forked from AuroraMiddleware/gtk
01bc563147
Thu Aug 26 22:44:12 2004 Matthias Clasen <maclas@gmx.de> Provide information about how an adjustment change in a range widget happened. Add a "slider-moved" signal which reports how a user is interacting with the range, whether they are clicking on a stepper or the trough, or dragging the slider. (#133263, Thomas Fitzsimmons) * gtk/gtkmarshalers.list: Add signal type BOOLEAN:ENUM,DOUBLE. * gtk/gtkrange.c (gtk_range_class_init): Add "change-value" signal. (gtk_range_internal_set_value): Rename to gtk_range_real_change_value. Add GtkScrollType parameter. Emit the change-value signal when the range's value changes. (update_slider_position, gtk_range_scroll_event, step_back, step_forward, page_back, page_forward, scroll_begin, scroll_end): Change gtk_range_internal_set_value to gtk_range_real_change_value. * gtk/gtkrange.h (struct _GtkRangeClass): Declare change_value function.
164 lines
5.4 KiB
C
164 lines
5.4 KiB
C
/* GTK - The GIMP Toolkit
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* Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
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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 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, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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/*
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* Modified by the GTK+ Team and others 1997-2000. See the AUTHORS
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* file for a list of people on the GTK+ Team. See the ChangeLog
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* files for a list of changes. These files are distributed with
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* GTK+ at ftp://ftp.gtk.org/pub/gtk/.
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*/
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#ifndef __GTK_RANGE_H__
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#define __GTK_RANGE_H__
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#include <gdk/gdk.h>
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#include <gtk/gtkadjustment.h>
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#include <gtk/gtkwidget.h>
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#ifdef __cplusplus
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extern "C" {
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#endif /* __cplusplus */
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#define GTK_TYPE_RANGE (gtk_range_get_type ())
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#define GTK_RANGE(obj) (G_TYPE_CHECK_INSTANCE_CAST ((obj), GTK_TYPE_RANGE, GtkRange))
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#define GTK_RANGE_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST ((klass), GTK_TYPE_RANGE, GtkRangeClass))
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#define GTK_IS_RANGE(obj) (G_TYPE_CHECK_INSTANCE_TYPE ((obj), GTK_TYPE_RANGE))
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#define GTK_IS_RANGE_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), GTK_TYPE_RANGE))
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#define GTK_RANGE_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS ((obj), GTK_TYPE_RANGE, GtkRangeClass))
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/* These two are private/opaque types, ignore */
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typedef struct _GtkRangeLayout GtkRangeLayout;
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typedef struct _GtkRangeStepTimer GtkRangeStepTimer;
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typedef struct _GtkRange GtkRange;
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typedef struct _GtkRangeClass GtkRangeClass;
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struct _GtkRange
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{
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GtkWidget widget;
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GtkAdjustment *adjustment;
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GtkUpdateType update_policy;
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guint inverted : 1;
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/*< protected >*/
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guint flippable : 1;
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/* Steppers are: < > ---- < >
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* a b c d
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*/
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guint has_stepper_a : 1;
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guint has_stepper_b : 1;
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guint has_stepper_c : 1;
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guint has_stepper_d : 1;
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guint need_recalc : 1;
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guint slider_size_fixed : 1;
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gint min_slider_size;
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GtkOrientation orientation;
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/* Area of entire stepper + trough assembly in widget->window coords */
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GdkRectangle range_rect;
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/* Slider range along the long dimension, in widget->window coords */
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gint slider_start, slider_end;
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/* Round off value to this many digits, -1 for no rounding */
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gint round_digits;
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/*< private >*/
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guint trough_click_forward : 1; /* trough click was on the forward side of slider */
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guint update_pending : 1; /* need to emit value_changed */
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GtkRangeLayout *layout;
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GtkRangeStepTimer *timer;
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gint slide_initial_slider_position;
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gint slide_initial_coordinate;
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guint update_timeout_id;
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GdkWindow *event_window;
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};
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struct _GtkRangeClass
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{
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GtkWidgetClass parent_class;
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/* what detail to pass to GTK drawing functions */
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gchar *slider_detail;
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gchar *stepper_detail;
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void (* value_changed) (GtkRange *range);
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void (* adjust_bounds) (GtkRange *range,
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gdouble new_value);
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/* action signals for keybindings */
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void (* move_slider) (GtkRange *range,
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GtkScrollType scroll);
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/* Virtual functions */
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void (* get_range_border) (GtkRange *range,
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GtkBorder *border_);
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gboolean (* change_value) (GtkRange *range,
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GtkScrollType scroll,
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gdouble new_value);
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/* Padding for future expansion */
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void (*_gtk_reserved1) (void);
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void (*_gtk_reserved2) (void);
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void (*_gtk_reserved3) (void);
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};
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GType gtk_range_get_type (void) G_GNUC_CONST;
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void gtk_range_set_update_policy (GtkRange *range,
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GtkUpdateType policy);
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GtkUpdateType gtk_range_get_update_policy (GtkRange *range);
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void gtk_range_set_adjustment (GtkRange *range,
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GtkAdjustment *adjustment);
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GtkAdjustment* gtk_range_get_adjustment (GtkRange *range);
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void gtk_range_set_inverted (GtkRange *range,
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gboolean setting);
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gboolean gtk_range_get_inverted (GtkRange *range);
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void gtk_range_set_increments (GtkRange *range,
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gdouble step,
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gdouble page);
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void gtk_range_set_range (GtkRange *range,
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gdouble min,
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gdouble max);
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void gtk_range_set_value (GtkRange *range,
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gdouble value);
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gdouble gtk_range_get_value (GtkRange *range);
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gdouble _gtk_range_get_wheel_delta (GtkRange *range,
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GdkScrollDirection direction);
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif /* __GTK_RANGE_H__ */
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