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
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
|
/* Icon View/Editing and Drag-and-Drop
*
* The GtkIconView widget supports Editing and Drag-and-Drop.
* This example also demonstrates using the generic GtkCellLayout
* interface to set up cell renderers in an icon view.
*/
#include <gtk/gtk.h>
#include <string.h>
#include "demo-common.h"
static GtkWidget *window = NULL;
enum
{
COL_TEXT,
NUM_COLS
};
static void
fill_store (GtkListStore *store)
{
GtkTreeIter iter;
const gchar *text[] = { "Red", "Green", "Blue", "Yellow" };
gint i;
/* First clear the store */
gtk_list_store_clear (store);
for (i = 0; i < 4; i++)
{
gtk_list_store_append (store, &iter);
gtk_list_store_set (store, &iter, COL_TEXT, text[i], -1);
}
}
static GtkListStore *
create_store (void)
{
GtkListStore *store;
store = gtk_list_store_new (NUM_COLS, G_TYPE_STRING);
return store;
}
static void
set_cell_color (GtkCellLayout *cell_layout,
GtkCellRenderer *cell,
GtkTreeModel *tree_model,
GtkTreeIter *iter,
gpointer data)
{
gchar *text;
GdkColor color;
guint32 pixel = 0;
GdkPixbuf *pixbuf;
gtk_tree_model_get (tree_model, iter, COL_TEXT, &text, -1);
if (gdk_color_parse (text, &color))
pixel =
(color.red >> 8) << 24 |
(color.green >> 8) << 16 |
(color.blue >> 8) << 8;
g_free (text);
pixbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, FALSE, 8, 24, 24);
gdk_pixbuf_fill (pixbuf, pixel);
g_object_set (cell, "pixbuf", pixbuf, NULL);
g_object_unref (pixbuf);
}
static void
edited (GtkCellRendererText *cell,
gchar *path_string,
gchar *text,
gpointer data)
{
GtkTreeModel *model;
GtkTreeIter iter;
GtkTreePath *path;
model = gtk_icon_view_get_model (GTK_ICON_VIEW (data));
path = gtk_tree_path_new_from_string (path_string);
gtk_tree_model_get_iter (model, &iter, path);
gtk_list_store_set (GTK_LIST_STORE (model), &iter,
COL_TEXT, text, -1);
gtk_tree_path_free (path);
}
GtkWidget *
do_iconview_edit (GtkWidget *do_widget)
{
if (!window)
{
GtkWidget *icon_view;
GtkListStore *store;
GtkCellRenderer *renderer;
window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
gtk_window_set_screen (GTK_WINDOW (window),
gtk_widget_get_screen (do_widget));
gtk_window_set_title (GTK_WINDOW (window), "Editing and Drag-and-Drop");
g_signal_connect (window, "destroy",
G_CALLBACK (gtk_widget_destroyed), &window);
store = create_store ();
fill_store (store);
icon_view = gtk_icon_view_new_with_model (GTK_TREE_MODEL (store));
g_object_unref (store);
gtk_icon_view_set_selection_mode (GTK_ICON_VIEW (icon_view),
GTK_SELECTION_SINGLE);
gtk_icon_view_set_orientation (GTK_ICON_VIEW (icon_view),
GTK_ORIENTATION_HORIZONTAL);
gtk_icon_view_set_columns (GTK_ICON_VIEW (icon_view), 2);
gtk_icon_view_set_reorderable (GTK_ICON_VIEW (icon_view), TRUE);
renderer = gtk_cell_renderer_pixbuf_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view),
renderer, TRUE);
gtk_cell_layout_set_cell_data_func (GTK_CELL_LAYOUT (icon_view),
renderer,
set_cell_color,
NULL, NULL);
renderer = gtk_cell_renderer_text_new ();
gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (icon_view),
renderer, TRUE);
g_object_set (renderer, "editable", TRUE, NULL);
g_signal_connect (renderer, "edited", G_CALLBACK (edited), icon_view);
gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (icon_view),
renderer,
"text", COL_TEXT,
NULL);
gtk_container_add (GTK_CONTAINER (window), icon_view);
}
if (!gtk_widget_get_visible (window))
gtk_widget_show_all (window);
else
{
gtk_widget_destroy (window);
window = NULL;
}
return window;
}
|
