9fce43b779
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31647 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
548 lines
22 KiB
C++
548 lines
22 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/treectlg.h
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// Purpose: wxTreeCtrl class
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// Author: Robert Roebling
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// Modified by:
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// Created: 01/02/97
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// RCS-ID: $Id$
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// Copyright: (c) 1997,1998 Robert Roebling
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef _GENERIC_TREECTRL_H_
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#define _GENERIC_TREECTRL_H_
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#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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#pragma interface "treectlg.h"
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#endif
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#if wxUSE_TREECTRL
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#include "wx/scrolwin.h"
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#include "wx/pen.h"
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#include "wx/imaglist.h"
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// -----------------------------------------------------------------------------
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// forward declaration
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// -----------------------------------------------------------------------------
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class WXDLLEXPORT wxGenericTreeItem;
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class WXDLLEXPORT wxTreeItemData;
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class WXDLLEXPORT wxTreeRenameTimer;
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class WXDLLEXPORT wxTreeFindTimer;
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class WXDLLEXPORT wxTreeTextCtrl;
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class WXDLLEXPORT wxTextCtrl;
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// -----------------------------------------------------------------------------
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// wxGenericTreeCtrl - the tree control
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// -----------------------------------------------------------------------------
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class WXDLLEXPORT wxGenericTreeCtrl : public wxScrolledWindow
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{
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public:
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// creation
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// --------
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wxGenericTreeCtrl() { Init(); }
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wxGenericTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxTR_DEFAULT_STYLE,
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const wxValidator &validator = wxDefaultValidator,
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const wxString& name = wxTreeCtrlNameStr)
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{
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Init();
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Create(parent, id, pos, size, style, validator, name);
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}
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virtual ~wxGenericTreeCtrl();
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bool Create(wxWindow *parent, wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxTR_DEFAULT_STYLE,
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const wxValidator &validator = wxDefaultValidator,
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const wxString& name = wxTreeCtrlNameStr);
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// accessors
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// ---------
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// get the total number of items in the control
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size_t GetCount() const;
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// indent is the number of pixels the children are indented relative to
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// the parents position. SetIndent() also redraws the control
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// immediately.
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unsigned int GetIndent() const { return m_indent; }
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void SetIndent(unsigned int indent);
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// spacing is the number of pixels between the start and the Text
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unsigned int GetSpacing() const { return m_spacing; }
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void SetSpacing(unsigned int spacing);
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// image list: these functions allow to associate an image list with
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// the control and retrieve it. Note that when assigned with
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// SetImageList, the control does _not_ delete
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// the associated image list when it's deleted in order to allow image
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// lists to be shared between different controls. If you use
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// AssignImageList, the control _does_ delete the image list.
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//
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// The normal image list is for the icons which correspond to the
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// normal tree item state (whether it is selected or not).
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// Additionally, the application might choose to show a state icon
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// which corresponds to an app-defined item state (for example,
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// checked/unchecked) which are taken from the state image list.
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virtual wxImageList *GetImageList() const;
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virtual wxImageList *GetStateImageList() const;
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virtual wxImageList *GetButtonsImageList() const;
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virtual void SetImageList(wxImageList *imageList);
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virtual void SetStateImageList(wxImageList *imageList);
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virtual void SetButtonsImageList(wxImageList *imageList);
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virtual void AssignImageList(wxImageList *imageList);
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virtual void AssignStateImageList(wxImageList *imageList);
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virtual void AssignButtonsImageList(wxImageList *imageList);
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virtual void SetDropEffectAboveItem( bool above = false ) { m_dropEffectAboveItem = above; }
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virtual bool GetDropEffectAboveItem() const { return m_dropEffectAboveItem; }
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// Functions to work with tree ctrl items.
