]> Pileus Git - ~andy/gtk/blobdiff - gtk/gtkframe.c
GtkBubbleWindow: rework how drawing is done
[~andy/gtk] / gtk / gtkframe.c
index 3390e47e8b01508b5482ac40087e6829e2f504de..9b81631394c455e6d3adefe903861ab7a14d012c 100644 (file)
@@ -12,9 +12,7 @@
  * Lesser General Public License for more details.
  *
  * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, write to the
- * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
- * Boston, MA 02111-1307, USA.
+ * License along with this library. If not, see <http://www.gnu.org/licenses/>.
  */
 
 /*
 #include "gtkframe.h"
 #include "gtklabel.h"
 #include "gtkprivate.h"
+#include "gtktypebuiltins.h"
 #include "gtkintl.h"
 #include "gtkbuildable.h"
+#include "gtkwidgetpath.h"
+
+#include "a11y/gtkframeaccessible.h"
+
+/**
+ * SECTION:gtkframe
+ * @Short_description: A bin with a decorative frame and optional label
+ * @Title: GtkFrame
+ *
+ * The frame widget is a Bin that surrounds its child
+ * with a decorative frame and an optional label.
+ * If present, the label is drawn in a gap in the
+ * top side of the frame. The position of the
+ * label can be controlled with gtk_frame_set_label_align().
+ *
+ * <refsect2 id="GtkFrame-BUILDER-UI">
+ * <title>GtkFrame as GtkBuildable</title>
+ * <para>
+ * The GtkFrame implementation of the GtkBuildable interface
+ * supports placing a child in the label position by specifying
+ * "label" as the "type" attribute of a &lt;child&gt; element.
+ * A normal content child can be specified without specifying
+ * a &lt;child&gt; type attribute.
+ * </para>
+ * <example>
+ * <title>A UI definition fragment with GtkFrame</title>
+ * <programlisting><![CDATA[
+ * <object class="GtkFrame">
+ *   <child type="label">
+ *     <object class="GtkLabel" id="frame-label"/>
+ *   </child>
+ *   <child>
+ *     <object class="GtkEntry" id="frame-content"/>
+ *   </child>
+ * </object>
+ * ]]></programlisting>
+ * </example>
+ * </refsect2>
+ */
 
 
 #define LABEL_PAD 1
@@ -77,6 +115,8 @@ static void gtk_frame_forall        (GtkContainer   *container,
                                     gboolean        include_internals,
                                     GtkCallback     callback,
                                     gpointer        callback_data);
+static GtkWidgetPath * gtk_frame_get_path_for_child (GtkContainer *container,
+                                                     GtkWidget    *child);
 
 static void gtk_frame_compute_child_allocation      (GtkFrame      *frame,
                                                     GtkAllocation *child_allocation);
@@ -176,10 +216,13 @@ gtk_frame_class_init (GtkFrameClass *class)
 
   container_class->remove = gtk_frame_remove;
   container_class->forall = gtk_frame_forall;
+  container_class->get_path_for_child = gtk_frame_get_path_for_child;
 
   class->compute_child_allocation = gtk_frame_real_compute_child_allocation;
 
   g_type_class_add_private (class, sizeof (GtkFramePrivate));
+
+  gtk_widget_class_set_accessible_type (widget_class, GTK_TYPE_FRAME_ACCESSIBLE);
 }
 
 static void
@@ -206,6 +249,7 @@ static void
 gtk_frame_init (GtkFrame *frame)
 {
   GtkFramePrivate *priv;
+  GtkStyleContext *context;
 
   frame->priv = G_TYPE_INSTANCE_GET_PRIVATE (frame,
                                              GTK_TYPE_FRAME,
@@ -216,6 +260,9 @@ gtk_frame_init (GtkFrame *frame)
   priv->shadow_type = GTK_SHADOW_ETCHED_IN;
   priv->label_xalign = 0.0;
   priv->label_yalign = 0.5;
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (frame));
+  gtk_style_context_add_class (context, GTK_STYLE_CLASS_FRAME);
 }
 
 static void 
@@ -333,6 +380,23 @@ gtk_frame_forall (GtkContainer *container,
     (* callback) (priv->label_widget, callback_data);
 }
 
