Statistics
| Revision:

root / src / colorlabel.c @ 1

History | View | Annotate | Download (9.19 KB)

1
/*
2
 * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
3
 * Copyright (C) 2001-2004 Hiroyuki Yamamoto & The Sylpheed Claws Team
4
 *
5
 * This program is free software; you can redistribute it and/or modify
6
 * it under the terms of the GNU General Public License as published by
7
 * the Free Software Foundation; either version 2 of the License, or
8
 * (at your option) any later version.
9
 *
10
 * This program is distributed in the hope that it will be useful,
11
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13
 * GNU General Public License for more details.
14
 *
15
 * You should have received a copy of the GNU General Public License
16
 * along with this program; if not, write to the Free Software
17
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
18
 */
19

    
20
/* (alfons) - based on a contribution by Satoshi Nagayasu; revised for colorful 
21
 * menu and more Sylpheed integration. The idea to put the code in a separate
22
 * file is just that it make it easier to allow "user changeable" label colors.
23
 */
24

    
25
#include "defs.h"
26

    
27
#include <glib.h>
28
#include <gdk/gdkx.h>
29
#include <gtk/gtkwidget.h>
30
#include <gtk/gtkpixmap.h>
31
#include <gtk/gtkmenu.h>
32
#include <gtk/gtkcheckmenuitem.h>
33
#include <gtk/gtklabel.h>
34
#include <gtk/gtkmenuitem.h>
35
#include <gtk/gtkalignment.h>
36
#include <gtk/gtkhbox.h>
37
#include <gtk/gtkwindow.h>
38
#include <gtk/gtkdrawingarea.h>
39

    
40
#include "intl.h"
41
#include "colorlabel.h"
42
#include "gtkutils.h"
43
#include "utils.h"
44

    
45
static gchar *labels[] = {
46
        N_("Orange"),
47
        N_("Red") ,
48
        N_("Pink"),
49
        N_("Sky blue"),
50
        N_("Blue"),
51
        N_("Green"),
52
        N_("Brown")
53
};
54

    
55
typedef enum LabelColorChangeFlags_ {
56
        LCCF_COLOR = 1 << 0,
57
        LCCF_LABEL = 1 << 1,
58
        LCCF_ALL   = LCCF_COLOR | LCCF_LABEL
59
} LabelColorChangeFlags;
60

    
61
/* XXX: if you add colors, make sure you also check the procmsg.h.
62
 * color indices are stored as 3 bits; that explains the max. of 7 colors */
63
static struct 
64
{
65
        LabelColorChangeFlags        changed; 
66
        GdkColor                color;
67

    
68
        /* XXX: note that the label member is supposed to be dynamically 
69
         * allocated and fffreed */
70
        gchar                        *label;
71
        GtkWidget                *widget;
72
} label_colors[] = {
73
        { LCCF_ALL, { 0, 0xffff, (0x99 << 8), 0x0 },                NULL, NULL },
74
        { LCCF_ALL, { 0, 0xffff, 0, 0 },                        NULL, NULL },
75
        { LCCF_ALL, { 0, 0xffff, (0x66 << 8), 0xffff },                NULL, NULL },
76
        { LCCF_ALL, { 0, 0x0, (0xcc << 8), 0xffff },                NULL, NULL },
77
        { LCCF_ALL, { 0, 0x0, 0x0, 0xffff },                        NULL, NULL },
78
        { LCCF_ALL, { 0, 0x0, 0x99 << 8, 0x0 },                        NULL, NULL },
79
        { LCCF_ALL, { 0, 0x66 << 8, 0x33 << 8, 0x33 << 8 },        NULL, NULL }
80
};
81

    
82
#define LABEL_COLOR_WIDTH        28
83
#define LABEL_COLOR_HEIGHT        16
84

    
85
#define LABEL_COLORS_ELEMS (sizeof label_colors / sizeof label_colors[0])
86

    
87
#define G_RETURN_VAL_IF_INVALID_COLOR(color, val) \
88
        g_return_val_if_fail((color) >= 0 && (color) < LABEL_COLORS_ELEMS, (val))
89

    
90
static void colorlabel_recreate        (gint);
91
static void colorlabel_recreate_label  (gint);
92

    
93
gint colorlabel_get_color_count(void)
94
{
95
        return LABEL_COLORS_ELEMS;
96
}
97

    
98
GdkColor colorlabel_get_color(gint color_index)
99
{
100
        GdkColor invalid = { 0 };
101

    
102
        G_RETURN_VAL_IF_INVALID_COLOR(color_index, invalid);
103

    
104
        return label_colors[color_index].color;
105
}
106

    
107
gchar *colorlabel_get_color_text(gint color_index)
108
{
109
        G_RETURN_VAL_IF_INVALID_COLOR(color_index, NULL);
110

