src/headerview.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2006 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 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 <glib/gi18n.h>
  28 #include <gtk/gtkwidget.h>
  29 #include <gtk/gtkstyle.h>
  30 #include <gtk/gtkscrolledwindow.h>
  31 #include <gtk/gtkhbox.h>
  32 #include <gtk/gtkvbox.h>
  33 #include <gtk/gtklabel.h>
  34 #include <gtk/gtkimage.h>
  35 #include <stdio.h>
  36 #include <string.h>
  37 #include <time.h>
  38
  39 #if HAVE_LIBCOMPFACE
  40 #  include <compface.h>
  41 #endif
  42
  43 #include <gdk-pixbuf/gdk-pixbuf.h>
  44
  45 #include "headerview.h"
  46 #include "prefs_common.h"
  47 #include "codeconv.h"
  48 #include "gtkutils.h"
  49 #include "utils.h"
  50 #include "base64.h"
  51
  52 #define TR(str) (prefs_common.trans_hdr ? gettext(str) : str)
  53
  54 #if 0
  55         _("From:");
  56         _("To:");
  57         _("Newsgroups:");
  58         _("Subject:");
  59 #endif
  60
  61 #if HAVE_LIBCOMPFACE
  62 #define XPM_XFACE_HEIGHT        (HEIGHT + 3)  /* 3 = 1 header + 2 colors */
  63
  64 static gchar *xpm_xface[XPM_XFACE_HEIGHT];
  65
  66 static void headerview_show_xface       (HeaderView     *headerview,
  67                                          MsgInfo        *msginfo);
  68 #endif
  69
  70 static gint headerview_show_face        (HeaderView     *headerview,
  71                                          MsgInfo        *msginfo);
  72
  73 HeaderView *headerview_create(void)
  74 {
  75         HeaderView *headerview;
  76         GtkWidget *hbox;
  77         GtkWidget *vbox;
  78         GtkWidget *hbox1;
  79         GtkWidget *hbox2;
  80         GtkWidget *from_header_label;
  81         GtkWidget *from_body_label;
  82         GtkWidget *to_header_label;
  83         GtkWidget *to_body_label;
  84         GtkWidget *ng_header_label;
  85         GtkWidget *ng_body_label;
  86         GtkWidget *subject_header_label;
  87         GtkWidget *subject_body_label;
  88
  89         debug_print("Creating header view...\n");
  90         headerview = g_new0(HeaderView, 1);
  91
  92         hbox = gtk_hbox_new(FALSE, 0);
  93         gtk_container_set_border_width(GTK_CONTAINER(hbox), 2);
  94         vbox = gtk_vbox_new(FALSE, 2);
  95         gtk_box_pack_start(GTK_BOX(hbox), vbox, TRUE, TRUE, 0);
  96
  97         hbox1 = gtk_hbox_new(FALSE, 4);
  98         gtk_box_pack_start(GTK_BOX(vbox), hbox1, FALSE, FALSE, 0);
  99         hbox2 = gtk_hbox_new(FALSE, 4);
 100         gtk_box_pack_start(GTK_BOX(vbox), hbox2, FALSE, FALSE, 0);
 101
 102         from_header_label    = gtk_label_new(TR("From:"));
 103         from_body_label      = gtk_label_new("");
 104         to_header_label      = gtk_label_new(TR("To:"));
 105         to_body_label        = gtk_label_new("");
 106         ng_header_label      = gtk_label_new(TR("Newsgroups:"));
 107         ng_body_label        = gtk_label_new("");
 108         subject_header_label = gtk_label_new(TR("Subject:"));
 109         subject_body_label   = gtk_label_new("");
 110
 111         gtk_label_set_selectable(GTK_LABEL(from_body_label), TRUE);
 112         gtk_label_set_selectable(GTK_LABEL(to_body_label), TRUE);
 113         gtk_label_set_selectable(GTK_LABEL(ng_body_label), TRUE);
 114         gtk_label_set_selectable(GTK_LABEL(subject_body_label), TRUE);
 115
 116         GTK_WIDGET_UNSET_FLAGS(from_body_label, GTK_CAN_FOCUS);
 117         GTK_WIDGET_UNSET_FLAGS(to_body_label, GTK_CAN_FOCUS);
