Ticket #12937: gradienttest.cpp

#include <Application.h>
#include <InterfaceKit.h>
#include <SupportKit.h>
#include <GroupLayout.h>
#include <GradientRadial.h>

class View : public BView {
public:
    View() : BView("gradients", B_WILL_DRAW) {
    }

    void Draw(BRect) {
        BGradientRadial g(BPoint(50, 50), 50.0);
        g.AddColor((rgb_color) { 0, 0, 0, 255 }, 255.0);
        g.AddColor((rgb_color) { 255, 255, 255, 0 }, 0.0);
        SetHighColor(0, 0, 0);
        BeginLayer(255);
        // 1, 1
        FillRect(BRect(10, 10, 90, 90));
        // 2, 1
        FillRect(BRect(100, 10, 190, 90), g);
        EndLayer();
        BeginLayer(100);
        // 1, 2
        FillRect(BRect(10, 100, 90, 190));
        // 2, 2
        FillRect(BRect(100, 100, 190, 190), g);
        EndLayer();
    }
};

class App : public BApplication {
public:
    App() : BApplication("application/gradtest") {
        BRect frame(100, 100, 300, 300);

        BWindow* wnd = new BWindow(frame, "gradients", B_TITLED_WINDOW, B_QUIT_ON_WINDOW_CLOSE);
        View* view = new View();
        
        BGroupLayout* layout = new BGroupLayout(B_VERTICAL, 0);
        wnd->SetLayout(layout);
        layout->AddView(view);
        wnd->Show();
    }
};

int main() {
    App* app = new App();
    app->Run();
    delete app;
    return 0;
}