Implement diagram operations in UI.
* Now diagrams can be created, loaded and saved. * Define descriptions and accelerators for actions. * Set irrelevant actions unsensitive. * Also remove redundant comments for clarity.
This commit is contained in:
parent
2c3345a4fd
commit
4a946b3241
@ -35,7 +35,6 @@
|
||||
* the documentation or the static library.
|
||||
*/
|
||||
|
||||
|
||||
typedef struct _SymbolMenuItem SymbolMenuItem;
|
||||
typedef struct _SymbolMenuData SymbolMenuData;
|
||||
|
||||
@ -77,6 +76,7 @@ struct _SymbolMenuData
|
||||
struct _LdWindowMainPrivate
|
||||
{
|
||||
GtkUIManager *ui_manager;
|
||||
GtkActionGroup *action_group;
|
||||
|
||||
GtkWidget *vbox;
|
||||
GtkWidget *hbox;
|
||||
@ -86,6 +86,9 @@ struct _LdWindowMainPrivate
|
||||
|
||||
LdLibrary *library;
|
||||
|
||||
LdDocument *document;
|
||||
gchar *filename;
|
||||
|
||||
GtkWidget *canvas_window;
|
||||
LdCanvas *canvas;
|
||||
|
||||
@ -126,6 +129,30 @@ static void on_ui_proxy_disconnected (GtkUIManager *ui, GtkAction *action,
|
||||
static void on_menu_item_selected (GtkWidget *item, LdWindowMain *window);
|
||||
static void on_menu_item_deselected (GtkItem *item, LdWindowMain *window);
|
||||
|
||||
static gboolean on_delete (LdWindowMain *self, GdkEvent *event,
|
||||
gpointer user_data);
|
||||
static void update_title (LdWindowMain *self);
|
||||
static void action_set_sensitive (LdWindowMain *self, const gchar *name,
|
||||
gboolean sensitive);
|
||||
|
||||
static gchar *diagram_get_name (LdWindowMain *self);
|
||||
static void diagram_set_filename (LdWindowMain *self, gchar *filename);
|
||||
static void diagram_new (LdWindowMain *self);
|
||||
static void diagram_save (LdWindowMain *self);
|
||||
|
||||
static GtkFileFilter *diagram_get_file_filter (void);
|
||||
static void diagram_show_open_dialog (LdWindowMain *self);
|
||||
static void diagram_show_save_as_dialog (LdWindowMain *self);
|
||||
|
||||
static gboolean may_close_diagram (LdWindowMain *self,
|
||||
const gchar *dialog_message);
|
||||
static gboolean may_quit (LdWindowMain *self);
|
||||
|
||||
static void on_action_new (GtkAction *action, LdWindowMain *self);
|
||||
static void on_action_open (GtkAction *action, LdWindowMain *self);
|
||||
static void on_action_save (GtkAction *action, LdWindowMain *self);
|
||||
static void on_action_save_as (GtkAction *action, LdWindowMain *self);
|
||||
static void on_action_quit (GtkAction *action, LdWindowMain *self);
|
||||
static void on_action_about (GtkAction *action, LdWindowMain *self);
|
||||
|
||||
|
||||
@ -134,42 +161,50 @@ static void on_action_about (GtkAction *action, LdWindowMain *self);
|
||||
/* Actions for menus, toolbars, accelerators. */
|
||||
static GtkActionEntry wm_action_entries[] =
|
||||
{
|
||||
{"FileMenu", NULL, Q_("_File")},
|
||||
{"New", GTK_STOCK_NEW, NULL, NULL,
|
||||
Q_("Create a new document"), NULL},
|
||||
