Files
wxWidgets/src/common/treebase.cpp
Vadim Zeitlin b24069f2cc cache best size in DoGetBestSize()
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39080 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
2006-05-06 20:12:28 +00:00

131 lines
4.2 KiB
C++

/////////////////////////////////////////////////////////////////////////////
// Name: treebase.cpp
// Purpose: Base wxTreeCtrl classes
// Author: Julian Smart
// Created: 01/02/97
// Modified:
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling, Julian Smart et al
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
// =============================================================================
// declarations
// =============================================================================
// -----------------------------------------------------------------------------
// headers
// -----------------------------------------------------------------------------
// For compilers that support precompilation, includes "wx.h".
#include "wx/wxprec.h"
#ifdef __BORLANDC__
#pragma hdrstop
#endif
#if wxUSE_TREECTRL
#include "wx/treectrl.h"
#include "wx/imaglist.h"
// ----------------------------------------------------------------------------
// events
// ----------------------------------------------------------------------------
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_DRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_RDRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_LABEL_EDIT)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_DELETE_ITEM)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_GET_INFO)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SET_INFO)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGING)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_KEY_DOWN)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_ACTIVATED)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_DRAG)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP)
DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MENU)
// ----------------------------------------------------------------------------
// Tree event
// ----------------------------------------------------------------------------
IMPLEMENT_DYNAMIC_CLASS(wxTreeEvent, wxNotifyEvent)
wxTreeEvent::wxTreeEvent(wxEventType commandType, int id)
: wxNotifyEvent(commandType, id)
{
m_itemOld = 0l;
m_editCancelled = false;
}
wxTreeEvent::wxTreeEvent(const wxTreeEvent & event)
: wxNotifyEvent(event)
{
m_evtKey = event.m_evtKey;
m_item = event.m_item;
m_itemOld = event.m_itemOld;
m_pointDrag = event.m_pointDrag;
m_label = event.m_label;
m_editCancelled = event.m_editCancelled;
}
// ----------------------------------------------------------------------------
// wxTreeCtrlBase
// ----------------------------------------------------------------------------
wxTreeCtrlBase::~wxTreeCtrlBase()
{
if (m_ownsImageListNormal)
delete m_imageListNormal;
if (m_ownsImageListState)
delete m_imageListState;
}
wxSize wxTreeCtrlBase::DoGetBestSize() const
{
wxSize size;
// this doesn't really compute the total bounding rectangle of all items
// but a not too bad guess of it which has the advantage of not having to
// examine all (potentially hundreds or thousands) items in the control
for ( wxTreeItemId item = GetRootItem();
item.IsOk();
item = GetLastChild(item) )
{
wxRect rect;
// last parameter is "true" to get only the dimensions of the text
// label, we don't want to get the entire item width as it's determined
// by the current size
if ( GetBoundingRect(item, rect, true) )
{
if ( size.x < rect.x + rect.width )
size.x = rect.x + rect.width;
if ( size.y < rect.y + rect.height )
size.y = rect.y + rect.height;
}
}
// need some minimal size even for empty tree
if ( !size.x || !size.y )
size = wxControl::DoGetBestSize();
else
CacheBestSize(size);
return size;
}
#endif // wxUSE_TREECTRL