159 lines
3.8 KiB
C++
159 lines
3.8 KiB
C++
/*
|
|
* Olive Community Edition - Non-Linear Video Editor
|
|
* Copyright (C) 2025 Olive CE 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 "nodeviewminimap.h"
|
|
|
|
#include <QMouseEvent>
|
|
|
|
namespace olive
|
|
{
|
|
|
|
#define super QGraphicsView
|
|
|
|
NodeViewMiniMap::NodeViewMiniMap(NodeViewScene *scene, QWidget *parent)
|
|
: super(parent)
|
|
, resizing_(false)
|
|
{
|
|
connect(scene, &QGraphicsScene::sceneRectChanged, this,
|
|
&NodeViewMiniMap::SceneChanged);
|
|
setScene(scene);
|
|
|
|
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
|
|
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
|
|
setViewportUpdateMode(FullViewportUpdate);
|
|
setFrameShape(QFrame::Panel);
|
|
setFrameShadow(QFrame::Plain);
|
|
setMouseTracking(true);
|
|
|
|
QMetaObject::invokeMethod(this, &NodeViewMiniMap::SetDefaultSize,
|
|
Qt::QueuedConnection);
|
|
|
|
resize_triangle_sz_ = fontMetrics().height() / 2;
|
|
}
|
|
|
|
void NodeViewMiniMap::SetViewportRect(const QPolygonF &rect)
|
|
{
|
|
viewport_rect_ = rect;
|
|
|
|
viewport()->update();
|
|
}
|
|
|
|
void NodeViewMiniMap::drawForeground(QPainter *painter, const QRectF &rect)
|
|
{
|
|
super::drawForeground(painter, rect);
|
|
|
|
QColor viewport_color = palette().text().color();
|
|
|
|
// Draw resize triangle
|
|
painter->save();
|
|
painter->resetTransform();
|
|
|
|
QPointF triangle[3] = { QPointF(0, 0), QPointF(resize_triangle_sz_, 0),
|
|
QPointF(0, resize_triangle_sz_) };
|
|
painter->setBrush(viewport_color);
|
|
painter->setPen(viewport_color);
|
|
painter->drawPolygon(triangle, 3);
|
|
|
|
painter->restore();
|
|
|
|
// Draw viewport rectangle
|
|
viewport_color.setAlphaF(0.25);
|
|
painter->setBrush(viewport_color);
|
|
|
|
painter->drawPolygon(viewport_rect_);
|
|
}
|
|
|
|
void NodeViewMiniMap::resizeEvent(QResizeEvent *event)
|
|
{
|
|
super::resizeEvent(event);
|
|
|
|
emit Resized();
|
|
|
|
SceneChanged(sceneRect());
|
|
}
|
|
|
|
void NodeViewMiniMap::mousePressEvent(QMouseEvent *event)
|
|
{
|
|
if (event->button() == Qt::LeftButton) {
|
|
if (MouseInsideResizeTriangle(event)) {
|
|
// Resizing!
|
|
resizing_ = true;
|
|
resize_anchor_ = QCursor::pos();
|
|
} else {
|
|
EmitMoveSignal(event);
|
|
}
|
|
}
|
|
}
|
|
|
|
void NodeViewMiniMap::mouseMoveEvent(QMouseEvent *event)
|
|
{
|
|
if (event->buttons() & Qt::LeftButton) {
|
|
if (resizing_) {
|
|
QPointF movement = QCursor::pos() - resize_anchor_;
|
|
resize(QSize(width() - movement.x(), height() - movement.y()));
|
|
resize_anchor_ = QCursor::pos();
|
|
} else {
|
|
EmitMoveSignal(event);
|
|
}
|
|
} else {
|
|
if (MouseInsideResizeTriangle(event)) {
|
|
setCursor(Qt::SizeFDiagCursor);
|
|
} else {
|
|
unsetCursor();
|
|
}
|
|
}
|
|
}
|
|
|
|
void NodeViewMiniMap::mouseReleaseEvent(QMouseEvent *event)
|
|
{
|
|
resizing_ = false;
|
|
}
|
|
|
|
void NodeViewMiniMap::SceneChanged(const QRectF &bounding)
|
|
{
|
|
double x_scale = double(this->width()) / bounding.width();
|
|
double y_scale = double(this->height()) / bounding.height();
|
|
|
|
double min_scale = qMin(x_scale, y_scale);
|
|
|
|
QTransform transform;
|
|
transform.scale(min_scale, min_scale);
|
|
|
|
setTransform(transform);
|
|
}
|
|
|
|
void NodeViewMiniMap::SetDefaultSize()
|
|
{
|
|
if (parentWidget()) {
|
|
resize(parentWidget()->width() / 4, parentWidget()->height() / 4);
|
|
}
|
|
}
|
|
|
|
bool NodeViewMiniMap::MouseInsideResizeTriangle(QMouseEvent *event)
|
|
{
|
|
return event->pos().x() <= resize_triangle_sz_ &&
|
|
event->pos().y() <= resize_triangle_sz_;
|
|
}
|
|
|
|
void NodeViewMiniMap::EmitMoveSignal(QMouseEvent *event)
|
|
{
|
|
emit MoveToScenePoint(mapToScene(event->pos()));
|
|
}
|
|
|
|
}
|