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
|
/* GIMP - The GNU Image Manipulation Program
* Copyright (C) 1995 Spencer Kimball and Peter Mattis
*
* gimpviewrenderervectors.c
* Copyright (C) 2003 Michael Natterer <mitch@gimp.org>
* Simon Budig <simon@gimp.org>
*
* This program 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; either version 3 of the License, or
* (at your option) any later version.
*
* This program 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 <https://www.gnu.org/licenses/>.
*/
#include "config.h"
#include <gegl.h>
#include <gtk/gtk.h>
#include "libgimpmath/gimpmath.h"
#include "libgimpwidgets/gimpwidgets.h"
#include "widgets-types.h"
#include "core/gimpimage.h"
#include "core/gimpitem.h"
#include "vectors/gimpstroke.h"
#include "vectors/gimpvectors.h"
#include "gimpviewrenderervectors.h"
static void gimp_view_renderer_vectors_draw (GimpViewRenderer *renderer,
GtkWidget *widget,
cairo_t *cr,
gint available_width,
gint available_height);
G_DEFINE_TYPE (GimpViewRendererVectors, gimp_view_renderer_vectors,
GIMP_TYPE_VIEW_RENDERER)
#define parent_class gimp_view_renderer_vectors_parent_class
static void
gimp_view_renderer_vectors_class_init (GimpViewRendererVectorsClass *klass)
{
GimpViewRendererClass *renderer_class = GIMP_VIEW_RENDERER_CLASS (klass);
renderer_class->draw = gimp_view_renderer_vectors_draw;
}
static void
gimp_view_renderer_vectors_init (GimpViewRendererVectors *renderer)
{
}
static void
gimp_view_renderer_vectors_draw (GimpViewRenderer *renderer,
GtkWidget *widget,
cairo_t *cr,
gint available_width,
gint available_height)
{
GtkStyle *style = gtk_widget_get_style (widget);
GimpVectors *vectors = GIMP_VECTORS (renderer->viewable);
const GimpBezierDesc *desc;
gdk_cairo_set_source_color (cr, &style->white);
cairo_translate (cr,
(available_width - renderer->width) / 2,
(available_height - renderer->height) / 2);
cairo_rectangle (cr, 0, 0, renderer->width, renderer->height);
cairo_clip_preserve (cr);
cairo_fill (cr);
desc = gimp_vectors_get_bezier (vectors);
if (desc)
{
gdouble xscale;
gdouble yscale;
xscale = ((gdouble) renderer->width /
(gdouble) gimp_item_get_width (GIMP_ITEM (vectors)));
yscale = ((gdouble) renderer->height /
(gdouble) gimp_item_get_height (GIMP_ITEM (vectors)));
cairo_scale (cr, xscale, yscale);
/* determine line width */
xscale = yscale = 0.5;
cairo_device_to_user_distance (cr, &xscale, &yscale);
cairo_set_line_width (cr, MAX (xscale, yscale));
gdk_cairo_set_source_color (cr, &style->black);
cairo_append_path (cr, (cairo_path_t *) desc);
cairo_stroke (cr);
}
}
|
