ComboBox.cpp

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/*
        Copyright 2003 Joseph Alvis

    This file is part of Aswang.

    Aswang is free software: you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as published by
    the Free Software Foundation, either version 3 of the License, or
    (at your option) any later version.

    Aswang is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU Lesser General Public License for more details.

    You should have received a copy of the GNU Lesser General Public License
    along with Aswang.  If not, see <http://www.gnu.org/licenses/>.
*/

#include "Combobox.h"

using namespace aswang;

long ComboBox::AddString(AswangStr s) const {
        if(hWnd != NULL) {
                return (LONG)SendMessage(hWnd,CB_ADDSTRING,0,(LPARAM)s.c_str());
        }
        return -1;
}

long ComboBox::AddString(AswangStr s,long data) const {
        if(hWnd != NULL) {
                long result = (LONG)SendMessage(hWnd,CB_ADDSTRING,0,(LPARAM)s.c_str());
                if(result != CB_ERR)
                        SendMessage(hWnd,CB_SETITEMDATA,result,data);
                return result;
        }
        return -1;
}

long ComboBox::AddUniqueString(AswangStr s) const {
        if(hWnd != NULL) {
                if(FindString(s)<0)
                        return (LONG)SendMessage(hWnd,CB_ADDSTRING,0,(LPARAM)s.c_str());
        }
        return -1;
}

long ComboBox::AddUniqueString(AswangStr s,long data) const {
        if(hWnd != NULL) {
                if(FindString(s)<0) {
                        long result = (LONG)SendMessage(hWnd,CB_ADDSTRING,0,(LPARAM)s.c_str());
                        if(result != CB_ERR)
                                SendMessage(hWnd,CB_SETITEMDATA,result,data);
                        return result;
                }
        }
        return -1;
}

long ComboBox::FindPrefix(AswangStr s,long index) const {
        if(hWnd != NULL) {
                long result = (LONG)SendMessage(hWnd,CB_FINDSTRING,(WPARAM)index,(LPARAM)s.c_str());
                if(result >= CB_OKAY)
                        return result;
        }
        return -1;
}

long ComboBox::FindString(AswangStr s,long index) const {
        if(hWnd != NULL) {
                long result = (LONG)SendMessage(hWnd,CB_FINDSTRINGEXACT,(WPARAM)index,(LPARAM)s.c_str());
                if(result >= CB_OKAY)
                        return result;
        }
        return -1;
}

long ComboBox::Count() const {
        if(hWnd != NULL) {
                return (LONG)SendMessage(hWnd,CB_GETCOUNT,0,0);
        }
        return 0;
}

AswangStr ComboBox::GetSelectedString() const {
        if(hWnd != NULL) {
                long index = (LONG)SendMessage(hWnd,CB_GETCURSEL,0,0);
                if(index >= CB_OKAY) {
                        return GetString(index);
                }
        }
        return AswangStr();
}

long ComboBox::GetSelectedIndex() const {
        if(hWnd != NULL) {
                return (LONG)SendMessage(hWnd,CB_GETCURSEL,0,0);
        }
        return -1;
}

void ComboBox::SetSelectedIndex(long index) const {
        if(hWnd != NULL) {
                SendMessage(hWnd,CB_SETCURSEL,index,0);
        }
}

AswangStr ComboBox::GetString(long index) const {
        AswangStr s;
        if(hWnd != NULL && index >= 0) {
                long len = (LONG)SendMessage(hWnd,CB_GETLBTEXTLEN,index,0);
                if(len > CB_ERR) {
                        _TCHAR *txt = new _TCHAR[len+1];
                        txt[len]=0;
                        if(SendMessage(hWnd,CB_GETLBTEXT,index,(LPARAM)txt) > CB_ERR) {
                                s = txt;
                        }
                        delete[] txt;
                }
        }
        return s;
}

void ComboBox::DeleteString(long index) const {
        if(hWnd != NULL && index >= 0) {
                SendMessage(hWnd,CB_DELETESTRING,index,0);
        }
}

HWND ComboBox::GetEditWindow() const {
        if(hWnd != NULL) {
                COMBOBOXINFO cbi;
                memset(&cbi,0,sizeof(cbi));
                cbi.cbSize=sizeof(cbi);
                GetComboBoxInfo(hWnd,&cbi);
                return cbi.hwndItem;
        }
        return NULL;
}

void ComboBox::SetItemData(long index,long data) const {
        if(hWnd != NULL && index >=0) {
                SendMessage(hWnd,CB_SETITEMDATA,index,data);
        }
}

long ComboBox::GetItemData(long index) const {
        if(hWnd != NULL && index >= 0) {
                return (LONG)SendMessage(hWnd,CB_GETITEMDATA,index,0);
        }
        return -1;
}

long ComboBox::operator [] (long index) const {
        return GetItemData(index);
}