diff options
Diffstat (limited to 'widgets/e-reflow/e-reflow-sorted.c')
| -rw-r--r-- | widgets/e-reflow/e-reflow-sorted.c | 185 |
1 files changed, 185 insertions, 0 deletions
diff --git a/widgets/e-reflow/e-reflow-sorted.c b/widgets/e-reflow/e-reflow-sorted.c new file mode 100644 index 0000000000..696efe454a --- /dev/null +++ b/widgets/e-reflow/e-reflow-sorted.c @@ -0,0 +1,185 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * e-reflow-sorted.c + * Copyright (C) 2000 Helix Code, Inc. + * Author: Chris Lahey <clahey@helixcode.com> + * + * This library 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 library; if not, write to the + * Free Software Foundation, Inc., 59 Temple Place - Suite 330, + * Boston, MA 02111-1307, USA. + */ + +#include <gnome.h> +#include <math.h> +#include "e-reflow-sorted.h" +#include "e-canvas-utils.h" +#include "e-canvas.h" +#include "e-util.h" +#include <glib.h> +static void e_reflow_sorted_init (EReflowSorted *card); +static void e_reflow_sorted_class_init (EReflowSortedClass *klass); +static void e_reflow_sorted_set_arg (GtkObject *o, GtkArg *arg, guint arg_id); +static void e_reflow_sorted_get_arg (GtkObject *object, GtkArg *arg, guint arg_id); +static void e_reflow_sorted_add_item(EReflow *e_reflow, GnomeCanvasItem *item); + +static EReflowClass *parent_class = NULL; + +/* The arguments we take */ +enum { + ARG_0, + ARG_COMPARE_FUNC, + ARG_STRING_FUNC +}; + +GtkType +e_reflow_sorted_get_type (void) +{ + static GtkType reflow_type = 0; + + if (!reflow_type) + { + static const GtkTypeInfo reflow_info = + { + "EReflowSorted", + sizeof (EReflowSorted), + sizeof (EReflowSortedClass), + (GtkClassInitFunc) e_reflow_sorted_class_init, + (GtkObjectInitFunc) e_reflow_sorted_init, + /* reserved_1 */ NULL, + /* reserved_2 */ NULL, + (GtkClassInitFunc) NULL, + }; + + reflow_type = gtk_type_unique (e_reflow_get_type (), &reflow_info); + } + + return reflow_type; +} + +static void +e_reflow_sorted_class_init (EReflowSortedClass *klass) +{ + GtkObjectClass *object_class; + EReflowClass *reflow_class; + + object_class = (GtkObjectClass*) klass; + reflow_class = E_REFLOW_CLASS (klass); + + parent_class = gtk_type_class (e_reflow_get_type ()); + + gtk_object_add_arg_type ("EReflowSorted::compare_func", GTK_TYPE_POINTER, + GTK_ARG_READWRITE, ARG_COMPARE_FUNC); + gtk_object_add_arg_type ("EReflowSorted::string_func", GTK_TYPE_POINTER, + GTK_ARG_READWRITE, ARG_STRING_FUNC); + + reflow_class->add_item = e_reflow_sorted_add_item; + + object_class->set_arg = e_reflow_sorted_set_arg; + object_class->get_arg = e_reflow_sorted_get_arg; +} + +static void +e_reflow_sorted_init (EReflowSorted *reflow) +{ + reflow->compare_func = NULL; + reflow->string_func = NULL; +} + +static void +e_reflow_sorted_set_arg (GtkObject *o, GtkArg *arg, guint arg_id) +{ + GnomeCanvasItem *item; + EReflowSorted *e_reflow_sorted; + + item = GNOME_CANVAS_ITEM (o); + e_reflow_sorted = E_REFLOW_SORTED (o); + + switch (arg_id){ + case ARG_COMPARE_FUNC: + e_reflow_sorted->compare_func = GTK_VALUE_POINTER (*arg); + break; + case ARG_STRING_FUNC: + e_reflow_sorted->string_func = GTK_VALUE_POINTER (*arg); + break; + } +} + +static void +e_reflow_sorted_get_arg (GtkObject *object, GtkArg *arg, guint arg_id) +{ + EReflowSorted *e_reflow_sorted; + + e_reflow_sorted = E_REFLOW_SORTED (object); + + switch (arg_id) { + case ARG_COMPARE_FUNC: + GTK_VALUE_POINTER (*arg) = e_reflow_sorted->compare_func; + break; + case ARG_STRING_FUNC: + GTK_VALUE_POINTER (*arg) = e_reflow_sorted->string_func; + break; + default: + arg->type = GTK_TYPE_INVALID; + break; + } +} + +void +e_reflow_sorted_remove_item(EReflowSorted *e_reflow_sorted, const gchar *id) +{ + if (e_reflow_sorted->string_func) { + EReflow *reflow = E_REFLOW(e_reflow_sorted); + GList *list; + for (list = reflow->items; list; list = g_list_next(list)) { + GnomeCanvasItem *item = list->data; + char *string = e_reflow_sorted->string_func (item); + if (string && !strcmp(string, id)) { + reflow->items = g_list_remove_link(reflow->items, list); + g_list_free_1(list); + gtk_object_destroy(GTK_OBJECT(item)); + if ( GTK_OBJECT_FLAGS( e_reflow_sorted ) & GNOME_CANVAS_ITEM_REALIZED ) { + e_canvas_item_request_reflow(item); + } + return; + } + } + } +} + +void +e_reflow_sorted_replace_item(EReflowSorted *e_reflow_sorted, GnomeCanvasItem *item) +{ + if (e_reflow_sorted->string_func) { + char *string = e_reflow_sorted->string_func (item); + e_reflow_sorted_remove_item(e_reflow_sorted, string); + e_reflow_sorted_add_item(E_REFLOW(e_reflow_sorted), item); + } +} + + +static void +e_reflow_sorted_add_item(EReflow *reflow, GnomeCanvasItem *item) +{ + EReflowSorted *e_reflow_sorted = E_REFLOW_SORTED(reflow); + if ( e_reflow_sorted->compare_func ) { + reflow->items = g_list_insert_sorted(reflow->items, item, e_reflow_sorted->compare_func); + + if ( GTK_OBJECT_FLAGS( e_reflow_sorted ) & GNOME_CANVAS_ITEM_REALIZED ) { + gnome_canvas_item_set(item, + "width", (double) reflow->column_width, + NULL); + e_canvas_item_request_reflow(item); + } + } +} |