/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ /* * e-table-simple.c * Copyright 2000, 2001, Ximian, Inc. * * Authors: * Chris Lahey * Miguel de Icaza * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Library General Public * License, version 2, as published by the Free Software Foundation. * * 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., 59 Temple Place - Suite 330, Boston, MA * 02111-1307, USA. */ #include #include "e-table-simple.h" #define PARENT_TYPE e_table_model_get_type () static int simple_column_count (ETableModel *etm) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->col_count) return simple->col_count (etm, simple->data); else return 0; } static int simple_row_count (ETableModel *etm) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->row_count) return simple->row_count (etm, simple->data); else return 0; } static void simple_append_row (ETableModel *etm, ETableModel *source, int row) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->append_row) simple->append_row (etm, source, row, simple->data); } static void * simple_value_at (ETableModel *etm, int col, int row) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->value_at) return simple->value_at (etm, col, row, simple->data); else return NULL; } static void simple_set_value_at (ETableModel *etm, int col, int row, const void *val) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->set_value_at) simple->set_value_at (etm, col, row, val, simple->data); } static gboolean simple_is_cell_editable (ETableModel *etm, int col, int row) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->is_cell_editable) return simple->is_cell_editable (etm, col, row, simple->data); else return FALSE; } static gboolean simple_has_save_id (ETableModel *etm) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->has_save_id) return simple->has_save_id (etm, simple->data); else return FALSE; } static char * simple_get_save_id (ETableModel *etm, int row) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->get_save_id) return simple->get_save_id (etm, row, simple->data); else return NULL; } /* The default for simple_duplicate_value is to return the raw value. */ static void * simple_duplicate_value (ETableModel *etm, int col, const void *value) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->duplicate_value) return simple->duplicate_value (etm, col, value, simple->data); else return (void *)value; } static void simple_free_value (ETableModel *etm, int col, void *value) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->free_value) simple->free_value (etm, col, value, simple->data); } static void * simple_initialize_value (ETableModel *etm, int col) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->initialize_value) return simple->initialize_value (etm, col, simple->data); else return NULL; } static gboolean simple_value_is_empty (ETableModel *etm, int col, const void *value) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->value_is_empty) return simple->value_is_empty (etm, col, value, simple->data); else return FALSE; } static char * simple_value_to_string (ETableModel *etm, int col, const void *value) { ETableSimple *simple = E_TABLE_SIMPLE(etm); if (simple->value_to_string) return simple->value_to_string (etm, col, value, simple->data); else return g_strdup (""); } static void e_table_simple_class_init (GtkObjectClass *object_class) { ETableModelClass *model_class = (ETableModelClass *) object_class; model_class->column_count = simple_column_count; model_class->row_count = simple_row_count; model_class->append_row = simple_append_row; model_class->value_at = simple_value_at; model_class->set_value_at = simple_set_value_at; model_class->is_cell_editable = simple_is_cell_editable; model_class->has_save_id = simple_has_save_id; model_class->get_save_id = simple_get_save_id; model_class->duplicate_value = simple_duplicate_value; model_class->free_value = simple_free_value; model_class->initialize_value = simple_initialize_value; model_class->value_is_empty = simple_value_is_empty; model_class->value_to_string = simple_value_to_string; } GtkType e_table_simple_get_type (void) { static GtkType type = 0; if (!type){ GtkTypeInfo info = { "ETableSimple", sizeof (ETableSimple), sizeof (ETableSimpleClass), (GtkClassInitFunc) e_table_simple_class_init, (GtkObjectInitFunc) NULL, NULL, /* reserved 1 */ NULL, /* reserved 2 */ (GtkClassInitFunc) NULL }; type = gtk_type_unique (PARENT_TYPE, &info); } return type; } /** * e_table_simple_new: * @col_count: * @row_count: * @value_at: * @set_value_at: * @is_cell_editable: * @duplicate_value: * @free_value: * @initialize_value: * @value_is_empty: * @value_to_string: * @data: closure pointer. * * This initializes a new ETableSimpleModel object. ETableSimpleModel is * an implementaiton of the abstract class ETableModel. The ETableSimpleModel * is designed to allow people to easily create ETableModels without having * to create a new GtkType derived from ETableModel every time they need one. * * Instead, ETableSimpleModel uses a setup based in callback functions, every * callback function signature mimics the signature of each ETableModel method * and passes the extra @data pointer to each one of the method to provide them * with any context they might want to use. * * Returns: An ETableSimpleModel object (which is also an ETableModel * object). */ ETableModel * e_table_simple_new (ETableSimpleColumnCountFn col_count, ETableSimpleRowCountFn row_count, ETableSimpleAppendRowFn append_row, ETableSimpleValueAtFn value_at, ETableSimpleSetValueAtFn set_value_at, ETableSimpleIsCellEditableFn is_cell_editable, ETableSimpleHasSaveIdFn has_save_id, ETableSimpleGetSaveIdFn get_save_id, ETableSimpleDuplicateValueFn duplicate_value, ETableSimpleFreeValueFn free_value, ETableSimpleInitializeValueFn initialize_value, ETableSimpleValueIsEmptyFn value_is_empty, ETableSimpleValueToStringFn value_to_string, void *data) { ETableSimple *et; et = gtk_type_new (e_table_simple_get_type ()); et->col_count = col_count; et->row_count = row_count; et->append_row = append_row; et->value_at = value_at; et->set_value_at = set_value_at; et->is_cell_editable = is_cell_editable; et->has_save_id = has_save_id; et->get_save_id = get_save_id; et->duplicate_value = duplicate_value; et->free_value = free_value; et->initialize_value = initialize_value; et->value_is_empty = value_is_empty; et->value_to_string = value_to_string; et->data = data; return (ETableModel *) et; } void * e_table_simple_string_duplicate_value (ETableModel *etm, int col, const void *val, void *data) { return g_strdup (val); } void e_table_simple_string_free_value (ETableModel *etm, int col, void *val, void *data) { g_free (val); } void * e_table_simple_string_initialize_value (ETableModel *etm, int col, void *data) { return g_strdup (""); } gboolean e_table_simple_string_value_is_empty (ETableModel *etm, int col, const void *val, void *data) { return !(val && * (char *) val); } char * e_table_simple_string_value_to_string (ETableModel *etm, int col, const void *val, void *data) { return g_strdup (val); }