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|
//=========================================================
// MusE
// Linux Music Editor
// $Id: hitscale.cpp,v 1.3.2.1 2007/01/27 14:52:43 spamatica Exp $
// (C) Copyright 1999 Werner Schweer (ws@seh.de)
//=========================================================
#include "hitscale.h"
#include "midieditor.h"
#include <QMouseEvent>
#include <QPainter>
#include "song.h"
//---------------------------------------------------------
// HitScale
//---------------------------------------------------------
HitScale::HitScale(int* r, QWidget* parent, int xs)
: View(parent, xs, 1)
{
raster = r;
pos[0] = song->cpos();
pos[1] = song->lpos();
pos[2] = song->rpos();
button = Qt::NoButton;
setMouseTracking(true);
connect(song, SIGNAL(posChanged(int, unsigned, bool)), this, SLOT(setPos(int, unsigned, bool)));
setFixedHeight(18);
}
//---------------------------------------------------------
// setPos
//---------------------------------------------------------
void HitScale::setPos(int idx, unsigned val, bool)
{
if (val == pos[idx])
return;
unsigned int opos = mapx(pos[idx]); // in order preventing comparison of sigend & unsigned int ??is this OK?
pos[idx] = val;
if (!isVisible())
return;
val = mapx(val);
int x = -9;
int w = 18;
if (opos > val) { //here would be the comparison signed/unsigned
w += opos - val;
x += val;
}
else {
w += val - opos;
x += opos;
}
paint(QRect(x, 0, w, height()));
}
void HitScale::viewMousePressEvent(QMouseEvent* event)
{
button = event->button();
viewMouseMoveEvent(event);
}
void HitScale::viewMouseReleaseEvent(QMouseEvent*)
{
button = Qt::NoButton;
}
void HitScale::viewMouseMoveEvent(QMouseEvent* event)
{
int x = AL::sigmap.raster(event->x(), *raster);
emit timeChanged(x);
int i;
switch (button) {
case Qt::LeftButton:
i = 0;
break;
case Qt::MidButton:
i = 1;
break;
case Qt::RightButton:
i = 2;
break;
default:
return;
}
Pos p(x, true);
song->setPos(i, p);
}
//---------------------------------------------------------
// leaveEvent
//---------------------------------------------------------
void HitScale::leaveEvent(QEvent*)
{
emit timeChanged(-1);
}
//---------------------------------------------------------
// draw
//---------------------------------------------------------
void HitScale::pdraw(QPainter& p, const QRect& r)
{
int x = r.x();
int w = r.width();
// x -= 10;
// w += 20;
if (x < 0)
x = 0;
//---------------------------------------------------
// draw location marker
//---------------------------------------------------
p.setPen(Qt::red);
int xp = mapx(pos[0]);
if (xp >= x && xp < x+w)
p.drawLine(xp, 0, xp, height());
p.setPen(Qt::blue);
xp = mapx(pos[1]);
if (xp >= x && xp < x+w)
p.drawLine(xp, 0, xp, height());
xp = mapx(pos[2]);
if (xp >= x && xp < x+w)
p.drawLine(xp, 0, xp, height());
}
|
