688 lines
22 KiB
C
688 lines
22 KiB
C
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/*
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* Copyright © 2019 Matthias Clasen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see <http://www.gnu.org/licenses/>.
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*
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* Authors: Matthias Clasen <mclasen@redhat.com>
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*/
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#include "config.h"
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#include "gtknumericsorter.h"
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#include "gtksorterprivate.h"
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#include "gtktypebuiltins.h"
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#include <math.h>
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/**
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* GtkNumericSorter:
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*
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* `GtkNumericSorter` is a `GtkSorter` that compares numbers.
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*
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* To obtain the numbers to compare, this sorter evaluates a
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* [class@Gtk.Expression].
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*/
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struct _GtkNumericSorter
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{
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GtkSorter parent_instance;
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GtkSortType sort_order;
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GtkExpression *expression;
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};
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enum {
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PROP_0,
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PROP_EXPRESSION,
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PROP_SORT_ORDER,
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NUM_PROPERTIES
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};
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G_DEFINE_TYPE (GtkNumericSorter, gtk_numeric_sorter, GTK_TYPE_SORTER)
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static GParamSpec *properties[NUM_PROPERTIES] = { NULL, };
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#define DO_COMPARISON(_result, _type, _getter, _order) G_STMT_START{ \
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_type num1 = _getter (&value1); \
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_type num2 = _getter (&value2); \
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\
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if (num1 < num2) \
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_result = _order == GTK_SORT_ASCENDING ? GTK_ORDERING_SMALLER : GTK_ORDERING_LARGER; \
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else if (num1 > num2) \
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_result = _order == GTK_SORT_ASCENDING ? GTK_ORDERING_LARGER : GTK_ORDERING_SMALLER; \
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else \
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_result = GTK_ORDERING_EQUAL; \
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}G_STMT_END
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typedef struct _GtkNumericSortKeys GtkNumericSortKeys;
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struct _GtkNumericSortKeys
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{
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GtkSortKeys keys;
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GtkExpression *expression;
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};
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static void
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gtk_numeric_sort_keys_free (GtkSortKeys *keys)
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{
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GtkNumericSortKeys *self = (GtkNumericSortKeys *) keys;
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gtk_expression_unref (self->expression);
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g_free (self);
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}
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#define COMPARE_FUNC(type, name, _a, _b) \
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static int \
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gtk_ ## type ## _sort_keys_compare_ ## name (gconstpointer a, \
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gconstpointer b, \
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gpointer unused) \
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{ \
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type num1 = *(type *) _a; \
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type num2 = *(type *) _b; \
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\
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if (num1 < num2) \
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return GTK_ORDERING_SMALLER; \
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else if (num1 > num2) \
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return GTK_ORDERING_LARGER; \
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else \
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return GTK_ORDERING_EQUAL; \
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}
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#define COMPARE_FUNCS(type) \
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COMPARE_FUNC(type, ascending, a, b) \
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COMPARE_FUNC(type, descending, b, a)
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#define FLOAT_COMPARE_FUNC(type, name, _a, _b) \
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static int \
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gtk_ ## type ## _sort_keys_compare_ ## name (gconstpointer a, \
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gconstpointer b, \
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gpointer unused) \
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{ \
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type num1 = *(type *) _a; \
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type num2 = *(type *) _b; \
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\
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if (isnan (num1) && isnan (num2)) \
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return GTK_ORDERING_EQUAL; \
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else if (isnan (num1)) \
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return GTK_ORDERING_LARGER; \
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else if (isnan (num2)) \
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return GTK_ORDERING_SMALLER; \
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else if (num1 < num2) \
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return GTK_ORDERING_SMALLER; \
