C++ Rect2函数代码示例

bool Physics2DDirectSpaceStateSW::collide_shape(RID p_shape, const Transform2D &p_shape_xform, const Vector2 &p_motion, real_t p_margin, Vector2 *r_results, int p_result_max, int &r_result_count, const Set<RID> &p_exclude, uint32_t p_collision_mask) {

	if (p_result_max <= 0)
		return 0;

	Shape2DSW *shape = Physics2DServerSW::singletonsw->shape_owner.get(p_shape);
	ERR_FAIL_COND_V(!shape, 0);

	Rect2 aabb = p_shape_xform.xform(shape->get_aabb());
	aabb = aabb.merge(Rect2(aabb.position + p_motion, aabb.size)); //motion
	aabb = aabb.grow(p_margin);

	int amount = space->broadphase->cull_aabb(aabb, space->intersection_query_results, Space2DSW::INTERSECTION_QUERY_MAX, space->intersection_query_subindex_results);

	bool collided = false;
	r_result_count = 0;

	Physics2DServerSW::CollCbkData cbk;
	cbk.max = p_result_max;
	cbk.amount = 0;
	cbk.ptr = r_results;
	CollisionSolver2DSW::CallbackResult cbkres = NULL;

	Physics2DServerSW::CollCbkData *cbkptr = NULL;
	if (p_result_max > 0) {
		cbkptr = &cbk;
		cbkres = Physics2DServerSW::_shape_col_cbk;
	}

	for (int i = 0; i < amount; i++) {

		if (!_can_collide_with(space->intersection_query_results[i], p_collision_mask))
			continue;

		const CollisionObject2DSW *col_obj = space->intersection_query_results[i];
		int shape_idx = space->intersection_query_subindex_results[i];

		if (p_exclude.has(col_obj->get_self()))
			continue;

		cbk.valid_dir = Vector2();
		cbk.valid_depth = 0;

		if (CollisionSolver2DSW::solve(shape, p_shape_xform, p_motion, col_obj->get_shape(shape_idx), col_obj->get_transform() * col_obj->get_shape_transform(shape_idx), Vector2(), cbkres, cbkptr, NULL, p_margin)) {
			collided = p_result_max == 0 || cbk.amount > 0;
		}
	}

	r_result_count = cbk.amount;

	return collided;
}

Rect2 AnimatedSprite3D::get_item_rect() const {

	if (!frames.is_valid() || !frames->has_animation(animation) || frame < 0 || frame >= frames->get_frame_count(animation)) {
		return Rect2(0, 0, 1, 1);
	}

	Ref<Texture> t;
	if (animation)
		t = frames->get_frame(animation, frame);
	if (t.is_null())
		return Rect2(0, 0, 1, 1);
	Size2i s = t->get_size();

	Point2 ofs = get_offset();
	if (centered)
		ofs -= s / 2;

	if (s == Size2(0, 0))
		s = Size2(1, 1);

	return Rect2(ofs, s);
}

void PopupMenu::_activate_submenu(int over) {

	Node* n = get_node(items[over].submenu);
	ERR_EXPLAIN("item subnode does not exist: "+items[over].submenu);
	ERR_FAIL_COND(!n);
	Popup *pm = n->cast_to<Popup>();
	ERR_EXPLAIN("item subnode is not a Popup: "+items[over].submenu);
	ERR_FAIL_COND(!pm);
	if (pm->is_visible())
		return; //already visible!


	Point2 p = get_global_pos();
	Rect2 pr(p,get_size());
	Ref<StyleBox> style = get_stylebox("panel");

	Point2 pos = p+Point2(get_size().width,items[over]._ofs_cache-style->get_offset().y);
	Size2 size = pm->get_size();
	// fix pos
	if (pos.x+size.width > get_viewport_rect().size.width)
		pos.x=p.x-size.width;

	pm->set_pos(pos);
	pm->popup();

