#include <stdio.h>
#include <stdlib.h>

#include <Application.h>
#include <View.h>
#include <Window.h>


class PulsedView : public BView {
public:
        PulsedView(BRect frame)
                :
                BView(frame, "pulsed view", B_FOLLOW_ALL, B_WILL_DRAW)
        {
        }

        virtual void Draw(BRect updateRect)
        {
                SetHighColor(rand() % 255, rand() % 255, rand() % 255, 255);
                FillRect(updateRect);
        }
};


class PulsedApplication : public BApplication {
public:
        PulsedApplication()
                :
                BApplication("application/x-vnd.haiku.pulsed_drawing")
        {
                BRect frame(100, 100, 400, 300);
                BWindow* window = new BWindow(frame, "Pulsed Drawing",
                        B_TITLED_WINDOW_LOOK, B_NORMAL_WINDOW_FEEL, B_QUIT_ON_WINDOW_CLOSE);

                fView = new PulsedView(frame.OffsetToCopy(0, 0));
                window->AddChild(fView);
                window->Show();

                SetPulseRate(1 * 1000 * 1000);
        }

        virtual void Pulse()
        {
                if (!fView->LockLooper())
                        return;

                fView->Invalidate();
                fView->UnlockLooper();
        }

private:
        PulsedView* fView;
};


int
main(int argc, char* argv[])
{
        PulsedApplication app;
        app.Run();
        return 0;
}