diff options
Diffstat (limited to 'liblogdiag/ld-library-toolbar.c')
| -rw-r--r-- | liblogdiag/ld-library-toolbar.c | 773 |
1 files changed, 773 insertions, 0 deletions
diff --git a/liblogdiag/ld-library-toolbar.c b/liblogdiag/ld-library-toolbar.c new file mode 100644 index 0000000..c809f1e --- /dev/null +++ b/liblogdiag/ld-library-toolbar.c @@ -0,0 +1,773 @@ +/* + * ld-library-toolbar.c + * + * This file is a part of logdiag. + * Copyright Přemysl Janouch 2011. All rights reserved. + * + * See the file LICENSE for licensing information. + * + */ + +#include "liblogdiag.h" +#include "config.h" + + +/** + * SECTION:ld-library-toolbar + * @short_description: A library toolbar. + * @see_also: #LdLibrary + * + * #LdLibraryToolbar enables the user to choose symbols from an #LdLibrary. + */ + +#define LIBRARY_TOOLBAR_ICON_WIDTH 32 + +/* + * SymbolMenuItem: + * + * Data related to a symbol in an open symbol menu. + */ +typedef struct _SymbolMenuItem SymbolMenuItem; + +struct _SymbolMenuItem +{ + LdSymbol *symbol; + gchar *klass; + + gint width; + gdouble dx; + gdouble scale; +}; + +/* + * SymbolMenuData: + * + * Data related to the currently opened symbol menu. + */ +typedef struct _SymbolMenuData SymbolMenuData; + +struct _SymbolMenuData +{ + GtkToggleButton *active_button; + + SymbolMenuItem *items; + gint n_items; + gint active_item; + + gint menu_width; + gint menu_height; + gint menu_y; +}; + +enum +{ + CANVAS_HANDLER_EXPOSE, + CANVAS_HANDLER_MOTION_NOTIFY, + CANVAS_HANDLER_BUTTON_PRESS, + CANVAS_HANDLER_BUTTON_RELEASE, + CANVAS_HANDLER_COUNT +}; + +/* + * LdLibraryToolbarPrivate: + * @library: A library object assigned to this canvas as a model. + * @canvas: A canvas object for showing symbol menus. + * @canvas_handlers: Signal handlers that hook the canvas. + * @symbol_menu: Data related to menus. + */ +struct _LdLibraryToolbarPrivate +{ + LdLibrary *library; + LdCanvas *canvas; + gulong canvas_handlers[CANVAS_HANDLER_COUNT]; + SymbolMenuData symbol_menu; +}; + +enum +{ + PROP_0, + PROP_LIBRARY, + PROP_CANVAS +}; + +static void ld_library_toolbar_get_property (GObject *object, guint property_id, + GValue *value, GParamSpec *pspec); +static void ld_library_toolbar_set_property (GObject *object, guint property_id, + const GValue *value, GParamSpec *pspec); +static void ld_library_toolbar_dispose (GObject *gobject); + +static void reload_library (LdLibraryToolbar *self); +static void load_category_cb (gpointer data, gpointer user_data); +static GdkPixbuf *recolor_pixbuf (GdkPixbuf *pbuf, GdkColor *color); + +static void redraw_symbol_menu (LdLibraryToolbar *self); +static void emit_symbol_signal (LdLibraryToolbar *self, + guint signal_id, gint menu_index); +static void on_category_toggle (GtkToggleButton *toggle_button, + gpointer user_data); + +static inline void block_canvas_handlers (LdLibraryToolbar *self); +static inline void unblock_canvas_handlers (LdLibraryToolbar *self); +static inline void disconnect_canvas_handlers (LdLibraryToolbar *self); +static gboolean on_canvas_exposed (GtkWidget *widget, + GdkEventExpose *event, gpointer user_data); +static gboolean on_canvas_motion_notify (GtkWidget *widget, + GdkEventMotion *event, gpointer user_data); +static gboolean on_canvas_button_press (GtkWidget *widget, + GdkEventButton *event, gpointer user_data); +static gboolean on_canvas_button_release (GtkWidget *widget, + GdkEventButton *event, gpointer user_data); + + +G_DEFINE_TYPE (LdLibraryToolbar, ld_library_toolbar, GTK_TYPE_TOOLBAR); + +static