Added these classes.
2001-03-20 Christopher James Lahey <clahey@ximian.com> * e-table-memory-callbacks.c, e-table-memory-callbacks.h, e-table-memory.c, e-table-memory.h: Added these classes. * Makefile.am: Added e-table-memory-callbacks.c, e-table-memory-callbacks.h, e-table-memory.c, and e-table-memory.h. svn path=/trunk/; revision=8857
This commit is contained in:
Christopher James Lahey
committed by
Chris Lahey
Chris Lahey
parent
ad0bbfd8a0
commit
13cabd9ef2
254
widgets/table/e-table-memory-callbacks.c
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254
widgets/table/e-table-memory-callbacks.c
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@ -0,0 +1,254 @@
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* e-table-memory-callbacks.c: a simple table model implementation
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* that uses function pointers to simplify the creation of new, exotic
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* and colorful tables in no time.
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*
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* Author:
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* Miguel de Icaza (miguel@gnu.org)
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*
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* (C) 1999, 2000 Ximian, Inc.
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*/
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#include <config.h>
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#include "e-table-memory-callbacks.h"
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enum {
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ARG_0,
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ARG_APPEND_ROW,
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};
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#define PARENT_TYPE e_table_memory_get_type ()
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static int
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etmc_column_count (ETableModel *etm)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->col_count)
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return etmc->col_count (etm, etmc->data);
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else
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return 0;
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}
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static void *
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etmc_value_at (ETableModel *etm, int col, int row)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->value_at)
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return etmc->value_at (etm, col, row, etmc->data);
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else
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return NULL;
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}
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static void
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etmc_set_value_at (ETableModel *etm, int col, int row, const void *val)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->set_value_at)
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etmc->set_value_at (etm, col, row, val, etmc->data);
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}
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static gboolean
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etmc_is_cell_editable (ETableModel *etm, int col, int row)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->is_cell_editable)
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return etmc->is_cell_editable (etm, col, row, etmc->data);
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else
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return FALSE;
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}
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/* The default for etmc_duplicate_value is to return the raw value. */
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static void *
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etmc_duplicate_value (ETableModel *etm, int col, const void *value)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->duplicate_value)
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return etmc->duplicate_value (etm, col, value, etmc->data);
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else
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return (void *)value;
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}
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static void
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etmc_free_value (ETableModel *etm, int col, void *value)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->free_value)
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etmc->free_value (etm, col, value, etmc->data);
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}
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static void *
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etmc_initialize_value (ETableModel *etm, int col)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->initialize_value)
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return etmc->initialize_value (etm, col, etmc->data);
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else
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return NULL;
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}
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static gboolean
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etmc_value_is_empty (ETableModel *etm, int col, const void *value)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->value_is_empty)
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return etmc->value_is_empty (etm, col, value, etmc->data);
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else
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return FALSE;
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}
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static char *
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etmc_value_to_string (ETableModel *etm, int col, const void *value)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->value_to_string)
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return etmc->value_to_string (etm, col, value, etmc->data);
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else
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return g_strdup ("");
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}
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static void
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etmc_append_row (ETableModel *etm, ETableModel *source, int row)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
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if (etmc->append_row)
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etmc->append_row (etm, source, row, etmc->data);
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}
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static void
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etmc_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS (o);
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switch (arg_id){
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case ARG_APPEND_ROW:
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GTK_VALUE_POINTER(*arg) = etmc->append_row;
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break;
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}
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}
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static void
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etmc_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
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{
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ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS (o);
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switch (arg_id){
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case ARG_APPEND_ROW:
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etmc->append_row = GTK_VALUE_POINTER(*arg);
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break;
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default:
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arg->type = GTK_TYPE_INVALID;
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}
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}
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static void
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e_table_memory_callbacks_class_init (GtkObjectClass *object_class)
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{
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ETableModelClass *model_class = (ETableModelClass *) object_class;
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object_class->set_arg = etmc_set_arg;
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object_class->get_arg = etmc_get_arg;
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model_class->column_count = etmc_column_count;
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model_class->value_at = etmc_value_at;
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model_class->set_value_at = etmc_set_value_at;
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model_class->is_cell_editable = etmc_is_cell_editable;
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model_class->duplicate_value = etmc_duplicate_value;
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model_class->free_value = etmc_free_value;
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model_class->initialize_value = etmc_initialize_value;
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model_class->value_is_empty = etmc_value_is_empty;
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model_class->value_to_string = etmc_value_to_string;
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model_class->append_row = etmc_append_row;
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gtk_object_add_arg_type ("ETableMemoryCalbacks::append_row", GTK_TYPE_POINTER,
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GTK_ARG_READWRITE, ARG_APPEND_ROW);
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}
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GtkType
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e_table_memory_callbacks_get_type (void)
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{
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static GtkType type = 0;
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if (!type){
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GtkTypeInfo info = {
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"ETableMemoryCalbacks",
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sizeof (ETableMemoryCalbacks),
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sizeof (ETableMemoryCalbacksClass),
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(GtkClassInitFunc) e_table_memory_callbacks_class_init,
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(GtkObjectInitFunc) NULL,
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NULL, /* reserved 1 */
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NULL, /* reserved 2 */
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(GtkClassInitFunc) NULL
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};
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type = gtk_type_unique (PARENT_TYPE, &info);
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}
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return type;
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}
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/**
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* e_table_memory_callbacks_new:
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* @col_count:
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* @value_at:
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* @set_value_at:
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* @is_cell_editable:
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* @duplicate_value:
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* @free_value:
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* @initialize_value:
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* @value_is_empty:
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* @value_to_string:
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* @data: closure pointer.
