Add renderer backends

Package.swift

@@ -26,6 +26,22 @@ let package = Package(
             name: "lodepng",
             dependencies: [],
        	    path: "framework/lodepng"),
+	.target(
+            name: "CPPAGGRenderer",
+            dependencies: ["AGG","lodepng"],
+    	    path: "framework/CPPAGGRenderer"),
+	.target(
+            name: "CAGGRenderer",
+            dependencies: ["CPPAGGRenderer"],
+    	    path: "framework/CAGGRenderer"),
+	.target(
+            name: "Util",
+            dependencies: [],
+       	    path: "framework/Util"),
+	.target(
+            name: "Renderer",
+            dependencies: ["Util","CAGGRenderer"],
+       	    path: "framework/Renderer"),
 	.target(
             name: "LinePlot",
             dependencies: [],

framework/CAGGRenderer/CAGGRenderer.cpp

@@ -0,0 +1,47 @@
+#include "include/CAGGRenderer.h"
+#include "CPPAGGRenderer.h"
+#include <iostream>
+
+const void * initializePlot(float w, float h){
+  return CPPAGGRenderer::initializePlot(w, h);
+}
+
+void draw_rect(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object){
+  CPPAGGRenderer::draw_rect(x, y, thickness, r, g, b, a, object);
+}
+
+void draw_solid_rect(const float *x, const float *y, float r, float g, float b, float a, const void *object){
+  CPPAGGRenderer::draw_solid_rect(x, y, r, g, b, a, object);
+}
+
+void draw_line(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object){
+  CPPAGGRenderer::draw_line(x, y, thickness, r, g, b, a, object);
+}
+
+void draw_transformed_line(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object){
+  CPPAGGRenderer::draw_transformed_line(x, y, thickness, r, g, b, a, object);
+}
+
+void draw_plot_lines(const float *x, const float *y, int size, float thickness, float r, float g, float b, float a, const void *object){
+  CPPAGGRenderer::draw_plot_lines(x, y, size, thickness, r, g, b, a, object);
+}
+
+void draw_text(const char *s, float x, float y, float size, float thickness, const void *object){
+  CPPAGGRenderer::draw_text(s, x, y, size, thickness, object);
+}
+
+void draw_transformed_text(const char *s, float x, float y, float size, float thickness, const void *object){
+  CPPAGGRenderer::draw_transformed_text(s, x, y, size, thickness, object);
+}
+
+void draw_rotated_text(const char *s, float x, float y, float size, float thickness, float angle, const void *object){
+  CPPAGGRenderer::draw_rotated_text(s, x, y, size, thickness, angle, object);
+}
+
+float get_text_width(const char *s, float size, const void *object){
+  return CPPAGGRenderer::get_text_width(s, size, object);
+}
+
+void save_image(const char *s, const void *object){
+  CPPAGGRenderer::save_image(s, object);
+}

framework/CAGGRenderer/include/CAGGRenderer.h

@@ -0,0 +1,29 @@
+#ifdef __cplusplus
+extern "C"  {
+#endif
+
+const void * initializePlot(float w, float h);
+
+void draw_rect(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object);
+
+void draw_solid_rect(const float *x, const float *y, float r, float g, float b, float a, const void *object);
+
+void draw_line(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object);
+
+void draw_transformed_line(const float *x, const float *y, float thickness, float r, float g, float b, float a, const void *object);
+
+void draw_plot_lines(const float *x, const float *y, int size, float thickness, float r, float g, float b, float a, const void *object);
+
+void draw_text(const char *s, float x, float y, float size, float thickness, const void *object);
+
+void draw_transformed_text(const char *s, float x, float y, float size, float thickness, const void *object);
+
+void draw_rotated_text(const char *s, float x, float y, float size, float thickness, float angle, const void *object);
+
+float get_text_width(const char *s, float size, const void *object);
+
+void save_image(const char *s, const void *object);
+
+#ifdef __cplusplus
+}
+#endif