+static GtkWidgetPath *
+gtk_frame_get_path_for_child (GtkContainer *container,
+                              GtkWidget    *child)
+{
+  GtkFramePrivate *priv = GTK_FRAME (container)->priv;
+  GtkWidgetPath *path;
+
+  path = GTK_CONTAINER_CLASS (gtk_frame_parent_class)->get_path_for_child (container, child);
+
+  if (child == priv->label_widget)
+    gtk_widget_path_iter_add_class (path,
+                                    gtk_widget_path_length (path) - 2,
+                                    GTK_STYLE_CLASS_FRAME);
+
+  return path;
+}
+
 /**
  * gtk_frame_set_label:
  * @frame: a #GtkFrame
@@ -374,7 +438,7 @@ gtk_frame_set_label (GtkFrame *frame,
  *               a #GtkLabel. This string is owned by GTK+ and
  *               must not be modified or freed.
  **/
-G_CONST_RETURN gchar *
+const gchar *
 gtk_frame_get_label (GtkFrame *frame)
 {
   GtkFramePrivate *priv;
@@ -503,8 +567,10 @@ gtk_frame_set_label_align (GtkFrame *frame,
 /**
  * gtk_frame_get_label_align:
  * @frame: a #GtkFrame
- * @xalign: (allow-none): location to store X alignment of frame's label, or %NULL
- * @yalign: (allow-none): location to store X alignment of frame's label, or %NULL
+ * @xalign: (out) (allow-none): location to store X alignment of
+ *     frame's label, or %NULL
+ * @yalign: (out) (allow-none): location to store X alignment of
+ *     frame's label, or %NULL
  * 
  * Retrieves the X and Y alignment of the frame's label. See
  * gtk_frame_set_label_align().
@@ -576,65 +642,94 @@ gtk_frame_get_shadow_type (GtkFrame *frame)
   return frame->priv->shadow_type;
 }
 
+static void
+get_padding_and_border (GtkFrame *frame,
+                        GtkBorder *border)
+{
+  GtkStyleContext *context;
+  GtkStateFlags state;
+
+  context = gtk_widget_get_style_context (GTK_WIDGET (frame));
+  state = gtk_widget_get_state_flags (GTK_WIDGET (frame));
+
+  gtk_style_context_get_padding (context, state, border);
+
+  if (frame->priv->shadow_type != GTK_SHADOW_NONE)
+    {
+      GtkBorder tmp;
+
+      gtk_style_context_get_border (context, state, &tmp);
+      border->top += tmp.top;
+      border->right += tmp.right;
+      border->bottom += tmp.bottom;
+      border->left += tmp.left;
+    }
+}
+
 static gboolean
 gtk_frame_draw (GtkWidget *widget,
                cairo_t   *cr)
 {
   GtkFrame *frame;
   GtkFramePrivate *priv;
-  GtkStateType state;
-  GtkStyle *style;
+  GtkStyleContext *context;
   gint x, y, width, height;
   GtkAllocation allocation;
+  GtkBorder padding;
 
   frame = GTK_FRAME (widget);
   priv = frame->priv;
 
-  style = gtk_widget_get_style (widget);
-  state = gtk_widget_get_state (widget);
   gtk_widget_get_allocation (widget, &allocation);
+  get_padding_and_border (frame, &padding);
+  context = gtk_widget_get_style_context (widget);
 
-  x = priv->child_allocation.x - allocation.x - style->xthickness;
-  y = priv->child_allocation.y - allocation.y - style->ythickness;
-  width = priv->child_allocation.width + 2 * style->xthickness;
-  height =  priv->child_allocation.height + 2 * style->ythickness;
+  x = priv->child_allocation.x - allocation.x - padding.left;
+  y = priv->child_allocation.y - allocation.y - padding.top;
+  width = priv->child_allocation.width + padding.left + padding.right;
+  height =  priv->child_allocation.height + padding.top + padding.bottom;
 
