forked from AuroraMiddleware/gtk
3836 lines
115 KiB
C
3836 lines
115 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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* Copyright (C) 2001 Red Hat, Inc.
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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 1997-2004. 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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#include "config.h"
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#include <stdio.h>
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#include <math.h>
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#include <gdk/gdkkeysyms.h>
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#include "gtkmain.h"
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#include "gtkmarshalers.h"
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#include "gtkorientable.h"
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#include "gtkrange.h"
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#include "gtkscrollbar.h"
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#include "gtkprivate.h"
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#include "gtkintl.h"
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#include "gtkalias.h"
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#define SCROLL_DELAY_FACTOR 5 /* Scroll repeat multiplier */
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#define UPDATE_DELAY 300 /* Delay for queued update */
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enum {
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PROP_0,
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PROP_ORIENTATION,
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PROP_UPDATE_POLICY,
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PROP_ADJUSTMENT,
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PROP_INVERTED,
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PROP_LOWER_STEPPER_SENSITIVITY,
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PROP_UPPER_STEPPER_SENSITIVITY,
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PROP_SHOW_FILL_LEVEL,
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PROP_RESTRICT_TO_FILL_LEVEL,
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PROP_FILL_LEVEL
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};
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enum {
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VALUE_CHANGED,
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ADJUST_BOUNDS,
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MOVE_SLIDER,
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CHANGE_VALUE,
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LAST_SIGNAL
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};
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typedef enum {
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MOUSE_OUTSIDE,
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MOUSE_STEPPER_A,
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MOUSE_STEPPER_B,
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MOUSE_STEPPER_C,
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MOUSE_STEPPER_D,
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MOUSE_TROUGH,
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MOUSE_SLIDER,
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MOUSE_WIDGET /* inside widget but not in any of the above GUI elements */
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} MouseLocation;
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#define GTK_RANGE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), GTK_TYPE_RANGE, GtkRangeLayout))
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struct _GtkRangeLayout
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{
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/* These are in widget->window coordinates */
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GdkRectangle stepper_a;
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GdkRectangle stepper_b;
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GdkRectangle stepper_c;
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GdkRectangle stepper_d;
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/* The trough rectangle is the area the thumb can slide in, not the
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* entire range_rect
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*/
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GdkRectangle trough;
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GdkRectangle slider;
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/* Layout-related state */
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MouseLocation mouse_location;
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/* last mouse coords we got, or -1 if mouse is outside the range */
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gint mouse_x;
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gint mouse_y;
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/* "grabbed" mouse location, OUTSIDE for no grab */
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MouseLocation grab_location;
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guint grab_button : 8; /* 0 if none */
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/* Stepper sensitivity */
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guint lower_sensitive : 1;
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guint upper_sensitive : 1;
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/* Fill level */
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guint show_fill_level : 1;
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guint restrict_to_fill_level : 1;
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GtkSensitivityType lower_sensitivity;
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GtkSensitivityType upper_sensitivity;
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guint repaint_id;
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gdouble fill_level;
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GQuark slider_detail_quark;
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GQuark stepper_detail_quark;
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gdouble *marks;
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gint *mark_pos;
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gint n_marks;
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gboolean recalc_marks;
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};
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static void gtk_range_set_property (GObject *object,
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guint prop_id,
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const GValue *value,
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GParamSpec *pspec);
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static void gtk_range_get_property (GObject *object,
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guint prop_id,
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GValue *value,
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GParamSpec *pspec);
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static void gtk_range_destroy (GtkObject *object);
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static void gtk_range_size_request (GtkWidget *widget,
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GtkRequisition *requisition);
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static void gtk_range_size_allocate (GtkWidget *widget,
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GtkAllocation *allocation);
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static void gtk_range_realize (GtkWidget *widget);
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static void gtk_range_unrealize (GtkWidget *widget);
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static void gtk_range_map (GtkWidget *widget);
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static void gtk_range_unmap (GtkWidget *widget);
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static gboolean gtk_range_expose (GtkWidget *widget,
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GdkEventExpose *event);
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static gboolean gtk_range_button_press (GtkWidget *widget,
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GdkEventButton *event);
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static gboolean gtk_range_button_release (GtkWidget *widget,
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GdkEventButton *event);
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static gboolean gtk_range_motion_notify (GtkWidget *widget,
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GdkEventMotion *event);
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static gboolean gtk_range_enter_notify (GtkWidget *widget,
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GdkEventCrossing *event);
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static gboolean gtk_range_leave_notify (GtkWidget *widget,
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GdkEventCrossing *event);
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static gboolean gtk_range_grab_broken (GtkWidget *widget,
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GdkEventGrabBroken *event);
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static void gtk_range_grab_notify (GtkWidget *widget,
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gboolean was_grabbed);
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static void gtk_range_state_changed (GtkWidget *widget,
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GtkStateType previous_state);
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static gboolean gtk_range_scroll_event (GtkWidget *widget,
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GdkEventScroll *event);
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static void gtk_range_style_set (GtkWidget *widget,
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GtkStyle *previous_style);
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static void update_slider_position (GtkRange *range,
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gint mouse_x,
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gint mouse_y);
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static void stop_scrolling (GtkRange *range);
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/* Range methods */
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static void gtk_range_move_slider (GtkRange *range,
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GtkScrollType scroll);
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/* Internals */
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static gboolean gtk_range_scroll (GtkRange *range,
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GtkScrollType scroll);
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static gboolean gtk_range_update_mouse_location (GtkRange *range);
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static void gtk_range_calc_layout (GtkRange *range,
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gdouble adjustment_value);
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static void gtk_range_calc_marks (GtkRange *range);
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static void gtk_range_get_props (GtkRange *range,
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gint *slider_width,
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gint *stepper_size,
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gint *focus_width,
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gint *trough_border,
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gint *stepper_spacing,
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gboolean *trough_under_steppers,
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gint *arrow_displacement_x,
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gint *arrow_displacement_y);
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static void gtk_range_calc_request (GtkRange *range,
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gint slider_width,
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gint stepper_size,
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gint focus_width,
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gint trough_border,
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gint stepper_spacing,
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GdkRectangle *range_rect,
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GtkBorder *border,
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gint *n_steppers_p,
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gboolean *has_steppers_ab,
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gboolean *has_steppers_cd,
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gint *slider_length_p);
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static void gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
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gpointer data);
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static void gtk_range_adjustment_changed (GtkAdjustment *adjustment,
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gpointer data);
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static void gtk_range_add_step_timer (GtkRange *range,
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GtkScrollType step);
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static void gtk_range_remove_step_timer (GtkRange *range);
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static void gtk_range_reset_update_timer (GtkRange *range);
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static void gtk_range_remove_update_timer (GtkRange *range);
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static GdkRectangle* get_area (GtkRange *range,
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MouseLocation location);
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static gboolean gtk_range_real_change_value (GtkRange *range,
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GtkScrollType scroll,
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gdouble value);
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static void gtk_range_update_value (GtkRange *range);
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static gboolean gtk_range_key_press (GtkWidget *range,
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GdkEventKey *event);
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G_DEFINE_ABSTRACT_TYPE_WITH_CODE (GtkRange, gtk_range, GTK_TYPE_WIDGET,
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G_IMPLEMENT_INTERFACE (GTK_TYPE_ORIENTABLE,
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NULL))
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static guint signals[LAST_SIGNAL];
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static void
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gtk_range_class_init (GtkRangeClass *class)
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{
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GObjectClass *gobject_class;
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GtkObjectClass *object_class;
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GtkWidgetClass *widget_class;
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gobject_class = G_OBJECT_CLASS (class);
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object_class = (GtkObjectClass*) class;
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widget_class = (GtkWidgetClass*) class;
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gobject_class->set_property = gtk_range_set_property;
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gobject_class->get_property = gtk_range_get_property;
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object_class->destroy = gtk_range_destroy;
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widget_class->size_request = gtk_range_size_request;
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widget_class->size_allocate = gtk_range_size_allocate;
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widget_class->realize = gtk_range_realize;
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widget_class->unrealize = gtk_range_unrealize;
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widget_class->map = gtk_range_map;
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widget_class->unmap = gtk_range_unmap;
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widget_class->expose_event = gtk_range_expose;
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widget_class->button_press_event = gtk_range_button_press;
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widget_class->button_release_event = gtk_range_button_release;
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widget_class->motion_notify_event = gtk_range_motion_notify;
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widget_class->scroll_event = gtk_range_scroll_event;
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widget_class->enter_notify_event = gtk_range_enter_notify;
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widget_class->leave_notify_event = gtk_range_leave_notify;
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widget_class->grab_broken_event = gtk_range_grab_broken;
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widget_class->grab_notify = gtk_range_grab_notify;
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widget_class->state_changed = gtk_range_state_changed;
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widget_class->style_set = gtk_range_style_set;
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widget_class->key_press_event = gtk_range_key_press;
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class->move_slider = gtk_range_move_slider;
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class->change_value = gtk_range_real_change_value;
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class->slider_detail = "slider";
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class->stepper_detail = "stepper";
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/**
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* GtkRange::value-changed:
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* @range: the #GtkRange
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*
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* Emitted when the range value changes.
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*/
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signals[VALUE_CHANGED] =
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g_signal_new (I_("value-changed"),
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkRangeClass, value_changed),
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NULL, NULL,
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_gtk_marshal_VOID__VOID,
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G_TYPE_NONE, 0);
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signals[ADJUST_BOUNDS] =
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g_signal_new (I_("adjust-bounds"),
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkRangeClass, adjust_bounds),
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NULL, NULL,
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_gtk_marshal_VOID__DOUBLE,
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G_TYPE_NONE, 1,
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G_TYPE_DOUBLE);
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/**
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* GtkRange::move-slider:
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* @range: the #GtkRange
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* @step: how to move the slider
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*
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* Virtual function that moves the slider. Used for keybindings.
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*/
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signals[MOVE_SLIDER] =
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g_signal_new (I_("move-slider"),
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST | G_SIGNAL_ACTION,
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G_STRUCT_OFFSET (GtkRangeClass, move_slider),
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NULL, NULL,
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_gtk_marshal_VOID__ENUM,
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G_TYPE_NONE, 1,
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GTK_TYPE_SCROLL_TYPE);
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/**
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* GtkRange::change-value:
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* @range: the range that received the signal
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* @scroll: the type of scroll action that was performed
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* @value: the new value resulting from the scroll action
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* @returns: %TRUE to prevent other handlers from being invoked for the
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* signal, %FALSE to propagate the signal further
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*
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* The ::change-value signal is emitted when a scroll action is
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* performed on a range. It allows an application to determine the
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* type of scroll event that occurred and the resultant new value.
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* The application can handle the event itself and return %TRUE to
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* prevent further processing. Or, by returning %FALSE, it can pass
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* the event to other handlers until the default GTK+ handler is
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* reached.
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*
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* The value parameter is unrounded. An application that overrides
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* the ::change-value signal is responsible for clamping the value to
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* the desired number of decimal digits; the default GTK+ handler
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* clamps the value based on @range->round_digits.
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*
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* It is not possible to use delayed update policies in an overridden
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* ::change-value handler.
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*
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* Since: 2.6
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*/
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signals[CHANGE_VALUE] =
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g_signal_new (I_("change-value"),
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G_TYPE_FROM_CLASS (gobject_class),
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G_SIGNAL_RUN_LAST,
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G_STRUCT_OFFSET (GtkRangeClass, change_value),
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_gtk_boolean_handled_accumulator, NULL,
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_gtk_marshal_BOOLEAN__ENUM_DOUBLE,
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G_TYPE_BOOLEAN, 2,
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GTK_TYPE_SCROLL_TYPE,
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G_TYPE_DOUBLE);
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g_object_class_override_property (gobject_class,
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PROP_ORIENTATION,
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"orientation");
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g_object_class_install_property (gobject_class,
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PROP_UPDATE_POLICY,
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g_param_spec_enum ("update-policy",
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P_("Update policy"),
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P_("How the range should be updated on the screen"),
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GTK_TYPE_UPDATE_TYPE,
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GTK_UPDATE_CONTINUOUS,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_ADJUSTMENT,
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g_param_spec_object ("adjustment",
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P_("Adjustment"),
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P_("The GtkAdjustment that contains the current value of this range object"),
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GTK_TYPE_ADJUSTMENT,
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GTK_PARAM_READWRITE | G_PARAM_CONSTRUCT));
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g_object_class_install_property (gobject_class,
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PROP_INVERTED,
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g_param_spec_boolean ("inverted",
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P_("Inverted"),
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P_("Invert direction slider moves to increase range value"),
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FALSE,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_LOWER_STEPPER_SENSITIVITY,
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g_param_spec_enum ("lower-stepper-sensitivity",
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P_("Lower stepper sensitivity"),
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P_("The sensitivity policy for the stepper that points to the adjustment's lower side"),
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GTK_TYPE_SENSITIVITY_TYPE,
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GTK_SENSITIVITY_AUTO,
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GTK_PARAM_READWRITE));
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g_object_class_install_property (gobject_class,
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PROP_UPPER_STEPPER_SENSITIVITY,
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g_param_spec_enum ("upper-stepper-sensitivity",
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P_("Upper stepper sensitivity"),
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P_("The sensitivity policy for the stepper that points to the adjustment's upper side"),
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GTK_TYPE_SENSITIVITY_TYPE,
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GTK_SENSITIVITY_AUTO,
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GTK_PARAM_READWRITE));
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/**
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* GtkRange:show-fill-level:
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*
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* The show-fill-level property controls whether fill level indicator
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* graphics are displayed on the trough. See
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* gtk_range_set_show_fill_level().
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*
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* Since: 2.12
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**/
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g_object_class_install_property (gobject_class,
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PROP_SHOW_FILL_LEVEL,
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g_param_spec_boolean ("show-fill-level",
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P_("Show Fill Level"),
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P_("Whether to display a fill level indicator graphics on trough."),
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FALSE,
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GTK_PARAM_READWRITE));
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/**
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* GtkRange:restrict-to-fill-level:
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*
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* The restrict-to-fill-level property controls whether slider
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* movement is restricted to an upper boundary set by the
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* fill level. See gtk_range_set_restrict_to_fill_level().
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*
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* Since: 2.12
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**/
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g_object_class_install_property (gobject_class,
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PROP_RESTRICT_TO_FILL_LEVEL,
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g_param_spec_boolean ("restrict-to-fill-level",
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P_("Restrict to Fill Level"),
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P_("Whether to restrict the upper boundary to the fill level."),
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TRUE,
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GTK_PARAM_READWRITE));
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/**
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* GtkRange:fill-level:
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*
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* The fill level (e.g. prebuffering of a network stream).
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* See gtk_range_set_fill_level().
