1 /* This file is part of EdiTeX, an editor of mathematical
2 * expressions based on TeX syntax.
4 * Copyright (C) 2002-2003 Luca Padovani <lpadovan@cs.unibo.it>,
5 * 2003 Paolo Marinelli <pmarinel@cs.unibo.it>.
7 * This library is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU Lesser General Public
9 * License as published by the Free Software Foundation; either
10 * version 2.1 of the License, or (at your option) any later version.
12 * This library is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * Lesser General Public License for more details.
17 * You should have received a copy of the GNU Lesser General Public
18 * License along with this library; if not, write to the Free Software
19 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
21 * For more information, please visit the project's home page
22 * http://helm.cs.unibo.it/editex/
23 * or send an email to <lpadovan@cs.unibo.it>
29 #include <gdk/gdkkeysyms.h>
31 #include <gtkmathview.h>
34 #define XLINK_NS_URI "http://www.w3.org/1999/xlink"
36 static GtkWidget* window;
37 static GtkWidget* main_area;
38 static GtkWidget* scrolled_area;
40 static gpointer context = NULL;
41 static gchar* doc_name = NULL;
42 static GdomeElement* first_selected = NULL;
43 static GdomeElement* root_selected = NULL;
45 static void create_widget_set(gpointer);
46 static GtkWidget* get_main_menu(void);
47 static void file_open(GtkWidget*, gpointer);
48 static void file_re_open(GtkWidget*, gpointer);
49 static void file_close(GtkWidget*, gpointer);
50 static void file_output_tex(GtkWidget*, gpointer);
51 static void options_set_font_size(GtkWidget*, gpointer);
52 static void options_change_font_size(GtkWidget*, gboolean);
53 static void options_verbosity(GtkWidget*, guint);
54 static void edit_delete_selection(GtkWidget*, gpointer);
55 static void edit_select_parent(GtkWidget*, gpointer);
56 static void edit_reset_selection(GtkWidget*, gpointer);
57 static void edit_reset(GtkWidget*, gpointer);
58 static void edit_insert(GtkWidget*, gpointer);
59 static void help_about(GtkWidget*, gpointer);
61 static GtkItemFactoryEntry menu_items[] = {
62 { "/_File", NULL, NULL, 0, "<Branch>" },
63 { "/File/_Open...", "<control>O", file_open, 0, NULL },
64 { "/File/_Reopen", NULL, file_re_open, 0, NULL },
65 { "/File/_Close", "<control>W", file_close, 0, NULL },
66 { "/File/Output _TeX", NULL, file_output_tex, 0, NULL },
67 { "/File/sep1", NULL, NULL, 0, "<Separator>" },
68 { "/File/_Quit", "<control>Q", gtk_main_quit, 0, NULL },
70 { "/_Edit", NULL, NULL, 0, "<Branch>" },
71 { "/Edit/Reset Selection", NULL, edit_reset_selection, 0, NULL },
72 { "/Edit/Delete Selection", NULL, edit_delete_selection, 0, NULL },
73 { "/Edit/Select Parent", NULL, edit_select_parent, 0, NULL },
74 { "/Edit/sep1", NULL, NULL, 0, "<Separator>" },
75 { "/Edit/_Reset", NULL, edit_reset, 0, NULL },
76 { "/Edit/Insert...", "<control>I", edit_insert, 0, NULL },
78 { "/_Options", NULL, NULL, 0, "<Branch>" },
79 { "/Options/Default _Font Size", NULL, NULL, 0, "<Branch>" },
80 { "/Options/Default Font Size/Set...", NULL, options_set_font_size, 0, NULL },
81 { "/Options/Default Font Size/sep1", NULL, NULL, 0, "<Separator>" },
82 { "/Options/Default Font Size/Larger", NULL, options_change_font_size, TRUE, NULL },
83 { "/Options/Default Font Size/Smaller", NULL, options_change_font_size, FALSE, NULL },
84 { "/Options/Verbosity", NULL, NULL, 0, "<Branch>" },
85 { "/Options/Verbosity/_Errors", NULL, options_verbosity, 0, "<RadioItem>" },
86 { "/Options/Verbosity/_Warnings", NULL, options_verbosity, 1, "/Options/Verbosity/Errors" },
87 { "/Options/Verbosity/_Info", NULL, options_verbosity, 2, "/Options/Verbosity/Errors" },
88 { "/Options/Verbosity/_Debug", NULL, options_verbosity, 3, "/Options/Verbosity/Errors" },
90 { "/_Help" , NULL, NULL, 0, "<LastBranch>" },
91 { "/Help/About...", NULL, help_about, 0, NULL }
95 quick_message(const char* msg)
99 GtkWidget* okay_button;
101 /* Create the widgets */
103 dialog = gtk_dialog_new();
104 label = gtk_label_new (msg);
105 okay_button = gtk_button_new_with_label("OK");
107 gtk_widget_set_usize(dialog, 300, 100);
