/*************************************************************************/
/*  style_box.cpp                                                        */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                    http://www.godotengine.org                         */
/*************************************************************************/
/* Copyright (c) 2007-2017 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2017 Godot Engine contributors (cf. AUTHORS.md)    */
/*                                                                       */
/* 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 "style_box.h"

bool StyleBox::test_mask(const Point2 &p_point, const Rect2 &p_rect) const {

	return true;
}

void StyleBox::set_default_margin(Margin p_margin, float p_value) {

	margin[p_margin] = p_value;
	emit_changed();
}
float StyleBox::get_default_margin(Margin p_margin) const {

	return margin[p_margin];
}

float StyleBox::get_margin(Margin p_margin) const {

	if (margin[p_margin] < 0)
		return get_style_margin(p_margin);
	else
		return margin[p_margin];
}

Size2 StyleBox::get_minimum_size() const {

	return Size2(get_margin(MARGIN_LEFT) + get_margin(MARGIN_RIGHT), get_margin(MARGIN_TOP) + get_margin(MARGIN_BOTTOM));
}

Point2 StyleBox::get_offset() const {

	return Point2(get_margin(MARGIN_LEFT), get_margin(MARGIN_TOP));
}

Size2 StyleBox::get_center_size() const {

	return Size2();
}

void StyleBox::_bind_methods() {

	ClassDB::bind_method(D_METHOD("test_mask", "point", "rect"), &StyleBox::test_mask);

	ClassDB::bind_method(D_METHOD("set_default_margin", "margin", "offset"), &StyleBox::set_default_margin);
	ClassDB::bind_method(D_METHOD("get_default_margin", "margin"), &StyleBox::get_default_margin);

	//ClassDB::bind_method(D_METHOD("set_default_margin"),&StyleBox::set_default_margin);
	//ClassDB::bind_method(D_METHOD("get_default_margin"),&StyleBox::get_default_margin);

	ClassDB::bind_method(D_METHOD("get_margin", "margin"), &StyleBox::get_margin);
	ClassDB::bind_method(D_METHOD("get_minimum_size"), &StyleBox::get_minimum_size);
	ClassDB::bind_method(D_METHOD("get_center_size"), &StyleBox::get_center_size);
	ClassDB::bind_method(D_METHOD("get_offset"), &StyleBox::get_offset);

	ClassDB::bind_method(D_METHOD("draw", "canvas_item", "rect"), &StyleBox::draw);

	ADD_GROUP("Content Margin", "content_margin_");
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "content_margin_left", PROPERTY_HINT_RANGE, "-1,2048,1"), "set_default_margin", "get_default_margin", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "content_margin_right", PROPERTY_HINT_RANGE, "-1,2048,1"), "set_default_margin", "get_default_margin", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "content_margin_top", PROPERTY_HINT_RANGE, "-1,2048,1"), "set_default_margin", "get_default_margin", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "content_margin_bottom", PROPERTY_HINT_RANGE, "-1,2048,1"), "set_default_margin", "get_default_margin", MARGIN_BOTTOM);
}

StyleBox::StyleBox() {

	for (int i = 0; i < 4; i++) {

		margin[i] = -1;
	}
}

void StyleBoxTexture::set_texture(RES p_texture) {

	if (texture == p_texture)
		return;
	texture = p_texture;
	region_rect = Rect2(Point2(), texture->get_size());
	emit_signal("texture_changed");
	emit_changed();
	_change_notify("texture");
}

RES StyleBoxTexture::get_texture() const {

	return texture;
}

void StyleBoxTexture::set_normal_map(RES p_normal_map) {

	if (normal_map == p_normal_map)
		return;
	normal_map = p_normal_map;
	emit_changed();
}

RES StyleBoxTexture::get_normal_map() const {

	return normal_map;
}

void StyleBoxTexture::set_margin_size(Margin p_margin, float p_size) {

	margin[p_margin] = p_size;
	emit_changed();
}
float StyleBoxTexture::get_margin_size(Margin p_margin) const {

	return margin[p_margin];
}

float StyleBoxTexture::get_style_margin(Margin p_margin) const {

	return margin[p_margin];
}

void StyleBoxTexture::draw(RID p_canvas_item, const Rect2 &p_rect) const {
	if (texture.is_null())
		return;

	Rect2 rect = p_rect;
	Rect2 src_rect = region_rect;

