Commit 13cabd9e authored by Christopher James Lahey's avatar Christopher James Lahey Committed by Chris Lahey

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
parent ad0bbfd8
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-table-memory-callbacks.c: a simple 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, 2000 Ximian, Inc.
*/
#include <config.h>
#include "e-table-memory-callbacks.h"
enum {
ARG_0,
ARG_APPEND_ROW,
};
#define PARENT_TYPE e_table_memory_get_type ()
static int
etmc_column_count (ETableModel *etm)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->col_count)
return etmc->col_count (etm, etmc->data);
else
return 0;
}
static void *
etmc_value_at (ETableModel *etm, int col, int row)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->value_at)
return etmc->value_at (etm, col, row, etmc->data);
else
return NULL;
}
static void
etmc_set_value_at (ETableModel *etm, int col, int row, const void *val)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->set_value_at)
etmc->set_value_at (etm, col, row, val, etmc->data);
}
static gboolean
etmc_is_cell_editable (ETableModel *etm, int col, int row)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->is_cell_editable)
return etmc->is_cell_editable (etm, col, row, etmc->data);
else
return FALSE;
}
/* The default for etmc_duplicate_value is to return the raw value. */
static void *
etmc_duplicate_value (ETableModel *etm, int col, const void *value)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->duplicate_value)
return etmc->duplicate_value (etm, col, value, etmc->data);
else
return (void *)value;
}
static void
etmc_free_value (ETableModel *etm, int col, void *value)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->free_value)
etmc->free_value (etm, col, value, etmc->data);
}
static void *
etmc_initialize_value (ETableModel *etm, int col)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->initialize_value)
return etmc->initialize_value (etm, col, etmc->data);
else
return NULL;
}
static gboolean
etmc_value_is_empty (ETableModel *etm, int col, const void *value)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->value_is_empty)
return etmc->value_is_empty (etm, col, value, etmc->data);
else
return FALSE;
}
static char *
etmc_value_to_string (ETableModel *etm, int col, const void *value)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->value_to_string)
return etmc->value_to_string (etm, col, value, etmc->data);
else
return g_strdup ("");
}
static void
etmc_append_row (ETableModel *etm, ETableModel *source, int row)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS(etm);
if (etmc->append_row)
etmc->append_row (etm, source, row, etmc->data);
}
static void
etmc_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS (o);
switch (arg_id){
case ARG_APPEND_ROW:
GTK_VALUE_POINTER(*arg) = etmc->append_row;
break;
}
}
static void
etmc_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETableMemoryCalbacks *etmc = E_TABLE_MEMORY_CALLBACKS (o);
switch (arg_id){
case ARG_APPEND_ROW:
etmc->append_row = GTK_VALUE_POINTER(*arg);
break;
default:
arg->type = GTK_TYPE_INVALID;
}
}
static void
e_table_memory_callbacks_class_init (GtkObjectClass *object_class)
{
ETableModelClass *model_class = (ETableModelClass *) object_class;
object_class->set_arg = etmc_set_arg;
object_class->get_arg = etmc_get_arg;
model_class->column_count = etmc_column_count;
model_class->value_at = etmc_value_at;
model_class->set_value_at = etmc_set_value_at;
model_class->is_cell_editable = etmc_is_cell_editable;
model_class->duplicate_value = etmc_duplicate_value;
model_class->free_value = etmc_free_value;
model_class->initialize_value = etmc_initialize_value;
model_class->value_is_empty = etmc_value_is_empty;
model_class->value_to_string = etmc_value_to_string;
model_class->append_row = etmc_append_row;
gtk_object_add_arg_type ("ETableMemoryCalbacks::append_row", GTK_TYPE_POINTER,
GTK_ARG_READWRITE, ARG_APPEND_ROW);
}
GtkType
e_table_memory_callbacks_get_type (void)
{
static GtkType type = 0;
if (!type){
GtkTypeInfo info = {
"ETableMemoryCalbacks",
sizeof (ETableMemoryCalbacks),
sizeof (ETableMemoryCalbacksClass),
(GtkClassInitFunc) e_table_memory_callbacks_class_init,
(GtkObjectInitFunc) NULL,
NULL, /* reserved 1 */
NULL, /* reserved 2 */
(GtkClassInitFunc) NULL
};
type = gtk_type_unique (PARENT_TYPE, &info);
}
return type;
}
/**
* e_table_memory_callbacks_new:
* @col_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 ETableMemoryCalbacksModel object. ETableMemoryCalbacksModel is
* an implementaiton of the abstract class ETableModel. The ETableMemoryCalbacksModel
* 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, ETableMemoryCalbacksModel 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 ETableMemoryCalbacksModel object (which is also an ETableModel
* object).
