gizmoapi.c

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 * Return Value:
 *  BOOL            TRUE if the function was successful, FALSE
 *                  otherwise.
 */

BOOL WINAPI GBGizmoShow(HWND hWnd, UINT uID, BOOL fShow)
    {
    BOOL        fRet=FALSE;
    PGIZMO      pGizmo;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        {
        if (fShow && pGizmo->fHidden)
            {
            if (NULL!=pGizmo->hWnd)
                ShowWindow(pGizmo->hWnd, SW_SHOWNORMAL);

            GizmosExpand(pGizmo);
            }

        if (!fShow && !pGizmo->fHidden)
            {
            if (NULL!=pGizmo->hWnd)
                ShowWindow(pGizmo->hWnd, SW_HIDE);

            GizmosCompact(pGizmo);
            }

        //This will be right even if we didn't change anything.
        pGizmo->fHidden=!fShow;
        }

    InvalidateRect(hWnd, NULL, TRUE);
    UpdateWindow(hWnd);
    return fRet;
    }






/*
 * GBGizmoEnable
 *
 * Purpose:
 *  Enables or disables a control on the GizmoBar.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier of the gizmo to affect.
 *  fEnable         BOOL TRUE to enable the gizmo, FALSE otherwise.
 *
 * Return Value:
 *  BOOL            TRUE if the gizmo was previously disabled, FALSE
 *                  otherwise.
 */

BOOL WINAPI GBGizmoEnable(HWND hWnd, UINT uID, BOOL fEnable)
    {
    PGIZMO      pGizmo;
    BOOL        fRet=FALSE;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL==pGizmo)
        return FALSE;

    fRet=(BOOL)(BUTTONGROUP_DISABLED & pGizmo->uState);

    //Use windows to enable or disable window gizmos
    if (NULL!=pGizmo->hWnd)
        EnableWindow(pGizmo->hWnd, fEnable);
    else
        {
        /*
         * If we're not down, command and attribute buttons act
         * the same.
         */
        if (!(BUTTONGROUP_DOWN & pGizmo->uState))
            {
            GizmoPStateSet(hWnd, pGizmo, fEnable
                ? COMMANDBUTTON_UP : COMMANDBUTTON_DISABLED);
            }
        else
            {
            /*
             * Attribute buttons are a little more sensitive with
             * DOWNDISABLED
             */
            GizmoPStateSet(hWnd, pGizmo, fEnable
                ? ATTRIBUTEBUTTON_DOWN
                : ATTRIBUTEBUTTON_DOWNDISABLED);
            }
        }

    return fRet;
    }







/*
 * GBGizmoCheck
 *
 * Purpose:
 *  Checks or unchecks an attribute button in the GizmoBar.  If the
 *  gizmo is part of a group of mutually exclusive attributes, then
 *  other gizmos are unchecked when this one is checked.  If this is
 *  the only one checked in these circumstances, this function is a
 *  NOP.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier of the gizmo to affect.
 *  fCheck          BOOL TRUE to check this gizmo, FALSE to uncheck.
 *
 * Return Value:
 *  BOOL            TRUE if the change took place.  FALSE otherwise.
 */

BOOL WINAPI GBGizmoCheck(HWND hWnd, UINT uID, BOOL fCheck)
    {
    PGIZMOBAR   pGB;
    PGIZMO      pGizmo;

    if (!IsWindow(hWnd))
        return FALSE;

    pGB=(PGIZMOBAR)GetWindowLong(hWnd, GBWL_STRUCTURE);

    if (NULL==pGB)
        return FALSE;

    pGizmo=GizmoPFind(&pGB->pGizmos, uID);

    if (NULL!=pGizmo)
        GizmoPCheck(hWnd, pGizmo, fCheck);

    return TRUE;
    }






/*
 * GBGizmoFocusSet
 *
 * Purpose:
 *  Sets the focus to a partuclar gizmo in the gizmo if that gizmo
 *  can accept the focus.  Separators, attribute buttons, text,
 *  and command buttons cannot have the focus.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier of the gizmo to affect.
 *
 * Return Value:
 *  BOOL            TRUE if the focus was set.  FALSE otherwise,
 *                  such as when uID identifies a control that cannot
 *                  have focus.
 */

UINT WINAPI GBGizmoFocusSet(HWND hWnd, UINT uID)
    {
    PGIZMO      pGizmo;
    BOOL        fRet=FALSE;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo && NULL!=pGizmo->hWnd)
        {
        fRet=TRUE;
        SetFocus(pGizmo->hWnd);
        }

    return fRet;
    }





/*
 * GBGizmoExist
 *
 * Purpose:
 *  Determines if a gizmo of a given identifier exists in the
 *  GizmoBar.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier to verify.
 *
 * Return Value:
 *  BOOL            TRUE if the gizmo exists, FALSE otherwise.
 */

BOOL WINAPI GBGizmoExist(HWND hWnd, UINT uID)
    {
    return (NULL!=PGizmoFromHwndID(hWnd, uID));
    }





