {
35 m_scale = (double) width() / (double) maximum;
36 if (m_scale == 0) m_scale = 1;
41 } else if (m_scale > 0.09) {
48 m_cursorPosition = m_cursorFramePosition * m_scale;
53 void SmallRuler::mousePressEvent(QMouseEvent * event) {
54 const int pos = event->x() / m_scale;
55 emit seekRenderer((int) pos);
59 void SmallRuler::mouseMoveEvent(QMouseEvent * event) {
60 const int pos = event->x() / m_scale;
61 emit seekRenderer((int) pos);
64 void SmallRuler::slotNewValue(int value) {
65 m_cursorFramePosition = value;
66 int oldPos = m_cursorPosition;
67 m_cursorPosition = value * m_scale;
68 if (oldPos == m_cursorPosition) return;
70 const int x = qMin(oldPos, m_cursorPosition);
71 const int w = qAbs(oldPos - m_cursorPosition);
72 update(x - offset, 9, w + 2 * offset, 6);
76 void SmallRuler::resizeEvent(QResizeEvent *) {
77 adjustScale(m_maxval);
81 void SmallRuler::paintEvent(QPaintEvent *e) {
88 p.setPen(palette().dark().color());
91 // draw the little marks
92 fend = m_scale * m_small;
93 if (fend > 2) for (f = 0; f < width(); f += fend) {
94 p.drawLine((int)f, 1, (int)f, 3);
98 fend = m_scale * m_medium;
99 if (fend > 2) for (f = 0; f < width(); f += fend) {
100 p.drawLine((int)f, 1, (int)f, 5);
106 pa.setPoints(3, m_cursorPosition - 5, 14, m_cursorPosition + 5, 14, m_cursorPosition/*+0*/, 9);
107 p.setBrush(palette().dark().color());
111 #include "smallruler.moc"