diff options
author | jtg <jtg> | 1999-08-19 00:55:39 +0000 |
---|---|---|
committer | jtg <jtg> | 1999-08-19 00:55:39 +0000 |
commit | afb833d4e89c312460a4ab9ed6a7a8ca4ebbfe1c (patch) | |
tree | 59d65b4da12fb5379224cf5f6b808fde91523c7f /progs/beos/demo.cpp | |
parent | f2544d4920ce168bec9cd94d774b7ea5103a3d74 (diff) |
Initial revision
Diffstat (limited to 'progs/beos/demo.cpp')
-rw-r--r-- | progs/beos/demo.cpp | 153 |
1 files changed, 153 insertions, 0 deletions
diff --git a/progs/beos/demo.cpp b/progs/beos/demo.cpp new file mode 100644 index 00000000000..c25eb93075c --- /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; +} |