Initial revision
diff --git a/progs/beos/demo.cpp b/progs/beos/demo.cpp
new file mode 100644
index 0000000..c25eb93
--- /dev/null
+++ b/progs/beos/demo.cpp
@@ -0,0 +1,153 @@
+// $Id: demo.cpp,v 1.1 1999/08/19 00:55:40 jtg Exp $
+
+// Simple BeOS GLView demo
+// Written by Brian Paul
+// This file is in the public domain.
+
+
+
+#include <stdio.h>
+#include <Application.h>
+#include <Window.h>
+#include <GLView.h>
+
+
+class MyWindow : public BWindow
+{
+public:
+ MyWindow(BRect frame);
+ virtual bool QuitRequested();
+};
+
+
+MyWindow::MyWindow(BRect frame)
+ : BWindow(frame, "demo", B_TITLED_WINDOW, B_NOT_ZOOMABLE)
+{
+ // no-op
+}
+
+bool MyWindow::QuitRequested()
+{
+ be_app->PostMessage(B_QUIT_REQUESTED);
+ return true;
+}
+
+
+class MyGL : public BGLView
+{
+public:
+ MyGL(BRect rect, char *name, ulong options);
+
+// virtual void AttachedToWindow();
+ virtual void Draw(BRect updateRect);
+ virtual void Pulse();
+ virtual void FrameResized(float w, float h);
+private:
+ float mAngle;
+};
+
+
+MyGL::MyGL(BRect rect, char *name, ulong options)
+ : BGLView(rect, name, B_FOLLOW_LEFT_RIGHT | B_FOLLOW_TOP_BOTTOM, 0, options)
+{
+ mAngle = 0.0;
+}
+
+
+#if 0
+void MyGL::AttachedToWindow()
+{
+ BGLView::AttachedToWindow();
+ LockGL();
+ glClearColor(.7, .7, 0, 0);
+ UnlockGL();
+}
+#endif
+
+
+void MyGL::FrameResized(float w, float h)
+{
+ BGLView::FrameResized(w, h);
+
+ printf("FrameResized\n");
+ LockGL();
+ BGLView::FrameResized(w,h);
+ glViewport(0, 0, (int) (w + 1), (int) (h + 1));
+ glMatrixMode(GL_PROJECTION);
+ glLoadIdentity();
+ glFrustum(-1, 1, -1, 1, 10, 30);
+ glMatrixMode(GL_MODELVIEW);
+ glLoadIdentity();
+ glTranslatef(0, 0, -18);
+ UnlockGL();
+}
+
+
+
+void MyGL::Draw(BRect r)
+{
+ printf("MyGL::Draw\n");
+ BGLView::Draw(r);
+ LockGL();
+ glClear(GL_COLOR_BUFFER_BIT);
+ glPushMatrix();
+ glRotatef(mAngle, 0, 0, 1);
+ glColor3f(0, 0, 1);
+ glBegin(GL_POLYGON);
+ glVertex2f(-1, -1);
+ glVertex2f( 1, -1);
+ glVertex2f( 1, 1);
+ glVertex2f(-1, 1);
+ glEnd();
+ SwapBuffers();
+ UnlockGL();
+}
+
+
+void MyGL::Pulse()
+{
+ printf("pulse\n");
+ BGLView::Pulse();
+ mAngle += 1.0;
+
+ LockGL();
+ glClear(GL_COLOR_BUFFER_BIT);
+ glPushMatrix();
+ glRotatef(mAngle, 0, 0, 1);
+ glColor3f(0, 0, 1);
+ glBegin(GL_POLYGON);
+ glVertex2f(-1, -1);
+ glVertex2f( 1, -1);
+ glVertex2f( 1, 1);
+ glVertex2f(-1, 1);
+ glEnd();
+ SwapBuffers();
+ UnlockGL();
+}
+
+
+
+int main(int argc, char *argv[])
+{
+ BApplication *app = new BApplication("application/demo");
+
+ // make top-level window
+ int x = 500, y = 500;
+ int w = 400, h = 400;
+ MyWindow *win = new MyWindow(BRect(x, y, x + w, y + h));
+ // win->Lock();
+ // win->Unlock();
+ win->Show();
+
+ // Make OpenGL view and put it in the window
+ MyGL *gl = new MyGL(BRect(5, 5, w-10, h-10), "GL", BGL_RGB | BGL_DOUBLE);
+ // MyGL *gl = new MyGL(BRect(5, 5, w-10, h-10), "GL", BGL_RGB );
+ win->AddChild(gl);
+
+ printf("calling app->Run\n");
+ app->Run();
+
+ delete app;
+
+ return 0;
+}