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else if (num1 > num2) \
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return GTK_ORDERING_LARGER; \
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else \
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return GTK_ORDERING_EQUAL; \
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}
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#define FLOAT_COMPARE_FUNCS(type) \
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FLOAT_COMPARE_FUNC(type, ascending, a, b) \
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FLOAT_COMPARE_FUNC(type, descending, b, a)
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COMPARE_FUNCS(char)
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COMPARE_FUNCS(guchar)
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COMPARE_FUNCS(int)
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COMPARE_FUNCS(guint)
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FLOAT_COMPARE_FUNCS(float)
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FLOAT_COMPARE_FUNCS(double)
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COMPARE_FUNCS(long)
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COMPARE_FUNCS(gulong)
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COMPARE_FUNCS(gint64)
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COMPARE_FUNCS(guint64)
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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#define NUMERIC_SORT_KEYS(TYPE, key_type, type, default_value) \
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static void \
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gtk_ ## type ## _sort_keys_init_key (GtkSortKeys *keys, \
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gpointer item, \
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gpointer key_memory) \
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{ \
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GtkNumericSortKeys *self = (GtkNumericSortKeys *) keys; \
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key_type *key = (key_type *) key_memory; \
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GValue value = G_VALUE_INIT; \
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\
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if (gtk_expression_evaluate (self->expression, item, &value)) \
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*key = g_value_get_ ## type (&value); \
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else \
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*key = default_value; \
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\
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g_value_unset (&value); \
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} \
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\
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static gboolean \
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gtk_ ## type ## _sort_keys_is_compatible (GtkSortKeys *keys, \
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GtkSortKeys *other); \
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\
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static const GtkSortKeysClass GTK_ASCENDING_ ## TYPE ## _SORT_KEYS_CLASS = \
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{ \
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gtk_numeric_sort_keys_free, \
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gtk_ ## key_type ## _sort_keys_compare_ascending, \
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gtk_ ## type ## _sort_keys_is_compatible, \
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gtk_ ## type ## _sort_keys_init_key, \
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NULL \
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}; \
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\
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static const GtkSortKeysClass GTK_DESCENDING_ ## TYPE ## _SORT_KEYS_CLASS = \
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{ \
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gtk_numeric_sort_keys_free, \
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gtk_ ## key_type ## _sort_keys_compare_descending, \
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gtk_ ## type ## _sort_keys_is_compatible, \
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gtk_ ## type ## _sort_keys_init_key, \
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NULL \
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}; \
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\
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static gboolean \
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gtk_ ## type ## _sort_keys_is_compatible (GtkSortKeys *keys, \
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GtkSortKeys *other) \
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{ \
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GtkNumericSorter *self = (GtkNumericSorter *) keys; \
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GtkNumericSorter *compare = (GtkNumericSorter *) other; \
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\
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if (other->klass != >K_ASCENDING_ ## TYPE ## _SORT_KEYS_CLASS && \
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other->klass != >K_DESCENDING_ ## TYPE ## _SORT_KEYS_CLASS) \
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return FALSE; \
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\
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return self->expression == compare->expression; \
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}
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NUMERIC_SORT_KEYS(BOOLEAN, char, boolean, FALSE)
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NUMERIC_SORT_KEYS(CHAR, char, char, G_MININT8)
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NUMERIC_SORT_KEYS(UCHAR, guchar, uchar, G_MAXUINT8)
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NUMERIC_SORT_KEYS(INT, int, int, G_MININT)
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NUMERIC_SORT_KEYS(UINT, guint, uint, G_MAXUINT)
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NUMERIC_SORT_KEYS(FLOAT, float, float, NAN)
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NUMERIC_SORT_KEYS(DOUBLE, double, double, NAN)
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NUMERIC_SORT_KEYS(LONG, long, long, G_MINLONG)
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NUMERIC_SORT_KEYS(ULONG, gulong, ulong, G_MAXLONG)
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NUMERIC_SORT_KEYS(INT64, gint64, int64, G_MININT64)
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NUMERIC_SORT_KEYS(UINT64, guint64, uint64, G_MAXUINT64)
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G_GNUC_END_IGNORE_DEPRECATIONS
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static GtkSortKeys *
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gtk_numeric_sort_keys_new (GtkNumericSorter *self)
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{
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GtkNumericSortKeys *result;
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if (self->expression == NULL)
