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/*
graphicsview.cpp
This file is part of GammaRay, the Qt application inspection and manipulation tool.
SPDX-FileCopyrightText: 2010 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
Author: Volker Krause <volker.krause@kdab.com>
SPDX-License-Identifier: GPL-2.0-or-later
Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
#include "graphicsview.h"
#include "sceneinspectorinterface.h"
#include <QGraphicsItem>
#include <QKeyEvent>
using namespace GammaRay;
GraphicsView::GraphicsView(QWidget *parent)
: QGraphicsView(parent)
, m_currentItem(nullptr)
{
setMouseTracking(true);
}
void GraphicsView::showItem(QGraphicsItem *item)
{
m_currentItem = item;
if (!item)
return;
fitInView(item, Qt::KeepAspectRatio);
scale(0.8f, 0.8f);
emit transformChanged();
}
void GraphicsView::keyPressEvent(QKeyEvent *event)
{
if (event->modifiers() == Qt::CTRL) {
switch (event->key()) {
case Qt::Key_Plus:
scale(1.2, 1.2);
emit transformChanged();
event->accept();
return;
case Qt::Key_Minus:
scale(0.8, 0.8);
emit transformChanged();
event->accept();
return;
case Qt::Key_Left:
rotate(-5);
emit transformChanged();
event->accept();
break;
case Qt::Key_Right:
rotate(5);
emit transformChanged();
event->accept();
break;
}
}
QGraphicsView::keyPressEvent(event);
}
void GraphicsView::mouseMoveEvent(QMouseEvent *event)
{
emit sceneCoordinatesChanged(mapToScene(event->pos()));
if (m_currentItem)
emit itemCoordinatesChanged(m_currentItem->mapFromScene(mapToScene(event->pos())));
QGraphicsView::mouseMoveEvent(event);
}
void GraphicsView::drawForeground(QPainter *painter, const QRectF &rect)
{
QGraphicsView::drawForeground(painter, rect);
if (m_currentItem)
SceneInspectorInterface::paintItemDecoration(m_currentItem, transform(), painter);
}
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