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// accessors
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// ---------
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// retrieve item's label
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wxString GetItemText(const wxTreeItemId& item) const;
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// get one of the images associated with the item (normal by default)
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virtual int GetItemImage(const wxTreeItemId& item,
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wxTreeItemIcon which = wxTreeItemIcon_Normal) const;
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// get the data associated with the item
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wxTreeItemData *GetItemData(const wxTreeItemId& item) const;
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// get the item's text colour
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wxColour GetItemTextColour(const wxTreeItemId& item) const;
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// get the item's background colour
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wxColour GetItemBackgroundColour(const wxTreeItemId& item) const;
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// get the item's font
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wxFont GetItemFont(const wxTreeItemId& item) const;
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// modifiers
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// ---------
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// set item's label
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void SetItemText(const wxTreeItemId& item, const wxString& text);
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// get one of the images associated with the item (normal by default)
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virtual void SetItemImage(const wxTreeItemId& item, int image,
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wxTreeItemIcon which = wxTreeItemIcon_Normal);
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// associate some data with the item
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void SetItemData(const wxTreeItemId& item, wxTreeItemData *data);
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// force appearance of [+] button near the item. This is useful to
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// allow the user to expand the items which don't have any children now
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// - but instead add them only when needed, thus minimizing memory
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// usage and loading time.
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void SetItemHasChildren(const wxTreeItemId& item, bool has = true);
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// the item will be shown in bold
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void SetItemBold(const wxTreeItemId& item, bool bold = true);
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// the item will be shown with a drop highlight
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void SetItemDropHighlight(const wxTreeItemId& item, bool highlight = true);
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// set the item's text colour
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void SetItemTextColour(const wxTreeItemId& item, const wxColour& col);
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// set the item's background colour
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void SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& col);
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// set the item's font (should be of the same height for all items)
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void SetItemFont(const wxTreeItemId& item, const wxFont& font);
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// set the window font
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virtual bool SetFont( const wxFont &font );
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// set the styles. No need to specify a GetWindowStyle here since
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// the base wxWindow member function will do it for us
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void SetWindowStyle(const long styles);
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// item status inquiries
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// ---------------------
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// is the item visible (it might be outside the view or not expanded)?
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bool IsVisible(const wxTreeItemId& item) const;
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// does the item has any children?
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bool HasChildren(const wxTreeItemId& item) const
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{ return ItemHasChildren(item); }
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bool ItemHasChildren(const wxTreeItemId& item) const;
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// is the item expanded (only makes sense if HasChildren())?
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bool IsExpanded(const wxTreeItemId& item) const;
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// is this item currently selected (the same as has focus)?
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bool IsSelected(const wxTreeItemId& item) const;
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// is item text in bold font?
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bool IsBold(const wxTreeItemId& item) const;
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// does the layout include space for a button?
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// number of children
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// ------------------
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// if 'recursively' is false, only immediate children count, otherwise
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// the returned number is the number of all items in this branch
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size_t GetChildrenCount(const wxTreeItemId& item,
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bool recursively = true) const;
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// navigation
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// ----------
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// wxTreeItemId.IsOk() will return false if there is no such item
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// get the root tree item
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wxTreeItemId GetRootItem() const { return m_anchor; }
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// get the item currently selected (may return NULL if no selection)
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wxTreeItemId GetSelection() const { return m_current; }
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// get the items currently selected, return the number of such item
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size_t GetSelections(wxArrayTreeItemIds&) const;
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// get the parent of this item (may return NULL if root)
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wxTreeItemId GetItemParent(const wxTreeItemId& item) const;
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#if WXWIN_COMPATIBILITY_2_2
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// deprecated: Use GetItemParent instead.
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wxDEPRECATED( wxTreeItemId GetParent(const wxTreeItemId& item) const);
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// Expose the base class method hidden by the one above. Not deprecatable.
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wxWindow *GetParent() const { return wxScrolledWindow::GetParent(); }
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#endif // WXWIN_COMPATIBILITY_2_2
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// for this enumeration function you must pass in a "cookie" parameter
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// which is opaque for the application but is necessary for the library
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// to make these functions reentrant (i.e. allow more than one
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// enumeration on one and the same object simultaneously). Of course,
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// the "cookie" passed to GetFirstChild() and GetNextChild() should be
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// the same!