*/
ETableModel *
e_table_memory_callbacks_new (ETableMemoryCalbacksColumnCountFn col_count,
ETableMemoryCalbacksValueAtFn value_at,
ETableMemoryCalbacksSetValueAtFn set_value_at,
ETableMemoryCalbacksIsCellEditableFn is_cell_editable,
ETableMemoryCalbacksDuplicateValueFn duplicate_value,
ETableMemoryCalbacksFreeValueFn free_value,
ETableMemoryCalbacksInitializeValueFn initialize_value,
ETableMemoryCalbacksValueIsEmptyFn value_is_empty,
ETableMemoryCalbacksValueToStringFn value_to_string,
void *data)
{
ETableMemoryCalbacks *et;
et = gtk_type_new (e_table_memory_callbacks_get_type ());
et->col_count = col_count;
et->value_at = value_at;
et->set_value_at = set_value_at;
et->is_cell_editable = is_cell_editable;
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;
}
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
#ifndef _E_TABLE_MEMORY_CALLBACKS_H_
#define _E_TABLE_MEMORY_CALLBACKS_H_
#include <gal/e-table/e-table-memory.h>
#ifdef __cplusplus
extern "C" {
#endif /* __cplusplus */
#define E_TABLE_MEMORY_CALLBACKS_TYPE (e_table_memory_callbacks_get_type ())
#define E_TABLE_MEMORY_CALLBACKS(o) (GTK_CHECK_CAST ((o), E_TABLE_MEMORY_CALLBACKS_TYPE, ETableMemoryCalbacks))
#define E_TABLE_MEMORY_CALLBACKS_CLASS(k) (GTK_CHECK_CLASS_CAST((k), E_TABLE_MEMORY_CALLBACKS_TYPE, ETableMemoryCalbacksClass))
#define E_IS_TABLE_MEMORY_CALLBACKS(o) (GTK_CHECK_TYPE ((o), E_TABLE_MEMORY_CALLBACKS_TYPE))
#define E_IS_TABLE_MEMORY_CALLBACKS_CLASS(k) (GTK_CHECK_CLASS_TYPE ((k), E_TABLE_MEMORY_CALLBACKS_TYPE))
typedef int (*ETableMemoryCalbacksColumnCountFn) (ETableModel *etm, void *data);
typedef void (*ETableMemoryCalbacksAppendRowFn) (ETableModel *etm, ETableModel *model, int row, void *data);
typedef void *(*ETableMemoryCalbacksValueAtFn) (ETableModel *etm, int col, int row, void *data);
typedef void (*ETableMemoryCalbacksSetValueAtFn) (ETableModel *etm, int col, int row, const void *val, void *data);
typedef gboolean (*ETableMemoryCalbacksIsCellEditableFn) (ETableModel *etm, int col, int row, void *data);
typedef void *(*ETableMemoryCalbacksDuplicateValueFn) (ETableModel *etm, int col, const void *val, void *data);
typedef void (*ETableMemoryCalbacksFreeValueFn) (ETableModel *etm, int col, void *val, void *data);
typedef void *(*ETableMemoryCalbacksInitializeValueFn) (ETableModel *etm, int col, void *data);
typedef gboolean (*ETableMemoryCalbacksValueIsEmptyFn) (ETableModel *etm, int col, const void *val, void *data);
typedef char *(*ETableMemoryCalbacksValueToStringFn) (ETableModel *etm, int col, const void *val, void *data);
typedef struct {
ETableMemory parent;
ETableMemoryCalbacksColumnCountFn col_count;
ETableMemoryCalbacksAppendRowFn append_row;
ETableMemoryCalbacksValueAtFn value_at;
ETableMemoryCalbacksSetValueAtFn set_value_at;
ETableMemoryCalbacksIsCellEditableFn is_cell_editable;
ETableMemoryCalbacksDuplicateValueFn duplicate_value;
ETableMemoryCalbacksFreeValueFn free_value;
ETableMemoryCalbacksInitializeValueFn initialize_value;
ETableMemoryCalbacksValueIsEmptyFn value_is_empty;
ETableMemoryCalbacksValueToStringFn value_to_string;
void *data;
