src/headerview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2003 Hiroyuki Yamamoto
   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 #ifdef HAVE_CONFIG_H
  21 #  include "config.h"
  22 #endif
  23
  24 #include "defs.h"
  25
  26 #include <glib.h>
  27 #include <gtk/gtkwidget.h>
  28 #include <gtk/gtkstyle.h>
  29 #include <gtk/gtkscrolledwindow.h>
  30 #include <gtk/gtkhbox.h>
  31 #include <gtk/gtkvbox.h>
  32 #include <gtk/gtklabel.h>
  33 #include <gtk/gtkpixmap.h>
  34 #include <stdio.h>
  35 #include <string.h>
  36 #include <time.h>
  37
  38 #if HAVE_LIBCOMPFACE
  39 #  include <compface.h>
  40 #endif
  41
  42 #include "intl.h"
  43 #include "headerview.h"
  44 #include "prefs_common.h"
  45 #include "codeconv.h"
  46 #include "gtkutils.h"
  47 #include "utils.h"
  48
  49 static GdkFont *boldfont;
  50
  51 #define TR(str) (prefs_common.trans_hdr ? gettext(str) : str)
  52
  53 #if 0
  54         _("From:");
  55         _("To:");
  56         _("Newsgroups:");
  57         _("Subject:");
  58 #endif
  59
  60 #if HAVE_LIBCOMPFACE
  61 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  62
  63 static gchar *xpm_xface[XPM_XFACE_HEIGHT];
  64
  65 static void headerview_show_xface       (HeaderView     *headerview,
  66                                          MsgInfo        *msginfo);
  67 static gint create_xpm_from_xface       (gchar          *xpm[],
  68                                          const gchar    *xface);
  69 #endif
  70
  71 HeaderView *headerview_create(void)
  72 {
  73         HeaderView *headerview;
  74         GtkWidget *hbox;
  75         GtkWidget *vbox;
  76         GtkWidget *hbox1;
  77         GtkWidget *hbox2;
  78         GtkWidget *from_header_label;
  79         GtkWidget *from_body_label;
  80         GtkWidget *to_header_label;
  81         GtkWidget *to_body_label;
  82         GtkWidget *ng_header_label;
  83         GtkWidget *ng_body_label;
  84         GtkWidget *subject_header_label;
  85         GtkWidget *subject_body_label;
  86
  87         debug_print("Creating header view...\n");
  88         headerview = g_new0(HeaderView, 1);
  89
  90         hbox = gtk_hbox_new(FALSE, 0);
  91         gtk_container_set_border_width(GTK_CONTAINER(hbox), 2);
  92         vbox = gtk_vbox_new(FALSE, 0);
  93         gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);
  94
  95         hbox1 = gtk_hbox_new(FALSE, 4);
  96         gtk_box_pack_start(GTK_BOX(vbox), hbox1, FALSE, FALSE, 0);
  97         hbox2 = gtk_hbox_new(FALSE, 4);
  98         gtk_box_pack_start(GTK_BOX(vbox), hbox2, FALSE, FALSE, 0);
  99
 100         from_header_label    = gtk_label_new(TR("From:"));
 101         from_body_label      = gtk_label_new("");
 102         to_header_label      = gtk_label_new(TR("To:"));
 103         to_body_label        = gtk_label_new("");
 104         ng_header_label      = gtk_label_new(TR("Newsgroups:"));
 105         ng_body_label        = gtk_label_new("");
 106         subject_header_label = gtk_label_new(TR("Subject:"));
 107         subject_body_label   = gtk_label_new("");
 108
 109         gtk_box_pack_start(GTK_BOX(hbox1), from_header_label, FALSE, FALSE, 0);
 110         gtk_box_pack_start(GTK_BOX(hbox1), from_body_label, FALSE, FALSE, 0);
 111         gtk_box_pack_start(GTK_BOX(hbox1), to_header_label, FALSE, FALSE, 0);
 112         gtk_box_pack_start(GTK_BOX(hbox1), to_body_label, FALSE, FALSE, 0);
 113         gtk_box_pack_start(GTK_BOX(hbox1), ng_header_label, FALSE, FALSE, 0);
 114         gtk_box_pack_start(GTK_BOX(hbox1), ng_body_label, FALSE, FALSE, 0);
 115         gtk_box_pack_start(GTK_BOX(hbox2), subject_header_label, FALSE, FALSE, 0);
 116         gtk_box_pack_start(GTK_BOX(hbox2), subject_body_label, FALSE, FALSE, 0);
 117
 118         headerview->hbox = hbox;
 119         headerview->from_header_label    = from_header_label;
 120         headerview->from_body_label      = from_body_label;
 121         headerview->to_header_label      = to_header_label;
 122         headerview->to_body_label        = to_body_label;
 123         headerview->ng_header_label      = ng_header_label;
 124         headerview->ng_body_label        = ng_body_label;
