treectlg.h

浙江大学的悟空嵌入式系统模拟器

                         wxTreeItemData *data = NULL);

        // insert a new item in as the first child of the parent
    wxTreeItemId PrependItem(const wxTreeItemId& parent,
                             const wxString& text,
                             int image = -1, int selectedImage = -1,
                             wxTreeItemData *data = NULL);

        // insert a new item after a given one
    wxTreeItemId InsertItem(const wxTreeItemId& parent,
                            const wxTreeItemId& idPrevious,
                            const wxString& text,
                            int image = -1, int selectedImage = -1,
                            wxTreeItemData *data = NULL);

        // insert a new item before the one with the given index
    wxTreeItemId InsertItem(const wxTreeItemId& parent,
                            size_t index,
                            const wxString& text,
                            int image = -1, int selectedImage = -1,
                            wxTreeItemData *data = NULL);

        // insert a new item in as the last child of the parent
    wxTreeItemId AppendItem(const wxTreeItemId& parent,
                            const wxString& text,
                            int image = -1, int selectedImage = -1,
                            wxTreeItemData *data = NULL);

        // delete this item and associated data if any
    void Delete(const wxTreeItemId& item);
        // delete all children (but don't delete the item itself)
        // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
    void DeleteChildren(const wxTreeItemId& item);
        // delete all items from the tree
        // NB: this won't send wxEVT_COMMAND_TREE_ITEM_DELETED events
    void DeleteAllItems();

        // expand this item
    void Expand(const wxTreeItemId& item);
        // expand this item and all subitems recursively
    void ExpandAll(const wxTreeItemId& item);
        // collapse the item without removing its children
    void Collapse(const wxTreeItemId& item);
        // collapse the item and remove all children
    void CollapseAndReset(const wxTreeItemId& item);
        // toggles the current state
    void Toggle(const wxTreeItemId& item);

        // remove the selection from currently selected item (if any)
    void Unselect();
    void UnselectAll();
        // select this item
    void SelectItem(const wxTreeItemId& item, bool unselect_others=TRUE, bool extended_select=FALSE);
        // make sure this item is visible (expanding the parent item and/or
        // scrolling to this item if necessary)
    void EnsureVisible(const wxTreeItemId& item);
        // scroll to this item (but don't expand its parent)
    void ScrollTo(const wxTreeItemId& item);
    void AdjustMyScrollbars();

        // The first function is more portable (because easier to implement
        // on other platforms), but the second one returns some extra info.
    wxTreeItemId HitTest(const wxPoint& point)
        { int dummy; return HitTest(point, dummy); }
    wxTreeItemId HitTest(const wxPoint& point, int& flags);

        // get the bounding rectangle of the item (or of its label only)
    bool GetBoundingRect(const wxTreeItemId& item,
                         wxRect& rect,
                         bool textOnly = FALSE) const;

        // Start editing the item label: this (temporarily) replaces the item
        // with a one line edit control. The item will be selected if it hadn't
        // been before.
    void EditLabel( const wxTreeItemId& item ) { Edit( item ); }
    void Edit( const wxTreeItemId& item );
        // returns a pointer to the text edit control if the item is being
        // edited, NULL otherwise (it's assumed that no more than one item may
        // be edited simultaneously)
    wxTextCtrl* GetEditControl() const;

    // sorting
        // this function is called to compare 2 items and should return -1, 0
        // or +1 if the first item is less than, equal to or greater than the
        // second one. The base class version performs alphabetic comparaison
        // of item labels (GetText)
    virtual int OnCompareItems(const wxTreeItemId& item1,
                               const wxTreeItemId& item2);
        // sort the children of this item using OnCompareItems
        //
        // NB: this function is not reentrant and not MT-safe (FIXME)!
    void SortChildren(const wxTreeItemId& item);

    // deprecated functions: use Set/GetItemImage directly
        // get the selected item image
    int GetItemSelectedImage(const wxTreeItemId& item) const
        { return GetItemImage(item, wxTreeItemIcon_Selected); }
        // set the selected item image
    void SetItemSelectedImage(const wxTreeItemId& item, int image)
        { SetItemImage(item, image, wxTreeItemIcon_Selected); }

    // implementation only from now on

    // overridden base class virtuals
    virtual bool SetBackgroundColour(const wxColour& colour);
    virtual bool SetForegroundColour(const wxColour& colour);

    // callbacks
    void OnPaint( wxPaintEvent &event );
    void OnSetFocus( wxFocusEvent &event );
    void OnKillFocus( wxFocusEvent &event );
    void OnChar( wxKeyEvent &event );
    void OnMouse( wxMouseEvent &event );
    void OnIdle( wxIdleEvent &event );