{"Open", GTK_STOCK_OPEN, NULL, NULL,
|
||||
Q_("Open a document"), NULL},
|
||||
{"Save", GTK_STOCK_SAVE, NULL, NULL,
|
||||
Q_("Save the current document"), NULL},
|
||||
{"SaveAs", GTK_STOCK_SAVE_AS, NULL, NULL,
|
||||
Q_("Save the current document with another name"), NULL},
|
||||
{"FileMenu", NULL, Q_("_File"), NULL, NULL, NULL},
|
||||
{"New", GTK_STOCK_NEW, Q_("_New"), "<Ctrl>N",
|
||||
Q_("Create a new diagram"),
|
||||
G_CALLBACK (on_action_new)},
|
||||
{"Open", GTK_STOCK_OPEN, Q_("_Open..."), "<Ctrl>O",
|
||||
Q_("Open a diagram"),
|
||||
G_CALLBACK (on_action_open)},
|
||||
{"Save", GTK_STOCK_SAVE, Q_("_Save"), "<Ctrl>S",
|
||||
Q_("Save the current diagram"),
|
||||
G_CALLBACK (on_action_save)},
|
||||
{"SaveAs", GTK_STOCK_SAVE_AS, Q_("Save _As..."), "<Shift><Ctrl>S",
|
||||
Q_("Save the current diagram with another name"),
|
||||
G_CALLBACK (on_action_save_as)},
|
||||
{"Export", NULL, Q_("_Export"), NULL,
|
||||
Q_("Export the document"), NULL},
|
||||
{"Quit", GTK_STOCK_QUIT, NULL, NULL,
|
||||
Q_("Export the diagram"),
|
||||
NULL},
|
||||
{"Quit", GTK_STOCK_QUIT, Q_("_Quit"), "<Ctrl>Q",
|
||||
Q_("Quit the application"),
|
||||
G_CALLBACK (gtk_main_quit)},
|
||||
G_CALLBACK (on_action_quit)},
|
||||
|
||||
{"EditMenu", NULL, Q_("_Edit")},
|
||||
{"EditMenu", NULL, Q_("_Edit"), NULL, NULL, NULL},
|
||||
/* XXX: Don't implement these yet: */
|
||||
/*
|
||||
{"Cut", GTK_STOCK_CUT, NULL, NULL, NULL, NULL},
|
||||
{"Copy", GTK_STOCK_COPY, NULL, NULL, NULL, NULL},
|
||||
{"Paste", GTK_STOCK_PASTE, NULL, NULL, NULL, NULL},
|
||||
{"Cut", GTK_STOCK_CUT, Q_("Cu_t"), "<Ctrl>X", NULL, NULL},
|
||||
{"Copy", GTK_STOCK_COPY, Q_("_Copy"), "<Ctrl>C", NULL, NULL},
|
||||
{"Paste", GTK_STOCK_PASTE, Q_("_Paste"), "<Ctrl>V", NULL, NULL},
|
||||
*/
|
||||
{"Delete", GTK_STOCK_DELETE, NULL, NULL,
|
||||
Q_("Delete the contents of the selection"), NULL},
|
||||
{"SelectAll", GTK_STOCK_SELECT_ALL, NULL, NULL,
|
||||
Q_("Select all objects in the document"), NULL},
|
||||
{"Delete", GTK_STOCK_DELETE, Q_("_Delete"), "Delete",
|
||||
Q_("Delete the contents of the selection"),
|
||||
NULL},
|
||||
{"SelectAll", GTK_STOCK_SELECT_ALL, Q_("Select _All"), "<Ctrl>A",
|
||||
Q_("Select all objects in the diagram"),
|
||||
NULL},
|
||||
|
||||
/* TODO: View menu (zooming). */
|
||||
|
||||
{"HelpMenu", NULL, Q_("_Help")},
|
||||
{"About", GTK_STOCK_ABOUT, NULL, NULL,
|
||||
{"HelpMenu", NULL, Q_("_Help"), NULL, NULL, NULL},
|
||||
{"About", GTK_STOCK_ABOUT, Q_("_About"), NULL,
|
||||
Q_("Show a dialog about this application"),
|
||||
G_CALLBACK (on_action_about)}
|
||||
};
|
||||
|
||||
|
||||
/* ===== Generic widget methods ============================================ */
|
||||
|
||||
/**
|
||||
* ld_window_main_new:
|
||||
@ -200,7 +235,6 @@ static void
|
||||
ld_window_main_init (LdWindowMain *self)
|
||||
{
|
||||
LdWindowMainPrivate *priv;
|
||||
