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oak-editor/app/node/gizmo/point.cpp
T

109 lines
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/***
Olive - Non-Linear Video Editor
Copyright (C) 2022 Olive Team
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 "point.h"
#include <QApplication>
namespace olive {
PointGizmo::PointGizmo(const Shape &shape, bool smaller, QObject *parent) :
DraggableGizmo{parent},
shape_(shape),
smaller_(smaller)
{
}
PointGizmo::PointGizmo(const Shape &shape, QObject *parent) :
PointGizmo(shape, false, parent)
{
}
PointGizmo::PointGizmo(QObject *parent) :
PointGizmo(kSquare, parent)
{
}
void PointGizmo::Draw(QPainter *p) const
{
QRectF rect = GetDrawingRect(p->transform(), GetStandardRadius());
if (shape_ != kAnchorPoint) {
p->setPen(Qt::NoPen);
p->setBrush(Qt::white);
}
switch (shape_) {
case kSquare:
p->drawRect(rect);
break;
case kCircle:
p->drawEllipse(rect);
break;
case kAnchorPoint:
p->setPen(QPen(Qt::white, 0));
p->setBrush(Qt::NoBrush);
p->drawEllipse(rect);
p->drawLines({QPointF(rect.left(), rect.center().y()),
QPointF(rect.right(), rect.center().y()),
QPointF(rect.center().x(), rect.top()),
QPointF(rect.center().x(), rect.bottom())});
break;
}
}
QRectF PointGizmo::GetClickingRect(const QTransform &t) const
{
return GetDrawingRect(t, GetStandardRadius());
}
double PointGizmo::GetStandardRadius()
{
return QFontMetrics(qApp->font()).height() * 0.25;
}
QRectF PointGizmo::GetDrawingRect(const QTransform &transform, double radius) const
{
QRectF r(0,0, radius, radius);
r = transform.inverted().mapRect(r);
double width = r.width();
double height = r.height();
if (shape_ == kAnchorPoint) {
width *= 2;
height *= 2;
}
if (smaller_) {
width *= 0.5;
height *= 0.5;
}
return QRectF(point_.x() - width,
point_.y() - height,
2*width,
2*height);
}
}