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*
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* Since: 2.12
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**/
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g_object_class_install_property (gobject_class,
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PROP_FILL_LEVEL,
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g_param_spec_double ("fill-level",
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P_("Fill Level"),
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P_("The fill level."),
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-G_MAXDOUBLE,
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G_MAXDOUBLE,
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G_MAXDOUBLE,
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GTK_PARAM_READWRITE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("slider-width",
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P_("Slider Width"),
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P_("Width of scrollbar or scale thumb"),
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0,
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G_MAXINT,
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14,
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GTK_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("trough-border",
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P_("Trough Border"),
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P_("Spacing between thumb/steppers and outer trough bevel"),
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0,
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G_MAXINT,
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1,
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GTK_PARAM_READABLE));
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gtk_widget_class_install_style_property (widget_class,
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g_param_spec_int ("stepper-size",
|
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P_("Stepper Size"),
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P_("Length of step buttons at ends"),
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0,
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G_MAXINT,
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14,
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GTK_PARAM_READABLE));
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/**
|
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* GtkRange:stepper-spacing:
|
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*
|
|
* The spacing between the stepper buttons and thumb. Note that
|
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* setting this value to anything > 0 will automatically set the
|
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* trough-under-steppers style property to %TRUE as well. Also,
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* stepper-spacing won't have any effect if there are no steppers.
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*/
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_int ("stepper-spacing",
|
|
P_("Stepper Spacing"),
|
|
P_("Spacing between step buttons and thumb"),
|
|
0,
|
|
G_MAXINT,
|
|
0,
|
|
GTK_PARAM_READABLE));
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_int ("arrow-displacement-x",
|
|
P_("Arrow X Displacement"),
|
|
P_("How far in the x direction to move the arrow when the button is depressed"),
|
|
G_MININT,
|
|
G_MAXINT,
|
|
0,
|
|
GTK_PARAM_READABLE));
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_int ("arrow-displacement-y",
|
|
P_("Arrow Y Displacement"),
|
|
P_("How far in the y direction to move the arrow when the button is depressed"),
|
|
G_MININT,
|
|
G_MAXINT,
|
|
0,
|
|
GTK_PARAM_READABLE));
|
|
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_boolean ("activate-slider",
|
|
P_("Draw slider ACTIVE during drag"),
|
|
P_("With this option set to TRUE, sliders will be drawn ACTIVE and with shadow IN while they are dragged"),
|
|
FALSE,
|
|
GTK_PARAM_READABLE));
|
|
|
|
/**
|
|
* GtkRange:trough-side-details:
|
|
*
|
|
* When %TRUE, the parts of the trough on the two sides of the
|
|
* slider are drawn with different details.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_boolean ("trough-side-details",
|
|
P_("Trough Side Details"),
|
|
P_("When TRUE, the parts of the trough on the two sides of the slider are drawn with different details"),
|
|
FALSE,
|
|
GTK_PARAM_READABLE));
|
|
|
|
/**
|
|
* GtkRange:trough-under-steppers:
|
|
*
|
|
* Whether to draw the trough across the full length of the range or
|
|
* to exclude the steppers and their spacing. Note that setting the
|
|
* #GtkRange:stepper-spacing style property to any value > 0 will
|
|
* automatically enable trough-under-steppers too.
|
|
*
|
|
* Since: 2.10
|
|
*/
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_boolean ("trough-under-steppers",
|
|
P_("Trough Under Steppers"),
|
|
P_("Whether to draw trough for full length of range or exclude the steppers and spacing"),
|
|
TRUE,
|
|
GTK_PARAM_READABLE));
|
|
|
|
/**
|
|
* GtkRange:arrow-scaling:
|
|
*
|
|
* The arrow size proportion relative to the scroll button size.
|
|
*
|
|
* Since: 2.14
|
|
*/
|
|
gtk_widget_class_install_style_property (widget_class,
|
|
g_param_spec_float ("arrow-scaling",
|
|
P_("Arrow scaling"),
|
|
P_("Arrow scaling with regard to scroll button size"),
|
|
0.0, 1.0, 0.5,
|
|
GTK_PARAM_READABLE));
|
|
|
|
g_type_class_add_private (class, sizeof (GtkRangeLayout));
|
|
}
|
|
|
|
static void
|
|
gtk_range_set_property (GObject *object,
|
|
guint prop_id,
|
|
const GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GtkRange *range = GTK_RANGE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_ORIENTATION:
|
|
range->orientation = g_value_get_enum (value);
|
|
|
|
range->layout->slider_detail_quark = 0;
|
|
range->layout->stepper_detail_quark = 0;
|
|
|
|
gtk_widget_queue_resize (GTK_WIDGET (range));
|
|
break;
|
|
case PROP_UPDATE_POLICY:
|
|
gtk_range_set_update_policy (range, g_value_get_enum (value));
|
|
break;
|
|
case PROP_ADJUSTMENT:
|
|
gtk_range_set_adjustment (range, g_value_get_object (value));
|
|
break;
|
|
case PROP_INVERTED:
|
|
gtk_range_set_inverted (range, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_LOWER_STEPPER_SENSITIVITY:
|
|
gtk_range_set_lower_stepper_sensitivity (range, g_value_get_enum (value));
|
|
break;
|
|
case PROP_UPPER_STEPPER_SENSITIVITY:
|
|
gtk_range_set_upper_stepper_sensitivity (range, g_value_get_enum (value));
|
|
break;
|
|
case PROP_SHOW_FILL_LEVEL:
|
|
gtk_range_set_show_fill_level (range, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_RESTRICT_TO_FILL_LEVEL:
|
|
gtk_range_set_restrict_to_fill_level (range, g_value_get_boolean (value));
|
|
break;
|
|
case PROP_FILL_LEVEL:
|
|
gtk_range_set_fill_level (range, g_value_get_double (value));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_get_property (GObject *object,
|
|
guint prop_id,
|
|
GValue *value,
|
|
GParamSpec *pspec)
|
|
{
|
|
GtkRange *range = GTK_RANGE (object);
|
|
|
|
switch (prop_id)
|
|
{
|
|
case PROP_ORIENTATION:
|
|
g_value_set_enum (value, range->orientation);
|
|
break;
|
|
case PROP_UPDATE_POLICY:
|
|
g_value_set_enum (value, range->update_policy);
|
|
break;
|
|
case PROP_ADJUSTMENT:
|
|
g_value_set_object (value, range->adjustment);
|
|
break;
|
|
case PROP_INVERTED:
|
|
g_value_set_boolean (value, range->inverted);
|
|
break;
|
|
case PROP_LOWER_STEPPER_SENSITIVITY:
|
|
g_value_set_enum (value, gtk_range_get_lower_stepper_sensitivity (range));
|
|
break;
|
|
case PROP_UPPER_STEPPER_SENSITIVITY:
|
|
g_value_set_enum (value, gtk_range_get_upper_stepper_sensitivity (range));
|
|
break;
|
|
case PROP_SHOW_FILL_LEVEL:
|
|
g_value_set_boolean (value, gtk_range_get_show_fill_level (range));
|
|
break;
|
|
case PROP_RESTRICT_TO_FILL_LEVEL:
|
|
g_value_set_boolean (value, gtk_range_get_restrict_to_fill_level (range));
|
|
break;
|
|
case PROP_FILL_LEVEL:
|
|
g_value_set_double (value, gtk_range_get_fill_level (range));
|
|
break;
|
|
default:
|
|
G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_init (GtkRange *range)
|
|
{
|
|
gtk_widget_set_has_window (GTK_WIDGET (range), FALSE);
|
|
|
|
range->orientation = GTK_ORIENTATION_HORIZONTAL;
|
|
range->adjustment = NULL;
|
|
range->update_policy = GTK_UPDATE_CONTINUOUS;
|
|
range->inverted = FALSE;
|
|
range->flippable = FALSE;
|
|
range->min_slider_size = 1;
|
|
range->has_stepper_a = FALSE;
|
|
range->has_stepper_b = FALSE;
|
|
range->has_stepper_c = FALSE;
|
|
range->has_stepper_d = FALSE;
|
|
range->need_recalc = TRUE;
|
|
range->round_digits = -1;
|
|
range->layout = GTK_RANGE_GET_PRIVATE (range);
|
|
range->layout->mouse_location = MOUSE_OUTSIDE;
|
|
range->layout->mouse_x = -1;
|
|
range->layout->mouse_y = -1;
|
|
range->layout->grab_location = MOUSE_OUTSIDE;
|
|
range->layout->grab_button = 0;
|
|
range->layout->lower_sensitivity = GTK_SENSITIVITY_AUTO;
|
|
range->layout->upper_sensitivity = GTK_SENSITIVITY_AUTO;
|
|
range->layout->lower_sensitive = TRUE;
|
|
range->layout->upper_sensitive = TRUE;
|
|
range->layout->show_fill_level = FALSE;
|
|
range->layout->restrict_to_fill_level = TRUE;
|
|
range->layout->fill_level = G_MAXDOUBLE;
|
|
range->timer = NULL;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_adjustment:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Get the #GtkAdjustment which is the "model" object for #GtkRange.
|
|
* See gtk_range_set_adjustment() for details.
|
|
* The return value does not have a reference added, so should not
|
|
* be unreferenced.
|
|
*
|
|
* Return value: a #GtkAdjustment
|
|
**/
|
|
GtkAdjustment*
|
|
gtk_range_get_adjustment (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), NULL);
|
|
|
|
if (!range->adjustment)
|
|
gtk_range_set_adjustment (range, NULL);
|
|
|
|
return range->adjustment;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_update_policy:
|
|
* @range: a #GtkRange
|
|
* @policy: update policy
|
|
*
|
|
* Sets the update policy for the range. #GTK_UPDATE_CONTINUOUS means that
|
|
* anytime the range slider is moved, the range value will change and the
|
|
* value_changed signal will be emitted. #GTK_UPDATE_DELAYED means that
|
|
* the value will be updated after a brief timeout where no slider motion
|
|
* occurs, so updates are spaced by a short time rather than
|
|
* continuous. #GTK_UPDATE_DISCONTINUOUS means that the value will only
|
|
* be updated when the user releases the button and ends the slider
|
|
* drag operation.
|
|
**/
|
|
void
|
|
gtk_range_set_update_policy (GtkRange *range,
|
|
GtkUpdateType policy)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->update_policy != policy)
|
|
{
|
|
range->update_policy = policy;
|
|
g_object_notify (G_OBJECT (range), "update-policy");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_update_policy:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the update policy of @range. See gtk_range_set_update_policy().
|
|
*
|
|
* Return value: the current update policy
|
|
**/
|
|
GtkUpdateType
|
|
gtk_range_get_update_policy (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), GTK_UPDATE_CONTINUOUS);
|
|
|
|
return range->update_policy;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_adjustment:
|
|
* @range: a #GtkRange
|
|
* @adjustment: a #GtkAdjustment
|
|
*
|
|
* Sets the adjustment to be used as the "model" object for this range
|
|
* widget. The adjustment indicates the current range value, the
|
|
* minimum and maximum range values, the step/page increments used
|
|
* for keybindings and scrolling, and the page size. The page size
|
|
* is normally 0 for #GtkScale and nonzero for #GtkScrollbar, and
|
|
* indicates the size of the visible area of the widget being scrolled.
|
|
* The page size affects the size of the scrollbar slider.
|
|
**/
|
|
void
|
|
gtk_range_set_adjustment (GtkRange *range,
|
|
GtkAdjustment *adjustment)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (!adjustment)
|
|
adjustment = (GtkAdjustment*) gtk_adjustment_new (0.0, 0.0, 0.0, 0.0, 0.0, 0.0);
|
|
else
|
|
g_return_if_fail (GTK_IS_ADJUSTMENT (adjustment));
|
|
|
|
if (range->adjustment != adjustment)
|
|
{
|
|
if (range->adjustment)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (range->adjustment,
|
|
gtk_range_adjustment_changed,
|
|
range);
|
|
g_signal_handlers_disconnect_by_func (range->adjustment,
|
|
gtk_range_adjustment_value_changed,
|
|
range);
|
|
g_object_unref (range->adjustment);
|
|
}
|
|
|
|
range->adjustment = adjustment;
|
|
g_object_ref_sink (adjustment);
|
|
|
|
g_signal_connect (adjustment, "changed",
|
|
G_CALLBACK (gtk_range_adjustment_changed),
|
|
range);
|
|
g_signal_connect (adjustment, "value-changed",
|
|
G_CALLBACK (gtk_range_adjustment_value_changed),
|
|
range);
|
|
|
|
gtk_range_adjustment_changed (adjustment, range);
|
|
g_object_notify (G_OBJECT (range), "adjustment");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_inverted:
|
|
* @range: a #GtkRange
|
|
* @setting: %TRUE to invert the range
|
|
*
|
|
* Ranges normally move from lower to higher values as the
|
|
* slider moves from top to bottom or left to right. Inverted
|
|
* ranges have higher values at the top or on the right rather than
|
|
* on the bottom or left.
|
|
**/
|
|
void
|
|
gtk_range_set_inverted (GtkRange *range,
|
|
gboolean setting)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
setting = setting != FALSE;
|
|
|
|
if (setting != range->inverted)
|
|
{
|
|
range->inverted = setting;
|
|
g_object_notify (G_OBJECT (range), "inverted");
|
|
gtk_widget_queue_resize (GTK_WIDGET (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_inverted:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the value set by gtk_range_set_inverted().
|
|
*
|
|
* Return value: %TRUE if the range is inverted
|
|
**/
|
|
gboolean
|
|
gtk_range_get_inverted (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->inverted;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_flippable:
|
|
* @range: a #GtkRange
|
|
* @flippable: %TRUE to make the range flippable
|
|
*
|
|
* If a range is flippable, it will switch its direction if it is
|
|
* horizontal and its direction is %GTK_TEXT_DIR_RTL.
|
|
*
|
|
* See gtk_widget_get_direction().
|
|
*
|
|
* Since: 2.18
|
|
**/
|
|
void
|
|
gtk_range_set_flippable (GtkRange *range,
|
|
gboolean flippable)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
flippable = flippable ? TRUE : FALSE;
|
|
|
|
if (flippable != range->flippable)
|
|
{
|
|
range->flippable = flippable;
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_flippable:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the value set by gtk_range_set_flippable().
|
|
*
|
|
* Return value: %TRUE if the range is flippable
|
|
*
|
|
* Since: 2.18
|
|
**/
|
|
gboolean
|
|
gtk_range_get_flippable (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->flippable;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_slider_size_fixed:
|
|
* @range: a #GtkRange
|
|
* @size_fixed: %TRUE to make the slider size constant
|
|
*
|
|
* Sets whether the range's slider has a fixed size, or a size that
|
|
* depends on it's adjustment's page size.
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
void
|
|
gtk_range_set_slider_size_fixed (GtkRange *range,
|
|
gboolean size_fixed)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (size_fixed != range->slider_size_fixed)
|
|
{
|
|
range->slider_size_fixed = size_fixed ? TRUE : FALSE;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_slider_size_fixed:
|
|
* @range: a #GtkRange
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* See gtk_range_set_slider_size_fixed().
|
|
*
|
|
* Return value: whether the range's slider has a fixed size.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
gboolean
|
|
gtk_range_get_slider_size_fixed (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->slider_size_fixed;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_min_slider_size:
|
|
* @range: a #GtkRange
|
|
* @min_size: The slider's minimum size
|
|
*
|
|
* Sets the minimum size of the range's slider.