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*
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* This initializes a new ETableMemoryCalbacksModel object. ETableMemoryCalbacksModel is
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* an implementaiton of the abstract class ETableModel. The ETableMemoryCalbacksModel
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* is designed to allow people to easily create ETableModels without having
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* to create a new GtkType derived from ETableModel every time they need one.
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*
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* Instead, ETableMemoryCalbacksModel uses a setup based in callback functions, every
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* callback function signature mimics the signature of each ETableModel method
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* and passes the extra @data pointer to each one of the method to provide them
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* with any context they might want to use.
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*
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* Returns: An ETableMemoryCalbacksModel object (which is also an ETableModel
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* object).
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*/
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ETableModel *
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e_table_memory_callbacks_new (ETableMemoryCalbacksColumnCountFn col_count,
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ETableMemoryCalbacksValueAtFn value_at,
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ETableMemoryCalbacksSetValueAtFn set_value_at,
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ETableMemoryCalbacksIsCellEditableFn is_cell_editable,
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ETableMemoryCalbacksDuplicateValueFn duplicate_value,
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ETableMemoryCalbacksFreeValueFn free_value,
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ETableMemoryCalbacksInitializeValueFn initialize_value,
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ETableMemoryCalbacksValueIsEmptyFn value_is_empty,
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ETableMemoryCalbacksValueToStringFn value_to_string,
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void *data)
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{
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ETableMemoryCalbacks *et;
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et = gtk_type_new (e_table_memory_callbacks_get_type ());
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et->col_count = col_count;
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et->value_at = value_at;
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et->set_value_at = set_value_at;
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et->is_cell_editable = is_cell_editable;
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et->duplicate_value = duplicate_value;
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et->free_value = free_value;
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et->initialize_value = initialize_value;
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et->value_is_empty = value_is_empty;
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et->value_to_string = value_to_string;
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et->data = data;
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return (ETableModel *) et;
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}
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72
widgets/table/e-table-memory-callbacks.h
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72
widgets/table/e-table-memory-callbacks.h
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@ -0,0 +1,72 @@
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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#ifndef _E_TABLE_MEMORY_CALLBACKS_H_
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#define _E_TABLE_MEMORY_CALLBACKS_H_
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#include <gal/e-table/e-table-memory.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define E_TABLE_MEMORY_CALLBACKS_TYPE (e_table_memory_callbacks_get_type ())
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#define E_TABLE_MEMORY_CALLBACKS(o) (GTK_CHECK_CAST ((o), E_TABLE_MEMORY_CALLBACKS_TYPE, ETableMemoryCalbacks))
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#define E_TABLE_MEMORY_CALLBACKS_CLASS(k) (GTK_CHECK_CLASS_CAST((k), E_TABLE_MEMORY_CALLBACKS_TYPE, ETableMemoryCalbacksClass))
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#define E_IS_TABLE_MEMORY_CALLBACKS(o) (GTK_CHECK_TYPE ((o), E_TABLE_MEMORY_CALLBACKS_TYPE))
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#define E_IS_TABLE_MEMORY_CALLBACKS_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_TABLE_MEMORY_CALLBACKS_TYPE))
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typedef int (*ETableMemoryCalbacksColumnCountFn) (ETableModel *etm, void *data);
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typedef void (*ETableMemoryCalbacksAppendRowFn) (ETableModel *etm, ETableModel *model, int row, void *data);
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typedef void *(*ETableMemoryCalbacksValueAtFn) (ETableModel *etm, int col, int row, void *data);
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typedef void (*ETableMemoryCalbacksSetValueAtFn) (ETableModel *etm, int col, int row, const void *val, void *data);
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typedef gboolean (*ETableMemoryCalbacksIsCellEditableFn) (ETableModel *etm, int col, int row, void *data);
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typedef void *(*ETableMemoryCalbacksDuplicateValueFn) (ETableModel *etm, int col, const void *val, void *data);
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typedef void (*ETableMemoryCalbacksFreeValueFn) (ETableModel *etm, int col, void *val, void *data);
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typedef void *(*ETableMemoryCalbacksInitializeValueFn) (ETableModel *etm, int col, void *data);
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typedef gboolean (*ETableMemoryCalbacksValueIsEmptyFn) (ETableModel *etm, int col, const void *val, void *data);
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typedef char *(*ETableMemoryCalbacksValueToStringFn) (ETableModel *etm, int col, const void *val, void *data);
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typedef struct {
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ETableMemory parent;
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ETableMemoryCalbacksColumnCountFn col_count;
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ETableMemoryCalbacksAppendRowFn append_row;
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ETableMemoryCalbacksValueAtFn value_at;
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ETableMemoryCalbacksSetValueAtFn set_value_at;
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ETableMemoryCalbacksIsCellEditableFn is_cell_editable;
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ETableMemoryCalbacksDuplicateValueFn duplicate_value;
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ETableMemoryCalbacksFreeValueFn free_value;
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ETableMemoryCalbacksInitializeValueFn initialize_value;
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ETableMemoryCalbacksValueIsEmptyFn value_is_empty;
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ETableMemoryCalbacksValueToStringFn value_to_string;