    
111
        colorlabel_recreate_label(color_index);
112
        return label_colors[color_index].label;
113
}
114

    
115
static gboolean colorlabel_drawing_area_expose_event_cb
116
        (GtkWidget *widget, GdkEventExpose *expose, gpointer data)
117
{
118
        GdkDrawable *drawable = widget->window;
119
        gulong c = (gulong) GPOINTER_TO_INT(data);
120
        GdkColor color;
121
        GdkGC *gc;
122

    
123
        color.red   = ((c >> 16UL) & 0xFFUL) << 8UL;
124
        color.green = ((c >>  8UL) & 0xFFUL) << 8UL;
125
        color.blue  = ((c)         & 0xFFUL) << 8UL;
126

    
127
        gdk_colormap_alloc_color(gtk_widget_get_colormap(widget), &color, FALSE, TRUE);
128

    
129
        gc = gdk_gc_new(drawable);
130

    
131
        gdk_gc_set_foreground(gc, &color);
132
        gdk_draw_rectangle(drawable, gc,
133
                           TRUE, 0, 0, widget->allocation.width - 1,
134
                           widget->allocation.height - 1);
135
        gdk_draw_rectangle(drawable, widget->style->black_gc,
136
                           FALSE, 0, 0, widget->allocation.width - 1,
137
                           widget->allocation.height - 1);
138

    
139
        gdk_gc_unref(gc);                           
140

    
141
        return FALSE;
142
}
143

    
144
static GtkWidget *colorlabel_create_color_widget(GdkColor color)
145
{
146
        GtkWidget *widget;
147

    
148
        widget = gtk_drawing_area_new();
149
        gtk_drawing_area_size(GTK_DRAWING_AREA(widget),
150
                              LABEL_COLOR_WIDTH - 2, LABEL_COLOR_HEIGHT - 4);
151

    
152
#define CL(x)                (((gulong) (x) >> (gulong) 8) & 0xFFUL)        
153
#define CR(r, g, b)        ((CL(r) << (gulong) 16) | \
154
                         (CL(g) << (gulong)  8) | \
155
                         (CL(b)))
156

    
157
        g_signal_connect(G_OBJECT(widget), "expose_event", 
158
                         G_CALLBACK(colorlabel_drawing_area_expose_event_cb),
159
                         GINT_TO_POINTER
160
                                ((gint)CR(color.red, color.green, color.blue)));
161

    
162
        return widget;
163
}
164

    
165
/* XXX: this function to check if menus with colors and labels should
166
 * be recreated */
167
gboolean colorlabel_changed(void)
168
{
169
        gint n;
170

    
171
        for (n = 0; n < LABEL_COLORS_ELEMS; n++) {
172
                if (label_colors[n].changed) 
173
                        return TRUE;
174
        }
175

    
176
        return FALSE;
177
}
178

    
179
/* XXX: colorlabel_recreate_XXX are there to make sure everything
180
 * is initialized ok, without having to call a global _xxx_init_
181
 * function */
182
static void colorlabel_recreate_color(gint color)
183
{
184
        GtkWidget *widget;
185

    
186
        if (!(label_colors[color].changed & LCCF_COLOR))
187
                return;
188

    
189
        widget = colorlabel_create_color_widget(label_colors[color].color);
190
        g_return_if_fail(widget);
191

    
192
        if (label_colors[color].widget) 
193
                gtk_widget_destroy(label_colors[color].widget);
194

    
195
        label_colors[color].widget = widget;                
196
        label_colors[color].changed &= ~LCCF_COLOR;
197
}
198

    
199
static void colorlabel_recreate_label(gint color)
200
{
201
        if (!label_colors[color].changed & LCCF_LABEL)
202
                return;
203

    
204
        if (label_colors[color].label == NULL) 
205
                label_colors[color].label = g_strdup(gettext(labels[color]));
206

    
207
        label_colors[color].changed &= ~LCCF_LABEL;
208
}
209

    
210
/* XXX: call this function everytime when you're doing important
211
 * stuff with the label_colors[] array */
212
static void colorlabel_recreate(gint color)
213
{
214
        colorlabel_recreate_label(color);
215
        colorlabel_recreate_color(color);
216
}
217

    
218
static void colorlabel_recreate_all(void)
219
{
220
        gint n;
221

    
222
        for ( n = 0; n < LABEL_COLORS_ELEMS; n++) 
223
                colorlabel_recreate(n);
224
}
225