-  if (priv->label_widget)
+  if (priv->shadow_type != GTK_SHADOW_NONE)
     {
-      gfloat xalign;
-      gint height_extra;
-      gint x2;
-
-      if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
-        xalign = priv->label_xalign;
-      else
-        xalign = 1 - priv->label_xalign;
-
-      height_extra = MAX (0, priv->label_allocation.height - style->ythickness)
-                     - priv->label_yalign * priv->label_allocation.height;
-      y -= height_extra;
-      height += height_extra;
-
-      x2 = style->xthickness + (priv->child_allocation.width - priv->label_allocation.width - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD) * xalign + LABEL_SIDE_PAD;
-      /* If the label is completely over or under the frame we can omit the gap */
-      if (priv->label_yalign == 0.0 || priv->label_yalign == 1.0)
-        gtk_paint_shadow (style, cr,
-                          state, priv->shadow_type,
-                          widget, "frame",
-                          x, y, width, height);
+      if (priv->label_widget)
+        {
+          gfloat xalign;
+          gint height_extra;
+          gint x2;
+
+          if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
+            xalign = priv->label_xalign;
+          else
+            xalign = 1 - priv->label_xalign;
+
+          height_extra = MAX (0, priv->label_allocation.height - padding.top)
+            - priv->label_yalign * priv->label_allocation.height;
+          y -= height_extra;
+          height += height_extra;
+
+          x2 = padding.left + (priv->child_allocation.width - priv->label_allocation.width - 2 * LABEL_PAD - 2 * LABEL_SIDE_PAD) * xalign + LABEL_SIDE_PAD;
+
+          gtk_render_background (context, cr, x, y, width, height);
+
+          /* If the label is completely over or under the frame we can omit the gap */
+          if (priv->label_yalign == 0.0 || priv->label_yalign == 1.0)
+            gtk_render_frame (context, cr, x, y, width, height);
+          else
+            gtk_render_frame_gap (context, cr,
+                                  x, y, width, height,
+                                  GTK_POS_TOP, x2,
+                                  x2 + priv->label_allocation.width + 2 * LABEL_PAD);
+        }
       else
-        gtk_paint_shadow_gap (style, cr,
-                              state, priv->shadow_type,
-                              widget, "frame",
-                              x, y, width, height,
-                              GTK_POS_TOP,
-                              x2, priv->label_allocation.width + 2 * LABEL_PAD);
+        {
+          gtk_render_background (context, cr, x, y, width, height);
+          gtk_render_frame (context, cr, x, y, width, height);
+        }
+    }
+  else
+    {
+      gtk_render_background (context, cr, x, y, width, height);
     }
-   else
-     gtk_paint_shadow (style, cr,
-                       state, priv->shadow_type,
-                       widget, "frame",
-                       x, y, width, height);
 
   GTK_WIDGET_CLASS (gtk_frame_parent_class)->draw (widget, cr);
 
@@ -671,11 +766,11 @@ gtk_frame_size_allocate (GtkWidget     *widget,
 
   if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))
     {
-      GtkStyle *style;
+      GtkBorder padding;
       gint nat_width, width, height;
       gfloat xalign;
 
-      style = gtk_widget_get_style (widget);
+      get_padding_and_border (frame, &padding);
 
       if (gtk_widget_get_direction (widget) == GTK_TEXT_DIR_LTR)
        xalign = priv->label_xalign;
@@ -695,7 +790,7 @@ gtk_frame_size_allocate (GtkWidget     *widget,
 
       priv->label_allocation.width = width;
 
-      priv->label_allocation.y = priv->child_allocation.y - MAX (height, style->ythickness);
+      priv->label_allocation.y = priv->child_allocation.y - MAX (height, padding.top);
       priv->label_allocation.height = height;
 
       gtk_widget_size_allocate (priv->label_widget, &priv->label_allocation);
@@ -719,14 +814,12 @@ gtk_frame_real_compute_child_allocation (GtkFrame      *frame,
   GtkFramePrivate *priv = frame->priv;
   GtkWidget *widget = GTK_WIDGET (frame);
   GtkAllocation allocation;
-  GtkStyle *style;
+  GtkBorder padding;
   gint top_margin;
   guint border_width;
 
-  style = gtk_widget_get_style (widget);
-
   gtk_widget_get_allocation (widget, &allocation);
-
+  get_padding_and_border (frame, &padding);
   border_width = gtk_container_get_border_width (GTK_CONTAINER (frame));
 
   if (priv->label_widget)
@@ -737,23 +830,24 @@ gtk_frame_real_compute_child_allocation (GtkFrame      *frame,
 
       width = allocation.width;
       width -= 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
-      width -= (border_width + style->xthickness) * 2;
+      width -= (border_width * 2) + padding.left + padding.right;
 
       width = MIN (width, nat_width);
 
       gtk_widget_get_preferred_height_for_width (priv->label_widget, width,
                                                  &height, NULL);
 