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

	rect.position.x -= expand_margin[MARGIN_LEFT];
	rect.position.y -= expand_margin[MARGIN_TOP];
	rect.size.x += expand_margin[MARGIN_LEFT] + expand_margin[MARGIN_RIGHT];
	rect.size.y += expand_margin[MARGIN_TOP] + expand_margin[MARGIN_BOTTOM];

	RID normal_rid;
	if (normal_map.is_valid())
		normal_rid = normal_map->get_rid();

	VisualServer::get_singleton()->canvas_item_add_nine_patch(p_canvas_item, 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, modulate, normal_rid);
}

void StyleBoxTexture::set_draw_center(bool p_draw) {

	draw_center = p_draw;
	emit_changed();
}

bool StyleBoxTexture::get_draw_center() const {

	return draw_center;
}

Size2 StyleBoxTexture::get_center_size() const {

	if (texture.is_null())
		return Size2();

	return texture->get_size() - get_minimum_size();
}

void StyleBoxTexture::set_expand_margin_size(Margin p_expand_margin, float p_size) {

	ERR_FAIL_INDEX(p_expand_margin, 4);
	expand_margin[p_expand_margin] = p_size;
	emit_changed();
}

float StyleBoxTexture::get_expand_margin_size(Margin p_expand_margin) const {

	ERR_FAIL_INDEX_V(p_expand_margin, 4, 0);
	return expand_margin[p_expand_margin];
}

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

	if (region_rect == p_region_rect)
		return;

	region_rect = p_region_rect;
	emit_changed();
}

Rect2 StyleBoxTexture::get_region_rect() const {

	return region_rect;
}

void StyleBoxTexture::set_modulate(const Color &p_modulate) {
	if (modulate == p_modulate)
		return;
	modulate = p_modulate;
	emit_changed();
}

Color StyleBoxTexture::get_modulate() const {

	return modulate;
}

void StyleBoxTexture::_bind_methods() {

	ClassDB::bind_method(D_METHOD("set_texture", "texture"), &StyleBoxTexture::set_texture);
	ClassDB::bind_method(D_METHOD("get_texture"), &StyleBoxTexture::get_texture);

	ClassDB::bind_method(D_METHOD("set_normal_map", "normal_map"), &StyleBoxTexture::set_normal_map);
	ClassDB::bind_method(D_METHOD("get_normal_map"), &StyleBoxTexture::get_normal_map);

	ClassDB::bind_method(D_METHOD("set_margin_size", "margin", "size"), &StyleBoxTexture::set_margin_size);
	ClassDB::bind_method(D_METHOD("get_margin_size", "margin"), &StyleBoxTexture::get_margin_size);

	ClassDB::bind_method(D_METHOD("set_expand_margin_size", "margin", "size"), &StyleBoxTexture::set_expand_margin_size);
	ClassDB::bind_method(D_METHOD("get_expand_margin_size", "margin"), &StyleBoxTexture::get_expand_margin_size);

	ClassDB::bind_method(D_METHOD("set_region_rect", "region"), &StyleBoxTexture::set_region_rect);
	ClassDB::bind_method(D_METHOD("get_region_rect"), &StyleBoxTexture::get_region_rect);

	ClassDB::bind_method(D_METHOD("set_draw_center", "enable"), &StyleBoxTexture::set_draw_center);
	ClassDB::bind_method(D_METHOD("get_draw_center"), &StyleBoxTexture::get_draw_center);

	ClassDB::bind_method(D_METHOD("set_modulate", "color"), &StyleBoxTexture::set_modulate);
	ClassDB::bind_method(D_METHOD("get_modulate"), &StyleBoxTexture::get_modulate);

	ADD_SIGNAL(MethodInfo("texture_changed"));