109 /* Ensure that the dialog box is destroyed when the user clicks ok. */
111 gtk_signal_connect_object (GTK_OBJECT (okay_button), "clicked",
112 GTK_SIGNAL_FUNC (gtk_widget_destroy), dialog);
113 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area),
116 /* Add the label, and show everything we've added to the dialog. */
118 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
119 gtk_widget_show_all (dialog);
123 load_error_msg(const char* name)
125 char* msg = g_strdup_printf("Could not load\n`%s'", name);
130 static guint edit_timeout_id;
131 extern void edit_timeout(gpointer);
134 GUI_init(int* argc, char*** argv, char* title, guint width, guint height, gpointer c)
136 gtk_init(argc, argv);
138 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
139 gtk_window_set_title(GTK_WINDOW(window), title);
140 gtk_window_set_default_size(GTK_WINDOW(window), width, height);
141 gtk_signal_connect(GTK_OBJECT(window), "delete_event", (GtkSignalFunc) gtk_main_quit, NULL);
142 create_widget_set(context);
144 gtk_widget_show(window);
147 /*edit_timeout_id = gtk_timeout_add(50, edit_timeout, context);*/
153 GdomeException exc = 0;
155 if (first_selected != NULL)
157 gdome_el_unref(first_selected, &exc);
159 first_selected = NULL;
162 if (root_selected != NULL)
164 gdome_el_unref(root_selected, &exc);
166 root_selected = NULL;
173 GUI_load_document(GdomeDocument* doc)
175 GtkMathView* math_view;
177 g_return_val_if_fail(doc != NULL, -1);
178 g_return_val_if_fail(main_area != NULL, -1);
179 g_return_val_if_fail(GTK_IS_MATH_VIEW(main_area), -1);
181 math_view = GTK_MATH_VIEW(main_area);
183 if (!gtk_math_view_load_doc(math_view, doc)) return -1;
191 gtk_math_view_freeze(GTK_MATH_VIEW(main_area));
197 gtk_math_view_thaw(GTK_MATH_VIEW(main_area));
201 GUI_unload_document()
203 GtkMathView* math_view;
205 g_return_if_fail(main_area != NULL);
206 g_return_if_fail(GTK_IS_MATH_VIEW(main_area));
208 math_view = GTK_MATH_VIEW(main_area);
210 gtk_math_view_unload(math_view);
212 if (doc_name != NULL) g_free(doc_name);
224 GUI_set_font_manager(FontManagerId id)
227 GtkMathView* math_view;
229 g_return_if_fail(id != FONT_MANAGER_UNKNOWN);
230 g_return_if_fail(main_area != NULL);
231 g_return_if_fail(GTK_IS_MATH_VIEW(main_area));
233 t1 = id == FONT_MANAGER_T1;
235 math_view = GTK_MATH_VIEW(main_area);
237 gtk_math_view_freeze(math_view);
239 if (id != gtk_math_view_get_font_manager_type(math_view))
240 gtk_math_view_set_font_manager_type(math_view, id);
242 gtk_widget_set_sensitive(anti_aliasing(math_view, GTK_CHECK_MENU_ITEM(anti_aliasing_item)->active);
243 gtk_math_view_set_transparency(math_view, GTK_CHECK_MENU_ITEM(transparency_item)->active);
246 gtk_math_view_thaw(math_view);
251 store_filename(GtkFileSelection* selector, GtkWidget* user_data)
253 gchar* selected_filename = gtk_file_selection_get_filename (GTK_FILE_SELECTION(user_data));
254 if (selected_filename != NULL)
255 GUI_load_document(selected_filename);
259 file_close(GtkWidget* widget, gpointer data)
261 GUI_unload_document();
265 file_re_open(GtkWidget* widget, gpointer data)
267 if (doc_name != NULL) {
268 GUI_load_document(doc_name);
273 file_open(GtkWidget* widget, gpointer data)
275 GtkWidget* fs = gtk_file_selection_new("Open File");
277 gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(fs)->ok_button),
278 "clicked", GTK_SIGNAL_FUNC (store_filename), (gpointer) fs);
280 /* Ensure that the dialog box is destroyed when the user clicks a button. */
282 gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(fs)->ok_button),
283 "clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
286 gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(fs)->cancel_button),
287 "clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
290 /* Display that dialog */
292 gtk_widget_show (fs);
296 file_output_tex(GtkWidget* widget, gpointer data)
298 g_assert(context != NULL);
299 edit_output_tex(context);
304 options_font_manager(GtkWidget* widget, FontManagerId id)
306 g_return_if_fail(id != FONT_MANAGER_UNKNOWN);
307 GUI_set_font_manager(id);
312 options_verbosity(GtkWidget* widget, guint level)
314 gtk_math_view_set_log_verbosity(GTK_MATH_VIEW(main_area), level);
