gtk2/gtk/gtknumericsorter.c
Matthias Clasen e499a09759 Drop gtkintl.h
Include gtkprivate.h for I_() and glib-i18n.h for
gettext macros.
2022-09-24 10:03:37 -04:00

688 lines
22 KiB
C

/*
* Copyright © 2019 Matthias Clasen
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*
* Authors: Matthias Clasen <mclasen@redhat.com>
*/
#include "config.h"
#include "gtknumericsorter.h"
#include "gtksorterprivate.h"
#include "gtktypebuiltins.h"
#include <math.h>
/**
* GtkNumericSorter:
*
* `GtkNumericSorter` is a `GtkSorter` that compares numbers.
*
* To obtain the numbers to compare, this sorter evaluates a
* [class@Gtk.Expression].
*/
struct _GtkNumericSorter
{
GtkSorter parent_instance;
GtkSortType sort_order;
GtkExpression *expression;
};
enum {
PROP_0,
PROP_EXPRESSION,
PROP_SORT_ORDER,
NUM_PROPERTIES
};
G_DEFINE_TYPE (GtkNumericSorter, gtk_numeric_sorter, GTK_TYPE_SORTER)
static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
#define DO_COMPARISON(_result, _type, _getter, _order) G_STMT_START{ \
_type num1 = _getter (&value1); \
_type num2 = _getter (&value2); \
\
if (num1 < num2) \
_result = _order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER; \
else if (num1 > num2) \
_result = _order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER; \
else \
_result = GTK_ORDERING_EQUAL; \
}G_STMT_END
typedef struct _GtkNumericSortKeys GtkNumericSortKeys;
struct _GtkNumericSortKeys
{
GtkSortKeys keys;
GtkExpression *expression;
};
static void
gtk_numeric_sort_keys_free (GtkSortKeys *keys)
{
GtkNumericSortKeys *self = (GtkNumericSortKeys *) keys;
gtk_expression_unref (self->expression);
g_slice_free (GtkNumericSortKeys, self);
}
#define COMPARE_FUNC(type, name, _a, _b) \
static int \
gtk_ ## type ## _sort_keys_compare_ ## name (gconstpointer a, \
gconstpointer b, \
gpointer unused) \
{ \
type num1 = *(type *) _a; \
type num2 = *(type *) _b; \
\
if (num1 < num2) \
return GTK_ORDERING_SMALLER; \
else if (num1 > num2) \
return GTK_ORDERING_LARGER; \
else \
return GTK_ORDERING_EQUAL; \
}
#define COMPARE_FUNCS(type) \
COMPARE_FUNC(type, ascending, a, b) \
COMPARE_FUNC(type, descending, b, a)
#define FLOAT_COMPARE_FUNC(type, name, _a, _b) \
static int \
gtk_ ## type ## _sort_keys_compare_ ## name (gconstpointer a, \
gconstpointer b, \
gpointer unused) \
{ \
type num1 = *(type *) _a; \
type num2 = *(type *) _b; \
\
if (isnan (num1) && isnan (num2)) \
return GTK_ORDERING_EQUAL; \
else if (isnan (num1)) \
return GTK_ORDERING_LARGER; \
else if (isnan (num2)) \
return GTK_ORDERING_SMALLER; \
else if (num1 < num2) \
return GTK_ORDERING_SMALLER; \
else if (num1 > num2) \
return GTK_ORDERING_LARGER; \
else \
return GTK_ORDERING_EQUAL; \
}
#define FLOAT_COMPARE_FUNCS(type) \
FLOAT_COMPARE_FUNC(type, ascending, a, b) \
FLOAT_COMPARE_FUNC(type, descending, b, a)
COMPARE_FUNCS(char)
COMPARE_FUNCS(guchar)
COMPARE_FUNCS(int)
COMPARE_FUNCS(guint)
FLOAT_COMPARE_FUNCS(float)
FLOAT_COMPARE_FUNCS(double)
COMPARE_FUNCS(long)
COMPARE_FUNCS(gulong)
COMPARE_FUNCS(gint64)
COMPARE_FUNCS(guint64)
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
#define NUMERIC_SORT_KEYS(TYPE, key_type, type, default_value) \
static void \
gtk_ ## type ## _sort_keys_init_key (GtkSortKeys *keys, \
gpointer item, \
gpointer key_memory) \
