Import RTFL 0.1.1v0.1.1

1 files changed, 126 insertions, 0 deletions

diff --git a/dwr/graph.hh b/dwr/graph.hh
new file mode 100644
index 0000000..7e0897e
--- /dev/null
+++ b/dwr/graph.hh
@@ -0,0 +1,126 @@
+#ifndef __DWR_GRAPH_HH__
+#define __DWR_GRAPH_HH__
+
+#include "dw/core.hh"
+#include "lout/misc.hh"
+
+namespace rtfl {
+
+namespace dw {
+
+class Graph: public ::dw::core::Widget
+{
+private:
+   class GraphIterator: public ::dw::core::Iterator
+   {
+   private:
+      int index;
+
+      GraphIterator (Graph *graph, ::dw::core::Content::Type mask, int index);
+
+   public:
+      GraphIterator (Graph *graph, ::dw::core::Content::Type mask, bool atEnd);
+
+      lout::object::Object *clone ();
+      int compareTo (lout::object::Comparable *other);
+
+      bool next ();
+      bool prev ();
+      void highlight (int start, int end, ::dw::core::HighlightLayer layer);
+      void unhighlight (int direction, ::dw::core::HighlightLayer layer);
+      void getAllocation (int start, int end,
+                          ::dw::core::Allocation *allocation);
+   };
+
+   class Node: public lout::object::Object
+   {
+   public:
+      enum { WIDGET, REF } type;
+      union {
+         ::dw::core::Widget *widget;
+         struct {
+            char *text;
+            Node *reference;
+         };
+      };
+      Node *parent;
+      lout::container::typed::List<Node> *children;
+
+      int rootX, rootY;
+      ::dw::core::Requisition rootReq, childrenReq;
+
+      Node (::dw::core::Widget *widget, Node *parent);
+      Node (const char *text, Node *parent);
+      ~Node ();
+   };
+
+   enum { HDIFF = 50, VDIFF = 20, AHEADLEN = 10 };
+
+   lout::container::typed::Vector<Widget> *allWidgets;
+   lout::container::typed::List<Node> *topLevelNodes;
+   ::dw::core::style::Style *refStyle;
+   Node *pressedRefNode;
+   bool inDestructor;
+
+   Node *searchWidget (::dw::core::Widget *widget,
+                       lout::container::typed::List<Node> *list);
+   inline Node *searchWidget (::dw::core::Widget *widget)
+   { return searchWidget (widget, topLevelNodes); }
+
+   void sizeRequest (::dw::core::Requisition *requisition,
+                     lout::container::typed::List<Node> *list);
+   void sizeRequest (::dw::core::Requisition *requisition, Node *node);
+   void getExtremes (::dw::core::Extremes *extremes,
+                     lout::container::typed::List<Node> *list);
+   void getExtremes (::dw::core::Extremes *extremes, Node *node);
+   void sizeAllocate (int x, int y, lout::container::typed::List<Node> *list);
+   void sizeAllocate (int x, int y, Node *node);
+
+   void draw (::dw::core::View *view, ::dw::core::Rectangle *area,
+              lout::container::typed::List<Node> *list);
+   void drawArrows (::dw::core::View *view, ::dw::core::Rectangle *area,
+                    Node *node);
+
+   bool isAncestorOf (Node *n1, Node *n2);
+   void addReference (Node *from, Node *to);
+
+   // TODO Not very efficient. Since there are not many ref nodes,
+   // they could be kept in one list.
+   Node *searchRefNode (::dw::core::MousePositionEvent *event)
+   { return searchRefNode (event, topLevelNodes); }
+   Node *searchRefNode (::dw::core::MousePositionEvent *event,
+                        lout::container::typed::List<Node> *list);
+
+protected:
+   void sizeRequestImpl (::dw::core::Requisition *requisition);
+   void getExtremesImpl (::dw::core::Extremes *extremes);
+   void sizeAllocateImpl (::dw::core::Allocation *allocation);
+
+   bool buttonPressImpl (::dw::core::EventButton *event);
+   bool buttonReleaseImpl (::dw::core::EventButton *event);
+   bool motionNotifyImpl (::dw::core::EventMotion *event);
+   void leaveNotifyImpl (::dw::core::EventCrossing *event);
+
+public:
+   static int CLASS_ID;
+
+   Graph ();
+   ~Graph ();
+
+   void draw (::dw::core::View *view, ::dw::core::Rectangle *area);
+   ::dw::core::Iterator *iterator (::dw::core::Content::Type mask, bool atEnd);
+   void removeChild (Widget *child);
+   void setStyle (::dw::core::style::Style *style);
+
+   void addNode (::dw::core::Widget *widget);
+   void addEdge (::dw::core::Widget *from, ::dw::core::Widget *to);
+   void removeEdge (::dw::core::Widget *from, ::dw::core::Widget *to);
+
+   void setRefStyle (::dw::core::style::Style *style);
+};
+
+} // namespace rtfl
+
+} // namespace dw
+
+#endif // __DWR_GRAPH_HH__