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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "parallelitem.h"
#include "scxmldocument.h"
#include "scxmltagutils.h"
#include <QPainter>
using namespace ScxmlEditor::PluginInterface;
ParallelItem::ParallelItem(const QPointF &pos, BaseItem *parent)
: StateItem(pos, parent)
{
m_pixmap = QPixmap(":/scxmleditor/images/parallel_icon.png");
updatePolygon();
}
void ParallelItem::updatePolygon()
{
StateItem::updatePolygon();
int cap = m_titleRect.height() * 0.2;
m_pixmapRect = m_titleRect.adjusted(m_titleRect.width() - m_titleRect.height(), cap, -cap, -cap).toRect();
}
void ParallelItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget)
{
StateItem::paint(painter, option, widget);
painter->save();
painter->setRenderHint(QPainter::Antialiasing, true);
painter->setOpacity(getOpacity());
painter->drawPixmap(m_pixmapRect, m_pixmap);
painter->restore();
}
void ParallelItem::doLayout(int d)
{
if (depth() != d)
return;
// 1. Find children items
QVector<StateItem*> children;
const QList<QGraphicsItem *> items = childItems();
for (QGraphicsItem *it : items) {
if (it->type() >= StateType) {
auto itt = qgraphicsitem_cast<StateItem*>(it);
if (itt)
children << itt;
}
}
// 2. Adjust sizes
for (StateItem *itt : std::as_const(children))
itt->shrink();
qreal maxw = 0;
for (StateItem *itt : std::as_const(children)) {
QRectF rr = itt->boundingRect();
maxw = qMax(rr.width(), maxw);
}
for (StateItem *itt : std::as_const(children)) {
QRectF rr = itt->boundingRect();
if (!qFuzzyCompare(rr.width(), maxw))
rr.setWidth(maxw);
itt->setItemBoundingRect(rr);
}
// 3. Relocate children-states
// a) sort list
QVector<StateItem*> sortedList;
while (!children.isEmpty()) {
qreal minTop = children.first()->boundingRect().top();
int minTopIndex = 0;
for (int i = 1; i < children.count(); ++i) {
qreal top = children[i]->boundingRect().top();
if (top < minTop) {
minTop = top;
minTopIndex = i;
}
}
sortedList << children.takeAt(minTopIndex);
}
// b) relocate items
for (int i = 1; i < sortedList.count(); ++i) {
QRectF br1 = sortedList[i - 1]->sceneBoundingRect();
QRectF br2 = sortedList[i]->sceneBoundingRect();
sortedList[i]->moveStateBy(br1.left() - br2.left(), br1.bottom() + 10 - br2.top());
}
// 4. Shrink parallel-state
shrink();
}
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