	PopupMenu *pum = pm->cast_to<PopupMenu>();
	if (pum) {

		pr.pos-=pum->get_global_pos();
		pum->clear_autohide_areas();
		pum->add_autohide_area(Rect2(pr.pos.x,pr.pos.y,pr.size.x,items[over]._ofs_cache));
		if (over<items.size()-1) {
			int from = items[over+1]._ofs_cache;
			pum->add_autohide_area(Rect2(pr.pos.x,pr.pos.y+from,pr.size.x,pr.size.y-from));
		}

	}

}

void BroadPhase2DHashGrid::remove(ID p_id) {

	Map<ID,Element>::Element *E=element_map.find(p_id);
	ERR_FAIL_COND(!E);

	Element &e=E->get();

	if (e.aabb!=Rect2())
		_exit_grid(&e,e.aabb,e._static);

	element_map.erase(p_id);

}

void CollisionPolygon2D::set_polygon(const Vector<Point2>& p_polygon) {

	polygon=p_polygon;

	if (can_update_body) {
		for(int i=0;i<polygon.size();i++) {
			if (i==0)
				aabb=Rect2(polygon[i],Size2());
			else
				aabb.expand_to(polygon[i]);
		}
		if (aabb==Rect2()) {

			aabb=Rect2(-10,-10,20,20);
		} else {
			aabb.pos-=aabb.size*0.3;
			aabb.size+=aabb.size*0.6;
		}
		_update_parent();
	}
	update();
}

void Viewport::_vp_input(const InputEvent& p_ev) {

	if (render_target && to_screen_rect==Rect2())
		return; //if render target, can't get input events

	//this one handles system input, p_ev are in system coordinates
	//they are converted to viewport coordinates

	InputEvent ev = p_ev;	
	_make_input_local(ev);
	input(ev);

}

void MenuButton::pressed() {
	
	emit_signal("about_to_show");
	Size2 size=get_size();

	Point2 gp = get_global_pos();
	popup->set_global_pos( gp + Size2( 0, size.height ) );
	popup->set_size( Size2( size.width, 0) );	
	popup->set_parent_rect( Rect2(Point2(gp-popup->get_global_pos()),get_size()));
	popup->popup();
	popup->call_deferred("grab_click_focus");
	
}

void Path2DEditor::forward_draw_over_canvas(Control *p_canvas) {

	if (!node)
		return;

	if (!node->is_visible_in_tree())
		return;

	if (!node->get_curve().is_valid())
		return;

	Transform2D xform = canvas_item_editor->get_canvas_transform() * node->get_global_transform();
	Ref<Texture> handle = get_icon("EditorHandle", "EditorIcons");
	Size2 handle_size = handle->get_size();

	Ref<Curve2D> curve = node->get_curve();

	int len = curve->get_point_count();
	Control *vpc = canvas_item_editor->get_viewport_control();

	for (int i = 0; i < len; i++) {

		Vector2 point = xform.xform(curve->get_point_position(i));
		vpc->draw_texture_rect(handle, Rect2(point - handle_size * 0.5, handle_size), false, Color(1, 1, 1, 1));

		if (i < len - 1) {
			Vector2 pointout = xform.xform(curve->get_point_position(i) + curve->get_point_out(i));
			vpc->draw_line(point, pointout, Color(0.5, 0.5, 1.0, 0.8), 1.0);
			vpc->draw_texture_rect(handle, Rect2(pointout - handle_size * 0.5, handle_size), false, Color(1, 0.5, 1, 0.3));
		}

		if (i > 0) {
			Vector2 pointin = xform.xform(curve->get_point_position(i) + curve->get_point_in(i));
			vpc->draw_line(point, pointin, Color(0.5, 0.5, 1.0, 0.8), 1.0);
			vpc->draw_texture_rect(handle, Rect2(pointin - handle_size * 0.5, handle_size), false, Color(1, 0.5, 1, 0.3));
		}
	}
}

void VisualServerViewport::draw_viewports() {

	//sort viewports

	//draw viewports

	clear_color = GLOBAL_GET("rendering/viewport/default_clear_color");

	active_viewports.sort_custom<ViewportSort>();

	for (int i = 0; i < active_viewports.size(); i++) {

		Viewport *vp = active_viewports[i];

		if (vp->update_mode == VS::VIEWPORT_UPDATE_DISABLED)
			continue;

