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_model_get (GTK_TREE_MODEL (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))
107 g_string_free (buffer, TRUE);
111 g_free (current_file);
112 current_file = g_strdup (filename);
114 gtk_text_buffer_get_bounds (info_buffer, &start, &end);
115 gtk_text_buffer_delete (info_buffer, &start, &end);
117 gtk_text_buffer_get_bounds (source_buffer, &start, &end);
118 gtk_text_buffer_delete (source_buffer, &start, &end);
120 file = fopen (filename, "r");
124 char *installed = g_strconcat (DEMOCODEDIR,
129 file = fopen (installed, "r");
136 g_warning ("Cannot open %s: %s\n", filename, g_strerror (errno));
140 gtk_text_buffer_get_iter_at_offset (info_buffer, &start, 0);
141 while (read_line (file, buffer))
143 gchar *p = buffer->str;
150 while (*p == '/' || *p == '*' || isspace (*p))
153 while (q > p && isspace (*(q - 1)))
158 int len_chars = g_utf8_pointer_to_offset (p, q);
162 g_assert (strlen (p) >= q - p);
163 gtk_text_buffer_insert (info_buffer, &end, p, q - p);
166 gtk_text_iter_backward_chars (&start, len_chars);
167 gtk_text_buffer_apply_tag_by_name (info_buffer, "title", &start, &end);
176 /* Reading body of info section */
179 if (*p == '*' && *(p + 1) == '/')
181 gtk_text_buffer_get_iter_at_offset (source_buffer, &start, 0);
188 while (*p == '*' || isspace (*p))
192 while (isspace (*(p + len - 1)))
198 gtk_text_buffer_insert (info_buffer, &start, " ", 1);
200 g_assert (strlen (p) >= len);
201 gtk_text_buffer_insert (info_buffer, &start, p, len);
206 gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
213 /* Skipping blank lines */
226 /* Reading program body */
227 gtk_text_buffer_insert (source_buffer, &start, p, -1);
228 gtk_text_buffer_insert (info_buffer, &start, "\n", 1);
233 gtk_text_buffer_get_bounds (source_buffer, &start, &end);
234 gtk_text_buffer_apply_tag_by_name (info_buffer, "source", &start, &end);
236 g_string_free (buffer, TRUE);
240 button_press_event_cb (GtkTreeView *tree_view,
241 GdkEventButton *event,
244 if (event->type == GDK_2BUTTON_PRESS)
246 GtkTreePath *path = NULL;
248 gtk_tree_view_get_path_at_pos (tree_view,
264 gtk_tree_model_get_iter (model, &iter, path);
265 gtk_tree_model_get (GTK_TREE_MODEL (model),
268 ITALIC_COLUMN, &italic,
270 gtk_tree_store_set (GTK_TREE_STORE (model),
272 ITALIC_COLUMN, !italic,
277 CallbackData *cbdata;
279 cbdata = g_new (CallbackData, 1);
280 cbdata->model = model;
283 gtk_signal_connect (GTK_OBJECT (window),
290 gtk_tree_path_free (path);
294 gtk_signal_emit_stop_by_name (GTK_OBJECT (tree_view),
295 "button_press_event");
303 row_activated_cb (GtkTreeView *tree_view,
305 GtkTreeViewColumn *column,
313 gtk_tree_model_get_iter (model, &iter, path);
314 gtk_tree_model_get (GTK_TREE_MODEL (model),
317 ITALIC_COLUMN, &italic,
319 gtk_tree_store_set (GTK_TREE_STORE (model),
321 ITALIC_COLUMN, !italic,
326 CallbackData *cbdata;
328 cbdata = g_new (CallbackData, 1);
329 cbdata->model = model;
330 cbdata->path = gtk_tree_path_copy (path);
332 gtk_signal_connect (GTK_OBJECT (window),
339 gtk_tree_path_free (path);
344 selection_cb (GtkTreeSelection *selection,
348 GValue value = {0, };
350 if (! gtk_tree_selection_get_selected (selection, NULL, &iter))
353 gtk_tree_model_get_value (model, &iter,
356 load_file (g_value_get_string (&value));
357 g_value_unset (&value);
361 create_text (GtkTextBuffer **buffer,
364 GtkWidget *scrolled_window;
365 GtkWidget *text_view;
366 PangoFontDescription *font_desc;
