add MapItemBase::renderHints

libs/map/mapitembase.cpp

@@ -4,7 +4,9 @@
 #include "osm_math_p.h"
 
 
-MapItemBase::MapItemBase() {}
+MapItemBase::MapItemBase() {
+	m_hints = QPainter::Antialiasing | QPainter::SmoothPixmapTransform;
+}
 
 
 MapItemBase::~MapItemBase() {
@@ -19,6 +21,18 @@ void MapItemBase::setInteracive(bool newInteracive) {
 }
 
 
+void MapItemBase::setRenderHints(QPainter::RenderHints h) {
+	m_hints = h;
+	updateParent();
+}
+
+
+void MapItemBase::setRenderHint(QPainter::RenderHint h, bool on) {
+	m_hints.setFlag(h, on);
+	updateParent();
+}
+
+
 void MapItemBase::setVisible(bool newVisible) {
 	m_visible = newVisible;
 	updateParent();

libs/map/mapitembase.h

@@ -38,10 +38,13 @@ public:
 	explicit MapItemBase();
 	virtual ~MapItemBase();
 
-
 	bool isInteracive() const { return m_interacive; }
 	void setInteracive(bool newInteracive);
 
+	QPainter::RenderHints renderHints() const { return m_hints; }
+	void setRenderHints(QPainter::RenderHints h);
+	void setRenderHint(QPainter::RenderHint h, bool on = true);
+
 	bool isVisible() const { return m_visible; }
 	void setVisible(bool newVisible);
 	bool isHidden() const { return !isVisible(); }
@@ -97,6 +100,7 @@ private:
 	QPointF m_position, m_scale = {1., 1.}, m_offset;
 	QRectF m_bounding;
 	QCursor m_cursor;
+	QPainter::RenderHints m_hints;
 	QMap<int, QVariant> data_;
 };
 

libs/map/mapview.cpp

@@ -320,8 +320,7 @@ void MapView::drawBackground() {
 
 void MapView::drawItems(QPainter & p) {
 	auto src_tr = p.transform();
-	p.setRenderHint(QPainter::Antialiasing);
-	p.setRenderHint(QPainter::SmoothPixmapTransform);
+	QPainter::RenderHints cur_hints;
 	QPoint mouse        = mapFromGlobal(QCursor::pos());
 	MapItemBase * hover = nullptr;
 	for (auto * i: items_) {
@@ -332,6 +331,10 @@ void MapView::drawItems(QPainter & p) {
 		p.translate(i->m_offset.x(), -i->m_offset.y());
 		p.rotate(i->getRotation());
 		if (!i->ignore_scale) p.scale(i->getScale().x(), i->getScale().y());
+		if (cur_hints != i->renderHints()) {
+			cur_hints = i->renderHints();
+			p.setRenderHints(cur_hints);
+		}
 		i->draw(&p);
 		QTransform mtr;
 		mtr.rotate(-i->getRotation());