/*
 *  Roo/E, the Kangaroo Punch Portable GUI Toolkit
 *  Copyright (C) 2022 Scott Duensing
 *
 *  http://kangaroopunch.com
 *
 *
 *  This file is part of Roo/E.
 *
 *  Roo/E is free software: you can redistribute it and/or modify it under the
 *  terms of the GNU Affero General Public License as published by the Free
 *  Software Foundation, either version 3 of the License, or (at your option)
 *  any later version.
 *
 *  Roo/E is distributed in the hope that it will be useful, but WITHOUT ANY
 *  WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 *  FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 *  details.
 *
 *  You should have received a copy of the GNU Affero General Public License
 *  along with Roo/E. If not, see <https://www.gnu.org/licenses/>.
 *
 */


#include "../image.h"

#include "picture.h"


uint8_t  __MAGIC_PICTURE = 0;


static void pictureDestroy(struct WidgetS *widget, ...);
static void picturePaint(struct WidgetS *widget, ...);


void pictureClickSet(PictureT *picture, ClickHandlerT handler, void *data) {
	picture->base.reg->click = handler;
	picture->base.data       = data;
}


PictureT *pictureCreate(char *filename, ...) {
	PictureT *p = NULL;

	NEW(PictureT, p);
	memset(p, 0, sizeof(PictureT));
	p->picture = imageLoad(filename);
	if (!p->picture) {
		DEL(p);
		return NULL;
	}
	guiWidgetBaseSet(W(p), __MAGIC_PICTURE, surfaceWidthGet(p->picture), surfaceHeightGet(p->picture));

	return p;
}


static void pictureDestroy(struct WidgetS *widget, ...) {
	PictureT *p = (PictureT *)widget;

	if (p->picture) DEL(p->picture);
	DEL(p);
}


static void picturePaint(struct WidgetS *widget, ...) {
	PictureT *p = (PictureT *)widget;

	if (guiWidgetDirtyGet(widget)) {
		guiWidgetDirtySet(widget, 0);
		// ***TODO*** Clipping.
		surfaceBlit(p->base.r.x, p->base.r.y, 0, 0, 0, 0, p->picture);
	}
}


RegisterT *pictureRegister(uint8_t magic) {
	static RegisterT reg = {
		"Picture",
		NULL,          // No default on-click handler.
		pictureDestroy,
		picturePaint,
		NULL           // No unregister handler.
	};

	// One-time widget startup code.
	__MAGIC_PICTURE = magic;

	return &reg;
}