} ETableMemoryCalbacks;
typedef struct {
ETableMemoryClass parent_class;
} ETableMemoryCalbacksClass;
GtkType e_table_memory_callbacks_get_type (void);
ETableModel *e_table_memory_callbacks_new (ETableMemoryCalbacksColumnCountFn col_count,
ETableMemoryCalbacksValueAtFn value_at,
ETableMemoryCalbacksSetValueAtFn set_value_at,
ETableMemoryCalbacksIsCellEditableFn is_cell_editable,
ETableMemoryCalbacksDuplicateValueFn duplicate_value,
ETableMemoryCalbacksFreeValueFn free_value,
ETableMemoryCalbacksInitializeValueFn initialize_value,
ETableMemoryCalbacksValueIsEmptyFn value_is_empty,
ETableMemoryCalbacksValueToStringFn value_to_string,
void *data);
#ifdef __cplusplus
}
#endif /* __cplusplus */
#endif /* _E_TABLE_MEMORY_CALLBACKS_H_ */
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-table-memory.c: a Table Model implementation that the programmer builds in memory.
*
* Author:
* Chris Toshok (toshok@ximian.com)
* Chris Lahey <clahey@ximian.com>
*
* Adapted from the gtable code and ETableModel.
*
* (C) 2000, 2001 Ximian, Inc.
*/
#include <config.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <fcntl.h>
#include <gnome-xml/parser.h>
#include <gnome-xml/xmlmemory.h>
#include <gtk/gtksignal.h>
#include <stdlib.h>
#include "gal/util/e-util.h"
#include "gal/util/e-xml-utils.h"
#include "e-table-memory.h"
#define PARENT_TYPE E_TABLE_MODEL_TYPE
static ETableModel *parent_class;
struct ETableMemoryPriv {
gpointer *data;
int num_rows;
gint frozen;
};
/* virtual methods */
static void
etmm_destroy (GtkObject *object)
{
ETableMemory *etmm = E_TABLE_MEMORY (object);
ETableMemoryPriv *priv = etmm->priv;
/* XXX lots of stuff to free here */
g_free (priv->data);
g_free (priv);
GTK_OBJECT_CLASS (parent_class)->destroy (object);
}
static int
etmm_row_count (ETableModel *etm)
{
ETableMemory *etmm = E_TABLE_MEMORY (etm);
return etmm->priv->num_rows;
}
static void
e_table_memory_class_init (GtkObjectClass *klass)
{
ETableModelClass *table_class = (ETableModelClass *) klass;
parent_class = gtk_type_class (PARENT_TYPE);
klass->destroy = etmm_destroy;
table_class->row_count = etmm_row_count;
}
static void
e_table_memory_init (GtkObject *object)
{
ETableMemory *etmm = (ETableMemory *)object;
ETableMemoryPriv *priv;
priv = g_new0 (ETableMemoryPriv, 1);
etmm->priv = priv;
priv->data = NULL;
priv->num_rows = 0;
priv->frozen = 0;
}
E_MAKE_TYPE(e_table_memory, "ETableMemory", ETableMemory, e_table_memory_class_init, e_table_memory_init, PARENT_TYPE)
/**
* e_table_memory_construct:
* @etable:
*
*
**/
void
e_table_memory_construct (ETableMemory *etmm)
{
}
/**
* e_table_memory_new
*
* XXX docs here.
*
* return values: a newly constructed ETableMemory.
*/
ETableMemory *
e_table_memory_new (void)
{
ETableMemory *etmm;
etmm = gtk_type_new (e_table_memory_get_type ());
e_table_memory_construct(etmm);
return etmm;
}
/**
* e_table_memory_node_get_data:
* @etmm:
* @node:
*
*
*
* Return value:
**/
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));
}
}
/* -*- 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 */
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment