diff options
Diffstat (limited to 'src/ui/themewidget.c')
| -rw-r--r-- | src/ui/themewidget.c | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/ui/themewidget.c b/src/ui/themewidget.c new file mode 100644 index 00000000..2d4e99fe --- /dev/null +++ b/src/ui/themewidget.c @@ -0,0 +1,183 @@ +/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ + +/* Marco theme widget (displays themed draw operations) */ + +/* + * Copyright (C) 2002 Havoc Pennington + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of the + * License, or (at your option) any later version. + * + * This program 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 + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA + * 02111-1307, USA. + */ + +#include "themewidget.h" +#include <math.h> + +static void meta_area_class_init (MetaAreaClass *klass); +static void meta_area_init (MetaArea *area); +static void meta_area_size_request (GtkWidget *widget, + GtkRequisition *req); +static gint meta_area_expose (GtkWidget *widget, + GdkEventExpose *event); +static void meta_area_finalize (GObject *object); + + +static GtkMiscClass *parent_class; + +GType +meta_area_get_type (void) +{ + static GType area_type = 0; + + if (!area_type) + { + static const GtkTypeInfo area_info = + { + "MetaArea", + sizeof (MetaArea), + sizeof (MetaAreaClass), + (GtkClassInitFunc) meta_area_class_init, + (GtkObjectInitFunc) meta_area_init, + /* reserved_1 */ NULL, + /* reserved_2 */ NULL, + (GtkClassInitFunc) NULL, + }; + + area_type = gtk_type_unique (GTK_TYPE_MISC, &area_info); + } + + return area_type; +} + +static void +meta_area_class_init (MetaAreaClass *class) +{ + GObjectClass *gobject_class = G_OBJECT_CLASS (class); + GtkObjectClass *object_class; + GtkWidgetClass *widget_class; + + object_class = (GtkObjectClass*) class; + widget_class = (GtkWidgetClass*) class; + parent_class = g_type_class_peek (gtk_misc_get_type ()); + + gobject_class->finalize = meta_area_finalize; + + widget_class->expose_event = meta_area_expose; + widget_class->size_request = meta_area_size_request; +} + +static void +meta_area_init (MetaArea *area) +{ + GTK_WIDGET_SET_FLAGS (area, GTK_NO_WINDOW); +} + +GtkWidget* +meta_area_new (void) +{ + MetaArea *area; + + area = gtk_type_new (META_TYPE_AREA); + + return GTK_WIDGET (area); +} + +static void +meta_area_finalize (GObject *object) +{ + MetaArea *area; + + area = META_AREA (object); + + if (area->dnotify) + (* area->dnotify) (area->user_data); + + G_OBJECT_CLASS (parent_class)->finalize (object); +} + +static gint +meta_area_expose (GtkWidget *widget, + GdkEventExpose *event) +{ + MetaArea *area; + GtkMisc *misc; + gint x, y; + gfloat xalign; + + g_return_val_if_fail (META_IS_AREA (widget), FALSE); + g_return_val_if_fail (event != NULL, FALSE); + + if (GTK_WIDGET_DRAWABLE (widget)) + { + area = META_AREA (widget); + misc = GTK_MISC (widget); + + if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR) + xalign = misc->xalign; + else + xalign = 1.0 - misc->xalign; + + x = floor (widget->allocation.x + misc->xpad + + ((widget->allocation.width - widget->requisition.width) * xalign) + + 0.5); + y = floor (widget->allocation.y + misc->ypad + + ((widget->allocation.height - widget->requisition.height) * misc->yalign) + + 0.5); + + if (area->expose_func) + { + (* area->expose_func) (area, event, x, y, + area->user_data); + } + } + + return FALSE; +} + +static void +meta_area_size_request (GtkWidget *widget, + GtkRequisition *req) +{ + MetaArea *area; + + area = META_AREA (widget); + + req->width = 0; + req->height = 0; + + if (area->size_func) + { + (* area->size_func) (area, &req->width, &req->height, + area->user_data); + } +} + +void +meta_area_setup (MetaArea *area, + MetaAreaSizeFunc size_func, + MetaAreaExposeFunc expose_func, + void *user_data, + GDestroyNotify dnotify) +{ + if (area->dnotify) + (* area->dnotify) (area->user_data); + + area->size_func = size_func; + area->expose_func = expose_func; + area->user_data = user_data; + area->dnotify = dnotify; + + gtk_widget_queue_resize (GTK_WIDGET (area)); +} + |