 118         GTK_WIDGET_UNSET_FLAGS(ng_body_label, GTK_CAN_FOCUS);
 119         GTK_WIDGET_UNSET_FLAGS(subject_body_label, GTK_CAN_FOCUS);
 120
 121         gtk_box_pack_start(GTK_BOX(hbox1), from_header_label, FALSE, FALSE, 0);
 122         gtk_box_pack_start(GTK_BOX(hbox1), from_body_label, FALSE, FALSE, 0);
 123         gtk_box_pack_start(GTK_BOX(hbox1), to_header_label, FALSE, FALSE, 0);
 124         gtk_box_pack_start(GTK_BOX(hbox1), to_body_label, TRUE, TRUE, 0);
 125         gtk_box_pack_start(GTK_BOX(hbox1), ng_header_label, FALSE, FALSE, 0);
 126         gtk_box_pack_start(GTK_BOX(hbox1), ng_body_label, TRUE, TRUE, 0);
 127         gtk_box_pack_start(GTK_BOX(hbox2), subject_header_label, FALSE, FALSE, 0);
 128         gtk_box_pack_start(GTK_BOX(hbox2), subject_body_label, TRUE, TRUE, 0);
 129
 130         gtk_misc_set_alignment(GTK_MISC(to_body_label), 0, 0.5);
 131         gtk_misc_set_alignment(GTK_MISC(ng_body_label), 0, 0.5);
 132         gtk_misc_set_alignment(GTK_MISC(subject_body_label), 0, 0.5);
 133 #if GTK_CHECK_VERSION(2, 6, 0)
 134         gtk_label_set_ellipsize(GTK_LABEL(to_body_label), PANGO_ELLIPSIZE_END);
 135         gtk_label_set_ellipsize(GTK_LABEL(ng_body_label), PANGO_ELLIPSIZE_END);
 136         gtk_label_set_ellipsize(GTK_LABEL(subject_body_label), PANGO_ELLIPSIZE_END);
 137 #endif
 138         headerview->hbox = hbox;
 139         headerview->from_header_label    = from_header_label;
 140         headerview->from_body_label      = from_body_label;
 141         headerview->to_header_label      = to_header_label;
 142         headerview->to_body_label        = to_body_label;
 143         headerview->ng_header_label      = ng_header_label;
 144         headerview->ng_body_label        = ng_body_label;
 145         headerview->subject_header_label = subject_header_label;
 146         headerview->subject_body_label   = subject_body_label;
 147         headerview->image = NULL;
 148
 149         gtk_widget_show_all(hbox);
 150
 151         return headerview;
 152 }
 153
 154 void headerview_set_font(HeaderView *headerview)
 155 {
 156         PangoFontDescription *boldfont = NULL;
 157         PangoFontDescription *normalfont = NULL;
 158
 159         if (!boldfont) {
 160                 normalfont = pango_font_description_from_string(NORMAL_FONT);
 161                 boldfont = pango_font_description_from_string(NORMAL_FONT);
 162                 pango_font_description_set_weight(boldfont, PANGO_WEIGHT_BOLD);
 163         }
 164
 165         if (boldfont) {
 166                 gtk_widget_modify_font(headerview->from_header_label, boldfont);
 167                 gtk_widget_modify_font(headerview->to_header_label, boldfont);
 168                 gtk_widget_modify_font(headerview->ng_header_label, boldfont);
 169                 gtk_widget_modify_font(headerview->subject_header_label, boldfont);
 170                 pango_font_description_free(boldfont);
 171
 172                 gtk_widget_modify_font(headerview->from_body_label, normalfont);
 173                 gtk_widget_modify_font(headerview->to_body_label, normalfont);
 174                 gtk_widget_modify_font(headerview->ng_body_label, normalfont);
 175                 gtk_widget_modify_font(headerview->subject_body_label, normalfont);
 176                 pango_font_description_free(normalfont);
 177         }
 178 }
 179
 180 void headerview_init(HeaderView *headerview)
 181 {
 182         headerview_set_font(headerview);
 183         headerview_clear(headerview);