	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "texture", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_texture", "get_texture");
	ADD_PROPERTY(PropertyInfo(Variant::OBJECT, "normal_map", PROPERTY_HINT_RESOURCE_TYPE, "Texture"), "set_normal_map", "get_normal_map");
	ADD_PROPERTYNZ(PropertyInfo(Variant::RECT2, "region_rect"), "set_region_rect", "get_region_rect");
	ADD_GROUP("Margin", "margin_");
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "margin_left", PROPERTY_HINT_RANGE, "0,2048,1"), "set_margin_size", "get_margin_size", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "margin_right", PROPERTY_HINT_RANGE, "0,2048,1"), "set_margin_size", "get_margin_size", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "margin_top", PROPERTY_HINT_RANGE, "0,2048,1"), "set_margin_size", "get_margin_size", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "margin_bottom", PROPERTY_HINT_RANGE, "0,2048,1"), "set_margin_size", "get_margin_size", MARGIN_BOTTOM);
	ADD_GROUP("Expand Margin", "expand_margin_");
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_left", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin_size", "get_expand_margin_size", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_right", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin_size", "get_expand_margin_size", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_top", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin_size", "get_expand_margin_size", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_bottom", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin_size", "get_expand_margin_size", MARGIN_BOTTOM);
	ADD_GROUP("Modulate", "modulate_");
	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "modulate_color"), "set_modulate", "get_modulate");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "draw_center"), "set_draw_center", "get_draw_center");
}

StyleBoxTexture::StyleBoxTexture() {

	for (int i = 0; i < 4; i++) {
		margin[i] = 0;
		expand_margin[i] = 0;
	}
	draw_center = true;
	modulate = Color(1, 1, 1, 1);
}
StyleBoxTexture::~StyleBoxTexture() {
}

////////////////

void StyleBoxFlat::set_bg_color(const Color &p_color) {

	bg_color = p_color;
	emit_changed();
}

Color StyleBoxFlat::get_bg_color() const {

	return bg_color;
}

void StyleBoxFlat::set_light_color(const Color &p_color) {

	set_border_color(MARGIN_LEFT, p_color);
	set_border_color(MARGIN_TOP, p_color);
	set_border_color(MARGIN_RIGHT, p_color);
	emit_changed();
}

Color StyleBoxFlat::get_light_color() const {

	return get_border_color(MARGIN_TOP);
}

void StyleBoxFlat::set_dark_color(const Color &p_color) {
	set_border_color(MARGIN_BOTTOM, p_color);
	emit_changed();
}

Color StyleBoxFlat::get_dark_color() const {

	return get_border_color(MARGIN_BOTTOM);
}

void StyleBoxFlat::set_border_color_all(const Color &p_color) {
	for (int i = 0; i < 4; i++) {

		border_color.write()[i] = p_color;
	}
	emit_changed();
}
void StyleBoxFlat::set_border_color(Margin p_border, const Color &p_color) {

	border_color.write()[p_border] = p_color;
	emit_changed();
}
Color StyleBoxFlat::get_border_color(Margin p_border) const {

	return border_color[p_border];
}

void StyleBoxFlat::set_border_width_all(int p_size) {
	border_width[0] = p_size;
	border_width[1] = p_size;
	border_width[2] = p_size;
	border_width[3] = p_size;
	emit_changed();
}
int StyleBoxFlat::get_border_width_min() const {

	return MIN(MIN(border_width[0], border_width[1]), MIN(border_width[2], border_width[3]));
}

void StyleBoxFlat::set_border_width(Margin p_margin, int p_width) {
	border_width[p_margin] = p_width;
	emit_changed();
}

int StyleBoxFlat::get_border_width(Margin p_margin) const {
	return border_width[p_margin];
}

void StyleBoxFlat::set_border_blend(bool p_blend) {

	blend_border = p_blend;
	emit_changed();
}
bool StyleBoxFlat::get_border_blend() const {

	return blend_border;
}

void StyleBoxFlat::set_corner_radius_all(int radius) {

	for (int i = 0; i < 4; i++) {
		corner_radius[i] = radius;
	}

	emit_changed();
}
void StyleBoxFlat::set_corner_radius_individual(const int radius_top_left, const int radius_top_right, const int radius_botton_right, const int radius_bottom_left) {
	corner_radius[0] = radius_top_left;
	corner_radius[1] = radius_top_right;
	corner_radius[2] = radius_botton_right;
	corner_radius[3] = radius_bottom_left;

	emit_changed();
}
int StyleBoxFlat::get_corner_radius_min() const {
	int smallest = corner_radius[0];
	for (int i = 1; i < 4; i++) {
		if (smallest > corner_radius[i]) {
			smallest = corner_radius[i];
		}
	}
	return smallest;
}

void StyleBoxFlat::set_expand_margin_size(Margin p_expand_margin, float p_size) {

	expand_margin[p_expand_margin] = p_size;
	emit_changed();
}
float StyleBoxFlat::get_expand_margin_size(Margin p_expand_margin) const {
	return expand_margin[p_expand_margin];
}
void StyleBoxFlat::set_filled(bool p_filled) {

