[gtk+] GtkLabel: Drop use of GtkMisc::x/yalign

[Matthias Clasen <matthiasc src gnome org>]

commit b320c198b6d325c35e6f6d32f4f841a913efa956
Author: Matthias Clasen <mclasen redhat com>
Date:   Thu May 22 21:19:49 2014 -0400

    GtkLabel: Drop use of GtkMisc::x/yalign
    
    Instead, use GtkWidget::h/valign to position the text inside
    the allocation. And just stop using GtkMisc::x/ypad.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=730613

 gtk/gtklabel.c |   91 +++++++++++++++++++++++++++++++++++++++++++++-----------
 1 files changed, 73 insertions(+), 18 deletions(-)
---
diff --git a/gtk/gtklabel.c b/gtk/gtklabel.c
index b3ed083..68c23d3 100644
--- a/gtk/gtklabel.c
+++ b/gtk/gtklabel.c
@@ -962,6 +962,7 @@ gtk_label_class_init (GtkLabelClass *class)
                                                      G_MAXINT,
                                                      -1,
                                                      GTK_PARAM_READWRITE));
+
   /*
    * Key bindings
    */
@@ -3219,6 +3220,17 @@ gtk_label_get_measuring_layout (GtkLabel *   label,
 }
 
 static void
+gtk_label_get_border (GtkLabel *label, GtkBorder *border)
+{
+  GtkStyleContext *context;
+  GtkStateFlags state;
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (label));
+  state = gtk_widget_get_state_flags (GTK_WIDGET (label));
+  gtk_style_context_get_border (context, state, border);
+}
+
+static void
 gtk_label_update_layout_width (GtkLabel *label)
 {
   GtkLabelPrivate *priv = label->priv;
@@ -3232,9 +3244,7 @@ gtk_label_update_layout_width (GtkLabel *label)
       PangoRectangle logical;
       gint width, height;
 
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-      _gtk_misc_get_padding_and_border (GTK_MISC (label), &border);
-G_GNUC_END_IGNORE_DEPRECATIONS
+      gtk_label_get_border (label, &border);
 
       width = gtk_widget_get_allocated_width (GTK_WIDGET (label)) - border.left - border.right;
       height = gtk_widget_get_allocated_height (GTK_WIDGET (label)) - border.top - border.bottom;
@@ -3651,9 +3661,7 @@ gtk_label_get_preferred_size (GtkWidget      *widget,
   smallest_rect.width  = PANGO_PIXELS_CEIL (smallest_rect.width);
   smallest_rect.height = PANGO_PIXELS_CEIL (smallest_rect.height);
 
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-  _gtk_misc_get_padding_and_border (GTK_MISC (label), &border);
-G_GNUC_END_IGNORE_DEPRECATIONS
+  gtk_label_get_border (label, &border);
 
   if (orientation == GTK_ORIENTATION_HORIZONTAL)
     {
@@ -3757,9 +3765,7 @@ gtk_label_get_preferred_width_for_height (GtkWidget *widget,
     {
       GtkBorder border;
 
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-      _gtk_misc_get_padding_and_border (GTK_MISC (label), &border);
-G_GNUC_END_IGNORE_DEPRECATIONS
+      gtk_label_get_border (label, &border);
 
       if (priv->wrap)
         gtk_label_clear_layout (label);
@@ -3794,9 +3800,7 @@ gtk_label_get_preferred_height_and_baseline_for_width (GtkWidget *widget,
     {
       GtkBorder border;
 
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-      _gtk_misc_get_padding_and_border (GTK_MISC (label), &border);
-G_GNUC_END_IGNORE_DEPRECATIONS
+      gtk_label_get_border (label, &border);
 
       if (priv->wrap)
         gtk_label_clear_layout (label);
@@ -3922,6 +3926,60 @@ gtk_label_style_updated (GtkWidget *widget)
     gtk_label_update_layout_attributes (label);
 }
 
+static gfloat
+halign_to_float (GtkWidget *widget)
+{
+  gfloat ret = 0.5;
+
+  switch (gtk_widget_get_halign (widget))
+    {
+    case GTK_ALIGN_FILL:
+    case GTK_ALIGN_CENTER:
+      ret = 0.5;
+      break;
+    case GTK_ALIGN_START:
+      ret = 0.0;
+      break;
+    case GTK_ALIGN_END:
+      ret = 1.0;
+      break;
+    case GTK_ALIGN_BASELINE:
+      ret = 0.0;
+      g_assert_not_reached ();
+      break;    
+    }
+
+  if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
+    ret = 1.0 - ret;
+
+  return ret;
+}
+
+static gfloat
+valign_to_float (GtkWidget *widget)
+{
+  gfloat ret = 0.5;
+
+  switch (gtk_widget_get_valign (widget))
+    {
+    case GTK_ALIGN_FILL:
+    case GTK_ALIGN_CENTER:
+      ret = 0.5;
+      break;
+    case GTK_ALIGN_START:
+      ret = 0.0;
+      break;
+    case GTK_ALIGN_END:
+      ret = 1.0;
+      break;
+    case GTK_ALIGN_BASELINE:
+      ret = 0.0;
+      break;    
+    }
+
+  return ret;
+}
+
 static void
 get_layout_location (GtkLabel  *label,
                      gint      *xp,
@@ -3940,13 +3998,10 @@ get_layout_location (GtkLabel  *label,
   widget = GTK_WIDGET (label);
   priv   = label->priv;
 
-G_GNUC_BEGIN_IGNORE_DEPRECATIONS
-  gtk_misc_get_alignment (GTK_MISC (label), &xalign, &yalign);
-  _gtk_misc_get_padding_and_border (GTK_MISC (label), &border);
-G_GNUC_END_IGNORE_DEPRECATIONS
+  gtk_label_get_border (label, &border);
 
-  if (gtk_widget_get_direction (widget) != GTK_TEXT_DIR_LTR)
-    xalign = 1.0 - xalign;
+  xalign = halign_to_float (widget);
+  yalign = valign_to_float (widget);
 
   pango_layout_get_extents (priv->layout, NULL, &logical);