[gtk+/wip/colorchooser-v2] GtkColorSwatch: Use widget state instead of a custom 'selected'

[Matthias Clasen <matthiasc src gnome org>]

commit cf6e32723ab4b45c99a0b0405e20a38fed0f3de7
Author: Matthias Clasen <mclasen redhat com>
Date:   Wed Feb 8 23:48:11 2012 -0500

    GtkColorSwatch: Use widget state instead of a custom 'selected'

 gtk/gtkcolorchooserwidget.c |   15 ++++++++++-----
 gtk/gtkcolorswatch.c        |   35 +++++++----------------------------
 gtk/gtkcolorswatchprivate.h |    3 ---
 3 files changed, 17 insertions(+), 36 deletions(-)
---
diff --git a/gtk/gtkcolorchooserwidget.c b/gtk/gtkcolorchooserwidget.c
index 6599fac..1e0e3a1 100644
--- a/gtk/gtkcolorchooserwidget.c
+++ b/gtk/gtkcolorchooserwidget.c
@@ -103,8 +103,8 @@ select_swatch (GtkColorChooserWidget *cc,
     return;
 
   if (cc->priv->current != NULL)
-    gtk_color_swatch_set_selected (cc->priv->current, FALSE);
-  gtk_color_swatch_set_selected (swatch, TRUE);
+    gtk_widget_unset_state_flags (GTK_WIDGET (cc->priv->current), GTK_STATE_FLAG_SELECTED);
+  gtk_widget_set_state_flags (GTK_WIDGET (swatch), GTK_STATE_FLAG_SELECTED, FALSE);
   cc->priv->current = swatch;
 
   gtk_color_swatch_get_rgba (swatch, &color);
@@ -140,10 +140,15 @@ swatch_customize (GtkColorSwatch        *swatch,
 
 static void
 swatch_selected (GtkColorSwatch        *swatch,
-                 GParamSpec            *pspec,
+                 GtkStateFlags          previous,
                  GtkColorChooserWidget *cc)
 {
-  select_swatch (cc, swatch);
+  GtkStateFlags flags;
+
+  flags = gtk_widget_get_state_flags (GTK_WIDGET (swatch));
+  if ((flags & GTK_STATE_FLAG_SELECTED) != (previous & GTK_STATE_FLAG_SELECTED) &&
+      (flags & GTK_STATE_FLAG_SELECTED) != 0)
+    select_swatch (cc, swatch);
 }
 
 static void
@@ -152,7 +157,7 @@ connect_swatch_signals (GtkWidget *p,
 {
   g_signal_connect (p, "activate", G_CALLBACK (swatch_activate), data);
   g_signal_connect (p, "customize", G_CALLBACK (swatch_customize), data);
-  g_signal_connect (p, "notify::selected", G_CALLBACK (swatch_selected), data);
+  g_signal_connect (p, "state-flags-changed", G_CALLBACK (swatch_selected), data);
 }
 
 static void
diff --git a/gtk/gtkcolorswatch.c b/gtk/gtkcolorswatch.c
index 8766ee6..0bd1d64 100644
--- a/gtk/gtkcolorswatch.c
+++ b/gtk/gtkcolorswatch.c
@@ -38,7 +38,6 @@ struct _GtkColorSwatchPrivate
   GdkRGBA color;
   gdouble radius[4];
   gchar *icon;
-  guint    selected         : 1;
   guint    has_color        : 1;
   guint    contains_pointer : 1;
   guint    use_alpha        : 1;
@@ -185,7 +184,7 @@ swatch_draw (GtkWidget *widget,
                                               GTK_ICON_LOOKUP_GENERIC_FALLBACK
                                               | GTK_ICON_LOOKUP_USE_BUILTIN);
     }
-  else if (swatch->priv->selected)
+  else if ((state & GTK_STATE_FLAG_SELECTED) != 0)
     {
       GdkRGBA bg, border;
       GtkBorder border_width;
@@ -358,8 +357,8 @@ swatch_key_press (GtkWidget   *widget,
       event->keyval == GDK_KEY_KP_Enter ||
       event->keyval == GDK_KEY_KP_Space)
     {
-      if (swatch->priv->has_color && !swatch->priv->selected)
-        gtk_color_swatch_set_selected (swatch, TRUE);
+      if (swatch->priv->has_color && (gtk_widget_get_state_flags (widget) & GTK_STATE_FLAG_SELECTED) == 0)
+        gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_SELECTED, FALSE);
       else
         g_signal_emit (swatch, signals[ACTIVATE], 0);
       return TRUE;
@@ -489,18 +488,20 @@ swatch_button_release (GtkWidget      *widget,
                        GdkEventButton *event)
 {
   GtkColorSwatch *swatch = GTK_COLOR_SWATCH (widget);
+  GtkStateFlags flags;
 
