src/gtkutils.c

   1 /*
   2  * Sylpheed -- a GTK+ based, lightweight, and fast e-mail client
   3  * Copyright (C) 1999-2001 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 <glib.h>
  25 #include <gdk/gdkkeysyms.h>
  26 #include <gdk/gdk.h>
  27 #include <gtk/gtkwidget.h>
  28 #include <gtk/gtkhbbox.h>
  29 #include <gtk/gtkbutton.h>
  30 #include <gtk/gtkctree.h>
  31 #include <gtk/gtkcombo.h>
  32 #include <gtk/gtkthemes.h>
  33 #include <gtk/gtkbindings.h>
  34 #include <stdarg.h>
  35
  36 #if (HAVE_WCTYPE_H && HAVE_WCHAR_H)
  37 #  include <wchar.h>
  38 #  include <wctype.h>
  39 #endif
  40
  41 #include "intl.h"
  42 #include "gtkutils.h"
  43 #include "utils.h"
  44 #include "gtksctree.h"
  45 #include "codeconv.h"
  46
  47 gint gtkut_get_font_width(GdkFont *font)
  48 {
  49         gchar *str;
  50         gint width;
  51
  52         if (conv_get_current_charset() == C_UTF_8)
  53                 str = "Abcdef";
  54         else
  55                 str = _("Abcdef");
  56
  57         width = gdk_string_width(font, str);
  58         width /= strlen(str);
  59
  60         return width;
  61 }
  62
  63 gint gtkut_get_font_height(GdkFont *font)
  64 {
  65         gchar *str;
  66         gint height;
  67
  68         if (conv_get_current_charset() == C_UTF_8)
  69                 str = "Abcdef";
  70         else
  71                 str = _("Abcdef");
  72
  73         height = gdk_string_height(font, str);
  74
  75         return height;
  76 }
  77
  78 void gtkut_convert_int_to_gdk_color(gint rgbvalue, GdkColor *color)
  79 {
  80         g_return_if_fail(color != NULL);
  81
  82         color->pixel = 0L;
  83         color->red   = (int) (((gdouble)((rgbvalue & 0xff0000) >> 16) / 255.0) * 65535.0);
  84         color->green = (int) (((gdouble)((rgbvalue & 0x00ff00) >>  8) / 255.0) * 65535.0);
  85         color->blue  = (int) (((gdouble) (rgbvalue & 0x0000ff)        / 255.0) * 65535.0);
  86 }
  87
  88 void gtkut_button_set_create(GtkWidget **bbox,
  89                              GtkWidget **button1, const gchar *label1,
  90                              GtkWidget **button2, const gchar *label2,
  91                              GtkWidget **button3, const gchar *label3)
  92 {
  93         g_return_if_fail(bbox != NULL);
  94         g_return_if_fail(button1 != NULL);
  95
  96         *bbox = gtk_hbutton_box_new();
  97         gtk_button_box_set_layout(GTK_BUTTON_BOX(*bbox), GTK_BUTTONBOX_END);
  98         gtk_button_box_set_spacing(GTK_BUTTON_BOX(*bbox), 5);
  99
 100         *button1 = gtk_button_new_with_label(label1);
 101         GTK_WIDGET_SET_FLAGS(*button1, GTK_CAN_DEFAULT);
 102         gtk_box_pack_start(GTK_BOX(*bbox), *button1, TRUE, TRUE, 0);
 103         gtk_widget_show(*button1);
 104
 105         if (button2) {
 106                 *button2 = gtk_button_new_with_label(label2);
 107                 GTK_WIDGET_SET_FLAGS(*button2, GTK_CAN_DEFAULT);
 108                 gtk_box_pack_start(GTK_BOX(*bbox), *button2, TRUE, TRUE, 0);
 109                 gtk_widget_show(*button2);
 110         }
 111
 112         if (button3) {
 113                 *button3 = gtk_button_new_with_label(label3);
 114                 GTK_WIDGET_SET_FLAGS(*button3, GTK_CAN_DEFAULT);
 115                 gtk_box_pack_start(GTK_BOX(*bbox), *button3, TRUE, TRUE, 0);
 116                 gtk_widget_show(*button3);
 117         }
 118 }
 119
 120 #define CELL_SPACING 1
 121 #define ROW_TOP_YPIXEL(clist, row) (((clist)->row_height * (row)) + \
 122                                     (((row) + 1) * CELL_SPACING) + \
 123                                     (clist)->voffset)
 124 #define ROW_FROM_YPIXEL(clist, y) (((y) - (clist)->voffset) / \
 125                                    ((clist)->row_height + CELL_SPACING))
 126
