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Modified generic wxTreeCtrl to work under non-Unix platforms simultaneously

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with the native control.


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@7930 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2000-08-04 13:59:45 +00:00
parent b1944ebcd0
commit 484523cf52
23 changed files with 608 additions and 384 deletions
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63
include/wx/msw/treectrl.h
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@@ -22,6 +22,7 @@
#include "wx/textctrl.h"
#include "wx/dynarray.h"
#include "wx/treebase.h"
#ifdef __GNUWIN32__
// Cygwin windows.h defines these identifiers
@@ -58,68 +59,6 @@ enum
#define wxTREE_INSERT_FIRST 0xFFFF0001
#define wxTREE_INSERT_LAST 0xFFFF0002
// ----------------------------------------------------------------------------
// wxTreeItemId identifies an element of the tree. In this implementation, it's
// just a trivial wrapper around Win32 HTREEITEM. It's opaque for the
// application.
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxTreeItemId
{
public:
// ctors
// 0 is invalid value for HTREEITEM
wxTreeItemId() { m_itemId = 0; }
// default copy ctor/assignment operator are ok for us
// accessors
// is this a valid tree item?
bool IsOk() const { return m_itemId != 0; }
// conversion to/from either real (system-dependent) tree item id or
// to "long" which used to be the type for tree item ids in previous
// versions of wxWindows
// for wxTreeCtrl usage only
wxTreeItemId(WXHTREEITEM itemId) { m_itemId = (long)itemId; }
operator WXHTREEITEM() const { return (WXHTREEITEM)m_itemId; }
void operator=(WXHTREEITEM item) { m_itemId = (long) item; }
protected:
long m_itemId;
};
WX_DEFINE_EXPORTED_ARRAY(WXHTREEITEM, wxArrayTreeItemIds);
// ----------------------------------------------------------------------------
// wxTreeItemData is some (arbitrary) user class associated with some item. The
// main advantage of having this class (compared to old untyped interface) is
// that wxTreeItemData's are destroyed automatically by the tree and, as this
// class has virtual dtor, it means that the memory will be automatically
// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
// the size of this class is critical: in any real application, each tree leaf
// will have wxTreeItemData associated with it and number of leaves may be
// quite big.
//
// Because the objects of this class are deleted by the tree, they should
// always be allocated on the heap!
// ----------------------------------------------------------------------------
class WXDLLEXPORT wxTreeItemData : private wxTreeItemId
{
public:
// default ctor/copy ctor/assignment operator are ok
// dtor is virtual and all the items are deleted by the tree control when
// it's deleted, so you normally don't have to care about freeing memory
// allocated in your wxTreeItemData-derived class
virtual ~wxTreeItemData() { }
// accessors: set/get the item associated with this node
void SetId(const wxTreeItemId& id) { m_itemId = id; }
const wxTreeItemId GetId() const { return *this; }
};
// ----------------------------------------------------------------------------
// wxTreeCtrl
// ----------------------------------------------------------------------------