GtkActionGroup *action_group;
|
||||
GError *error;
|
||||
|
||||
self->priv = priv = G_TYPE_INSTANCE_GET_PRIVATE
|
||||
@ -214,10 +248,11 @@ ld_window_main_init (LdWindowMain *self)
|
||||
g_signal_connect (priv->ui_manager, "disconnect-proxy",
|
||||
G_CALLBACK (on_ui_proxy_disconnected), self);
|
||||
|
||||
action_group = gtk_action_group_new ("MainActions");
|
||||
gtk_action_group_add_actions (action_group, wm_action_entries,
|
||||
priv->action_group = gtk_action_group_new ("MainActions");
|
||||
gtk_action_group_add_actions (priv->action_group, wm_action_entries,
|
||||
G_N_ELEMENTS (wm_action_entries), self);
|
||||
gtk_ui_manager_insert_action_group (priv->ui_manager, action_group, 0);
|
||||
gtk_ui_manager_insert_action_group (priv->ui_manager,
|
||||
priv->action_group, 0);
|
||||
|
||||
error = NULL;
|
||||
gtk_ui_manager_add_ui_from_file
|
||||
@ -263,6 +298,7 @@ ld_window_main_init (LdWindowMain *self)
|
||||
|
||||
/* Configure the window. */
|
||||
g_signal_connect (self, "destroy", G_CALLBACK (gtk_main_quit), NULL);
|
||||
g_signal_connect (self, "delete-event", G_CALLBACK (on_delete), NULL);
|
||||
|
||||
gtk_window_add_accel_group (GTK_WINDOW (self),
|
||||
gtk_ui_manager_get_accel_group (priv->ui_manager));
|
||||
@ -291,15 +327,25 @@ ld_window_main_init (LdWindowMain *self)
|
||||
g_signal_handler_block (priv->canvas,
|
||||
priv->symbol_menu.button_release_handler);
|
||||
|
||||
|
||||
|
||||
/* Initialize the backend. */
|
||||
priv->document = ld_document_new ();
|
||||
|
||||
g_signal_connect_data (priv->document, "changed",
|
||||
G_CALLBACK (update_title), self,
|
||||
NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED);
|
||||
|
||||
priv->library = ld_library_new ();
|
||||
ld_library_load (priv->library, PROJECT_SHARE_DIR "library");
|
||||
|
||||
ld_canvas_set_document (priv->canvas, priv->document);
|
||||
ld_canvas_set_library (priv->canvas, priv->library);
|
||||
|
||||
load_library_toolbar (self);
|
||||
diagram_set_filename (self, NULL);
|
||||
|
||||
action_set_sensitive (self, "Export", FALSE);
|
||||
action_set_sensitive (self, "Delete", FALSE);
|
||||
action_set_sensitive (self, "SelectAll", FALSE);
|
||||
|
||||
/* Realize the window. */
|
||||
gtk_widget_show_all (GTK_WIDGET (self));
|
||||
@ -321,12 +367,74 @@ ld_window_main_finalize (GObject *gobject)
|
||||
* and gtk_object_destroy () should be used for it.
|
||||
*/
|
||||
g_object_unref (self->priv->library);
|
||||
g_object_unref (self->priv->document);
|
||||
g_object_unref (self->priv->ui_manager);
|
||||
g_object_unref (self->priv->action_group);
|
||||
|
||||
if (self->priv->filename)
|
||||
g_free (self->priv->filename);
|
||||
|
||||
/* Chain up to the parent class. */
|
||||
G_OBJECT_CLASS (ld_window_main_parent_class)->finalize (gobject);
|
||||
}
|
||||
|
||||
/*
|
||||
* on_delete:
|
||||
*
|
||||
* Handle requests to close the window.
