1 files changed, 66 insertions, 0 deletions
diff --git a/dw/tools.hh b/dw/tools.hh
new file mode 100644
index 00000000..2f8ff0b5
--- /dev/null
+++ b/dw/tools.hh
@@ -0,0 +1,66 @@
+#ifndef __DW_TOOLS_HH__
+#define __DW_TOOLS_HH__
+
+#ifndef __INCLUDED_FROM_DW_CORE_HH__
+#   error Do not include this file directly, use "core.hh" instead.
+#endif
+
+#include "core.hh"
+#include "../lout/debug.hh"
+
+namespace dw {
+namespace core {
+
+/**
+ * \brief Hold arguments passed to dw::core::Widget::sizeRequest and
+ * dw::core::Widget::getExtremes, as described in \ref dw-size-request-pos.
+ */
+class SizeParams
+{
+private:
+   int numPos;
+   Widget **references;
+   int *x, *y;
+
+   void init ();
+   void cleanup ();
+
+   inline void debugPrint () {
+      DBG_IF_RTFL {
+         DBG_OBJ_SET_NUM ("numPos", numPos);
+         for (int i = 0; i < numPos; i++) {
+            DBG_OBJ_ARRSET_PTR ("references", i, references[i]);
+            DBG_OBJ_ARRSET_NUM ("x", i, x[i]);
+            DBG_OBJ_ARRSET_NUM ("y", i, y[i]);
+         }
+      }
+   }
+   
+public:
+   SizeParams ();
+   SizeParams (int numPos, Widget **references, int *x, int *y);
+   SizeParams (const SizeParams &other);
+   ~SizeParams ();
+
+   SizeParams &operator=(const SizeParams &other);
+   
+   void fill (int numPos, Widget **references, int *x, int *y);
+   void forChild (Widget *parent, Widget *child, int xRel, int yRel,
+                  SizeParams *childParams);
+   bool findReference (Widget *reference, int *x, int *y);
+
+   bool isEquivalent (SizeParams *other);
+
+   inline int getNumPos () { return numPos; }
+   inline Widget **getReferences () { return references; }
+   inline int *getX () { return x; }
+   inline int *getY () { return y; }
+   inline Widget *getReference (int i) { return references[i]; }
+   inline int getX (int i) { return x[i]; }
+   inline int getY (int i) { return y[i]; }
+};
+ 
+} // namespace core
+} // namespace dw
+
+#endif // __DW_TOOLS_HH__