From 26396a4f7239ea3bc49b883d48f5c3605c76610a Mon Sep 17 00:00:00 2001
From: peri4 <peri4ko@yandex.ru>
Date: Thu, 20 Mar 2025 18:43:42 +0300
Subject: [PATCH] add MapItemBase::renderHints

---
 libs/map/mapitembase.cpp | 16 +++++++++++++++-
 libs/map/mapitembase.h   |  8 ++++++--
 libs/map/mapview.cpp     |  7 +++++--
 3 files changed, 26 insertions(+), 5 deletions(-)

diff --git a/libs/map/mapitembase.cpp b/libs/map/mapitembase.cpp
index 019223f..9c4268c 100644
--- a/libs/map/mapitembase.cpp
+++ b/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();
diff --git a/libs/map/mapitembase.h b/libs/map/mapitembase.h
index 59e45e8..cb97e1a 100644
--- a/libs/map/mapitembase.h
+++ b/libs/map/mapitembase.h
@@ -1,7 +1,7 @@
 /*
     QAD - Qt ADvanced
 
-	Ivan Pelipenko peri4ko@yandex.ru
+    Ivan Pelipenko peri4ko@yandex.ru
 
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU Lesser General Public License as published by
@@ -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_;
 };
 
diff --git a/libs/map/mapview.cpp b/libs/map/mapview.cpp
index 3cf5430..73149bd 100644
--- a/libs/map/mapview.cpp
+++ b/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());