		ERR_CONTINUE(!vp->render_target.is_valid());

		bool visible = vp->viewport_to_screen_rect != Rect2() || vp->update_mode == VS::VIEWPORT_UPDATE_ALWAYS || vp->update_mode == VS::VIEWPORT_UPDATE_ONCE;

		if (!visible)
			continue;

		VSG::rasterizer->set_current_render_target(vp->render_target);
		_draw_viewport(vp);

		if (vp->viewport_to_screen_rect != Rect2()) {
			//copy to screen if set as such
			VSG::rasterizer->set_current_render_target(RID());
			VSG::rasterizer->blit_render_target_to_screen(vp->render_target, vp->viewport_to_screen_rect, vp->viewport_to_screen);
		}

		if (vp->update_mode == VS::VIEWPORT_UPDATE_ONCE) {
			vp->update_mode = VS::VIEWPORT_UPDATE_DISABLED;
		}
	}
}

void ColorPickerButton::_notification(int p_what) {

	if (p_what == NOTIFICATION_DRAW) {

		Ref<StyleBox> normal = get_stylebox("normal");
		Rect2 r = Rect2(normal->get_offset(), get_size() - normal->get_minimum_size());
		draw_texture_rect(Control::get_icon("bg", "ColorPickerButton"), r, true);
		draw_rect(r, color);
	}

	if (p_what == MainLoop::NOTIFICATION_WM_QUIT_REQUEST && popup) {
		popup->hide();
	}
}

void LargeTexture::draw_rect(RID p_canvas_item,const Rect2& p_rect, bool p_tile,const Color& p_modulate, bool p_transpose) const {

	//tiling not supported for this
	if (size.x==0 || size.y==0)
		return;

	Size2 scale = p_rect.size/size;

	for(int i=0;i<pieces.size();i++) {

		// TODO
		pieces[i].texture->draw_rect(p_canvas_item,Rect2(pieces[i].offset*scale+p_rect.pos,pieces[i].texture->get_size()*scale),false,p_modulate,p_transpose);
	}
}

void VideoPlayer::_notification(int p_notification) {

	switch (p_notification) {

		case NOTIFICATION_ENTER_SCENE: {

			//set_idle_process(false); //don't annoy
			if (stream.is_valid() && autoplay && !get_scene()->is_editor_hint())
				play();
		} break;

		case NOTIFICATION_PROCESS: {

			if (stream.is_null())
				return;
			if (paused)
				return;

			while (stream->get_pending_frame_count()) {

				Image img = stream->pop_frame();
				if (texture->get_width() == 0) {
					texture->create(img.get_width(),img.get_height(),img.get_format(),Texture::FLAG_VIDEO_SURFACE|Texture::FLAG_FILTER);
					update();
					minimum_size_changed();
				} else {

					if (stream->get_pending_frame_count() == 0)
						texture->set_data(img);
				};
			};

		} break;

		case NOTIFICATION_DRAW: {

			if (texture.is_null())
				return;
			if (texture->get_width() == 0)
				return;

			Size2 s=expand?get_size():texture->get_size();
			RID ci = get_canvas_item();
			printf("drawing with size %f, %f\n", s.x, s.y);
			draw_texture_rect(texture,Rect2(Point2(),s),false);

		} break;
	};

