From ae129719e6ff1cb0691638e9483b4e21a93aa7f5 Mon Sep 17 00:00:00 2001
From: Don Pellegrino <don@drexel.edu>
Date: Wed, 01 Jul 2009 22:07:46 +0000
Subject: Modified to use a display list to render the proteins rather than just

points.  This feels much slower but looks much better.
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 86c1dae..abedab7 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -13,6 +13,7 @@ exp004viz_SOURCES = \
 	db/dbconnect.c \
 	exp004viz.c \
 	model/exp004base.c \
+	model/protein_geometry.c \
 	model/selection_info_init.c \
 	model/zoom_info_init.c \
 	util/check_error.c \
@@ -35,8 +36,10 @@ noinst_HEADERS = \
 	controller/selsave.h \
 	controller/set_ortho.h \
 	db/dbconnect.h \
+	model/display_list_index.h \
 	model/exp004base.h \
 	model/exp004state.h \
+	model/protein_geometry.h \
 	model/selection_info.h \
 	model/selection_info_init.h \
 	model/selection_purposes.h \
diff --git a/src/model/display_list_index.h b/src/model/display_list_index.h
new file mode 100644
index 0000000..a68f8a7
--- a/dev/null
+++ b/src/model/display_list_index.h
@@ -0,0 +1,6 @@
+#ifndef DISPLAY_LIST_INDEX
+#define DISPLAY_LIST_INDEX
+
+#define PROTEIN_GEOMETRY 0
+
+#endif // DISPLAY_LIST_INDEX
diff --git a/src/model/exp004state.h b/src/model/exp004state.h
index d151966..1af8a5b 100644
--- a/src/model/exp004state.h
+++ b/src/model/exp004state.h
@@ -23,11 +23,17 @@
 #define SELECT_COLOR_B 0.00
 #define SELECT_COLOR_A 0.75
 
+typedef enum { PROTEIN_GEOMETRY } LISTS;
+
 /*
  * Maintain state of the model.
  */
 typedef struct
 {
+  /* 
+   * Display lists.
+   */
+  unsigned int list_offset;
 
   /* 
    * Track the bounding box of the points.
diff --git a/src/model/protein_geometry.c b/src/model/protein_geometry.c
new file mode 100644
index 0000000..001b578
--- a/dev/null
+++ b/src/model/protein_geometry.c
@@ -0,0 +1,21 @@
+#include "protein_geometry.h"
+#include "../view/exp004state0.h"
+#include <GL/glut.h>
+
+#define S exp004state0
+
+void
+protein_geometry (void)
+{
+  /*
+   * Create a sphere and put it in a display list.
+   */
+  GLUquadricObj *obj = gluNewQuadric ();
+  gluQuadricDrawStyle (obj, GLU_FILL);
+  glNewList (S.list_offset + PROTEIN_GEOMETRY, GL_COMPILE);
+  gluSphere (obj, 0.05, 20, 20);
+  glEndList ();
+  gluDeleteQuadric (obj);
+
+  return;
+}
diff --git a/src/model/protein_geometry.h b/src/model/protein_geometry.h
new file mode 100644
index 0000000..e9ac0db
--- a/dev/null
+++ b/src/model/protein_geometry.h
@@ -0,0 +1,9 @@
+#ifndef PROTEIN_GEOMETRY_H
+#define PROTEIN_GEOMETRY_H
+
+/*
+ * Define the geometry to render for a protein.
+ */
+void protein_geometry (void);
+
+#endif // PROTEIN_GEOMETRY_H
diff --git a/src/view/exp004geometry.c b/src/view/exp004geometry.c
index b34d7f3..e7193fd 100644
--- a/src/view/exp004geometry.c
+++ b/src/view/exp004geometry.c
@@ -6,6 +6,8 @@
 #include "exp004state0.h"
 #include <GL/glut.h>
 
+#define S exp004state0
+
 void
 exp004geometry (GLenum mode)
 {
@@ -15,17 +17,16 @@ exp004geometry (GLenum mode)
   glPointSize (0.1);
   glColor3f (0.2, 0.2, 0.2);
 
-  if (mode == GL_SELECT)
-    {
-      for (int i = 0; i < ROWS; i++)
-	{
-	  glLoadName (i);
-	  glDrawArrays (GL_POINTS, i, 1);
-	}
-    }
-  else
+  for (int i = 0; i < ROWS; i++)
     {
-      glDrawArrays (GL_POINTS, 0, ROWS);
+      glLoadName (i);
+      glPushMatrix ();
+      glTranslatef (S.base_vertices_data[i][0], 
+		    S.base_vertices_data[i][1],
+		    0.0);
+      glColor4fv (S.base_colors_data[i]);
+      glCallList (S.list_offset + PROTEIN_GEOMETRY);
+      glPopMatrix ();
     }
 
   return;
diff --git a/src/view/exp004init.c b/src/view/exp004init.c
index 97bd779..e7da51d 100644
--- a/src/view/exp004init.c
+++ b/src/view/exp004init.c
@@ -2,6 +2,7 @@
 #include "exp004state0.h"
 #include "../model/selection_info_init.h"
 #include "../model/zoom_info_init.h"
+#include <GL/glut.h>
 
 #define S exp004state0
 
@@ -11,5 +12,7 @@ exp004init (void)
   selection_info_init (&S.selection);
   zoom_info_init (&S.zoom);
 
+  S.list_offset = glGenLists (1);
+  
   return;
 }
diff --git a/src/view/exp004view.c b/src/view/exp004view.c
index b7e4367..68a4e79 100644
--- a/src/view/exp004view.c
+++ b/src/view/exp004view.c
@@ -4,6 +4,7 @@
 #include "../controller/keyboard.h"
 #include "../db/dbconnect.h"
 #include "../model/exp004base.h"
+#include "../model/protein_geometry.h"
 #include "exp004init.h"
 #include "exp004state0.h"
 #include "exp004view.h"
@@ -42,6 +43,7 @@ exp004view (void)
   // Initialize the model.
   exp004base ();
   exp004init ();
+  protein_geometry ();
 
   // Callbacks (Controllers)
   glutDisplayFunc (exp004display);
--
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