    
226
/* colorlabel_create_check_color_menu_item() - creates a color
227
 * menu item with a check box */
228
GtkWidget *colorlabel_create_check_color_menu_item(gint color_index)
229
{
230
        GtkWidget *label; 
231
        GtkWidget *hbox; 
232
        GtkWidget *align; 
233
        GtkWidget *item;
234

    
235
        G_RETURN_VAL_IF_INVALID_COLOR(color_index, NULL);
236

    
237
        item = gtk_check_menu_item_new();
238

    
239
        colorlabel_recreate(color_index);
240

    
241
        /* XXX: gnome-core::panel::menu.c is a great example of
242
         * how to create pixmap menus */
243
        label = gtk_label_new(label_colors[color_index].label);
244

    
245
        gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
246
        gtk_widget_show(label);
247
        hbox = gtk_hbox_new(FALSE, 0);
248
        gtk_widget_show(hbox);
249
        gtk_container_add(GTK_CONTAINER(item), hbox);
250

    
251
        align = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
252
        gtk_widget_show(align);
253
        gtk_container_set_border_width(GTK_CONTAINER(align), 1);
254

    
255
        gtk_container_add(GTK_CONTAINER(align), label_colors[color_index].widget);
256
        gtk_widget_show(label_colors[color_index].widget);
257
        gtk_widget_set_size_request
258
                (align, LABEL_COLOR_WIDTH, LABEL_COLOR_HEIGHT);
259

    
260
        gtk_box_pack_start(GTK_BOX(hbox), align, FALSE, FALSE, 0);
261
        gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 4);
262

    
263
        return item;
264
}
265

    
266
/* colorlabel_create_color_menu() - creates a color menu without 
267
 * checkitems, probably for use in combo items */
268
GtkWidget *colorlabel_create_color_menu(void)
269
{
270
        GtkWidget *label; 
271
        GtkWidget *hbox; 
272
        GtkWidget *align; 
273
        GtkWidget *item;
274
        GtkWidget *menu;
275
        gint i;
276

    
277
        colorlabel_recreate_all();
278

    
279
        /* create the menu items. each item has its color code attached */
280
        menu = gtk_menu_new();
281
        g_object_set_data(G_OBJECT(menu), "label_color_menu", menu);
282

    
283
#if 0
284
        item = gtk_menu_item_new_with_label(_("None"));
285
        gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
286
        g_object_set_data(G_OBJECT(item), "color", GUINT_TO_POINTER(0));
287
        gtk_widget_show(item);
288
#endif
289

    
290
        /* and the color items */
291
        for (i = 0; i < LABEL_COLORS_ELEMS; i++) {
292
                GtkWidget *widget = colorlabel_create_color_widget(label_colors[i].color);
293

    
294
                item  = gtk_menu_item_new();
295
                g_object_set_data(G_OBJECT(item), "color",
296
                                  GUINT_TO_POINTER(i + 1));
297

    
298
                label = gtk_label_new(label_colors[i].label);
299
                
300
                gtk_misc_set_alignment(GTK_MISC(label), 0.0, 0.5);
301
                gtk_widget_show(label);
302
                hbox = gtk_hbox_new(FALSE, 0);
303
                gtk_widget_show(hbox);
304
                gtk_container_add(GTK_CONTAINER(item), hbox);
305

    
306
                align = gtk_alignment_new(0.5, 0.5, 0.0, 0.0);
307
                gtk_widget_show(align);
308
                gtk_container_set_border_width(GTK_CONTAINER(align), 1);
309

    
310
                gtk_container_add(GTK_CONTAINER(align), widget);
311
                gtk_widget_show(widget);
312
                gtk_widget_set_size_request
313
                        (align, LABEL_COLOR_WIDTH, LABEL_COLOR_HEIGHT);
314

    
315
                gtk_box_pack_start(GTK_BOX(hbox), align, FALSE, FALSE, 0);
316
                gtk_box_pack_start(GTK_BOX(hbox), label, FALSE, FALSE, 4);
317
                
318
                gtk_menu_shell_append(GTK_MENU_SHELL(menu), item);
319
                gtk_widget_show(item);
320
        }
321

    
322
        gtk_widget_show(menu);
323

    
324
        return menu;
325
}
326

    
327
guint colorlabel_get_color_menu_active_item(GtkWidget *menu)
328
{
329
        GtkWidget *menuitem;
330
        guint color;
331

    
332
        g_return_val_if_fail
333
                (g_object_get_data(G_OBJECT(menu), "label_color_menu"), 0);
334
        menuitem = gtk_menu_get_active(GTK_MENU(menu));
335
        color = GPOINTER_TO_UINT
336
                (g_object_get_data(G_OBJECT(menuitem), "color"));
337
        return color;
338
}