void +ld_library_toolbar_class_init (LdLibraryToolbarClass *klass) +{ + GObjectClass *object_class; + GtkWidgetClass *widget_class; + GParamSpec *pspec; + + widget_class = GTK_WIDGET_CLASS (klass); + + object_class = G_OBJECT_CLASS (klass); + object_class->get_property = ld_library_toolbar_get_property; + object_class->set_property = ld_library_toolbar_set_property; + object_class->dispose = ld_library_toolbar_dispose; + +/** + * LdLibraryToolbar:library: + * + * The #LdLibrary that this canvas retrieves symbols from. + */ + pspec = g_param_spec_object ("library", "Library", + "The library that this canvas retrieves symbols from.", + LD_TYPE_LIBRARY, G_PARAM_READWRITE); + g_object_class_install_property (object_class, PROP_LIBRARY, pspec); + +/** + * LdLibraryToolbar:canvas: + * + * The #LdCanvas misused for showing symbol menus. + */ + pspec = g_param_spec_object ("canvas", "Canvas", + "The canvas misused for showing symbol menus.", + LD_TYPE_CANVAS, G_PARAM_READWRITE); + g_object_class_install_property (object_class, PROP_CANVAS, pspec); + +/** + * LdLibraryToolbar::symbol-chosen: + * @self: An #LdLibraryToolbar object. + * @symbol: The chosen #LdSymbol object. + * @klass: Location of the symbol within the library. + * + * A symbol has been chosen. + */ + klass->symbol_chosen_signal = g_signal_new + ("symbol-chosen", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, 0, NULL, NULL, + g_cclosure_user_marshal_VOID__OBJECT_STRING, + G_TYPE_NONE, 2, LD_TYPE_SYMBOL, + G_TYPE_STRING | G_SIGNAL_TYPE_STATIC_SCOPE); + +/** + * LdLibraryToolbar::symbol-selected: + * @self: An #LdLibraryToolbar object. + * @symbol: The selected #LdSymbol object. + * @klass: Location of the symbol within the library. + * + * A symbol has been selected. + */ + klass->symbol_selected_signal = g_signal_new + ("symbol-selected", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, 0, NULL, NULL, + g_cclosure_user_marshal_VOID__OBJECT_STRING, + G_TYPE_NONE, 2, LD_TYPE_SYMBOL, + G_TYPE_STRING | G_SIGNAL_TYPE_STATIC_SCOPE); + +/** + * LdLibraryToolbar::symbol-deselected: + * @self: An #LdLibraryToolbar object. + * @symbol: The deselected #LdSymbol object. + * @klass: Location of the symbol within the library. + * + * A symbol has been deselected. + */ + klass->symbol_deselected_signal = g_signal_new + ("symbol-deselected", G_TYPE_FROM_CLASS (klass), + G_SIGNAL_RUN_LAST, 0, NULL, NULL, + g_cclosure_user_marshal_VOID__OBJECT_STRING, + G_TYPE_NONE, 2, LD_TYPE_SYMBOL, + G_TYPE_STRING | G_SIGNAL_TYPE_STATIC_SCOPE); + + g_type_class_add_private (klass, sizeof (LdLibraryToolbarPrivate)); +} + +static void +ld_library_toolbar_init (LdLibraryToolbar *self) +{ + self->priv = G_TYPE_INSTANCE_GET_PRIVATE + (self, LD_TYPE_LIBRARY_TOOLBAR, LdLibraryToolbarPrivate); +} + +static void +ld_library_toolbar_dispose (GObject *gobject) +{ + LdLibraryToolbar *self; + + self = LD_LIBRARY_TOOLBAR (gobject); + + ld_library_toolbar_set_library (self, NULL); + ld_library_toolbar_set_canvas (self, NULL); + + /* Chain up to the parent class. */ + G_OBJECT_CLASS (ld_library_toolbar_parent_class)->dispose (gobject); +} + +static void +ld_library_toolbar_get_property (GObject *object, guint property_id, + GValue *value, GParamSpec *pspec) +{ + LdLibraryToolbar *self; + + self = LD_LIBRARY_TOOLBAR (object); + switch (property_id) + { + case PROP_LIBRARY: + g_value_set_object (value, ld_library_toolbar_get_library (self)); + break; + case PROP_CANVAS: + g_value_set_object (value, ld_library_toolbar_get_canvas (self)); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + } +} + +static void +ld_library_toolbar_set_property (GObject *object, guint property_id, + const GValue *value, GParamSpec *pspec) +{ + LdLibraryToolbar *self; + + self = LD_LIBRARY_TOOLBAR (object); + switch (property_id) + { + case PROP_LIBRARY: + ld_library_toolbar_set_library (self, + LD_LIBRARY (g_value_get_object (value))); + break; + case PROP_CANVAS: + ld_library_toolbar_set_canvas (self, + LD_CANVAS (g_value_get_object (value))); + break; + default: + G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec); + } +} + + +/** + * ld_library_toolbar_new: + * + * Create an instance. + */ +GtkWidget * +ld_library_toolbar_new (void) +{ + return g_object_new (LD_TYPE_LIBRARY_TOOLBAR, NULL); +} + +/** + * ld_library_toolbar_set_library: + * @self: An #LdLibraryToolbar object. + * @library: (allow-none): The #LdLibrary to be assigned to the toolbar. + * + * Assign an #LdLibrary object to the toolbar. + */ +void +ld_library_toolbar_set_library (LdLibraryToolbar *self, LdLibrary *library) +{ + g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self)); + g_return_if_fail (LD_IS_LIBRARY (library) || library == NULL); + + if (self->priv->library) + { + g_signal_handlers_disconnect_by_func (self->priv->library, + reload_library, self); + g_object_unref (self->priv->library); + } + + self->priv->library = library; + + if (library) + { + g_signal_connect_data (library, "changed", + G_CALLBACK (reload_library), self, + NULL, G_CONNECT_AFTER | G_CONNECT_SWAPPED); + g_object_ref (library); + } + reload_library (self); + g_object_notify (G_OBJECT (self), "library"); +} + +/** + * ld_library_toolbar_get_library: + * @self: An #LdLibraryToolbar object. + * + * Get the #LdLibrary object assigned to this toolbar. + * The reference count on the library is not incremented. + */ +LdLibrary * +ld_library_toolbar_get_library (LdLibraryToolbar *self) +{ + g_return_val_if_fail (LD_IS_LIBRARY_TOOLBAR (self), NULL); + return self->priv->library; +} + +/** + * ld_library_toolbar_set_canvas: + * @self: An #LdLibraryToolbar object. + * @canvas: (allow-none): The #LdCanvas to be assigned to the toolbar. + * + * Assign an #LdCanvas object to the toolbar. + */ +void +ld_library_toolbar_set_canvas (LdLibraryToolbar *self, LdCanvas *canvas) +{ + g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self)); + g_return_if_fail (LD_IS_CANVAS (canvas) || canvas == NULL); + + if (self->priv->canvas) + { + disconnect_canvas_handlers (self); + g_object_unref (self->priv->canvas); + } + + self->priv->canvas = canvas; + + if (canvas) + { + self->priv->canvas_handlers[CANVAS_HANDLER_EXPOSE] + = g_signal_connect (canvas, "expose-event", + G_CALLBACK (on_canvas_exposed), self); + self->priv->canvas_handlers[CANVAS_HANDLER_MOTION_NOTIFY] + = g_signal_connect (canvas, "motion-notify-event", + G_CALLBACK (on_canvas_motion_notify), self); + self->priv->canvas_handlers[CANVAS_HANDLER_BUTTON_PRESS] + = g_signal_connect (canvas, "button-press-event", + G_CALLBACK (on_canvas_button_press), self); + self->priv->canvas_handlers[CANVAS_HANDLER_BUTTON_RELEASE] + = g_signal_connect (canvas, "button-release-event", + G_CALLBACK (on_canvas_button_release), self); + + block_canvas_handlers (self); + g_object_ref (canvas); + } + g_object_notify (G_OBJECT (self), "canvas"); +} + +/** + * ld_library_toolbar_get_canvas: + * @self: An #LdLibraryToolbar object. + * + * Get the #LdLibrary object assigned to this toolbar. + * The reference