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
void
|
|
gtk_range_set_min_slider_size (GtkRange *range,
|
|
gboolean min_size)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
g_return_if_fail (min_size > 0);
|
|
|
|
if (min_size != range->min_slider_size)
|
|
{
|
|
range->min_slider_size = min_size;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_min_slider_size:
|
|
* @range: a #GtkRange
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* See gtk_range_set_min_slider_size().
|
|
*
|
|
* Return value: The minimum size of the range's slider.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
gint
|
|
gtk_range_get_min_slider_size (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->min_slider_size;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_range_rect:
|
|
* @range: a #GtkRange
|
|
* @range_rect: return location for the range rectangle
|
|
*
|
|
* This function returns the area that contains the range's trough
|
|
* and its steppers, in widget->window coordinates.
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
void
|
|
gtk_range_get_range_rect (GtkRange *range,
|
|
GdkRectangle *range_rect)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
g_return_if_fail (range_rect != NULL);
|
|
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
*range_rect = range->range_rect;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_slider_range:
|
|
* @range: a #GtkRange
|
|
* @slider_start: (allow-none): return location for the slider's start, or %NULL
|
|
* @slider_end: (allow-none): return location for the slider's end, or %NULL
|
|
*
|
|
* This function returns sliders range along the long dimension,
|
|
* in widget->window coordinates.
|
|
*
|
|
* This function is useful mainly for #GtkRange subclasses.
|
|
*
|
|
* Since: 2.20
|
|
**/
|
|
void
|
|
gtk_range_get_slider_range (GtkRange *range,
|
|
gint *slider_start,
|
|
gint *slider_end)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
if (slider_start)
|
|
*slider_start = range->slider_start;
|
|
|
|
if (slider_end)
|
|
*slider_end = range->slider_end;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_lower_stepper_sensitivity:
|
|
* @range: a #GtkRange
|
|
* @sensitivity: the lower stepper's sensitivity policy.
|
|
*
|
|
* Sets the sensitivity policy for the stepper that points to the
|
|
* 'lower' end of the GtkRange's adjustment.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_range_set_lower_stepper_sensitivity (GtkRange *range,
|
|
GtkSensitivityType sensitivity)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->layout->lower_sensitivity != sensitivity)
|
|
{
|
|
range->layout->lower_sensitivity = sensitivity;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
|
|
g_object_notify (G_OBJECT (range), "lower-stepper-sensitivity");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_lower_stepper_sensitivity:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the sensitivity policy for the stepper that points to the
|
|
* 'lower' end of the GtkRange's adjustment.
|
|
*
|
|
* Return value: The lower stepper's sensitivity policy.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
GtkSensitivityType
|
|
gtk_range_get_lower_stepper_sensitivity (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
|
|
|
|
return range->layout->lower_sensitivity;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_upper_stepper_sensitivity:
|
|
* @range: a #GtkRange
|
|
* @sensitivity: the upper stepper's sensitivity policy.
|
|
*
|
|
* Sets the sensitivity policy for the stepper that points to the
|
|
* 'upper' end of the GtkRange's adjustment.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
void
|
|
gtk_range_set_upper_stepper_sensitivity (GtkRange *range,
|
|
GtkSensitivityType sensitivity)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->layout->upper_sensitivity != sensitivity)
|
|
{
|
|
range->layout->upper_sensitivity = sensitivity;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
|
|
g_object_notify (G_OBJECT (range), "upper-stepper-sensitivity");
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_upper_stepper_sensitivity:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the sensitivity policy for the stepper that points to the
|
|
* 'upper' end of the GtkRange's adjustment.
|
|
*
|
|
* Return value: The upper stepper's sensitivity policy.
|
|
*
|
|
* Since: 2.10
|
|
**/
|
|
GtkSensitivityType
|
|
gtk_range_get_upper_stepper_sensitivity (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), GTK_SENSITIVITY_AUTO);
|
|
|
|
return range->layout->upper_sensitivity;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_increments:
|
|
* @range: a #GtkRange
|
|
* @step: step size
|
|
* @page: page size
|
|
*
|
|
* Sets the step and page sizes for the range.
|
|
* The step size is used when the user clicks the #GtkScrollbar
|
|
* arrows or moves #GtkScale via arrow keys. The page size
|
|
* is used for example when moving via Page Up or Page Down keys.
|
|
**/
|
|
void
|
|
gtk_range_set_increments (GtkRange *range,
|
|
gdouble step,
|
|
gdouble page)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
range->adjustment->step_increment = step;
|
|
range->adjustment->page_increment = page;
|
|
|
|
gtk_adjustment_changed (range->adjustment);
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_range:
|
|
* @range: a #GtkRange
|
|
* @min: minimum range value
|
|
* @max: maximum range value
|
|
*
|
|
* Sets the allowable values in the #GtkRange, and clamps the range
|
|
* value to be between @min and @max. (If the range has a non-zero
|
|
* page size, it is clamped between @min and @max - page-size.)
|
|
**/
|
|
void
|
|
gtk_range_set_range (GtkRange *range,
|
|
gdouble min,
|
|
gdouble max)
|
|
{
|
|
gdouble value;
|
|
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
g_return_if_fail (min < max);
|
|
|
|
range->adjustment->lower = min;
|
|
range->adjustment->upper = max;
|
|
|
|
value = range->adjustment->value;
|
|
|
|
if (range->layout->restrict_to_fill_level)
|
|
value = MIN (value, MAX (range->adjustment->lower,
|
|
range->layout->fill_level));
|
|
|
|
value = CLAMP (value, range->adjustment->lower,
|
|
(range->adjustment->upper - range->adjustment->page_size));
|
|
|
|
gtk_adjustment_set_value (range->adjustment, value);
|
|
gtk_adjustment_changed (range->adjustment);
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_value:
|
|
* @range: a #GtkRange
|
|
* @value: new value of the range
|
|
*
|
|
* Sets the current value of the range; if the value is outside the
|
|
* minimum or maximum range values, it will be clamped to fit inside
|
|
* them. The range emits the #GtkRange::value-changed signal if the
|
|
* value changes.
|
|
**/
|
|
void
|
|
gtk_range_set_value (GtkRange *range,
|
|
gdouble value)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (range->layout->restrict_to_fill_level)
|
|
value = MIN (value, MAX (range->adjustment->lower,
|
|
range->layout->fill_level));
|
|
|
|
value = CLAMP (value, range->adjustment->lower,
|
|
(range->adjustment->upper - range->adjustment->page_size));
|
|
|
|
gtk_adjustment_set_value (range->adjustment, value);
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_value:
|
|
* @range: a #GtkRange
|
|
*
|
|
* Gets the current value of the range.
|
|
*
|
|
* Return value: current value of the range.
|
|
**/
|
|
gdouble
|
|
gtk_range_get_value (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
|
|
|
|
return range->adjustment->value;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_show_fill_level:
|
|
* @range: A #GtkRange
|
|
* @show_fill_level: Whether a fill level indicator graphics is shown.
|
|
*
|
|
* Sets whether a graphical fill level is show on the trough. See
|
|
* gtk_range_set_fill_level() for a general description of the fill
|
|
* level concept.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gtk_range_set_show_fill_level (GtkRange *range,
|
|
gboolean show_fill_level)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
show_fill_level = show_fill_level ? TRUE : FALSE;
|
|
|
|
if (show_fill_level != range->layout->show_fill_level)
|
|
{
|
|
range->layout->show_fill_level = show_fill_level;
|
|
g_object_notify (G_OBJECT (range), "show-fill-level");
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_show_fill_level:
|
|
* @range: A #GtkRange
|
|
*
|
|
* Gets whether the range displays the fill level graphically.
|
|
*
|
|
* Return value: %TRUE if @range shows the fill level.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
gboolean
|
|
gtk_range_get_show_fill_level (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->layout->show_fill_level;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_restrict_to_fill_level:
|
|
* @range: A #GtkRange
|
|
* @restrict_to_fill_level: Whether the fill level restricts slider movement.
|
|
*
|
|
* Sets whether the slider is restricted to the fill level. See
|
|
* gtk_range_set_fill_level() for a general description of the fill
|
|
* level concept.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gtk_range_set_restrict_to_fill_level (GtkRange *range,
|
|
gboolean restrict_to_fill_level)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
restrict_to_fill_level = restrict_to_fill_level ? TRUE : FALSE;
|
|
|
|
if (restrict_to_fill_level != range->layout->restrict_to_fill_level)
|
|
{
|
|
range->layout->restrict_to_fill_level = restrict_to_fill_level;
|
|
g_object_notify (G_OBJECT (range), "restrict-to-fill-level");
|
|
|
|
gtk_range_set_value (range, gtk_range_get_value (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_restrict_to_fill_level:
|
|
* @range: A #GtkRange
|
|
*
|
|
* Gets whether the range is restricted to the fill level.
|
|
*
|
|
* Return value: %TRUE if @range is restricted to the fill level.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
gboolean
|
|
gtk_range_get_restrict_to_fill_level (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), FALSE);
|
|
|
|
return range->layout->restrict_to_fill_level;
|
|
}
|
|
|
|
/**
|
|
* gtk_range_set_fill_level:
|
|
* @range: a #GtkRange
|
|
* @fill_level: the new position of the fill level indicator
|
|
*
|
|
* Set the new position of the fill level indicator.
|
|
*
|
|
* The "fill level" is probably best described by its most prominent
|
|
* use case, which is an indicator for the amount of pre-buffering in
|
|
* a streaming media player. In that use case, the value of the range
|
|
* would indicate the current play position, and the fill level would
|
|
* be the position up to which the file/stream has been downloaded.
|
|
*
|
|
* This amount of prebuffering can be displayed on the range's trough
|
|
* and is themeable separately from the trough. To enable fill level
|
|
* display, use gtk_range_set_show_fill_level(). The range defaults
|
|
* to not showing the fill level.
|
|
*
|
|
* Additionally, it's possible to restrict the range's slider position
|
|
* to values which are smaller than the fill level. This is controller
|
|
* by gtk_range_set_restrict_to_fill_level() and is by default
|
|
* enabled.
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
void
|
|
gtk_range_set_fill_level (GtkRange *range,
|
|
gdouble fill_level)
|
|
{
|
|
g_return_if_fail (GTK_IS_RANGE (range));
|
|
|
|
if (fill_level != range->layout->fill_level)
|
|
{
|
|
range->layout->fill_level = fill_level;
|
|
g_object_notify (G_OBJECT (range), "fill-level");
|
|
|
|
if (range->layout->show_fill_level)
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
|
|
if (range->layout->restrict_to_fill_level)
|
|
gtk_range_set_value (range, gtk_range_get_value (range));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* gtk_range_get_fill_level:
|
|
* @range : A #GtkRange
|
|
*
|
|
* Gets the current position of the fill level indicator.
|
|
*
|
|
* Return value: The current fill level
|
|
*
|
|
* Since: 2.12
|
|
**/
|
|
gdouble
|
|
gtk_range_get_fill_level (GtkRange *range)
|
|
{
|
|
g_return_val_if_fail (GTK_IS_RANGE (range), 0.0);
|
|
|
|
return range->layout->fill_level;
|
|
}
|
|
|
|
static gboolean
|
|
should_invert (GtkRange *range)
|
|
{
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
return
|
|
(range->inverted && !range->flippable) ||
|
|
(range->inverted && range->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_LTR) ||
|
|
(!range->inverted && range->flippable && gtk_widget_get_direction (GTK_WIDGET (range)) == GTK_TEXT_DIR_RTL);
|
|
else
|
|
return range->inverted;
|
|
}
|
|
|
|
static void
|
|
gtk_range_destroy (GtkObject *object)
|
|
{
|
|
GtkRange *range = GTK_RANGE (object);
|
|
|
|
gtk_range_remove_step_timer (range);
|
|
gtk_range_remove_update_timer (range);
|
|
|
|
if (range->layout->repaint_id)
|
|
g_source_remove (range->layout->repaint_id);
|
|
range->layout->repaint_id = 0;
|
|
|
|
if (range->adjustment)
|
|
{
|
|
g_signal_handlers_disconnect_by_func (range->adjustment,
|
|
gtk_range_adjustment_changed,
|
|
range);
|
|
g_signal_handlers_disconnect_by_func (range->adjustment,
|
|
gtk_range_adjustment_value_changed,
|
|
range);
|
|
g_object_unref (range->adjustment);
|
|
range->adjustment = NULL;
|
|
}
|
|
|
|
if (range->layout->n_marks)
|
|
{
|
|
g_free (range->layout->marks);
|
|
range->layout->marks = NULL;
|
|
g_free (range->layout->mark_pos);
|
|
range->layout->mark_pos = NULL;
|
|
range->layout->n_marks = 0;
|
|
}
|
|
|
|
GTK_OBJECT_CLASS (gtk_range_parent_class)->destroy (object);
|
|
}
|
|
|
|
static void
|
|
gtk_range_size_request (GtkWidget *widget,
|
|
GtkRequisition *requisition)
|
|
{
|
|
GtkRange *range;
|
|
gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
|
|
GdkRectangle range_rect;
|
|
GtkBorder border;
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
gtk_range_get_props (range,
|
|
&slider_width, &stepper_size,
|
|
&focus_width, &trough_border,
|
|
&stepper_spacing, NULL,
|
|
NULL, NULL);
|
|
|
|
gtk_range_calc_request (range,
|
|
slider_width, stepper_size,
|
|
focus_width, trough_border, stepper_spacing,
|
|
&range_rect, &border, NULL, NULL, NULL, NULL);
|
|
|
|
requisition->width = range_rect.width + border.left + border.right;
|
|
requisition->height = range_rect.height + border.top + border.bottom;
|
|
}
|
|
|
|
static void
|
|
gtk_range_size_allocate (GtkWidget *widget,
|
|
GtkAllocation *allocation)
|
|
{
|
|
GtkRange *range;
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
widget->allocation = *allocation;
|
|
|
|
range->layout->recalc_marks = TRUE;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
if (gtk_widget_get_realized (widget))
|
|
gdk_window_move_resize (range->event_window,
|
|
widget->allocation.x,
|
|
widget->allocation.y,
|
|
widget->allocation.width,
|
|
widget->allocation.height);
|
|
}
|
|
|
|
static void
|
|
gtk_range_realize (GtkWidget *widget)
|
|
{
|
|
GtkRange *range;
|
|
GdkWindowAttr attributes;
|
|
gint attributes_mask;
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
gtk_widget_set_realized (widget, TRUE);
|
|
|
|
widget->window = gtk_widget_get_parent_window (widget);
|
|
g_object_ref (widget->window);
|
|
|
|
attributes.window_type = GDK_WINDOW_CHILD;
|
|
attributes.x = widget->allocation.x;
|
|
attributes.y = widget->allocation.y;
|
|
attributes.width = widget->allocation.width;
|
|
attributes.height = widget->allocation.height;
|
|
attributes.wclass = GDK_INPUT_ONLY;
|
|
attributes.event_mask = gtk_widget_get_events (widget);
|
|
attributes.event_mask |= (GDK_BUTTON_PRESS_MASK |
|
|
GDK_BUTTON_RELEASE_MASK |
|
|
GDK_ENTER_NOTIFY_MASK |
|
|
GDK_LEAVE_NOTIFY_MASK |
|
|
GDK_POINTER_MOTION_MASK |
|
|
GDK_POINTER_MOTION_HINT_MASK);
|
|
|
|
attributes_mask = GDK_WA_X | GDK_WA_Y;
|
|
|
|
range->event_window = gdk_window_new (gtk_widget_get_parent_window (widget),
|
|
&attributes, attributes_mask);
|
|
gdk_window_set_user_data (range->event_window, range);
|
|
|
|
widget->style = gtk_style_attach (widget->style, widget->window);
|
|
}
|
|
|
|
static void
|
|
gtk_range_unrealize (GtkWidget *widget)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
gtk_range_remove_step_timer (range);
|
|
gtk_range_remove_update_timer (range);
|
|
|
|
gdk_window_set_user_data (range->event_window, NULL);
|
|
gdk_window_destroy (range->event_window);
|
|
range->event_window = NULL;
|
|
|
|
GTK_WIDGET_CLASS (gtk_range_parent_class)->unrealize (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_range_map (GtkWidget *widget)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
gdk_window_show (range->event_window);
|
|
|
|
GTK_WIDGET_CLASS (gtk_range_parent_class)->map (widget);
|
|
}
|
|
|
|
static void
|
|
gtk_range_unmap (GtkWidget *widget)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
stop_scrolling (range);
|
|
|
|
gdk_window_hide (range->event_window);
|
|
|
|
GTK_WIDGET_CLASS (gtk_range_parent_class)->unmap (widget);
|
|
}
|
|
|
|
static const gchar *
|
|
gtk_range_get_slider_detail (GtkRange *range)
|
|
{
|
|
const gchar *slider_detail;
|
|
|
|
if (range->layout->slider_detail_quark)
|
|
return g_quark_to_string (range->layout->slider_detail_quark);
|
|
|
|
slider_detail = GTK_RANGE_GET_CLASS (range)->slider_detail;
|
|
|
|
if (slider_detail && slider_detail[0] == 'X')
|
|
{
|
|
gchar *detail = g_strdup (slider_detail);
|
|
|
|
detail[0] = range->orientation == GTK_ORIENTATION_HORIZONTAL ? 'h' : 'v';
|
|
|
|
range->layout->slider_detail_quark = g_quark_from_string (detail);
|
|
|
|
g_free (detail);
|
|
|
|
return g_quark_to_string (range->layout->slider_detail_quark);
|
|
}
|
|
|
|
return slider_detail;
|
|
}
|
|
|
|
static const gchar *
|
|
gtk_range_get_stepper_detail (GtkRange *range)
|
|
{
|
|
const gchar *stepper_detail;
|
|
|
|
if (range->layout->stepper_detail_quark)
|
|
return g_quark_to_string (range->layout->stepper_detail_quark);
|
|
|
|
stepper_detail = GTK_RANGE_GET_CLASS (range)->stepper_detail;
|
|
|
|
if (stepper_detail && stepper_detail[0] == 'X')
|
|
{
|
|
gchar *detail = g_strdup (stepper_detail);
|
|
|
|
detail[0] = range->orientation == GTK_ORIENTATION_HORIZONTAL ? 'h' : 'v';
|
|
|
|
range->layout->stepper_detail_quark = g_quark_from_string (detail);
|
|
|
|
g_free (detail);
|
|
|
|
return g_quark_to_string (range->layout->stepper_detail_quark);
|
|
}
|
|
|
|
return stepper_detail;
|
|
}
|
|
|
|
static void
|
|
draw_stepper (GtkRange *range,
|
|
GdkRectangle *rect,
|
|
GtkArrowType arrow_type,
|
|
gboolean clicked,
|
|
gboolean prelighted,
|
|
GdkRectangle *area)
|
|
{
|
|
GtkStateType state_type;
|
|
GtkShadowType shadow_type;
|
|
GdkRectangle intersection;
|
|
GtkWidget *widget = GTK_WIDGET (range);
|
|
gfloat arrow_scaling;
|
|
|
|
gint arrow_x;
|
|
gint arrow_y;
|
|
gint arrow_width;
|
|
gint arrow_height;
|
|
|
|
gboolean arrow_sensitive = TRUE;
|
|
|
|
/* More to get the right clip region than for efficiency */
|
|
if (!gdk_rectangle_intersect (area, rect, &intersection))
|
|
return;
|
|
|
|
intersection.x += widget->allocation.x;
|
|
intersection.y += widget->allocation.y;
|
|
|
|
if ((!range->inverted && (arrow_type == GTK_ARROW_DOWN ||
|
|
arrow_type == GTK_ARROW_RIGHT)) ||
|
|
(range->inverted && (arrow_type == GTK_ARROW_UP ||
|
|
arrow_type == GTK_ARROW_LEFT)))
|
|
{
|
|
arrow_sensitive = range->layout->upper_sensitive;
|
|
}
|
|
else
|
|
{
|
|
arrow_sensitive = range->layout->lower_sensitive;
|
|
}
|
|
|
|
if (!gtk_widget_is_sensitive (GTK_WIDGET (range)) || !arrow_sensitive)
|
|
state_type = GTK_STATE_INSENSITIVE;
|
|
else if (clicked)
|
|
state_type = GTK_STATE_ACTIVE;
|
|
else if (prelighted)
|
|
state_type = GTK_STATE_PRELIGHT;
|
|
else
|
|
state_type = GTK_STATE_NORMAL;
|
|
|
|
if (clicked && arrow_sensitive)
|
|
shadow_type = GTK_SHADOW_IN;
|
|
else
|
|
shadow_type = GTK_SHADOW_OUT;
|
|
|
|
gtk_paint_box (widget->style,
|
|
widget->window,
|
|
state_type, shadow_type,
|
|
&intersection, widget,
|
|
gtk_range_get_stepper_detail (range),
|
|
widget->allocation.x + rect->x,
|
|
widget->allocation.y + rect->y,
|
|
rect->width,
|
|
rect->height);
|
|
|
|
gtk_widget_style_get (widget, "arrow-scaling", &arrow_scaling, NULL);
|
|
|
|
arrow_width = rect->width * arrow_scaling;
|
|
arrow_height = rect->height * arrow_scaling;
|
|
arrow_x = widget->allocation.x + rect->x + (rect->width - arrow_width) / 2;
|
|
arrow_y = widget->allocation.y + rect->y + (rect->height - arrow_height) / 2;
|
|
|
|
if (clicked && arrow_sensitive)
|
|
{
|
|
gint arrow_displacement_x;
|
|
gint arrow_displacement_y;
|
|
|
|
gtk_range_get_props (GTK_RANGE (widget),
|
|
NULL, NULL, NULL, NULL, NULL, NULL,
|
|
&arrow_displacement_x, &arrow_displacement_y);
|
|
|
|
arrow_x += arrow_displacement_x;
|
|
arrow_y += arrow_displacement_y;
|
|
}
|
|
|
|
gtk_paint_arrow (widget->style,
|
|
widget->window,
|
|
state_type, shadow_type,
|
|
&intersection, widget,
|
|
gtk_range_get_stepper_detail (range),
|
|
arrow_type,
|
|
TRUE,
|
|
arrow_x, arrow_y, arrow_width, arrow_height);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_expose (GtkWidget *widget,
|
|
GdkEventExpose *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
gboolean sensitive;
|
|
GtkStateType state;
|
|
GtkShadowType shadow_type;
|
|
GdkRectangle expose_area; /* Relative to widget->allocation */
|
|
GdkRectangle area;
|
|
gint focus_line_width = 0;
|
|
gint focus_padding = 0;
|
|
gboolean touchscreen;
|
|
|
|
g_object_get (gtk_widget_get_settings (widget),
|
|
"gtk-touchscreen-mode", &touchscreen,
|
|
NULL);
|
|
if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
|
|
gtk_widget_style_get (GTK_WIDGET (range),
|
|
"focus-line-width", &focus_line_width,
|
|
"focus-padding", &focus_padding,
|
|
NULL);
|
|
|
|
/* we're now exposing, so there's no need to force early repaints */
|
|
if (range->layout->repaint_id)
|
|
g_source_remove (range->layout->repaint_id);
|
|
range->layout->repaint_id = 0;
|
|
|
|
expose_area = event->area;
|
|
expose_area.x -= widget->allocation.x;
|
|
expose_area.y -= widget->allocation.y;
|
|
|
|
gtk_range_calc_marks (range);
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
sensitive = gtk_widget_is_sensitive (widget);
|
|
|
|
/* Just to be confusing, we draw the trough for the whole
|
|
* range rectangle, not the trough rectangle (the trough
|
|
* rectangle is just for hit detection)
|
|
*/
|
|
/* The gdk_rectangle_intersect is more to get the right
|
|
* clip region (limited to range_rect) than for efficiency
|
|
*/
|
|
if (gdk_rectangle_intersect (&expose_area, &range->range_rect,
|
|
&area))
|
|
{
|
|
gint x = (widget->allocation.x + range->range_rect.x +
|
|
focus_line_width + focus_padding);
|
|
gint y = (widget->allocation.y + range->range_rect.y +
|
|
focus_line_width + focus_padding);
|
|
gint width = (range->range_rect.width -
|
|
2 * (focus_line_width + focus_padding));
|
|
gint height = (range->range_rect.height -
|
|
2 * (focus_line_width + focus_padding));
|
|
gboolean trough_side_details;
|
|
gboolean trough_under_steppers;
|
|
gint stepper_size;
|
|
gint stepper_spacing;
|
|
|
|
area.x += widget->allocation.x;
|
|
area.y += widget->allocation.y;
|
|
|
|
gtk_widget_style_get (GTK_WIDGET (range),
|
|
"trough-side-details", &trough_side_details,
|
|
"trough-under-steppers", &trough_under_steppers,
|
|
"stepper-size", &stepper_size,
|
|
"stepper-spacing", &stepper_spacing,
|
|
NULL);
|
|
|
|
if (stepper_spacing > 0)
|
|
trough_under_steppers = FALSE;
|
|
|
|
if (! trough_under_steppers)
|
|
{
|
|
gint offset = 0;
|
|
gint shorter = 0;
|
|
|
|
if (range->has_stepper_a)
|
|
offset += stepper_size;
|
|
|
|
if (range->has_stepper_b)
|
|
offset += stepper_size;
|
|
|
|
shorter += offset;
|
|
|
|
if (range->has_stepper_c)
|
|
shorter += stepper_size;
|
|
|
|
if (range->has_stepper_d)
|
|
shorter += stepper_size;
|
|
|
|
if (range->has_stepper_a || range->has_stepper_b)
|
|
{
|
|
offset += stepper_spacing;
|
|
shorter += stepper_spacing;
|
|
}
|
|
|
|
if (range->has_stepper_c || range->has_stepper_d)
|
|
{
|
|
shorter += stepper_spacing;
|
|
}
|
|
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
x += offset;
|
|
width -= shorter;
|
|
}
|
|
else
|
|
{
|
|
y += offset;
|
|
height -= shorter;
|
|
}
|
|
}
|
|
|
|
if (! trough_side_details)
|
|
{
|
|
gtk_paint_box (widget->style,
|
|
widget->window,
|
|
sensitive ? GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE,
|
|
GTK_SHADOW_IN,
|
|
&area, GTK_WIDGET(range), "trough",
|
|
x, y,
|
|
width, height);
|
|
}
|
|
else
|
|
{
|
|
gint trough_change_pos_x = width;
|
|
gint trough_change_pos_y = height;
|
|
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
trough_change_pos_x = (range->layout->slider.x +
|
|
range->layout->slider.width / 2 -
|
|
(x - widget->allocation.x));
|
|
else
|
|
trough_change_pos_y = (range->layout->slider.y +
|
|
range->layout->slider.height / 2 -
|
|
(y - widget->allocation.y));
|
|
|
|
gtk_paint_box (widget->style,
|
|
widget->window,
|
|
sensitive ? GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE,
|
|
GTK_SHADOW_IN,
|
|
&area, GTK_WIDGET (range),
|
|
should_invert (range) ? "trough-upper" : "trough-lower",
|
|
x, y,
|
|
trough_change_pos_x, trough_change_pos_y);
|
|
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
trough_change_pos_y = 0;
|
|
else
|
|
trough_change_pos_x = 0;
|
|
|
|
gtk_paint_box (widget->style,
|
|
widget->window,
|
|
sensitive ? GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE,
|
|
GTK_SHADOW_IN,
|
|
&area, GTK_WIDGET (range),
|
|
should_invert (range) ? "trough-lower" : "trough-upper",
|
|
x + trough_change_pos_x, y + trough_change_pos_y,
|
|
width - trough_change_pos_x,
|
|
height - trough_change_pos_y);
|
|
}
|
|
|
|
if (range->layout->show_fill_level &&
|
|
range->adjustment->upper - range->adjustment->page_size -
|
|
range->adjustment->lower != 0)
|
|
{
|
|
gdouble fill_level = range->layout->fill_level;
|
|
gint fill_x = x;
|
|
gint fill_y = y;
|
|
gint fill_width = width;
|
|
gint fill_height = height;
|
|
gchar *fill_detail;
|
|
|
|
fill_level = CLAMP (fill_level, range->adjustment->lower,
|
|
range->adjustment->upper -
|
|
range->adjustment->page_size);
|
|
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
fill_x = widget->allocation.x + range->layout->trough.x;
|
|
fill_width = (range->layout->slider.width +
|
|
(fill_level - range->adjustment->lower) /
|
|
(range->adjustment->upper -
|
|
range->adjustment->lower -
|
|
range->adjustment->page_size) *
|
|
(range->layout->trough.width -
|
|
range->layout->slider.width));
|
|
|
|
if (should_invert (range))
|
|
fill_x += range->layout->trough.width - fill_width;
|
|
}
|
|
else
|
|
{
|
|
fill_y = widget->allocation.y + range->layout->trough.y;
|
|
fill_height = (range->layout->slider.height +
|
|
(fill_level - range->adjustment->lower) /
|
|
(range->adjustment->upper -
|
|
range->adjustment->lower -
|
|
range->adjustment->page_size) *
|
|
(range->layout->trough.height -
|
|
range->layout->slider.height));
|
|
|
|
if (should_invert (range))
|
|
fill_y += range->layout->trough.height - fill_height;
|
|
}
|
|
|
|
if (fill_level < range->adjustment->upper - range->adjustment->page_size)
|
|
fill_detail = "trough-fill-level-full";
|
|
else
|
|
fill_detail = "trough-fill-level";
|
|
|
|
gtk_paint_box (widget->style,
