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" },
89 { "/Options/sep1", NULL, NULL, 0, "<Separator>" },
91 { "/_Help" , NULL, NULL, 0, "<LastBranch>" },
92 { "/Help/About...", NULL, help_about, 0, NULL }
96 quick_message(const char* msg)
100 GtkWidget* okay_button;
102 /* Create the widgets */
104 dialog = gtk_dialog_new();
105 label = gtk_label_new (msg);
106 okay_button = gtk_button_new_with_label("OK");
108 gtk_widget_set_usize(dialog, 300, 100);
110 /* Ensure that the dialog box is destroyed when the user clicks ok. */
112 gtk_signal_connect_object (GTK_OBJECT (okay_button), "clicked",
113 GTK_SIGNAL_FUNC (gtk_widget_destroy), dialog);
114 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area),
117 /* Add the label, and show everything we've added to the dialog. */
119 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
120 gtk_widget_show_all (dialog);
124 load_error_msg(const char* name)
126 char* msg = g_strdup_printf("Could not load\n`%s'", name);
131 static guint edit_timeout_id;
132 extern void edit_timeout(gpointer);
135 GUI_init(int* argc, char*** argv, char* title, guint width, guint height, gpointer c)
137 gtk_init(argc, argv);
139 window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
140 gtk_window_set_title(GTK_WINDOW(window), title);
141 gtk_window_set_default_size(GTK_WINDOW(window), width, height);
142 gtk_signal_connect(GTK_OBJECT(window), "delete_event", (GtkSignalFunc) gtk_main_quit, NULL);
143 create_widget_set(context);
145 gtk_widget_show(window);
148 /*edit_timeout_id = gtk_timeout_add(50, edit_timeout, context);*/
154 GdomeException exc = 0;
156 if (first_selected != NULL)
158 gdome_el_unref(first_selected, &exc);
160 first_selected = NULL;
163 if (root_selected != NULL)
165 gdome_el_unref(root_selected, &exc);
167 root_selected = NULL;
174 GUI_load_document(GdomeDocument* doc)
176 GtkMathView* math_view;
178 g_return_val_if_fail(doc != NULL, -1);
179 g_return_val_if_fail(main_area != NULL, -1);
180 g_return_val_if_fail(GTK_IS_MATH_VIEW(main_area), -1);
182 math_view = GTK_MATH_VIEW(main_area);
184 if (!gtk_math_view_load_doc(math_view, doc)) return -1;
192 gtk_math_view_freeze(GTK_MATH_VIEW(main_area));
198 gtk_math_view_thaw(GTK_MATH_VIEW(main_area));
202 GUI_unload_document()
204 GtkMathView* math_view;
206 g_return_if_fail(main_area != NULL);
207 g_return_if_fail(GTK_IS_MATH_VIEW(main_area));
209 math_view = GTK_MATH_VIEW(main_area);
211 gtk_math_view_load_root(math_view, 0);
213 if (doc_name != NULL) g_free(doc_name);
225 GUI_set_font_manager(FontManagerId id)
228 GtkMathView* math_view;
230 g_return_if_fail(id != FONT_MANAGER_UNKNOWN);
231 g_return_if_fail(main_area != NULL);
232 g_return_if_fail(GTK_IS_MATH_VIEW(main_area));
234 t1 = id == FONT_MANAGER_T1;
236 math_view = GTK_MATH_VIEW(main_area);
238 gtk_math_view_freeze(math_view);
240 if (id != gtk_math_view_get_font_manager_type(math_view))
241 gtk_math_view_set_font_manager_type(math_view, id);
243 gtk_widget_set_sensitive(anti_aliasing(math_view, GTK_CHECK_MENU_ITEM(anti_aliasing_item)->active);
244 gtk_math_view_set_transparency(math_view, GTK_CHECK_MENU_ITEM(transparency_item)->active);
247 gtk_math_view_thaw(math_view);
252 store_filename(GtkFileSelection* selector, GtkWidget* user_data)
254 gchar* selected_filename = gtk_file_selection_get_filename (GTK_FILE_SELECTION(user_data));
255 if (selected_filename != NULL)
256 GUI_load_document(selected_filename);
260 file_close(GtkWidget* widget, gpointer data)
262 GUI_unload_document();
266 file_re_open(GtkWidget* widget, gpointer data)
268 if (doc_name != NULL) {
269 GUI_load_document(doc_name);
274 file_open(GtkWidget* widget, gpointer data)
276 GtkWidget* fs = gtk_file_selection_new("Open File");
278 gtk_signal_connect (GTK_OBJECT (GTK_FILE_SELECTION(fs)->ok_button),
279 "clicked", GTK_SIGNAL_FUNC (store_filename), (gpointer) fs);
281 /* Ensure that the dialog box is destroyed when the user clicks a button. */
283 gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(fs)->ok_button),
284 "clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
287 gtk_signal_connect_object (GTK_OBJECT (GTK_FILE_SELECTION(fs)->cancel_button),
288 "clicked", GTK_SIGNAL_FUNC (gtk_widget_destroy),
291 /* Display that dialog */
293 gtk_widget_show (fs);
297 file_output_tex(GtkWidget* widget, gpointer data)
