imported LogoBox

LogoBox.cc

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+
+/* Author: Josh Holtrop
+ * DornerWorks screensaver
+ * This module can be used to create "LogoBox" objects
+ * which consist of a 3D DW logo and possibly have a
+ * mass and boundary associated with them if physics
+ * is being used
+ */
+
+#include <GL/gl.h>
+#include "WFObj.h"
+#include "LogoBox.h"
+#include "LoadFile.h"
+#include <string.h>                 /* memcpy() */
+
+#include <iostream>
+using namespace std;
+
+static GLuint _logoList = 0;
+static float _logoAABB[6];
+static GLuint _drawList;
+static LoadFile loadFile;
+
+/* construct a LogoBox object
+ * The first time the constructor is called it loads the
+ * Alias Wavefront object model. Subsequent calls will
+ * reuse the same module.
+ */
+LogoBox::LogoBox()
+{
+    if (_logoList == 0)
+    {
+        WFObj obj(loadFile);
+        if (obj.load(FileLoader::Path("", "dwlogo.obj")))
+        {
+            _logoList = obj.render(false);
+            const float * aabb = obj.getAABB();
+            memcpy(_logoAABB, aabb, sizeof(_logoAABB));
+
+            float c_x = (_logoAABB[0] + _logoAABB[3]) / 2.0f;
+            float c_y = (_logoAABB[1] + _logoAABB[4]) / 2.0f;
+            float c_z = (_logoAABB[2] + _logoAABB[5]) / 2.0f;
+            _drawList = glGenLists(1);
+            glNewList(_drawList, GL_COMPILE);
+                glPushMatrix();
+                    glTranslatef(-c_x, -c_y, -c_z);
+                    glCallList(_logoList);
+                glPopMatrix();
+            glEndList();
+        }
+    }
+
+}
+
+LogoBox::~LogoBox()
+{
+}
+
+void LogoBox::draw()
+{
+    glCallList(_drawList);
+}
+
+/* return a pointer to the axis-aligned bounding box for a DW logo */
+const float * const LogoBox::getAABB() const
+{
+    return _logoAABB;
+}
+
+float LogoBox::getWidth() const
+{
+    return _logoAABB[3] - _logoAABB[0];
+}
+
+float LogoBox::getHeight() const
+{
+    return _logoAABB[5] - _logoAABB[2];
+}
+
+float LogoBox::getDepth() const
+{
+    return _logoAABB[4] - _logoAABB[1];
+}
+

LogoBox.h

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+
+/*
+ * Author: Josh Holtrop
+ * DornerWorks screensaver
+ * The LogoBox class
+ */
+
+#ifndef LOGOBOX_H
+#define LOGOBOX_H
+
+#include <GL/gl.h>
+
+class LogoBox
+{
+public:
+    LogoBox();
+    ~LogoBox();
+    void draw();
+    const float * const getAABB() const;
+    float getWidth() const;
+    float getHeight() const;
+    float getDepth() const;
+};
+
+#endif