|
|
widget->window,
|
|
sensitive ? GTK_STATE_ACTIVE : GTK_STATE_INSENSITIVE,
|
|
GTK_SHADOW_OUT,
|
|
&area, GTK_WIDGET (range), fill_detail,
|
|
fill_x, fill_y,
|
|
fill_width, fill_height);
|
|
}
|
|
|
|
if (sensitive && gtk_widget_has_focus (widget))
|
|
gtk_paint_focus (widget->style, widget->window, gtk_widget_get_state (widget),
|
|
&area, widget, "trough",
|
|
widget->allocation.x + range->range_rect.x,
|
|
widget->allocation.y + range->range_rect.y,
|
|
range->range_rect.width,
|
|
range->range_rect.height);
|
|
}
|
|
|
|
shadow_type = GTK_SHADOW_OUT;
|
|
|
|
if (!sensitive)
|
|
state = GTK_STATE_INSENSITIVE;
|
|
else if (!touchscreen && range->layout->mouse_location == MOUSE_SLIDER)
|
|
state = GTK_STATE_PRELIGHT;
|
|
else
|
|
state = GTK_STATE_NORMAL;
|
|
|
|
if (range->layout->grab_location == MOUSE_SLIDER)
|
|
{
|
|
gboolean activate_slider;
|
|
|
|
gtk_widget_style_get (widget, "activate-slider", &activate_slider, NULL);
|
|
|
|
if (activate_slider)
|
|
{
|
|
state = GTK_STATE_ACTIVE;
|
|
shadow_type = GTK_SHADOW_IN;
|
|
}
|
|
}
|
|
|
|
if (gdk_rectangle_intersect (&expose_area,
|
|
&range->layout->slider,
|
|
&area))
|
|
{
|
|
area.x += widget->allocation.x;
|
|
area.y += widget->allocation.y;
|
|
|
|
gtk_paint_slider (widget->style,
|
|
widget->window,
|
|
state,
|
|
shadow_type,
|
|
&area,
|
|
widget,
|
|
gtk_range_get_slider_detail (range),
|
|
widget->allocation.x + range->layout->slider.x,
|
|
widget->allocation.y + range->layout->slider.y,
|
|
range->layout->slider.width,
|
|
range->layout->slider.height,
|
|
range->orientation);
|
|
}
|
|
|
|
if (range->has_stepper_a)
|
|
draw_stepper (range, &range->layout->stepper_a,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
|
|
range->layout->grab_location == MOUSE_STEPPER_A,
|
|
!touchscreen && range->layout->mouse_location == MOUSE_STEPPER_A,
|
|
&expose_area);
|
|
|
|
if (range->has_stepper_b)
|
|
draw_stepper (range, &range->layout->stepper_b,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
|
|
range->layout->grab_location == MOUSE_STEPPER_B,
|
|
!touchscreen && range->layout->mouse_location == MOUSE_STEPPER_B,
|
|
&expose_area);
|
|
|
|
if (range->has_stepper_c)
|
|
draw_stepper (range, &range->layout->stepper_c,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_UP : GTK_ARROW_LEFT,
|
|
range->layout->grab_location == MOUSE_STEPPER_C,
|
|
!touchscreen && range->layout->mouse_location == MOUSE_STEPPER_C,
|
|
&expose_area);
|
|
|
|
if (range->has_stepper_d)
|
|
draw_stepper (range, &range->layout->stepper_d,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ? GTK_ARROW_DOWN : GTK_ARROW_RIGHT,
|
|
range->layout->grab_location == MOUSE_STEPPER_D,
|
|
!touchscreen && range->layout->mouse_location == MOUSE_STEPPER_D,
|
|
&expose_area);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
range_grab_add (GtkRange *range,
|
|
MouseLocation location,
|
|
gint button)
|
|
{
|
|
/* we don't actually gtk_grab, since a button is down */
|
|
|
|
gtk_grab_add (GTK_WIDGET (range));
|
|
|
|
range->layout->grab_location = location;
|
|
range->layout->grab_button = button;
|
|
|
|
if (gtk_range_update_mouse_location (range))
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
|
|
static void
|
|
range_grab_remove (GtkRange *range)
|
|
{
|
|
MouseLocation location;
|
|
|
|
gtk_grab_remove (GTK_WIDGET (range));
|
|
|
|
location = range->layout->grab_location;
|
|
range->layout->grab_location = MOUSE_OUTSIDE;
|
|
range->layout->grab_button = 0;
|
|
|
|
if (gtk_range_update_mouse_location (range) ||
|
|
location != MOUSE_OUTSIDE)
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
}
|
|
|
|
static GtkScrollType
|
|
range_get_scroll_for_grab (GtkRange *range)
|
|
{
|
|
gboolean invert;
|
|
|
|
invert = should_invert (range);
|
|
switch (range->layout->grab_location)
|
|
{
|
|
/* Backward stepper */
|
|
case MOUSE_STEPPER_A:
|
|
case MOUSE_STEPPER_C:
|
|
switch (range->layout->grab_button)
|
|
{
|
|
case 1:
|
|
return invert ? GTK_SCROLL_STEP_FORWARD : GTK_SCROLL_STEP_BACKWARD;
|
|
break;
|
|
case 2:
|
|
return invert ? GTK_SCROLL_PAGE_FORWARD : GTK_SCROLL_PAGE_BACKWARD;
|
|
break;
|
|
case 3:
|
|
return invert ? GTK_SCROLL_END : GTK_SCROLL_START;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
/* Forward stepper */
|
|
case MOUSE_STEPPER_B:
|
|
case MOUSE_STEPPER_D:
|
|
switch (range->layout->grab_button)
|
|
{
|
|
case 1:
|
|
return invert ? GTK_SCROLL_STEP_BACKWARD : GTK_SCROLL_STEP_FORWARD;
|
|
break;
|
|
case 2:
|
|
return invert ? GTK_SCROLL_PAGE_BACKWARD : GTK_SCROLL_PAGE_FORWARD;
|
|
break;
|
|
case 3:
|
|
return invert ? GTK_SCROLL_START : GTK_SCROLL_END;
|
|
break;
|
|
}
|
|
break;
|
|
|
|
/* In the trough */
|
|
case MOUSE_TROUGH:
|
|
{
|
|
if (range->trough_click_forward)
|
|
return GTK_SCROLL_PAGE_FORWARD;
|
|
else
|
|
return GTK_SCROLL_PAGE_BACKWARD;
|
|
}
|
|
break;
|
|
|
|
case MOUSE_OUTSIDE:
|
|
case MOUSE_SLIDER:
|
|
case MOUSE_WIDGET:
|
|
break;
|
|
}
|
|
|
|
return GTK_SCROLL_NONE;
|
|
}
|
|
|
|
static gdouble
|
|
coord_to_value (GtkRange *range,
|
|
gint coord)
|
|
{
|
|
gdouble frac;
|
|
gdouble value;
|
|
gint trough_length;
|
|
gint trough_start;
|
|
gint slider_length;
|
|
gint trough_border;
|
|
gint trough_under_steppers;
|
|
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
trough_length = range->layout->trough.height;
|
|
trough_start = range->layout->trough.y;
|
|
slider_length = range->layout->slider.height;
|
|
}
|
|
else
|
|
{
|
|
trough_length = range->layout->trough.width;
|
|
trough_start = range->layout->trough.x;
|
|
slider_length = range->layout->slider.width;
|
|
}
|
|
|
|
gtk_range_get_props (range, NULL, NULL, NULL, &trough_border, NULL,
|
|
&trough_under_steppers, NULL, NULL);
|
|
|
|
if (! trough_under_steppers)
|
|
{
|
|
trough_start += trough_border;
|
|
trough_length -= 2 * trough_border;
|
|
}
|
|
|
|
if (trough_length == slider_length)
|
|
frac = 1.0;
|
|
else
|
|
frac = (MAX (0, coord - trough_start) /
|
|
(gdouble) (trough_length - slider_length));
|
|
|
|
if (should_invert (range))
|
|
frac = 1.0 - frac;
|
|
|
|
value = range->adjustment->lower + frac * (range->adjustment->upper -
|
|
range->adjustment->lower -
|
|
range->adjustment->page_size);
|
|
|
|
return value;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_key_press (GtkWidget *widget,
|
|
GdkEventKey *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
if (event->keyval == GDK_Escape &&
|
|
range->layout->grab_location != MOUSE_OUTSIDE)
|
|
{
|
|
stop_scrolling (range);
|
|
|
|
update_slider_position (range,
|
|
range->slide_initial_coordinate,
|
|
range->slide_initial_coordinate);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return GTK_WIDGET_CLASS (gtk_range_parent_class)->key_press_event (widget, event);
|
|
}
|
|
|
|
static gint
|
|
gtk_range_button_press (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
if (!gtk_widget_has_focus (widget))
|
|
gtk_widget_grab_focus (widget);
|
|
|
|
/* ignore presses when we're already doing something else. */
|
|
if (range->layout->grab_location != MOUSE_OUTSIDE)
|
|
return FALSE;
|
|
|
|
range->layout->mouse_x = event->x;
|
|
range->layout->mouse_y = event->y;
|
|
if (gtk_range_update_mouse_location (range))
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
if (range->layout->mouse_location == MOUSE_TROUGH &&
|
|
event->button == 1)
|
|
{
|
|
/* button 1 steps by page increment, as with button 2 on a stepper
|
|
*/
|
|
GtkScrollType scroll;
|
|
gdouble click_value;
|
|
|
|
click_value = coord_to_value (range,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ?
|
|
event->y : event->x);
|
|
|
|
range->trough_click_forward = click_value > range->adjustment->value;
|
|
range_grab_add (range, MOUSE_TROUGH, event->button);
|
|
|
|
scroll = range_get_scroll_for_grab (range);
|
|
|
|
gtk_range_add_step_timer (range, scroll);
|
|
|
|
return TRUE;
|
|
}
|
|
else if ((range->layout->mouse_location == MOUSE_STEPPER_A ||
|
|
range->layout->mouse_location == MOUSE_STEPPER_B ||
|
|
range->layout->mouse_location == MOUSE_STEPPER_C ||
|
|
range->layout->mouse_location == MOUSE_STEPPER_D) &&
|
|
(event->button == 1 || event->button == 2 || event->button == 3))
|
|
{
|
|
GdkRectangle *stepper_area;
|
|
GtkScrollType scroll;
|
|
|
|
range_grab_add (range, range->layout->mouse_location, event->button);
|
|
|
|
stepper_area = get_area (range, range->layout->mouse_location);
|
|
gtk_widget_queue_draw_area (widget,
|
|
widget->allocation.x + stepper_area->x,
|
|
widget->allocation.y + stepper_area->y,
|
|
stepper_area->width,
|
|
stepper_area->height);
|
|
|
|
scroll = range_get_scroll_for_grab (range);
|
|
if (scroll != GTK_SCROLL_NONE)
|
|
gtk_range_add_step_timer (range, scroll);
|
|
|
|
return TRUE;
|
|
}
|
|
else if ((range->layout->mouse_location == MOUSE_TROUGH &&
|
|
event->button == 2) ||
|
|
range->layout->mouse_location == MOUSE_SLIDER)
|
|
{
|
|
gboolean need_value_update = FALSE;
|
|
gboolean activate_slider;
|
|
|
|
/* Any button can be used to drag the slider, but you can start
|
|
* dragging the slider with a trough click using button 2;
|
|
* On button 2 press, we warp the slider to mouse position,
|
|
* then begin the slider drag.
|
|
*/
|
|
if (event->button == 2)
|
|
{
|
|
gdouble slider_low_value, slider_high_value, new_value;
|
|
|
|
slider_high_value =
|
|
coord_to_value (range,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ?
|
|
event->y : event->x);
|
|
slider_low_value =
|
|
coord_to_value (range,
|
|
range->orientation == GTK_ORIENTATION_VERTICAL ?
|
|
event->y - range->layout->slider.height :
|
|
event->x - range->layout->slider.width);
|
|
|
|
/* compute new value for warped slider */
|
|
new_value = slider_low_value + (slider_high_value - slider_low_value) / 2;
|
|
|
|
/* recalc slider, so we can set slide_initial_slider_position
|
|
* properly
|
|
*/
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, new_value);
|
|
|
|
/* defer adjustment updates to update_slider_position() in order
|
|
* to keep pixel quantisation
|
|
*/
|
|
need_value_update = TRUE;
|
|
}
|
|
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
range->slide_initial_slider_position = range->layout->slider.y;
|
|
range->slide_initial_coordinate = event->y;
|
|
}
|
|
else
|
|
{
|
|
range->slide_initial_slider_position = range->layout->slider.x;
|
|
range->slide_initial_coordinate = event->x;
|
|
}
|
|
|
|
range_grab_add (range, MOUSE_SLIDER, event->button);
|
|
|
|
gtk_widget_style_get (widget, "activate-slider", &activate_slider, NULL);
|
|
|
|
/* force a redraw, if the active slider is drawn differently to the
|
|
* prelight one
|
|
*/
|
|
if (activate_slider)
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
if (need_value_update)
|
|
update_slider_position (range, event->x, event->y);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/* During a slide, move the slider as required given new mouse position */
|
|
static void
|
|
update_slider_position (GtkRange *range,
|
|
gint mouse_x,
|
|
gint mouse_y)
|
|
{
|
|
gint delta;
|
|
gint c;
|
|
gdouble new_value;
|
|
gboolean handled;
|
|
gdouble next_value;
|
|
gdouble mark_value;
|
|
gdouble mark_delta;
|
|
gint i;
|
|
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
delta = mouse_y - range->slide_initial_coordinate;
|
|
else
|
|
delta = mouse_x - range->slide_initial_coordinate;
|
|
|
|
c = range->slide_initial_slider_position + delta;
|
|
|
|
new_value = coord_to_value (range, c);
|
|
next_value = coord_to_value (range, c + 1);
|
|
mark_delta = fabs (next_value - new_value);
|
|
|
|
for (i = 0; i < range->layout->n_marks; i++)
|
|
{
|
|
mark_value = range->layout->marks[i];
|
|
|
|
if (fabs (range->adjustment->value - mark_value) < 3 * mark_delta)
|
|
{
|
|
if (fabs (new_value - mark_value) < (range->slider_end - range->slider_start) * 0.5 * mark_delta)
|
|
{
|
|
new_value = mark_value;
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_JUMP, new_value,
|
|
&handled);
|
|
}
|
|
|
|
static void
|
|
stop_scrolling (GtkRange *range)
|
|
{
|
|
range_grab_remove (range);
|
|
gtk_range_remove_step_timer (range);
|
|
/* Flush any pending discontinuous/delayed updates */
|
|
gtk_range_update_value (range);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_grab_broken (GtkWidget *widget,
|
|
GdkEventGrabBroken *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
if (range->layout->grab_location != MOUSE_OUTSIDE)
|
|
{
|
|
if (range->layout->grab_location == MOUSE_SLIDER)
|
|
update_slider_position (range, range->layout->mouse_x, range->layout->mouse_y);
|
|
|
|
stop_scrolling (range);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static gint
|
|
gtk_range_button_release (GtkWidget *widget,
|
|
GdkEventButton *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
if (event->window == range->event_window)
|
|
{
|
|
range->layout->mouse_x = event->x;
|
|
range->layout->mouse_y = event->y;
|
|
}
|
|
else
|
|
{
|
|
gdk_window_get_pointer (range->event_window,
|
|
&range->layout->mouse_x,
|
|
&range->layout->mouse_y,
|
|
NULL);
|
|
}
|
|
|
|
if (range->layout->grab_button == event->button)
|
|
{
|
|
if (range->layout->grab_location == MOUSE_SLIDER)
|
|
update_slider_position (range, range->layout->mouse_x, range->layout->mouse_y);
|
|
|
|
stop_scrolling (range);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
/**
|
|
* _gtk_range_get_wheel_delta:
|
|
* @range: a #GtkRange
|
|
* @direction: A #GdkScrollDirection
|
|
*
|
|
* Returns a good step value for the mouse wheel.
|
|
*
|
|
* Return value: A good step value for the mouse wheel.