318 edit_delete_selection(GtkWidget* widget, gpointer data)
320 if (root_selected != NULL)
323 gtk_math_view_freeze(GTK_MATH_VIEW(main_area));
324 printf("about to remove element %p\n", root_selected);
325 delete_element(root_selected);
326 gdome_el_unref(root_selected, &exc);
328 root_selected = NULL;
329 gtk_math_view_thaw(GTK_MATH_VIEW(main_area));
334 edit_select_parent(GtkWidget* widget, gpointer data)
336 if (root_selected != NULL)
338 GdomeException exc = 0;
339 GdomeElement* parent = gdome_n_parentNode(root_selected, &exc);
341 gdome_el_unref(root_selected, &exc);
343 root_selected = parent;
344 /* gtk_math_view_set_selection(GTK_MATH_VIEW(main_area), root_selected); */
349 edit_reset_selection(GtkWidget* widget, gpointer data)
351 if (root_selected != NULL)
353 GdomeException exc = 0;
354 /* gtk_math_view_reset_selection(GTK_MATH_VIEW(main_area), root_selected); */
355 gdome_el_unref(root_selected, &exc);
357 root_selected = NULL;
362 edit_reset(GtkWidget* widget, gpointer data)
364 g_assert(context != NULL);
365 edit_reset_tex(context);
369 insert_tex(GtkWidget* widget, GtkEntry* entry)
372 g_return_if_fail(entry != NULL);
374 text = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
375 edit_push_string(context, text);
380 edit_insert(GtkWidget* widget, gpointer data)
387 dialog = gtk_dialog_new();
388 entry = gtk_entry_new();
389 ok = gtk_button_new_with_label("OK");
390 cancel = gtk_button_new_with_label("Cancel");
392 gtk_signal_connect (GTK_OBJECT (ok), "clicked",
393 GTK_SIGNAL_FUNC (insert_tex), (gpointer) entry);
395 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
396 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
398 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
399 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
401 gtk_signal_connect_object (GTK_OBJECT (cancel), "clicked",
402 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
404 gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), 5);
406 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), entry);
407 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), ok);
408 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), cancel);
410 gtk_widget_show_all (dialog);
414 help_about(GtkWidget* widget, gpointer data)
420 dialog = gtk_dialog_new();
421 label = gtk_label_new("\n MathML Editor \n Copyright (C) 2003 Luca Padovani \n");
422 ok = gtk_button_new_with_label("Close");
424 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
425 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
426 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area),
429 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
431 gtk_widget_show_all (dialog);
435 change_default_font_size(GtkWidget* widget, GtkSpinButton* spin)
437 g_return_if_fail(spin != NULL);
438 gtk_math_view_set_font_size( GTK_MATH_VIEW(main_area), gtk_spin_button_get_value_as_int(spin));
442 options_change_font_size(GtkWidget* widget, gboolean larger)
444 gfloat size = gtk_math_view_get_font_size (GTK_MATH_VIEW(main_area));
445 if (larger) size = size / 0.71;
446 else size = size * 0.71;
447 if (size < 1) size = 1;
448 gtk_math_view_set_font_size (GTK_MATH_VIEW(main_area), (gint) size + 0.5);
452 options_set_font_size(GtkWidget* widget, gpointer data)
461 dialog = gtk_dialog_new();
462 label = gtk_label_new("Default font size:");
463 ok = gtk_button_new_with_label("OK");
464 cancel = gtk_button_new_with_label("Cancel");
466 adj = gtk_adjustment_new (gtk_math_view_get_font_size (GTK_MATH_VIEW(main_area)), 1, 200, 1, 1, 1);
467 spin = gtk_spin_button_new (GTK_ADJUSTMENT(adj), 1, 0);
468 gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spin), TRUE);
470 gtk_signal_connect (GTK_OBJECT (ok), "clicked",
471 GTK_SIGNAL_FUNC (change_default_font_size), (gpointer) spin);
473 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
474 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
476 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
477 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
479 gtk_signal_connect_object (GTK_OBJECT (cancel), "clicked",
480 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
