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