no. 26 - Input box

/*
-----------------------------------------
* Game hacking QTS ( Quickie Tip Series )
* no. 26 - Input box
-----------------------------------------
* Author: SEGnosis  - GHAnon.net
* Thanks to:
* bitterbanana      - No known site
* Drunken Cheetah   - No known site
* fatboy88      - No known site
* Geek4Ever         - No known site
* learn_more        - www.uc-forum.com
* Novocaine         - http://ilsken.net/blog/?page_id=64
* Philly0494        - No known site
* Roverturbo        - www.uc-forum.com
* SilentKarma       - www.halocoders.com - offline
* Strife        - www.uc-forum.com
* Wieter20      - No known site
*/






class C_InputBox
{
    public:
        void Load()
        {
            m_szInputQueue[ 0 ] = 0;

            SetRect( &m_rtClient, 0, 0, 300, 200 );
            SetRect( &m_rtInput, 0, 0, 150, CDraw.m_iListBoxFontHeight + 2 );
            SetRect( &m_rtButton, 0, 0, CDraw.m_iListBoxFontWidth * 4, CDraw.m_iListBoxFontHeight + 2 );
        }

        void Input( UINT uiMessage, WPARAM wParam, LPARAM lParam );

        void DrawDialog();
        void Move();

        bool GetCurrentInput( char* szpQueue )
        {
            if( m_bActive)
                strcpy( szpQueue, m_szInputQueue );
            return false;
        }

    private:
        char m_szInputQueue[ 24 ];

        bool m_bActive;

        RECT    m_rtClient,
                m_rtInput,
                m_rtButton;
}CInputBox;

void C_InputBox::Input( UINT uiMessage, WPARAM wParam, LPARAM lParam )
{
    switch( uiMessage )
    {
    case WM_LBUTTONDOWN:
        {
            POINT ptCursor;
            GetCursorPos( &ptCursor );
            ScreenToClient( g_hWnd, &ptCursor );

            if( CDraw.IsPointInRect( ptCursor, m_rtButton, true ) )
                m_bActive = false;
        }
        break;

    case WM_CHAR:
        switch( wParam )
        {
        case VK_BACK:
                m_szInputQueue[ max( strlen( m_szInputQueue ) - 1, 0 ) ] = 0;
            break;

        case VK_RETURN:
                m_bActive = false;
            break;

        case VK_TAB:
            if( !m_bActive )
            {
                m_bActive = true;
                m_szInputQueue[ 0 ] = 0;
            }
            break;

        default:
            {
                static char szInput[ 2 ] = { 0 };

                szInput[ 0 ] = ( char )wParam;

                if( strlen( m_szInputQueue ) < 23 && ( isalnum( szInput[ 0 ] ) || szInput[ 0 ] == VK_SPACE ) )
                    strcat( m_szInputQueue, szInput );
            }
            break;
        }
        break;
    }
}

void C_InputBox::Move()
{
    SetRect( &m_rtClient, g_rtClient.right/2 - m_rtClient.right/2, g_rtClient.bottom/2 - m_rtClient.bottom/2, m_rtClient.right, m_rtClient.bottom );
    SetRect( &m_rtInput, m_rtClient.left + 75, m_rtClient.top + 50, m_rtInput.right, m_rtInput.bottom );
    SetRect( &m_rtButton, m_rtClient.left + m_rtClient.right/2 - m_rtButton.right/2, m_rtClient.top + m_rtClient.bottom - m_rtButton.bottom - 10, m_rtButton.right, m_rtButton.bottom );
}

void C_InputBox::DrawDialog()
{
    if( !m_bActive )
        return;

    Move();

    const D3DCOLOR coLightGray  = D3DCOLOR_XRGB( 150, 150, 150 );
    const D3DCOLOR coMocha      = D3DCOLOR_XRGB( 63, 41, 4 );
    const D3DCOLOR coMochaBorder= D3DCOLOR_XRGB( 27, 27, 27 );

    CDraw.GradientRect( D3DXVECTOR2( m_rtClient.left, m_rtClient.top ), m_rtClient.right, m_rtClient.bottom, CDraw.m_coWhite, coLightGray );
    CDraw.Rect( m_rtInput.left, m_rtInput.top, m_rtInput.right, m_rtInput.bottom, coMocha );
    CDraw.LineRect( m_rtInput.left, m_rtInput.top, m_rtInput.right, m_rtInput.bottom, coMochaBorder );

    CDraw.Rect( m_rtButton.left, m_rtButton.top, m_rtButton.right, m_rtButton.bottom, coMocha );
    CDraw.LineRect( m_rtButton.left, m_rtButton.top, m_rtButton.right, m_rtButton.bottom, coMochaBorder );

    CDraw.String( m_rtButton.left + CDraw.m_iListBoxFontWidth, m_rtButton.top + 1, CDraw.m_coWhite, FF_DEFAULT, "Ok" );

    CDraw.String( m_rtInput.left + 5, m_rtInput.top + 1, CDraw.m_coWhite, FF_DEFAULT, m_szInputQueue );
}

CInputBox.Load(); // once
CInputBox.DrawDialog(); // in endscene