d928ed7252
GimpSpinButton is a drop-in replacement for (and a subclass of) GtkSpinButton. Unlike GtkSpinButton, it avoids updating the adjustment value when losing focus, unless the entry text has changed. This prevents accidental loss of precision, when the adjustment value can't be accurately displayed in the entry. Note that libgimpwidgets already defines a (deprecated) gimp_spin_button_new() function. This commit stays compatible with the old function, by defining GimpSpinButton's _new() function as gimp_spin_button_new_(), and defining a variadic gimp_spin_button_new() macro, which expands to either the old or the new function, based on the number of arguments, so that either function can be used transparently as gimp_spin_button_new(). This is all gone in master.
91 lines
3.4 KiB
C
91 lines
3.4 KiB
C
/* LIBGIMP - The GIMP Library
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* Copyright (C) 1995-1997 Peter Mattis and Spencer Kimball
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*
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* gimpspinbutton.h
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* Copyright (C) 2018 Ell
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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 (__GIMP_WIDGETS_H_INSIDE__) && !defined (GIMP_WIDGETS_COMPILATION)
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#error "Only <libgimpwidgets/gimpwidgets.h> can be included directly."
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#endif
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#ifndef __GIMP_SPIN_BUTTON_H__
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#define __GIMP_SPIN_BUTTON_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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#define GIMP_TYPE_SPIN_BUTTON (gimp_spin_button_get_type ())
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#define GIMP_SPIN_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GIMP_TYPE_SPIN_BUTTON, GimpSpinButton))
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#define GIMP_SPIN_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GIMP_TYPE_SPIN_BUTTON, GimpSpinButtonClass))
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#define GIMP_IS_SPIN_BUTTON(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GIMP_TYPE_SPIN_BUTTON))
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#define GIMP_IS_SPIN_BUTTON_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GIMP_TYPE_SPIN_BUTTON))
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#define GIMP_SPIN_BUTTON_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GIMP_TYPE_SPIN_BUTTON, GimpSpinButtonClass))
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typedef struct _GimpSpinButtonPrivate GimpSpinButtonPrivate;
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typedef struct _GimpSpinButtonClass GimpSpinButtonClass;
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struct _GimpSpinButton
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{
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GtkSpinButton parent_instance;
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GimpSpinButtonPrivate *priv;
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};
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struct _GimpSpinButtonClass
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{
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GtkSpinButtonClass parent_class;
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/* Padding for future expansion */
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void (* _gimp_reserved1) (void);
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void (* _gimp_reserved2) (void);
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void (* _gimp_reserved3) (void);
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void (* _gimp_reserved4) (void);
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};
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GType gimp_spin_button_get_type (void) G_GNUC_CONST;
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GtkWidget * gimp_spin_button_new_ (GtkAdjustment *adjustment,
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gdouble climb_rate,
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guint digits);
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GtkWidget * gimp_spin_button_new_with_range (gdouble min,
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gdouble max,
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gdouble step);
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/* compatibility magic, expanding to either the old (deprecated)
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* gimp_spin_button_new(), defined in gimpwidgets.h, or the new
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* gimp_spin_button_new(), defined here, based on the number of arguments.
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*/
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#define gimp_spin_button_new(...) gimp_spin_button_new_I (__VA_ARGS__, \
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9, , , , , , 3)
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#define gimp_spin_button_new_I(_1, _2, _3, _4, _5, _6, _7, _8, _9, n, ...) \
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gimp_spin_button_new_I_##n (_1, _2, _3, _4, _5, _6, _7, _8, _9)
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#define gimp_spin_button_new_I_3(_1, _2, _3, _4, _5, _6, _7, _8, _9) \
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gimp_spin_button_new_ (_1, _2, _3)
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#define gimp_spin_button_new_I_9(_1, _2, _3, _4, _5, _6, _7, _8, _9) \
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gimp_spin_button_new (_1, _2, _3, _4, _5, _6, _7, _8, _9)
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G_END_DECLS
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#endif /* __GIMP_SPIN_BUTTON_H__ */
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