 125         headerview->subject_header_label = subject_header_label;
 126         headerview->subject_body_label   = subject_body_label;
 127         headerview->image = NULL;
 128
 129         gtk_widget_show_all(hbox);
 130
 131         return headerview;
 132 }
 133
 134 void headerview_init(HeaderView *headerview)
 135 {
 136         if (!boldfont)
 137                 boldfont = gtkut_font_load(BOLD_FONT);
 138
 139 #define SET_FONT_STYLE(wid) \
 140 { \
 141         GtkStyle *style; \
 142  \
 143         style = gtk_style_copy(gtk_widget_get_style(headerview->wid)); \
 144         if (boldfont) \
 145                 style->font = boldfont; \
 146         gtk_widget_set_style(headerview->wid, style); \
 147 }
 148
 149         SET_FONT_STYLE(from_header_label);
 150         SET_FONT_STYLE(to_header_label);
 151         SET_FONT_STYLE(ng_header_label);
 152         SET_FONT_STYLE(subject_header_label);
 153
 154         headerview_clear(headerview);
 155         headerview_set_visibility(headerview, prefs_common.display_header_pane);
 156
 157 #if HAVE_LIBCOMPFACE
 158         {
 159                 gint i;
 160
 161                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
 162                         xpm_xface[i] = g_malloc(WIDTH + 1);
 163                         *xpm_xface[i] = '\0';
 164                 }
 165         }
 166 #endif
 167 }
 168
 169 void headerview_show(HeaderView *headerview, MsgInfo *msginfo)
 170 {
 171         gchar *str;
 172
 173         headerview_clear(headerview);
 174
 175         if (msginfo->from) {
 176                 Xstrdup_a(str, msginfo->from, return);
 177                 conv_unreadable_locale(str);
 178         } else
 179                 str = NULL;
 180         gtk_label_set_text(GTK_LABEL(headerview->from_body_label),
 181                            str ? str : _("(No From)"));
 182         if (msginfo->to) {
 183                 Xstrdup_a(str, msginfo->to, return);
 184                 conv_unreadable_locale(str);
 185                 gtk_label_set_text(GTK_LABEL(headerview->to_body_label), str);
 186                 gtk_widget_show(headerview->to_header_label);
 187                 gtk_widget_show(headerview->to_body_label);
 188         }
 189         if (msginfo->newsgroups) {
 190                 Xstrdup_a(str, msginfo->newsgroups, return);
 191                 conv_unreadable_locale(str);
 192                 gtk_label_set_text(GTK_LABEL(headerview->ng_body_label), str);
 193                 gtk_widget_show(headerview->ng_header_label);
 194                 gtk_widget_show(headerview->ng_body_label);
 195         }
 196         if (msginfo->subject) {
 197                 Xstrdup_a(str, msginfo->subject, return);
 198                 conv_unreadable_locale(str);
 199         } else
 200                 str = NULL;
 201         gtk_label_set_text(GTK_LABEL(headerview->subject_body_label),
 202                            str ? str : _("(No Subject)"));
 203
 204 #if HAVE_LIBCOMPFACE
 205         headerview_show_xface(headerview, msginfo);
 206 #endif
 207 }
 208
 209 #if HAVE_LIBCOMPFACE
 210 static void headerview_show_xface(HeaderView *headerview, MsgInfo *msginfo)
 211 {
 212         gchar xface[2048];
 213         GdkPixmap *pixmap;
 214         GdkBitmap *mask;
 215         GtkWidget *hbox = headerview->hbox;
 216
 217         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
 218                 if (headerview->image &&
 219                     GTK_WIDGET_VISIBLE(headerview->image)) {
 220                         gtk_widget_hide(headerview->image);
 221                         gtk_widget_queue_resize(hbox);
 222                 }
 223                 return;
 224         }
 225         if (!GTK_WIDGET_VISIBLE(headerview->hbox)) return;
 226
 227         strncpy(xface, msginfo->xface, sizeof(xface));
 228
 229         if (uncompface(xface) < 0) {
 230                 g_warning("uncompface failed\n");
 231                 if (headerview->image)
 232                         gtk_widget_hide(headerview->image);
 233                 return;
 234         }
 235
 236         create_xpm_from_xface(xpm_xface, xface);
 237
 238         pixmap = gdk_pixmap_create_from_xpm_d
