gail: Remove AtkText implementation from GailScale
AtkText should only be implemented by text editing widgets. For just giving out a small text string, AtkObject::name should be used.
This commit is contained in:
		
				
					committed by
					
						
						Matthias Clasen
					
				
			
			
				
	
			
			
			
						parent
						
							e510d5beba
						
					
				
				
					commit
					a5b08ea931
				
			@ -19,83 +19,19 @@
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#include "config.h"
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#include <string.h>
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#include <gtk/gtk.h>
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#include "gailscale.h"
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#include <libgail-util/gailmisc.h>
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static void	    gail_scale_class_init        (GailScaleClass *klass);
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static void         gail_scale_init              (GailScale      *scale);
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static void         gail_scale_real_initialize   (AtkObject      *obj,
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                                                  gpointer      data);
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static const char * gail_scale_get_description   (AtkObject     *object);
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static void         gail_scale_notify            (GObject       *obj,
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                                                  GParamSpec    *pspec);
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static void         gail_scale_finalize          (GObject        *object);
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/* atktext.h */ 
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static void	    atk_text_interface_init        (AtkTextIface      *iface);
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static gchar*	    gail_scale_get_text	           (AtkText	      *text,
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                                                    gint	      start_pos,
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						    gint	      end_pos);
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static gunichar	    gail_scale_get_character_at_offset
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                                                   (AtkText	      *text,
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						    gint	      offset);
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static gchar*       gail_scale_get_text_before_offset
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                                                   (AtkText	      *text,
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 						    gint	      offset,
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						    AtkTextBoundary   boundary_type,
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						    gint	      *start_offset,
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						    gint	      *end_offset);
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static gchar*       gail_scale_get_text_at_offset  (AtkText	      *text,
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 						    gint	      offset,
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						    AtkTextBoundary   boundary_type,
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						    gint	      *start_offset,
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						    gint	      *end_offset);
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static gchar*      gail_scale_get_text_after_offset
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                                                   (AtkText	      *text,
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 						    gint	      offset,
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						    AtkTextBoundary   boundary_type,
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						    gint	      *start_offset,
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						    gint	      *end_offset);
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static gint	   gail_scale_get_character_count  (AtkText	      *text);
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static void        gail_scale_get_character_extents
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                                                   (AtkText	      *text,
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						    gint 	      offset,
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		                                    gint 	      *x,
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                    		   	            gint 	      *y,
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                                		    gint 	      *width,
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                                     		    gint 	      *height,
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			        		    AtkCoordType      coords);
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static gint        gail_scale_get_offset_at_point  (AtkText           *text,
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                                                    gint              x,
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                                                    gint              y,
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			                            AtkCoordType      coords);
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static AtkAttributeSet* gail_scale_get_run_attributes 
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                                                   (AtkText           *text,
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              					    gint 	      offset,
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                                                    gint 	      *start_offset,
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					            gint	      *end_offset);
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static AtkAttributeSet* gail_scale_get_default_attributes
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                                                   (AtkText           *text);
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G_DEFINE_TYPE_WITH_CODE (GailScale, gail_scale, GAIL_TYPE_RANGE,
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                         G_IMPLEMENT_INTERFACE (ATK_TYPE_TEXT, atk_text_interface_init))
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G_DEFINE_TYPE (GailScale, gail_scale, GAIL_TYPE_RANGE)
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static void	 
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gail_scale_class_init (GailScaleClass *klass)
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{
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  GObjectClass *gobject_class = G_OBJECT_CLASS (klass);
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  AtkObjectClass *class = ATK_OBJECT_CLASS (klass);
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  class->initialize = gail_scale_real_initialize;
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  class->get_description = gail_scale_get_description;
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  gobject_class->finalize = gail_scale_finalize;
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  gobject_class->notify = gail_scale_notify;
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}
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static void
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@ -120,399 +56,3 @@ gail_scale_get_description (AtkObject *object)
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  return ATK_OBJECT_CLASS (gail_scale_parent_class)->get_description (object);
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}
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static void
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gail_scale_real_initialize (AtkObject *obj,
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                            gpointer  data)
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{
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  GailScale *gail_scale;
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  const gchar *txt;
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  PangoLayout *layout;
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  ATK_OBJECT_CLASS (gail_scale_parent_class)->initialize (obj, data);