	filled = p_filled;
	emit_changed();
}
bool StyleBoxFlat::is_filled() const {

	return filled;
}

Size2 StyleBoxFlat::get_center_size() const {

	return Size2();
}

inline void set_inner_corner_radius(const Rect2 style_rect, const Rect2 inner_rect, const int corner_radius[4], int *inner_corner_radius) {
	int border_left = inner_rect.position.x - style_rect.position.x;
	int border_top = inner_rect.position.y - style_rect.position.y;
	int border_right = style_rect.size.width - inner_rect.size.width - border_left;
	int border_bottom = style_rect.size.height - inner_rect.size.height - border_top;

	int rad;
	//tl
	rad = MIN(border_top, border_left);
	inner_corner_radius[0] = MAX(corner_radius[0] - rad, 0);

	//tr
	rad = MIN(border_top, border_bottom);
	inner_corner_radius[1] = MAX(corner_radius[1] - rad, 0);

	//br
	rad = MIN(border_bottom, border_right);
	inner_corner_radius[2] = MAX(corner_radius[2] - rad, 0);

	//bl
	rad = MIN(border_bottom, border_left);
	inner_corner_radius[3] = MAX(corner_radius[3] - rad, 0);
}

inline void draw_ring(Vector<Vector2> &verts, Vector<int> &indices, Vector<Color> &colors, const Rect2 style_rect, const int corner_radius[4],
		const Rect2 ring_rect, const int border_width[4], const Color inner_color[4], const Color outer_color[4], const int corner_detail) {

	int vert_offset = verts.size();
	if (!vert_offset) {
		vert_offset = 0;
	}
	int rings = (border_width[0] == 0 && border_width[1] == 0 && border_width[2] == 0 && border_width[3] == 0) ? 1 : 2;
	rings = 2;
	//TODO: check if the border_width is not too big... so it gets sized negative

	int ring_corner_radius[4];
	set_inner_corner_radius(style_rect, ring_rect, corner_radius, ring_corner_radius);

	//corner radius center points
	Vector<Point2> outer_points;
	outer_points.push_back(ring_rect.position + Vector2(ring_corner_radius[0], ring_corner_radius[0])); //tl
	outer_points.push_back(Point2(ring_rect.position.x + ring_rect.size.x - ring_corner_radius[1], ring_rect.position.y + ring_corner_radius[1])); //tr
	outer_points.push_back(ring_rect.position + ring_rect.size - Vector2(ring_corner_radius[2], ring_corner_radius[2])); //br
	outer_points.push_back(Point2(ring_rect.position.x + ring_corner_radius[3], ring_rect.position.y + ring_rect.size.y - ring_corner_radius[3])); //bl

	Rect2 inner_rect;
	inner_rect = ring_rect.grow_individual(-border_width[MARGIN_LEFT], -border_width[MARGIN_TOP], -border_width[MARGIN_RIGHT], -border_width[MARGIN_BOTTOM]);
	int inner_corner_radius[4];

	Vector<Point2> inner_points;
	set_inner_corner_radius(style_rect, inner_rect, corner_radius, inner_corner_radius);
	inner_points.push_back(inner_rect.position + Vector2(inner_corner_radius[0], inner_corner_radius[0])); //tl
	inner_points.push_back(Point2(inner_rect.position.x + inner_rect.size.x - inner_corner_radius[1], inner_rect.position.y + inner_corner_radius[1])); //tr
	inner_points.push_back(inner_rect.position + inner_rect.size - Vector2(inner_corner_radius[2], inner_corner_radius[2])); //br
	inner_points.push_back(Point2(inner_rect.position.x + inner_corner_radius[3], inner_rect.position.y + inner_rect.size.y - inner_corner_radius[3])); //bl

