combobox.c

TN-kernel内核针对LPC系列ARM7处理器和S3C44B0X重新定制好的源代码包。内含Nano-X GUI。

        GetTextMetrics(hDC,&tm);
        ReleaseDC(hWnd,hDC);
        wEditHeight = tm.tmHeight + 3 * tm.tmInternalLeading;

        if (wEditHeight == lp->uHeight)
            return 0L;

        lp->uHeight = (UINT)wEditHeight;
        lp->ButtonRect.bottom = wEditHeight;
        /*
        **   The following SetWindowPos causes WM_WINDOWPOSCHANGING message
        **   where child windows are resized and/or moved.
        */
        ShowWindow(hWnd, SW_HIDE);
        GetClientRect(hWnd,&rcClient);
        if ((lp->wStyle & 0xf) != CBS_SIMPLE)
           SetWindowPos(hWnd, 0,
                        0, 0, rcClient.right, (int)wEditHeight,
                        SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW);
        else SetWindowPos(hWnd, 0,
                          0, 0, rcClient.right, (int)wEditHeight + lp->ListBoxRect.bottom - lp->ListBoxRect.top + 1,
                          SWP_NOACTIVATE | SWP_NOMOVE | SWP_NOZORDER | SWP_NOREDRAW);
        ShowWindow(hWnd, SW_SHOWNA);

        if (lp->EditControl)
           SendMessage(lp->EditControl, WM_SETFONT, wParam,lParam);
        SendMessage(lp->ListBoxControl, WM_SETFONT, wParam,lParam);

        if(LOWORD(lParam))
            RedrawWindow(hWnd,(const RECT *)0,(HRGN)0,
            RDW_INVALIDATE | RDW_ERASE | RDW_UPDATENOW );
        return (LRESULT)0;

    case WM_GETFONT:
        return lp->hFont;
#endif        /* WM_SETFONT/WM_GETFONT */

    case WM_MOVE: /*WM_WINDOWPOSCHANGING:*/
#if 0
        lpwp = (LPWINDOWPOS)lParam;
#else
        pp.x=LOWORD(lParam);
        pp.y=HIWORD(lParam);
#endif
        if (1)/*(lpwp)*/ {
        if (1)/*(!(lpwp->flags & SWP_NOSIZE))*/ {
            lp->ButtonRect.right  = (hWnd->winrect.right-hWnd->winrect.left);        /* lpwp->cx; */
            if ((lp->wStyle & 0xf) == CBS_SIMPLE)
               lp->ButtonRect.left = lp->ButtonRect.right;
            else lp->ButtonRect.left = (hWnd->winrect.right-hWnd->winrect.left)/*lpwp->cx*/ - 1 -
                    GetSystemMetrics(SM_CXVSCROLL);

            if (lp->EditControl)
               {
               wEditWidth = lp->ButtonRect.left + 1;
               if ((lp->wStyle & 0xf) == CBS_SIMPLE)
                  wEditWidth --;
               if ((lp->wStyle & 0xf) == CBS_DROPDOWN)
                  wEditWidth -= 5;
               SetWindowPos(lp->EditControl,(HWND)0,
                            0,0,
                            wEditWidth, lp->uHeight,
                            SWP_NOACTIVATE|SWP_NOMOVE|SWP_NOZORDER);
               }
            if (lp->ListBoxControl)
               {
               if ((lp->wStyle & 0x0F) == CBS_SIMPLE)
                  {
                  lp->ListBoxRect.left = 5;
                  lp->ListBoxRect.top = lp->uHeight - 1;
                  lp->ListBoxRect.right = (hWnd->winrect.right-hWnd->winrect.left);        /* lpwp->cx; */
                  lp->ListBoxRect.bottom = (hWnd->winrect.bottom-hWnd->winrect.top)/*lpwp->cy*/ - 2;
                  }
               else {
                    POINT cp;
                    cp.x = 0;
                    cp.y = lp->uHeight - 1;
                    ClientToScreen(hWnd, &cp);
                    OffsetRect(&lp->ListBoxRect, cp.x - lp->ListBoxRect.left, cp.y - lp->ListBoxRect.top);

                    lp->ListBoxRect.right = lp->ListBoxRect.left + (hWnd->winrect.right-hWnd->winrect.left)/*lpwp->cx*/;
                    if ((lp->wStyle & 0xf) != CBS_DROPDOWNLIST)
                       lp->ListBoxRect.right -= 5;
                    }

               SetWindowPos(lp->ListBoxControl,(HWND)0,
                            lp->ListBoxRect.left, lp->ListBoxRect.top,
                            lp->ListBoxRect.right - lp->ListBoxRect.left,
                            lp->ListBoxRect.bottom - lp->ListBoxRect.top,
                            SWP_NOACTIVATE|SWP_NOZORDER);
               }
#if 0        /* jmt: fix: no WM_WINDOWPOSCHANGING */
            /* the height of the normal state stays the same */
            if ((lp->wStyle & 0xf) != CBS_SIMPLE)
               lpwp->cy = (int)lp->uHeight;
#endif
            }
        }
        return (LRESULT)0;

    case WM_WINDOWPOSCHANGED:
        DefWindowProc(hWnd,uMsg,wParam,lParam);
        lpwp = (LPWINDOWPOS)lParam;
        if (lpwp) {
                       if (!(lpwp->flags & SWP_NOSIZE)) /* TODO */
#if 0
                            RedrawWindow(hWnd,(const RECT *)0,(HRGN)0,
                                    RDW_INVALIDATE|RDW_ERASE);
#else
                        InvalidateRect(hWnd,NULL,TRUE);
#endif
        }
        return (LRESULT)0;

