1 files changed, 192 insertions, 0 deletions
diff --git a/dw/tools.cc b/dw/tools.cc
new file mode 100644
index 00000000..547c2585
--- /dev/null
+++ b/dw/tools.cc
@@ -0,0 +1,192 @@
+#include "core.hh"
+
+namespace dw {
+namespace core {
+
+using namespace lout::misc;
+   
+SizeParams::SizeParams ()
+{
+   DBG_OBJ_CREATE ("dw::core::SizeParams");
+   init ();
+   debugPrint ();
+}
+
+SizeParams::SizeParams (int numPos, Widget **references, int *x, int *y)
+{
+   DBG_OBJ_CREATE ("dw::core::SizeParams");
+   init ();
+   fill (numPos, references, x, y);
+   debugPrint ();
+}
+
+SizeParams::SizeParams (const SizeParams &other)
+{
+   DBG_OBJ_CREATE ("dw::core::SizeParams");
+   init ();
+   fill (other.numPos, other.references, other.x, other.y);
+   debugPrint ();
+}
+   
+SizeParams::~SizeParams ()
+{
+   cleanup ();
+   DBG_OBJ_DELETE ();
+}
+
+SizeParams &SizeParams::operator=(const SizeParams &other)
+{
+   cleanup ();
+   init ();
+   fill (other.numPos, other.references, other.x, other.y);
+   debugPrint ();
+   return *this;
+}
+
+void SizeParams::init ()
+{
+   numPos = 0;
+   references = NULL;
+   x = y = NULL;
+}
+
+void SizeParams::cleanup ()
+{
+   if (references)
+      delete[] references;
+   if (x)
+      delete[] x;
+   if (y)
+      delete[] y;
+
+   init ();
+}
+
+void SizeParams::fill (int numPos, Widget **references, int *x, int *y)
+{
+   DBG_OBJ_ENTER ("resize", 0, "fill", "%d, ...", numPos);
+
+   cleanup ();
+   
+   this->numPos = numPos;
+
+   this->references = new Widget*[numPos];
+   this->x = new int[numPos];
+   this->y = new int[numPos];
+   
+   for (int i = 0; i < numPos; i++) {
+      this->references[i] = references[i];
+      this->x[i] = x[i];
+      this->y[i] = y[i];
+   }
+
+   debugPrint ();
+
+   DBG_OBJ_LEAVE ();
+}
+
+void SizeParams::forChild (Widget *parent, Widget *child, int xRel, int yRel,
+                           SizeParams *childParams)
+{
+   DBG_OBJ_ENTER ("resize", 0, "forChild", "%p, %p, %d, %d, %p",
+                  parent, child, xRel, yRel, childParams);
+   
+   int numChildReferences = child->numSizeRequestReferences ();
+
+   childParams->numPos = 0;
+   childParams->references = new Widget*[numChildReferences];
+   childParams->x = new int[numChildReferences];
+   childParams->y = new int[numChildReferences];
+
+   for (int i = 0; i < numChildReferences; i++) {
+      Widget *childReference = child->sizeRequestReference (i);
+      
+      if (childReference == parent) {
+         childParams->references[childParams->numPos] = childReference;
+         childParams->x[childParams->numPos] = xRel;
+         childParams->y[childParams->numPos] = yRel;
+         childParams->numPos++;
+      } else {
+         bool found = false;
+         for (int j = 0; !found && j < numPos; j++) {
+            if (childReference == references[j]) {
+               found = true;
+               childParams->references[childParams->numPos] = childReference;
+               childParams->x[childParams->numPos] = x[j] + xRel;
+               childParams->y[childParams->numPos] = y[j] + yRel;
+               childParams->numPos++;
+            } 
+         }
+      }
+   }
+
+   childParams->debugPrint ();
+
+   DBG_OBJ_LEAVE ();
+}
+
+bool SizeParams::findReference (Widget *reference, int *x, int *y)
+{
+   DBG_OBJ_ENTER ("resize", 0, "findReference", "%p", reference);
+
+   bool found = false;
+   for (int i = 0; i < numPos && !found; i++) {
+      if (reference == references[i]) {
+         if (x)
+            *x = this->x[i];
+         if (y)
+            *y = this->y[i];
+         found = true;
+      }
+   }
+
+   if (found) {
+      if (x && y)
+         DBG_OBJ_LEAVE_VAL ("true, x = %d, y = %d", *x, *y);
+      else if (x)
+         DBG_OBJ_LEAVE_VAL ("true, x = %d", *x);
+      else if (y)
+         DBG_OBJ_LEAVE_VAL ("true, y = %d", *y);
+      else
+         DBG_OBJ_LEAVE_VAL ("%s", "true");
+   } else
+      DBG_OBJ_LEAVE_VAL ("%s", "false");
+
+   return found;
+}
+
+/**
+ * Compares two instances, but considers a change in the order of the reference
+ * widgets as equivalent.
+ */
+bool SizeParams::isEquivalent (SizeParams *other)
+{
+   DBG_OBJ_ENTER ("resize", 0, "isEquivalent", "%p", other);
+   bool result;
+   
+   if (numPos != other->numPos)
+      result = false;
+   else {
+      result = true;
+      
+      for (int i = 0; result && i < numPos; i++) {
+         bool otherFound = false;
+         for (int j = 0; !otherFound && j < numPos; j++) {
+            if (references[i] == other->references[j]) {
+               otherFound = true;
+               if (!(x[i] == other->x[j] && y[i] == other->y[j]))
+                  result = false;
+            }
+         }
+         
+         if (!otherFound)
+            result = false;
+      }
+   }
+   
+   DBG_OBJ_LEAVE_VAL ("%s", boolToStr (result));
+   return result;
+}
+  
+} // namespace core
+} // namespace dw