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// get the first child of this item
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wxTreeItemId GetFirstChild(const wxTreeItemId& item,
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wxTreeItemIdValue& cookie) const;
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// get the next child
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wxTreeItemId GetNextChild(const wxTreeItemId& item,
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wxTreeItemIdValue& cookie) const;
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// get the last child of this item - this method doesn't use cookies
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wxTreeItemId GetLastChild(const wxTreeItemId& item) const;
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// get the next sibling of this item
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wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
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// get the previous sibling
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wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;
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// get first visible item
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wxTreeItemId GetFirstVisibleItem() const;
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// get the next visible item: item must be visible itself!
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// see IsVisible() and wxTreeCtrl::GetFirstVisibleItem()
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wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
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// get the previous visible item: item must be visible itself!
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wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;
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// Only for internal use right now, but should probably be public
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wxTreeItemId GetNext(const wxTreeItemId& item) const;
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// operations
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// ----------
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// add the root node to the tree
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virtual wxTreeItemId AddRoot(const wxString& text,
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int image = -1, int selectedImage = -1,
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wxTreeItemData *data = NULL);
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// insert a new item in as the first child of the parent
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virtual wxTreeItemId PrependItem(const wxTreeItemId& parent,
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const wxString& text,
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int image = -1, int selectedImage = -1,
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wxTreeItemData *data = NULL);
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// insert a new item after a given one
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virtual wxTreeItemId InsertItem(const wxTreeItemId& parent,
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const wxTreeItemId& idPrevious,
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const wxString& text,
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int image = -1, int selectedImage = -1,
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wxTreeItemData *data = NULL);
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// insert a new item before the one with the given index
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virtual wxTreeItemId InsertItem(const wxTreeItemId& parent,
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size_t index,
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const wxString& text,
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int image = -1, int selectedImage = -1,
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wxTreeItemData *data = NULL);
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// insert a new item in as the last child of the parent
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virtual wxTreeItemId AppendItem(const wxTreeItemId& parent,
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const wxString& text,
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int image = -1, int selectedImage = -1,
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wxTreeItemData *data = NULL);
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// delete this item and associated data if any
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void Delete(const wxTreeItemId& item);
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// delete all children (but don't delete the item itself)
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// NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
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void DeleteChildren(const wxTreeItemId& item);
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// delete all items from the tree
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// NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
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void DeleteAllItems();
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// expand this item
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void Expand(const wxTreeItemId& item);
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// expand this item and all subitems recursively
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void ExpandAll(const wxTreeItemId& item);
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// collapse the item without removing its children
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void Collapse(const wxTreeItemId& item);
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// collapse the item and remove all children
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void CollapseAndReset(const wxTreeItemId& item);
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// toggles the current state
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void Toggle(const wxTreeItemId& item);
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// remove the selection from currently selected item (if any)
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void Unselect();
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// or from the given one (multiselect mode only)
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void UnselectItem(const wxTreeItemId& item) { SelectItem(item, false); }
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// or from all
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void UnselectAll();
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// select this item
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void SelectItem(const wxTreeItemId& item, bool select = true);
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// toggle the item selection
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void ToggleItemSelection(const wxTreeItemId& item)
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{
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SelectItem(item, !IsSelected(item));
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}
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// make sure this item is visible (expanding the parent item and/or
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// scrolling to this item if necessary)
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void EnsureVisible(const wxTreeItemId& item);
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// scroll to this item (but don't expand its parent)
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void ScrollTo(const wxTreeItemId& item);
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void AdjustMyScrollbars();
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// The first function is more portable (because easier to implement
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// on other platforms), but the second one returns some extra info.