 184         headerview_set_visibility(headerview, prefs_common.display_header_pane);
 185
 186 #if HAVE_LIBCOMPFACE
 187         {
 188                 gint i;
 189
 190                 for (i = 0; i < XPM_XFACE_HEIGHT; i++) {
 191                         xpm_xface[i] = g_malloc(WIDTH + 1);
 192                         *xpm_xface[i] = '\0';
 193                 }
 194         }
 195 #endif
 196 }
 197
 198 void headerview_show(HeaderView *headerview, MsgInfo *msginfo)
 199 {
 200         headerview_clear(headerview);
 201
 202         gtk_label_set_text(GTK_LABEL(headerview->from_body_label),
 203                            msginfo->from ? msginfo->from : _("(No From)"));
 204         if (msginfo->to) {
 205                 gtk_label_set_text(GTK_LABEL(headerview->to_body_label),
 206                                    msginfo->to);
 207                 gtk_widget_show(headerview->to_header_label);
 208                 gtk_widget_show(headerview->to_body_label);
 209         }
 210         if (msginfo->newsgroups) {
 211                 gtk_label_set_text(GTK_LABEL(headerview->ng_body_label),
 212                                    msginfo->newsgroups);
 213                 gtk_widget_show(headerview->ng_header_label);
 214                 gtk_widget_show(headerview->ng_body_label);
 215         }
 216         gtk_label_set_text(GTK_LABEL(headerview->subject_body_label),
 217                            msginfo->subject ? msginfo->subject :
 218                            _("(No Subject)"));
 219
 220         if (!headerview_show_face(headerview, msginfo))
 221                 return;
 222
 223 #if HAVE_LIBCOMPFACE
 224         headerview_show_xface(headerview, msginfo);
 225 #endif
 226 }
 227
 228 #if HAVE_LIBCOMPFACE
 229 static void headerview_show_xface(HeaderView *headerview, MsgInfo *msginfo)
 230 {
 231         gchar xface[2048];
 232         GdkPixmap *pixmap;
 233         GdkBitmap *mask;
 234         GtkWidget *hbox = headerview->hbox;
 235
 236         if (!msginfo->xface || strlen(msginfo->xface) < 5) {
 237                 if (headerview->image &&
 238                     GTK_WIDGET_VISIBLE(headerview->image)) {
 239                         gtk_widget_hide(headerview->image);
 240                         gtk_widget_queue_resize(hbox);
 241                 }
 242                 return;
 243         }
 244         if (!GTK_WIDGET_VISIBLE(headerview->hbox)) return;
 245
 246         strncpy(xface, msginfo->xface, sizeof(xface));
 247
 248         if (uncompface(xface) < 0) {
 249                 g_warning("uncompface failed\n");
 250                 if (headerview->image)
 251                         gtk_widget_hide(headerview->image);
 252                 return;
 253         }
 254
 255         create_xpm_from_xface(xpm_xface, xface);
 256
 257         pixmap = gdk_pixmap_create_from_xpm_d
 258                 (hbox->window, &mask, &hbox->style->white, xpm_xface);
 259
 260         if (!headerview->image) {
 261                 GtkWidget *image;
 262
 263                 image = gtk_image_new_from_pixmap(pixmap, mask);
 264                 gtk_box_pack_start(GTK_BOX(hbox), image, FALSE, FALSE, 0);
 265                 gtk_widget_show(image);
 266                 headerview->image = image;
 267         } else {
 268                 gtk_image_set_from_pixmap(GTK_IMAGE(headerview->image), pixmap, mask);
 269                 gtk_widget_show(headerview->image);
 270         }
 271
 272         g_object_unref(pixmap);
 273 }
 274 #endif
 275
 276 static gint headerview_show_face (HeaderView *headerview, MsgInfo *msginfo)