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  gail_scale = GAIL_SCALE (obj);
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  gail_scale->textutil = gail_text_util_new ();
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  layout = gtk_scale_get_layout (GTK_SCALE (data));
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  if (layout)
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    {
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      txt = pango_layout_get_text (layout);
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      if (txt)
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        {
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          gail_text_util_text_setup (gail_scale->textutil, txt);
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        }
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    }
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}
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static void
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gail_scale_finalize (GObject *object)
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{
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  GailScale *scale = GAIL_SCALE (object);
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  g_object_unref (scale->textutil);
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  G_OBJECT_CLASS (gail_scale_parent_class)->finalize (object);
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}
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static void
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gail_scale_notify (GObject    *obj,
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                   GParamSpec *pspec)
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{
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  GailScale *scale = GAIL_SCALE (obj);
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  if (strcmp (pspec->name, "accessible-value") == 0)
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    {
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      GtkWidget *widget;
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      widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (obj));
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      if (widget)
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        {
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          GtkScale *gtk_scale;
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          PangoLayout *layout;
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          const gchar *txt;
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          gtk_scale = GTK_SCALE (widget);
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          layout = gtk_scale_get_layout (gtk_scale);
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          if (layout)
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            {
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              txt = pango_layout_get_text (layout);
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              if (txt)
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                {
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	          g_signal_emit_by_name (obj, "text_changed::delete", 0,
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                                         gtk_text_buffer_get_char_count (scale->textutil->buffer));
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                  gail_text_util_text_setup (scale->textutil, txt);
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	          g_signal_emit_by_name (obj, "text_changed::insert", 0,
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                                         g_utf8_strlen (txt, -1));
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                }
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            }
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        }
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    }
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  G_OBJECT_CLASS (gail_scale_parent_class)->notify (obj, pspec);
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}
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/* atktext.h */
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static void
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atk_text_interface_init (AtkTextIface *iface)
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{
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  iface->get_text = gail_scale_get_text;
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  iface->get_character_at_offset = gail_scale_get_character_at_offset;
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  iface->get_text_before_offset = gail_scale_get_text_before_offset;
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  iface->get_text_at_offset = gail_scale_get_text_at_offset;
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  iface->get_text_after_offset = gail_scale_get_text_after_offset;
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  iface->get_character_count = gail_scale_get_character_count;
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  iface->get_character_extents = gail_scale_get_character_extents;
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  iface->get_offset_at_point = gail_scale_get_offset_at_point;
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  iface->get_run_attributes = gail_scale_get_run_attributes;
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  iface->get_default_attributes = gail_scale_get_default_attributes;
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}
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static gchar*
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gail_scale_get_text (AtkText *text,
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                     gint    start_pos,
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                     gint    end_pos)
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{
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  GtkWidget *widget;
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  GailScale *scale;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return NULL;
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  scale = GAIL_SCALE (text);
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  return gail_text_util_get_substring (scale->textutil, 
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                                       start_pos, end_pos);
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}
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static gchar*
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gail_scale_get_text_before_offset (AtkText         *text,
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     				   gint            offset,
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				   AtkTextBoundary boundary_type,
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				   gint            *start_offset,
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				   gint            *end_offset)
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{
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  GtkWidget *widget;
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  GailScale *scale;
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  PangoLayout *layout;
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  gchar *txt;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return NULL;
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  scale = GAIL_SCALE (text);
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  layout = gtk_scale_get_layout (GTK_SCALE (widget));
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  if (layout)
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    {
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      txt =  gail_text_util_get_text (scale->textutil,
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                           layout, GAIL_BEFORE_OFFSET, 
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                           boundary_type, offset, start_offset, end_offset); 
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    }
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  else
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    txt = NULL;
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  return txt;
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}
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static gchar*
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gail_scale_get_text_at_offset (AtkText         *text,
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	   		       gint            offset,