count on the canvas is not incremented. + */ +LdCanvas * +ld_library_toolbar_get_canvas (LdLibraryToolbar *self) +{ + g_return_val_if_fail (LD_IS_LIBRARY_TOOLBAR (self), NULL); + return self->priv->canvas; +} + +static void +reload_library (LdLibraryToolbar *self) +{ + g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self)); + + /* Clear the toolbar first, if there was already something in it. */ + gtk_container_foreach (GTK_CONTAINER (self), + (GtkCallback) gtk_widget_destroy, NULL); + + if (self->priv->library) + { + GSList *categories; + + categories = (GSList *) ld_library_get_children (self->priv->library); + g_slist_foreach (categories, load_category_cb, self); + } +} + +static void +load_category_cb (gpointer data, gpointer user_data) +{ + LdLibraryToolbar *self; + LdSymbolCategory *cat; + const gchar *human_name; + GdkPixbuf *pbuf, *new_pbuf; + GtkWidget *img; + GtkToolItem *item; + GtkWidget *button; + GtkStyle *style; + + g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (user_data)); + g_return_if_fail (LD_IS_SYMBOL_CATEGORY (data)); + + self = user_data; + cat = data; + + pbuf = gdk_pixbuf_new_from_file_at_size (ld_symbol_category_get_image_path + (cat), LIBRARY_TOOLBAR_ICON_WIDTH, -1, NULL); + g_return_if_fail (pbuf != NULL); + + button = gtk_toggle_button_new (); + style = gtk_rc_get_style (button); + + /* TODO: Handle all states. */ + new_pbuf = recolor_pixbuf (pbuf, &style->fg[GTK_STATE_NORMAL]); + if (new_pbuf) + { + g_object_unref (pbuf); + pbuf = new_pbuf; + } + + img = gtk_image_new_from_pixbuf (pbuf); + g_object_unref (pbuf); + + item = gtk_tool_item_new (); + gtk_container_add (GTK_CONTAINER (button), img); + gtk_container_add (GTK_CONTAINER (item), button); + + /* Don't steal focus from the canvas. */ + g_object_set (button, "can-focus", FALSE, NULL); + + /* Assign the category to the toggle button. */ + g_object_ref (cat); + g_object_set_data_full (G_OBJECT (button), + "category", cat, (GDestroyNotify) g_object_unref); + + /* Hook toggling of the button. */ + g_signal_connect (button, "toggled", G_CALLBACK (on_category_toggle), self); + + human_name = ld_symbol_category_get_human_name (cat); + gtk_tool_item_set_tooltip_text (item, human_name); + gtk_toolbar_insert (GTK_TOOLBAR (self), item, 0); +} + +static GdkPixbuf * +recolor_pixbuf (GdkPixbuf *pbuf, GdkColor *color) +{ + gint width, height; + GdkPixbuf *new_pbuf; + cairo_surface_t *cr_surface; + cairo_t *cr; + + width = gdk_pixbuf_get_width (pbuf); + height = gdk_pixbuf_get_height (pbuf); + + new_pbuf = gdk_pixbuf_new (GDK_COLORSPACE_RGB, TRUE, 8, width, height); + g_return_val_if_fail (new_pbuf != NULL, NULL); + + cr_surface = cairo_image_surface_create_for_data + (gdk_pixbuf_get_pixels (new_pbuf), CAIRO_FORMAT_ARGB32, + width, height, gdk_pixbuf_get_rowstride (new_pbuf)); + cr = cairo_create (cr_surface); + + /* Change the color of all pixels but leave the alpha channel intact. */ + gdk_cairo_set_source_color (cr, color); + cairo_paint (cr); + + cairo_set_operator (cr, CAIRO_OPERATOR_DEST_IN); + gdk_cairo_set_source_pixbuf (cr, pbuf, 0, 0); + cairo_paint (cr); + + cairo_destroy (cr); + cairo_surface_destroy (cr_surface); + return new_pbuf; +} + +static void +redraw_symbol_menu (LdLibraryToolbar *self) +{ + SymbolMenuData *data; + + g_return_if_fail (LD_IS_LIBRARY_TOOLBAR (self)); + data = &self->priv->symbol_menu; + + gtk_widget_queue_draw_area (GTK_WIDGET (self->priv->canvas), + 0, data->menu_y - 1, data->menu_width + 2, data->menu_height + 2); +} + +static