#if 0        /* jmt: fix: no ownerdraw */
    /* *******************************************/
    /* ownerdraw stuff               */
    /* *******************************************/
    case WM_DRAWITEM:
        lpdis = (LPDRAWITEMSTRUCT)lParam;
        lpdis->CtlType = ODT_COMBOBOX;
        lpdis->CtlID = lp->nID;
        lpdis->hwndItem = hWnd;
        return SendMessage(lp->hWndParent,WM_DRAWITEM,
                (WPARAM)lp->nID,lParam);

    case WM_MEASUREITEM:
        lpmis = (LPMEASUREITEMSTRUCT)lParam;
        lpmis->CtlType = ODT_COMBOBOX;
        lpmis->CtlID = lp->nID;
        return SendMessage(lp->hWndParent,WM_MEASUREITEM,
                (WPARAM)lp->nID,lParam);

    case WM_DELETEITEM:
        lpdlis = (LPDELETEITEMSTRUCT)lParam;
        lpdlis->CtlType = ODT_COMBOBOX;
        lpdlis->CtlID = lp->nID;
        lpdlis->hwndItem = hWnd;
        return SendMessage(lp->hWndParent,WM_DELETEITEM,
                (WPARAM)lp->nID,lParam);

    case WM_CONVERT:
        if (!lpComboBinToNat) {
                hComboClass32 = FindClass("COMBOBOX",0);
                lpComboBinToNat = (WNDPROC)GetClassHandleLong(
                        hComboClass32,GCL_BINTONAT);
        }
        if (lpComboBinToNat)
        return lpComboBinToNat(hWnd, uMsg, wParam, lParam);
        else
        return (LRESULT)0;
#endif        /* ownerdraw */

    default:
        return DefCBProc( hWnd, uMsg, wParam, lParam);
    }
    return rc;
}

/* **********************************************************************
**
************************************************************************/
static LRESULT DefCBProc(HWND hWnd, UINT uMsg, WPARAM wParam, LPARAM lParam)
{
    int       len,index;
    COMBOBOX *lp;
    char     *selection;
    int   rc;
    POINT   cp;

    lp = (COMBOBOX *) hWnd->userdata/*GetWindowLong(hWnd,CWD_LPCBDATA)*/;
    switch(uMsg) {
        /* *******************************************/
        /* messages specific to the list box control */
        /* *******************************************/
        case CB_ADDSTRING:
            lp->nListItems++;  /* shd. test for successful return */
            return SendMessage(lp->ListBoxControl,LB_ADDSTRING,
                wParam,lParam);

        case CB_DELETESTRING:
            if (lp->nListItems)
              lp->nListItems--;
            return SendMessage(lp->ListBoxControl,LB_DELETESTRING,
                wParam,lParam);

        case CB_DIR:
            return SendMessage(lp->ListBoxControl,LB_DIR,
                wParam,lParam);

        case CB_FINDSTRING:
            return SendMessage(lp->ListBoxControl,LB_FINDSTRING,
                wParam,lParam);

        case CB_FINDSTRINGEXACT:
               return SendMessage(lp->ListBoxControl,LB_FINDSTRINGEXACT,
                wParam,lParam);

        case CB_GETCOUNT:
            return SendMessage(lp->ListBoxControl,LB_GETCOUNT,
                wParam,lParam);

        case CB_GETCURSEL:
            return SendMessage(lp->ListBoxControl,LB_GETCURSEL,
                wParam,lParam);

        case CB_GETITEMDATA:
            return SendMessage(lp->ListBoxControl,LB_GETITEMDATA,
                wParam,lParam);

        case CB_GETITEMHEIGHT:
            return SendMessage(lp->ListBoxControl,LB_GETITEMHEIGHT,
                wParam,lParam);

        case CB_GETLBTEXT:
            return SendMessage(lp->ListBoxControl,LB_GETTEXT,
                wParam,lParam);

        case CB_GETLBTEXTLEN:
            return SendMessage(lp->ListBoxControl,LB_GETTEXTLEN,
                wParam,lParam);

        case CB_INSERTSTRING:
            return SendMessage(lp->ListBoxControl,LB_INSERTSTRING,
                wParam,lParam);

        case CB_SETITEMDATA:
            return SendMessage(lp->ListBoxControl,LB_SETITEMDATA,
                wParam,lParam);

        /* *******************************************/
        /* messages specific to the edit control */
        /* *******************************************/
        case CB_GETEDITSEL:
            return SendMessage(lp->EditControl,EM_GETSEL,0,0);

        case CB_LIMITTEXT:
            return SendMessage(lp->EditControl,EM_LIMITTEXT,
                wParam,lParam);

        case CB_SETEDITSEL:
            return SendMessage(lp->EditControl,EM_SETSEL,
                wParam,lParam);

