/*
 * Copyright 2019, Adrien Destugues <pulkomandy@pulkomandy.tk>
 * Distributed under terms of the MIT license.
 */


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

#include <assert.h>


class BitmapView: public BView
{
        public:
                BitmapView(BBitmap* bitmap)
                        : BView(bitmap->Bounds(), "test view", B_FOLLOW_LEFT_TOP, B_WILL_DRAW)
                        , fBitmap(bitmap)
                {
                }

                ~BitmapView()
                {
                        delete fBitmap;
                }

                void Draw(BRect updateRect)
                {
                        DrawBitmap(fBitmap);
                }

        private:
                BBitmap* fBitmap;
};


int
main(void)
{
        BApplication app("application/Haiku-BitmapTest");

        BWindow* window = new BWindow(BRect(10, 10, 100, 100),
                "Bitmap drawing test", B_DOCUMENT_WINDOW, B_QUIT_ON_WINDOW_CLOSE);
        window->Show();

        BBitmap* bitmap = new BBitmap(BRect(0, 0, 24, 24), B_GRAY1);

        // Bitmap is 25 pixels wide, which rounds up to 4 pixels
        // The last byte only has one bit used, and 7 bits of padding
        assert(bitmap->BytesPerRow() == 4);

        // This was extracted from letter_a.pbm and should look mostly like a
        // black "A" letter on a white background (confirmed BeOS behavior)
        const unsigned char data[] = {
                0, 0, 0, 0,
                0, 8, 0, 0,
                0, 0x1c, 0, 0,
                0, 0x3e, 0, 0,
                0, 0x7e, 0, 0,
                0, 0xFF, 0, 0,
                0, 0xE7, 0, 0,
                0, 0xC3, 0, 0,
                1, 0xC3, 0x80, 0,
                1, 0x81, 0x80, 0,
                3, 0x81, 0xC0, 0,
                3, 0xFF, 0xC0, 0,
                7, 0xFF, 0xE0, 0,
                7, 0xFF, 0xE0, 0,
                7, 0x81, 0xE0, 0,
                0x0F, 0, 0x0F, 0,
                0x0F, 0, 0x0F, 0,
                0x1F, 0, 0xF8, 0,
                0x1E, 0, 0x78, 0,
                0x1C, 0, 0x38, 0,
                0x3C, 0, 0x3C, 0,
                0x3C, 0, 0x3C, 0,
                0x38, 0, 0x0E, 0,
                0x78, 0, 0x0F, 0,
                0, 0, 0, 0
        };
        bitmap->SetBits(data, sizeof(data), 0, B_GRAY1);

        BView* view = new BitmapView(bitmap);
        window->AddChild(view);

        app.Run();
        return 0;
}