void +emit_symbol_signal (LdLibraryToolbar *self, guint signal_id, gint menu_index) +{ + SymbolMenuData *data; + SymbolMenuItem *item; + + data = &self->priv->symbol_menu; + if (menu_index == -1) + menu_index = data->active_item; + if (menu_index != -1) + { + item = &data->items[menu_index]; + g_signal_emit (self, signal_id, 0, item->symbol, item->klass); + } +} + +static void +on_category_toggle (GtkToggleButton *toggle_button, gpointer user_data) +{ + LdLibraryToolbar *self; + LdLibraryToolbarPrivate *priv; + LdSymbolCategory *cat; + SymbolMenuData *data; + const gchar *category_name, *symbol_name; + + cat = g_object_get_data (G_OBJECT (toggle_button), "category"); + self = LD_LIBRARY_TOOLBAR (user_data); + priv = self->priv; + data = &priv->symbol_menu; + + /* First untoggle any active button. */ + if (data->active_button) + gtk_toggle_button_set_active (data->active_button, FALSE); + + /* And toggle signal handlers that enable the user to add a symbol. */ + if (data->active_button == toggle_button) + { + gint i; + + block_canvas_handlers (self); + + g_object_unref (data->active_button); + data->active_button = NULL; + + emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self) + ->symbol_deselected_signal, -1); + + /* Ashes to ashes, NULL to NULL. */ + for (i = 0; i < data->n_items; i++) + { + g_object_unref (data->items[i].symbol); + g_free (data->items[i].klass); + } + + g_free (data->items); + data->items = NULL; + + gtk_grab_remove (GTK_WIDGET (self->priv->canvas)); + } + else + { + const GSList *children, *symbol_iter; + SymbolMenuItem *item; + gint x, y, menu_width; + + g_return_if_fail (gtk_widget_translate_coordinates (GTK_WIDGET + (toggle_button), GTK_WIDGET (priv->canvas), 0, 0, &x, &y)); + + data->menu_y = y; + data->menu_height = GTK_WIDGET (toggle_button)->allocation.height; + + unblock_canvas_handlers (self); + + data->active_button = toggle_button; + g_object_ref (data->active_button); + + category_name = ld_symbol_category_get_name (cat); + children = ld_symbol_category_get_children (cat); + + data->n_items = g_slist_length ((GSList *) children); + data->items = g_new (SymbolMenuItem, data->n_items); + data->active_item = -1; + + item = data->items; + menu_width = 0; + for (symbol_iter = children; symbol_iter; + symbol_iter = symbol_iter->next) + { + LdRectangle area; + + item->symbol = LD_SYMBOL (symbol_iter->data); + g_object_ref (item->symbol); + + symbol_name = ld_symbol_get_name (item->symbol); + item->klass = g_build_path (LD_LIBRARY_IDENTIFIER_SEPARATOR, + category_name, symbol_name, NULL); + + ld_symbol_get_area (item->symbol, &area); + + /* This is the height when the center of the symbol is + * in the center of it's symbol menu item. + */ + item->scale = data->menu_height * 0.5 + / MAX (ABS (area.y), ABS (area.y + area.height)) * 0.5; + item->width = data->menu_height * 0.5 + item->scale * area.width; + item->dx = item->width * 0.5 + item->scale * (area.width * 0.5 + - MAX (ABS (area.x), ABS (area.x + area.width))); + + menu_width += item++->width; + } + data->menu_width = menu_width; + + gtk_grab_add (GTK_WIDGET (self->priv->canvas)); + } + redraw_symbol_menu (self); +} + +#define DEFINE_CANVAS_HANDLER_FUNC(name) \ +static inline void \ +name ## _canvas_handlers (LdLibraryToolbar *self) \ +{ \ + gint i; \ + g_return_if_fail (LD_IS_CANVAS (self->priv->canvas)); \ + for (i = 0; i < CANVAS_HANDLER_COUNT; i++) \ + g_signal_handler_ ## name (self->priv->canvas, \ + self->priv->canvas_handlers[i]); \ +} + +DEFINE_CANVAS_HANDLER_FUNC (block) +DEFINE_CANVAS_HANDLER_FUNC (unblock) +DEFINE_CANVAS_HANDLER_FUNC (disconnect) + +static gboolean +on_canvas_exposed (GtkWidget *widget, GdkEventExpose *event, gpointer user_data) +{ + cairo_t *cr; + LdLibraryToolbar *self; + SymbolMenuData *data; + gint i, x; + + cr = gdk_cairo_create (widget->window); + self = LD_LIBRARY_TOOLBAR (user_data); + data = &self->priv->symbol_menu; + + /* Draw some border. */ + cairo_set_line_width (cr, 1); + + cairo_rectangle (cr, 0, data->menu_y, data->menu_width, data->menu_height); + cairo_set_source_rgb (cr, 1, 1, 1); + cairo_fill (cr); + + /* Draw all symbols from that category. */ + for (x = i = 0; i < data->n_items; i++) + { + SymbolMenuItem *item; + + item = data->items + i; + cairo_save (cr); + + cairo_rectangle (cr, x, data->menu_y, item->width, data->menu_height); + cairo_clip (cr); + + if (i == data->active_item) + { + cairo_set_source_rgb (cr, 0.9, 0.9, 0.9); + cairo_paint (cr); + } + + cairo_translate (cr, x + item->dx, + data->menu_y + data->menu_height * 0.5); + cairo_scale (cr, item->scale, item->scale); + + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_set_line_width (cr, 1 / item->scale); + ld_symbol_draw (item->symbol, cr); + + cairo_restore (cr); + x += item->width; + } + + cairo_rectangle (cr, 0, data->menu_y, data->menu_width, data->menu_height); + cairo_set_source_rgb (cr, 0, 0, 0); + cairo_stroke (cr); + + cairo_destroy (cr); + return FALSE; +} + +static gboolean +on_canvas_motion_notify (GtkWidget *widget, GdkEventMotion *event, + gpointer user_data) +{ + LdLibraryToolbar *self; + SymbolMenuData *data; + gint i, x, at_cursor = -1; + + self = LD_LIBRARY_TOOLBAR (user_data); + data = &self->priv->symbol_menu; + + if (widget->window != event->window + || event->x < 0 || event->y < data->menu_y + || event->y >= data->menu_y + data->menu_height) + goto on_canvas_motion_notify_end; + + for (x = i = 0; i < data->n_items; i++) + { + x += data->items[i].width; + if (event->x < x) + { + at_cursor = i; + break; + } + } + +on_canvas_motion_notify_end: + if (data->active_item != at_cursor) + { + emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self) + ->symbol_deselected_signal, -1); + + if (at_cursor != -1) + emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self) + ->symbol_selected_signal, at_cursor); + } + data->active_item = at_cursor; + redraw_symbol_menu (self); + return FALSE; +} + +static gboolean +on_canvas_button_press (GtkWidget *widget, GdkEventButton *event, + gpointer user_data) +{ + LdLibraryToolbar *self; + SymbolMenuData *data; + + self = LD_LIBRARY_TOOLBAR (user_data); + data = &self->priv->symbol_menu; + + /* If the event occured elsewhere, cancel the menu and put the event + * back into the queue. + */ + if (widget->window != event->window && data->active_button) + { + gtk_toggle_button_set_active (data->active_button, FALSE); + gdk_event_put ((GdkEvent *) event); + } + return FALSE; +} + +static gboolean +on_canvas_button_release (GtkWidget *widget, GdkEventButton *event, + gpointer user_data) +{ + LdLibraryToolbar *self; + SymbolMenuData *data; + + self = LD_LIBRARY_TOOLBAR (user_data); + data = &self->priv->symbol_menu; + + if (event->button != 1) + return FALSE; + + emit_symbol_signal (self, LD_LIBRARY_TOOLBAR_GET_CLASS (self) + ->symbol_chosen_signal, -1); + + /* We've either chosen a symbol or canceled the menu, so hide it. */ + if (data->active_button) + gtk_toggle_button_set_active (data->active_button, FALSE); + + return FALSE; +} |