 127 void gtkut_ctree_node_move_if_on_the_edge(GtkCTree *ctree, GtkCTreeNode *node)
 128 {
 129         GtkCList *clist = GTK_CLIST(ctree);
 130         gint row;
 131         GtkVisibility row_visibility, prev_row_visibility, next_row_visibility;
 132
 133         g_return_if_fail(ctree != NULL);
 134         g_return_if_fail(node != NULL);
 135
 136         row = g_list_position(clist->row_list, (GList *)node);
 137         if (row < 0 || row >= clist->rows || clist->row_height == 0) return;
 138         row_visibility = gtk_clist_row_is_visible(clist, row);
 139         prev_row_visibility = gtk_clist_row_is_visible(clist, row - 1);
 140         next_row_visibility = gtk_clist_row_is_visible(clist, row + 1);
 141
 142         if (row_visibility == GTK_VISIBILITY_NONE) {
 143                 gtk_clist_moveto(clist, row, -1, 0.5, 0);
 144                 return;
 145         }
 146         if (row_visibility == GTK_VISIBILITY_FULL &&
 147             prev_row_visibility == GTK_VISIBILITY_FULL &&
 148             next_row_visibility == GTK_VISIBILITY_FULL)
 149                 return;
 150         if (prev_row_visibility != GTK_VISIBILITY_FULL &&
 151             next_row_visibility != GTK_VISIBILITY_FULL)
 152                 return;
 153
 154         if (prev_row_visibility != GTK_VISIBILITY_FULL) {
 155                 gtk_clist_moveto(clist, row, -1, 0.2, 0);
 156                 return;
 157         }
 158         if (next_row_visibility != GTK_VISIBILITY_FULL) {
 159                 gtk_clist_moveto(clist, row, -1, 0.8, 0);
 160                 return;
 161         }
 162 }
 163
 164 #undef CELL_SPACING
 165 #undef ROW_TOP_YPIXEL
 166 #undef ROW_FROM_YPIXEL
 167
 168 gint gtkut_ctree_get_nth_from_node(GtkCTree *ctree, GtkCTreeNode *node)
 169 {
 170         g_return_val_if_fail(ctree != NULL, -1);
 171         g_return_val_if_fail(node != NULL, -1);
 172
 173         return g_list_position(GTK_CLIST(ctree)->row_list, (GList *)node);
 174 }
 175
 176 /* get the next node, including the invisible one */
 177 GtkCTreeNode *gtkut_ctree_node_next(GtkCTree *ctree, GtkCTreeNode *node)
 178 {
 179         GtkCTreeNode *parent;
 180
 181         if (!node) return NULL;
 182
 183         if (GTK_CTREE_ROW(node)->children)
 184                 return GTK_CTREE_ROW(node)->children;
 185
 186         if (GTK_CTREE_ROW(node)->sibling)
 187                 return GTK_CTREE_ROW(node)->sibling;
 188
 189         for (parent = GTK_CTREE_ROW(node)->parent; parent != NULL;
 190              parent = GTK_CTREE_ROW(parent)->parent) {
 191                 if (GTK_CTREE_ROW(parent)->sibling)
 192                         return GTK_CTREE_ROW(parent)->sibling;
 193         }
 194
 195         return NULL;
 196 }
 197
 198 GtkCTreeNode *gtkut_ctree_find_collapsed_parent(GtkCTree *ctree,
 199                                                 GtkCTreeNode *node)
 200 {
 201         if (!node) return NULL;
 202
 203         while ((node = GTK_CTREE_ROW(node)->parent) != NULL) {
 204                 if (!GTK_CTREE_ROW(node)->expanded)
 205                         return node;
 206         }
 207
 208         return NULL;
 209 }
 210
 211 void gtkut_ctree_expand_parent_all(GtkCTree *ctree, GtkCTreeNode *node)
 212 {
 213         while ((node = gtkut_ctree_find_collapsed_parent(ctree, node)) != NULL)
 214                 gtk_ctree_expand(ctree, node);
 215 }
 216
 217 void gtkut_ctree_set_focus_row(GtkCTree *ctree, GtkCTreeNode *node)
 218 {
 219         gtkut_clist_set_focus_row(GTK_CLIST(ctree),
 220                                   gtkut_ctree_get_nth_from_node(ctree, node));
 221 }
 222
 223 void gtkut_clist_set_focus_row(GtkCList *clist, gint row)
 224 {
 225         clist->focus_row = row;
 226         GTKUT_CTREE_REFRESH(clist);
 227 }
 228
 229 void gtkut_combo_set_items(GtkCombo *combo, const gchar *str1, ...)
