Desktop
/* editor.c */
#include <stdlib.h>
#include "editor.h"
#include "../config.h"
/* 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);
static void _on_help_about(GtkWidget * widget, gpointer data)
{
Editor * editor = data;
static GtkWidget * window = NULL;
char const * authors[] = { "Pierre 'khorben' Pronchery", 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), "GPLv2");
free(buf);
gtk_widget_show(window);
#else
if(window != NULL)
{
gtk_widget_show(window);
return;
}
window = gtk_window_new(GTK_WINDOW_TOPLEVEL);
gtk_window_set_transient(GTK_WINDOW(window),
GTK_WINDOW(editor->window));
gtk_window_set_title(GTK_WINDOW(window), "About Editor");
gtk_widget_show_all(window);
#endif
}
static gboolean _about_on_closex(GtkWidget * widget, GdkEvent * event,
gpointer data)
{
gtk_widget_hide(widget);
return TRUE;
}
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);
}