|
|
*
|
|
* Since: 2.4
|
|
**/
|
|
gdouble
|
|
_gtk_range_get_wheel_delta (GtkRange *range,
|
|
GdkScrollDirection direction)
|
|
{
|
|
GtkAdjustment *adj = range->adjustment;
|
|
gdouble delta;
|
|
|
|
if (GTK_IS_SCROLLBAR (range))
|
|
delta = pow (adj->page_size, 2.0 / 3.0);
|
|
else
|
|
delta = adj->step_increment * 2;
|
|
|
|
if (direction == GDK_SCROLL_UP ||
|
|
direction == GDK_SCROLL_LEFT)
|
|
delta = - delta;
|
|
|
|
if (range->inverted)
|
|
delta = - delta;
|
|
|
|
return delta;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_scroll_event (GtkWidget *widget,
|
|
GdkEventScroll *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
if (gtk_widget_get_realized (widget))
|
|
{
|
|
GtkAdjustment *adj = GTK_RANGE (range)->adjustment;
|
|
gdouble delta;
|
|
gboolean handled;
|
|
|
|
delta = _gtk_range_get_wheel_delta (range, event->direction);
|
|
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_JUMP, adj->value + delta,
|
|
&handled);
|
|
|
|
/* Policy DELAYED makes sense with scroll events,
|
|
* but DISCONTINUOUS doesn't, so we update immediately
|
|
* for DISCONTINUOUS
|
|
*/
|
|
if (range->update_policy == GTK_UPDATE_DISCONTINUOUS)
|
|
gtk_range_update_value (range);
|
|
}
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_motion_notify (GtkWidget *widget,
|
|
GdkEventMotion *event)
|
|
{
|
|
GtkRange *range;
|
|
|
|
range = GTK_RANGE (widget);
|
|
|
|
gdk_event_request_motions (event);
|
|
|
|
range->layout->mouse_x = event->x;
|
|
range->layout->mouse_y = event->y;
|
|
|
|
if (gtk_range_update_mouse_location (range))
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
if (range->layout->grab_location == MOUSE_SLIDER)
|
|
update_slider_position (range, event->x, event->y);
|
|
|
|
/* We handled the event if the mouse was in the range_rect */
|
|
return range->layout->mouse_location != MOUSE_OUTSIDE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_enter_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
range->layout->mouse_x = event->x;
|
|
range->layout->mouse_y = event->y;
|
|
|
|
if (gtk_range_update_mouse_location (range))
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_leave_notify (GtkWidget *widget,
|
|
GdkEventCrossing *event)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
range->layout->mouse_x = -1;
|
|
range->layout->mouse_y = -1;
|
|
|
|
if (gtk_range_update_mouse_location (range))
|
|
gtk_widget_queue_draw (widget);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_grab_notify (GtkWidget *widget,
|
|
gboolean was_grabbed)
|
|
{
|
|
if (!was_grabbed)
|
|
stop_scrolling (GTK_RANGE (widget));
|
|
}
|
|
|
|
static void
|
|
gtk_range_state_changed (GtkWidget *widget,
|
|
GtkStateType previous_state)
|
|
{
|
|
if (!gtk_widget_is_sensitive (widget))
|
|
stop_scrolling (GTK_RANGE (widget));
|
|
}
|
|
|
|
#define check_rectangle(rectangle1, rectangle2) \
|
|
{ \
|
|
if (rectangle1.x != rectangle2.x) return TRUE; \
|
|
if (rectangle1.y != rectangle2.y) return TRUE; \
|
|
if (rectangle1.width != rectangle2.width) return TRUE; \
|
|
if (rectangle1.height != rectangle2.height) return TRUE; \
|
|
}
|
|
|
|
static gboolean
|
|
layout_changed (GtkRangeLayout *layout1,
|
|
GtkRangeLayout *layout2)
|
|
{
|
|
check_rectangle (layout1->slider, layout2->slider);
|
|
check_rectangle (layout1->trough, layout2->trough);
|
|
check_rectangle (layout1->stepper_a, layout2->stepper_a);
|
|
check_rectangle (layout1->stepper_d, layout2->stepper_d);
|
|
check_rectangle (layout1->stepper_b, layout2->stepper_b);
|
|
check_rectangle (layout1->stepper_c, layout2->stepper_c);
|
|
|
|
if (layout1->upper_sensitive != layout2->upper_sensitive) return TRUE;
|
|
if (layout1->lower_sensitive != layout2->lower_sensitive) return TRUE;
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_adjustment_changed (GtkAdjustment *adjustment,
|
|
gpointer data)
|
|
{
|
|
GtkRange *range = GTK_RANGE (data);
|
|
/* create a copy of the layout */
|
|
GtkRangeLayout layout = *range->layout;
|
|
|
|
range->layout->recalc_marks = TRUE;
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
/* now check whether the layout changed */
|
|
if (layout_changed (range->layout, &layout))
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
|
|
/* Note that we don't round off to range->round_digits here.
|
|
* that's because it's really broken to change a value
|
|
* in response to a change signal on that value; round_digits
|
|
* is therefore defined to be a filter on what the GtkRange
|
|
* can input into the adjustment, not a filter that the GtkRange
|
|
* will enforce on the adjustment.
|
|
*/
|
|
}
|
|
|
|
static gboolean
|
|
force_repaint (gpointer data)
|
|
{
|
|
GtkRange *range = GTK_RANGE (data);
|
|
|
|
range->layout->repaint_id = 0;
|
|
if (gtk_widget_is_drawable (GTK_WIDGET (range)))
|
|
gdk_window_process_updates (GTK_WIDGET (range)->window, FALSE);
|
|
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_adjustment_value_changed (GtkAdjustment *adjustment,
|
|
gpointer data)
|
|
{
|
|
GtkRange *range = GTK_RANGE (data);
|
|
/* create a copy of the layout */
|
|
GtkRangeLayout layout = *range->layout;
|
|
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->adjustment->value);
|
|
|
|
/* now check whether the layout changed */
|
|
if (layout_changed (range->layout, &layout))
|
|
{
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
/* setup a timer to ensure the range isn't lagging too much behind the scroll position */
|
|
if (!range->layout->repaint_id)
|
|
range->layout->repaint_id = gdk_threads_add_timeout_full (GDK_PRIORITY_EVENTS, 181, force_repaint, range, NULL);
|
|
}
|
|
|
|
/* Note that we don't round off to range->round_digits here.
|
|
* that's because it's really broken to change a value
|
|
* in response to a change signal on that value; round_digits
|
|
* is therefore defined to be a filter on what the GtkRange
|
|
* can input into the adjustment, not a filter that the GtkRange
|
|
* will enforce on the adjustment.
|
|
*/
|
|
|
|
g_signal_emit (range, signals[VALUE_CHANGED], 0);
|
|
}
|
|
|
|
static void
|
|
gtk_range_style_set (GtkWidget *widget,
|
|
GtkStyle *previous_style)
|
|
{
|
|
GtkRange *range = GTK_RANGE (widget);
|
|
|
|
range->need_recalc = TRUE;
|
|
|
|
GTK_WIDGET_CLASS (gtk_range_parent_class)->style_set (widget, previous_style);
|
|
}
|
|
|
|
static void
|
|
apply_marks (GtkRange *range,
|
|
gdouble oldval,
|
|
gdouble *newval)
|
|
{
|
|
gint i;
|
|
gdouble mark;
|
|
|
|
for (i = 0; i < range->layout->n_marks; i++)
|
|
{
|
|
mark = range->layout->marks[i];
|
|
if ((oldval < mark && mark < *newval) ||
|
|
(oldval > mark && mark > *newval))
|
|
{
|
|
*newval = mark;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
step_back (GtkRange *range)
|
|
{
|
|
gdouble newval;
|
|
gboolean handled;
|
|
|
|
newval = range->adjustment->value - range->adjustment->step_increment;
|
|
apply_marks (range, range->adjustment->value, &newval);
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_STEP_BACKWARD, newval, &handled);
|
|
}
|
|
|
|
static void
|
|
step_forward (GtkRange *range)
|
|
{
|
|
gdouble newval;
|
|
gboolean handled;
|
|
|
|
newval = range->adjustment->value + range->adjustment->step_increment;
|
|
apply_marks (range, range->adjustment->value, &newval);
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_STEP_FORWARD, newval, &handled);
|
|
}
|
|
|
|
|
|
static void
|
|
page_back (GtkRange *range)
|
|
{
|
|
gdouble newval;
|
|
gboolean handled;
|
|
|
|
newval = range->adjustment->value - range->adjustment->page_increment;
|
|
apply_marks (range, range->adjustment->value, &newval);
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_PAGE_BACKWARD, newval, &handled);
|
|
}
|
|
|
|
static void
|
|
page_forward (GtkRange *range)
|
|
{
|
|
gdouble newval;
|
|
gboolean handled;
|
|
|
|
newval = range->adjustment->value + range->adjustment->page_increment;
|
|
apply_marks (range, range->adjustment->value, &newval);
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_PAGE_FORWARD, newval, &handled);
|
|
}
|
|
|
|
static void
|
|
scroll_begin (GtkRange *range)
|
|
{
|
|
gboolean handled;
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0,
|
|
GTK_SCROLL_START, range->adjustment->lower,
|
|
&handled);
|
|
}
|
|
|
|
static void
|
|
scroll_end (GtkRange *range)
|
|
{
|
|
gdouble newval;
|
|
gboolean handled;
|
|
|
|
newval = range->adjustment->upper - range->adjustment->page_size;
|
|
g_signal_emit (range, signals[CHANGE_VALUE], 0, GTK_SCROLL_END, newval,
|
|
&handled);
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_scroll (GtkRange *range,
|
|
GtkScrollType scroll)
|
|
{
|
|
gdouble old_value = range->adjustment->value;
|
|
|
|
switch (scroll)
|
|
{
|
|
case GTK_SCROLL_STEP_LEFT:
|
|
if (should_invert (range))
|
|
step_forward (range);
|
|
else
|
|
step_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_UP:
|
|
if (should_invert (range))
|
|
step_forward (range);
|
|
else
|
|
step_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_RIGHT:
|
|
if (should_invert (range))
|
|
step_back (range);
|
|
else
|
|
step_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_DOWN:
|
|
if (should_invert (range))
|
|
step_back (range);
|
|
else
|
|
step_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_BACKWARD:
|
|
step_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_STEP_FORWARD:
|
|
step_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_LEFT:
|
|
if (should_invert (range))
|
|
page_forward (range);
|
|
else
|
|
page_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_UP:
|
|
if (should_invert (range))
|
|
page_forward (range);
|
|
else
|
|
page_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_RIGHT:
|
|
if (should_invert (range))
|
|
page_back (range);
|
|
else
|
|
page_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_DOWN:
|
|
if (should_invert (range))
|
|
page_back (range);
|
|
else
|
|
page_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_BACKWARD:
|
|
page_back (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_PAGE_FORWARD:
|
|
page_forward (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_START:
|
|
scroll_begin (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_END:
|
|
scroll_end (range);
|
|
break;
|
|
|
|
case GTK_SCROLL_JUMP:
|
|
/* Used by CList, range doesn't use it. */
|
|
break;
|
|
|
|
case GTK_SCROLL_NONE:
|
|
break;
|
|
}
|
|
|
|
return range->adjustment->value != old_value;
|
|
}
|
|
|
|
static void
|
|
gtk_range_move_slider (GtkRange *range,
|
|
GtkScrollType scroll)
|
|
{
|
|
gboolean cursor_only;
|
|
|
|
g_object_get (gtk_widget_get_settings (GTK_WIDGET (range)),
|
|
"gtk-keynav-cursor-only", &cursor_only,
|
|
NULL);
|
|
|
|
if (cursor_only)
|
|
{
|
|
GtkWidget *toplevel = gtk_widget_get_toplevel (GTK_WIDGET (range));
|
|
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
{
|
|
if (scroll == GTK_SCROLL_STEP_UP ||
|
|
scroll == GTK_SCROLL_STEP_DOWN)
|
|
{
|
|
if (toplevel)
|
|
gtk_widget_child_focus (toplevel,
|
|
scroll == GTK_SCROLL_STEP_UP ?
|
|
GTK_DIR_UP : GTK_DIR_DOWN);
|
|
return;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
if (scroll == GTK_SCROLL_STEP_LEFT ||
|
|
scroll == GTK_SCROLL_STEP_RIGHT)
|
|
{
|
|
if (toplevel)
|
|
gtk_widget_child_focus (toplevel,
|
|
scroll == GTK_SCROLL_STEP_LEFT ?
