From: David Gow <david@ingeniumdigital.com>
Date: Wed, 27 Aug 2014 08:24:25 +0000 (+0800)
Subject: Add a vec2 struct.
X-Git-Url: https://git.ucc.asn.au/?p=ipdf%2Fcode.git;a=commitdiff_plain;h=b04b227b04626afb2a8bf665dbcbf035bfa1cef8

Add a vec2 struct.
---

diff --git a/src/document.cpp b/src/document.cpp
index 6c39079..0428aa9 100644
--- a/src/document.cpp
+++ b/src/document.cpp
@@ -152,18 +152,14 @@ int Document::ClipObjectToQuadChild(int object_id, QuadTreeNodeChildren type)
 			obj_bounds.h += (1 - (obj_bounds.y + obj_bounds.h));
 		}
 		Rect child_node_bounds = TransformFromQuadChild(obj_bounds, type);
-		Rect clip_bezier_bounds;
-		clip_bezier_bounds.x = (child_node_bounds.x - m_objects.bounds[object_id].x) / m_objects.bounds[object_id].w;
-		clip_bezier_bounds.y = (child_node_bounds.y - m_objects.bounds[object_id].y) / m_objects.bounds[object_id].h;
-		clip_bezier_bounds.w = child_node_bounds.w / m_objects.bounds[object_id].w;
-		clip_bezier_bounds.h = child_node_bounds.h / m_objects.bounds[object_id].h;
+		Rect clip_bezier_bounds = TransformRectCoordinates(m_objects.bounds[object_id], child_node_bounds);
 		std::vector<Bezier> new_curves = Bezier(m_objects.beziers[m_objects.data_indices[object_id]], child_node_bounds).ClipToRectangle(clip_bezier_bounds);
 		for (size_t i = 0; i < new_curves.size(); ++i)
 		{
 			Rect new_bounds = TransformToQuadChild(m_objects.bounds[object_id], type);
-			new_bounds = TransformToQuadChild(new_curves[i].SolveBounds(), type);
-			Bezier new_curve_data = new_curves[i].ToRelative(new_bounds);
-			unsigned index = AddBezierData(new_curve_data);
+			//new_bounds = TransformToQuadChild(new_curves[i].SolveBounds(), type);
+			//Bezier new_curve_data = new_curves[i].ToRelative(new_bounds);
+			unsigned index = AddBezierData(new_curves[i]);
 			m_objects.bounds.push_back(new_bounds);
 			m_objects.types.push_back(BEZIER);
 			m_objects.data_indices.push_back(index);
diff --git a/src/real.h b/src/real.h
index 406cb8e..2be3fdd 100644
--- a/src/real.h
+++ b/src/real.h
@@ -82,7 +82,31 @@ namespace IPDF
 		return r;
 	}
 	
+	struct Vec2
+	{
+		Real x;
+		Real y;
+		Vec2() : x(0), y(0) {}
+		Vec2(Real _x, Real _y) : x(_x), y(_y) {}
 	
+		bool operator==(const Vec2& other) const { return (x == other.x) && (y == other.y); }
+		bool operator!=(const Vec2& other) const { return !(*this == other); }
+		
+		Vec2& operator=(const Vec2& other) { x = other.x; y = other.y; return *this; }
+		Vec2& operator+=(const Vec2& other) { x += other.x; y += other.y; return *this; }
+		Vec2& operator-=(const Vec2& other) { x -= other.x; y -= other.y; return *this; }
+		Vec2& operator*=(const Real& lambda) { x *= lambda; y *= lambda; return *this; }
+		Vec2& operator/=(const Real& lambda) { x /= lambda; y /= lambda; return *this; }
+
+		Vec2 operator+(const Vec2& other) const { return Vec2(x + other.x, y + other.y); }
+		Vec2 operator-(const Vec2& other) const { return Vec2(x - other.x, y - other.y); }
+		Vec2 operator*(const Real& lambda) const { return Vec2(x * lambda, y * lambda); }
+		Vec2 operator/(const Real& lambda) const { return Vec2(x / lambda, y / lambda); }
+
+		const Real SquareLength() const { return (x*x + y*y); }
+	
+	};
+
 
 }
 
diff --git a/src/rect.h b/src/rect.h
index 7b7adc1..bf7a242 100644
--- a/src/rect.h
+++ b/src/rect.h
@@ -27,6 +27,26 @@ namespace IPDF
 			return true;
 		}
 	};
+
+	inline Rect TransformRectCoordinates(const Rect& view, const Rect& r)
+	{
+		Rect out;
+		out.x = (r.x - view.x) / view.w;
+		out.y = (r.y - view.y) / view.h;
+		out.w = r.w / view.w;
+		out.h = r.h / view.h;
+		return out;
+	}
+
+	inline Vec2 TransformPointCoordinates(const Rect& view, const Vec2& v)
+	{
+		Vec2 out;
+		out.x = (v.x - view.x) / view.w;
+		out.y = (v.y - view.y) / view.h;
+		return out;
+	}
+
+
 }
 
 #endif //_RECT_H
diff --git a/src/view.h b/src/view.h
index 56e80a3..abfbefe 100644
--- a/src/view.h
+++ b/src/view.h
@@ -6,8 +6,8 @@
 #include "framebuffer.h"
 #include "objectrenderer.h"
 
-#define USE_GPU_TRANSFORM false
-#define USE_GPU_RENDERING false
+#define USE_GPU_TRANSFORM true 
+#define USE_GPU_RENDERING true
 #define USE_SHADING !(USE_GPU_RENDERING) && true
 
 namespace IPDF