{ \
GtkNumericSortKeys *self = (GtkNumericSortKeys *) keys; \
key_type *key = (key_type *) key_memory; \
GValue value = G_VALUE_INIT; \
\
if (gtk_expression_evaluate (self->expression, item, &value)) \
*key = g_value_get_ ## type (&value); \
else \
*key = default_value; \
\
g_value_unset (&value); \
} \
\
static gboolean \
gtk_ ## type ## _sort_keys_is_compatible (GtkSortKeys *keys, \
GtkSortKeys *other); \
\
static const GtkSortKeysClass GTK_ASCENDING_ ## TYPE ## _SORT_KEYS_CLASS = \
{ \
gtk_numeric_sort_keys_free, \
gtk_ ## key_type ## _sort_keys_compare_ascending, \
gtk_ ## type ## _sort_keys_is_compatible, \
gtk_ ## type ## _sort_keys_init_key, \
NULL \
}; \
\
static const GtkSortKeysClass GTK_DESCENDING_ ## TYPE ## _SORT_KEYS_CLASS = \
{ \
gtk_numeric_sort_keys_free, \
gtk_ ## key_type ## _sort_keys_compare_descending, \
gtk_ ## type ## _sort_keys_is_compatible, \
gtk_ ## type ## _sort_keys_init_key, \
NULL \
}; \
\
static gboolean \
gtk_ ## type ## _sort_keys_is_compatible (GtkSortKeys *keys, \
GtkSortKeys *other) \
{ \
GtkNumericSorter *self = (GtkNumericSorter *) keys; \
GtkNumericSorter *compare = (GtkNumericSorter *) other; \
\
if (other->klass != &GTK_ASCENDING_ ## TYPE ## _SORT_KEYS_CLASS && \
other->klass != &GTK_DESCENDING_ ## TYPE ## _SORT_KEYS_CLASS) \
return FALSE; \
\
return self->expression == compare->expression; \
}
NUMERIC_SORT_KEYS(BOOLEAN, char, boolean, FALSE)
NUMERIC_SORT_KEYS(CHAR, char, char, G_MININT8)
NUMERIC_SORT_KEYS(UCHAR, guchar, uchar, G_MAXUINT8)
NUMERIC_SORT_KEYS(INT, int, int, G_MININT)
NUMERIC_SORT_KEYS(UINT, guint, uint, G_MAXUINT)
NUMERIC_SORT_KEYS(FLOAT, float, float, NAN)
NUMERIC_SORT_KEYS(DOUBLE, double, double, NAN)
NUMERIC_SORT_KEYS(LONG, long, long, G_MINLONG)
NUMERIC_SORT_KEYS(ULONG, gulong, ulong, G_MAXLONG)
NUMERIC_SORT_KEYS(INT64, gint64, int64, G_MININT64)
NUMERIC_SORT_KEYS(UINT64, guint64, uint64, G_MAXUINT64)
G_GNUC_END_IGNORE_DEPRECATIONS
static GtkSortKeys *
gtk_numeric_sort_keys_new (GtkNumericSorter *self)
{
GtkNumericSortKeys *result;
if (self->expression == NULL)
return gtk_sort_keys_new_equal ();
switch (gtk_expression_get_value_type (self->expression))
{
case G_TYPE_BOOLEAN:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_BOOLEAN_SORT_KEYS_CLASS
: &GTK_DESCENDING_BOOLEAN_SORT_KEYS_CLASS,
sizeof (char),
sizeof (char));
break;
case G_TYPE_CHAR:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_CHAR_SORT_KEYS_CLASS
: &GTK_DESCENDING_CHAR_SORT_KEYS_CLASS,
sizeof (char),
sizeof (char));
break;
case G_TYPE_UCHAR:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_UCHAR_SORT_KEYS_CLASS
: &GTK_DESCENDING_UCHAR_SORT_KEYS_CLASS,
sizeof (guchar),
sizeof (guchar));
break;
case G_TYPE_INT:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_INT_SORT_KEYS_CLASS
: &GTK_DESCENDING_INT_SORT_KEYS_CLASS,
sizeof (int),
sizeof (int));
break;
case G_TYPE_UINT:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_UINT_SORT_KEYS_CLASS
: &GTK_DESCENDING_UINT_SORT_KEYS_CLASS,
sizeof (guint),
sizeof (guint));
break;
case G_TYPE_FLOAT:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_FLOAT_SORT_KEYS_CLASS
: &GTK_DESCENDING_FLOAT_SORT_KEYS_CLASS,
sizeof (float),
sizeof (float));
break;
