/**************************************************************************
Copyright (C) 2015 Arnaud Champenois arthelion@free.fr
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 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
**************************************************************************/
#include "timeline.h"
#include <QPainter>
#include <QMouseEvent>
TimeLine::TimeLine(QWidget *parent) : QWidget(parent)
{
}
void TimeLine::setMainWindow(MainWindow *mainWindowPt)
{
mMainWindowPt = mainWindowPt;
}
void TimeLine::mousePressEvent( QMouseEvent * event )
{
if(event->button() != Qt::LeftButton)
return;
int64_t timeMs = (mMainWindowPt->getLength()*event->x())/width();
mMainWindowPt->selectSegmentFromTime(timeMs);
}
void TimeLine::paintEvent(QPaintEvent *)
{
QPainter p(this);
p.fillRect(0,0,width(),height(),QColor(255,255,255));
if(mMainWindowPt == nullptr)
return;
QList<VideoSegment> segList = mMainWindowPt->getSegments();
int start,end;
for(VideoSegment&seg : segList) {
getSegmentBounds(seg,start,end);
if(seg.mFileName.isEmpty())
p.fillRect(start,0,end-start,height()-1,QColor(0,0,255));
else
p.fillRect(start,0,end-start,height()-1,QColor(0,120,0));
QColor color(0,175,0);
p.fillRect(start,0,1,height(),color);
p.fillRect(end,0,1,height(),color);
}
segList = mMainWindowPt->getSelectedSegments();
p.setPen(QColor(255,0,0));
p.setBrush(QColor(255,0,0,50));
for(VideoSegment&seg : segList) {
getSegmentBounds(seg,start,end);
p.drawRect(QRect(start,0,end-start,height()-1));
}
// position courante du curseur
if(!mMainWindowPt->IsClosed()) {
double posRatio = mMainWindowPt->getPositionRatio();
int pixPos = (int)floor(double(width())*posRatio);
p.fillRect(pixPos,0,2,height()-1,QColor(255,128,128));
}
}
void TimeLine::getSegmentBounds(const VideoSegment &seg, int &start, int &end)
{
double length = mMainWindowPt->getLength();
double startRatio = double(seg.mBegin.mMsPos)/length;
double endRatio = double(seg.mEnd.mMsPos)/length;
start = (int)floor(double(width())*startRatio);
end = (int)floor(double(width())*endRatio);
if(start==end) end++;
}