/*
 * GBGizmoTypeGet
 *
 * Purpose:
 *  Returns the type of the gizmo specified by the given identifer.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier to find.
 *
 * Return Value:
 *  int             A GIZMOTYPE_* value if the function is
 *                  successful, otherwise -1.
 */

int WINAPI GBGizmoTypeGet(HWND hWnd, UINT uID)
    {
    int         iRet=-1;
    PGIZMO      pGizmo;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        iRet=pGizmo->iType;

    return iRet;
    }





/*
 * GBGizmoDataSet
 * GBGizmoDataGet
 *
 * Purpose:
 *  Sets or retrieves an extra DWORD value associated with the given
 *  gizmo.  Applications can store any information here they please.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier of the gizmo.
 *  dwData          (Set only) DWORD data to store with the gizmo.
 *
 * Return Value:
 *  DWORD           Set:  Previous value
 *                  Get:  Current value
 */

DWORD WINAPI GBGizmoDataSet(HWND hWnd, UINT uID, DWORD dwData)
    {
    PGIZMO      pGizmo;
    DWORD       dw=0L;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        {
        dw=pGizmo->dwData;
        pGizmo->dwData=dwData;
        }

    return dw;
    }



DWORD WINAPI GBGizmoDataGet(HWND hWnd, UINT uID)
    {
    PGIZMO      pGizmo;
    DWORD       dw=0L;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        dw=pGizmo->dwData;

    return dw;
    }






/*
 * GBGizmoNotifySet
 * GBGizmoNotifyGet
 *
 * Purpose:
 *  Sets or retrieves the notify status of a gizmo.  If notify is
 *  FALSE, the no WM_COMMAND messages are sent from the GizmoBar to
 *  the parent window when this gizmo is used.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifier of the gizmo.
 *  fNotify         (Set only) BOOL new notify status to set.
 *
 * Return Value:
 *  BOOL            Set:  Previous value of the notify flag.
 *                  Get:  Current value of the notify flag.
 */

BOOL WINAPI GBGizmoNotifySet(HWND hWnd, UINT uID, BOOL fNotify)
    {
    PGIZMO      pGizmo;
    BOOL        fRet=FALSE;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        {
        fRet=pGizmo->fNotify;
        pGizmo->fNotify=fNotify;
        }

    return fRet;
    }


BOOL WINAPI GBGizmoNotifyGet(HWND hWnd, UINT uID)
    {
    PGIZMO      pGizmo;
    BOOL        fRet=FALSE;

    pGizmo=PGizmoFromHwndID(hWnd, uID);

    if (NULL!=pGizmo)
        fRet=pGizmo->fNotify;

    return fRet;
    }







/*
 * GBGizmoTextSet
 * GBGizmoTextGet
 *
 * Purpose:
 *  Retrieves or sets text in a GizmoBar gizmo.  Separators, command
 *  buttons, and attribute buttons are not affected by this call.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifying the gizmo.
 *  psz             LPTSTR (Set) providing the text to show in the
 *                  window or (Get) pointing to a buffer to receive
 *                  the text.
 *  cch             (Get only) UINT maximum number of chars to copy
 *                  to psz.
 *
 * Return Value:
 *  int             Number of characters copied to psz.
 */

void WINAPI GBGizmoTextSet(HWND hWnd, UINT uID, LPTSTR psz)
    {
    //This fails on non-windowed gizmos anyway, so we don't check.
    SetDlgItemText(hWnd, uID, psz);
    return;
    }


int WINAPI GBGizmoTextGet(HWND hWnd, UINT uID, LPTSTR psz, UINT cch)
    {
    //This fails on non-windowed gizmos anyway, so we don't check.
    return GetDlgItemText(hWnd, uID, psz, cch);
    }








/*
 * GBGizmoIntSet
 * GBGizmoIntGet
 *
 * Purpose:
 *  Retrieves or sets an integer in a GizmoBar gizmo.  Separators,
 *  command buttons, and attribute buttons are not affected by this
 *  call.
 *
 * Parameters:
 *  hWnd            HWND of the GizmoBar.
 *  uID             UINT identifying the gizmo.
 *
 *  (Set only)
 *  u               UINT value to set in the gizmo.
 *  fSigned         BOOL TRUE to indicate if the value is signed.
 *
 *  (Get only)
 *  pfTrans         BOOL FAR * in which the success of the function
 *                  is returned.
 *  fSigned         BOOL TRUE to indicate if the value is signed.
 *
 * Return Value:
 *  (Set): None
 *  (Get): UINT     Integer translation of the gizmo's text.
 */

void WINAPI GBGizmoIntSet(HWND hWnd, UINT uID, UINT u, BOOL fSigned)
    {
    //This fails on non-windowed gizmos anyway, so we don't check.
    SetDlgItemInt(hWnd, uID, u, fSigned);
    return;
    }



UINT WINAPI GBGizmoIntGet(HWND hWnd, UINT uID, BOOL FAR *pfTrans
    , BOOL fSigned)
    {
    //This fails on non-windowed gizmos anyway, so we don't check.
    return GetDlgItemInt(hWnd, uID, pfTrans, fSigned);
    }