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/* TIATracker, (c) 2016 Andre "Kylearan" Wichmann.
* Website: https://bitbucket.org/kylearan/tiatracker
* Email: andre.wichmann@gmx.de
* See the file "license.txt" for information on usage and redistribution
* of this file.
*/
#include "timeline.h"
#include <QPainter>
#include <QString>
#include <QFont>
#include "mainwindow.h"
#include "track/sequence.h"
#include "track/sequenceentry.h"
#include <QColor>
#include <QMouseEvent>
#include <QHelpEvent>
#include <QToolTip>
Timeline::Timeline(QWidget *parent) : QWidget(parent)
{
widgetWidth = 2*channelMargin + 2*channelWidth + channelGap;
setFixedWidth(widgetWidth);
}
/*************************************************************************/
void Timeline::registerTrack(Track::Track *newTrack) {
pTrack = newTrack;
}
/*************************************************************************/
void Timeline::registerPatternMenu(QMenu *newPatternMenu) {
pPatternMenu = newPatternMenu;
}
/*************************************************************************/
QSize Timeline::sizeHint() const {
return QSize(widgetWidth, minHeight);
}
/*************************************************************************/
void Timeline::editPosChanged(int newPos) {
editPos = newPos;
update();
}
/*************************************************************************/
void Timeline::playerPosChanged(int pos1, int pos2) {
playerPos[0] = pos1;
playerPos[1] = pos2;
update();
}
/*************************************************************************/
double Timeline::calcRowHeight()
{
int lastEntry0 = pTrack->channelSequences[0].sequence.size() - 1;
int lastPattern0 = pTrack->channelSequences[0].sequence[lastEntry0].patternIndex;
int channelLength0 = pTrack->channelSequences[0].sequence[lastEntry0].firstNoteNumber
+ pTrack->patterns[lastPattern0].notes.size();
int lastEntry1 = pTrack->channelSequences[1].sequence.size() - 1;
int lastPattern1 = pTrack->channelSequences[1].sequence[lastEntry1].patternIndex;
int channelLength1 = pTrack->channelSequences[1].sequence[lastEntry1].firstNoteNumber
+ pTrack->patterns[lastPattern1].notes.size();
int maxLength = max(channelLength0, channelLength1);
double rowHeight = (height() - 2*channelMargin)/double(maxLength);
return rowHeight;
}
/*************************************************************************/
void Timeline::paintEvent(QPaintEvent *) {
QPainter painter(this);
double rowHeight = calcRowHeight();
// Paint patterns
painter.fillRect(0, 0, width(), height(), MainWindow::dark);
int xPos = channelMargin;
for (int channel = 0; channel < 2; ++channel) {
Track::Sequence *sequence = &(pTrack->channelSequences[channel]);
for (int iEntry = 0; iEntry < sequence->sequence.size(); ++iEntry) {
int patternTop = channelMargin + int(rowHeight*sequence->sequence[iEntry].firstNoteNumber + 0.5);
int iPattern = sequence->sequence[iEntry].patternIndex;
int patternHeight = int(rowHeight*pTrack->patterns[iPattern].notes.size() + 0.5);
QColor col;
if (iEntry%2 == 0) {
col = MainWindow::contentDark;
} else {
col = MainWindow::contentLight;
}
painter.fillRect(xPos, patternTop, channelWidth, patternHeight + 1, col);
}
xPos += channelWidth + channelGap;
}
// Draw edit position
painter.fillRect(0, channelMargin + editPos*rowHeight + rowHeight/2, width(), 2, MainWindow::blue);
// Draw player positions
painter.fillRect(0, channelMargin + playerPos[0]*rowHeight + rowHeight/2, width()/2, 2, MainWindow::orange);
painter.fillRect(width()/2, channelMargin + playerPos[1]*rowHeight + rowHeight/2, width()/2, 2, MainWindow::orange);
}
/*************************************************************************/
void Timeline::mousePressEvent(QMouseEvent *event) {
if (event->y() >= channelMargin && event->y() < height() - channelMargin) {
int channel = event->x() < width()/2 ? 0 : 1;
double rowHeight = calcRowHeight();
int newEditPos = int((event->y() - channelMargin)/rowHeight + 0.5);
emit changeEditPos(channel, newEditPos);
}
}
/*************************************************************************/
void Timeline::mouseMoveEvent(QMouseEvent *event) {
mousePressEvent(event);
}
/*************************************************************************/
void Timeline::contextMenuEvent(QContextMenuEvent *event) {
if (event->y() >= channelMargin && event->y() < height() - channelMargin) {
double rowHeight = calcRowHeight();
int row = int((event->y() - channelMargin)/rowHeight + 0.5);
int channel = event->x() < channelMargin + channelWidth ? 0 : 1;
if (row < pTrack->getChannelNumRows(channel)) {
emit channelContextEvent(channel, row);
pPatternMenu->exec(event->globalPos());
}
}
}
/*************************************************************************/
bool Timeline::event(QEvent *event) {
if (event->type() == QEvent::ToolTip) {
QHelpEvent *helpEvent = static_cast<QHelpEvent *>(event);
if (helpEvent->y() >= channelMargin && helpEvent->y() < height() - channelMargin) {
int channel = helpEvent->x() < width()/2 ? 0 : 1;
double rowHeight = calcRowHeight();
int rowPos = int((helpEvent->y() - channelMargin)/rowHeight + 0.5);
if (pTrack->getChannelNumRows(channel) > rowPos) {
int patternIndex = pTrack->getPatternIndex(channel, rowPos);
QString patternName = pTrack->patterns[patternIndex].name;
QToolTip::showText(helpEvent->globalPos(), patternName);
}
} else {
QToolTip::hideText();
event->ignore();
}
return true;
}
return QWidget::event(event);
}
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