void WGraphicsPolygonItem::paint(WPainter* painter)
{
WPainterProxy proxy(painter);
painter->setPen(data()->pen);
painter->setBrush(data()->brush);
painter->drawPolygon(data()->polygon); //绘制多边形
if (isSelected()) //多边形被选中
{
painter->setPen(CP_PEN);
painter->setBrush(CP_BRUSH);
//绘制控制点
for (unsigned i=0; i<_cp.size(); ++i)
{
painter->drawEllipse(WWorldRectF(_cp[i].x() - CP_RADIUS, _cp[i].y() - CP_RADIUS, CP_RADIUS * 2, CP_RADIUS * 2));
painter->drawEllipse(WWorldRectF(data()->polygon[i].x() - CP_RADIUS, data()->polygon[i].y() - CP_RADIUS, CP_RADIUS * 2, CP_RADIUS * 2));
}
if (_dragging) //多边形被拖动，绘制拖动后的多边形
{
WPen dragPen = data()->pen;
WBrush dragBrush = data()->brush;
dragPen.setColor(dragPen.color().lighter(2.0));
dragBrush.setColor(dragBrush.color().lighter(2.0));
painter->setPen(dragPen);
painter->setBrush(dragBrush);
painter->drawPolygon(draggedPolygon(data()->polygon, scene()->dragStartPos(), scene()->attachedPoint(scene()->mousePos()), _select_flag));
}
}
}
QPen transform(const WPen& pen)
{
return QPen(QBrush(transform(pen.color())), pen.width(), static_cast<Qt::PenStyle>(pen.style()));
}
void WGraphicsRectItem::paint(WPainter* painter)
{
WPainterProxy proxy(painter);
painter->setRenderHint(Ws::Antialiasing, false);
painter->setRenderHint(Ws::TextAntialiasing, false);
painter->setWorldTransform(getRotateMatrix(), true); //设置旋转矩阵
painter->setBrush(brush());
painter->setPen(pen());
painter->drawRect(data()->rect); //绘制矩形
if (isSelected()) //矩形被选中，绘制所有的控制点
{
painter->drawLine(WWorldLineF(_rotate_pt, WWorldPointF(_rotate_pt.x(), data()->rect.top())));
painter->setPen(CP_PEN);
painter->setBrush(CP_BRUSH);
for (unsigned i=0; i<array_size(_cp); ++i)
{
if (i & 1)
{
painter->drawRect(WWorldRectF(_cp[i].x() - CP_RADIUS, _cp[i].y() - CP_RADIUS, CP_RADIUS * 2, CP_RADIUS * 2));
}
else
{
painter->drawEllipse(WWorldRectF(_cp[i].x() - CP_RADIUS, _cp[i].y() - CP_RADIUS, CP_RADIUS * 2, CP_RADIUS * 2));
}
}
painter->setBrush(ROTATE_BRUSH);
painter->drawEllipse(WWorldRectF(_rotate_pt.x() - CP_RADIUS, _rotate_pt.y() - CP_RADIUS, CP_RADIUS * 2, CP_RADIUS * 2));
}
if (_dragging) //矩形在拖动，绘制正在拖动的矩形
{
WWorldPointF pos = scene()->attachedPoint(scene()->mousePos());
WPen dragPen = data()->pen;
WBrush dragBrush = data()->brush;
dragPen.setColor(dragPen.color().lighter(2.0));
dragBrush.setColor(dragBrush.color().lighter(2.0));
painter->setPen(dragPen);
painter->setBrush(dragBrush);
if (_select_flag != SF_ROTATE)
{
if (_select_flag != SF_CONTENT || isMovable())
{
WWorldPointF offset = pos - scene()->dragStartPos();
const int (&f)[4] = ADJUST_TABLE[bit(_select_flag)];
painter->drawRect(data()->rect.adjusted(offset.x() * f[0], offset.y() * f[1], offset.x() * f[2], offset.y() * f[3]));
}
}
else
{
painter->setWorldTransform(getRotateMatrix_1(), true);
WWorldPointF c = data()->rect.center();
double ag = WWorldLineF(c, pos).angle() - 90;
painter->setWorldTransform(WMatrix().translate(-c.x(), -c.y()) * WMatrix().rotate(ag + data()->angle) * WMatrix().translate(c.x(), c.y()));
painter->drawRect(data()->rect);
}
}
}