/*  back_buffer_copy.cpp                                                 */


#include "back_buffer_copy.h"

void BackBufferCopy::_update_copy_mode() {
	switch (copy_mode) {
		case COPY_MODE_DISABLED: {
			RS::get_singleton()->canvas_item_set_copy_to_backbuffer(get_canvas_item(), false, Rect2());
		} break;
		case COPY_MODE_RECT: {
			RS::get_singleton()->canvas_item_set_copy_to_backbuffer(get_canvas_item(), true, rect);
		} break;
		case COPY_MODE_VIEWPORT: {
			RS::get_singleton()->canvas_item_set_copy_to_backbuffer(get_canvas_item(), true, Rect2());

		} break;
	}
}

#ifdef TOOLS_ENABLED
Rect2 BackBufferCopy::_edit_get_rect() const {
	return rect;
}

bool BackBufferCopy::_edit_use_rect() const {
	return true;
}
#endif

Rect2 BackBufferCopy::get_anchorable_rect() const {
	return rect;
}

void BackBufferCopy::set_rect(const Rect2 &p_rect) {
	rect = p_rect;
	_update_copy_mode();
	item_rect_changed();
}

Rect2 BackBufferCopy::get_rect() const {
	return rect;
}

void BackBufferCopy::set_copy_mode(CopyMode p_mode) {
	copy_mode = p_mode;
	_update_copy_mode();
	_change_notify();
}

BackBufferCopy::CopyMode BackBufferCopy::get_copy_mode() const {
	return copy_mode;
}

void BackBufferCopy::_validate_property(PropertyInfo &p_property) const {
	if (copy_mode != COPY_MODE_RECT && p_property.name == "rect") {
		p_property.usage = PROPERTY_USAGE_NOEDITOR;
	}
}

void BackBufferCopy::_bind_methods() {
	ClassDB::bind_method(D_METHOD("set_rect", "rect"), &BackBufferCopy::set_rect);
	ClassDB::bind_method(D_METHOD("get_rect"), &BackBufferCopy::get_rect);

	ClassDB::bind_method(D_METHOD("set_copy_mode", "copy_mode"), &BackBufferCopy::set_copy_mode);
	ClassDB::bind_method(D_METHOD("get_copy_mode"), &BackBufferCopy::get_copy_mode);

	ADD_PROPERTY(PropertyInfo(Variant::INT, "copy_mode", PROPERTY_HINT_ENUM, "Disabled,Rect,Viewport"), "set_copy_mode", "get_copy_mode");
	ADD_PROPERTY(PropertyInfo(Variant::RECT2, "rect"), "set_rect", "get_rect");

	BIND_ENUM_CONSTANT(COPY_MODE_DISABLED);
	BIND_ENUM_CONSTANT(COPY_MODE_RECT);
	BIND_ENUM_CONSTANT(COPY_MODE_VIEWPORT);
}

BackBufferCopy::BackBufferCopy() {
	rect = Rect2(-100, -100, 200, 200);
	copy_mode = COPY_MODE_RECT;
	_update_copy_mode();
}
BackBufferCopy::~BackBufferCopy() {
}