 277 {
 278         gchar face[2048];
 279         gchar face_png[2048];
 280         gint pngsize;
 281         GtkWidget *hbox = headerview->hbox;
 282         GdkPixbuf *pixbuf;
 283         GError *error = NULL;
 284
 285         if (!msginfo->face) {
 286                 if (headerview->image &&
 287                     GTK_WIDGET_VISIBLE(headerview->image)) {
 288                         gtk_widget_hide(headerview->image);
 289                         gtk_widget_queue_resize(hbox);
 290                 }
 291                 return -1;
 292         }
 293         if (!GTK_WIDGET_VISIBLE(headerview->hbox)) return -1;
 294
 295         strncpy2(face, msginfo->face, sizeof(face));
 296
 297         unfold_line(face); /* strip all whitespace and linebreaks */
 298         remove_space(face);
 299
 300         pngsize = base64_decode(face_png, face, strlen(face));
 301
 302         GdkPixbufLoader *loader = gdk_pixbuf_loader_new ();
 303         if (!gdk_pixbuf_loader_write (loader, face_png, pngsize, &error) ||
 304             !gdk_pixbuf_loader_close (loader, &error)) {
 305                 g_warning("loading face failed\n");
 306                 g_object_unref(loader);
 307                 if (headerview->image)
 308                         gtk_widget_hide(headerview->image);
 309                 return;
 310         }
 311
 312         pixbuf = g_object_ref(gdk_pixbuf_loader_get_pixbuf(loader));
 313
 314         g_object_unref(loader);
 315
 316         if ((gdk_pixbuf_get_width(pixbuf) != 48) || (gdk_pixbuf_get_height(pixbuf) != 48)) {
 317                 g_object_unref(pixbuf);
 318                 return -1;
 319         }
 320
 321         if (!headerview->image) {
 322                 GtkWidget *image;
 323
 324                 image = gtk_image_new_from_pixbuf(pixbuf);
 325                 gtk_box_pack_start(GTK_BOX(hbox), image, FALSE, FALSE, 0);
 326                 gtk_widget_show(image);
 327                 headerview->image = image;
 328         } else {
 329                 gtk_image_set_from_pixbuf(GTK_IMAGE(headerview->image), pixbuf);
 330                 gtk_widget_show(headerview->image);
 331         }
 332
 333         g_object_unref(pixbuf);
 334
 335         return 0;
 336 }
 337
 338 void headerview_clear(HeaderView *headerview)
 339 {
 340         if (headerview == NULL)
 341                 return;
 342
 343         gtk_label_set_text(GTK_LABEL(headerview->from_body_label), "");
 344         gtk_label_set_text(GTK_LABEL(headerview->to_body_label), "");
 345         gtk_label_set_text(GTK_LABEL(headerview->ng_body_label), "");
 346         gtk_label_set_text(GTK_LABEL(headerview->subject_body_label), "");
 347         gtk_widget_hide(headerview->to_header_label);
 348         gtk_widget_hide(headerview->to_body_label);
 349         gtk_widget_hide(headerview->ng_header_label);
 350         gtk_widget_hide(headerview->ng_body_label);
 351
 352         if (headerview->image && GTK_WIDGET_VISIBLE(headerview->image)) {
 353                 gtk_widget_hide(headerview->image);
 354                 gtk_widget_queue_resize(headerview->hbox);
 355         }
 356 }
 357
 358 void headerview_set_visibility(HeaderView *headerview, gboolean visibility)
 359 {
 360         if (visibility)
 361                 gtk_widget_show(headerview->hbox);
 362         else
 363                 gtk_widget_hide(headerview->hbox);
 364 }
 365
 366 void headerview_destroy(HeaderView *headerview)
 367 {
 368         g_free(headerview);
 369 }