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void *data;
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} ETableMemoryCalbacks;
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typedef struct {
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ETableMemoryClass parent_class;
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} ETableMemoryCalbacksClass;
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GtkType e_table_memory_callbacks_get_type (void);
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ETableModel *e_table_memory_callbacks_new (ETableMemoryCalbacksColumnCountFn col_count,
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ETableMemoryCalbacksValueAtFn value_at,
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ETableMemoryCalbacksSetValueAtFn set_value_at,
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ETableMemoryCalbacksIsCellEditableFn is_cell_editable,
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ETableMemoryCalbacksDuplicateValueFn duplicate_value,
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ETableMemoryCalbacksFreeValueFn free_value,
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ETableMemoryCalbacksInitializeValueFn initialize_value,
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ETableMemoryCalbacksValueIsEmptyFn value_is_empty,
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ETableMemoryCalbacksValueToStringFn value_to_string,
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void *data);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* _E_TABLE_MEMORY_CALLBACKS_H_ */
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258
widgets/table/e-table-memory.c
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258
widgets/table/e-table-memory.c
Normal file
@ -0,0 +1,258 @@
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
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/*
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* e-table-memory.c: a Table Model implementation that the programmer builds in memory.
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*
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* Author:
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* Chris Toshok (toshok@ximian.com)
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* Chris Lahey <clahey@ximian.com>
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*
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* Adapted from the gtable code and ETableModel.
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*
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* (C) 2000, 2001 Ximian, Inc.
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*/
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#include <config.h>
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#include <stdio.h>
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#include <errno.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <gnome-xml/parser.h>
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#include <gnome-xml/xmlmemory.h>
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#include <gtk/gtksignal.h>
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#include <stdlib.h>
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#include "gal/util/e-util.h"
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#include "gal/util/e-xml-utils.h"
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#include "e-table-memory.h"
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#define PARENT_TYPE E_TABLE_MODEL_TYPE
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static ETableModel *parent_class;
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struct ETableMemoryPriv {
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gpointer *data;
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int num_rows;
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gint frozen;
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};
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/* virtual methods */
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static void
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etmm_destroy (GtkObject *object)
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{
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ETableMemory *etmm = E_TABLE_MEMORY (object);
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ETableMemoryPriv *priv = etmm->priv;
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/* XXX lots of stuff to free here */
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g_free (priv->data);
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g_free (priv);
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GTK_OBJECT_CLASS (parent_class)->destroy (object);
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}
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static int
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etmm_row_count (ETableModel *etm)
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{
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ETableMemory *etmm = E_TABLE_MEMORY (etm);
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return etmm->priv->num_rows;
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}
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static void
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e_table_memory_class_init (GtkObjectClass *klass)
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{
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ETableModelClass *table_class = (ETableModelClass *) klass;
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parent_class = gtk_type_class (PARENT_TYPE);
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klass->destroy = etmm_destroy;
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table_class->row_count = etmm_row_count;
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}
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static void
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e_table_memory_init (GtkObject *object)
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{
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ETableMemory *etmm = (ETableMemory *)object;
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ETableMemoryPriv *priv;
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priv = g_new0 (ETableMemoryPriv, 1);
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etmm->priv = priv;
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priv->data = NULL;
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priv->num_rows = 0;
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priv->frozen = 0;
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}
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E_MAKE_TYPE(e_table_memory, "ETableMemory", ETableMemory, e_table_memory_class_init, e_table_memory_init, PARENT_TYPE)
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/**
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* e_table_memory_construct:
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* @etable:
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*
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*
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**/
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void
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e_table_memory_construct (ETableMemory *etmm)
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{
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}
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/**
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* e_table_memory_new
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*
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* XXX docs here.
