[gnome-games] aisleriot: Add widget style property for card-step

[Christian Persch <chpe src gnome org>]

commit 5a02a1661ab3e85a7d6163818e5ba96435b8157f
Author: Christian Persch <chpe gnome org>
Date:   Mon Jan 4 14:15:49 2010 +0100

    aisleriot: Add widget style property for card-step

 aisleriot/ar-clutter-embed.c |   27 +++++++++++++++++++++++++--
 aisleriot/ar-style-private.h |    3 +++
 aisleriot/ar-style.c         |    4 ++--
 3 files changed, 30 insertions(+), 4 deletions(-)
---
diff --git a/aisleriot/ar-clutter-embed.c b/aisleriot/ar-clutter-embed.c
index edee8db..611473f 100644
--- a/aisleriot/ar-clutter-embed.c
+++ b/aisleriot/ar-clutter-embed.c
@@ -273,7 +273,7 @@ ar_clutter_embed_style_set (GtkWidget *widget,
   ClutterColor selection_color;
   int focus_line_width, focus_padding;
   gboolean interior_focus;
-  double card_slot_ratio, card_overhang;
+  double card_slot_ratio, card_overhang, card_step;
 
   GTK_WIDGET_CLASS (ar_clutter_embed_parent_class)->style_set (widget, previous_style);
 
@@ -285,6 +285,7 @@ ar_clutter_embed_style_set (GtkWidget *widget,
                         "focus-padding", &focus_padding,
                         "card-slot-ratio", &card_slot_ratio,
                         "card-overhang", &card_overhang,
+                        "card-step", &card_step,
                         "selection-color", &color,
                         NULL);
 
@@ -318,6 +319,12 @@ ar_clutter_embed_style_set (GtkWidget *widget,
     g_object_notify (style_object, AR_STYLE_PROP_CARD_OVERHANG);
   }
 
+  if (style_priv->card_step != card_step) {
+    style_priv->card_step = card_step;
+
+    g_object_notify (style_object, AR_STYLE_PROP_CARD_STEP);
+  }
+
   if (color != NULL) {
     _ar_clutter_color_from_gdk_color (&selection_color, color);
     gdk_color_free (color);
@@ -521,13 +528,29 @@ ar_clutter_embed_class_init (ArClutterEmbedClass *klass)
 
   /**
    * ArClutterEmbed:card-overhang:
-  */
+   *
+   * This controls how much of a card is allowed to hang off of the bottom
+   * of the screen. If set to %0.0, the last card is always fully visible.
+   */
   gtk_widget_class_install_style_property
     (widget_class,
      g_param_spec_double ("card-overhang", NULL, NULL,
                           0.0, 1.0, DEFAULT_CARD_OVERHANG,
                           G_PARAM_READWRITE |
                           G_PARAM_STATIC_STRINGS));
+
+  /**
+   * ArClutterEmbed:card-step:
+   *
+   * This controls how much one card is offset the previous one in card stacks.
+   * A game-specified a value for the card step takes precedence over this.
+   */
+  gtk_widget_class_install_style_property
+    (widget_class,
+     g_param_spec_double ("card-step", NULL, NULL,
+                          MIN_CARD_STEP, MAX_CARD_STEP, DEFAULT_CARD_STEP,
+                          G_PARAM_READWRITE |
+                          G_PARAM_STATIC_STRINGS));
 }
 
 /* public API */
diff --git a/aisleriot/ar-style-private.h b/aisleriot/ar-style-private.h
index c38fb59..0096336 100644
--- a/aisleriot/ar-style-private.h
+++ b/aisleriot/ar-style-private.h
@@ -32,6 +32,9 @@ static const GdkColor default_selection_color = { 0, 0 /* red */, 0 /* green */,
 #endif /* !DEFAULT_CARD_SLOT_RATIO */
 
 #define DEFAULT_CARD_OVERHANG (0.0)
+
+#define MIN_CARD_STEP (0.0)
+#define MAX_CARD_STEP (1.0) /* FIXMEchpe: allow values > 1.0 here? */
 #define DEFAULT_CARD_STEP (0.2)
 
 struct _ArStylePrivate
diff --git a/aisleriot/ar-style.c b/aisleriot/ar-style.c
index e885205..3d40ff6 100644
--- a/aisleriot/ar-style.c
+++ b/aisleriot/ar-style.c
@@ -279,13 +279,13 @@ ar_style_class_init (ArStyleClass *klass)
    * ArStyle:card-step:
    *
    * This controls how much one card is offset the previous one in card stacks.
+   * A game-specified a value for the card step takes precedence over this.
    */
   g_object_class_install_property
     (object_class,
      PROP_CARD_STEP,
      g_param_spec_double (AR_STYLE_PROP_CARD_STEP, NULL, NULL,
-                          /* FIXMEchpe: allow values > 1.0 here? */
-                          0.0, 1.0, DEFAULT_CARD_STEP,
+                          MIN_CARD_STEP, MAX_CARD_STEP, DEFAULT_CARD_STEP,
                           G_PARAM_READWRITE |
                           G_PARAM_STATIC_STRINGS));