From 2e781fdf66683948c4db80d0dc08476e171447a2 Mon Sep 17 00:00:00 2001
From: johanengelen <johanengelen@users.sourceforge.net>
Date: Sun, 26 Aug 2007 12:44:19 +0000
Subject: [PATCH] 2 LPE things: * Add changed signal to LPE PathParameter *
 removed origin parameter from path along path as it is not necessary any more

---
 src/live_effects/lpe-skeletalstrokes.cpp | 21 ++++++---------------
 src/live_effects/lpe-skeletalstrokes.h   |  2 --
 src/live_effects/parameter/path.cpp      |  1 +
 src/live_effects/parameter/path.h        |  1 +
 4 files changed, 8 insertions(+), 17 deletions(-)

diff --git a/src/live_effects/lpe-skeletalstrokes.cpp b/src/live_effects/lpe-skeletalstrokes.cpp
index 4e8a589ce..162dfe8a4 100644
--- a/src/live_effects/lpe-skeletalstrokes.cpp
+++ b/src/live_effects/lpe-skeletalstrokes.cpp
@@ -59,14 +59,10 @@ static const Util::EnumDataConverter<SkelCopyType> SkelCopyTypeConverter(SkelCop
 LPESkeletalStrokes::LPESkeletalStrokes(LivePathEffectObject *lpeobject) :
     Effect(lpeobject),
     pattern(_("Pattern"), _("Path to put along path"), "pattern", &wr, this, "M0,0 L1,1"),
-    origin(_("Origin"), _("Startpoint of the pattern path to put along path"), "origin", &wr, this, Geom::Point(0,0)),
     copytype(_("Copytype"), _("How to shape the pattern path along the path"), "copytype", SkelCopyTypeConverter, &wr, this, SSCT_SINGLE_STRETCHED)
 {
-    registerParameter( dynamic_cast<Parameter *>(&origin) );
     registerParameter( dynamic_cast<Parameter *>(&pattern) );
     registerParameter( dynamic_cast<Parameter *>(&copytype) );
-
-    pattern.signal_path_pasted.connect(sigc::mem_fun(*this, &LPESkeletalStrokes::on_pattern_pasted));
 }
 
 LPESkeletalStrokes::~LPESkeletalStrokes()
@@ -91,9 +87,13 @@ LPESkeletalStrokes::doEffect (Geom::Piecewise<Geom::D2<Geom::SBasis> > & pwd2_in
     n = force_continuity(remove_short_cuts(n,.1));
 
     D2<Piecewise<SBasis> > patternd2 = make_cuts_independant(pattern);
-    Piecewise<SBasis> x=Piecewise<SBasis>(patternd2[0]-origin[0]);
-    Piecewise<SBasis> y=Piecewise<SBasis>(patternd2[1]-origin[1]);
+    Piecewise<SBasis> x=Piecewise<SBasis>(patternd2[0]);
+    Piecewise<SBasis> y=Piecewise<SBasis>(patternd2[1]);
     Interval pattBnds = bounds_exact(x);
+    x -= pattBnds.min();
+    Interval pattBndsY = bounds_exact(y);
+    y -= (pattBndsY.max()+pattBndsY.min())/2;
+
 
     int nbCopies = int(uskeleton.cuts.back()/pattBnds.extent());
     double scaling = 1;
@@ -121,7 +121,6 @@ LPESkeletalStrokes::doEffect (Geom::Piecewise<Geom::D2<Geom::SBasis> > & pwd2_in
 
     double pattWidth = pattBnds.extent() * scaling;
 
-    x-=pattBnds.min();
     if (scaling != 1)
         x*=scaling;
 
@@ -134,14 +133,6 @@ LPESkeletalStrokes::doEffect (Geom::Piecewise<Geom::D2<Geom::SBasis> > & pwd2_in
     return output;
 }
 
-void
-LPESkeletalStrokes::on_pattern_pasted()
-{
-    // a new pattern was pasted through the dialog.  overwrite the origin thingie to the first point of the path
-    origin.param_setValue(pattern.valueAt(0));
-}
-
-
 
 } // namespace LivePathEffect
 } /* namespace Inkscape */
diff --git a/src/live_effects/lpe-skeletalstrokes.h b/src/live_effects/lpe-skeletalstrokes.h
index 159a82f57..b92ea8ecf 100644
--- a/src/live_effects/lpe-skeletalstrokes.h
+++ b/src/live_effects/lpe-skeletalstrokes.h
@@ -11,7 +11,6 @@
 
 #include "live_effects/effect.h"
 #include "live_effects/parameter/path.h"
-#include "live_effects/parameter/point.h"
 #include "live_effects/parameter/enum.h"
 
 namespace Inkscape {
@@ -34,7 +33,6 @@ public:
 
 private:
     PathParam  pattern;
-    PointParam origin;
     EnumParam<SkelCopyType> copytype;
 
     void on_pattern_pasted();
diff --git a/src/live_effects/parameter/path.cpp b/src/live_effects/parameter/path.cpp
index f24fa933a..343a2f840 100644
--- a/src/live_effects/parameter/path.cpp
+++ b/src/live_effects/parameter/path.cpp
@@ -67,6 +67,7 @@ PathParam::param_readSVGValue(const gchar * strvalue)
             newpath.concat( temppath[i].toPwSb() );
         }
         *( dynamic_cast<Geom::Piecewise<Geom::D2<Geom::SBasis> > *> (this) ) = newpath;
+        signal_path_changed.emit();
         return true;
     }
 
diff --git a/src/live_effects/parameter/path.h b/src/live_effects/parameter/path.h
index 0b0d5f633..e26611b85 100644
--- a/src/live_effects/parameter/path.h
+++ b/src/live_effects/parameter/path.h
@@ -41,6 +41,7 @@ public:
     void param_set_default();
 
     sigc::signal <void> signal_path_pasted;
+    sigc::signal <void> signal_path_changed;
 
 private:
     PathParam(const PathParam&);
-- 
2.30.2