-      top_margin = MAX (height, style->ythickness);
+      top_margin = MAX (height, padding.top);
     }
   else
-    top_margin = style->ythickness;
+    top_margin = padding.top;
 
-  child_allocation->x = border_width + style->xthickness;
+  child_allocation->x = border_width + padding.left;
   child_allocation->y = border_width + top_margin;
-  child_allocation->width = MAX (1, (gint) allocation.width - child_allocation->x * 2);
-  child_allocation->height = MAX (1, ((gint) allocation.height - child_allocation->y -
-                                      border_width - (gint) style->ythickness));
+  child_allocation->width = MAX (1, (gint) (allocation.width - (border_width * 2) -
+                                           padding.left - padding.right));
+  child_allocation->height = MAX (1, (gint) (allocation.height - child_allocation->y -
+                                            border_width - padding.bottom));
 
   child_allocation->x += allocation.x;
   child_allocation->y += allocation.y;
@@ -767,7 +861,7 @@ gtk_frame_get_preferred_size (GtkWidget      *request,
 {
   GtkFrame *frame = GTK_FRAME (request);
   GtkFramePrivate *priv = frame->priv;
-  GtkStyle *style;
+  GtkBorder padding;
   GtkWidget *widget = GTK_WIDGET (request);
   GtkWidget *child;
   GtkBin *bin = GTK_BIN (widget);
@@ -775,7 +869,8 @@ gtk_frame_get_preferred_size (GtkWidget      *request,
   gint minimum, natural;
   guint border_width;
 
-  style = gtk_widget_get_style (widget);
+  get_padding_and_border (frame, &padding);
+  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
 
   if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))
     {
@@ -790,8 +885,8 @@ gtk_frame_get_preferred_size (GtkWidget      *request,
         {
           gtk_widget_get_preferred_height (priv->label_widget,
                                            &child_min, &child_nat);
-          minimum = MAX (0, child_min - style->ythickness);
-          natural = MAX (0, child_nat - style->ythickness);
+          minimum = MAX (0, child_min - padding.top);
+          natural = MAX (0, child_nat - padding.top);
         }
     }
   else
@@ -819,17 +914,15 @@ gtk_frame_get_preferred_size (GtkWidget      *request,
         }
     }
 
-  border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
-
   if (orientation == GTK_ORIENTATION_HORIZONTAL)
     {
-      minimum += (border_width + style->xthickness) * 2;
-      natural += (border_width + style->xthickness) * 2;
+      minimum += (border_width * 2) + padding.left + padding.right;
+      natural += (border_width * 2) + padding.left + padding.right;
     }
   else
     {
-      minimum += (border_width + style->ythickness) * 2;
-      natural += (border_width + style->ythickness) * 2;
+      minimum += (border_width * 2) + padding.top + padding.bottom;
+      natural += (border_width * 2) + padding.top + padding.bottom;
     }
 
  if (minimum_size)
@@ -867,18 +960,18 @@ gtk_frame_get_preferred_height_for_width (GtkWidget *request,
   GtkFrame *frame = GTK_FRAME (widget);
   GtkFramePrivate *priv = frame->priv;
   GtkBin *bin = GTK_BIN (widget);
-  GtkStyle *style;
+  GtkBorder padding;
   gint child_min, child_nat, label_width;
   gint minimum, natural;
   guint border_width;
 
-  style = gtk_widget_get_style (widget);
-
+  get_padding_and_border (frame, &padding);
   border_width = gtk_container_get_border_width (GTK_CONTAINER (widget));
-  minimum      = (border_width + style->ythickness) * 2;
-  natural      = (border_width + style->ythickness) * 2;
 
-  width -= (border_width + style->xthickness) * 2;
+  minimum = (border_width * 2) + padding.top + padding.bottom;
+  natural = (border_width * 2) + padding.top + padding.bottom;
+
+  width -= (border_width * 2) + padding.left + padding.right;
   label_width = width - 2 * LABEL_PAD + 2 * LABEL_SIDE_PAD;
 
   if (priv->label_widget && gtk_widget_get_visible (priv->label_widget))