        /* *******************************************/
        /* messages handled by the combobox          */
        /* *******************************************/
        case CB_GETDROPPEDCONTROLRECT:
            CopyRect((LPRECT)lParam,&lp->ListBoxRect);
            break;
        case CB_GETDROPPEDSTATE:
            return IS_SET(lp,CSF_CAPTUREACTIVE);

        case CB_GETEXTENDEDUI:
            return (LRESULT)lp->bExtended;

        case CB_RESETCONTENT:
            SendMessage(lp->ListBoxControl,LB_RESETCONTENT,0,0);
            if (lp->EditControl)
               SendMessage(lp->EditControl,WM_SETTEXT,0,(LPARAM)(LPSTR)"");
            break;

        case CB_SELECTSTRING:
            index = (int)SendMessage(lp->ListBoxControl, LB_SELECTSTRING, wParam, lParam);
            if (index == LB_ERR)
               return CB_ERR;

            len = (int)SendMessage(lp->ListBoxControl, LB_GETTEXTLEN, index, 0);
            if (len <= 0)
               return CB_ERR;

            selection = (LPSTR)GdMalloc((UINT)len+1);
            rc = (int)SendMessage(lp->ListBoxControl, LB_GETTEXT, (WPARAM)index, (LPARAM)selection);
            if (lp->EditControl)
               rc = (int)SendMessage(lp->EditControl, WM_SETTEXT, 0, (LPARAM)selection);
            else CBoxDrawStatic(lp, hWnd, index);
            WinFree(selection);
            break;

        case CB_SETCURSEL:
            rc = (int)SendMessage(lp->ListBoxControl, LB_SETCURSEL, wParam, lParam);
            if (rc == LB_ERR)
               return CB_ERR;
            len = (int)SendMessage(lp->ListBoxControl, LB_GETTEXTLEN, wParam, 0);
            if (len <= 0)
               return CB_ERR;

            selection = (LPSTR)GdMalloc((UINT)len+1);
            rc = (int)SendMessage(lp->ListBoxControl, LB_GETTEXT, wParam, (LPARAM)selection);
            if (lp->EditControl)
               rc = (int)SendMessage(lp->EditControl, WM_SETTEXT, 0, (LPARAM)selection);
            else CBoxDrawStatic(lp, hWnd, wParam);
            WinFree(selection);
            return (LRESULT)wParam;

        case CB_SETEXTENDEDUI:
            lp->bExtended = (BOOL)wParam;
            break;

        case CB_SETITEMHEIGHT:      /* TODO */
            break;

        case CB_SHOWDROPDOWN:
            if ((lp->wStyle & 0xf) == CBS_SIMPLE)
                return 1L;
            if (wParam)
            {
               if (IS_SET(lp,CSF_CAPTUREACTIVE))
                  return 1L;

               cp.x = ((lp->wStyle & 0xf) != CBS_DROPDOWNLIST) ? 5 : 0;
               cp.y = lp->uHeight -1;

               ClientToScreen(hWnd, &cp);
               OffsetRect(&lp->ListBoxRect, cp.x - lp->ListBoxRect.left, cp.y - lp->ListBoxRect.top);

               SetWindowPos(lp->ListBoxControl, 0,
                            cp.x, cp.y, 0, 0,
                            SWP_NOSIZE | SWP_NOZORDER | SWP_NOACTIVATE);

               SendMessage(lp->hWndParent,WM_COMMAND, GET_WM_COMMAND_MPS(lp->nID,hWnd,CBN_DROPDOWN));

               fprintf(stderr," 1330: SetWindowPos(lp->ListBoxControl, , 0, 0, 0, 0,..)\n");

               SetWindowPos(lp->ListBoxControl, HWND_TOP,
                            0, 0, 0, 0,
                            SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_SHOWWINDOW);

                CBoxCapture(hWnd, 1);
                SET_STATE(lp,CSF_CAPTUREACTIVE);
             }
            else
            {
                 if (!IS_SET(lp,CSF_CAPTUREACTIVE))
                    return 1L;

                 SendMessage(lp->hWndParent, WM_COMMAND, GET_WM_COMMAND_MPS(lp->nID,hWnd,CBN_CLOSEUP));
/* test: */
                   fprintf(stderr," 1343: (hide) SetWindowPos(lp->ListBoxControl, , 0, 0, 0, 0,..)\n");

                 SetWindowPos(lp->ListBoxControl, 0,
                              0, 0, 0, 0,
                              SWP_NOMOVE | SWP_NOSIZE | SWP_NOACTIVATE | SWP_NOZORDER | SWP_HIDEWINDOW);

                 CBoxCapture(hWnd, 0);
                 CLEAR_STATE(lp, CSF_CAPTUREACTIVE);
             }
            return 1L;

        /* *******************************************/
        /* messages handled by the defwindowproc.... */
        /* *******************************************/
        default:
            return DefWindowProc( hWnd, uMsg, wParam, lParam);
    }
    return CB_OKAY;
}