Can use AtlasTextures as custom mouse cursor.

fixes #3957

main/input_default.cpp

@@ -30,6 +30,7 @@
 #include "servers/visual_server.h"
 #include "os/os.h"
 #include "input_map.h"
+#include "scene/resources/texture.h"
 
 void InputDefault::SpeedTrack::update(const Vector2& p_delta_p) {
 
@@ -463,9 +464,11 @@ void InputDefault::set_custom_mouse_cursor(const RES& p_cursor,const Vector2& p_
 		set_mouse_mode(MOUSE_MODE_VISIBLE);
 		VisualServer::get_singleton()->cursor_set_visible(false);
 	} else {
+		Ref<AtlasTexture> atex = custom_cursor;
+		Rect2 region = atex.is_valid() ? atex->get_region() : Rect2();
 		set_mouse_mode(MOUSE_MODE_HIDDEN);
 		VisualServer::get_singleton()->cursor_set_visible(true);
-		VisualServer::get_singleton()->cursor_set_texture(custom_cursor->get_rid(),p_hotspot);
+		VisualServer::get_singleton()->cursor_set_texture(custom_cursor->get_rid(),p_hotspot, 0, region);
 		VisualServer::get_singleton()->cursor_set_pos(get_mouse_pos());
 	}
 }

servers/visual/visual_server_raster.cpp

@@ -4448,12 +4448,13 @@ void VisualServerRaster::cursor_set_rotation(float p_rotation, int p_cursor) {
 	cursors[p_cursor].rot = p_rotation;
 };
 
-void VisualServerRaster::cursor_set_texture(RID p_texture, const Point2 &p_center_offset, int p_cursor) {
+void VisualServerRaster::cursor_set_texture(RID p_texture, const Point2 &p_center_offset, int p_cursor, const Rect2 &p_region) {
 	VS_CHANGED;
 	ERR_FAIL_INDEX(p_cursor, MAX_CURSORS);
 
 	cursors[p_cursor].texture = p_texture;
 	cursors[p_cursor].center = p_center_offset;
+	cursors[p_cursor].region = p_region;
 };
 
 void VisualServerRaster::cursor_set_visible(bool p_visible, int p_cursor) {
@@ -7538,8 +7539,13 @@ void VisualServerRaster::_draw_cursors_and_margins() {
 
 		RID tex = cursors[i].texture?cursors[i].texture:default_cursor_texture;
 		ERR_CONTINUE( !tex );
-		Point2 size(texture_get_width(tex), texture_get_height(tex));
-		rasterizer->canvas_draw_rect(Rect2(cursors[i].pos, size), 0, Rect2(), tex, Color(1, 1, 1, 1));
+		if (cursors[i].region.has_no_area()) {
+			Point2 size(texture_get_width(tex), texture_get_height(tex));
+			rasterizer->canvas_draw_rect(Rect2(cursors[i].pos, size), 0, Rect2(), tex, Color(1, 1, 1, 1));
+		} else {
+			Point2 size = cursors[i].region.size;
+			rasterizer->canvas_draw_rect(Rect2(cursors[i].pos, size), Rasterizer::CANVAS_RECT_REGION, cursors[i].region, tex, Color(1, 1, 1, 1));
+		}
 	};
 
 

servers/visual/visual_server_raster.h

@@ -544,10 +544,12 @@ class VisualServerRaster : public VisualServer {
 		RID texture;
 		Point2 center;
 		bool visible;
+		Rect2 region;
 		Cursor() {
 
 			rot = 0;
 			visible = false;
+			region = Rect2();
 		};
 	};
 
@@ -1240,7 +1242,7 @@ public:
 
 	/* CURSOR */
 	virtual void cursor_set_rotation(float p_rotation, int p_cursor = 0); // radians
-	virtual void cursor_set_texture(RID p_texture, const Point2 &p_center_offset, int p_cursor=0);
+	virtual void cursor_set_texture(RID p_texture, const Point2 &p_center_offset, int p_cursor=0, const Rect2 &p_region=Rect2());
 	virtual void cursor_set_visible(bool p_visible, int p_cursor = 0);
 	virtual void cursor_set_pos(const Point2& p_pos, int p_cursor = 0);
 

servers/visual/visual_server_wrap_mt.h

@@ -680,7 +680,7 @@ public:
 
 	/* CURSOR */
 	FUNC2(cursor_set_rotation,float , int ); // radians
-	FUNC3(cursor_set_texture,RID , const Point2 &, int );
+	FUNC4(cursor_set_texture,RID , const Point2 &, int, const Rect2 &);
 	FUNC2(cursor_set_visible,bool , int );
 	FUNC2(cursor_set_pos,const Point2& , int );
 

servers/visual_server.h

@@ -1110,7 +1110,7 @@ public:
 
 	/* CURSOR */
 	virtual void cursor_set_rotation(float p_rotation, int p_cursor = 0)=0; // radians
-	virtual void cursor_set_texture(RID p_texture, const Point2 &p_center_offset = Point2(0, 0), int p_cursor=0)=0;
+	virtual void cursor_set_texture(RID p_texture, const Point2 &p_center_offset = Point2(0, 0), int p_cursor=0, const Rect2 &p_region=Rect2())=0;
 	virtual void cursor_set_visible(bool p_visible, int p_cursor = 0)=0;
 	virtual void cursor_set_pos(const Point2& p_pos, int p_cursor = 0)=0;