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			       AtkTextBoundary boundary_type,
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 			       gint            *start_offset,
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			       gint            *end_offset)
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{
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  GtkWidget *widget;
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  GailScale *scale;
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  PangoLayout *layout;
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  gchar *txt;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return NULL;
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  scale = GAIL_SCALE (text);
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  layout = gtk_scale_get_layout (GTK_SCALE (widget));
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  if (layout)
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    {
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      txt =  gail_text_util_get_text (scale->textutil,
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                              layout, GAIL_AT_OFFSET, 
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                              boundary_type, offset, start_offset, end_offset);
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    }
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  else
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    txt = NULL;
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  return txt;
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}
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static gchar*
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gail_scale_get_text_after_offset (AtkText         *text,
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				  gint            offset,
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				  AtkTextBoundary boundary_type,
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				  gint            *start_offset,
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				  gint            *end_offset)
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{
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  GtkWidget *widget;
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  GailScale *scale;
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  PangoLayout *layout;
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  gchar *txt;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return NULL;
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  scale = GAIL_SCALE (text);
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  layout = gtk_scale_get_layout (GTK_SCALE (widget));
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  if (layout)
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    {
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      txt =  gail_text_util_get_text (scale->textutil,
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                              layout, GAIL_AFTER_OFFSET, 
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                              boundary_type, offset, start_offset, end_offset);
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    }
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  else
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    txt = NULL;
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  return txt;
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}
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static gint
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gail_scale_get_character_count (AtkText *text)
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{
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  GtkWidget *widget;
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  GailScale *scale;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return 0;
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  scale = GAIL_SCALE (text);
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  if (scale->textutil->buffer)
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    return gtk_text_buffer_get_char_count (scale->textutil->buffer);
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  else
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    return 0;
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}
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static void
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gail_scale_get_character_extents (AtkText      *text,
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				  gint         offset,
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		                  gint         *x,
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                    		  gint 	       *y,
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                                  gint 	       *width,
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                                  gint 	       *height,
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			          AtkCoordType coords)
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{
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  GtkWidget *widget;
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  GtkScale *scale;
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  PangoRectangle char_rect;
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  PangoLayout *layout;
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  gint index, x_layout, y_layout;
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  const gchar *scale_text;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return;
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  scale = GTK_SCALE (widget);
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  layout = gtk_scale_get_layout (scale);
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  if (!layout)
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    return;
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  scale_text = pango_layout_get_text (layout);
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  if (!scale_text)
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    return;
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  index = g_utf8_offset_to_pointer (scale_text, offset) - scale_text;
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  gtk_scale_get_layout_offsets (scale, &x_layout, &y_layout);
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  pango_layout_index_to_pos (layout, index, &char_rect);
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  gail_misc_get_extents_from_pango_rectangle (widget, &char_rect, 
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                    x_layout, y_layout, x, y, width, height, coords);
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} 
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static gint 
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gail_scale_get_offset_at_point (AtkText      *text,
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                                gint         x,
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                                gint         y,
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	          		AtkCoordType coords)
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{ 
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  GtkWidget *widget;
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  GtkScale *scale;
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  PangoLayout *layout;
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  gint index, x_layout, y_layout;
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  const gchar *scale_text;
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  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
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  if (widget == NULL)
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    /* State is defunct */
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    return -1;
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  scale = GTK_SCALE (widget);
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  layout = gtk_scale_get_layout (scale);
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  if (!layout)
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    return -1;
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  scale_text = pango_layout_get_text (layout);
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  if (!scale_text)
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    return -1;
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  gtk_scale_get_layout_offsets (scale, &x_layout, &y_layout);
 | 
			