482 gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), 5);
484 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), ok);
485 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), cancel);
486 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
487 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), spin);
489 gtk_widget_show_all (dialog);
493 select_begin(GtkMathView* math_view, GdomeElement* first, gint state)
495 GdomeException exc = 0;
497 g_return_if_fail(math_view != NULL);
498 g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
499 g_return_if_fail(first != NULL);
501 gtk_math_view_freeze(math_view);
503 if (root_selected != NULL)
505 gtk_math_view_unselect(math_view, root_selected);
506 gdome_el_unref(root_selected, &exc);
510 root_selected = first_selected = find_element_with_ref(first);
512 if (root_selected != NULL)
514 gtk_math_view_select(math_view, root_selected);
515 gdome_el_ref(root_selected, &exc);
519 gtk_math_view_thaw(math_view);
523 select_over(GtkMathView* math_view, GdomeElement* elem, gint state)
525 GdomeElement* new_selected = NULL;
526 GdomeException exc = 0;
528 g_return_if_fail(math_view != NULL);
529 g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
530 g_return_if_fail(elem != NULL);
532 if (first_selected == NULL || elem == NULL)
535 new_selected = find_common_ancestor_with_ref(first_selected, elem);
537 if (new_selected != root_selected)
539 gtk_math_view_freeze(math_view);
540 if (root_selected != NULL)
542 gtk_math_view_unselect(math_view, root_selected);
543 gdome_el_unref(root_selected, &exc);
546 root_selected = new_selected;
547 if (root_selected != NULL)
548 gtk_math_view_select(math_view, root_selected);
549 gtk_math_view_thaw(math_view);
551 else if (new_selected != NULL)
553 gdome_el_unref(new_selected, &exc);
560 key_press_event(gpointer c,
564 g_return_val_if_fail(widget != NULL, FALSE);
565 g_return_val_if_fail(event != NULL, FALSE);
566 g_return_val_if_fail(context != NULL, FALSE);
568 if (event->type != GDK_KEY_PRESS) return FALSE;
570 switch (event->keyval)
573 edit_drop(context, event->state & GDK_MOD1_MASK, event->state & GDK_CONTROL_MASK);
576 edit_complete(context);
579 if ((event->state & (GDK_CONTROL_MASK | GDK_MOD1_MASK)) == 0 && event->keyval < 0x80)
580 edit_push_char(context, event->keyval);
588 create_widget_set(gpointer context)
590 GtkWidget* main_vbox;
593 main_vbox = gtk_vbox_new(FALSE, 1);
594 gtk_container_border_width(GTK_CONTAINER(main_vbox), 1);
595 gtk_container_add(GTK_CONTAINER(window), main_vbox);
596 gtk_widget_show(main_vbox);
598 menu_bar = get_main_menu();
599 gtk_box_pack_start(GTK_BOX(main_vbox), menu_bar, FALSE, TRUE, 0);
600 gtk_widget_show(menu_bar);
602 main_area = gtk_math_view_new(NULL, NULL);
603 gtk_widget_show(main_area);
605 //gtk_math_view_set_log_verbosity(GTK_MATH_VIEW(main_area), 3);
607 gtk_signal_connect_object (GTK_OBJECT (main_area),
608 "select_begin", GTK_SIGNAL_FUNC (select_begin),
609 (gpointer) main_area);
611 gtk_signal_connect_object (GTK_OBJECT (main_area),
612 "select_over", GTK_SIGNAL_FUNC (select_over),
613 (gpointer) main_area);
615 gtk_signal_connect_object (GTK_OBJECT(window),
616 "key_press_event", GTK_SIGNAL_FUNC(key_press_event),
619 gtk_widget_add_events(GTK_WIDGET(main_area), GDK_KEY_PRESS_MASK);
621 scrolled_area = gtk_scrolled_window_new(NULL, NULL);
622 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_area),
623 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
625 gtk_widget_show(scrolled_area);
626 gtk_container_add(GTK_CONTAINER(scrolled_area), main_area);
627 gtk_box_pack_start(GTK_BOX(main_vbox), scrolled_area, TRUE, TRUE, 0);
629 gtk_widget_show(main_vbox);
635 GtkItemFactory* item_factory;
636 GtkAccelGroup* accel_group;
637 GtkWidget* menu_item;
639 gint nmenu_items = sizeof(menu_items) / sizeof(menu_items[0]);
641 accel_group = gtk_accel_group_new();
643 item_factory = gtk_item_factory_new(GTK_TYPE_MENU_BAR, "<main>", accel_group);
645 gtk_item_factory_create_items(item_factory, nmenu_items, menu_items, NULL);
647 gtk_window_add_accel_group(GTK_WINDOW(window), accel_group);
649 return gtk_item_factory_get_widget(item_factory, "<main>");