|
|
GTK_DIR_LEFT : GTK_DIR_RIGHT);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (! gtk_range_scroll (range, scroll))
|
|
gtk_widget_error_bell (GTK_WIDGET (range));
|
|
|
|
/* Policy DELAYED makes sense with key events,
|
|
* but DISCONTINUOUS doesn't, so we update immediately
|
|
* for DISCONTINUOUS
|
|
*/
|
|
if (range->update_policy == GTK_UPDATE_DISCONTINUOUS)
|
|
gtk_range_update_value (range);
|
|
}
|
|
|
|
static void
|
|
gtk_range_get_props (GtkRange *range,
|
|
gint *slider_width,
|
|
gint *stepper_size,
|
|
gint *focus_width,
|
|
gint *trough_border,
|
|
gint *stepper_spacing,
|
|
gboolean *trough_under_steppers,
|
|
gint *arrow_displacement_x,
|
|
gint *arrow_displacement_y)
|
|
{
|
|
GtkWidget *widget = GTK_WIDGET (range);
|
|
gint tmp_slider_width, tmp_stepper_size, tmp_focus_width, tmp_trough_border;
|
|
gint tmp_stepper_spacing, tmp_trough_under_steppers;
|
|
gint tmp_arrow_displacement_x, tmp_arrow_displacement_y;
|
|
|
|
gtk_widget_style_get (widget,
|
|
"slider-width", &tmp_slider_width,
|
|
"trough-border", &tmp_trough_border,
|
|
"stepper-size", &tmp_stepper_size,
|
|
"stepper-spacing", &tmp_stepper_spacing,
|
|
"trough-under-steppers", &tmp_trough_under_steppers,
|
|
"arrow-displacement-x", &tmp_arrow_displacement_x,
|
|
"arrow-displacement-y", &tmp_arrow_displacement_y,
|
|
NULL);
|
|
|
|
if (tmp_stepper_spacing > 0)
|
|
tmp_trough_under_steppers = FALSE;
|
|
|
|
if (gtk_widget_get_can_focus (GTK_WIDGET (range)))
|
|
{
|
|
gint focus_line_width;
|
|
gint focus_padding;
|
|
|
|
gtk_widget_style_get (GTK_WIDGET (range),
|
|
"focus-line-width", &focus_line_width,
|
|
"focus-padding", &focus_padding,
|
|
NULL);
|
|
|
|
tmp_focus_width = focus_line_width + focus_padding;
|
|
}
|
|
else
|
|
{
|
|
tmp_focus_width = 0;
|
|
}
|
|
|
|
if (slider_width)
|
|
*slider_width = tmp_slider_width;
|
|
|
|
if (focus_width)
|
|
*focus_width = tmp_focus_width;
|
|
|
|
if (trough_border)
|
|
*trough_border = tmp_trough_border;
|
|
|
|
if (stepper_size)
|
|
*stepper_size = tmp_stepper_size;
|
|
|
|
if (stepper_spacing)
|
|
*stepper_spacing = tmp_stepper_spacing;
|
|
|
|
if (trough_under_steppers)
|
|
*trough_under_steppers = tmp_trough_under_steppers;
|
|
|
|
if (arrow_displacement_x)
|
|
*arrow_displacement_x = tmp_arrow_displacement_x;
|
|
|
|
if (arrow_displacement_y)
|
|
*arrow_displacement_y = tmp_arrow_displacement_y;
|
|
}
|
|
|
|
#define POINT_IN_RECT(xcoord, ycoord, rect) \
|
|
((xcoord) >= (rect).x && \
|
|
(xcoord) < ((rect).x + (rect).width) && \
|
|
(ycoord) >= (rect).y && \
|
|
(ycoord) < ((rect).y + (rect).height))
|
|
|
|
/* Update mouse location, return TRUE if it changes */
|
|
static gboolean
|
|
gtk_range_update_mouse_location (GtkRange *range)
|
|
{
|
|
gint x, y;
|
|
MouseLocation old;
|
|
GtkWidget *widget;
|
|
|
|
widget = GTK_WIDGET (range);
|
|
|
|
old = range->layout->mouse_location;
|
|
|
|
x = range->layout->mouse_x;
|
|
y = range->layout->mouse_y;
|
|
|
|
if (range->layout->grab_location != MOUSE_OUTSIDE)
|
|
range->layout->mouse_location = range->layout->grab_location;
|
|
else if (POINT_IN_RECT (x, y, range->layout->stepper_a))
|
|
range->layout->mouse_location = MOUSE_STEPPER_A;
|
|
else if (POINT_IN_RECT (x, y, range->layout->stepper_b))
|
|
range->layout->mouse_location = MOUSE_STEPPER_B;
|
|
else if (POINT_IN_RECT (x, y, range->layout->stepper_c))
|
|
range->layout->mouse_location = MOUSE_STEPPER_C;
|
|
else if (POINT_IN_RECT (x, y, range->layout->stepper_d))
|
|
range->layout->mouse_location = MOUSE_STEPPER_D;
|
|
else if (POINT_IN_RECT (x, y, range->layout->slider))
|
|
range->layout->mouse_location = MOUSE_SLIDER;
|
|
else if (POINT_IN_RECT (x, y, range->layout->trough))
|
|
range->layout->mouse_location = MOUSE_TROUGH;
|
|
else if (POINT_IN_RECT (x, y, widget->allocation))
|
|
range->layout->mouse_location = MOUSE_WIDGET;
|
|
else
|
|
range->layout->mouse_location = MOUSE_OUTSIDE;
|
|
|
|
return old != range->layout->mouse_location;
|
|
}
|
|
|
|
/* Clamp rect, border inside widget->allocation, such that we prefer
|
|
* to take space from border not rect in all directions, and prefer to
|
|
* give space to border over rect in one direction.
|
|
*/
|
|
static void
|
|
clamp_dimensions (GtkWidget *widget,
|
|
GdkRectangle *rect,
|
|
GtkBorder *border,
|
|
gboolean border_expands_horizontally)
|
|
{
|
|
gint extra, shortage;
|
|
|
|
g_return_if_fail (rect->x == 0);
|
|
g_return_if_fail (rect->y == 0);
|
|
g_return_if_fail (rect->width >= 0);
|
|
g_return_if_fail (rect->height >= 0);
|
|
|
|
/* Width */
|
|
|
|
extra = widget->allocation.width - border->left - border->right - rect->width;
|
|
if (extra > 0)
|
|
{
|
|
if (border_expands_horizontally)
|
|
{
|
|
border->left += extra / 2;
|
|
border->right += extra / 2 + extra % 2;
|
|
}
|
|
else
|
|
{
|
|
rect->width += extra;
|
|
}
|
|
}
|
|
|
|
/* See if we can fit rect, if not kill the border */
|
|
shortage = rect->width - widget->allocation.width;
|
|
if (shortage > 0)
|
|
{
|
|
rect->width = widget->allocation.width;
|
|
/* lose the border */
|
|
border->left = 0;
|
|
border->right = 0;
|
|
}
|
|
else
|
|
{
|
|
/* See if we can fit rect with borders */
|
|
shortage = rect->width + border->left + border->right -
|
|
widget->allocation.width;
|
|
if (shortage > 0)
|
|
{
|
|
/* Shrink borders */
|
|
border->left -= shortage / 2;
|
|
border->right -= shortage / 2 + shortage % 2;
|
|
}
|
|
}
|
|
|
|
/* Height */
|
|
|
|
extra = widget->allocation.height - border->top - border->bottom - rect->height;
|
|
if (extra > 0)
|
|
{
|
|
if (border_expands_horizontally)
|
|
{
|
|
/* don't expand border vertically */
|
|
rect->height += extra;
|
|
}
|
|
else
|
|
{
|
|
border->top += extra / 2;
|
|
border->bottom += extra / 2 + extra % 2;
|
|
}
|
|
}
|
|
|
|
/* See if we can fit rect, if not kill the border */
|
|
shortage = rect->height - widget->allocation.height;
|
|
if (shortage > 0)
|
|
{
|
|
rect->height = widget->allocation.height;
|
|
/* lose the border */
|
|
border->top = 0;
|
|
border->bottom = 0;
|
|
}
|
|
else
|
|
{
|
|
/* See if we can fit rect with borders */
|
|
shortage = rect->height + border->top + border->bottom -
|
|
widget->allocation.height;
|
|
if (shortage > 0)
|
|
{
|
|
/* Shrink borders */
|
|
border->top -= shortage / 2;
|
|
border->bottom -= shortage / 2 + shortage % 2;
|
|
}
|
|
}
|
|
}
|
|
|
|
static void
|
|
gtk_range_calc_request (GtkRange *range,
|
|
gint slider_width,
|
|
gint stepper_size,
|
|
gint focus_width,
|
|
gint trough_border,
|
|
gint stepper_spacing,
|
|
GdkRectangle *range_rect,
|
|
GtkBorder *border,
|
|
gint *n_steppers_p,
|
|
gboolean *has_steppers_ab,
|
|
gboolean *has_steppers_cd,
|
|
gint *slider_length_p)
|
|
{
|
|
gint slider_length;
|
|
gint n_steppers;
|
|
gint n_steppers_ab;
|
|
gint n_steppers_cd;
|
|
|
|
border->left = 0;
|
|
border->right = 0;
|
|
border->top = 0;
|
|
border->bottom = 0;
|
|
|
|
if (GTK_RANGE_GET_CLASS (range)->get_range_border)
|
|
GTK_RANGE_GET_CLASS (range)->get_range_border (range, border);
|
|
|
|
n_steppers_ab = 0;
|
|
n_steppers_cd = 0;
|
|
|
|
if (range->has_stepper_a)
|
|
n_steppers_ab += 1;
|
|
if (range->has_stepper_b)
|
|
n_steppers_ab += 1;
|
|
if (range->has_stepper_c)
|
|
n_steppers_cd += 1;
|
|
if (range->has_stepper_d)
|
|
n_steppers_cd += 1;
|
|
|
|
n_steppers = n_steppers_ab + n_steppers_cd;
|
|
|
|
slider_length = range->min_slider_size;
|
|
|
|
range_rect->x = 0;
|
|
range_rect->y = 0;
|
|
|
|
/* We never expand to fill available space in the small dimension
|
|
* (i.e. vertical scrollbars are always a fixed width)
|
|
*/
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
range_rect->width = (focus_width + trough_border) * 2 + slider_width;
|
|
range_rect->height = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
|
|
|
|
if (n_steppers_ab > 0)
|
|
range_rect->height += stepper_spacing;
|
|
|
|
if (n_steppers_cd > 0)
|
|
range_rect->height += stepper_spacing;
|
|
}
|
|
else
|
|
{
|
|
range_rect->width = stepper_size * n_steppers + (focus_width + trough_border) * 2 + slider_length;
|
|
range_rect->height = (focus_width + trough_border) * 2 + slider_width;
|
|
|
|
if (n_steppers_ab > 0)
|
|
range_rect->width += stepper_spacing;
|
|
|
|
if (n_steppers_cd > 0)
|
|
range_rect->width += stepper_spacing;
|
|
}
|
|
|
|
if (n_steppers_p)
|
|
*n_steppers_p = n_steppers;
|
|
|
|
if (has_steppers_ab)
|
|
*has_steppers_ab = (n_steppers_ab > 0);
|
|
|
|
if (has_steppers_cd)
|
|
*has_steppers_cd = (n_steppers_cd > 0);
|
|
|
|
if (slider_length_p)
|
|
*slider_length_p = slider_length;
|
|
}
|
|
|
|
static void
|
|
gtk_range_calc_layout (GtkRange *range,
|
|
gdouble adjustment_value)
|
|
{
|
|
gint slider_width, stepper_size, focus_width, trough_border, stepper_spacing;
|
|
gint slider_length;
|
|
GtkBorder border;
|
|
gint n_steppers;
|
|
gboolean has_steppers_ab;
|
|
gboolean has_steppers_cd;
|
|
gboolean trough_under_steppers;
|
|
GdkRectangle range_rect;
|
|
GtkRangeLayout *layout;
|
|
GtkWidget *widget;
|
|
|
|
if (!range->need_recalc)
|
|
return;
|
|
|
|
/* If we have a too-small allocation, we prefer the steppers over
|
|
* the trough/slider, probably the steppers are a more useful
|
|
* feature in small spaces.
|
|
*
|
|
* Also, we prefer to draw the range itself rather than the border
|
|
* areas if there's a conflict, since the borders will be decoration
|
|
* not controls. Though this depends on subclasses cooperating by
|
|
* not drawing on range->range_rect.
|
|
*/
|
|
|
|
widget = GTK_WIDGET (range);
|
|
layout = range->layout;
|
|
|
|
gtk_range_get_props (range,
|
|
&slider_width, &stepper_size,
|
|
&focus_width, &trough_border,
|
|
&stepper_spacing, &trough_under_steppers,
|
|
NULL, NULL);
|
|
|
|
gtk_range_calc_request (range,
|
|
slider_width, stepper_size,
|
|
focus_width, trough_border, stepper_spacing,
|
|
&range_rect, &border, &n_steppers,
|
|
&has_steppers_ab, &has_steppers_cd, &slider_length);
|
|
|
|
/* We never expand to fill available space in the small dimension
|
|
* (i.e. vertical scrollbars are always a fixed width)
|
|
*/
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
clamp_dimensions (widget, &range_rect, &border, TRUE);
|
|
}
|
|
else
|
|
{
|
|
clamp_dimensions (widget, &range_rect, &border, FALSE);
|
|
}
|
|
|
|
range_rect.x = border.left;
|
|
range_rect.y = border.top;
|
|
|
|
range->range_rect = range_rect;
|
|
|
|
if (range->orientation == GTK_ORIENTATION_VERTICAL)
|
|
{
|
|
gint stepper_width, stepper_height;
|
|
|
|
/* Steppers are the width of the range, and stepper_size in
|
|
* height, or if we don't have enough height, divided equally
|
|
* among available space.
|
|
*/
|
|
stepper_width = range_rect.width - focus_width * 2;
|
|
|
|
if (trough_under_steppers)
|
|
stepper_width -= trough_border * 2;
|
|
|
|
if (stepper_width < 1)
|
|
stepper_width = range_rect.width; /* screw the trough border */
|
|
|
|
if (n_steppers == 0)
|
|
stepper_height = 0; /* avoid divide by n_steppers */
|
|
else
|
|
stepper_height = MIN (stepper_size, (range_rect.height / n_steppers));
|
|
|
|
/* Stepper A */
|
|
|
|
layout->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
|
|
layout->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
|
|
|
|
if (range->has_stepper_a)
|
|
{
|
|
layout->stepper_a.width = stepper_width;
|
|
layout->stepper_a.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_a.width = 0;
|
|
layout->stepper_a.height = 0;
|
|
}
|
|
|
|
/* Stepper B */
|
|
|
|
layout->stepper_b.x = layout->stepper_a.x;
|
|
layout->stepper_b.y = layout->stepper_a.y + layout->stepper_a.height;
|
|
|
|
if (range->has_stepper_b)
|
|
{
|
|
layout->stepper_b.width = stepper_width;
|
|
layout->stepper_b.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_b.width = 0;
|
|
layout->stepper_b.height = 0;
|
|
}
|
|
|
|
/* Stepper D */
|
|
|
|
if (range->has_stepper_d)
|
|
{
|
|
layout->stepper_d.width = stepper_width;
|
|
layout->stepper_d.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_d.width = 0;
|
|
layout->stepper_d.height = 0;
|
|
}
|
|
|
|
layout->stepper_d.x = layout->stepper_a.x;
|
|
layout->stepper_d.y = range_rect.y + range_rect.height - layout->stepper_d.height - focus_width - trough_border * trough_under_steppers;
|
|
|
|
/* Stepper C */
|
|
|
|
if (range->has_stepper_c)
|
|
{
|
|
layout->stepper_c.width = stepper_width;
|
|
layout->stepper_c.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_c.width = 0;
|
|
layout->stepper_c.height = 0;
|
|
}
|
|
|
|
layout->stepper_c.x = layout->stepper_a.x;
|
|
layout->stepper_c.y = layout->stepper_d.y - layout->stepper_c.height;
|
|
|
|
/* Now the trough is the remaining space between steppers B and C,
|
|
* if any, minus spacing
|
|
*/
|
|
layout->trough.x = range_rect.x;
|
|
layout->trough.y = layout->stepper_b.y + layout->stepper_b.height + stepper_spacing * has_steppers_ab;
|
|
layout->trough.width = range_rect.width;
|
|
layout->trough.height = layout->stepper_c.y - layout->trough.y - stepper_spacing * has_steppers_cd;
|
|
|
|
/* Slider fits into the trough, with stepper_spacing on either side,
|
|
* and the size/position based on the adjustment or fixed, depending.
|
|
*/
|
|
layout->slider.x = layout->trough.x + focus_width + trough_border;
|
|
layout->slider.width = layout->trough.width - (focus_width + trough_border) * 2;
|
|
|
|
/* Compute slider position/length */
|
|
{
|
|
gint y, bottom, top, height;
|
|
|
|
top = layout->trough.y;
|
|
bottom = layout->trough.y + layout->trough.height;
|
|
|
|
if (! trough_under_steppers)
|
|
{
|
|
top += trough_border;
|
|
bottom -= trough_border;
|
|
}
|
|
|
|
/* slider height is the fraction (page_size /
|
|
* total_adjustment_range) times the trough height in pixels
|
|
*/
|
|
|
|
if (range->adjustment->upper - range->adjustment->lower != 0)
|
|
height = ((bottom - top) * (range->adjustment->page_size /
|
|
(range->adjustment->upper - range->adjustment->lower)));
|
|
else
|
|
height = range->min_slider_size;
|
|
|
|
if (height < range->min_slider_size ||
|
|
range->slider_size_fixed)
|
|
height = range->min_slider_size;
|
|
|
|
height = MIN (height, layout->trough.height);
|
|
|
|
y = top;
|
|
|
|
if (range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size != 0)
|
|
y += (bottom - top - height) * ((adjustment_value - range->adjustment->lower) /
|
|
(range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size));
|
|
|
|
y = CLAMP (y, top, bottom);
|
|
|
|
if (should_invert (range))
|
|
y = bottom - (y - top + height);
|
|
|
|
layout->slider.y = y;
|
|
layout->slider.height = height;
|
|
|
|
/* These are publically exported */
|
|
range->slider_start = layout->slider.y;
|
|
range->slider_end = layout->slider.y + layout->slider.height;
|
|
}
|
|
}
|
|
else
|
|
{
|
|
gint stepper_width, stepper_height;
|
|
|
|
/* Steppers are the height of the range, and stepper_size in
|
|
* width, or if we don't have enough width, divided equally
|
|
* among available space.