 230 {
 231         va_list args;
 232         gchar *s;
 233         GList *combo_items = NULL;
 234
 235         g_return_if_fail(str1 != NULL);
 236
 237         combo_items = g_list_append(combo_items, (gpointer)str1);
 238         va_start(args, str1);
 239         s = va_arg(args, gchar*);
 240         while (s) {
 241                 combo_items = g_list_append(combo_items, (gpointer)s);
 242                 s = va_arg(args, gchar*);
 243         }
 244         va_end(args);
 245
 246         gtk_combo_set_popdown_strings(combo, combo_items);
 247
 248         g_list_free(combo_items);
 249 }
 250
 251 gboolean gtkut_text_match_string(GtkSText *text, gint pos, wchar_t *wcs,
 252                                  gint len, gboolean case_sens)
 253 {
 254         gint match_count = 0;
 255
 256         for (; match_count < len; pos++, match_count++) {
 257                 if (case_sens) {
 258                         if (GTK_STEXT_INDEX(text, pos) != wcs[match_count])
 259                                 break;
 260                 } else {
 261                         if (towlower(GTK_STEXT_INDEX(text, pos)) !=
 262                             towlower(wcs[match_count]))
 263                                 break;
 264                 }
 265         }
 266
 267         if (match_count == len)
 268                 return TRUE;
 269         else
 270                 return FALSE;
 271 }
 272
 273 guint gtkut_text_str_compare_n(GtkSText *text, guint pos1, guint pos2,
 274                                guint len, guint text_len)
 275 {
 276         guint i;
 277         GdkWChar ch1, ch2;
 278
 279         for (i = 0; i < len && pos1 + i < text_len && pos2 + i < text_len; i++) {
 280                 ch1 = GTK_STEXT_INDEX(text, pos1 + i);
 281                 ch2 = GTK_STEXT_INDEX(text, pos2 + i);
 282                 if (ch1 != ch2)
 283                         break;
 284         }
 285
 286         return i;
 287 }
 288
 289 guint gtkut_text_str_compare(GtkSText *text, guint start_pos, guint text_len,
 290                              const gchar *str)
 291 {
 292         wchar_t *wcs;
 293         guint len;
 294         gboolean result;
 295
 296         if (!str) return 0;
 297
 298         wcs = strdup_mbstowcs(str);
 299         if (!wcs) return 0;
 300         len = wcslen(wcs);
 301
 302         if (len > text_len - start_pos)
 303                 result = FALSE;
 304         else
 305                 result = gtkut_text_match_string(text, start_pos, wcs, len,
 306                                                  TRUE);
 307
 308         g_free(wcs);
 309
 310         return result ? len : 0;
 311 }
 312
 313 gboolean gtkut_text_is_uri_string(GtkSText *text,
 314                                   guint start_pos, guint text_len)
 315 {
 316         if (gtkut_text_str_compare(text, start_pos, text_len, "http://") ||
 317             gtkut_text_str_compare(text, start_pos, text_len, "ftp://")  ||
 318             gtkut_text_str_compare(text, start_pos, text_len, "https://"))
 319                 return TRUE;
 320
 321         return FALSE;
 322 }
 323
 324 void gtkut_widget_disable_theme_engine(GtkWidget *widget)
 325 {
 326         GtkStyle *style, *new_style;
 327
 328         style = gtk_widget_get_style(widget);
 329
 330         if (style->engine) {
 331                 GtkThemeEngine *engine;
 332
 333                 engine = style->engine;
 334                 style->engine = NULL;
 335                 new_style = gtk_style_copy(style);
 336                 style->engine = engine;
 337                 gtk_widget_set_style(widget, new_style);