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*
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* return values: a newly constructed ETableMemory.
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*/
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ETableMemory *
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e_table_memory_new (void)
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{
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ETableMemory *etmm;
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etmm = gtk_type_new (e_table_memory_get_type ());
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e_table_memory_construct(etmm);
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return etmm;
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}
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/**
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* e_table_memory_node_get_data:
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* @etmm:
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* @node:
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||||
*
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||||
*
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||||
*
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||||
* Return value:
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||||
**/
|
||||
gpointer
|
||||
e_table_memory_get_data (ETableMemory *etmm, int row)
|
||||
{
|
||||
g_return_val_if_fail(row < 0, NULL);
|
||||
g_return_val_if_fail(row >= etmm->priv->num_rows, NULL);
|
||||
|
||||
return etmm->priv->data[row];
|
||||
}
|
||||
|
||||
/**
|
||||
* e_table_memory_node_set_data:
|
||||
* @etmm:
|
||||
* @node:
|
||||
* @node_data:
|
||||
*
|
||||
*
|
||||
**/
|
||||
void
|
||||
e_table_memory_set_data (ETableMemory *etmm, int row, gpointer node_data)
|
||||
{
|
||||
g_return_if_fail(row < 0);
|
||||
g_return_if_fail(row > etmm->priv->num_rows);
|
||||
|
||||
etmm->priv->data[row] = node_data;
|
||||
}
|
||||
|
||||
/**
|
||||
* e_table_memory_node_insert:
|
||||
* @table_model:
|
||||
* @parent_path:
|
||||
* @position:
|
||||
* @node_data:
|
||||
*
|
||||
*
|
||||
*
|
||||
* Return value:
|
||||
**/
|
||||
void
|
||||
e_table_memory_node_insert (ETableMemory *etmm,
|
||||
int row,
|
||||
gpointer node_data)
|
||||
{
|
||||
g_return_if_fail(row < 0);
|
||||
g_return_if_fail(row > etmm->priv->num_rows);
|
||||
|
||||
if (!etmm->priv->frozen)
|
||||
e_table_model_pre_change(E_TABLE_MODEL(etmm));
|
||||
etmm->priv->data = g_renew(gpointer, etmm->priv->data, etmm->priv->num_rows + 1);
|
||||
memmove(etmm->priv->data + row + 1, etmm->priv->data + row, (etmm->priv->num_rows - row) * sizeof (gpointer));
|
||||
etmm->priv->data[row] = node_data;
|
||||
etmm->priv->num_rows ++;
|
||||
if (!etmm->priv->frozen)
|
||||
e_table_model_row_inserted(E_TABLE_MODEL(etmm), row);
|
||||
}
|
||||
|
||||
|
||||
|
||||
/**
|
||||
* e_table_memory_node_remove:
|
||||
* @etable:
|
||||
* @path:
|
||||
*
|
||||
*
|
||||
*
|
||||
* Return value:
|
||||
**/
|
||||
gpointer
|
||||
e_table_memory_node_remove (ETableMemory *etmm, int row)
|
||||
{
|
||||
gpointer ret;
|
||||
|
||||
g_return_val_if_fail(row < 0, NULL);
|
||||
g_return_val_if_fail(row >= etmm->priv->num_rows, NULL);
|
||||
|
||||
if (!etmm->priv->frozen)
|
||||
e_table_model_pre_change(E_TABLE_MODEL(etmm));
|
||||
ret = etmm->priv->data[row];
|
||||
memmove(etmm->priv->data + row, etmm->priv->data + row + 1, (etmm->priv->num_rows - row - 1) * sizeof (gpointer));
|
||||
etmm->priv->num_rows --;
|
||||
if (!etmm->priv->frozen)
|
||||
e_table_model_row_deleted(E_TABLE_MODEL(etmm), row);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/**
|
||||
* e_table_memory_freeze:
|
||||
* @etmm: the ETableModel to freeze.
