/*************************************************************************/
/*  patch_9_rect.cpp                                                     */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/*                                                                       */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the       */
/* "Software"), to deal in the Software without restriction, including   */
/* without limitation the rights to use, copy, modify, merge, publish,   */
/* distribute, sublicense, and/or sell copies of the Software, and to    */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions:                                             */
/*                                                                       */
/* The above copyright notice and this permission notice shall be        */
/* included in all copies or substantial portions of the Software.       */
/*                                                                       */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,       */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF    */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY  */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,  */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE     */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                */
/*************************************************************************/
#include "patch_9_rect.h"

#include "servers/visual_server.h"

void NinePatchRect::_notification(int p_what) {

	if (p_what == NOTIFICATION_DRAW) {

		if (texture.is_null())
			return;

		Rect2 rect = Rect2(Point2(), get_size());
		Rect2 src_rect = region_rect;

		texture->get_rect_region(rect, src_rect, rect, src_rect);

		RID ci = get_canvas_item();
		VS::get_singleton()->canvas_item_add_nine_patch(ci, rect, src_rect, texture->get_rid(), Vector2(margin[MARGIN_LEFT], margin[MARGIN_TOP]), Vector2(margin[MARGIN_RIGHT], margin[MARGIN_BOTTOM]), VS::NINE_PATCH_STRETCH, VS::NINE_PATCH_STRETCH, draw_center);
	}
}

Size2 NinePatchRect::get_minimum_size() const {

	return Size2(margin[MARGIN_LEFT] + margin[MARGIN_RIGHT], margin[MARGIN_TOP] + margin[MARGIN_BOTTOM]);
}
void NinePatchRect::_bind_methods() {

	ClassDB::bind_method(D_METHOD("set_texture", "texture"), &NinePatchRect::set_texture);
	ClassDB::bind_method(D_METHOD("get_texture"), &NinePatchRect::get_texture);
	ClassDB::bind_method(D_METHOD("set_patch_margin", "margin", "value"), &NinePatchRect::set_patch_margin);
	ClassDB::bind_method(D_METHOD("get_patch_margin", "margin"), &NinePatchRect::get_patch_margin);
	ClassDB::bind_method(D_METHOD("set_region_rect", "rect"), &NinePatchRect::set_region_rect);
	ClassDB::bind_method(D_METHOD("get_region_rect"), &NinePatchRect::get_region_rect);
	ClassDB::bind_method(D_METHOD("set_draw_center", "draw_center"), &NinePatchRect::set_draw_center);
	ClassDB::bind_method(D_METHOD("get_draw_center"), &NinePatchRect::get_draw_center);

	ADD_SIGNAL(MethodInfo("texture_changed"));

	ADD_PROPERTYNZ(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
	ADD_PROPERTYNO(PropertyInfo(Variant::BOOL, "draw_center"), "set_draw_center", "get_draw_center");
	ADD_PROPERTYNZ(PropertyInfo(Variant::RECT2, "region_rect"), "set_region_rect", "get_region_rect");

	ADD_GROUP("Patch Margin", "patch_margin_");
	ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "patch_margin_left", PROPERTY_HINT_RANGE, "0,16384,1"), "set_patch_margin", "get_patch_margin", MARGIN_LEFT);
	ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "patch_margin_top", PROPERTY_HINT_RANGE, "0,16384,1"), "set_patch_margin", "get_patch_margin", MARGIN_TOP);
	ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "patch_margin_right", PROPERTY_HINT_RANGE, "0,16384,1"), "set_patch_margin", "get_patch_margin", MARGIN_RIGHT);
	ADD_PROPERTYINZ(PropertyInfo(Variant::INT, "patch_margin_bottom", PROPERTY_HINT_RANGE, "0,16384,1"), "set_patch_margin", "get_patch_margin", MARGIN_BOTTOM);
}

void NinePatchRect::set_texture(const Ref<Texture> &p_tex) {

	if (texture == p_tex)
		return;
	texture = p_tex;
	update();
	/*
	if (texture.is_valid())
		texture->set_flags(texture->get_flags()&(~Texture::FLAG_REPEAT)); //remove repeat from texture, it looks bad in sprites
	*/
	minimum_size_changed();
	emit_signal("texture_changed");
}

Ref<Texture> NinePatchRect::get_texture() const {

	return texture;
}

void NinePatchRect::set_patch_margin(Margin p_margin, int p_size) {

	ERR_FAIL_INDEX(p_margin, 4);
	margin[p_margin] = p_size;
	update();
	minimum_size_changed();
	switch (p_margin) {
		case MARGIN_LEFT:
			_change_notify("patch_margin_left");
			break;
		case MARGIN_TOP:
			_change_notify("patch_margin_top");
			break;
		case MARGIN_RIGHT:
			_change_notify("patch_margin_right");
			break;
		case MARGIN_BOTTOM:
			_change_notify("patch_margin_bottom");
			break;
	}
}

int NinePatchRect::get_patch_margin(Margin p_margin) const {

	ERR_FAIL_INDEX_V(p_margin, 4, 0);
	return margin[p_margin];
}

void NinePatchRect::set_region_rect(const Rect2 &p_region_rect) {

	if (region_rect == p_region_rect)
		return;

	region_rect = p_region_rect;

	item_rect_changed();
	_change_notify("region_rect");
}

Rect2 NinePatchRect::get_region_rect() const {

	return region_rect;
}

void NinePatchRect::set_draw_center(bool p_draw) {

	draw_center = p_draw;
	update();
}

bool NinePatchRect::get_draw_center() const {

	return draw_center;
}

NinePatchRect::NinePatchRect() {

	margin[MARGIN_LEFT] = 0;
	margin[MARGIN_RIGHT] = 0;
	margin[MARGIN_BOTTOM] = 0;
	margin[MARGIN_TOP] = 0;

	set_mouse_filter(MOUSE_FILTER_IGNORE);
	draw_center = true;
}

NinePatchRect::~NinePatchRect() {
}