|
||||
*/
|
||||
static gboolean
|
||||
on_delete (LdWindowMain *self, GdkEvent *event, gpointer user_data)
|
||||
{
|
||||
return !may_quit (self);
|
||||
}
|
||||
|
||||
/*
|
||||
* update_title:
|
||||
*
|
||||
* Update the title of the window.
|
||||
*/
|
||||
static void
|
||||
update_title (LdWindowMain *self)
|
||||
{
|
||||
gchar *title;
|
||||
gchar *name;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
name = diagram_get_name (self);
|
||||
title = g_strdup_printf ("%s%s - %s",
|
||||
ld_document_get_modified (self->priv->document) ? "*" : "",
|
||||
name, PROJECT_NAME);
|
||||
gtk_window_set_title (GTK_WINDOW (self), title);
|
||||
|
||||
g_free (title);
|
||||
g_free (name);
|
||||
}
|
||||
|
||||
/*
|
||||
* action_set_sensitive:
|
||||
* @sensitive: The sensitivity state.
|
||||
*
|
||||
* Set sensitivity of an action.
|
||||
*/
|
||||
static void
|
||||
action_set_sensitive (LdWindowMain *self, const gchar *name, gboolean sensitive)
|
||||
{
|
||||
GtkAction *action;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
g_return_if_fail (name != NULL);
|
||||
|
||||
action = gtk_action_group_get_action (self->priv->action_group, name);
|
||||
g_return_if_fail (action != NULL);
|
||||
|
||||
gtk_action_set_sensitive (action, sensitive);
|
||||
}
|
||||
|
||||
|
||||
/* ===== Library toolbar and symbol menu =================================== */
|
||||
|
||||
/*
|
||||
* load_library_toolbar:
|
||||
*
|
||||
@ -337,6 +445,8 @@ load_library_toolbar (LdWindowMain *self)
|
||||
{
|
||||
GSList *categories;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
/* Clear the toolbar first, if there was already something in it. */
|
||||
gtk_container_foreach (GTK_CONTAINER (self->priv->library_toolbar),
|
||||
(GtkCallback) gtk_widget_destroy, NULL);
|
||||
@ -423,8 +533,6 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
|
||||
LdSymbolCategory *cat;
|
||||
SymbolMenuData *data;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (user_data));
|
||||
|
||||
cat = g_object_get_data (G_OBJECT (toggle_button), "category");
|
||||
self = LD_WINDOW_MAIN (user_data);
|
||||
priv = self->priv;
|
||||
@ -512,11 +620,6 @@ on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data)
|
||||
redraw_symbol_menu (self);
|
||||
}
|
||||
|
||||
/*
|
||||
* on_canvas_exposed:
|
||||
*
|
||||
* Draw a symbol menu.
|
||||
*/
|
||||
static gboolean
|
||||
on_canvas_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
|
||||
{
|
||||
@ -573,8 +676,6 @@ on_canvas_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data)
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
|
||||
|
||||
static gboolean
|
||||
on_canvas_motion_notify (GtkWidget *widget, GdkEventMotion *event,
|
||||
gpointer user_data)
|
||||
@ -632,11 +733,9 @@ on_canvas_button_release (GtkWidget *widget, GdkEventButton *event,
|
||||
return FALSE;
|
||||
}
|
||||
|
||||
/*
|
||||
* on_ui_proxy_connected:
|
||||
*
|
||||
* An item was connected to the manager.
|
||||
*/
|
||||
|
||||
/* ===== Menu items processing ============================================= */
|
||||
|
||||
static void
|
||||
on_ui_proxy_connected (GtkUIManager *ui, GtkAction *action,
|
||||
GtkWidget *proxy, LdWindowMain *window)
|
||||
@ -650,11 +749,6 @@ on_ui_proxy_connected (GtkUIManager *ui, GtkAction *action,
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* on_ui_proxy_disconnected:
|
||||
*
|
||||
* An item was disconnected from the manager.
