netsurf/riscos/draw.c
James Bursa fba46de9cb [project @ 2004-03-11 02:19:13 by bursa]
Add source_data to content structure and remove equivalents from individual contents.

svn path=/import/netsurf/; revision=606
2004-03-11 02:19:14 +00:00

89 lines
2.6 KiB
C

/*
* This file is part of NetSurf, http://netsurf.sourceforge.net/
* Licensed under the GNU General Public License,
* http://www.opensource.org/licenses/gpl-license
* Copyright 2003 John M Bell <jmb202@ecs.soton.ac.uk>
*/
#include <assert.h>
#include <string.h>
#include <stdlib.h>
#include "netsurf/utils/config.h"
#include "netsurf/content/content.h"
#include "netsurf/riscos/draw.h"
#include "netsurf/utils/utils.h"
#include "netsurf/utils/messages.h"
#include "netsurf/utils/log.h"
#include "oslib/drawfile.h"
#ifdef WITH_DRAW
int draw_convert(struct content *c, unsigned int width, unsigned int height)
{
os_error *error;
os_trfm *matrix = xcalloc(1, sizeof(os_trfm));
os_box *bbox = xcalloc(1, sizeof(os_box));
/* Full size image (1:1) */
matrix->entries[0][0] = 1 << 16;
matrix->entries[0][1] = 0;
matrix->entries[1][0] = 0;
matrix->entries[1][1] = 1 << 16;
matrix->entries[2][0] = 0;
matrix->entries[2][1] = 0;
/* BBox contents in Draw units (256*OS unit) */
error = xdrawfile_bbox(0, (drawfile_diagram*)(c->source_data),
(int)c->source_size, matrix, bbox);
if (error) {
LOG(("error: %s", error->errmess));
xfree(matrix);
xfree(bbox);
return 1;
}
/* c->width & c->height stored as (OS units/2)
=> divide by 512 to convert from draw units */
c->width = ((bbox->x1 - bbox->x0) / 512);
c->height = ((bbox->y1 - bbox->y0) / 512);
c->data.draw.x0 = bbox->x0 / 2;
c->data.draw.y0 = bbox->y0 / 2;
c->title = xcalloc(100, 1);
sprintf(c->title, messages_get("DrawTitle"), c->width,
c->height, c->source_size);
c->status = CONTENT_STATUS_DONE;
xfree(matrix);
xfree(bbox);
return 0;
}
void draw_destroy(struct content *c)
{
xfree(c->title);
}
void draw_redraw(struct content *c, long x, long y,
unsigned long width, unsigned long height,
long clip_x0, long clip_y0, long clip_x1, long clip_y1,
float scale)
{
os_trfm matrix;
/* Scaled image. Transform units (65536*OS units) */
matrix.entries[0][0] = ((width*65536) / (c->width*2));
matrix.entries[0][1] = 0;
matrix.entries[1][0] = 0;
matrix.entries[1][1] = ((height*65536) / (c->height*2));
/* Draw units. (x,y) = bottom left */
matrix.entries[2][0] = x * 256 - c->data.draw.x0 * width / c->width;
matrix.entries[2][1] = (y - height) * 256 -
c->data.draw.y0 * height / c->height;
xdrawfile_render(0, (drawfile_diagram*)(c->source_data),
(int)c->source_size, &matrix, 0, 0);
}
#endif