|
|
*/
|
|
stepper_height = range_rect.height + focus_width * 2;
|
|
|
|
if (trough_under_steppers)
|
|
stepper_height -= trough_border * 2;
|
|
|
|
if (stepper_height < 1)
|
|
stepper_height = range_rect.height; /* screw the trough border */
|
|
|
|
if (n_steppers == 0)
|
|
stepper_width = 0; /* avoid divide by n_steppers */
|
|
else
|
|
stepper_width = MIN (stepper_size, (range_rect.width / n_steppers));
|
|
|
|
/* Stepper A */
|
|
|
|
layout->stepper_a.x = range_rect.x + focus_width + trough_border * trough_under_steppers;
|
|
layout->stepper_a.y = range_rect.y + focus_width + trough_border * trough_under_steppers;
|
|
|
|
if (range->has_stepper_a)
|
|
{
|
|
layout->stepper_a.width = stepper_width;
|
|
layout->stepper_a.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_a.width = 0;
|
|
layout->stepper_a.height = 0;
|
|
}
|
|
|
|
/* Stepper B */
|
|
|
|
layout->stepper_b.x = layout->stepper_a.x + layout->stepper_a.width;
|
|
layout->stepper_b.y = layout->stepper_a.y;
|
|
|
|
if (range->has_stepper_b)
|
|
{
|
|
layout->stepper_b.width = stepper_width;
|
|
layout->stepper_b.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_b.width = 0;
|
|
layout->stepper_b.height = 0;
|
|
}
|
|
|
|
/* Stepper D */
|
|
|
|
if (range->has_stepper_d)
|
|
{
|
|
layout->stepper_d.width = stepper_width;
|
|
layout->stepper_d.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_d.width = 0;
|
|
layout->stepper_d.height = 0;
|
|
}
|
|
|
|
layout->stepper_d.x = range_rect.x + range_rect.width - layout->stepper_d.width - focus_width - trough_border * trough_under_steppers;
|
|
layout->stepper_d.y = layout->stepper_a.y;
|
|
|
|
|
|
/* Stepper C */
|
|
|
|
if (range->has_stepper_c)
|
|
{
|
|
layout->stepper_c.width = stepper_width;
|
|
layout->stepper_c.height = stepper_height;
|
|
}
|
|
else
|
|
{
|
|
layout->stepper_c.width = 0;
|
|
layout->stepper_c.height = 0;
|
|
}
|
|
|
|
layout->stepper_c.x = layout->stepper_d.x - layout->stepper_c.width;
|
|
layout->stepper_c.y = layout->stepper_a.y;
|
|
|
|
/* Now the trough is the remaining space between steppers B and C,
|
|
* if any
|
|
*/
|
|
layout->trough.x = layout->stepper_b.x + layout->stepper_b.width + stepper_spacing * has_steppers_ab;
|
|
layout->trough.y = range_rect.y;
|
|
|
|
layout->trough.width = layout->stepper_c.x - layout->trough.x - stepper_spacing * has_steppers_cd;
|
|
layout->trough.height = range_rect.height;
|
|
|
|
/* Slider fits into the trough, with stepper_spacing on either side,
|
|
* and the size/position based on the adjustment or fixed, depending.
|
|
*/
|
|
layout->slider.y = layout->trough.y + focus_width + trough_border;
|
|
layout->slider.height = layout->trough.height - (focus_width + trough_border) * 2;
|
|
|
|
/* Compute slider position/length */
|
|
{
|
|
gint x, left, right, width;
|
|
|
|
left = layout->trough.x;
|
|
right = layout->trough.x + layout->trough.width;
|
|
|
|
if (! trough_under_steppers)
|
|
{
|
|
left += trough_border;
|
|
right -= trough_border;
|
|
}
|
|
|
|
/* slider width is the fraction (page_size /
|
|
* total_adjustment_range) times the trough width in pixels
|
|
*/
|
|
|
|
if (range->adjustment->upper - range->adjustment->lower != 0)
|
|
width = ((right - left) * (range->adjustment->page_size /
|
|
(range->adjustment->upper - range->adjustment->lower)));
|
|
else
|
|
width = range->min_slider_size;
|
|
|
|
if (width < range->min_slider_size ||
|
|
range->slider_size_fixed)
|
|
width = range->min_slider_size;
|
|
|
|
width = MIN (width, layout->trough.width);
|
|
|
|
x = left;
|
|
|
|
if (range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size != 0)
|
|
x += (right - left - width) * ((adjustment_value - range->adjustment->lower) /
|
|
(range->adjustment->upper - range->adjustment->lower - range->adjustment->page_size));
|
|
|
|
x = CLAMP (x, left, right);
|
|
|
|
if (should_invert (range))
|
|
x = right - (x - left + width);
|
|
|
|
layout->slider.x = x;
|
|
layout->slider.width = width;
|
|
|
|
/* These are publically exported */
|
|
range->slider_start = layout->slider.x;
|
|
range->slider_end = layout->slider.x + layout->slider.width;
|
|
}
|
|
}
|
|
|
|
gtk_range_update_mouse_location (range);
|
|
|
|
switch (range->layout->upper_sensitivity)
|
|
{
|
|
case GTK_SENSITIVITY_AUTO:
|
|
range->layout->upper_sensitive =
|
|
(range->adjustment->value <
|
|
(range->adjustment->upper - range->adjustment->page_size));
|
|
break;
|
|
|
|
case GTK_SENSITIVITY_ON:
|
|
range->layout->upper_sensitive = TRUE;
|
|
break;
|
|
|
|
case GTK_SENSITIVITY_OFF:
|
|
range->layout->upper_sensitive = FALSE;
|
|
break;
|
|
}
|
|
|
|
switch (range->layout->lower_sensitivity)
|
|
{
|
|
case GTK_SENSITIVITY_AUTO:
|
|
range->layout->lower_sensitive =
|
|
(range->adjustment->value > range->adjustment->lower);
|
|
break;
|
|
|
|
case GTK_SENSITIVITY_ON:
|
|
range->layout->lower_sensitive = TRUE;
|
|
break;
|
|
|
|
case GTK_SENSITIVITY_OFF:
|
|
range->layout->lower_sensitive = FALSE;
|
|
break;
|
|
}
|
|
}
|
|
|
|
static GdkRectangle*
|
|
get_area (GtkRange *range,
|
|
MouseLocation location)
|
|
{
|
|
switch (location)
|
|
{
|
|
case MOUSE_STEPPER_A:
|
|
return &range->layout->stepper_a;
|
|
case MOUSE_STEPPER_B:
|
|
return &range->layout->stepper_b;
|
|
case MOUSE_STEPPER_C:
|
|
return &range->layout->stepper_c;
|
|
case MOUSE_STEPPER_D:
|
|
return &range->layout->stepper_d;
|
|
case MOUSE_TROUGH:
|
|
return &range->layout->trough;
|
|
case MOUSE_SLIDER:
|
|
return &range->layout->slider;
|
|
case MOUSE_WIDGET:
|
|
case MOUSE_OUTSIDE:
|
|
break;
|
|
}
|
|
|
|
g_warning (G_STRLOC": bug");
|
|
return NULL;
|
|
}
|
|
|
|
static void
|
|
gtk_range_calc_marks (GtkRange *range)
|
|
{
|
|
gint i;
|
|
|
|
if (!range->layout->recalc_marks)
|
|
return;
|
|
|
|
range->layout->recalc_marks = FALSE;
|
|
|
|
for (i = 0; i < range->layout->n_marks; i++)
|
|
{
|
|
range->need_recalc = TRUE;
|
|
gtk_range_calc_layout (range, range->layout->marks[i]);
|
|
if (range->orientation == GTK_ORIENTATION_HORIZONTAL)
|
|
range->layout->mark_pos[i] = range->layout->slider.x + range->layout->slider.width / 2;
|
|
else
|
|
range->layout->mark_pos[i] = range->layout->slider.y + range->layout->slider.height / 2;
|
|
}
|
|
|
|
range->need_recalc = TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
gtk_range_real_change_value (GtkRange *range,
|
|
GtkScrollType scroll,
|
|
gdouble value)
|
|
{
|
|
/* potentially adjust the bounds _before we clamp */
|
|
g_signal_emit (range, signals[ADJUST_BOUNDS], 0, value);
|
|
|
|
if (range->layout->restrict_to_fill_level)
|
|
value = MIN (value, MAX (range->adjustment->lower,
|
|
range->layout->fill_level));
|
|
|
|
value = CLAMP (value, range->adjustment->lower,
|
|
(range->adjustment->upper - range->adjustment->page_size));
|
|
|
|
if (range->round_digits >= 0)
|
|
{
|
|
gdouble power;
|
|
gint i;
|
|
|
|
i = range->round_digits;
|
|
power = 1;
|
|
while (i--)
|
|
power *= 10;
|
|
|
|
value = floor ((value * power) + 0.5) / power;
|
|
}
|
|
|
|
if (range->adjustment->value != value)
|
|
{
|
|
range->need_recalc = TRUE;
|
|
|
|
gtk_widget_queue_draw (GTK_WIDGET (range));
|
|
|
|
switch (range->update_policy)
|
|
{
|
|
case GTK_UPDATE_CONTINUOUS:
|
|
gtk_adjustment_set_value (range->adjustment, value);
|
|
break;
|
|
|
|
/* Delayed means we update after a period of inactivity */
|
|
case GTK_UPDATE_DELAYED:
|
|
gtk_range_reset_update_timer (range);
|
|
/* FALL THRU */
|
|
|
|
/* Discontinuous means we update on button release */
|
|
case GTK_UPDATE_DISCONTINUOUS:
|
|
/* don't emit value_changed signal */
|
|
range->adjustment->value = value;
|
|
range->update_pending = TRUE;
|
|
break;
|
|
}
|
|
}
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_update_value (GtkRange *range)
|
|
{
|
|
gtk_range_remove_update_timer (range);
|
|
|
|
if (range->update_pending)
|
|
{
|
|
gtk_adjustment_value_changed (range->adjustment);
|
|
|
|
range->update_pending = FALSE;
|
|
}
|
|
}
|
|
|
|
struct _GtkRangeStepTimer
|
|
{
|
|
guint timeout_id;
|
|
GtkScrollType step;
|
|
};
|
|
|
|
static gboolean
|
|
second_timeout (gpointer data)
|
|
{
|
|
GtkRange *range;
|
|
|
|
range = GTK_RANGE (data);
|
|
gtk_range_scroll (range, range->timer->step);
|
|
|
|
return TRUE;
|
|
}
|
|
|
|
static gboolean
|
|
initial_timeout (gpointer data)
|
|
{
|
|
GtkRange *range;
|
|
GtkSettings *settings;
|
|
guint timeout;
|
|
|
|
settings = gtk_widget_get_settings (GTK_WIDGET (data));
|
|
g_object_get (settings, "gtk-timeout-repeat", &timeout, NULL);
|
|
|
|
range = GTK_RANGE (data);
|
|
range->timer->timeout_id = gdk_threads_add_timeout (timeout * SCROLL_DELAY_FACTOR,
|
|
second_timeout,
|
|
range);
|
|
/* remove self */
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_add_step_timer (GtkRange *range,
|
|
GtkScrollType step)
|
|
{
|
|
GtkSettings *settings;
|
|
guint timeout;
|
|
|
|
g_return_if_fail (range->timer == NULL);
|
|
g_return_if_fail (step != GTK_SCROLL_NONE);
|
|
|
|
settings = gtk_widget_get_settings (GTK_WIDGET (range));
|
|
g_object_get (settings, "gtk-timeout-initial", &timeout, NULL);
|
|
|
|
range->timer = g_new (GtkRangeStepTimer, 1);
|
|
|
|
range->timer->timeout_id = gdk_threads_add_timeout (timeout,
|
|
initial_timeout,
|
|
range);
|
|
range->timer->step = step;
|
|
|
|
gtk_range_scroll (range, range->timer->step);
|
|
}
|
|
|
|
static void
|
|
gtk_range_remove_step_timer (GtkRange *range)
|
|
{
|
|
if (range->timer)
|
|
{
|
|
if (range->timer->timeout_id != 0)
|
|
g_source_remove (range->timer->timeout_id);
|
|
|
|
g_free (range->timer);
|
|
|
|
range->timer = NULL;
|
|
}
|
|
}
|
|
|
|
static gboolean
|
|
update_timeout (gpointer data)
|
|
{
|
|
GtkRange *range;
|
|
|
|
range = GTK_RANGE (data);
|
|
gtk_range_update_value (range);
|
|
range->update_timeout_id = 0;
|
|
|
|
/* self-remove */
|
|
return FALSE;
|
|
}
|
|
|
|
static void
|
|
gtk_range_reset_update_timer (GtkRange *range)
|
|
{
|
|
gtk_range_remove_update_timer (range);
|
|
|
|
range->update_timeout_id = gdk_threads_add_timeout (UPDATE_DELAY,
|
|
update_timeout,
|
|
range);
|
|
}
|
|
|
|
static void
|
|
gtk_range_remove_update_timer (GtkRange *range)
|
|
{
|
|
if (range->update_timeout_id != 0)
|
|
{
|
|
g_source_remove (range->update_timeout_id);
|
|
range->update_timeout_id = 0;
|
|
}
|
|
}
|
|
|
|
void
|
|
_gtk_range_set_stop_values (GtkRange *range,
|
|
gdouble *values,
|
|
gint n_values)
|
|
{
|
|
gint i;
|
|
|
|
g_free (range->layout->marks);
|
|
range->layout->marks = g_new (gdouble, n_values);
|
|
|
|
g_free (range->layout->mark_pos);
|
|
range->layout->mark_pos = g_new (gint, n_values);
|
|
|
|
range->layout->n_marks = n_values;
|
|
|
|
for (i = 0; i < n_values; i++)
|
|
range->layout->marks[i] = values[i];
|
|
|
|
range->layout->recalc_marks = TRUE;
|
|
}
|
|
|
|
gint
|
|
_gtk_range_get_stop_positions (GtkRange *range,
|
|
gint **values)
|
|
{
|
|
gtk_range_calc_marks (range);
|
|
|
|
if (values)
|
|
*values = g_memdup (range->layout->mark_pos, range->layout->n_marks * sizeof (gint));
|
|
|
|
return range->layout->n_marks;
|
|
}
|
|
|
|
#define __GTK_RANGE_C__
|
|
#include "gtkaliasdef.c"
|