/* editor.c */ #include <stdlib.h> #include <string.h> #include "editor.h" #include "../config.h" /* constants */ static char const * _authors[] = { "Pierre 'khorben' Pronchery", NULL }; static char const _license[] = "GPLv2"; /* Editor */ static GtkWidget * _new_menubar(Editor * editor); /* callbacks */ static void _on_close(GtkWidget * widget, gpointer data); static gboolean _on_closex(GtkWidget * widget, GdkEvent * event, gpointer data); static void _on_edit_preferences(GtkWidget * widget, gpointer data); static void _on_file_close(GtkWidget * widget, gpointer data); static void _on_file_new(GtkWidget * widget, gpointer data); static void _on_file_open(GtkWidget * widget, gpointer data); static void _on_file_save(GtkWidget * widget, gpointer data); static void _on_file_save_as(GtkWidget * widget, gpointer data); static void _on_help_about(GtkWidget * widget, gpointer data); static void _on_new(GtkWidget * widget, gpointer data); static void _on_open(GtkWidget * widget, gpointer data); struct _menu { char * name; GtkSignalFunc callback; char * stock; }; struct _menubar { char * name; struct _menu * menu; }; struct _menu _menu_file[] = { { "_New", G_CALLBACK(_on_file_new), GTK_STOCK_NEW }, { "_Open", G_CALLBACK(_on_file_open), GTK_STOCK_OPEN }, { "", NULL, NULL }, { "_Save", G_CALLBACK(_on_file_save), GTK_STOCK_SAVE }, { "_Save as...", G_CALLBACK(_on_file_save_as), GTK_STOCK_SAVE_AS }, { "", NULL, NULL }, { "_Close", G_CALLBACK(_on_file_close), GTK_STOCK_CLOSE }, { NULL, NULL, NULL } }; struct _menu _menu_edit[] = { { "_Cut", NULL, GTK_STOCK_CUT }, { "_Copy", NULL, GTK_STOCK_COPY }, { "_Paste", NULL, GTK_STOCK_PASTE }, { "", NULL, NULL }, { "_Preferences", G_CALLBACK(_on_edit_preferences), GTK_STOCK_PREFERENCES }, { NULL, NULL, NULL } }; struct _menu _menu_help[] = { #if GTK_CHECK_VERSION(2, 6, 0) { "_About", G_CALLBACK(_on_help_about), GTK_STOCK_ABOUT }, #else { "_About", G_CALLBACK(_on_help_about), NULL }, #endif { NULL, NULL, NULL } }; static struct _menubar _menubar[] = { { "_File", _menu_file }, { "_Edit", _menu_edit }, { "_Help", _menu_help }, { NULL, NULL } }; Editor * editor_new(void) { Editor * editor; GtkWidget * vbox; GtkWidget * toolbar; GtkToolItem * tb_button; GtkWidget * widget; if((editor = malloc(sizeof(*editor))) == NULL) return NULL; editor->filename = NULL; editor->saved = 1; /* widgets */ editor->window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(editor->window), 512, 384); gtk_window_set_title(GTK_WINDOW(editor->window), "Text editor"); g_signal_connect(G_OBJECT(editor->window), "delete_event", G_CALLBACK( _on_closex), editor); vbox = gtk_vbox_new(FALSE, 0); /* menubar */ gtk_box_pack_start(GTK_BOX(vbox), _new_menubar(editor), FALSE, FALSE, 0); /* toolbar */ toolbar = gtk_toolbar_new(); tb_button = gtk_tool_button_new_from_stock(GTK_STOCK_NEW); g_signal_connect(G_OBJECT(tb_button), "clicked", G_CALLBACK(_on_new), editor); gtk_toolbar_insert(GTK_TOOLBAR(toolbar), tb_button, -1); tb_button = gtk_tool_button_new_from_stock(GTK_STOCK_OPEN); g_signal_connect(G_OBJECT(tb_button), "clicked", G_CALLBACK(_on_open), editor); gtk_toolbar_insert(GTK_TOOLBAR(toolbar), tb_button, -1); tb_button = gtk_tool_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(tb_button), "clicked", G_CALLBACK(_on_close), editor); gtk_toolbar_insert(GTK_TOOLBAR(toolbar), tb_button, -1); gtk_box_pack_start(GTK_BOX(vbox), toolbar, FALSE, FALSE, 0); /* view */ widget = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); editor->view = gtk_text_view_new(); gtk_container_add(GTK_CONTAINER(widget), editor->view); gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 0); /* statusbar */ editor->statusbar = gtk_statusbar_new(); gtk_box_pack_start(GTK_BOX(vbox), editor->statusbar, FALSE, FALSE, 0); /* preferences */ editor->pr_window = NULL; gtk_container_add(GTK_CONTAINER(editor->window), vbox); gtk_widget_show_all(editor->window); return editor; } static GtkWidget * _new_menubar(Editor * editor) { GtkWidget * tb_menubar; GtkWidget * menu; GtkWidget * menubar; GtkWidget * menuitem; unsigned int i; unsigned int j; struct _menu * p; tb_menubar = gtk_menu_bar_new(); for(i = 0; _menubar[i].name != NULL; i++) { menubar = gtk_menu_item_new_with_mnemonic(_menubar[i].name); menu = gtk_menu_new(); for(j = 0; _menubar[i].menu[j].name != NULL; j++) { p = &_menubar[i].menu[j]; if(p->name[0] == '\0') menuitem = gtk_separator_menu_item_new(); else if(p->stock == 0) menuitem = gtk_menu_item_new_with_mnemonic( p->name); else menuitem = gtk_image_menu_item_new_from_stock( p->stock, NULL); if(p->callback != NULL) g_signal_connect(G_OBJECT(menuitem), "activate", G_CALLBACK(p->callback), editor); else gtk_widget_set_sensitive(menuitem, FALSE); gtk_menu_shell_append(GTK_MENU_SHELL(menu), menuitem); } gtk_menu_item_set_submenu(GTK_MENU_ITEM(menubar), menu); gtk_menu_bar_append(GTK_MENU_BAR(tb_menubar), menubar); } return tb_menubar; } static int _editor_error(Editor * editor, char const * message, int ret) { GtkWidget * dialog; dialog = gtk_message_dialog_new(GTK_WINDOW(editor->window), GTK_DIALOG_DESTROY_WITH_PARENT, GTK_MESSAGE_ERROR, GTK_BUTTONS_CLOSE, "%s", message); g_signal_connect(G_OBJECT(dialog), "response", G_CALLBACK( gtk_widget_destroy), NULL); gtk_widget_show(dialog); return ret; } static gboolean _on_closex(GtkWidget * widget, GdkEvent * event, gpointer data) { Editor * editor = data; return editor_close(editor); } static void _on_close(GtkWidget * widget, gpointer data) { Editor * editor = data; editor_close(editor); } static void _preferences_set(Editor * editor); /* callbacks */ static void _preferences_on_cancel(GtkWidget * widget, gpointer data); static gboolean _preferences_on_close(GtkWidget * widget, GdkEvent * event, gpointer data); static void _preferences_on_ok(GtkWidget * widget, gpointer data); static void _on_edit_preferences(GtkWidget * widget, gpointer data) { Editor * editor = data; GtkWidget * vbox; GtkWidget * hbox; GtkSizeGroup * group; if(editor->pr_window != NULL) { gtk_widget_show(editor->pr_window); return; } editor->pr_window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_resizable(GTK_WINDOW(editor->pr_window), FALSE); gtk_window_set_title(GTK_WINDOW(editor->pr_window), "Text editor preferences"); gtk_window_set_transient_for(GTK_WINDOW(editor->pr_window), GTK_WINDOW( editor->window)); g_signal_connect(G_OBJECT(editor->pr_window), "delete_event", G_CALLBACK(_preferences_on_close), editor); vbox = gtk_vbox_new(FALSE, 0); /* dialog */ hbox = gtk_hbox_new(FALSE, 0); group = gtk_size_group_new(GTK_SIZE_GROUP_HORIZONTAL); widget = gtk_button_new_from_stock(GTK_STOCK_OK); gtk_size_group_add_widget(group, widget); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK( _preferences_on_ok), editor); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); widget = gtk_button_new_from_stock(GTK_STOCK_CANCEL); gtk_size_group_add_widget(group, widget); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK( _preferences_on_cancel), editor); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 4); gtk_container_add(GTK_CONTAINER(editor->pr_window), vbox); _preferences_set(editor); gtk_widget_show_all(editor->pr_window); } static void _preferences_set(Editor * editor) { } static void _preferences_on_cancel(GtkWidget * widget, gpointer data) { Editor * editor = data; gtk_widget_hide(editor->pr_window); _preferences_set(editor); } static gboolean _preferences_on_close(GtkWidget * widget, GdkEvent * event, gpointer data) { Editor * editor = data; _preferences_on_cancel(widget, editor); return FALSE; } static void _preferences_on_ok(GtkWidget * widget, gpointer data) { Editor * editor = data; gtk_widget_hide(editor->pr_window); /* FIXME apply settings */ } static void _on_file_close(GtkWidget * widget, gpointer data) { Editor * editor = data; /* FIXME ask the user whether to save or not */ gtk_main_quit(); } static void _on_file_new(GtkWidget * widget, gpointer data) { Editor * editor = data; editor_open(editor, NULL); } static void _on_file_open(GtkWidget * widget, gpointer data) { Editor * editor = data; editor_open_dialog(editor); } static void _on_file_save(GtkWidget * widget, gpointer data) { } static void _on_file_save_as(GtkWidget * widget, gpointer data) { } /* callbacks */ static gboolean _about_on_closex(GtkWidget * widget, GdkEvent * event, gpointer data); #if !GTK_CHECK_VERSION(2, 6, 0) static void _about_on_close(GtkWidget * widget, gpointer data); static void _about_on_credits(GtkWidget * widget, gpointer data); static void _about_on_license(GtkWidget * widget, gpointer data); #endif static void _on_help_about(GtkWidget * widget, gpointer data) { Editor * editor = data; static GtkWidget * window = NULL; char const copyright[] = "Copyright (c) 2006 khorben"; #if GTK_CHECK_VERSION(2, 6, 0) gsize cnt = 65536; gchar * buf; if(window != NULL) { gtk_widget_show(window); return; } if((buf = malloc(sizeof(*buf) * cnt)) == NULL) { _editor_error(editor, "malloc", 0); return; } window = gtk_about_dialog_new(); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW( editor->window)); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK( _about_on_closex), NULL); gtk_about_dialog_set_name(GTK_ABOUT_DIALOG(window), PACKAGE); gtk_about_dialog_set_version(GTK_ABOUT_DIALOG(window), VERSION); gtk_about_dialog_set_copyright(GTK_ABOUT_DIALOG(window), copyright); gtk_about_dialog_set_authors(GTK_ABOUT_DIALOG(window), _authors); if(g_file_get_contents("/usr/share/common-licenses/GPL-2", &buf, &cnt, NULL) == TRUE) gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(window), buf); else gtk_about_dialog_set_license(GTK_ABOUT_DIALOG(window), _license); free(buf); gtk_widget_show(window); } #else GtkWidget * vbox; GtkWidget * hbox; GtkWidget * button; if(window != NULL) { gtk_widget_show(window); return; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "About Editor"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW( editor->window)); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK( _about_on_closex), window); vbox = gtk_vbox_new(FALSE, 2); gtk_box_pack_start(GTK_BOX(vbox), gtk_label_new(PACKAGE " " VERSION), FALSE, FALSE, 2); gtk_box_pack_start(GTK_BOX(vbox), gtk_label_new(copyright), FALSE, FALSE, 2); hbox = gtk_hbox_new(TRUE, 4); button = gtk_button_new_with_mnemonic("C_redits"); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_credits), window); gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 4); button = gtk_button_new_with_mnemonic("_License"); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_license), window); gtk_box_pack_start(GTK_BOX(hbox), button, FALSE, TRUE, 4); button = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(button), "clicked", G_CALLBACK( _about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), button, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, FALSE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } #endif /* !GTK_CHECK_VERSION(2, 6, 0) */ static gboolean _about_on_closex(GtkWidget * widget, GdkEvent * event, gpointer data) { gtk_widget_hide(widget); return TRUE; } #if !GTK_CHECK_VERSION(2, 6, 0) static void _about_on_close(GtkWidget * widget, gpointer data) { GtkWidget * window = data; gtk_widget_hide(window); } static void _about_on_credits(GtkWidget * widget, gpointer data) { static GtkWidget * window = NULL; GtkWidget * about = data; GtkWidget * vbox; GtkWidget * notebook; GtkWidget * textview; GtkTextBuffer * tbuf; GtkTextIter iter; GtkWidget * hbox; size_t i; if(window != NULL) { gtk_widget_show(window); return; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(window), 200, 200); gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "Credits"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(about)); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK( _about_on_closex), NULL); vbox = gtk_vbox_new(FALSE, 0); textview = gtk_text_view_new(); gtk_text_view_set_editable(GTK_TEXT_VIEW(textview), FALSE); tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview)); gtk_text_buffer_set_text(tbuf, "", 0); for(i = 0; _authors[i] != NULL; i++) { gtk_text_buffer_get_end_iter(tbuf, &iter); gtk_text_buffer_insert(tbuf, &iter, _authors[i], strlen( _authors[i])); } widget = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(widget), GTK_SHADOW_ETCHED_IN); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_container_add(GTK_CONTAINER(widget), textview); notebook = gtk_notebook_new(); gtk_notebook_append_page(GTK_NOTEBOOK(notebook), widget, gtk_label_new("Written by")); gtk_box_pack_start(GTK_BOX(vbox), notebook, TRUE, TRUE, 4); hbox = gtk_hbox_new(FALSE, 0); widget = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK( _about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } static void _about_on_license(GtkWidget * widget, gpointer data) { static GtkWidget * window = NULL; GtkWidget * about = data; GtkWidget * vbox; GtkWidget * textview; GtkTextBuffer * tbuf; GtkWidget * hbox; if(window != NULL) { gtk_widget_show(window); return; } window = gtk_window_new(GTK_WINDOW_TOPLEVEL); gtk_window_set_default_size(GTK_WINDOW(window), 200, 200); gtk_container_set_border_width(GTK_CONTAINER(window), 4); gtk_window_set_title(GTK_WINDOW(window), "License"); gtk_window_set_transient_for(GTK_WINDOW(window), GTK_WINDOW(about)); g_signal_connect(G_OBJECT(window), "delete_event", G_CALLBACK( _about_on_closex), NULL); vbox = gtk_vbox_new(FALSE, 0); textview = gtk_text_view_new(); gtk_text_view_set_editable(GTK_TEXT_VIEW(textview), FALSE); tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(textview)); gtk_text_buffer_set_text(tbuf, _license, strlen(_license)); widget = gtk_scrolled_window_new(NULL, NULL); gtk_scrolled_window_set_shadow_type(GTK_SCROLLED_WINDOW(widget), GTK_SHADOW_ETCHED_IN); gtk_scrolled_window_set_policy(GTK_SCROLLED_WINDOW(widget), GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC); gtk_container_add(GTK_CONTAINER(widget), textview); gtk_box_pack_start(GTK_BOX(vbox), widget, TRUE, TRUE, 4); hbox = gtk_hbox_new(FALSE, 0); widget = gtk_button_new_from_stock(GTK_STOCK_CLOSE); g_signal_connect(G_OBJECT(widget), "clicked", G_CALLBACK(_about_on_close), window); gtk_box_pack_end(GTK_BOX(hbox), widget, FALSE, TRUE, 4); gtk_box_pack_start(GTK_BOX(vbox), hbox, FALSE, TRUE, 4); gtk_container_add(GTK_CONTAINER(window), vbox); gtk_widget_show_all(window); } #endif /* !GTK_CHECK_VERSION(2, 6, 0) */ static void _on_new(GtkWidget * widget, gpointer data) { Editor * editor = data; editor_open(editor, NULL); } static void _on_open(GtkWidget * widget, gpointer data) { Editor * editor = data; editor_open_dialog(editor); } void editor_delete(Editor * editor) { free(editor); } /* useful */ gboolean editor_close(Editor * editor) { if(editor->saved) { gtk_main_quit(); return FALSE; } /* FIXME dialog for confirmation */ return TRUE; } void editor_open(Editor * editor, char const * filename) { FILE * fp; GtkTextBuffer * tbuf; GtkTextIter iter; char buf[BUFSIZ]; size_t len; /* FIXME close previously opened file */ if(filename == NULL) return; if((fp = fopen(filename, "r")) == NULL) { _editor_error(editor, filename, 0); return; } tbuf = gtk_text_view_get_buffer(GTK_TEXT_VIEW(editor->view)); gtk_text_buffer_set_text(tbuf, "", 0); while((len = fread(buf, sizeof(char), sizeof(buf), fp)) > 0) { gtk_text_buffer_get_end_iter(tbuf, &iter); gtk_text_buffer_insert(tbuf, &iter, buf, len); } fclose(fp); } void editor_open_dialog(Editor * editor) { GtkWidget * dialog; int ret; char * filename; dialog = gtk_file_chooser_dialog_new("Open file...", GTK_WINDOW(editor->window), GTK_FILE_CHOOSER_ACTION_OPEN, GTK_STOCK_CANCEL, 1, GTK_STOCK_OPEN, 0, NULL); if((ret = gtk_dialog_run(GTK_DIALOG(dialog))) == 0) filename = gtk_file_chooser_get_filename(GTK_FILE_CHOOSER( dialog)); gtk_widget_destroy(dialog); editor_open(editor, filename); }