case G_TYPE_DOUBLE:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_DOUBLE_SORT_KEYS_CLASS
: &GTK_DESCENDING_DOUBLE_SORT_KEYS_CLASS,
sizeof (double),
sizeof (double));
break;
case G_TYPE_LONG:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_LONG_SORT_KEYS_CLASS
: &GTK_DESCENDING_LONG_SORT_KEYS_CLASS,
sizeof (long),
sizeof (long));
break;
case G_TYPE_ULONG:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_ULONG_SORT_KEYS_CLASS
: &GTK_DESCENDING_ULONG_SORT_KEYS_CLASS,
sizeof (gulong),
sizeof (gulong));
break;
case G_TYPE_INT64:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_INT64_SORT_KEYS_CLASS
: &GTK_DESCENDING_INT64_SORT_KEYS_CLASS,
sizeof (gint64),
sizeof (gint64));
break;
case G_TYPE_UINT64:
result = gtk_sort_keys_new (GtkNumericSortKeys,
self->sort_order == GTK_SORT_ASCENDING
? &GTK_ASCENDING_UINT64_SORT_KEYS_CLASS
: &GTK_DESCENDING_UINT64_SORT_KEYS_CLASS,
sizeof (guint64),
sizeof (guint64));
break;
default:
g_critical ("Invalid value type %s for expression\n", g_type_name (gtk_expression_get_value_type (self->expression)));
return gtk_sort_keys_new_equal ();
}
result->expression = gtk_expression_ref (self->expression);
return (GtkSortKeys *) result;
}
G_GNUC_BEGIN_IGNORE_DEPRECATIONS
static GtkOrdering
gtk_numeric_sorter_compare (GtkSorter *sorter,
gpointer item1,
gpointer item2)
{
GtkNumericSorter *self = GTK_NUMERIC_SORTER (sorter);
GValue value1 = G_VALUE_INIT;
GValue value2 = G_VALUE_INIT;
gboolean res1, res2;
GtkOrdering result;
if (self->expression == NULL)
return GTK_ORDERING_EQUAL;
res1 = gtk_expression_evaluate (self->expression, item1, &value1);
res2 = gtk_expression_evaluate (self->expression, item2, &value2);
/* If items don't evaluate, order them at the end, so they aren't
* in the way. */
if (!res1)
{
result = res2 ? GTK_ORDERING_LARGER : GTK_ORDERING_EQUAL;
goto out;
}
else if (!res2)
{
result = GTK_ORDERING_SMALLER;
goto out;
}
switch (g_type_fundamental (G_VALUE_TYPE (&value1)))
{
case G_TYPE_BOOLEAN:
DO_COMPARISON (result, gboolean, g_value_get_boolean, self->sort_order);
break;
case G_TYPE_CHAR:
DO_COMPARISON (result, char, g_value_get_char, self->sort_order);
break;
case G_TYPE_UCHAR:
DO_COMPARISON (result, guchar, g_value_get_uchar, self->sort_order);
break;
case G_TYPE_INT:
DO_COMPARISON (result, int, g_value_get_int, self->sort_order);
break;
case G_TYPE_UINT:
DO_COMPARISON (result, guint, g_value_get_uint, self->sort_order);
break;
case G_TYPE_FLOAT:
{
float num1 = g_value_get_float (&value1);
float num2 = g_value_get_float (&value2);
if (isnan (num1) && isnan (num2))
result = GTK_ORDERING_EQUAL;
else if (isnan (num1))
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER;
else if (isnan (num2))
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER;
else if (num1 < num2)
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER;
else if (num1 > num2)
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER;
else
result = GTK_ORDERING_EQUAL;
break;
}
case G_TYPE_DOUBLE:
{
double num1 = g_value_get_double (&value1);
double num2 = g_value_get_double (&value2);
if (isnan (num1) && isnan (num2))
result = GTK_ORDERING_EQUAL;
else if (isnan (num1))
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER;
else if (isnan (num2))
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER;
