X-Git-Url: https://git.pterodactylus.net/?a=blobdiff_plain;f=synfig-studio%2Ftags%2F0.61.08%2Fsrc%2Fsynfigapp%2Fblineconvert.h;fp=synfig-studio%2Ftags%2F0.61.08%2Fsrc%2Fsynfigapp%2Fblineconvert.h;h=2b27187fbf62a367ca750b4164a7c7887da89e62;hb=79fcd5b32f0accf9f1d13f9b6ded0d628e6f4b33;hp=0000000000000000000000000000000000000000;hpb=c1f365570ac471ede0668ad976fad345747aa8de;p=synfig.git

diff --git a/synfig-studio/tags/0.61.08/src/synfigapp/blineconvert.h b/synfig-studio/tags/0.61.08/src/synfigapp/blineconvert.h
new file mode 100644
index 0000000..2b27187
--- /dev/null
+++ b/synfig-studio/tags/0.61.08/src/synfigapp/blineconvert.h
@@ -0,0 +1,116 @@
+/* === S Y N F I G ========================================================= */
+/*!	\file blineconvert.h
+**	\brief Template Header
+**
+**	$Id$
+**
+**	\legal
+**	Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+**	This package is free software; you can redistribute it and/or
+**	modify it under the terms of the GNU General Public License as
+**	published by the Free Software Foundation; either version 2 of
+**	the License, or (at your option) any later version.
+**
+**	This package is distributed in the hope that it will be useful,
+**	but WITHOUT ANY WARRANTY; without even the implied warranty of
+**	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+**	General Public License for more details.
+**	\endlegal
+*/
+/* ========================================================================= */
+
+/* === S T A R T =========================================================== */
+
+#ifndef __SYNFIG_BLINE_CONVERT_H
+#define __SYNFIG_BLINE_CONVERT_H
+
+/* === H E A D E R S ======================================================= */
+
+#include <synfig/general.h>
+#include <synfig/blinepoint.h>
+#include <list>
+#include <vector>
+
+/* === M A C R O S ========================================================= */
+
+/* === T Y P E D E F S ===================================================== */
+
+/* === C L A S S E S & S T R U C T S ======================================= */
+
+namespace synfigapp {
+
+class BLineConverter
+{
+public:
+	struct cpindex
+	{
+		int 		curind;
+		synfig::Real	tangentscale;
+		synfig::Real	error;	//negative error will indicate invalid;
+
+		cpindex(int ci, synfig::Real s=0, synfig::Real e=-1)
+		:curind(ci), tangentscale(s), error(e)
+		{}
+
+		cpindex(const cpindex & o)
+		:curind(o.curind), tangentscale(o.tangentscale), error(o.error)
+		{}
+
+		const cpindex & operator=(const cpindex & rhs)
+		{
+			curind = rhs.curind;
+			tangentscale = rhs.tangentscale;
+			error = rhs.error;
+			return *this;
+		}
+
+		bool operator<(const cpindex &rhs) const
+		{
+			return curind < rhs.curind;
+		}
+
+		//point is obviously in[curind]
+		//tangent scale will get reset to the smallest (or something else depending on experimentation)
+	};
+
+private:
+	//cached data
+	std::vector<synfig::Point>	point_cache;	//the preprocessed input cache
+	std::vector<synfig::Real>	width_cache;
+
+	//temporary point storage for vector calc
+	std::vector<synfig::Point>	ftemp;
+
+	std::vector<synfig::Vector>	deriv; //the derivative cache
+	std::vector<synfig::Real>	curvature; //the curvature cache
+
+	std::vector<int>			break_tangents; //the break point cache
+
+	std::vector<synfig::Real> 	cum_dist,	//cumulative distance
+								this_dist; //distance between adjacent segments
+
+	std::vector<synfig::Point>	work; //the working point cache for the entire curve
+	std::vector<cpindex> 		curind;
+
+	//function parameters
+	void clear();
+
+public:
+	synfig::Real width;
+
+	//Converter properties
+	synfig::Real pixelwidth;
+	synfig::Real smoothness; //actual error will be smoothness*pixelwidth (for global set pixelwidth = 1)
+
+	BLineConverter();
+
+	static void EnforceMinWidth(std::list<synfig::BLinePoint> &bline, synfig::Real min_pressure);
+	void operator()(std::list<synfig::BLinePoint> &out, const std::list<synfig::Point> &in,const std::list<synfig::Real> &in_w);
+};
+
+}; // END of namespace synfigapp
+
+/* === E N D =============================================================== */
+
+#endif