    // implementation helpers
protected:
    friend class wxGenericTreeItem;
    friend class wxTreeRenameTimer;
    friend class wxTreeFindTimer;
    friend class wxTreeTextCtrl;

    wxFont               m_normalFont;
    wxFont               m_boldFont;

    wxGenericTreeItem   *m_anchor;
    wxGenericTreeItem   *m_current,
                        *m_key_current;
    unsigned short       m_indent;
    unsigned short       m_spacing;
    int                  m_lineHeight;
    wxPen                m_dottedPen;
    wxBrush             *m_hilightBrush,
                        *m_hilightUnfocusedBrush;
    bool                 m_hasFocus;
    bool                 m_dirty;
    bool                 m_ownsImageListNormal,
                         m_ownsImageListState,
                         m_ownsImageListButtons;
    bool                 m_isDragging; // true between BEGIN/END drag events
    bool                 m_lastOnSame;  // last click on the same item as prev
    wxImageList         *m_imageListNormal,
                        *m_imageListState,
                        *m_imageListButtons;

    int                  m_dragCount;
    wxPoint              m_dragStart;
    wxGenericTreeItem   *m_dropTarget;
    wxCursor             m_oldCursor;  // cursor is changed while dragging
    wxGenericTreeItem   *m_oldSelection;
    wxTreeTextCtrl      *m_textCtrl;

    wxTimer             *m_renameTimer;

    wxBitmap            *m_arrowRight,
                        *m_arrowDown;

    // incremental search data
    wxString             m_findPrefix;
    wxTimer             *m_findTimer;

    // the common part of all ctors
    void Init();

    // misc helpers
    void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);

    void DrawBorder(const wxTreeItemId& item);
    void DrawLine(const wxTreeItemId& item, bool below);
    void DrawDropEffect(wxGenericTreeItem *item);

    wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
                              size_t previous,
                              const wxString& text,
                              int image, int selectedImage,
                              wxTreeItemData *data);

    // called by wxTextTreeCtrl when it marks itself for deletion
    void ResetTextControl();

    // find the first item starting with the given prefix after the given item
    wxTreeItemId FindItem(const wxTreeItemId& id, const wxString& prefix) const;

    bool HasButtons(void) const
        { return (m_imageListButtons != NULL)
              || HasFlag(wxTR_TWIST_BUTTONS|wxTR_HAS_BUTTONS); }

    void CalculateLineHeight();
    int  GetLineHeight(wxGenericTreeItem *item) const;
    void PaintLevel( wxGenericTreeItem *item, wxDC& dc, int level, int &y );
    void PaintItem( wxGenericTreeItem *item, wxDC& dc);

    void CalculateLevel( wxGenericTreeItem *item, wxDC &dc, int level, int &y );
    void CalculatePositions();
    void CalculateSize( wxGenericTreeItem *item, wxDC &dc );

    void RefreshSubtree( wxGenericTreeItem *item );
    void RefreshLine( wxGenericTreeItem *item );

    // redraw all selected items
    void RefreshSelected();

    // RefreshSelected() recursive helper
    void RefreshSelectedUnder(wxGenericTreeItem *item);

    void OnRenameTimer();
    bool OnRenameAccept(wxGenericTreeItem *item, const wxString& value);
    void OnRenameCancelled(wxGenericTreeItem *item);

    void FillArray(wxGenericTreeItem*, wxArrayTreeItemIds&) const;
    void SelectItemRange( wxGenericTreeItem *item1, wxGenericTreeItem *item2 );
    bool TagAllChildrenUntilLast(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
    bool TagNextChildren(wxGenericTreeItem *crt_item, wxGenericTreeItem *last_item, bool select);
    void UnselectAllChildren( wxGenericTreeItem *item );

private:
    DECLARE_EVENT_TABLE()
    DECLARE_DYNAMIC_CLASS(wxGenericTreeCtrl)
};

#if !defined(__WXMSW__) || defined(__WIN16__) || defined(__WXUNIVERSAL__)
/*
 * wxTreeCtrl has to be a real class or we have problems with
 * the run-time information.
 */

class WXDLLEXPORT wxTreeCtrl: public wxGenericTreeCtrl
{
    DECLARE_DYNAMIC_CLASS(wxTreeCtrl)

public:
    wxTreeCtrl() {}

    wxTreeCtrl(wxWindow *parent, wxWindowID id = -1,
               const wxPoint& pos = wxDefaultPosition,
               const wxSize& size = wxDefaultSize,
               long style = wxTR_DEFAULT_STYLE,
               const wxValidator &validator = wxDefaultValidator,
               const wxString& name = wxTreeCtrlNameStr)
    : wxGenericTreeCtrl(parent, id, pos, size, style, validator, name)
    {
    }
};
#endif // !__WXMSW__ || __WIN16__ || __WXUNIVERSAL__

#endif // wxUSE_TREECTRL

#endif // _GENERIC_TREECTRL_H_