299 g_assert(context != NULL);
300 edit_output_tex(context);
305 options_font_manager(GtkWidget* widget, FontManagerId id)
307 g_return_if_fail(id != FONT_MANAGER_UNKNOWN);
308 GUI_set_font_manager(id);
313 options_verbosity(GtkWidget* widget, guint level)
315 gtk_math_view_set_log_verbosity(GTK_MATH_VIEW(main_area), level);
319 edit_delete_selection(GtkWidget* widget, gpointer data)
321 if (root_selected != NULL)
324 gtk_math_view_freeze(GTK_MATH_VIEW(main_area));
325 printf("about to remove element %p\n", root_selected);
326 delete_element(root_selected);
327 gdome_el_unref(root_selected, &exc);
329 root_selected = NULL;
330 gtk_math_view_thaw(GTK_MATH_VIEW(main_area));
335 edit_select_parent(GtkWidget* widget, gpointer data)
337 if (root_selected != NULL)
339 GdomeException exc = 0;
340 GdomeElement* parent = gdome_n_parentNode(root_selected, &exc);
342 gdome_el_unref(root_selected, &exc);
344 root_selected = parent;
345 /* gtk_math_view_set_selection(GTK_MATH_VIEW(main_area), root_selected); */
350 edit_reset_selection(GtkWidget* widget, gpointer data)
352 if (root_selected != NULL)
354 GdomeException exc = 0;
355 /* gtk_math_view_reset_selection(GTK_MATH_VIEW(main_area), root_selected); */
356 gdome_el_unref(root_selected, &exc);
358 root_selected = NULL;
363 edit_reset(GtkWidget* widget, gpointer data)
365 g_assert(context != NULL);
366 edit_reset_tex(context);
370 insert_tex(GtkWidget* widget, GtkEntry* entry)
373 g_return_if_fail(entry != NULL);
375 text = gtk_editable_get_chars(GTK_EDITABLE(entry), 0, -1);
376 edit_push_string(context, text);
381 edit_insert(GtkWidget* widget, gpointer data)
388 dialog = gtk_dialog_new();
389 entry = gtk_entry_new();
390 ok = gtk_button_new_with_label("OK");
391 cancel = gtk_button_new_with_label("Cancel");
393 gtk_signal_connect (GTK_OBJECT (ok), "clicked",
394 GTK_SIGNAL_FUNC (insert_tex), (gpointer) entry);
396 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
397 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
399 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
400 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
402 gtk_signal_connect_object (GTK_OBJECT (cancel), "clicked",
403 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
405 gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), 5);
407 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), entry);
408 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), ok);
409 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), cancel);
411 gtk_widget_show_all (dialog);
415 help_about(GtkWidget* widget, gpointer data)
421 dialog = gtk_dialog_new();
422 label = gtk_label_new("\n MathML Editor \n Copyright (C) 2003 Luca Padovani \n");
423 ok = gtk_button_new_with_label("Close");
425 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
426 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
427 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area),
430 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
432 gtk_widget_show_all (dialog);
436 change_default_font_size(GtkWidget* widget, GtkSpinButton* spin)
438 g_return_if_fail(spin != NULL);
439 gtk_math_view_set_font_size( GTK_MATH_VIEW(main_area), gtk_spin_button_get_value_as_int(spin));
443 options_change_font_size(GtkWidget* widget, gboolean larger)
445 gfloat size = gtk_math_view_get_font_size (GTK_MATH_VIEW(main_area));
446 if (larger) size = size / 0.71;
447 else size = size * 0.71;
448 if (size < 1) size = 1;
449 gtk_math_view_set_font_size (GTK_MATH_VIEW(main_area), (gint) size + 0.5);
453 options_set_font_size(GtkWidget* widget, gpointer data)
462 dialog = gtk_dialog_new();
463 label = gtk_label_new("Default font size:");
464 ok = gtk_button_new_with_label("OK");
465 cancel = gtk_button_new_with_label("Cancel");
467 adj = gtk_adjustment_new (gtk_math_view_get_font_size (GTK_MATH_VIEW(main_area)), 1, 200, 1, 1, 1);
468 spin = gtk_spin_button_new (GTK_ADJUSTMENT(adj), 1, 0);
469 gtk_spin_button_set_numeric (GTK_SPIN_BUTTON (spin), TRUE);
471 gtk_signal_connect (GTK_OBJECT (ok), "clicked",
472 GTK_SIGNAL_FUNC (change_default_font_size), (gpointer) spin);
474 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
475 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
477 gtk_signal_connect_object (GTK_OBJECT (ok), "clicked",
478 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