368 scrolled_window = gtk_scrolled_window_new (NULL, NULL);
369 gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
370 GTK_POLICY_AUTOMATIC,
371 GTK_POLICY_AUTOMATIC);
372 gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
375 text_view = gtk_text_view_new ();
376 gtk_container_add (GTK_CONTAINER (scrolled_window), text_view);
378 *buffer = gtk_text_buffer_new (NULL);
379 gtk_text_view_set_buffer (GTK_TEXT_VIEW (text_view), *buffer);
380 gtk_text_view_set_editable (GTK_TEXT_VIEW (text_view), FALSE);
381 gtk_text_view_set_cursor_visible (GTK_TEXT_VIEW (text_view), FALSE);
385 font_desc = pango_font_description_from_string ("Courier 10");
386 gtk_widget_modify_font (text_view, font_desc);
387 pango_font_description_free (font_desc);
390 gtk_text_view_set_wrap_mode (GTK_TEXT_VIEW (text_view), !is_source);
392 return scrolled_window;
395 /* Technically a list, but if we do go to 80 demos, we may want to move to a tree */
399 GtkTreeSelection *selection;
400 GtkCellRenderer *cell;
401 GtkWidget *tree_view;
402 GtkTreeViewColumn *column;
407 model = gtk_tree_store_new_with_types (NUM_COLUMNS, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_POINTER, G_TYPE_BOOLEAN);
408 tree_view = gtk_tree_view_new_with_model (GTK_TREE_MODEL (model));
409 selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (tree_view));
411 gtk_tree_selection_set_mode (GTK_TREE_SELECTION (selection),
412 GTK_TREE_SELECTION_SINGLE);
413 gtk_widget_set_usize (tree_view, 200, -1);
415 for (i=0; i < G_N_ELEMENTS (testgtk_demos); i++)
417 gtk_tree_store_append (GTK_TREE_STORE (model), &iter, NULL);
419 gtk_tree_store_set (GTK_TREE_STORE (model),
421 TITLE_COLUMN, testgtk_demos[i].title,
422 FILENAME_COLUMN, testgtk_demos[i].filename,
423 FUNC_COLUMN, testgtk_demos[i].func,
424 ITALIC_COLUMN, FALSE,
428 cell = gtk_cell_renderer_text_new ();
430 g_object_set (G_OBJECT (cell),
431 "style", PANGO_STYLE_ITALIC,
434 column = gtk_tree_view_column_new_with_attributes ("Widget (double click for demo)",
436 "text", TITLE_COLUMN,
437 "style_set", ITALIC_COLUMN,
440 gtk_tree_view_append_column (GTK_TREE_VIEW (tree_view),
441 GTK_TREE_VIEW_COLUMN (column));
443 gtk_signal_connect (GTK_OBJECT (selection), "selection_changed", selection_cb, model);
444 gtk_signal_connect (GTK_OBJECT (tree_view), "row_activated", GTK_SIGNAL_FUNC (row_activated_cb), model);
450 main (int argc, char **argv)
458 gtk_init (&argc, &argv);
460 window = gtk_window_new (GTK_WINDOW_TOPLEVEL);
461 gtk_signal_connect (GTK_OBJECT (window), "destroy",
462 GTK_SIGNAL_FUNC (gtk_main_quit), NULL);
464 hbox = gtk_hbox_new (FALSE, 0);
465 gtk_container_add (GTK_CONTAINER (window), hbox);
467 tree = create_tree ();
468 gtk_box_pack_start (GTK_BOX (hbox), tree, FALSE, FALSE, 0);
470 notebook = gtk_notebook_new ();
471 gtk_box_pack_start (GTK_BOX (hbox), notebook, TRUE, TRUE, 0);
473 gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
474 create_text (&info_buffer, FALSE),
475 gtk_label_new_with_mnemonic ("_Info"));
477 gtk_notebook_append_page (GTK_NOTEBOOK (notebook),
478 create_text (&source_buffer, TRUE),
479 gtk_label_new_with_mnemonic ("_Source"));
481 tag = gtk_text_buffer_create_tag (info_buffer, "title",
485 tag = gtk_text_buffer_create_tag (info_buffer, "source",
486 "font", "Courier 10",
487 "pixels_above_lines", 0,
488 "pixels_below_lines", 0,
491 gtk_window_set_default_size (GTK_WINDOW (window), 600, 400);
492 gtk_widget_show_all (window);
495 load_file (testgtk_demos[0].filename);