|
||||
*/
|
||||
static void
|
||||
on_ui_proxy_disconnected (GtkUIManager *ui, GtkAction *action,
|
||||
GtkWidget *proxy, LdWindowMain *window)
|
||||
@ -691,6 +785,325 @@ on_menu_item_deselected (GtkItem *item, LdWindowMain *window)
|
||||
window->priv->statusbar_menu_context_id);
|
||||
}
|
||||
|
||||
|
||||
/* ===== Diagram handling ================================================== */
|
||||
|
||||
/*
|
||||
* diagram_get_name:
|
||||
*
|
||||
* Get the name of the currently opened diagram.
|
||||
*/
|
||||
static gchar *
|
||||
diagram_get_name (LdWindowMain *self)
|
||||
{
|
||||
g_return_val_if_fail (LD_IS_WINDOW_MAIN (self), NULL);
|
||||
|
||||
if (self->priv->filename)
|
||||
return g_path_get_basename (self->priv->filename);
|
||||
else
|
||||
return g_strdup (_("Unsaved Diagram"));
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_set_filename:
|
||||
* @filename: The new filename. May be NULL for a new, yet unsaved, file.
|
||||
*
|
||||
* Set the filename corresponding to the currently opened document.
|
||||
* The function takes ownership of the string.
|
||||
*/
|
||||
static void
|
||||
diagram_set_filename (LdWindowMain *self, gchar *filename)
|
||||
{
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
if (self->priv->filename)
|
||||
g_free (self->priv->filename);
|
||||
self->priv->filename = filename;
|
||||
|
||||
update_title (self);
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_new:
|
||||
*
|
||||
* Create a new diagram.
|
||||
*/
|
||||
static void
|
||||
diagram_new (LdWindowMain *self)
|
||||
{
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
if (!may_close_diagram (self, "Save the changes to diagram \"%s\" before"
|
||||
" closing it and creating a new one?"))
|
||||
return;
|
||||
|
||||
/* TODO: Reset canvas view to the center. */
|
||||
ld_document_clear (self->priv->document);
|
||||
ld_document_set_modified (self->priv->document, FALSE);
|
||||
|
||||
diagram_set_filename (self, NULL);
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_save:
|
||||
*
|
||||
* Save the current diagram.
|
||||
*/
|
||||
static void
|
||||
diagram_save (LdWindowMain *self)
|
||||
{
|
||||
GError *error;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
if (!self->priv->filename)
|
||||
{
|
||||
diagram_show_save_as_dialog (self);
|
||||
return;
|
||||
}
|
||||
|
||||
error = NULL;
|
||||
ld_document_save_to_file (self->priv->document,
|
||||
self->priv->filename, &error);
|
||||
if (error)
|
||||
{
|
||||
GtkWidget *message_dialog;
|
||||
|
||||
g_warning ("Saving failed: %s", error->message);
|
||||
g_error_free (error);
|
||||
|
||||
message_dialog = gtk_message_dialog_new (GTK_WINDOW (self),
|
||||
GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
|
||||
"Failed to save the diagram");
|
||||
gtk_message_dialog_format_secondary_text
|
||||
(GTK_MESSAGE_DIALOG (message_dialog),
|
||||
"Try again or save it under another name.");
|
||||
gtk_dialog_run (GTK_DIALOG (message_dialog));
|
||||
gtk_widget_destroy (message_dialog);
|
||||
}
|
||||
else
|
||||
{
|
||||
ld_document_set_modified (self->priv->document, FALSE);
|
||||
update_title (self);
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_get_file_filter:
|
||||
*
|
||||
* Return value: A new #GtkFileFilter object for diagrams.
|
||||
*/
|
||||
static GtkFileFilter *
|
||||
diagram_get_file_filter (void)
|
||||
{
|
||||
GtkFileFilter *filter;
|
||||
|
||||
filter = gtk_file_filter_new ();
|
||||
gtk_file_filter_set_name (filter, "Logdiag Diagrams");
|
||||
gtk_file_filter_add_pattern (filter, "*.ldd");
|
||||
return filter;
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_show_open_dialog:
|
||||
*
|
||||
* Show a dialog for opening a diagram.