else if (num1 < num2)
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER;
else if (num1 > num2)
result = self->sort_order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER;
else
result = GTK_ORDERING_EQUAL;
break;
}
case G_TYPE_LONG:
DO_COMPARISON (result, long, g_value_get_long, self->sort_order);
break;
case G_TYPE_ULONG:
DO_COMPARISON (result, gulong, g_value_get_ulong, self->sort_order);
break;
case G_TYPE_INT64:
DO_COMPARISON (result, gint64, g_value_get_int64, self->sort_order);
break;
case G_TYPE_UINT64:
DO_COMPARISON (result, guint64, g_value_get_uint64, self->sort_order);
break;
default:
g_critical ("Invalid value type %s for expression\n", g_type_name (gtk_expression_get_value_type (self->expression)));
result = GTK_ORDERING_EQUAL;
break;
}
out:
g_value_unset (&value1);
g_value_unset (&value2);
return result;
}
G_GNUC_END_IGNORE_DEPRECATIONS
static GtkSorterOrder
gtk_numeric_sorter_get_order (GtkSorter *sorter)
{
GtkNumericSorter *self = GTK_NUMERIC_SORTER (sorter);
if (self->expression == NULL)
return GTK_SORTER_ORDER_NONE;
return GTK_SORTER_ORDER_PARTIAL;
}
static void
gtk_numeric_sorter_set_property (GObject *object,
guint prop_id,
const GValue *value,
GParamSpec *pspec)
{
GtkNumericSorter *self = GTK_NUMERIC_SORTER (object);
switch (prop_id)
{
case PROP_EXPRESSION:
gtk_numeric_sorter_set_expression (self, gtk_value_get_expression (value));
break;
case PROP_SORT_ORDER:
gtk_numeric_sorter_set_sort_order (self, g_value_get_enum (value));
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_numeric_sorter_get_property (GObject *object,
guint prop_id,
GValue *value,
GParamSpec *pspec)
{
GtkNumericSorter *self = GTK_NUMERIC_SORTER (object);
switch (prop_id)
{
case PROP_EXPRESSION:
gtk_value_set_expression (value, self->expression);
break;
case PROP_SORT_ORDER:
g_value_set_enum (value, self->sort_order);
break;
default:
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
break;
}
}
static void
gtk_numeric_sorter_dispose (GObject *object)
{
GtkNumericSorter *self = GTK_NUMERIC_SORTER (object);
g_clear_pointer (&self->expression, gtk_expression_unref);
G_OBJECT_CLASS (gtk_numeric_sorter_parent_class)->dispose (object);
}
static void
gtk_numeric_sorter_class_init (GtkNumericSorterClass *class)
{
GtkSorterClass *sorter_class = GTK_SORTER_CLASS (class);
GObjectClass *object_class = G_OBJECT_CLASS (class);
sorter_class->compare = gtk_numeric_sorter_compare;
sorter_class->get_order = gtk_numeric_sorter_get_order;
object_class->get_property = gtk_numeric_sorter_get_property;
object_class->set_property = gtk_numeric_sorter_set_property;
object_class->dispose = gtk_numeric_sorter_dispose;
/**
* GtkNumericSorter:expression: (type GtkExpression) (attributes org.gtk.Property.get=gtk_numeric_sorter_get_expression org.gtk.Property.set=gtk_numeric_sorter_set_expression)
*
* The expression to evaluate on items to get a number to compare with.
*/
properties[PROP_EXPRESSION] =
gtk_param_spec_expression ("expression", NULL, NULL,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
/**
* GtkNumericSorter:sort-order: (attributes org.gtk.Property.get=gtk_numeric_sorter_get_sort_order org.gtk.Property.set=gtk_numeric_sorter_set_sort_order)
*
* Whether the sorter will sort smaller numbers first.