 338         }
 339 }
 340
 341 static void gtkut_widget_draw_cb(GtkWidget *widget, GdkRectangle *area,
 342                                  gboolean *flag)
 343 {
 344         *flag = TRUE;
 345         gtk_signal_disconnect_by_data(GTK_OBJECT(widget), flag);
 346 }
 347
 348 void gtkut_widget_wait_for_draw(GtkWidget *widget)
 349 {
 350         gboolean flag = FALSE;
 351
 352         if (!GTK_WIDGET_VISIBLE(widget)) return;
 353
 354         gtk_signal_connect(GTK_OBJECT(widget), "draw",
 355                            GTK_SIGNAL_FUNC(gtkut_widget_draw_cb), &flag);
 356         while (!flag)
 357                 gtk_main_iteration();
 358 }
 359
 360 void gtkut_widget_get_uposition(GtkWidget *widget, gint *px, gint *py)
 361 {
 362         gint x, y;
 363         gint sx, sy;
 364
 365         g_return_if_fail(widget != NULL);
 366         g_return_if_fail(widget->window != NULL);
 367
 368         /* gdk_window_get_root_origin ever return *rootwindow*'s position*/
 369         gdk_window_get_root_origin(widget->window, &x, &y);
 370
 371         sx = gdk_screen_width();
 372         sy = gdk_screen_height();
 373         x %= sx; if (x < 0) x = 0;
 374         y %= sy; if (y < 0) y = 0;
 375         *px = x;
 376         *py = y;
 377 }
 378
 379 static void gtkut_clist_bindings_add(GtkWidget *clist)
 380 {
 381         GtkBindingSet *binding_set;
 382
 383         binding_set = gtk_binding_set_by_class
 384                 (GTK_CLIST_CLASS(GTK_OBJECT(clist)->klass));
 385
 386         gtk_binding_entry_add_signal(binding_set, GDK_n, GDK_CONTROL_MASK,
 387                                      "scroll_vertical", 2,
 388                                      GTK_TYPE_ENUM, GTK_SCROLL_STEP_FORWARD,
 389                                      GTK_TYPE_FLOAT, 0.0);
 390         gtk_binding_entry_add_signal(binding_set, GDK_p, GDK_CONTROL_MASK,
 391                                      "scroll_vertical", 2,
 392                                      GTK_TYPE_ENUM, GTK_SCROLL_STEP_BACKWARD,
 393                                      GTK_TYPE_FLOAT, 0.0);
 394 }
 395
 396 void gtkut_widget_init(void)
 397 {
 398         GtkWidget *clist;
 399
 400         clist = gtk_clist_new(1);
 401         gtkut_clist_bindings_add(clist);
 402         gtk_widget_unref(clist);
 403
 404         clist = gtk_ctree_new(1, 0);
 405         gtkut_clist_bindings_add(clist);
 406         gtk_widget_unref(clist);
 407
 408         clist = gtk_sctree_new_with_titles(1, 0, NULL);
 409         gtkut_clist_bindings_add(clist);
 410         gtk_widget_unref(clist);
 411 }
 412
 413 void gtkut_widget_set_app_icon(GtkWidget *widget)
 414 {
 415 #include "pixmaps/sylpheed.xpm"
 416         static GdkPixmap *sylpheedxpm;
 417         static GdkBitmap *sylpheedxpmmask;
 418
 419         g_return_if_fail(widget != NULL);
 420         g_return_if_fail(widget->window != NULL);
 421         if (!sylpheedxpm) {
 422                 PIXMAP_CREATE(widget, sylpheedxpm, sylpheedxpmmask, sylpheed_xpm);
 423         }
 424         gdk_window_set_icon(widget->window, NULL, sylpheedxpm, sylpheedxpmmask);
 425 }
 426
 427 void gtkut_widget_set_composer_icon(GtkWidget *widget)
 428 {
 429 #include "pixmaps/stock_mail_compose.xpm"
 430         static GdkPixmap *xpm;
 431         static GdkBitmap *bmp;
 432
 433         g_return_if_fail(widget != NULL);
 434         g_return_if_fail(widget->window != NULL);
 435         if (!xpm) {
 436                 PIXMAP_CREATE(widget, xpm, bmp, stock_mail_compose_xpm);
 437         }
 438         gdk_window_set_icon(widget->window, NULL, xpm, bmp);
 439 }
 440
 441