|
||||
*/
|
||||
static void
|
||||
diagram_show_open_dialog (LdWindowMain *self)
|
||||
{
|
||||
GtkWidget *dialog;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
if (!may_close_diagram (self, "Save the changes to diagram \"%s\" before"
|
||||
" closing it and opening another one?"))
|
||||
return;
|
||||
|
||||
dialog = gtk_file_chooser_dialog_new ("Open...", GTK_WINDOW (self),
|
||||
GTK_FILE_CHOOSER_ACTION_OPEN,
|
||||
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
|
||||
GTK_STOCK_OPEN, GTK_RESPONSE_ACCEPT,
|
||||
NULL);
|
||||
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog),
|
||||
diagram_get_file_filter ());
|
||||
|
||||
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
|
||||
{
|
||||
gchar *filename;
|
||||
GError *error;
|
||||
|
||||
filename = gtk_file_chooser_get_filename (GTK_FILE_CHOOSER (dialog));
|
||||
|
||||
error = NULL;
|
||||
ld_document_load_from_file (self->priv->document, filename, &error);
|
||||
if (error)
|
||||
{
|
||||
GtkWidget *message_dialog;
|
||||
|
||||
g_warning ("Loading failed: %s", error->message);
|
||||
g_error_free (error);
|
||||
|
||||
message_dialog = gtk_message_dialog_new (GTK_WINDOW (self),
|
||||
GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK,
|
||||
"Failed to open the file");
|
||||
gtk_message_dialog_format_secondary_text
|
||||
(GTK_MESSAGE_DIALOG (message_dialog),
|
||||
"The file is probably corrupted.");
|
||||
gtk_dialog_run (GTK_DIALOG (message_dialog));
|
||||
gtk_widget_destroy (message_dialog);
|
||||
}
|
||||
else
|
||||
{
|
||||
ld_document_set_modified (self->priv->document, FALSE);
|
||||
diagram_set_filename (self, filename);
|
||||
}
|
||||
}
|
||||
gtk_widget_destroy (dialog);
|
||||
}
|
||||
|
||||
/*
|
||||
* diagram_show_save_as_dialog:
|
||||
*
|
||||
* Show a dialog for saving the diagram.
|
||||
*/
|
||||
static void
|
||||
diagram_show_save_as_dialog (LdWindowMain *self)
|
||||
{
|
||||
GtkWidget *dialog;
|
||||
|
||||
g_return_if_fail (LD_IS_WINDOW_MAIN (self));
|
||||
|
||||
dialog = gtk_file_chooser_dialog_new ("Save As...", GTK_WINDOW (self),
|
||||
GTK_FILE_CHOOSER_ACTION_SAVE,
|
||||
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
|
||||
GTK_STOCK_SAVE, GTK_RESPONSE_ACCEPT,
|
||||
NULL);
|
||||
g_object_set (dialog, "do-overwrite-confirmation", TRUE, NULL);
|
||||
gtk_file_chooser_add_filter (GTK_FILE_CHOOSER (dialog),
|
||||
diagram_get_file_filter ());
|
||||
|
||||
if (gtk_dialog_run (GTK_DIALOG (dialog)) == GTK_RESPONSE_ACCEPT)
|
||||
{
|
||||
diagram_set_filename (self, gtk_file_chooser_get_filename
|
||||
(GTK_FILE_CHOOSER (dialog)));
|
||||
diagram_save (self);
|
||||
}
|
||||
gtk_widget_destroy (dialog);
|
||||
}
|
||||
|
||||
/*
|
||||
* may_close_diagram:
|
||||
* @dialog_message: The dialog message to display to the user if the diagram
|
||||
* has been modified.
|
||||
*
|
||||
* When no changes have been made to the current diagram, the function
|
||||
* lets the caller proceed. Otherwise the user is asked for further actions.
|
||||
* If he chooses to save the diagram, the function will handle this action.
