combobox.c

libminigui-1.3.0.tar.gz。 miniGUI的库函数源代码！

                    SendMessage (pData->ListBoxControl, MSG_KEYDOWN, SCANCODE_PAGEDOWN, 0);
                else
                    SendMessage (pData->ListBoxControl, MSG_KEYDOWN, SCANCODE_PAGEUP, 0);
                break;

            case CBS_AUTOSPIN:
            {
                char buffer [LEN_SPINVALUE+1];
                int cur_value, new_value;

                GetWindowText (pData->EditControl, buffer, LEN_SPINVALUE);
#if 0
                cur_value = new_value = strtol (buffer, NULL, 0);
#else
                sscanf (buffer, pData->str_format, &cur_value);
                new_value = cur_value;
#endif
                if (wParam) {
                    new_value -= pData->fastspin_pace;
                }
                else {
                    new_value += pData->fastspin_pace;
                }

                if (dwStyle & CBS_AUTOLOOP) {
                    if (new_value > pData->spin_max)
                        new_value = pData->spin_min;
                    else if (new_value < pData->spin_min)
                        new_value = pData->spin_max;
                }
                else {
                    if (new_value > pData->spin_max)
                        new_value = pData->spin_max;
                    else if (new_value < pData->spin_min)
                        new_value = pData->spin_min;
                }

                if (new_value != cur_value) {
                    snprintf (buffer, LEN_SPINVALUE, pData->str_format, new_value);
                    SetWindowText (pData->EditControl, buffer);
                    if (dwStyle & CBS_NOTIFY)
                        NotifyParent (hwnd, pCtrl->id, CBN_EDITCHANGE);
                }
                break;
            }
            }
            break;

        break;
    }
    
    if ((dwStyle & CBS_TYPEMASK) == CBS_AUTOSPIN) {
        switch (message) {
            case CB_SETSPINFORMAT:
            {
                free (pData->str_format);
                if ((pData->str_format = strdup ((const char*)lParam)))
                    return CB_OKAY;

                return CB_ERR;
            }

            case CB_SETSPINRANGE:
            {
                char buffer [LEN_SPINVALUE+1];
                int new_min = (int)wParam;
                int new_max = (int)lParam;
                int cur_value;

                if (new_min > new_max)
                    return CB_ERR;

                pData->spin_min = (int)wParam;
                pData->spin_max = (int)lParam;
                GetWindowText (pData->EditControl, buffer, LEN_SPINVALUE);

#if 0
                cur_value = strtol (buffer, NULL, 0);
#else
                sscanf (buffer, pData->str_format, &cur_value);
#endif
                if (cur_value < pData->spin_min) {
                    snprintf (buffer, LEN_SPINVALUE, pData->str_format, pData->spin_min);
                    SetWindowText (pData->EditControl, buffer);
                }
                else if (cur_value > pData->spin_max) {
                    snprintf (buffer, LEN_SPINVALUE, pData->str_format, pData->spin_max);
                    SetWindowText (pData->EditControl, buffer);
                }

                return CB_OKAY;
            }

            case CB_GETSPINRANGE:
            {
                int* spin_min = (int*)wParam;
                int* spin_max = (int*)lParam;

                if (spin_min) *spin_min = pData->spin_min;
                if (spin_max) *spin_max = pData->spin_max;
                return CB_OKAY;
            }

            case CB_SETSPINVALUE:
            {
                int new_value = (int)wParam;
                char buffer [LEN_SPINVALUE+1];

                if (new_value < pData->spin_min || new_value > pData->spin_max)
                    return CB_ERR;

                snprintf (buffer, LEN_SPINVALUE, pData->str_format, new_value);
                SetWindowText (pData->EditControl, buffer);
                return CB_OKAY;
            }

            case CB_GETSPINVALUE:
            {
                char buffer [LEN_SPINVALUE+1];
                int value;

                GetWindowText (pData->EditControl, buffer, LEN_SPINVALUE);
                sscanf (buffer, pData->str_format, &value);
                return value;
                // return strtol (buffer, NULL, 0);
            }

            case CB_SETSPINPACE:
            {
                int pace = (int)wParam;
                int fastpace = (int)lParam;

                if (pace != 0)
                    pData->spin_pace = pace;
                if (fastpace != 0)
                    pData->fastspin_pace = fastpace;

                return CB_OKAY;
            }

            case CB_GETSPINPACE:
            {
                int *pace = (int*)wParam;
                int *fastpace = (int*)lParam;

                if (pace)
                    *pace = pData->spin_pace;
                if (*fastpace)
                    *fastpace = pData->fastspin_pace;

                return CB_OKAY;
            }
        }
        return DefaultControlProc (hwnd, message, wParam, lParam);
    }
    else
        return DefCBProc (hwnd, message, wParam, lParam);
}

