/*
 * Copyright 2008, Stephan Aßmus <superstippi@gmx.de>
 * Distributed under the terms of the MIT License.
 */


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

#include <stdio.h>


class View : public BView {
public:
                                                View(BRect rect, const char* name, uint32 followMode,
                                                        uint8 red, uint8 green, uint8 blue);
                virtual                 ~View();

                virtual void    Draw(BRect updateRect);

                virtual void    MouseDown(BPoint where);
                virtual void    MouseMoved(BPoint where, uint32 transit,
                                                        const BMessage* dragMessage);

private:
                                void    _SetTransit(uint32 transit);

                                uint32  fLastTransit;
};


View::View(BRect rect, const char* name, uint32 followMode,
                uint8 red, uint8 green, uint8 blue)
        : BView(rect, name, followMode, B_WILL_DRAW),
          fLastTransit(B_OUTSIDE_VIEW)
{
        SetViewUIColor(B_PANEL_BACKGROUND_COLOR);
        SetHighColor(red, green, blue);
}


View::~View()
{
}


void
View::Draw(BRect updateRect)
{
        if (fLastTransit == B_INSIDE_VIEW || fLastTransit == B_ENTERED_VIEW)
                FillRect(updateRect);
}


void
View::MouseDown(BPoint where)
{
        uint32 buttons;
        do {
                GetMouse(&where, &buttons);
        } while (buttons != 0);
}


void
View::MouseMoved(BPoint where, uint32 transit, const BMessage* dragMessage)
{
        _SetTransit(transit);
}


void
View::_SetTransit(uint32 transit)
{
        if (transit == fLastTransit)
                return;

        switch (transit) {
                case B_ENTERED_VIEW:
                        if (fLastTransit == B_INSIDE_VIEW)
                                printf("%s, B_ENTERED_VIEW, but already inside!\n", Name());
                        break;

                case B_EXITED_VIEW:
                        if (fLastTransit == B_OUTSIDE_VIEW)
                                printf("%s, B_EXITED_VIEW, but already outside!\n", Name());
                        break;

                case B_INSIDE_VIEW:
                        if (fLastTransit == B_OUTSIDE_VIEW)
                                printf("%s, B_INSIDE_VIEW, but never entered!\n", Name());
                        if (fLastTransit == B_EXITED_VIEW)
                                printf("%s, B_INSIDE_VIEW, but just exited!\n", Name());
                        break;

                case B_OUTSIDE_VIEW:
                        if (fLastTransit == B_INSIDE_VIEW)
                                printf("%s, B_OUTSIDE_VIEW, but never exited!\n", Name());
                        if (fLastTransit == B_ENTERED_VIEW)
                                printf("%s, B_OUTSIDE_VIEW, but just entered!\n", Name());
                        break;
        }

        fLastTransit = transit;
        Invalidate();
}


//      #pragma mark -


int 
main(int argc, char **argv)
{
        BApplication app("application/x-vnd.haiku-view_transit");

        BWindow* window = new BWindow(BRect(100, 100, 400, 400),
                "ViewTransit-Test", B_TITLED_WINDOW,
                B_ASYNCHRONOUS_CONTROLS | B_QUIT_ON_WINDOW_CLOSE);

        BRect frame = window->Bounds();
        frame.right /= 2;
        window->AddChild(new View(frame, "L ", B_FOLLOW_ALL, 255, 0, 0));
        frame.left = frame.right + 1;
        frame.right = window->Bounds().right;
        View* view = new View(frame, "R", B_FOLLOW_TOP_BOTTOM | B_FOLLOW_RIGHT,
                0, 255, 0);
        window->AddChild(view);
        view->SetEventMask(B_POINTER_EVENTS, B_NO_POINTER_HISTORY);

        window->Show();

        app.Run();
        return 0;
}