		||||
  index = gail_misc_get_index_at_point_in_layout (widget, 
 | 
			
		||||
                                              layout, 
 | 
			
		||||
                                              x_layout, y_layout, x, y, coords);
 | 
			
		||||
  if (index == -1)
 | 
			
		||||
    {
 | 
			
		||||
      if (coords == ATK_XY_WINDOW || coords == ATK_XY_SCREEN)
 | 
			
		||||
        index = g_utf8_strlen (scale_text, -1);
 | 
			
		||||
    }
 | 
			
		||||
  else
 | 
			
		||||
    index = g_utf8_pointer_to_offset (scale_text, scale_text + index);  
 | 
			
		||||
 | 
			
		||||
  return index;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static AtkAttributeSet*
 | 
			
		||||
gail_scale_get_run_attributes (AtkText *text,
 | 
			
		||||
                               gint    offset,
 | 
			
		||||
                               gint    *start_offset,
 | 
			
		||||
	                       gint    *end_offset)
 | 
			
		||||
{
 | 
			
		||||
  GtkWidget *widget;
 | 
			
		||||
  GtkScale *scale;
 | 
			
		||||
  AtkAttributeSet *at_set = NULL;
 | 
			
		||||
  GtkTextDirection dir;
 | 
			
		||||
  PangoLayout *layout;
 | 
			
		||||
  const gchar *scale_text;
 | 
			
		||||
 | 
			
		||||
  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
 | 
			
		||||
  if (widget == NULL)
 | 
			
		||||
    /* State is defunct */
 | 
			
		||||
    return NULL;
 | 
			
		||||
 | 
			
		||||
  scale = GTK_SCALE (widget);
 | 
			
		||||
 | 
			
		||||
  layout = gtk_scale_get_layout (scale);
 | 
			
		||||
  if (!layout)
 | 
			
		||||
    return at_set;
 | 
			
		||||
  scale_text = pango_layout_get_text (layout);
 | 
			
		||||
  if (!scale_text)
 | 
			
		||||
    return at_set;
 | 
			
		||||
 | 
			
		||||
  dir = gtk_widget_get_direction (widget);
 | 
			
		||||
  if (dir == GTK_TEXT_DIR_RTL)
 | 
			
		||||
    {
 | 
			
		||||
      at_set = gail_misc_add_attribute (at_set, 
 | 
			
		||||
                                        ATK_TEXT_ATTR_DIRECTION,
 | 
			
		||||
     g_strdup (atk_text_attribute_get_value (ATK_TEXT_ATTR_DIRECTION, dir)));
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
  at_set = gail_misc_layout_get_run_attributes (at_set,
 | 
			
		||||
                                                layout,
 | 
			
		||||
                                                (gchar *)scale_text,
 | 
			
		||||
                                                offset,
 | 
			
		||||
                                                start_offset,
 | 
			
		||||
                                                end_offset);
 | 
			
		||||
  return at_set;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static AtkAttributeSet*
 | 
			
		||||
gail_scale_get_default_attributes (AtkText *text)
 | 
			
		||||
{
 | 
			
		||||
  GtkWidget *widget;
 | 
			
		||||
  AtkAttributeSet *at_set = NULL;
 | 
			
		||||
  PangoLayout *layout;
 | 
			
		||||
 | 
			
		||||
  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
 | 
			
		||||
  if (widget == NULL)
 | 
			
		||||
    /* State is defunct */
 | 
			
		||||
    return NULL;
 | 
			
		||||
 | 
			
		||||
  layout = gtk_scale_get_layout (GTK_SCALE (widget));
 | 
			
		||||
  if (layout)
 | 
			
		||||
    {
 | 
			
		||||
      at_set = gail_misc_get_default_attributes (at_set,
 | 
			
		||||
                                                 layout,
 | 
			
		||||
                                                 widget);
 | 
			
		||||
    }
 | 
			
		||||
  return at_set;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static gunichar 
 | 
			
		||||
gail_scale_get_character_at_offset (AtkText *text,
 | 
			
		||||
                                    gint    offset)
 | 
			
		||||
{
 | 
			
		||||
  GtkWidget *widget;
 | 
			
		||||
  GtkScale *scale;
 | 
			
		||||
  PangoLayout *layout;
 | 
			
		||||
  const gchar *string;
 | 
			
		||||
  gchar *index;
 | 
			
		||||
  gunichar c;
 | 
			
		||||
 | 
			
		||||
  widget = gtk_accessible_get_widget (GTK_ACCESSIBLE (text));
 | 
			
		||||
  if (widget == NULL)
 | 
			
		||||
    /* State is defunct */
 | 
			
		||||
    return '\0';
 | 
			
		||||
 | 
			
		||||
  scale = GTK_SCALE (widget);
 | 
			
		||||
 | 
			
		||||
  layout = gtk_scale_get_layout (scale);
 | 
			
		||||
  if (!layout)
 | 
			
		||||
    return '\0';
 | 
			
		||||
  string = pango_layout_get_text (layout);
 | 
			
		||||
  if (offset >= g_utf8_strlen (string, -1))
 | 
			
		||||
    c = '\0';
 | 
			
		||||
  else
 | 
			
		||||
    {
 | 
			
		||||
      index = g_utf8_offset_to_pointer (string, offset);
 | 
			
		||||
 | 
			
		||||
      c = g_utf8_get_char (index);
 | 
			
		||||
    }
 | 
			
		||||
 | 
			
		||||
  return c;
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
@ -276,10 +276,6 @@ window1
 | 
			
		||||
              <AtkComponent>
 | 
			
		||||
              layer: widget
 | 
			
		||||
              alpha: 1
 | 
			
		||||
              <AtkText>
 | 
			
		||||
              text: (null)
 | 
			
		||||
              character count: 0
 | 
			
		||||
              caret offset: 0
 | 
			
		||||
              <AtkAction>
 | 
			
		||||
              action 0 name: activate
 | 
			
		||||
              action 0 keybinding: <Alt>a
 | 
			
		||||
 | 
			
		||||
		Reference in New Issue
	
	Block a user