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
|
/*
* objects.c
*
* Colloquium - A tiny presentation program
*
* Copyright (c) 2011 Thomas White <taw@bitwiz.org.uk>
*
* 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 <http://www.gnu.org/licenses/>.
*
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include "presentation.h"
#include "objects.h"
#include "mainwindow.h"
struct object *new_object(enum objtype t, struct style *sty)
{
struct object *new;
new = calloc(1, sizeof(struct object));
if ( new == NULL ) return NULL;
new->type = t;
new->empty = 1;
new->parent = NULL;
new->style = sty;
return new;
}
void free_object(struct object *o)
{
if ( o->layout != NULL ) g_object_unref(o->layout);
if ( o->fontdesc != NULL ) pango_font_description_free(o->fontdesc);
free(o);
}
struct object *add_image_object(struct slide *s, double x, double y,
const char *filename,
double width, double height)
{
struct object *new;
new = new_object(IMAGE, NULL);
new->x = x; new->y = y;
new->bb_width = width;
new->bb_height = height;
if ( add_object_to_slide(s, new) ) {
free_object(new);
return NULL;
}
s->object_seq++;
return new;
}
void notify_style_update(struct presentation *p, struct style *sty)
{
int i;
int changed = 0;
for ( i=0; i<p->num_slides; i++ ) {
int j;
struct slide *s;
s = p->slides[i];
for ( j=0; j<p->slides[i]->num_objects; j++ ) {
if ( s->objects[j]->style != sty ) continue;
s->object_seq++;
if ( p->view_slide == s ) changed = 1;
break;
}
}
p->completely_empty = 0;
if ( changed ) notify_slide_update(p);
}
void delete_object(struct object *o)
{
remove_object_from_slide(o->parent, o);
free_object(o);
}
|