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return gtk_sort_keys_new_equal ();
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switch (gtk_expression_get_value_type (self->expression))
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{
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case G_TYPE_BOOLEAN:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_BOOLEAN_SORT_KEYS_CLASS
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: >K_DESCENDING_BOOLEAN_SORT_KEYS_CLASS,
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sizeof (char),
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G_ALIGNOF (char));
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break;
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case G_TYPE_CHAR:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_CHAR_SORT_KEYS_CLASS
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: >K_DESCENDING_CHAR_SORT_KEYS_CLASS,
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sizeof (char),
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G_ALIGNOF (char));
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break;
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case G_TYPE_UCHAR:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_UCHAR_SORT_KEYS_CLASS
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: >K_DESCENDING_UCHAR_SORT_KEYS_CLASS,
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sizeof (guchar),
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G_ALIGNOF (guchar));
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break;
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case G_TYPE_INT:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_INT_SORT_KEYS_CLASS
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: >K_DESCENDING_INT_SORT_KEYS_CLASS,
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sizeof (int),
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G_ALIGNOF (int));
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break;
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case G_TYPE_UINT:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_UINT_SORT_KEYS_CLASS
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: >K_DESCENDING_UINT_SORT_KEYS_CLASS,
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sizeof (guint),
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G_ALIGNOF (guint));
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break;
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case G_TYPE_FLOAT:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_FLOAT_SORT_KEYS_CLASS
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: >K_DESCENDING_FLOAT_SORT_KEYS_CLASS,
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sizeof (float),
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G_ALIGNOF (float));
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break;
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case G_TYPE_DOUBLE:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_DOUBLE_SORT_KEYS_CLASS
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: >K_DESCENDING_DOUBLE_SORT_KEYS_CLASS,
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sizeof (double),
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G_ALIGNOF (double));
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break;
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case G_TYPE_LONG:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_LONG_SORT_KEYS_CLASS
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: >K_DESCENDING_LONG_SORT_KEYS_CLASS,
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sizeof (long),
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G_ALIGNOF (long));
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break;
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case G_TYPE_ULONG:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_ULONG_SORT_KEYS_CLASS
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: >K_DESCENDING_ULONG_SORT_KEYS_CLASS,
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sizeof (gulong),
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G_ALIGNOF (gulong));
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break;
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case G_TYPE_INT64:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_INT64_SORT_KEYS_CLASS
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: >K_DESCENDING_INT64_SORT_KEYS_CLASS,
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sizeof (gint64),
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G_ALIGNOF (gint64));
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break;
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case G_TYPE_UINT64:
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result = gtk_sort_keys_new (GtkNumericSortKeys,
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self->sort_order == GTK_SORT_ASCENDING
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? >K_ASCENDING_UINT64_SORT_KEYS_CLASS
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: >K_DESCENDING_UINT64_SORT_KEYS_CLASS,
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sizeof (guint64),
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G_ALIGNOF (guint64));
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break;
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default:
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g_critical ("Invalid value type %s for expression\n", g_type_name (gtk_expression_get_value_type (self->expression)));
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return gtk_sort_keys_new_equal ();
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}
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result->expression = gtk_expression_ref (self->expression);
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return (GtkSortKeys *) result;
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}
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G_GNUC_BEGIN_IGNORE_DEPRECATIONS
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static GtkOrdering
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gtk_numeric_sorter_compare (GtkSorter *sorter,
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gpointer item1,
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gpointer item2)
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{
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GtkNumericSorter *self = GTK_NUMERIC_SORTER (sorter);
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GValue value1 = G_VALUE_INIT;
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GValue value2 = G_VALUE_INIT;
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gboolean res1, res2;
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GtkOrdering result;
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if (self->expression == NULL)
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return GTK_ORDERING_EQUAL;
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res1 = gtk_expression_evaluate (self->expression, item1, &value1);
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res2 = gtk_expression_evaluate (self->expression, item2, &value2);
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/* 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;
|
||
|
|
}
|