 239                 (hbox->window, &mask, &hbox->style->white, xpm_xface);
 240
 241         if (!headerview->image) {
 242                 GtkWidget *image;
 243
 244                 image = gtk_pixmap_new(pixmap, mask);
 245                 gtk_box_pack_start(GTK_BOX(hbox), image, FALSE, FALSE, 0);
 246                 gtk_widget_show(image);
 247                 headerview->image = image;
 248         } else {
 249                 gtk_pixmap_set(GTK_PIXMAP(headerview->image), pixmap, mask);
 250                 gtk_widget_show(headerview->image);
 251         }
 252
 253         gdk_pixmap_unref(pixmap);
 254 }
 255 #endif
 256
 257 void headerview_clear(HeaderView *headerview)
 258 {
 259         gtk_label_set_text(GTK_LABEL(headerview->from_body_label), "");
 260         gtk_label_set_text(GTK_LABEL(headerview->to_body_label), "");
 261         gtk_label_set_text(GTK_LABEL(headerview->ng_body_label), "");
 262         gtk_label_set_text(GTK_LABEL(headerview->subject_body_label), "");
 263         gtk_widget_hide(headerview->to_header_label);
 264         gtk_widget_hide(headerview->to_body_label);
 265         gtk_widget_hide(headerview->ng_header_label);
 266         gtk_widget_hide(headerview->ng_body_label);
 267
 268         if (headerview->image && GTK_WIDGET_VISIBLE(headerview->image)) {
 269                 gtk_widget_hide(headerview->image);
 270                 gtk_widget_queue_resize(headerview->hbox);
 271         }
 272 }
 273
 274 void headerview_set_visibility(HeaderView *headerview, gboolean visibility)
 275 {
 276         if (visibility)
 277                 gtk_widget_show(headerview->hbox);
 278         else
 279                 gtk_widget_hide(headerview->hbox);
 280 }
 281
 282 void headerview_destroy(HeaderView *headerview)
 283 {
 284         g_free(headerview);
 285 }
 286
 287 #if HAVE_LIBCOMPFACE
 288 static gint create_xpm_from_xface(gchar *xpm[], const gchar *xface)
 289 {
 290         static gchar *bit_pattern[] = {
 291                 "....",
 292                 "...#",
 293                 "..#.",
 294                 "..##",
 295                 ".#..",
 296                 ".#.#",
 297                 ".##.",
 298                 ".###",
 299                 "#...",
 300                 "#..#",
 301                 "#.#.",
 302                 "#.##",
 303                 "##..",
 304                 "##.#",
 305                 "###.",
 306                 "####"
 307         };
 308
 309         static gchar *xface_header = "48 48 2 1";
 310         static gchar *xface_black  = "# c #000000";
 311         static gchar *xface_white  = ". c #ffffff";
 312
 313         gint i, line = 0;
 314         const guchar *p;
 315         gchar buf[WIDTH * 4 + 1];  /* 4 = strlen("0x0000") */
 316
 317         p = xface;
 318
 319         strcpy(xpm[line++], xface_header);
 320         strcpy(xpm[line++], xface_black);
 321         strcpy(xpm[line++], xface_white);
 322
 323         for (i = 0; i < HEIGHT; i++) {
 324                 gint col;
 325
 326                 buf[0] = '\0';
 327
 328                 for (col = 0; col < 3; col++) {
 329                         gint figure;
 330
 331                         p += 2;  /* skip '0x' */
 332
 333                         for (figure = 0; figure < 4; figure++) {
 334                                 gint n = 0;
 335
 336                                 if ('0' <= *p && *p <= '9') {
 337                                         n = *p - '0';
 338                                 } else if ('a' <= *p && *p <= 'f') {
 339                                         n = *p - 'a' + 10;
 340                                 } else if ('A' <= *p && *p <= 'F') {
 341                                         n = *p - 'A' + 10;
 342                                 }
 343
 344                                 strcat(buf, bit_pattern[n]);
 345                                 p++;  /* skip ',' */
 346                         }
 347
 348                         p++;  /* skip '\n' */
 349                 }
 350
 351                 strcpy(xpm[line++], buf);
 352                 p++;
 353         }
 354
 355         return 0;
 356 }
 357 #endif