netsurf/image/ico.c

188 lines
4.6 KiB
C

/*
* Copyright 2006 Richard Wilson <info@tinct.net>
*
* This file is part of NetSurf, http://www.netsurf-browser.org/
*
* NetSurf is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; version 2 of the License.
*
* NetSurf 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 General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/** \file
* Content for image/ico (implementation)
*/
#include "utils/config.h"
#ifdef WITH_BMP
#include <assert.h>
#include <string.h>
#include <stdbool.h>
#include <stdlib.h>
#include <libnsbmp.h>
#include "utils/config.h"
#include "content/content_protected.h"
#include "content/hlcache.h"
#include "desktop/plotters.h"
#include "image/bitmap.h"
#include "image/ico.h"
#include "utils/log.h"
#include "utils/messages.h"
#include "utils/utils.h"
bool nsico_create(struct content *c, const struct http_parameter *params)
{
union content_msg_data msg_data;
c->data.ico.ico = calloc(sizeof(ico_collection), 1);
if (!c->data.ico.ico) {
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
ico_collection_create(c->data.ico.ico, &bmp_bitmap_callbacks);
return true;
}
bool nsico_convert(struct content *c)
{
struct bmp_image *bmp;
bmp_result res;
ico_collection *ico;
union content_msg_data msg_data;
const char *data;
unsigned long size;
char title[100];
/* set the ico data */
ico = c->data.ico.ico;
data = content__get_source_data(c, &size);
/* analyse the ico */
res = ico_analyse(ico, size, (unsigned char *) data);
switch (res) {
case BMP_OK:
break;
case BMP_INSUFFICIENT_MEMORY:
msg_data.error = messages_get("NoMemory");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
case BMP_INSUFFICIENT_DATA:
case BMP_DATA_ERROR:
msg_data.error = messages_get("BadICO");
content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
return false;
}
/* Store our content width and description */
c->width = ico->width;
c->height = ico->height;
snprintf(title, sizeof(title), messages_get("ICOTitle"),
c->width, c->height, size);
content__set_title(c, title);
c->size += (ico->width * ico->height * 4) + 16 + 44;
/* exit as a success */
bmp = ico_find(c->data.ico.ico, 255, 255);
assert(bmp);
c->bitmap = bmp->bitmap;
bitmap_modified(c->bitmap);
c->status = CONTENT_STATUS_DONE;
/* Done: update status bar */
content_set_status(c, "");
return true;
}
bool nsico_redraw(struct content *c, int x, int y,
int width, int height,
int clip_x0, int clip_y0, int clip_x1, int clip_y1,
float scale, colour background_colour)
{
struct bmp_image *bmp = ico_find(c->data.ico.ico, width, height);
if (!bmp->decoded)
if (bmp_decode(bmp) != BMP_OK)
return false;
c->bitmap = bmp->bitmap;
return plot.bitmap(x, y, width, height, c->bitmap,
background_colour, BITMAPF_NONE);
}
/** sets the bitmap for an ico according to the dimensions */
bool nsico_set_bitmap_from_size(hlcache_handle *h, int width, int height)
{
struct content *c = hlcache_handle_get_content(h);
struct bmp_image *bmp;
assert(c != NULL);
bmp = ico_find(c->data.ico.ico, width, height);
if (bmp == NULL)
return false;
if ((bmp->decoded == false) && (bmp_decode(bmp) != BMP_OK))
return false;
c->bitmap = bmp->bitmap;
return true;
}
bool nsico_redraw_tiled(struct content *c, int x, int y,
int width, int height,
int clip_x0, int clip_y0, int clip_x1, int clip_y1,
float scale, colour background_colour,
bool repeat_x, bool repeat_y)
{
struct bmp_image *bmp = ico_find(c->data.ico.ico, width, height);
bitmap_flags_t flags = BITMAPF_NONE;
if (!bmp->decoded)
if (bmp_decode(bmp) != BMP_OK)
return false;
c->bitmap = bmp->bitmap;
if (repeat_x)
flags |= BITMAPF_REPEAT_X;
if (repeat_y)
flags |= BITMAPF_REPEAT_Y;
return plot.bitmap(x, y, width, height, c->bitmap, background_colour, flags);
}
void nsico_destroy(struct content *c)
{
ico_finalise(c->data.ico.ico);
free(c->data.ico.ico);
}
bool nsico_clone(const struct content *old, struct content *new_content)
{
/* Simply replay creation and conversion */
if (nsico_create(new_content, NULL) == false)
return false;
if (old->status == CONTENT_STATUS_READY ||
old->status == CONTENT_STATUS_DONE) {
if (nsico_convert(new_content) == false)
return false;
}
return true;
}
#endif