|
||||
*
|
||||
* Return value: FALSE if the current action should be cancelled.
|
||||
* TRUE if the caller may proceed.
|
||||
*/
|
||||
static gboolean
|
||||
may_close_diagram (LdWindowMain *self, const gchar *dialog_message)
|
||||
{
|
||||
GtkWidget *message_dialog;
|
||||
gchar *name;
|
||||
gint result;
|
||||
|
||||
g_return_val_if_fail (LD_IS_WINDOW_MAIN (self), TRUE);
|
||||
g_return_val_if_fail (dialog_message != NULL, TRUE);
|
||||
|
||||
if (!ld_document_get_modified (self->priv->document))
|
||||
return TRUE;
|
||||
|
||||
name = diagram_get_name (self);
|
||||
|
||||
/* TODO: Show the time since the diagram was last saved.
|
||||
* (Record the event with g_get_current_time().)
|
||||
*/
|
||||
message_dialog = gtk_message_dialog_new (GTK_WINDOW (self),
|
||||
GTK_DIALOG_MODAL, GTK_MESSAGE_WARNING, GTK_BUTTONS_NONE,
|
||||
dialog_message, name);
|
||||
gtk_message_dialog_format_secondary_text
|
||||
(GTK_MESSAGE_DIALOG (message_dialog),
|
||||
"If you don't save, changes will be permanently lost.");
|
||||
gtk_dialog_add_buttons (GTK_DIALOG (message_dialog),
|
||||
"Close _without Saving", GTK_RESPONSE_NO,
|
||||
GTK_STOCK_CANCEL, GTK_RESPONSE_CANCEL,
|
||||
GTK_STOCK_SAVE, GTK_RESPONSE_YES,
|
||||
NULL);
|
||||
|
||||
result = gtk_dialog_run (GTK_DIALOG (message_dialog));
|
||||
gtk_widget_destroy (message_dialog);
|
||||
g_free (name);
|
||||
|
||||
switch (result)
|
||||
{
|
||||
case GTK_RESPONSE_NO:
|
||||
return TRUE;
|
||||
case GTK_RESPONSE_YES:
|
||||
diagram_save (self);
|
||||
return TRUE;
|
||||
case GTK_RESPONSE_CANCEL:
|
||||
case GTK_RESPONSE_DELETE_EVENT:
|
||||
return FALSE;
|
||||
default:
|
||||
g_assert_not_reached ();
|
||||
}
|
||||
}
|
||||
|
||||
/*
|
||||
* may_quit:
|
||||
*
|
||||
* A variant on may_close_diagram() for the occasion of closing
|
||||
* the whole application.
|
||||
*
|
||||
* Return value: TRUE if the application may quit, FALSE otherwise.
|
||||
*/
|
||||
static gboolean
|
||||
may_quit (LdWindowMain *self)
|
||||
{
|
||||
g_return_val_if_fail (LD_IS_WINDOW_MAIN (self), TRUE);
|
||||
|
||||
return may_close_diagram (self,
|
||||
"Save the changes to diagram \"%s\" before closing?");
|
||||
}
|
||||
|
||||
|
||||
/* ===== User interface actions ============================================ */
|
||||
|
||||
static void
|
||||
on_action_new (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
diagram_new (self);
|
||||
}
|
||||
|
||||
static void
|
||||
on_action_open (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
diagram_show_open_dialog (self);
|
||||
}
|
||||
|
||||
static void
|
||||
on_action_save (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
diagram_save (self);
|
||||
}
|
||||
|
||||
static void
|
||||
on_action_save_as (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
diagram_show_save_as_dialog (self);
|
||||
}
|
||||
|
||||
static void
|
||||
on_action_quit (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
if (may_quit (self))
|
||||
gtk_widget_destroy (GTK_WIDGET (self));
|
||||
}
|
||||
|
||||
static void
|
||||
on_action_about (GtkAction *action, LdWindowMain *self)
|
||||
{
|
||||
|
||||
Loading…
Reference in New Issue
Block a user