	//calculate the vert array
	for (int corner_index = 0; corner_index < 4; corner_index++) {
		for (int detail = 0; detail <= corner_detail; detail++) {
			for (int inner_outer = (2 - rings); inner_outer < 2; inner_outer++) {
				float radius;
				Color color;
				Point2 corner_point;
				if (inner_outer == 0) {
					radius = inner_corner_radius[corner_index];
					color = *inner_color;
					corner_point = inner_points[corner_index];
				} else {
					radius = ring_corner_radius[corner_index];
					color = *outer_color;
					corner_point = outer_points[corner_index];
				}
				float x = radius * (float)cos((double)corner_index * Math_PI / 2.0 + (double)detail / (double)corner_detail * Math_PI / 2.0 + Math_PI) + corner_point.x;
				float y = radius * (float)sin((double)corner_index * Math_PI / 2.0 + (double)detail / (double)corner_detail * Math_PI / 2.0 + Math_PI) + corner_point.y;
				verts.push_back(Vector2(x, y));
				colors.push_back(color);
			}
		}
	}

	if (rings == 2) {
		int vert_count = (corner_detail + 1) * 4 * rings;
		//fill the indices and the colors for the border
		for (int i = 0; i < vert_count; i++) {
			//poly 1
			indices.push_back(vert_offset + ((i + 0) % vert_count));
			indices.push_back(vert_offset + ((i + 2) % vert_count));
			indices.push_back(vert_offset + ((i + 1) % vert_count));
			//poly 2
			indices.push_back(vert_offset + ((i + 1) % vert_count));
			indices.push_back(vert_offset + ((i + 2) % vert_count));
			indices.push_back(vert_offset + ((i + 3) % vert_count));
		}
	}
}

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

	//adapt borders (prevent weired overlapping/glitchy drawings)
	int adapted_border[4] = { border_width[0], border_width[1], border_width[2], border_width[3] };

	//adapt corners (prevent weired overlapping/glitchy drawings)
	int adapted_corner[4] = { corner_radius[0], corner_radius[1], corner_radius[2], corner_radius[3] };

	VisualServer *vs = VisualServer::get_singleton();

	Rect2 style_rect = p_rect.grow_individual(expand_margin[MARGIN_LEFT], expand_margin[MARGIN_TOP], expand_margin[MARGIN_RIGHT], expand_margin[MARGIN_BOTTOM]);
	Rect2 infill_rect = style_rect.grow_individual(-adapted_border[MARGIN_LEFT], -adapted_border[MARGIN_TOP], -adapted_border[MARGIN_RIGHT], -adapted_border[MARGIN_BOTTOM]);
	Vector<Point2> verts;
	Vector<int> indices;
	Vector<Color> colors;

	//DRAW border
	Color bg_color_array[4] = { bg_color, bg_color, bg_color, bg_color };
	const Color *inner_color = ((blend_border) ? bg_color_array : border_color.read().ptr());
	draw_ring(verts, indices, colors, style_rect, adapted_corner,
			style_rect, adapted_border, inner_color, border_color.read().ptr(), corner_detail);

	//DRAW INFILL
	if (filled) {
		int temp_vert_offset = verts.size();
		int no_border[4] = { 0, 0, 0, 0 };
		draw_ring(verts, indices, colors, style_rect, adapted_corner,
				infill_rect, no_border, &bg_color, &bg_color, corner_detail);
		int added_vert_count = verts.size() - temp_vert_offset;
		//fill the indices and the colors for the center
		for (int index = 0; index <= added_vert_count / 2; index += 2) {
			int i = index;
			//poly 1
			indices.push_back(temp_vert_offset + i);
			indices.push_back(temp_vert_offset + added_vert_count - 4 - i);
			indices.push_back(temp_vert_offset + i + 2);
			//poly 1
			indices.push_back(temp_vert_offset + i);
			indices.push_back(temp_vert_offset + added_vert_count - 2 - i);
			indices.push_back(temp_vert_offset + added_vert_count - 4 - i);
		}
	}

	vs->canvas_item_add_triangle_array(p_canvas_item, indices, verts, colors);
}

float StyleBoxFlat::get_style_margin(Margin p_margin) const {
	int margin_size = border_width[p_margin];
	switch (p_margin) {
		case MARGIN_TOP:
			if (get_corner_radius(CORNER_TOP_LEFT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_TOP_LEFT) / 2;
			if (get_corner_radius(CORNER_TOP_RIGHT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_TOP_RIGHT) / 2;
		case MARGIN_BOTTOM:
			if (get_corner_radius(CORNER_BOTTOM_LEFT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_BOTTOM_LEFT) / 2;
			if (get_corner_radius(CORNER_BOTTOM_RIGHT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_BOTTOM_RIGHT) / 2;
		case MARGIN_LEFT:
			if (get_corner_radius(CORNER_TOP_LEFT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_TOP_LEFT) / 2;
			if (get_corner_radius(CORNER_BOTTOM_LEFT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_BOTTOM_LEFT) / 2;
		case MARGIN_RIGHT:
			if (get_corner_radius(CORNER_TOP_RIGHT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_TOP_RIGHT) / 2;
			if (get_corner_radius(CORNER_BOTTOM_RIGHT) / 2 > margin_size)
				margin_size = get_corner_radius(CORNER_BOTTOM_RIGHT) / 2;
	}
	return (float)margin_size;
}
void StyleBoxFlat::_bind_methods() {