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wxTreeItemId HitTest(const wxPoint& point)
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{ int dummy; return HitTest(point, dummy); }
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wxTreeItemId HitTest(const wxPoint& point, int& flags);
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// get the bounding rectangle of the item (or of its label only)
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bool GetBoundingRect(const wxTreeItemId& item,
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wxRect& rect,
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bool textOnly = false) const;
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// Start editing the item label: this (temporarily) replaces the item
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// with a one line edit control. The item will be selected if it hadn't
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// been before.
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void EditLabel( const wxTreeItemId& item ) { Edit( item ); }
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void Edit( const wxTreeItemId& item );
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// returns a pointer to the text edit control if the item is being
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// edited, NULL otherwise (it's assumed that no more than one item may
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// be edited simultaneously)
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wxTextCtrl* GetEditControl() const;
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// sorting
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// this function is called to compare 2 items and should return -1, 0
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// or +1 if the first item is less than, equal to or greater than the
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// second one. The base class version performs alphabetic comparaison
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// of item labels (GetText)
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virtual int OnCompareItems(const wxTreeItemId& item1,
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const wxTreeItemId& item2);
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// sort the children of this item using OnCompareItems
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//
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// NB: this function is not reentrant and not MT-safe (FIXME)!
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void SortChildren(const wxTreeItemId& item);
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#if WXWIN_COMPATIBILITY_2_4
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// deprecated functions: use Set/GetItemImage directly
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wxDEPRECATED( int GetItemSelectedImage(const wxTreeItemId& item) const );
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wxDEPRECATED( void SetItemSelectedImage(const wxTreeItemId& item, int image) );
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// use the versions taking wxTreeItemIdValue cookies (note that
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// GetNextChild() is not inside wxDEPRECATED on purpose, as otherwise we
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// get twice as many warnings without any added benefit: it is always used
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// with GetFirstChild() anyhow)
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wxDEPRECATED( wxTreeItemId GetFirstChild(const wxTreeItemId& item,
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long& cookie) const );
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wxTreeItemId GetNextChild(const wxTreeItemId& item,
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long& cookie) const;
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#endif // WXWIN_COMPATIBILITY_2_4
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virtual bool ShouldInheritColours() const { return false; }
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// implementation only from now on
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// overridden base class virtuals
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virtual bool SetBackgroundColour(const wxColour& colour);
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virtual bool SetForegroundColour(const wxColour& colour);
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virtual void Freeze();
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virtual void Thaw();
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// callbacks
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void OnPaint( wxPaintEvent &event );
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void OnSetFocus( wxFocusEvent &event );
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void OnKillFocus( wxFocusEvent &event );
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void OnChar( wxKeyEvent &event );
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void OnMouse( wxMouseEvent &event );
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void OnGetToolTip( wxTreeEvent &event );
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void OnInternalIdle( );
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virtual wxSize DoGetBestSize() const;
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virtual wxVisualAttributes GetDefaultAttributes() const
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{
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return GetClassDefaultAttributes(GetWindowVariant());
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}
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static wxVisualAttributes
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GetClassDefaultAttributes(wxWindowVariant variant = wxWINDOW_VARIANT_NORMAL);
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// implementation helpers
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protected:
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friend class wxGenericTreeItem;
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friend class wxTreeRenameTimer;
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friend class wxTreeFindTimer;
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friend class wxTreeTextCtrl;
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wxFont m_normalFont;
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wxFont m_boldFont;
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wxGenericTreeItem *m_anchor;
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wxGenericTreeItem *m_current,
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*m_key_current,
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// A hint to select a parent item after deleting a child
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*m_select_me;
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unsigned short m_indent;
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unsigned short m_spacing;
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int m_lineHeight;
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wxPen m_dottedPen;
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wxBrush *m_hilightBrush,
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*m_hilightUnfocusedBrush;
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bool m_hasFocus;
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bool m_dirty;
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bool m_ownsImageListNormal,
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m_ownsImageListState,
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m_ownsImageListButtons;
