1 files changed, 147 insertions, 0 deletions
diff --git a/progs/beos/demo.cpp b/progs/beos/demo.cpp
new file mode 100644
index 00000000000..6b0b9576d66
--- /dev/null
+++ b/progs/beos/demo.cpp
@@ -0,0 +1,147 @@
+// $Id: demo.cpp,v 1.2 2004/08/14 09:59:16 phoudoin Exp $
+
+// Simple BeOS GLView demo
+// Written by Brian Paul
+// Changes by Philippe Houdoin
+// This file is in the public domain.
+
+
+
+#include <stdio.h>
+#include <Application.h>
+#include <Window.h>
+#include <GLView.h>
+
+class MyGL : public BGLView
+{
+public:
+	MyGL(BRect rect, char *name, ulong options);
+
+	virtual void AttachedToWindow();
+	virtual void Pulse();
+	virtual void FrameResized(float w, float h);
+
+private:
+	void Render();
+	void Reshape(float w, float h);
+	float mAngle;
+};
+
+
+class MyWindow : public BWindow
+{
+public:
+	MyWindow(BRect frame);
+	virtual bool QuitRequested();
+};
+
+
+MyWindow::MyWindow(BRect frame)
+   : BWindow(frame, "demo", B_TITLED_WINDOW, B_NOT_ZOOMABLE)
+{
+   // Make OpenGL view and put it in the window
+   BRect r = Bounds();
+   r.InsetBy(5, 5);
+   
+   MyGL *gl = new MyGL(r, "GL", BGL_RGB | BGL_DOUBLE);
+   AddChild(gl);
+   SetPulseRate(1000000 / 30);
+}
+
+bool MyWindow::QuitRequested()
+{
+   be_app->PostMessage(B_QUIT_REQUESTED);
+   return true;
+}
+
+
+
+MyGL::MyGL(BRect rect, char *name, ulong options)
+   : BGLView(rect, name, B_FOLLOW_ALL_SIDES, B_PULSE_NEEDED, options)
+{
+	mAngle = 0.0;
+}
+
+
+void MyGL::AttachedToWindow()
+{
+	BGLView::AttachedToWindow();
+
+	LockGL();
+	glClearColor(0.7, 0.7, 0, 0);
+	Reshape(Bounds().Width(), Bounds().Height());
+	UnlockGL();
+}
+
+
+void MyGL::FrameResized(float w, float h)
+{
+	BGLView::FrameResized(w, h);
+
+	LockGL();
+	Reshape(w, h);
+	UnlockGL();
+
+	Render();
+}
+
+
+void MyGL::Pulse()
+{
+	mAngle += 1.0;
+	Render();
+}
+
+
+void MyGL::Render()
+{
+    LockGL();
+
+    glClear(GL_COLOR_BUFFER_BIT);
+    
+    glPushMatrix();
+
+    glRotated(mAngle, 0, 0, 1);
+    glColor3f(0, 0, 1);
+
+    glBegin(GL_POLYGON);
+    glVertex2f(-1, -1);
+    glVertex2f( 1, -1);
+    glVertex2f( 1,  1);
+    glVertex2f(-1,  1);
+    glEnd();
+
+	glPopMatrix();
+
+    SwapBuffers();
+
+    UnlockGL();
+}
+
+
+void MyGL::Reshape(float w, float 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);
+}
+
+
+int main(int argc, char *argv[])
+{
+   BApplication *app = new BApplication("application/demo");
+
+   // make top-level window
+   MyWindow *win = new MyWindow(BRect(100, 100, 500, 500));
+   win->Show();
+
+    app->Run();
+
+   delete app;
+
+   return 0;
+}