10 static GtkTextBuffer *info_buffer;
11 static GtkTextBuffer *source_buffer;
13 static gchar *current_file = NULL;
23 typedef struct _CallbackData CallbackData;
31 window_closed_cb (GtkWidget *window, gpointer data)
33 CallbackData *cbdata = data;
37 gtk_tree_model_get_iter (cbdata->model, &iter, cbdata->path);
38 gtk_tree_store_get (GTK_TREE_STORE (cbdata->model), &iter,
39 ITALIC_COLUMN, &italic,
42 gtk_tree_store_set (GTK_TREE_STORE (cbdata->model), &iter,
43 ITALIC_COLUMN, !italic,
46 gtk_tree_path_free (cbdata->path);
51 read_line (FILE *stream, GString *str)
57 g_string_truncate (str, 0);
63 c = getc_unlocked (stream);
75 int next_c = getc_unlocked (stream);
77 if (!(next_c == EOF ||
78 (c == '\r' && next_c == '\n') ||
79 (c == '\n' && next_c == '\r')))
80 ungetc (next_c, stream);
85 g_string_append_c (str, c);
97 load_file (const gchar *filename)
100 GtkTextIter start, end;
101 GString *buffer = g_string_new (NULL);
103 gboolean in_para = 0;
105 if (current_file && !strcmp (current_file, filename))
108 g_free (current_file);
109 current_file = g_strdup (filename);
111 gtk_text_buffer_get_bounds (info_buffer, &start, &end);
112 gtk_text_buffer_delete (info_buffer, &start, &end);
114 gtk_text_buffer_get_bounds (source_buffer, &start, &end);
115 gtk_text_buffer_delete (source_buffer, &start, &end);
117 file = fopen (filename, "r");
121 char *installed = g_strconcat (DEMOCODEDIR,
126 file = fopen (installed, "r");
133 g_warning ("Cannot open %s: %s\n", filename, g_strerror (errno));
137 gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
138 while (read_line (file, buffer))
140 gchar *p = buffer->str;
147 while (*p == '/' || *p == '*' || isspace (*p))
150 while (q > p && isspace (*(q - 1)))
155 int len_chars = g_utf8_pointer_to_offset (p, q);
159 g_assert (strlen (p) >= q - p);
160 gtk_text_buffer_insert (info_buffer, &end, p, q - p);
163 gtk_text_iter_backward_chars (&start, len_chars);
164 gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
173 /* Reading body of info section */
176 if (*p == '*' && *(p + 1) == '/')
178 gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
185 while (*p == '*' || isspace (*p))
189 while (isspace (*(p + len - 1)))
195 gtk_text_buffer_insert (info_buffer, &start, " ", 1);
197 g_assert (strlen (p) >= len);
198 gtk_text_buffer_insert (info_buffer, &start, p, len);
203 gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
210 /* Skipping blank lines */
223 /* Reading program body */
224 gtk_text_buffer_insert (source_buffer, &start, p, -1);
225 gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
230 gtk_text_buffer_get_bounds (source_buffer, &start, &end);
231 gtk_text_buffer_apply_tag_by_name (info_buffer, "source", &start, &end);
235 button_press_event_cb (GtkTreeView *tree_view,
236 GdkEventButton *event,
239 if (event->type == GDK_2BUTTON_PRESS)
241 GtkTreePath *path = NULL;
243 gtk_tree_view_get_path_at_pos (tree_view,
257 gtk_tree_model_get_iter (model, &iter, path);
258 gtk_tree_store_get (GTK_TREE_STORE (model),
261 ITALIC_COLUMN, &italic,
263 gtk_tree_store_set (GTK_TREE_STORE (model),
265 ITALIC_COLUMN, !italic,
270 CallbackData *cbdata;
272 cbdata = g_new (CallbackData, 1);
273 cbdata->model = model;
276 gtk_signal_connect (GTK_OBJECT (window),
283 gtk_tree_path_free (path);
287 gtk_signal_emit_stop_by_name (GTK_OBJECT (tree_view),
288 "button_press_event");
296 selection_cb (GtkTreeSelection *selection,
300 GValue value = {0, };
302 if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
305 gtk_tree_model_get_value (model, &iter,