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bool m_isDragging; // true between BEGIN/END drag events
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bool m_lastOnSame; // last click on the same item as prev
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wxImageList *m_imageListNormal,
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*m_imageListState,
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*m_imageListButtons;
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int m_freezeCount;
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int m_dragCount;
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wxPoint m_dragStart;
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wxGenericTreeItem *m_dropTarget;
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wxCursor m_oldCursor; // cursor is changed while dragging
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wxGenericTreeItem *m_oldSelection;
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wxGenericTreeItem *m_underMouse; // for visual effects
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wxTreeTextCtrl *m_textCtrl;
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wxTimer *m_renameTimer;
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// incremental search data
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wxString m_findPrefix;
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wxTimer *m_findTimer;
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bool m_dropEffectAboveItem;
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// the common part of all ctors
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void Init();
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// misc helpers
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void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
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void DrawBorder(const wxTreeItemId& item);
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void DrawLine(const wxTreeItemId& item, bool below);
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void DrawDropEffect(wxGenericTreeItem *item);
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void DoSelectItem(const wxTreeItemId& id,
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bool unselect_others = true,
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bool extended_select = false);
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wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
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size_t previous,
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const wxString& text,
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int image, int selectedImage,
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wxTreeItemData *data);
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// called by wxTextTreeCtrl when it marks itself for deletion
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void ResetTextControl();
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// find the first item starting with the given prefix after the given item
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wxTreeItemId FindItem(const wxTreeItemId& id, const wxString& prefix) const;
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bool HasButtons() const { return HasFlag(wxTR_HAS_BUTTONS); }
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void CalculateLineHeight();
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int GetLineHeight(wxGenericTreeItem *item) const;
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void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y );
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void PaintItem( wxGenericTreeItem *item, wxDC& dc);
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void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y );
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void CalculatePositions();
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void CalculateSize( wxGenericTreeItem *item, wxDC &dc );
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void RefreshSubtree( wxGenericTreeItem *item );
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void RefreshLine( wxGenericTreeItem *item );
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// redraw all selected items
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void RefreshSelected();
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// RefreshSelected() recursive helper
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void RefreshSelectedUnder(wxGenericTreeItem *item);
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|
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void OnRenameTimer();
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bool OnRenameAccept(wxGenericTreeItem *item, const wxString& value);
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void OnRenameCancelled(wxGenericTreeItem *item);
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|
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void FillArray(wxGenericTreeItem*, wxArrayTreeItemIds&) const;
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void SelectItemRange( wxGenericTreeItem *item1, wxGenericTreeItem *item2 );
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bool TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
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bool TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
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void UnselectAllChildren( wxGenericTreeItem *item );
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void ChildrenClosing(wxGenericTreeItem* item);
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|
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private:
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DECLARE_EVENT_TABLE()
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DECLARE_DYNAMIC_CLASS(wxGenericTreeCtrl)
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|
DECLARE_NO_COPY_CLASS(wxGenericTreeCtrl)
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};
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|
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#if !defined(__WXMSW__) || defined(__WXUNIVERSAL__)
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/*
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|
* wxTreeCtrl has to be a real class or we have problems with
|
|
* the run-time information.
|
|
*/
|
|
|
|
class WXDLLEXPORT wxTreeCtrl: public wxGenericTreeCtrl
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|
{
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|
DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
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|
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|
public:
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|
wxTreeCtrl() {}
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|
|
|
wxTreeCtrl(wxWindow *parent, wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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|
const wxSize& size = wxDefaultSize,
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|
long style = wxTR_DEFAULT_STYLE,
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const wxValidator &validator = wxDefaultValidator,
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|
const wxString& name = wxTreeCtrlNameStr)
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|
: wxGenericTreeCtrl(parent, id, pos, size, style, validator, name)
|
|
{
|
|
}
|
|
};
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|
#endif // !__WXMSW__ || __WXUNIVERSAL__
|
|
|
|
#endif // wxUSE_TREECTRL
|
|
|
|
#endif // _GENERIC_TREECTRL_H_
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|
|