void OnMonitorRectItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
{
Q_UNUSED(widget)
Q_UNUSED(option)
painter->setPen(pen());
//painter->setClipRect(option->rect);
const QRectF r = rect();
painter->drawRect(r);
QRectF handle = painter->worldTransform().inverted().mapRect(QRectF(0, 0, 6, 6));
if (isEnabled()) {
handle.moveTopLeft(r.topLeft());
painter->fillRect(handle, QColor(Qt::yellow));
handle.moveTopRight(r.topRight());
painter->fillRect(handle, QColor(Qt::yellow));
handle.moveBottomLeft(r.bottomLeft());
painter->fillRect(handle, QColor(Qt::yellow));
handle.moveBottomRight(r.bottomRight());
painter->fillRect(handle, QColor(Qt::yellow));
}
// Draw cross at center
QPointF center = r.center();
painter->drawLine(center + QPointF(-handle.width(), 0), center + QPointF(handle.width(), 0));
painter->drawLine(center + QPointF(0, handle.height()), center + QPointF(0, -handle.height()));
}
void TransformableGraphicsGuide::update()
{
if (isVisible())
{
FigureEditor::EditMode mode = editor->mode();
bool scaleMode( mode == FigureEditor::Scale );
topRightRect.setVisible(scaleMode);
topLeftRect.setVisible(scaleMode);
bottomRightRect.setVisible(scaleMode);
bottomLeftRect.setVisible(scaleMode);
if (scaleMode)
{
QPointF cen;
QPolygonF poly;
if (editor->hasSelection())
{
QGraphicsPolygonItem* item = editor->selection();
if (item == 0)
return;
cen = mapFromScene(editor->selectionTransformPos());
poly = mapFromScene(item->polygon());
}
else
{
QGraphicsPolygonItem* item = dynamic_cast<QGraphicsPolygonItem*>(parentItem());
cen = editor->triangleTransformPos();
poly = item->polygon();
}
QRectF f( poly.boundingRect() );
qreal xmax = qMax(qAbs(f.left() - cen.x()), qAbs(f.right() - cen.x()));
qreal ymax = qMax(qAbs(f.top() - cen.y()), qAbs(f.bottom() - cen.y()));
QPointF pmax(xmax, ymax);
QRectF r(pmax, -pmax);
r.moveCenter(cen);
outerRect = r;
QRectF l = parentItem()->mapRectFromScene(QRectF(QPointF(0.0, 0.0), QSizeF(10, 10)));
QPen pen( editor->guideColor() );
l.moveBottomLeft(r.topRight());
topRightRect.setPen(pen);
topRightRect.setRect(l);
l.moveBottomRight(r.topLeft());
topLeftRect.setPen(pen);
topLeftRect.setRect(l);
l.moveTopLeft(r.bottomRight());
bottomRightRect.setPen(pen);
bottomRightRect.setRect(l);
l.moveTopRight(r.bottomLeft());
bottomLeftRect.setPen(pen);
bottomLeftRect.setRect(l);
}
else if (mode == FigureEditor::Rotate)
{
QGraphicsPolygonItem* item;
QPointF cen;
QPolygonF poly;
if (editor->hasSelection())
{
item = editor->selection();
if (item == 0)
return;
cen = mapFromScene(editor->selectionTransformPos());
poly = mapFromScene(item->polygon());
}
else
{
item = dynamic_cast<QGraphicsPolygonItem*>(parentItem());
poly = item->polygon();
cen = editor->triangleTransformPos();
}
qreal rmax = 0.0;
foreach (QPointF p, poly)
{
QLineF l(p, cen);
qreal len(l.length());
if (len > rmax)
rmax = len;
}
qreal height = rmax * 2.0;
outerRect = QRectF(cen.x() - rmax, cen.y() - rmax, height, height);
}
QRectF NetToolBox::expandedGeometry() const
{
QRectF containerGeometry = m_toolContainer->boundingRect();
containerGeometry.moveBottomLeft(geometry().bottomLeft());
return containerGeometry;
}