1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
|
/*
* A quick hack to use the Cairo renderer to write out a file. This
* then makes 'save as...' PNG.
*
* Authors:
* Ted Gould <ted@gould.cx>
* Ulf Erikson <ulferikson@users.sf.net>
*
* Copyright (C) 2004-2006 Authors
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#ifdef HAVE_CAIRO_PDF
#include "cairo-png-out.h"
#include "cairo-render-context.h"
#include "cairo-renderer.h"
#include <print.h>
#include "extension/system.h"
#include "extension/print.h"
#include "extension/db.h"
#include "extension/output.h"
#include "display/nr-arena.h"
#include "display/nr-arena-item.h"
#include <libnr/n-art-bpath.h>
#include "display/curve.h"
#include "display/canvas-bpath.h"
#include "sp-item.h"
#include "style.h"
#include "sp-root.h"
#include "sp-shape.h"
#include "io/sys.h"
namespace Inkscape {
namespace Extension {
namespace Internal {
bool
CairoRendererOutput::check (Inkscape::Extension::Extension * module)
{
return TRUE;
}
static bool
png_render_document_to_file(SPDocument *doc, gchar const *filename)
{
CairoRenderer *renderer;
CairoRenderContext *ctx;
sp_document_ensure_up_to_date(doc);
/* Start */
/* Create new arena */
SPItem *base = SP_ITEM(sp_document_root(doc));
NRArena *arena = NRArena::create();
unsigned dkey = sp_item_display_key_new(1);
NRArenaItem *root = sp_item_invoke_show(base, arena, dkey, SP_ITEM_SHOW_DISPLAY);
/* Create renderer and context */
renderer = new CairoRenderer();
ctx = renderer->createContext();
/* Render document */
bool ret = renderer->setupDocument(ctx, doc);
if (ret) {
renderer->renderItem(ctx, base);
ctx->saveAsPng(filename);
ret = ctx->finish();
}
renderer->destroyContext(ctx);
/* Release arena */
sp_item_invoke_hide(base, dkey);
nr_arena_item_unref(root);
nr_object_unref((NRObject *) arena);
/* end */
delete renderer;
return ret;
}
/**
\brief This function calls the output module with the filename
\param mod unused
\param doc Document to be saved
\param uri Filename to save to (probably will end in .png)
*/
void
CairoRendererOutput::save (Inkscape::Extension::Output *mod, SPDocument *doc, const gchar *uri)
{
if (!png_render_document_to_file(doc, uri))
throw Inkscape::Extension::Output::save_failed();
return;
}
/**
\brief A function allocate a copy of this function.
This is the definition of Cairo PNG out. This function just
calls the extension system with the memory allocated XML that
describes the data.
*/
void
CairoRendererOutput::init (void)
{
Inkscape::Extension::build_from_mem(
"<inkscape-extension>\n"
"<name>Cairo PNG Output</name>\n"
"<id>org.inkscape.output.png.cairo</id>\n"
"<output>\n"
"<extension>.png</extension>\n"
"<mimetype>image/png</mimetype>\n"
"<filetypename>Cairo PNG (*.png)</filetypename>\n"
"<filetypetooltip>PNG File</filetypetooltip>\n"
"</output>\n"
"</inkscape-extension>", new CairoRendererOutput());
return;
}
} } } /* namespace Inkscape, Extension, Implementation */
#endif /* HAVE_CAIRO_PDF */
|
