nestopia/source/win32/NstCtrlListBox.cpp

143 lines
3.5 KiB
C++

////////////////////////////////////////////////////////////////////////////////////////
//
// Nestopia - NES/Famicom emulator written in C++
//
// Copyright (C) 2003-2008 Martin Freij
//
// This file is part of Nestopia.
//
// Nestopia is free software; you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 2 of the License, or
// (at your option) any later version.
//
// Nestopia 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Nestopia; if not, write to the Free Software
// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
//
////////////////////////////////////////////////////////////////////////////////////////
#include "NstWindowCustom.hpp"
#include "NstCtrlListBox.hpp"
#include <WindowsX.h>
namespace Nestopia
{
namespace Window
{
namespace Control
{
NST_COMPILE_ASSERT( LB_ERR < 0 && LB_ERRSPACE < 0 );
ListBox::Item::DataProxy::operator ULONG_PTR () const
{
return ListBox_GetItemData( item.control, item.index );
}
void ListBox::Item::DataProxy::operator = (const ULONG_PTR data) const
{
ListBox_SetItemData( item.control, item.index, data );
}
void ListBox::Item::TextProxy::operator << (wcstring const string) const
{
NST_ASSERT( string );
const int selection = ListBox_GetCurSel( item.control );
ListBox_DeleteString( item.control, item.index );
ListBox_InsertString( item.control, item.index, string );
if (selection != LB_ERR)
ListBox_SetCurSel( item.control, selection );
}
void ListBox::Item::Select() const
{
ListBox_SetCurSel( control, index );
}
void ListBox::Item::Remove() const
{
ListBox_DeleteString( control, index );
}
ListBox::Item ListBox::Selection() const
{
return Item( control, ListBox_GetCurSel( control ) );
}
bool ListBox::AnySelection() const
{
return ListBox_GetCurSel( control ) != LB_ERR;
}
ListBox::Item ListBox::Add(wcstring const text) const
{
NST_ASSERT( text );
return Item( control, ListBox_AddString( control, text ) );
}
ListBox::Item ListBox::Insert(const uint index,wcstring const text) const
{
NST_ASSERT( text );
return Item( control, ListBox_InsertString( control, index, text ) );
}
uint ListBox::Size() const
{
const int size = ListBox_GetCount( control );
return NST_MAX(size,0);
}
void ListBox::Reserve(const uint capacity) const
{
if (capacity < Size())
control.Send( LB_INITSTORAGE, capacity, 0 );
}
void ListBox::Clear() const
{
ListBox_ResetContent( control );
}
ListBox::HScrollBar::HScrollBar(HWND h)
: width(0), hWnd(h), hDC(h ? ::GetDC(h) : NULL)
{
NST_VERIFY( hWnd );
}
void ListBox::HScrollBar::Update(wcstring string,uint length)
{
NST_ASSERT( string || !length );
SIZE size;
if (hDC && ::GetTextExtentPoint32( hDC, string, length, &size ) && width < size.cx)
width = size.cx;
}
ListBox::HScrollBar::~HScrollBar()
{
if (hDC)
{
::ReleaseDC( hWnd, hDC );
if (width)
{
RECT rect;
::GetClientRect( hWnd, &rect );
if (width > rect.right)
ListBox_SetHorizontalExtent( hWnd, width );
}
}
}
}
}
}