308 load_file (g_value_get_string (&value));
309 g_value_unset (&value);
313 create_text (GtkTextBuffer **buffer,
316 GtkWidget *scrolled_window;
317 GtkWidget *text_view;
318 PangoFontDescription *font_desc;
320 scrolled_window = gtk_scrolled_window_new (NULL, NULL);
321 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
322 GTK_POLICY_AUTOMATIC,
323 GTK_POLICY_AUTOMATIC);
324 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
327 text_view = gtk_text_view_new ();
328 gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
330 *buffer = gtk_text_buffer_new (NULL);
331 gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), *buffer);
332 gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
333 gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
337 font_desc = pango_font_description_from_string ("Courier 10");
338 gtk_widget_modify_font (text_view, font_desc);
339 pango_font_description_free (font_desc);
342 gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), !is_source);
344 return scrolled_window;
347 /* Technically a list, but if we do go to 80 demos, we may want to move to a tree */
351 GtkTreeSelection *selection;
352 GtkCellRenderer *cell;
353 GtkWidget *tree_view;
354 GtkTreeViewColumn *column;
359 model = gtk_tree_store_new_with_types (NUM_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
360 tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
361 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
363 gtk_tree_selection_set_mode (GTK_TREE_SELECTION (selection),
364 GTK_TREE_SELECTION_SINGLE);
365 gtk_widget_set_usize (tree_view, 200, -1);
367 for (i=0; i < G_N_ELEMENTS (testgtk_demos); i++)
369 gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
371 gtk_tree_store_set (GTK_TREE_STORE (model),
373 TITLE_COLUMN, testgtk_demos[i].title,
374 FILENAME_COLUMN, testgtk_demos[i].filename,
375 FUNC_COLUMN, testgtk_demos[i].func,
376 ITALIC_COLUMN, FALSE,
380 cell = gtk_cell_renderer_text_new ();
381 column = gtk_tree_view_column_new_with_attributes ("Widget (double click for demo)",
383 "text", TITLE_COLUMN,
384 "italic", ITALIC_COLUMN,
386 gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),
387 GTK_TREE_VIEW_COLUMN (column));
389 gtk_signal_connect (GTK_OBJECT (selection), "selection_changed", selection_cb, model);
390 gtk_signal_connect (GTK_OBJECT (tree_view), "button_press_event", GTK_SIGNAL_FUNC (button_press_event_cb), model);
396 main (int argc, char **argv)
404 gtk_init (&argc, &argv);
406 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
407 gtk_signal_connect (GTK_OBJECT (window), "destroy",
408 GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
410 hbox = gtk_hbox_new (FALSE, 0);
411 gtk_container_add (GTK_CONTAINER (window), hbox);
413 tree = create_tree ();
414 gtk_box_pack_start (GTK_BOX (hbox), tree, FALSE, FALSE, 0);
416 notebook = gtk_notebook_new ();
417 gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
419 gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
420 create_text (&info_buffer, FALSE),
421 gtk_label_new ("Info"));
424 gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
425 create_text (&source_buffer, TRUE),
426 gtk_label_new ("Source"));
428 tag = gtk_text_buffer_create_tag (info_buffer, "title");
429 g_object_set (G_OBJECT (tag),
433 tag = gtk_text_buffer_create_tag (info_buffer, "source");
434 g_object_set (G_OBJECT (tag),
435 "font", "Courier 10",
436 "pixels_above_lines", 0,
437 "pixels_below_lines", 0,
440 gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
441 gtk_widget_show_all (window);
444 load_file (testgtk_demos[0].filename);