	ClassDB::bind_method(D_METHOD("set_bg_color", "color"), &StyleBoxFlat::set_bg_color);
	ClassDB::bind_method(D_METHOD("get_bg_color"), &StyleBoxFlat::get_bg_color);

	ClassDB::bind_method(D_METHOD("set_border_color_all", "color"), &StyleBoxFlat::set_border_color_all);

	ClassDB::bind_method(D_METHOD("set_border_color", "margin", "color"), &StyleBoxFlat::set_border_color);
	ClassDB::bind_method(D_METHOD("get_border_color", "margin"), &StyleBoxFlat::get_border_color);

	ClassDB::bind_method(D_METHOD("set_light_color", "color"), &StyleBoxFlat::set_light_color);
	ClassDB::bind_method(D_METHOD("get_light_color"), &StyleBoxFlat::get_light_color);

	ClassDB::bind_method(D_METHOD("set_dark_color", "color"), &StyleBoxFlat::set_dark_color);
	ClassDB::bind_method(D_METHOD("get_dark_color"), &StyleBoxFlat::get_dark_color);

	ClassDB::bind_method(D_METHOD("set_border_width_all", "width"), &StyleBoxFlat::set_border_width_all);
	ClassDB::bind_method(D_METHOD("get_border_width_min"), &StyleBoxFlat::get_border_width_min);

	ClassDB::bind_method(D_METHOD("set_border_width", "margin", "width"), &StyleBoxFlat::set_border_width);
	ClassDB::bind_method(D_METHOD("get_border_width", "margin"), &StyleBoxFlat::get_border_width);

	ClassDB::bind_method(D_METHOD("set_border_blend", "blend"), &StyleBoxFlat::set_border_blend);
	ClassDB::bind_method(D_METHOD("get_border_blend"), &StyleBoxFlat::get_border_blend);

	ClassDB::bind_method(D_METHOD("set_corner_radius_individual", "radius_top_left", "radius_top_right", "radius_botton_right", "radius_bottom_left"), &StyleBoxFlat::set_corner_radius_individual);
	ClassDB::bind_method(D_METHOD("set_corner_radius_all", "radius"), &StyleBoxFlat::set_corner_radius_all);

	ClassDB::bind_method(D_METHOD("set_expand_margin", "margin", "size"), &StyleBoxFlat::set_expand_margin_size);
	ClassDB::bind_method(D_METHOD("get_expand_margin", "margin"), &StyleBoxFlat::get_expand_margin_size);

	ClassDB::bind_method(D_METHOD("set_filled", "filled"), &StyleBoxFlat::set_filled);
	ClassDB::bind_method(D_METHOD("is_filled"), &StyleBoxFlat::is_filled);

	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "bg_color"), "set_bg_color", "get_bg_color");

	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "filled"), "set_filled", "is_filled");

	ADD_GROUP("Border Width", "border_width_");
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "border_width_left", PROPERTY_HINT_RANGE, "0,1024,1"), "set_border_width", "get_border_width", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "border_width_top", PROPERTY_HINT_RANGE, "0,1024,1"), "set_border_width", "get_border_width", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "border_width_right", PROPERTY_HINT_RANGE, "0,1024,1"), "set_border_width", "get_border_width", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::INT, "border_width_bottom", PROPERTY_HINT_RANGE, "0,1024,1"), "set_border_width", "get_border_width", MARGIN_BOTTOM);

	ADD_GROUP("Border Color", "border_color_");
	ADD_PROPERTYI(PropertyInfo(Variant::COLOR, "border_color_left"), "set_border_color", "get_border_color", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::COLOR, "border_color_top"), "set_border_color", "get_border_color", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::COLOR, "border_color_right"), "set_border_color", "get_border_color", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::COLOR, "border_color_bottom"), "set_border_color", "get_border_color", MARGIN_BOTTOM);

	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "border_blend"), "set_border_blend", "get_border_blend");

