本文整理汇总了C++中Segment::canvasPos方法的典型用法代码示例。如果您正苦于以下问题：C++ Segment::canvasPos方法的具体用法？C++ Segment::canvasPos怎么用？C++ Segment::canvasPos使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Segment的用法示例。
在下文中一共展示了Segment::canvasPos方法的1个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: move
void PositionCursor::move(int tick)
{
QRectF r(bbox());
//
// set mark height for whole system
//
if (_type == CursorType::LOOP_OUT)
tick --;
Score* score = _sv->score();
Measure* measure = score->tick2measureMM(tick);
if (measure == 0)
return;
qreal x;
int offset = 0;
Segment* s;
for (s = measure->first(Segment::Type::ChordRest); s;) {
int t1 = s->tick();
int x1 = s->canvasPos().x();
qreal x2;
int t2;
Segment* ns = s->next(Segment::Type::ChordRest);
if (ns) {
t2 = ns->tick();
x2 = ns->canvasPos().x();
}
else {
t2 = measure->endTick();
x2 = measure->canvasPos().x() + measure->width();
}
t1 += offset;
t2 += offset;
if (tick >= t1 && tick < t2) {
int dt = t2 - t1;
qreal dx = x2 - x1;
x = x1 + dx * (tick-t1) / dt;
break;
}
s = ns;
}
if (s == 0)
return;
System* system = measure->system();
if (system == 0)
return;
double y = system->staffYpage(0) + system->page()->pos().y();
double _spatium = score->spatium();
qreal mag = _spatium / (MScore::DPI * SPATIUM20);
double w = (_spatium * 2.0 + score->scoreFont()->width(SymId::noteheadBlack, mag))/3;
double h = 6 * _spatium;
//
// set cursor height for whole system
//
double y2 = 0.0;
for (int i = 0; i < score->nstaves(); ++i) {
SysStaff* ss = system->staff(i);
if (!ss->show() || !score->staff(i)->show())
continue;
y2 = ss->y() + ss->bbox().height();
}
h += y2;
y -= 3 * _spatium;
if (_type == CursorType::LOOP_IN) {
x = x - _spatium + w/1.5;
}
else {
x = x - _spatium * .5;
}
_tick = tick;
_rect = QRectF(x, y, w, h);
_sv->update(_sv->matrix().mapRect(r | bbox()).toRect().adjusted(-1,-1,1,1));
}