statusbarmsgwnd.cpp

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/*******************************************************************************
File:        StatusBarMsgWnd.cpp
********************************************************************************/

#include "stdafx.h"

#include "StatusBarMsgWnd.h"
#include <mmsystem.h>

#ifdef _DEBUG
#define new DEBUG_NEW
#undef THIS_FILE
static char THIS_FILE[] = __FILE__;
#endif

/*----------------------------------------------------------------------------
 Message map
----------------------------------------------------------------------------*/

BEGIN_MESSAGE_MAP(CStatusBarMsgWnd, CFrameWnd)
    ON_WM_SIZE()
    ON_WM_CREATE()
    ON_WM_MOUSEMOVE()
    ON_WM_TIMER()
    ON_WM_SETCURSOR()
    ON_WM_DESTROY()
    ON_WM_PAINT()
    ON_WM_LBUTTONDOWN()
    ON_MESSAGE(WM_MOUSELEAVE, OnMouseLeave)
    ON_MESSAGE(WM_MOUSEHOVER, OnMouseHover)
END_MESSAGE_MAP()



/*-----------------------------------------------------------------------------
 Function : CStatusBarMsgWnd::CStatusBarMsgWnd()

 Parameters : 
    1. strMsg     -> Message to be shown in the window
    2. nWndWidth  -> Width of the message window
    3. nWndHeight -> Height if the message window
    4. nMsgTimeOut -> Seconds the window remains stationary
    5. nMsgWndCreationDelay -> Seconds in which the window gets shown
    4. pParent    -> Pointer to the parent window
    5  rectMsgRect -> Rectangle in the window where the message will be

 Return Value : none

 Exceptions : none

 Revisions : none
----------------------------------------------------------------------------*/

CStatusBarMsgWnd::CStatusBarMsgWnd(
                      CString strMsg, 
                      unsigned int nWndWidth,
                      unsigned int nWndHeight,
                      unsigned int nMsgTimeOut,         
                      unsigned int nMsgWndCreationDelay, 
                      CRect rectMsgRect,
                      CWnd* pWndParent) : m_strMsg(strMsg), m_rectMsgRect(rectMsgRect)
{
    m_nWndWidth  = nWndWidth;
    m_nWndHeight = nWndHeight;

    m_pWndParent = pWndParent;

    m_nMsgTimeOut          = nMsgTimeOut;
    m_nMsgWndCreationDelay = nMsgWndCreationDelay;

    m_bMouseOverWnd = FALSE;

    m_hCursor = NULL;
}

CStatusBarMsgWnd::~CStatusBarMsgWnd()
{
}

void CStatusBarMsgWnd::PopWndForLeftStatusBar()
{
    CRect t_rect(0, 0, 0, 0);
    Create(NULL, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, t_rect, m_pWndParent);
    
    CRect rectDesktopWithoutTaskbar;   // The desktop area 

    // Get the desktop area
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    
    // Calculate the actual width of the Window and its position
    m_nWndLeft   = rectDesktopWithoutTaskbar.left;
    m_nWndTop    = rectDesktopWithoutTaskbar.bottom - m_nWndHeight;
    m_nWndRight  = m_nWndLeft + m_nWndWidth;
    m_nWndBottom = m_nWndTop + m_nWndHeight;
    
    m_nWndSize = 0; // The height of window is zero before showing

    SetTimer(IDT_POP_WINDOW_TIMER, m_nMsgWndCreationDelay, NULL);

}


void CStatusBarMsgWnd::PopWndForRightStatusBar()
{
    PopWndForBottomStatusBar();
}

void CStatusBarMsgWnd::PopWndForTopStatusBar()
{
    CRect t_rect(0, 0, 0, 0);
    Create(NULL, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, t_rect, m_pWndParent);
    
    CRect rectDesktopWithoutTaskbar;   // The desktop area 

    // Get the desktop area
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    
    // Calculate the actual width of the Window and its position in screen co-ordinates
    m_nWndLeft   = rectDesktopWithoutTaskbar.right - m_nWndWidth;
    m_nWndTop    = rectDesktopWithoutTaskbar.top;
    m_nWndRight  = m_nWndLeft + m_nWndWidth;
    m_nWndBottom = m_nWndTop + m_nWndHeight;

    m_nWndSize = 0; // The height of window is zero before showing

    SetTimer(IDT_POP_WINDOW_TIMER, m_nMsgWndCreationDelay, NULL);
}

void CStatusBarMsgWnd::PopWndForBottomStatusBar()
{
    CRect t_rect(0, 0, 0, 0);
    
    Create(NULL, NULL, WS_VISIBLE | WS_OVERLAPPEDWINDOW, t_rect, m_pWndParent); 
    
    CRect rectDesktopWithoutTaskbar;   // The desktop area 

    // Get the desktop area
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    
    // Calculate the actual width of the Window and its position in screen co-ordinates
    m_nWndLeft   = rectDesktopWithoutTaskbar.right - m_nWndWidth;
    m_nWndTop    = rectDesktopWithoutTaskbar.bottom - m_nWndHeight;
    m_nWndRight  = m_nWndLeft + m_nWndWidth;
    m_nWndBottom = m_nWndTop + m_nWndHeight;
    
    m_nWndSize = 0; // The height of window is zero before showing

    SetTimer(IDT_POP_WINDOW_TIMER, m_nMsgWndCreationDelay, NULL);
}


void CStatusBarMsgWnd::PopMsg()
{
	PlaySound("alarm.wav",NULL,SND_FILENAME);
    if (CheckIfStatusBarBottom())  // Most frequent case is status bar at bottom
    {
        PopWndForBottomStatusBar();
    }
    else
    {
        if (CheckIfStatusBarTop())
        {
            PopWndForTopStatusBar();
        }
        else
        {
            if (CheckIfStatusBarLeft())
            {
                PopWndForLeftStatusBar();
            }
            else
            {
                m_nStatusBarPos = STP_RIGHT; // Force it, as no need for calling "CheckIfStatusBarRight()
                PopWndForRightStatusBar();
            }
        }
    }
}


BOOL CStatusBarMsgWnd::CheckIfStatusBarLeft()
{
    unsigned int nAvailableScreenTop;
    unsigned int nAvailableScreenLeft;
    
    CRect rectDesktopWithoutTaskbar;   // The desktop area without status bar
    
    // Get the desktop area minus the status
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    nAvailableScreenLeft  = rectDesktopWithoutTaskbar.left;
    nAvailableScreenTop = rectDesktopWithoutTaskbar.top;

    if ((nAvailableScreenLeft > 0) && (nAvailableScreenTop == 0))
    {
        m_nStatusBarPos = STP_LEFT;
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}


BOOL CStatusBarMsgWnd::CheckIfStatusBarRight()
{
    unsigned int nAvailableScreenWidth;
    unsigned int nAvailableScreenHeight;
    unsigned int nActualScreenWidth;
    unsigned int nActualScreenHeight;

    // Calculate the actual screen height and width
    nActualScreenWidth  = ::GetSystemMetrics(SM_CXFULLSCREEN);
    nActualScreenHeight = ::GetSystemMetrics(SM_CYFULLSCREEN);

  
    CRect rectDesktopWithoutTaskbar;   // The desktop area without status bar
    
    // Get the desktop area minus the status
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    nAvailableScreenWidth  = rectDesktopWithoutTaskbar.Width();
    nAvailableScreenHeight = rectDesktopWithoutTaskbar.Height();

    if ((nAvailableScreenWidth != nActualScreenWidth) &&
        (nAvailableScreenHeight == nActualScreenHeight))
    {
        m_nStatusBarPos = STP_RIGHT;
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}

BOOL CStatusBarMsgWnd::CheckIfStatusBarTop()
{
    unsigned int nAvailableScreenTop;
    unsigned int nAvailableScreenLeft;
    
    CRect rectDesktopWithoutTaskbar;   // The desktop area without status bar
    
    // Get the desktop area minus the status
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    nAvailableScreenLeft  = rectDesktopWithoutTaskbar.left;
    nAvailableScreenTop = rectDesktopWithoutTaskbar.top;

    if ((nAvailableScreenLeft == 0) && (nAvailableScreenTop > 0))
    {
        m_nStatusBarPos = STP_TOP;
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}
BOOL CStatusBarMsgWnd::CheckIfStatusBarBottom()
{
    unsigned int nAvailableScreenWidth;
    unsigned int nAvailableScreenBottom;
    unsigned int nActualScreenWidth;
    unsigned int nActualScreenBottom;

    // Calculate the actual screen height and width
    nActualScreenWidth  = ::GetSystemMetrics(SM_CXSCREEN);
    nActualScreenBottom = ::GetSystemMetrics(SM_CYSCREEN);

  
    CRect rectDesktopWithoutTaskbar;   // The desktop area without status bar
    
    // Get the desktop area minus the status
    ::SystemParametersInfo(SPI_GETWORKAREA, 0, &rectDesktopWithoutTaskbar, 0);
    nAvailableScreenWidth  = rectDesktopWithoutTaskbar.Width();
    nAvailableScreenBottom = rectDesktopWithoutTaskbar.bottom;

    if ((nAvailableScreenWidth == nActualScreenWidth) &&
        (nAvailableScreenBottom < nActualScreenBottom))
    {
        m_nStatusBarPos = STP_BOTTOM;
        return TRUE;
    }
    else
    {
        return FALSE;
    }
}


void CStatusBarMsgWnd::OnSize(unsigned int nType, int cx, int cy)
{
    CFrameWnd::OnSize(nType, cx, cy);

    //SendMessage(WM_MOUSEMOVE, 0);
    CFont* pFont = NULL;
    CClientDC dc(this);

    if (m_bMouseOverWnd)
    {
        pFont = dc.SelectObject(&m_fontMessageUnderline);
    }
    else
    {
        pFont = dc.SelectObject(&m_fontMessageNoUnderline);
    }

    // Show with the message with the new font
    dc.DrawText(m_strMsg, &m_rectMsgRect, DT_WORDBREAK | DT_CENTER);
    dc.SelectObject(pFont);

    //dc.DrawText(m_strMsg, &m_rectMsgRect, DT_WORDBREAK | DT_CENTER);
}


int CStatusBarMsgWnd::OnCreate( LPCREATESTRUCT lpCreateStruct )
{
    if (CFrameWnd::OnCreate(lpCreateStruct) == -1)
		return -1;

	ModifyStyle(WS_CAPTION, 0, SWP_FRAMECHANGED); // removes title bar
    
    // Start creating two fonts, one underlined , other non underlined
    //
    // LOGFONT structure for font properties
    LOGFONT lf;
    ::ZeroMemory (&lf, sizeof (lf));
    lf.lfHeight = 100;
    lf.lfWeight = FW_BOLD;
    lf.lfUnderline = TRUE;

    ::strcpy (lf.lfFaceName, _T("Arial"));

    // Prepare for an underlined font