pcsx2/3rdparty/wxwidgets3.0/include/wx/generic/ctrlsub.h

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///////////////////////////////////////////////////////////////////////////////
// Name: wx/generic/ctrlsub.h
// Purpose: common functionality of wxItemContainer-derived controls
// Author: Vadim Zeitlin
// Created: 2007-07-25
// Copyright: (c) 2007 Vadim Zeitlin <vadim@wxwindows.org>
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifndef _WX_GENERIC_CTRLSUB_H_
#define _WX_GENERIC_CTRLSUB_H_
#include "wx/dynarray.h"
// ----------------------------------------------------------------------------
// wxControlWithItemsGeneric: generic implementation of item client data
// ----------------------------------------------------------------------------
class wxControlWithItemsGeneric : public wxControlWithItemsBase
{
public:
wxControlWithItemsGeneric() { }
virtual void DoInitItemClientData()
{
m_itemsClientData.resize(GetCount(), NULL);
}
virtual void DoSetItemClientData(unsigned int n, void *clientData)
{
m_itemsClientData[n] = clientData;
}
virtual void *DoGetItemClientData(unsigned int n) const
{
return m_itemsClientData[n];
}
virtual void DoClear() { m_itemsClientData.clear(); }
virtual void DoDeleteOneItem(unsigned int pos)
{
if ( HasClientData() )
m_itemsClientData.RemoveAt(pos);
}
protected:
// preallocate memory for numItems new items: this should be called from
// the derived classes DoInsertItems() to speed up appending big numbers of
// items with client data; it is safe to call even if we don't use client
// data at all and does nothing in this case
void AllocClientData(unsigned int numItems)
{
if ( HasClientData() )
m_itemsClientData.reserve(m_itemsClientData.size() + numItems);
}
// this must be called by derived classes when a new item is added to the
// control to add storage for the corresponding client data pointer (before
// inserting many items, call AllocClientData())
void InsertNewItemClientData(unsigned int pos,
void **clientData,
unsigned int n,
wxClientDataType type)
{
if ( InitClientDataIfNeeded(type) )
m_itemsClientData.Insert(clientData[n], pos);
}
// the same as InsertNewItemClientData() but for numItems consecutive items
// (this can only be used if the control doesn't support sorting as
// otherwise the items positions wouldn't be consecutive any more)
void InsertNewItemsClientData(unsigned int pos,
unsigned int numItems,
void **clientData,
wxClientDataType type)
{
if ( InitClientDataIfNeeded(type) )
{
// it's more efficient to insert everything at once and then update
// for big number of items to avoid moving the array contents
// around (which would result in O(N^2) algorithm)
m_itemsClientData.Insert(NULL, pos, numItems);
for ( unsigned int n = 0; n < numItems; ++n, ++pos )
m_itemsClientData[pos] = clientData[n];
}
}
// vector containing the client data pointers: it is either empty (if
// client data is not used) or has the same number of elements as the
// control
wxArrayPtrVoid m_itemsClientData;
private:
// initialize client data if needed, return false if we don't have any
// client data and true otherwise
bool InitClientDataIfNeeded(wxClientDataType type)
{
if ( !HasClientData() )
{
if ( type == wxClientData_None )
{
// we didn't have the client data before and are not asked to
// store it now neither
return false;
}
// this is the first time client data is used with this control
DoInitItemClientData();
SetClientDataType(type);
}
//else: we already have client data
return true;
}
wxDECLARE_NO_COPY_CLASS(wxControlWithItemsGeneric);
};
#endif // _WX_GENERIC_CTRLSUB_H_