|
||||
*
|
||||
* This function prepares an ETableModel for a period of much change.
|
||||
* All signals regarding changes to the table are deferred until we
|
||||
* thaw the table.
|
||||
*
|
||||
**/
|
||||
void
|
||||
e_table_memory_freeze(ETableMemory *etmm)
|
||||
{
|
||||
ETableMemoryPriv *priv = etmm->priv;
|
||||
|
||||
if (priv->frozen == 0)
|
||||
e_table_model_pre_change(E_TABLE_MODEL(etmm));
|
||||
|
||||
priv->frozen ++;
|
||||
}
|
||||
|
||||
/**
|
||||
* e_table_memory_thaw:
|
||||
* @etmm: the ETableMemory to thaw.
|
||||
*
|
||||
* This function thaws an ETableMemory. All the defered signals can add
|
||||
* up to a lot, we don't know - so we just emit a model_changed
|
||||
* signal.
|
||||
*
|
||||
**/
|
||||
void
|
||||
e_table_memory_thaw(ETableMemory *etmm)
|
||||
{
|
||||
ETableMemoryPriv *priv = etmm->priv;
|
||||
|
||||
if (priv->frozen > 0)
|
||||
priv->frozen --;
|
||||
if (priv->frozen == 0) {
|
||||
e_table_model_changed(E_TABLE_MODEL(etmm));
|
||||
}
|
||||
}
|
||||
57
widgets/table/e-table-memory.h
Normal file
57
widgets/table/e-table-memory.h
Normal file
@ -0,0 +1,57 @@
|
||||
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
|
||||
#ifndef _E_TABLE_MEMORY_H_
|
||||
#define _E_TABLE_MEMORY_H_
|
||||
|
||||
#include <gdk-pixbuf/gdk-pixbuf.h>
|
||||
#include <gal/e-table/e-table-model.h>
|
||||
|
||||
#ifdef __cplusplus
|
||||
extern "C" {
|
||||
#endif /* __cplusplus */
|
||||
|
||||
|
||||
#define E_TABLE_MEMORY_TYPE (e_table_memory_get_type ())
|
||||
#define E_TABLE_MEMORY(o) (GTK_CHECK_CAST ((o), E_TABLE_MEMORY_TYPE, ETableMemory))
|
||||
#define E_TABLE_MEMORY_CLASS(k) (GTK_CHECK_CLASS_CAST((k), E_TABLE_MEMORY_TYPE, ETableMemoryClass))
|
||||
#define E_IS_TABLE_MEMORY(o) (GTK_CHECK_TYPE ((o), E_TABLE_MEMORY_TYPE))
|
||||
#define E_IS_TABLE_MEMORY_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_TABLE_MEMORY_TYPE))
|
||||
|
||||
typedef struct ETableMemory ETableMemory;
|
||||
typedef struct ETableMemoryPriv ETableMemoryPriv;
|
||||
typedef struct ETableMemoryClass ETableMemoryClass;
|
||||
|
||||
struct ETableMemory {
|
||||
ETableModel base;
|
||||
ETableMemoryPriv *priv;
|
||||
};
|
||||
|
||||
struct ETableMemoryClass {
|
||||
ETableModelClass parent_class;
|
||||
};
|
||||
|
||||
|
||||
GtkType e_table_memory_get_type (void);
|
||||
void e_table_memory_construct (ETableMemory *etable);
|
||||
ETableMemory *e_table_memory_new (void);
|
||||
|
||||
/* node operations */
|
||||
void e_table_memory_node_insert (ETableMemory *etable,
|
||||
int row,
|
||||
gpointer node_data);
|
||||
gpointer e_table_memory_node_remove (ETableMemory *etable,
|
||||
int row);
|
||||
|
||||
/* Freeze and thaw */
|
||||
void e_table_memory_freeze (ETableMemory *etable);
|
||||
void e_table_memory_thaw (ETableMemory *etable);
|
||||
gpointer e_table_memory_get_data (ETableMemory *etm,
|
||||
int row);
|
||||
void e_table_memory_set_data (ETableMemory *etm,
|
||||
int row,
|
||||
gpointer node_data);
|
||||
|
||||
#ifdef __cplusplus
|
||||
}
|
||||
#endif /* __cplusplus */
|
||||
|
||||
#endif /* _E_TABLE_MEMORY_H */
|
||||
Reference in New Issue
Block a user