wxdragon-sys 0.4.1

Raw FFI bindings to libwxdragon (which statically links wxWidgets).
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#include "wx/listbox.h"
#include "wx/window.h"
#include "wx/string.h"
#include "wx/arrstr.h"
#include "wx/defs.h" // For wxNOT_FOUND
#include "../include/wxdragon.h"
#include "wxd_utils.h"

extern "C" {

WXD_EXPORTED wxd_ListBox_t* wxd_ListBox_Create(
    wxd_Window_t* parent,
    wxd_Id id,
    wxd_Point pos,
    wxd_Size size,
    wxd_Style_t style
) {
    wxWindow* parentWin = (wxWindow*)parent;
    if (!parentWin) return nullptr;

    wxListBox* listbox = new wxListBox(parentWin, id, 
                                     wxd_cpp_utils::to_wx(pos),
                                     wxd_cpp_utils::to_wx(size),
                                     0, nullptr, style);
    return (wxd_ListBox_t*)listbox;
}

WXD_EXPORTED void wxd_ListBox_Append(wxd_ListBox_t* listbox, const char* item) {
    wxListBox* lb = (wxListBox*)listbox;
    if (lb && item) {
        lb->Append(wxString::FromUTF8(item));
    }
}

WXD_EXPORTED void wxd_ListBox_Clear(wxd_ListBox_t* listbox) {
    wxListBox* lb = (wxListBox*)listbox;
    if (lb) {
        lb->Clear();
    }
}

WXD_EXPORTED int wxd_ListBox_GetSelection(wxd_ListBox_t* listbox) {
    wxListBox* lb = (wxListBox*)listbox;
    if (!lb) return wxNOT_FOUND;
    return lb->GetSelection();
}

WXD_EXPORTED int wxd_ListBox_GetStringSelection(wxd_ListBox_t* listbox, char* buffer, int buffer_len) {
    wxListBox* lb = (wxListBox*)listbox;
    if (!lb) return 0;

    wxString selection = lb->GetStringSelection();
    size_t needed_len_no_null = wxd_cpp_utils::copy_wxstring_to_buffer(selection, buffer, (size_t)buffer_len);
    return (int)(needed_len_no_null + 1);
}

WXD_EXPORTED void wxd_ListBox_SetSelection(wxd_ListBox_t* listbox, int index, bool select) {
    wxListBox* lb = (wxListBox*)listbox;
    if (lb) {
        lb->SetSelection(index, select);
    }
}

WXD_EXPORTED int wxd_ListBox_GetString(wxd_ListBox_t* listbox, int index, char* buffer, int buffer_len) {
     wxListBox* lb = (wxListBox*)listbox;
    if (!lb) return 0;
    if (index < 0 || (unsigned int)index >= lb->GetCount()) {
        if (buffer && buffer_len > 0) buffer[0] = '\0';
        return 0;
    }

    wxString item = lb->GetString((unsigned int)index);
    size_t needed_len_no_null = wxd_cpp_utils::copy_wxstring_to_buffer(item, buffer, (size_t)buffer_len);
    return (int)(needed_len_no_null + 1);
}

WXD_EXPORTED unsigned int wxd_ListBox_GetCount(wxd_ListBox_t* listbox) {
    wxListBox* lb = (wxListBox*)listbox;
    if (!lb) return 0;
    return lb->GetCount();
}

} // extern "C"