diff options
Diffstat (limited to 'gtk/gtkitem.c')
| -rw-r--r-- | gtk/gtkitem.c | 191 |
1 files changed, 191 insertions, 0 deletions
diff --git a/gtk/gtkitem.c b/gtk/gtkitem.c new file mode 100644 index 000000000..6dd0ec8dd --- /dev/null +++ b/gtk/gtkitem.c @@ -0,0 +1,191 @@ +/* GTK - The GIMP Toolkit + * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Library General Public + * License as published by the Free Software Foundation; either + * version 2 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Library General Public License for more details. + * + * You should have received a copy of the GNU Library General Public + * License along with this library; if not, write to the Free + * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ +#include "gtkitem.h" +#include "gtksignal.h" + + +enum { + SELECT, + DESELECT, + TOGGLE, + LAST_SIGNAL +}; + + +static void gtk_item_class_init (GtkItemClass *klass); +static void gtk_item_init (GtkItem *item); +static void gtk_item_map (GtkWidget *widget); +static void gtk_item_unmap (GtkWidget *widget); +static void gtk_item_realize (GtkWidget *widget); + + +static gint item_signals[LAST_SIGNAL] = { 0 }; + + +guint +gtk_item_get_type () +{ + static guint item_type = 0; + + if (!item_type) + { + GtkTypeInfo item_info = + { + "GtkItem", + sizeof (GtkItem), + sizeof (GtkItemClass), + (GtkClassInitFunc) gtk_item_class_init, + (GtkObjectInitFunc) gtk_item_init, + (GtkArgFunc) NULL, + }; + + item_type = gtk_type_unique (gtk_bin_get_type (), &item_info); + } + + return item_type; +} + +static void +gtk_item_class_init (GtkItemClass *class) +{ + GtkObjectClass *object_class; + GtkWidgetClass *widget_class; + + object_class = (GtkObjectClass*) class; + widget_class = (GtkWidgetClass*) class; + + item_signals[SELECT] = + gtk_signal_new ("select", + GTK_RUN_FIRST, + object_class->type, + GTK_SIGNAL_OFFSET (GtkItemClass, select), + gtk_signal_default_marshaller, + GTK_TYPE_NONE, 0); + item_signals[DESELECT] = + gtk_signal_new ("deselect", + GTK_RUN_FIRST, + object_class->type, + GTK_SIGNAL_OFFSET (GtkItemClass, deselect), + gtk_signal_default_marshaller, + GTK_TYPE_NONE, 0); + item_signals[TOGGLE] = + gtk_signal_new ("toggle", + GTK_RUN_FIRST, + object_class->type, + GTK_SIGNAL_OFFSET (GtkItemClass, toggle), + gtk_signal_default_marshaller, + GTK_TYPE_NONE, 0); + + gtk_object_class_add_signals (object_class, item_signals, LAST_SIGNAL); + + widget_class->activate_signal = item_signals[TOGGLE]; + widget_class->map = gtk_item_map; + widget_class->unmap = gtk_item_unmap; + widget_class->realize = gtk_item_realize; + + class->select = NULL; + class->deselect = NULL; + class->toggle = NULL; +} + +static void +gtk_item_init (GtkItem *item) +{ + GTK_WIDGET_UNSET_FLAGS (item, GTK_NO_WINDOW); +} + +void +gtk_item_select (GtkItem *item) +{ + gtk_signal_emit (GTK_OBJECT (item), item_signals[SELECT]); +} + +void +gtk_item_deselect (GtkItem *item) +{ + gtk_signal_emit (GTK_OBJECT (item), item_signals[DESELECT]); +} + +void +gtk_item_toggle (GtkItem *item) +{ + gtk_signal_emit (GTK_OBJECT (item), item_signals[TOGGLE]); +} + + +static void +gtk_item_map (GtkWidget *widget) +{ + GtkBin *bin; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_ITEM (widget)); + + GTK_WIDGET_SET_FLAGS (widget, GTK_MAPPED); + gdk_window_show (widget->window); + + bin = GTK_BIN (widget); + + if (bin->child && + GTK_WIDGET_VISIBLE (bin->child) && + !GTK_WIDGET_MAPPED (bin->child)) + gtk_widget_map (bin->child); +} + +static void +gtk_item_unmap (GtkWidget *widget) +{ + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_ITEM (widget)); + + GTK_WIDGET_UNSET_FLAGS (widget, GTK_MAPPED); + gdk_window_hide (widget->window); +} + +static void +gtk_item_realize (GtkWidget *widget) +{ + GdkWindowAttr attributes; + gint attributes_mask; + + g_return_if_fail (widget != NULL); + g_return_if_fail (GTK_IS_ITEM (widget)); + + GTK_WIDGET_SET_FLAGS (widget, GTK_REALIZED); + + attributes.x = widget->allocation.x; + attributes.y = widget->allocation.y; + attributes.width = widget->allocation.width; + attributes.height = widget->allocation.height; + attributes.window_type = GDK_WINDOW_CHILD; + attributes.wclass = GDK_INPUT_OUTPUT; + attributes.visual = gtk_widget_get_visual (widget); + attributes.colormap = gtk_widget_get_colormap (widget); + attributes.event_mask = (GDK_EXPOSURE_MASK | + GDK_BUTTON_PRESS_MASK | + GDK_BUTTON_RELEASE_MASK | + GDK_ENTER_NOTIFY_MASK | + GDK_LEAVE_NOTIFY_MASK); + + attributes_mask = GDK_WA_X | GDK_WA_Y | GDK_WA_VISUAL | GDK_WA_COLORMAP; + widget->window = gdk_window_new (widget->parent->window, &attributes, attributes_mask); + gdk_window_set_user_data (widget->window, widget); + + widget->style = gtk_style_attach (widget->style, widget->window); + gtk_style_set_background (widget->style, widget->window, GTK_STATE_NORMAL); +} |