Initial revision

1 files changed, 228 insertions, 0 deletions

diff --git a/gtk/gtkbbox.c b/gtk/gtkbbox.c
new file mode 100644
index 0000000000..818493f9a2
--- /dev/null
+++ b/gtk/gtkbbox.c
@@ -0,0 +1,228 @@
+/* GTK - The GIMP Toolkit
+ * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the Free
+ * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+#include "gtkbbox.h"
+
+
+static void gtk_button_box_class_init    (GtkButtonBoxClass   *klass);
+static void gtk_button_box_init          (GtkButtonBox        *box);
+
+
+static gint default_child_min_width = 85;
+static gint default_child_min_height = 27;
+static gint default_child_ipad_x = 7;
+static gint default_child_ipad_y = 0;
+
+
+guint
+gtk_button_box_get_type ()
+{
+  static guint button_box_type = 0;
+
+  if (!button_box_type)
+    {
+      GtkTypeInfo button_box_info =
+      {
+	"GtkButtonBox",
+	sizeof (GtkButtonBox),
+	sizeof (GtkButtonBoxClass),
+	(GtkClassInitFunc) gtk_button_box_class_init,
+	(GtkObjectInitFunc) gtk_button_box_init,
+	(GtkArgFunc) NULL,
+      };
+
+      button_box_type = gtk_type_unique (gtk_box_get_type (), &button_box_info);
+    }
+
+  return button_box_type;
+}
+
+static void
+gtk_button_box_class_init (GtkButtonBoxClass *class)
+{
+  GtkWidgetClass *widget_class;
+
+  widget_class = (GtkWidgetClass*) class;
+}
+
+static void
+gtk_button_box_init (GtkButtonBox *button_box)
+{
+  button_box->spacing = GTK_BUTTONBOX_DEFAULT;
+  button_box->child_min_width = GTK_BUTTONBOX_DEFAULT;
+  button_box->child_min_height = GTK_BUTTONBOX_DEFAULT;
+  button_box->child_ipad_x = GTK_BUTTONBOX_DEFAULT;
+  button_box->child_ipad_y = GTK_BUTTONBOX_DEFAULT;
+  button_box->layout_style = GTK_BUTTONBOX_DEFAULT;
+}
+
+
+/* set default values for child size and child internal padding */
+/* default spacing is in defined in subclasses */
+
+void gtk_button_box_set_child_size_default (gint width, gint height)
+{
+  default_child_min_width = width;
+  default_child_min_height = height;
+}
+
+void gtk_button_box_set_child_ipadding_default (gint ipad_x, gint ipad_y)
+{
+  default_child_ipad_x = ipad_x;
+  default_child_ipad_y = ipad_y;
+}
+
+/* get default values for child size and child internal padding */
+
+void gtk_button_box_get_child_size_default (gint *width, gint *height)
+{
+  *width = default_child_min_width;
+  *height = default_child_min_height;
+}
+
+void gtk_button_box_get_child_ipadding_default (gint *ipad_x, gint *ipad_y)
+{
+  *ipad_x = default_child_ipad_x;
+  *ipad_y = default_child_ipad_y;
+}
+
+/* set per widget values for spacing, child size and child internal padding */
+
+void gtk_button_box_set_spacing (GtkButtonBox *widget, gint spacing)
+{
+  widget->spacing = spacing;
+}
+
+void gtk_button_box_set_child_size (GtkButtonBox *widget, gint width, gint height)
+{
+  widget->child_min_width = width;
+  widget->child_min_height = height;
+}
+
+void gtk_button_box_set_child_ipadding (GtkButtonBox *widget,
+					gint ipad_x, gint ipad_y)
+{
+  widget->child_ipad_x = ipad_x;
+  widget->child_ipad_y = ipad_y;
+}
+
+void gtk_button_box_set_layout (GtkButtonBox *widget, gint layout_style)
+{
+  widget->layout_style = layout_style;
+}
+
+
+/* get per widget values for spacing, child size and child internal padding */
+
+gint gtk_button_box_get_spacing (GtkButtonBox *widget)
+{
+  return widget->spacing;
+}
+
+void gtk_button_box_get_child_size (GtkButtonBox *widget,
+				     gint *width, gint *height)
+{
+  *width  = widget->child_min_width;
+  *height = widget->child_min_height;
+}
+
+void gtk_button_box_get_child_ipadding (GtkButtonBox *widget,
+					 gint* ipad_x, gint *ipad_y)
+{
+  *ipad_x = widget->child_ipad_x;
+  *ipad_y = widget->child_ipad_y;
+}
+
+gint gtk_button_box_get_layout (GtkButtonBox *widget)
+{
+  return widget->layout_style;
+}
+
+
+
+/* Ask children how much space they require and round up 
+   to match minimum size and internal padding.
+   Returns the size each single child should have. */
+void
+gtk_button_box_child_requisition (GtkWidget *widget,
+				  int *nvis_children,
+				  int *width,
+				  int *height)
+{
+  GtkButtonBox *bbox;
+  GtkBoxChild *child;
+  GList *children;
+  gint nchildren;
+  gint needed_width;
+  gint needed_height;
+  GtkRequisition child_requisition;
+  gint ipad_w;
+  gint ipad_h;
+  gint width_default;
+  gint height_default;
+  gint ipad_x_default;
+  gint ipad_y_default;
+  
+  gint child_min_width;
+  gint child_min_height;
+  gint ipad_x;
+  gint ipad_y;
+  
+  g_return_if_fail (widget != NULL);
+  g_return_if_fail (GTK_IS_BUTTON_BOX (widget));
+
+  bbox = GTK_BUTTON_BOX (widget);
+
+  gtk_button_box_get_child_size_default (&width_default, &height_default);
+  gtk_button_box_get_child_ipadding_default (&ipad_x_default, &ipad_y_default);
+  
+  child_min_width = bbox->child_min_width   != GTK_BUTTONBOX_DEFAULT
+	  ? bbox->child_min_width : width_default;
+  child_min_height = bbox->child_min_height !=GTK_BUTTONBOX_DEFAULT
+	  ? bbox->child_min_height : height_default;
+  ipad_x = bbox->child_ipad_x != GTK_BUTTONBOX_DEFAULT
+	  ? bbox->child_ipad_x : ipad_x_default;
+  ipad_y = bbox->child_ipad_y != GTK_BUTTONBOX_DEFAULT
+	  ? bbox->child_ipad_y : ipad_y_default;
+
+  nchildren = 0;
+  children = GTK_BOX(bbox)->children;
+  needed_width = child_min_width;
+  needed_height = child_min_height;  
+  ipad_w = ipad_x * 2;
+  ipad_h = ipad_y * 2;
+  
+  while (children)
+    {
+      child = children->data;
+      children = children->next;
+
+      if (GTK_WIDGET_VISIBLE (child->widget))
+	{
+	  nchildren += 1;
+	  gtk_widget_size_request (child->widget, &child_requisition);
+	  if (child_requisition.width + ipad_w > needed_width)
+		  needed_width = child_requisition.width + ipad_w;
+	  if (child_requisition.height + ipad_h > needed_height)
+		  needed_height = child_requisition.height + ipad_h;
+	}
+    }
+  
+  *nvis_children = nchildren;
+  *width = needed_width;
+  *height = needed_height;
+}