*/
properties[PROP_SORT_ORDER] =
g_param_spec_enum ("sort-order", NULL, NULL,
GTK_TYPE_SORT_TYPE,
GTK_SORT_ASCENDING,
G_PARAM_READWRITE | G_PARAM_STATIC_STRINGS | G_PARAM_EXPLICIT_NOTIFY);
g_object_class_install_properties (object_class, NUM_PROPERTIES, properties);
}
static void
gtk_numeric_sorter_init (GtkNumericSorter *self)
{
self->sort_order = GTK_SORT_ASCENDING;
gtk_sorter_changed_with_keys (GTK_SORTER (self),
GTK_SORTER_CHANGE_DIFFERENT,
gtk_numeric_sort_keys_new (self));
}
/**
* gtk_numeric_sorter_new:
* @expression: (transfer full) (nullable): The expression to evaluate
*
* Creates a new numeric sorter using the given @expression.
*
* Smaller numbers will be sorted first. You can call
* [method@Gtk.NumericSorter.set_sort_order] to change this.
*
* Returns: a new `GtkNumericSorter`
*/
GtkNumericSorter *
gtk_numeric_sorter_new (GtkExpression *expression)
{
GtkNumericSorter *result;
result = g_object_new (GTK_TYPE_NUMERIC_SORTER,
"expression", expression,
NULL);
g_clear_pointer (&expression, gtk_expression_unref);
return result;
}
/**
* gtk_numeric_sorter_get_expression: (attributes org.gtk.Method.get_property=expression)
* @self: a `GtkNumericSorter`
*
* Gets the expression that is evaluated to obtain numbers from items.
*
* Returns: (transfer none) (nullable): a `GtkExpression`
*/
GtkExpression *
gtk_numeric_sorter_get_expression (GtkNumericSorter *self)
{
g_return_val_if_fail (GTK_IS_NUMERIC_SORTER (self), NULL);
return self->expression;
}
/**
* gtk_numeric_sorter_set_expression: (attributes org.gtk.Method.set_property=expression)
* @self: a `GtkNumericSorter`
* @expression: (nullable) (transfer none): a `GtkExpression`
*
* Sets the expression that is evaluated to obtain numbers from items.
*
* Unless an expression is set on @self, the sorter will always
* compare items as invalid.
*
* The expression must have a return type that can be compared
* numerically, such as %G_TYPE_INT or %G_TYPE_DOUBLE.
*/
void
gtk_numeric_sorter_set_expression (GtkNumericSorter *self,
GtkExpression *expression)
{
g_return_if_fail (GTK_IS_NUMERIC_SORTER (self));
if (self->expression == expression)
return;
g_clear_pointer (&self->expression, gtk_expression_unref);
if (expression)
self->expression = gtk_expression_ref (expression);
gtk_sorter_changed_with_keys (GTK_SORTER (self),
GTK_SORTER_CHANGE_DIFFERENT,
gtk_numeric_sort_keys_new (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_EXPRESSION]);
}
/**
* gtk_numeric_sorter_set_sort_order: (attributes org.gtk.Method.set_property=sort-order)
* @self: a `GtkNumericSorter`
* @sort_order: whether to sort smaller numbers first
*
* Sets whether to sort smaller numbers before larger ones.
*/
void
gtk_numeric_sorter_set_sort_order (GtkNumericSorter *self,
GtkSortType sort_order)
{
g_return_if_fail (GTK_IS_NUMERIC_SORTER (self));
if (self->sort_order == sort_order)
return;
self->sort_order = sort_order;
gtk_sorter_changed_with_keys (GTK_SORTER (self),
GTK_SORTER_CHANGE_INVERTED,
gtk_numeric_sort_keys_new (self));
g_object_notify_by_pspec (G_OBJECT (self), properties[PROP_SORT_ORDER]);
}
/**
* gtk_numeric_sorter_get_sort_order: (attributes org.gtk.Method.get_property=sort-order)
* @self: a `GtkNumericSorter`
*
* Gets whether this sorter will sort smaller numbers first.
*
* Returns: the order of the numbers
*/
GtkSortType
gtk_numeric_sorter_get_sort_order (GtkNumericSorter *self)
{
g_return_val_if_fail (GTK_IS_NUMERIC_SORTER (self), GTK_SORT_ASCENDING);
return self->sort_order;
}