static int DefCBProc (HWND hWnd, int message, WPARAM wParam, LPARAM lParam)
{
    PCOMBOBOXDATA pData;
    int len, index;
    char *selection;
    int  rc;

    pData = (COMBOBOXDATA *) Control(hWnd)->dwAddData2;
    switch (message) {
        /* messages specific to the listbox control */
        case CB_SETSTRCMPFUNC:
            return SendMessage (pData->ListBoxControl, LB_SETSTRCMPFUNC, wParam, lParam);

        case CB_ADDSTRING:
            rc = SendMessage (pData->ListBoxControl, LB_ADDSTRING, wParam, lParam);
            if (rc >= 0)
                pData->nListItems++; 
            return rc;

        case CB_DELETESTRING:
            rc = SendMessage (pData->ListBoxControl, LB_DELETESTRING, wParam, lParam);
            if (rc == 0)
                pData->nListItems--;
            return rc;

        case CB_DIR:
            return SendMessage (pData->ListBoxControl, LB_DIR, wParam, lParam);
            
        case CB_FINDSTRING:
            return SendMessage (pData->ListBoxControl, LB_FINDSTRING, wParam, lParam);
            
        case CB_FINDSTRINGEXACT:
               return SendMessage (pData->ListBoxControl, LB_FINDSTRINGEXACT, wParam, lParam);
            
        case CB_GETCOUNT:
            return SendMessage (pData->ListBoxControl, LB_GETCOUNT, wParam, lParam);
            
        case CB_GETITEMADDDATA:
            return SendMessage (pData->ListBoxControl, LB_GETITEMADDDATA, wParam, lParam);
            
        case CB_SETITEMADDDATA:
            return SendMessage (pData->ListBoxControl, LB_SETITEMADDDATA, wParam, lParam);
            
        case CB_GETITEMHEIGHT:
            return SendMessage (pData->ListBoxControl, LB_GETITEMHEIGHT, wParam, lParam);
            
        case CB_SETITEMHEIGHT:
            return SendMessage (pData->ListBoxControl, LB_SETITEMHEIGHT, wParam, lParam);
            
        case CB_GETLBTEXT:
            return SendMessage (pData->ListBoxControl, LB_GETTEXT, wParam, lParam);
            
        case CB_GETLBTEXTLEN:
            return SendMessage (pData->ListBoxControl, LB_GETTEXTLEN, wParam, lParam);
            
        case CB_INSERTSTRING:
            return SendMessage (pData->ListBoxControl, LB_INSERTSTRING, wParam, lParam);
            
        case CB_GETCURSEL:
            return SendMessage (pData->ListBoxControl, LB_GETCURSEL, wParam, lParam);

        case CB_SETCURSEL:
            if (SendMessage (pData->ListBoxControl, LB_SETCURSEL, wParam, lParam) == LB_ERR)
                return CB_ERR;

            index = SendMessage (pData->ListBoxControl, LB_GETCURSEL, wParam, lParam);
            len = SendMessage (pData->ListBoxControl, LB_GETTEXTLEN, index, 0);
            if (len <= 0)
                return CB_ERR;

            //selection = alloca (len + 1);  
            selection = FixStrAlloc (len + 1);  
            SendMessage (pData->ListBoxControl, LB_GETTEXT, (WPARAM)index, (LPARAM)selection);
            SetWindowText (pData->EditControl, selection);
            FreeFixStr (selection);
            break;

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

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

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

        case MSG_GETTEXTLENGTH:
            return SendMessage (pData->EditControl, MSG_GETTEXTLENGTH, wParam, lParam);

        case MSG_GETTEXT:
            return SendMessage (pData->EditControl, MSG_GETTEXT, wParam, lParam);

        case MSG_SETTEXT:
            return SendMessage (pData->EditControl, MSG_SETTEXT, wParam, lParam);

        /* messages handled by the combobox itself */
        case CB_GETDROPPEDCONTROLRECT:
            if (pData->ListBoxControl) {
                CopyRect ((PRECT)lParam, &pData->ListBoxRect);
                return 0;
            }
            return CB_ERR;

        case CB_GETDROPPEDSTATE:
            return IS_SET (pData, CSF_CAPTUREACTIVE);

        case CB_RESETCONTENT:
            SendMessage (pData->ListBoxControl, LB_RESETCONTENT, 0, 0);
            SetWindowText (pData->EditControl, "");
            return 0;

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

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

            //selection = alloca (len + 1);  
            selection = FixStrAlloc (len + 1);  
            rc = SendMessage (pData->ListBoxControl, LB_GETTEXT, (WPARAM)index, (LPARAM)selection);
            SetWindowText (pData->EditControl, selection);
            FreeFixStr (selection);
            break;
     }

    return DefaultControlProc (hWnd, message, wParam, lParam);
}

#endif /* _CTRL_COMBOBOX */