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///////////////////////////////////////////////////////////////////////////// |
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// Name: treebase.cpp |
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// Purpose: Base wxTreeCtrl classes |
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// Author: Julian Smart |
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// Created: 01/02/97 |
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// Modified: |
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// Id: $Id: treebase.cpp 51356 2008-01-24 11:23:30Z VZ $ |
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// Copyright: (c) 1998 Robert Roebling, Julian Smart et al |
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// Licence: wxWindows licence |
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///////////////////////////////////////////////////////////////////////////// |
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|
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// ============================================================================= |
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// declarations |
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// ============================================================================= |
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|
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// ----------------------------------------------------------------------------- |
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// headers |
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// ----------------------------------------------------------------------------- |
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|
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// For compilers that support precompilation, includes "wx.h". |
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#include "wx/wxprec.h" |
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|
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#ifdef __BORLANDC__ |
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#pragma hdrstop |
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#endif |
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|
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#if wxUSE_TREECTRL |
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|
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#include "wx/treectrl.h" |
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#include "wx/imaglist.h" |
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|
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// ---------------------------------------------------------------------------- |
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// events |
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// ---------------------------------------------------------------------------- |
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|
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_DRAG) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_RDRAG) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_LABEL_EDIT) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_DELETE_ITEM) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_GET_INFO) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SET_INFO) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDED) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDING) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSED) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSING) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGED) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGING) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_KEY_DOWN) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_ACTIVATED) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_DRAG) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_STATE_IMAGE_CLICK) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_GETTOOLTIP) |
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DEFINE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MENU) |
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|
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// ---------------------------------------------------------------------------- |
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// Tree event |
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// ---------------------------------------------------------------------------- |
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|
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IMPLEMENT_ABSTRACT_CLASS(wxTreeEvent, wxNotifyEvent) |
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|
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|
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wxTreeEvent::wxTreeEvent(wxEventType commandType, |
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wxTreeCtrlBase *tree, |
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const wxTreeItemId& item) |
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: wxNotifyEvent(commandType, tree->GetId()), |
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m_item(item) |
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{ |
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m_editCancelled = false; |
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|
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SetEventObject(tree); |
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|
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if ( item.IsOk() ) |
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SetClientObject(tree->GetItemData(item)); |
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} |
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|
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wxTreeEvent::wxTreeEvent(wxEventType commandType, int id) |
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: wxNotifyEvent(commandType, id) |
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{ |
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m_itemOld = 0l; |
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m_editCancelled = false; |
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} |
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|
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wxTreeEvent::wxTreeEvent(const wxTreeEvent & event) |
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: wxNotifyEvent(event) |
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{ |
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m_evtKey = event.m_evtKey; |
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m_item = event.m_item; |
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m_itemOld = event.m_itemOld; |
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m_pointDrag = event.m_pointDrag; |
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m_label = event.m_label; |
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m_editCancelled = event.m_editCancelled; |
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} |
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|
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// ---------------------------------------------------------------------------- |
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// wxTreeCtrlBase |
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// ---------------------------------------------------------------------------- |
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|
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wxTreeCtrlBase::~wxTreeCtrlBase() |
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{ |
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if (m_ownsImageListNormal) |
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delete m_imageListNormal; |
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if (m_ownsImageListState) |
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delete m_imageListState; |
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} |
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|
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static void |
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wxGetBestTreeSize(const wxTreeCtrlBase* treeCtrl, wxTreeItemId id, wxSize& size) |
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{ |
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wxRect rect; |
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|
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if ( treeCtrl->GetBoundingRect(id, rect, true /* just the item */) ) |
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{ |
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// Translate to logical position so we get the full extent |
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#if defined(__WXMSW__) && !defined(__WXUNIVERSAL__) |
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rect.x += treeCtrl->GetScrollPos(wxHORIZONTAL); |
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rect.y += treeCtrl->GetScrollPos(wxVERTICAL); |
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#endif |
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|
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size.IncTo(wxSize(rect.GetRight(), rect.GetBottom())); |
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} |
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|
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wxTreeItemIdValue cookie; |
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for ( wxTreeItemId item = treeCtrl->GetFirstChild(id, cookie); |
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item.IsOk(); |
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item = treeCtrl->GetNextChild(id, cookie) ) |
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{ |
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wxGetBestTreeSize(treeCtrl, item, size); |
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} |
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} |
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|
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wxSize wxTreeCtrlBase::DoGetBestSize() const |
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{ |
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wxSize size; |
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|
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// this doesn't really compute the total bounding rectangle of all items |
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// but a not too bad guess of it which has the advantage of not having to |
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// examine all (potentially hundreds or thousands) items in the control |
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|
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if (GetQuickBestSize()) |
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{ |
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for ( wxTreeItemId item = GetRootItem(); |
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item.IsOk(); |
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item = GetLastChild(item) ) |
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{ |
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wxRect rect; |
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|
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// last parameter is "true" to get only the dimensions of the text |
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// label, we don't want to get the entire item width as it's determined |
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// by the current size |
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if ( GetBoundingRect(item, rect, true) ) |
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{ |
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if ( size.x < rect.x + rect.width ) |
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size.x = rect.x + rect.width; |
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if ( size.y < rect.y + rect.height ) |
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size.y = rect.y + rect.height; |
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} |
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} |
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} |
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else // use precise, if potentially slow, size computation method |
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{ |
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// iterate over all items recursively |
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wxTreeItemId idRoot = GetRootItem(); |
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if ( idRoot.IsOk() ) |
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wxGetBestTreeSize(this, idRoot, size); |
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} |
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|
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// need some minimal size even for empty tree |
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if ( !size.x || !size.y ) |
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size = wxControl::DoGetBestSize(); |
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else |
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{ |
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// Add border size |
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size += GetWindowBorderSize(); |
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|
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CacheBestSize(size); |
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} |
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|
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return size; |
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} |
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|
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void wxTreeCtrlBase::ExpandAll() |
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{ |
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if ( IsEmpty() ) |
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return; |
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|
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ExpandAllChildren(GetRootItem()); |
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} |
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|
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void wxTreeCtrlBase::ExpandAllChildren(const wxTreeItemId& item) |
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{ |
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// expand this item first, this might result in its children being added on |
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// the fly |
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if ( item != GetRootItem() || !HasFlag(wxTR_HIDE_ROOT) ) |
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Expand(item); |
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//else: expanding hidden root item is unsupported and unnecessary |
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|
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// then (recursively) expand all the children |
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wxTreeItemIdValue cookie; |
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for ( wxTreeItemId idCurr = GetFirstChild(item, cookie); |
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idCurr.IsOk(); |
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idCurr = GetNextChild(item, cookie) ) |
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{ |
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ExpandAllChildren(idCurr); |
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} |
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} |
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|
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void wxTreeCtrlBase::CollapseAll() |
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{ |
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if ( IsEmpty() ) |
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return; |
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|
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CollapseAllChildren(GetRootItem()); |
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} |
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|
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void wxTreeCtrlBase::CollapseAllChildren(const wxTreeItemId& item) |
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{ |
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// first (recursively) collapse all the children |
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wxTreeItemIdValue cookie; |
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for ( wxTreeItemId idCurr = GetFirstChild(item, cookie); |
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idCurr.IsOk(); |
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idCurr = GetNextChild(item, cookie) ) |
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{ |
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CollapseAllChildren(idCurr); |
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} |
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|
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// then collapse this element too |
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Collapse(item); |
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} |
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|
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bool wxTreeCtrlBase::IsEmpty() const |
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{ |
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return !GetRootItem().IsOk(); |
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} |
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|
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#endif // wxUSE_TREECTRL |
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