mirror of
https://github.com/netsurf-browser/netsurf
synced 2024-12-18 18:23:25 +03:00
168 lines
3.8 KiB
C
168 lines
3.8 KiB
C
/*
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* Copyright 2007-2008 James Bursa <bursa@users.sourceforge.net>
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*
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* This file is part of NetSurf, http://www.netsurf-browser.org/
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*
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* NetSurf is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* NetSurf is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/** \file
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* Content for image/svg (implementation).
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*/
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#include "utils/config.h"
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#ifdef WITH_NS_SVG
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#include <assert.h>
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#include <string.h>
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#include <svgtiny.h>
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#include "content/content_protected.h"
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#include "css/css.h"
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#include "desktop/plotters.h"
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#include "image/svg.h"
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#include "utils/messages.h"
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#include "utils/utils.h"
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/**
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* Create a CONTENT_SVG.
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*/
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bool svg_create(struct content *c, const struct http_parameter *params)
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{
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union content_msg_data msg_data;
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c->data.svg.diagram = svgtiny_create();
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if (!c->data.svg.diagram)
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goto no_memory;
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return true;
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no_memory:
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msg_data.error = messages_get("NoMemory");
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content_broadcast(c, CONTENT_MSG_ERROR, msg_data);
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return false;
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}
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/**
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* Convert a CONTENT_SVG for display.
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*/
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bool svg_convert(struct content *c, int w, int h)
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{
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const char *source_data;
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unsigned long source_size;
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assert(c->data.svg.diagram);
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source_data = content__get_source_data(c, &source_size);
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svgtiny_parse(c->data.svg.diagram, source_data, source_size,
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content__get_url(c), w, h);
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c->width = c->data.svg.diagram->width;
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c->height = c->data.svg.diagram->height;
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/*c->title = malloc(100);
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if (c->title)
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snprintf(c->title, 100, messages_get("svgTitle"),
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width, height, c->source_size);*/
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//c->size += ?;
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c->status = CONTENT_STATUS_DONE;
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/* Done: update status bar */
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content_set_status(c, "");
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return true;
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}
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/**
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* Redraw a CONTENT_SVG.
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*/
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bool svg_redraw(struct content *c, int x, int y,
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int width, int height,
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int clip_x0, int clip_y0, int clip_x1, int clip_y1,
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float scale, colour background_colour)
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{
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float transform[6];
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struct svgtiny_diagram *diagram = c->data.svg.diagram;
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bool ok;
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int px, py;
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unsigned int i;
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plot_font_style_t fstyle = *plot_style_font;
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assert(diagram);
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transform[0] = (float) width / (float) c->width;
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transform[1] = 0;
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transform[2] = 0;
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transform[3] = (float) height / (float) c->height;
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transform[4] = x;
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transform[5] = y;
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#define BGR(c) ((c) == svgtiny_TRANSPARENT ? NS_TRANSPARENT : ((svgtiny_RED((c))) | (svgtiny_GREEN((c)) << 8) | (svgtiny_BLUE((c)) << 16)))
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for (i = 0; i != diagram->shape_count; i++) {
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if (diagram->shape[i].path) {
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ok = plot.path(diagram->shape[i].path,
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diagram->shape[i].path_length,
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BGR(diagram->shape[i].fill),
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diagram->shape[i].stroke_width,
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BGR(diagram->shape[i].stroke),
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transform);
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if (!ok)
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return false;
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} else if (diagram->shape[i].text) {
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px = transform[0] * diagram->shape[i].text_x +
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transform[2] * diagram->shape[i].text_y +
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transform[4];
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py = transform[1] * diagram->shape[i].text_x +
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transform[3] * diagram->shape[i].text_y +
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transform[5];
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fstyle.background = 0xffffff;
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fstyle.foreground = 0x000000;
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ok = plot.text(px, py,
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diagram->shape[i].text,
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strlen(diagram->shape[i].text),
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&fstyle);
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if (!ok)
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return false;
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}
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}
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#undef BGR
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return true;
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}
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/**
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* Destroy a CONTENT_SVG and free all resources it owns.
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*/
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void svg_destroy(struct content *c)
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{
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if (c->data.svg.diagram)
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svgtiny_free(c->data.svg.diagram);
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}
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#endif /* WITH_NS_SVG */
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