Added copyright lines for files I've edited this year.

[synfig.git] / synfig-core / trunk / src / synfig / valuenode_duplicate.cpp

diff --git a/synfig-core/trunk/src/synfig/valuenode_duplicate.cpp b/synfig-core/trunk/src/synfig/valuenode_duplicate.cpp
index 4c6ce2a..a8e5801 100644 (file)
--- a/synfig-core/trunk/src/synfig/valuenode_duplicate.cpp
+++ b/synfig-core/trunk/src/synfig/valuenode_duplicate.cpp
@@ -6,7 +6,7 @@
 **
 **     \legal
 **     Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-**     Copyright (c) 2007 Chris Moore
+**     Copyright (c) 2007, 2008 Chris Moore
 **
 **     This package is free software; you can redistribute it and/or
 **     modify it under the terms of the GNU General Public License as
@@ -55,18 +55,19 @@ ValueNode_Duplicate::ValueNode_Duplicate(const ValueBase::Type &x):
 {
 }
 
-ValueNode_Duplicate::ValueNode_Duplicate(const ValueNode::Handle &x):
-       LinkableValueNode(x->get_type())
+ValueNode_Duplicate::ValueNode_Duplicate(const ValueBase &x):
+       LinkableValueNode(x.get_type())
 {
-       set_link("from", ValueNode_Const::create(int(0)));
-       set_link("to",   ValueNode_Const::create(int(3)));
-       set_link("step", ValueNode_Const::create(int(1)));
+       set_link("from", ValueNode_Const::create(Real(1.0)));
+       set_link("to",   ValueNode_Const::create(x.get(Real())));
+       set_link("step", ValueNode_Const::create(Real(1.0)));
+       index = 1.0;
 }
 
 ValueNode_Duplicate*
 ValueNode_Duplicate::create(const ValueBase &x)
 {
-       return new ValueNode_Duplicate(ValueNode_Const::create(x));
+       return new ValueNode_Duplicate(x);
 }
 
 LinkableValueNode*
@@ -81,26 +82,24 @@ ValueNode_Duplicate::~ValueNode_Duplicate()
 }
 
 bool
-ValueNode_Duplicate::set_link_vfunc(int i,ValueNode::Handle x)
+ValueNode_Duplicate::set_link_vfunc(int i,ValueNode::Handle value)
 {
-       assert(i >= 0 && i < link_count());
+       assert(i>=0 && i<link_count());
+
        switch(i)
        {
-       case 0:  from_ = x; break;
-       case 1:  to_   = x; break;
-       case 2:  step_ = x; break;
-       default: return false;
+       case 0: CHECK_TYPE_AND_SET_VALUE(from_, ValueBase::TYPE_REAL);
+       case 1: CHECK_TYPE_AND_SET_VALUE(to_,   ValueBase::TYPE_REAL);
+       case 2: CHECK_TYPE_AND_SET_VALUE(step_, ValueBase::TYPE_REAL);
        }
-
-       signal_child_changed()(i);
-       signal_value_changed()();
-       return true;
+       return false;
 }
 
 ValueNode::LooseHandle
 ValueNode_Duplicate::get_link_vfunc(int i)const
 {
-       assert(i >= 0 && i < link_count());
+       assert(i>=0 && i<link_count());
+
        if(i==0) return from_;
        if(i==1) return to_;
        if(i==2) return step_;
@@ -117,7 +116,8 @@ ValueNode_Duplicate::link_count()const
 String
 ValueNode_Duplicate::link_local_name(int i)const
 {
-       assert(i >= 0 && i < link_count());
+       assert(i>=0 && i<link_count());
+
        if(i==0) return _("From");
        if(i==1) return _("To");
        if(i==2) return _("Step");
@@ -127,7 +127,8 @@ ValueNode_Duplicate::link_local_name(int i)const
 String
 ValueNode_Duplicate::link_name(int i)const
 {
-       assert(i >= 0 && i < link_count());
+       assert(i>=0 && i<link_count());
+
        if(i==0) return "from";
        if(i==1) return "to";
        if(i==2) return "step";
@@ -147,16 +148,17 @@ ValueNode_Duplicate::get_link_index_from_name(const String &name)const
 void
 ValueNode_Duplicate::reset_index(Time t)const
 {
-       int from = (*from_)(t).get(int());
+       Real from = (*from_)(t).get(Real());
        index = from;
 }
 
 bool
 ValueNode_Duplicate::step(Time t)const
 {
-       int from = (*from_)(t).get(int());
-       int to   = (*to_  )(t).get(int());
-       int step = (*step_)(t).get(int());
+       Real from = (*from_)(t).get(Real());
+       Real to   = (*to_  )(t).get(Real());
+       Real step = (*step_)(t).get(Real());
+       Real prev = index;
 
        if (step == 0) return false;
 
@@ -164,22 +166,22 @@ ValueNode_Duplicate::step(Time t)const
 
        if (from < to)
        {
-               index += step;
-               return index <= to;
+               if ((index += step) <= to) return true;
        }
        else
-       {
-               index -= step;
-               return index >= to;
-       }
+               if ((index -= step) >= to) return true;
+
+       // at the end of the loop, leave the index at the last value that was used
+       index = prev;
+       return false;
 }
 
 int
 ValueNode_Duplicate::count_steps(Time t)const
 {
-       int from = (*from_)(t).get(int());
-       int to   = (*to_  )(t).get(int());
-       int step = (*step_)(t).get(int());
+       Real from = (*from_)(t).get(Real());
+       Real to   = (*to_  )(t).get(Real());
+       Real step = (*step_)(t).get(Real());
 
        if (step == 0) return 1;
 
@@ -187,7 +189,7 @@ ValueNode_Duplicate::count_steps(Time t)const
 }
 
 ValueBase
-ValueNode_Duplicate::operator()(Time t)const
+ValueNode_Duplicate::operator()(Time t __attribute__ ((unused)))const
 {
        return index;
 }
@@ -205,7 +207,8 @@ ValueNode_Duplicate::get_local_name()const
 }
 
 bool
-ValueNode_Duplicate::check_type(ValueBase::Type type)
+ValueNode_Duplicate::check_type(ValueBase::Type type __attribute__ ((unused)))
 {
-       return type==ValueBase::TYPE_INTEGER;
+       // never offer this as a choice.  it's used automatically by the 'Duplicate' layer.
+       return false;
 }