   if (event->button == GDK_BUTTON_PRIMARY &&
       swatch->priv->contains_pointer)
     {
+      flags = gtk_widget_get_state_flags (widget);
       if (!swatch->priv->has_color)
         {
           g_signal_emit (swatch, signals[ACTIVATE], 0);
           return TRUE;
         }
-      else if (!swatch->priv->selected)
+      else if ((flags & GTK_STATE_FLAG_SELECTED) == 0)
         {
-          gtk_color_swatch_set_selected (swatch, TRUE);
+          gtk_widget_set_state_flags (widget, GTK_STATE_FLAG_SELECTED, FALSE);
           return TRUE;
         }
     }
@@ -532,9 +533,6 @@ swatch_get_property (GObject    *object,
       gtk_color_swatch_get_rgba (swatch, &color);
       g_value_set_boxed (value, &color);
       break;
-    case PROP_SELECTED:
-      g_value_set_boolean (value, swatch->priv->selected);
-      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -554,9 +552,6 @@ swatch_set_property (GObject      *object,
     case PROP_RGBA:
       gtk_color_swatch_set_rgba (swatch, g_value_get_boxed (value));
       break;
-    case PROP_SELECTED:
-      gtk_color_swatch_set_selected (swatch, g_value_get_boolean (value));
-      break;
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
       break;
@@ -614,10 +609,6 @@ gtk_color_swatch_class_init (GtkColorSwatchClass *class)
       g_param_spec_boxed ("rgba", P_("RGBA Color"), P_("Color as RGBA"),
                           GDK_TYPE_RGBA, GTK_PARAM_READWRITE));
 
-  g_object_class_install_property (object_class, PROP_SELECTED,
-      g_param_spec_boolean ("selected", P_("Selected"), P_("Selected"),
-                            FALSE, GTK_PARAM_READWRITE));
-
   g_type_class_add_private (object_class, sizeof (GtkColorSwatchPrivate));
 }
 
@@ -689,18 +680,6 @@ gtk_color_swatch_get_rgba (GtkColorSwatch *swatch,
 }
 
 void
-gtk_color_swatch_set_selected (GtkColorSwatch *swatch,
-                               gboolean        selected)
-{
-  if (swatch->priv->selected != selected)
-    {
-      swatch->priv->selected = selected;
-      gtk_widget_queue_draw (GTK_WIDGET (swatch));
-      g_object_notify (G_OBJECT (swatch), "selected");
-    }
-}
-
-void
 gtk_color_swatch_set_icon (GtkColorSwatch *swatch,
                            const gchar    *icon)
 {
diff --git a/gtk/gtkcolorswatchprivate.h b/gtk/gtkcolorswatchprivate.h
index 71bcd1a..bc8a03d 100644
--- a/gtk/gtkcolorswatchprivate.h
+++ b/gtk/gtkcolorswatchprivate.h
@@ -82,9 +82,6 @@ void        gtk_color_swatch_set_hsva         (GtkColorSwatch *swatch,
                                                gdouble         v,
                                                gdouble         a);
 G_GNUC_INTERNAL
-void        gtk_color_swatch_set_selected     (GtkColorSwatch *swatch,
-                                               gboolean        selected);
-G_GNUC_INTERNAL
 void        gtk_color_swatch_set_can_drop     (GtkColorSwatch *swatch,
                                                gboolean        can_drop);
 G_GNUC_INTERNAL