};

void StyleBoxFlat::draw(RID p_canvas_item, const Rect2 &p_rect) const {

	VisualServer *vs = VisualServer::get_singleton();
	Rect2i r = p_rect;

	for (int i = 0; i < border_size; i++) {

		Color color_upleft = light_color;
		Color color_downright = dark_color;

		if (blend) {

			color_upleft.r = (border_size - i) * color_upleft.r / border_size + i * bg_color.r / border_size;
			color_upleft.g = (border_size - i) * color_upleft.g / border_size + i * bg_color.g / border_size;
			color_upleft.b = (border_size - i) * color_upleft.b / border_size + i * bg_color.b / border_size;

			color_downright.r = (border_size - i) * color_downright.r / border_size + i * bg_color.r / border_size;
			color_downright.g = (border_size - i) * color_downright.g / border_size + i * bg_color.g / border_size;
			color_downright.b = (border_size - i) * color_downright.b / border_size + i * bg_color.b / border_size;
		}

		vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r.position.x, r.position.y + r.size.y - 1), Size2(r.size.x, 1)), color_downright);
		vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r.position.x + r.size.x - 1, r.position.y), Size2(1, r.size.y)), color_downright);

		vs->canvas_item_add_rect(p_canvas_item, Rect2(r.position, Size2(r.size.x, 1)), color_upleft);
		vs->canvas_item_add_rect(p_canvas_item, Rect2(r.position, Size2(1, r.size.y)), color_upleft);

		r.position.x++;
		r.position.y++;
		r.size.x -= 2;
		r.size.y -= 2;
	}

	if (draw_center)
		vs->canvas_item_add_rect(p_canvas_item, Rect2(r.position, r.size), bg_color);

	Rect2i r_add = p_rect;
	vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r_add.position.x - additional_border_size[MARGIN_LEFT], r_add.position.y - additional_border_size[MARGIN_TOP]), Size2(r_add.size.width + additional_border_size[MARGIN_LEFT] + additional_border_size[MARGIN_RIGHT], additional_border_size[MARGIN_TOP])), light_color);
	vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r_add.position.x - additional_border_size[MARGIN_LEFT], r_add.position.y), Size2(additional_border_size[MARGIN_LEFT], r_add.size.height)), light_color);
	vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r_add.position.x + r_add.size.width, r_add.position.y), Size2(additional_border_size[MARGIN_RIGHT], r_add.size.height)), dark_color);
	vs->canvas_item_add_rect(p_canvas_item, Rect2(Point2i(r_add.position.x - additional_border_size[MARGIN_LEFT], r_add.position.y + r_add.size.height), Size2(r_add.size.width + additional_border_size[MARGIN_LEFT] + additional_border_size[MARGIN_RIGHT], additional_border_size[MARGIN_BOTTOM])), dark_color);
}

void TileMap::_recompute_rect_cache() {


#ifdef DEBUG_ENABLED

	if (!rect_cache_dirty)
		return;

	Rect2 r_total;
	for (Map<PosKey,Quadrant>::Element *E=quadrant_map.front();E;E=E->next()) {


		Rect2 r;
		r.pos=_map_to_world(E->key().x*_get_quadrant_size(), E->key().y*_get_quadrant_size());
		r.expand_to( _map_to_world(E->key().x*_get_quadrant_size()+_get_quadrant_size(), E->key().y*_get_quadrant_size()) );
		r.expand_to( _map_to_world(E->key().x*_get_quadrant_size()+_get_quadrant_size(), E->key().y*_get_quadrant_size()+_get_quadrant_size()) );
		r.expand_to( _map_to_world(E->key().x*_get_quadrant_size(), E->key().y*_get_quadrant_size()+_get_quadrant_size()) );
		if (E==quadrant_map.front())
			r_total=r;
		else
			r_total=r_total.merge(r);

	}

	if (r_total==Rect2()) {
		rect_cache=Rect2(-10,-10,20,20);
	} else {
		rect_cache=r_total.grow(MAX(cell_size.x,cell_size.y)*_get_quadrant_size());
	}

	item_rect_changed();

	rect_cache_dirty=false;
#endif


}

Rect2 Sprite::get_rect() const {

	if (texture.is_null())
		return Rect2(0, 0, 1, 1);

	Size2i s;

	if (region) {
		s = region_rect.size;
	} else {
		s = texture->get_size();
	}

	s = s / Point2(hframes, vframes);

	Point2 ofs = offset;
	if (centered)
		ofs -= s / 2;

	if (s == Size2(0, 0))
		s = Size2(1, 1);

	return Rect2(ofs, s);
}