	ADD_GROUP("Expand Margin", "expand_margin_");
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_left", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin", "get_expand_margin", MARGIN_LEFT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_right", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin", "get_expand_margin", MARGIN_RIGHT);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_top", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin", "get_expand_margin", MARGIN_TOP);
	ADD_PROPERTYI(PropertyInfo(Variant::REAL, "expand_margin_bottom", PROPERTY_HINT_RANGE, "0,2048,1"), "set_expand_margin", "get_expand_margin", MARGIN_BOTTOM);
}

StyleBoxFlat::StyleBoxFlat() {

	bg_color = Color(0.6, 0.6, 0.6);

	border_color.append(Color(0.8, 0.8, 0.8));
	border_color.append(Color(0.8, 0.8, 0.8));
	border_color.append(Color(0.8, 0.8, 0.8));
	border_color.append(Color(0.8, 0.8, 0.8));

	blend_border = false;
	filled = true;

	corner_detail = 8;
	border_width[0] = 0;
	border_width[1] = 0;
	border_width[2] = 0;
	border_width[3] = 0;

	expand_margin[0] = 0;
	expand_margin[1] = 0;
	expand_margin[2] = 0;
	expand_margin[3] = 0;

	corner_radius[0] = 0;
	corner_radius[1] = 0;
	corner_radius[2] = 0;
	corner_radius[3] = 0;
}
StyleBoxFlat::~StyleBoxFlat() {
}

void StyleBoxLine::set_color(const Color &p_color) {
	color = p_color;
	emit_changed();
}
Color StyleBoxLine::get_color() const {
	return color;
}

void StyleBoxLine::set_thickness(int p_thickness) {
	thickness = p_thickness;
	emit_changed();
}
int StyleBoxLine::get_thickness() const {
	return thickness;
}

void StyleBoxLine::set_vertical(bool p_vertical) {
	vertical = p_vertical;
}
bool StyleBoxLine::is_vertical() const {
	return vertical;
}

void StyleBoxLine::set_grow(float p_grow) {
	grow = p_grow;
	emit_changed();
}
float StyleBoxLine::get_grow() const {
	return grow;
}

void StyleBoxLine::_bind_methods() {

	ClassDB::bind_method(D_METHOD("set_color", "color"), &StyleBoxLine::set_color);
	ClassDB::bind_method(D_METHOD("get_color"), &StyleBoxLine::get_color);
	ClassDB::bind_method(D_METHOD("set_thickness", "thickness"), &StyleBoxLine::set_thickness);
	ClassDB::bind_method(D_METHOD("get_thickness"), &StyleBoxLine::get_thickness);
	ClassDB::bind_method(D_METHOD("set_grow", "grow"), &StyleBoxLine::set_grow);
	ClassDB::bind_method(D_METHOD("get_grow"), &StyleBoxLine::get_grow);
	ClassDB::bind_method(D_METHOD("set_vertical", "vertical"), &StyleBoxLine::set_vertical);
	ClassDB::bind_method(D_METHOD("is_vertical"), &StyleBoxLine::is_vertical);

	ADD_PROPERTY(PropertyInfo(Variant::COLOR, "color"), "set_color", "get_color");
	ADD_PROPERTY(PropertyInfo(Variant::INT, "thickness", PROPERTY_HINT_RANGE, "0,10"), "set_thickness", "get_thickness");
	ADD_PROPERTY(PropertyInfo(Variant::BOOL, "vertical"), "set_vertical", "is_vertical");
}
float StyleBoxLine::get_style_margin(Margin p_margin) const {
	return thickness;
}
Size2 StyleBoxLine::get_center_size() const {
	return Size2();
}

void StyleBoxLine::draw(RID p_canvas_item, const Rect2 &p_rect) const {
	VisualServer *vs = VisualServer::get_singleton();
	Rect2i r = p_rect;

	if (vertical) {
		r.position.y -= grow;
		r.size.y += grow * 2;
		r.size.x = thickness;
	} else {
		r.position.x -= grow;
		r.size.x += grow * 2;
		r.size.y = thickness;
	}

	vs->canvas_item_add_rect(p_canvas_item, r, color);
}

StyleBoxLine::StyleBoxLine() {
	grow = 1.0;
	thickness = 1;
	color = Color(0.0, 0.0, 0.0);
	vertical = false;
}
StyleBoxLine::~StyleBoxLine() {}