121 lines
4.6 KiB
C
121 lines
4.6 KiB
C
/* LIBPIKA - The PIKA Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* pikaunit.h
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* Copyright (C) 1999-2003 Michael Natterer <mitch@gimp.org>
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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 3 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
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* <https://www.gnu.org/licenses/>.
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*/
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#if !defined (__PIKA_BASE_H_INSIDE__) && !defined (PIKA_BASE_COMPILATION)
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#error "Only <libpikabase/pikabase.h> can be included directly."
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#endif
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#ifndef __PIKA_UNIT_H__
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#define __PIKA_UNIT_H__
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G_BEGIN_DECLS
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/* For information look into the C source or the html documentation */
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/**
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* PIKA_TYPE_UNIT:
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*
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* #PIKA_TYPE_UNIT is a #GType derived from #G_TYPE_INT.
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**/
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#define PIKA_TYPE_UNIT (pika_unit_get_type ())
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#define PIKA_VALUE_HOLDS_UNIT(value) (G_TYPE_CHECK_VALUE_TYPE ((value), PIKA_TYPE_UNIT))
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GType pika_unit_get_type (void) G_GNUC_CONST;
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/*
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* PIKA_TYPE_PARAM_UNIT
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*/
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#define PIKA_TYPE_PARAM_UNIT (pika_param_unit_get_type ())
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#define PIKA_PARAM_SPEC_UNIT(pspec) (G_TYPE_CHECK_INSTANCE_CAST ((pspec), PIKA_TYPE_PARAM_UNIT, PikaParamSpecUnit))
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#define PIKA_IS_PARAM_SPEC_UNIT(pspec) (G_TYPE_CHECK_INSTANCE_TYPE ((pspec), PIKA_TYPE_PARAM_UNIT))
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typedef struct _PikaParamSpecUnit PikaParamSpecUnit;
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struct _PikaParamSpecUnit
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{
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GParamSpecInt parent_instance;
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gboolean allow_percent;
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};
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GType pika_param_unit_get_type (void) G_GNUC_CONST;
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GParamSpec * pika_param_spec_unit (const gchar *name,
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const gchar *nick,
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const gchar *blurb,
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gboolean allow_pixels,
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gboolean allow_percent,
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PikaUnit default_value,
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GParamFlags flags);
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gint pika_unit_get_number_of_units (void);
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gint pika_unit_get_number_of_built_in_units (void) G_GNUC_CONST;
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PikaUnit pika_unit_new (gchar *identifier,
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gdouble factor,
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gint digits,
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gchar *symbol,
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gchar *abbreviation,
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gchar *singular,
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gchar *plural);
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gboolean pika_unit_get_deletion_flag (PikaUnit unit);
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void pika_unit_set_deletion_flag (PikaUnit unit,
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gboolean deletion_flag);
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gdouble pika_unit_get_factor (PikaUnit unit);
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gint pika_unit_get_digits (PikaUnit unit);
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gint pika_unit_get_scaled_digits (PikaUnit unit,
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gdouble resolution);
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const gchar * pika_unit_get_identifier (PikaUnit unit);
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const gchar * pika_unit_get_symbol (PikaUnit unit);
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const gchar * pika_unit_get_abbreviation (PikaUnit unit);
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const gchar * pika_unit_get_singular (PikaUnit unit);
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const gchar * pika_unit_get_plural (PikaUnit unit);
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gchar * pika_unit_format_string (const gchar *format,
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PikaUnit unit);
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gdouble pika_pixels_to_units (gdouble pixels,
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PikaUnit unit,
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gdouble resolution);
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gdouble pika_units_to_pixels (gdouble value,
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PikaUnit unit,
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gdouble resolution);
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gdouble pika_units_to_points (gdouble value,
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PikaUnit unit,
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gdouble resolution);
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gboolean pika_unit_is_metric (PikaUnit unit);
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G_END_DECLS
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#endif /* __PIKA_UNIT_H__ */
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