diff options
Diffstat (limited to 'widgets/table/e-table-one.c')
| -rw-r--r-- | widgets/table/e-table-one.c | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/widgets/table/e-table-one.c b/widgets/table/e-table-one.c new file mode 100644 index 0000000000..73022a5801 --- /dev/null +++ b/widgets/table/e-table-one.c @@ -0,0 +1,244 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */ +/* + * e-table-model.c: a one table model implementation that uses function + * pointers to simplify the creation of new, exotic and colorful tables in + * no time. + * + * Author: + * Miguel de Icaza (miguel@gnu.org) + * + * (C) 1999 Helix Code, Inc. + */ + +#include <config.h> +#include "e-table-one.h" + +#define PARENT_TYPE e_table_model_get_type () + +static int +one_column_count (ETableModel *etm) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_column_count(one->source); + else + return 0; +} + +static int +one_row_count (ETableModel *etm) +{ + return 1; +} + +static void * +one_value_at (ETableModel *etm, int col, int row) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->data) + return one->data[col]; + else + return NULL; +} + +static void +one_set_value_at (ETableModel *etm, int col, int row, const void *val) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->data && one->source) { + e_table_model_free_value(one->source, col, one->data[col]); + one->data[col] = e_table_model_duplicate_value(one->source, col, val); + } +} + +static gboolean +one_is_cell_editable (ETableModel *etm, int col, int row) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_is_cell_editable(one->source, 0, row); + else + return FALSE; +} + +/* The default for one_duplicate_value is to return the raw value. */ +static void * +one_duplicate_value (ETableModel *etm, int col, const void *value) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_duplicate_value(one->source, col, value); + else + return (void *)value; +} + +static void +one_free_value (ETableModel *etm, int col, void *value) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + e_table_model_free_value(one->source, col, value); +} + +static void * +one_initialize_value (ETableModel *etm, int col) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_initialize_value (one->source, col); + else + return NULL; +} + +static gboolean +one_value_is_empty (ETableModel *etm, int col, const void *value) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_value_is_empty (one->source, col, value); + else + return FALSE; +} + +static char * +one_value_to_string (ETableModel *etm, int col, const void *value) +{ + ETableOne *one = E_TABLE_ONE(etm); + + if (one->source) + return e_table_model_value_to_string (one->source, col, value); + else + return g_strdup(""); +} + +static void +one_destroy (GtkObject *object) +{ + ETableOne *one = E_TABLE_ONE(object); + + if (one->source) { + int i; + int col_count; + + col_count = e_table_model_column_count(one->source); + + if (one->data) { + for (i = 0; i < col_count; i++) { + e_table_model_free_value(one->source, i, one->data[i]); + } + } + + gtk_object_unref(GTK_OBJECT(one->source)); + } + + g_free(one->data); +} + +static void +e_table_one_class_init (GtkObjectClass *object_class) +{ + ETableModelClass *model_class = (ETableModelClass *) object_class; + + model_class->column_count = one_column_count; + model_class->row_count = one_row_count; + model_class->value_at = one_value_at; + model_class->set_value_at = one_set_value_at; + model_class->is_cell_editable = one_is_cell_editable; + model_class->duplicate_value = one_duplicate_value; + model_class->free_value = one_free_value; + model_class->initialize_value = one_initialize_value; + model_class->value_is_empty = one_value_is_empty; + model_class->value_to_string = one_value_to_string; + + object_class->destroy = one_destroy; +} + +static void +e_table_one_init (GtkObject *object) +{ + ETableOne *one = E_TABLE_ONE(object); + + one->source = NULL; + one->data = NULL; +} + +GtkType +e_table_one_get_type (void) +{ + static GtkType type = 0; + + if (!type){ + GtkTypeInfo info = { + "ETableOne", + sizeof (ETableOne), + sizeof (ETableOneClass), + (GtkClassInitFunc) e_table_one_class_init, + (GtkObjectInitFunc) e_table_one_init, + NULL, /* reserved 1 */ + NULL, /* reserved 2 */ + (GtkClassInitFunc) NULL + }; + + type = gtk_type_unique (PARENT_TYPE, &info); + } + + return type; +} + +ETableModel * +e_table_one_new (ETableModel *source) +{ + ETableOne *eto; + int col_count; + int i; + + eto = gtk_type_new (e_table_one_get_type ()); + + eto->source = source; + + col_count = e_table_model_column_count(source); + eto->data = g_new(void *, col_count); + for (i = 0; i < col_count; i++) { + eto->data[i] = e_table_model_initialize_value(source, i); + } + + if (source) + gtk_object_ref(GTK_OBJECT(source)); + + return (ETableModel *) eto; +} + +gint +e_table_one_commit (ETableOne *one) +{ + if (one->source) { + int empty = TRUE; + int col; + int cols = e_table_model_column_count(one->source); + for (col = 0; col < cols; col++) { + if (!e_table_model_value_is_empty(one->source, col, one->data[col])) { + empty = FALSE; + break; + } + } + + if (!empty) { + int row = e_table_model_append_row(one->source); + if (row != -1) { + for (col = 0; col < cols; col++) { + e_table_model_set_value_at(one->source, col, row, one->data[col]); + } + } + return row; + } + } + return -1; +} |