480 gtk_signal_connect_object (GTK_OBJECT (cancel), "clicked",
481 GTK_SIGNAL_FUNC (gtk_widget_destroy), (gpointer) dialog);
483 gtk_container_set_border_width (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), 5);
485 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), ok);
486 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->action_area), cancel);
487 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), label);
488 gtk_container_add (GTK_CONTAINER (GTK_DIALOG(dialog)->vbox), spin);
490 gtk_widget_show_all (dialog);
494 select_begin(GtkMathView* math_view, GdomeElement* first, gint state)
496 GdomeException exc = 0;
498 g_return_if_fail(math_view != NULL);
499 g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
500 g_return_if_fail(first != NULL);
502 gtk_math_view_freeze(math_view);
504 if (root_selected != NULL)
506 gtk_math_view_unselect(math_view, root_selected);
507 gdome_el_unref(root_selected, &exc);
511 root_selected = first_selected = find_element_with_ref(first);
513 if (root_selected != NULL)
515 gtk_math_view_select(math_view, root_selected);
516 gdome_el_ref(root_selected, &exc);
520 gtk_math_view_thaw(math_view);
524 select_over(GtkMathView* math_view, GdomeElement* elem, gint state)
526 GdomeElement* new_selected = NULL;
527 GdomeException exc = 0;
529 g_return_if_fail(math_view != NULL);
530 g_return_if_fail(GTK_IS_MATH_VIEW(math_view));
531 g_return_if_fail(elem != NULL);
533 if (first_selected == NULL || elem == NULL)
536 new_selected = find_common_ancestor_with_ref(first_selected, elem);
538 if (new_selected != root_selected)
540 gtk_math_view_freeze(math_view);
541 if (root_selected != NULL)
543 gtk_math_view_unselect(math_view, root_selected);
544 gdome_el_unref(root_selected, &exc);
547 root_selected = new_selected;
548 if (root_selected != NULL)
549 gtk_math_view_select(math_view, root_selected);
550 gtk_math_view_thaw(math_view);
552 else if (new_selected != NULL)
554 gdome_el_unref(new_selected, &exc);
561 key_press_event(gpointer c,
565 g_return_val_if_fail(widget != NULL, FALSE);
566 g_return_val_if_fail(event != NULL, FALSE);
567 g_return_val_if_fail(context != NULL, FALSE);
569 if (event->type != GDK_KEY_PRESS) return FALSE;
571 switch (event->keyval)
574 edit_drop(context, event->state & GDK_MOD1_MASK, event->state & GDK_CONTROL_MASK);
577 edit_complete(context);
580 if ((event->state & (GDK_CONTROL_MASK | GDK_MOD1_MASK)) == 0 && event->keyval < 0x80)
581 edit_push_char(context, event->keyval);
589 create_widget_set(gpointer context)
591 GtkWidget* main_vbox;
594 main_vbox = gtk_vbox_new(FALSE, 1);
595 gtk_container_border_width(GTK_CONTAINER(main_vbox), 1);
596 gtk_container_add(GTK_CONTAINER(window), main_vbox);
597 gtk_widget_show(main_vbox);
599 menu_bar = get_main_menu();
600 gtk_box_pack_start(GTK_BOX(main_vbox), menu_bar, FALSE, TRUE, 0);
601 gtk_widget_show(menu_bar);
603 main_area = gtk_math_view_new(NULL, NULL);
604 gtk_widget_show(main_area);
606 //gtk_math_view_set_log_verbosity(GTK_MATH_VIEW(main_area), 3);
608 gtk_signal_connect_object (GTK_OBJECT (main_area),
609 "select_begin", GTK_SIGNAL_FUNC (select_begin),
610 (gpointer) main_area);
612 gtk_signal_connect_object (GTK_OBJECT (main_area),
613 "select_over", GTK_SIGNAL_FUNC (select_over),
614 (gpointer) main_area);
616 gtk_signal_connect_object (GTK_OBJECT(window),
617 "key_press_event", GTK_SIGNAL_FUNC(key_press_event),
620 gtk_widget_add_events(GTK_WIDGET(main_area), GDK_KEY_PRESS_MASK);
622 scrolled_area = gtk_scrolled_window_new(NULL, NULL);
623 gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(scrolled_area),
624 GTK_POLICY_AUTOMATIC, GTK_POLICY_ALWAYS);
626 gtk_widget_show(scrolled_area);
627 gtk_container_add(GTK_CONTAINER(scrolled_area), main_area);
628 gtk_box_pack_start(GTK_BOX(main_vbox), scrolled_area, TRUE, TRUE, 0);
630 gtk_widget_show(main_vbox);
637 GtkItemFactory* item_factory;
638 GtkAccelGroup* accel_group;
639 GtkWidget* menu_item;
641 gint nmenu_items = sizeof(menu_items) / sizeof(menu_items[0]);
643 accel_group = gtk_accel_group_new();
645 item_factory = gtk_item_factory_new(GTK_TYPE_MENU_BAR, "<main>", accel_group);
647 gtk_item_factory_create_items(item_factory, nmenu_items, menu_items, NULL);
649 gtk_window_add_accel_group(GTK_WINDOW(window), accel_group);
651 return gtk_item_factory_get_widget(item_factory, "<main>");