treelistctrl.h

来自「Wxpython Implemented on Windows CE, Sou」· C头文件 代码 · 共 557 行 · 第 1/2 页

    wxTreeItemData *GetItemData(const wxTreeItemId& item) const;

    bool GetItemBold(const wxTreeItemId& item) const;
    wxColour GetItemTextColour(const wxTreeItemId& item) const;
    wxColour GetItemBackgroundColour(const wxTreeItemId& item) const;
    wxFont GetItemFont(const wxTreeItemId& item) const;

    // modifiers
    // ---------

    // set item's label
    void SetItemText(const wxTreeItemId& item, const wxString& text)
    { SetItemText(item, GetMainColumn(), text); }
    void SetItemText(const wxTreeItemId& item, size_t column,
                     const wxString& text);

    // get one of the images associated with the item (normal by default)
    void SetItemImage(const wxTreeItemId& item, int image,
                      wxTreeItemIcon which = wxTreeItemIcon_Normal)
    { SetItemImage(item, GetMainColumn(), image, which); }
    // the which parameter is ignored for all columns but the main one
    void SetItemImage(const wxTreeItemId& item, size_t column, int image,
                      wxTreeItemIcon which = wxTreeItemIcon_Normal);

    // associate some data with the item
    void SetItemData(const wxTreeItemId& item, wxTreeItemData *data);

    // force appearance of [+] button near the item. This is useful to
    // allow the user to expand the items which don't have any children now
    // - but instead add them only when needed, thus minimizing memory
    // usage and loading time.
    void SetItemHasChildren(const wxTreeItemId& item, bool has = TRUE);

    // the item will be shown in bold
    void SetItemBold(const wxTreeItemId& item, bool bold = TRUE);

    // set the item's text colour
    void SetItemTextColour(const wxTreeItemId& item, const wxColour& colour);

    // set the item's background colour
    void SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& colour);

    // set the item's font (should be of the same height for all items)
    void SetItemFont(const wxTreeItemId& item, const wxFont& font);

    // set the window font
    virtual bool SetFont( const wxFont &font );

    // set the styles.
    void SetWindowStyle(const long styles);
    long GetWindowStyle() const;
    long GetWindowStyleFlag() const { return GetWindowStyle(); }

    // item status inquiries
    // ---------------------

    // is the item visible (it might be outside the view or not expanded)?
    bool IsVisible(const wxTreeItemId& item) const;
    // does the item has any children?
    bool HasChildren(const wxTreeItemId& item) const
      { return ItemHasChildren(item); }
    bool ItemHasChildren(const wxTreeItemId& item) const;
    // is the item expanded (only makes sense if HasChildren())?
    bool IsExpanded(const wxTreeItemId& item) const;
    // is this item currently selected (the same as has focus)?
    bool IsSelected(const wxTreeItemId& item) const;
    // is item text in bold font?
    bool IsBold(const wxTreeItemId& item) const;
    // does the layout include space for a button?

    // number of children
    // ------------------

    // if 'recursively' is FALSE, only immediate children count, otherwise
    // the returned number is the number of all items in this branch
    size_t GetChildrenCount(const wxTreeItemId& item, bool recursively = TRUE);

    // navigation
    // ----------

    // wxTreeItemId.IsOk() will return FALSE if there is no such item

    // get the root tree item
    wxTreeItemId GetRootItem() const;

    // get the item currently selected (may return NULL if no selection)
    wxTreeItemId GetSelection() const;

    // get the items currently selected, return the number of such item
    size_t GetSelections(wxArrayTreeItemIds&) const;

    // get the parent of this item (may return NULL if root)
    wxTreeItemId GetItemParent(const wxTreeItemId& item) const;

    // for this enumeration function you must pass in a "cookie" parameter
    // which is opaque for the application but is necessary for the library
    // to make these functions reentrant (i.e. allow more than one
    // enumeration on one and the same object simultaneously). Of course,
    // the "cookie" passed to GetFirstChild() and GetNextChild() should be
    // the same!

    // get the first child of this item
#if !wxCHECK_VERSION(2, 5, 0)
    wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& cookie) const;
#else
    wxTreeItemId GetFirstChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
#endif
    // get the next child
#if !wxCHECK_VERSION(2, 5, 0)
    wxTreeItemId GetNextChild(const wxTreeItemId& item, long& cookie) const;
#else
    wxTreeItemId GetNextChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
#endif
    // get the prev child
#if !wxCHECK_VERSION(2, 5, 0)
    wxTreeItemId GetPrevChild(const wxTreeItemId& item, long& cookie) const;
#else
    wxTreeItemId GetPrevChild(const wxTreeItemId& item, wxTreeItemIdValue& cookie) const;
#endif
    // get the last child of this item - this method doesn't use cookies
    wxTreeItemId GetLastChild(const wxTreeItemId& item) const;

    // get the next sibling of this item
    wxTreeItemId GetNextSibling(const wxTreeItemId& item) const;
    // get the previous sibling
    wxTreeItemId GetPrevSibling(const wxTreeItemId& item) const;

    // get first visible item
    wxTreeItemId GetFirstVisibleItem() const;
    // get the next visible item: item must be visible itself!
    // see IsVisible() and wxTreeCtrl::GetFirstVisibleItem()
    wxTreeItemId GetNextVisible(const wxTreeItemId& item) const;
    // get the previous visible item: item must be visible itself!
    wxTreeItemId GetPrevVisible(const wxTreeItemId& item) const;

    // Only for internal use right now, but should probably be public
    wxTreeItemId GetNext(const wxTreeItemId& item) const;

    // operations
    // ----------

    // add the root node to the tree
    wxTreeItemId AddRoot(const wxString& text,
                         int image = -1, int selectedImage = -1,
                         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);
    void SelectAll(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)
    { int col; return HitTest(point, flags, col); }
    wxTreeItemId HitTest(const wxPoint& point, int& flags, int& column);

    // 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 );

    // 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);

    // searching
    wxTreeItemId FindItem (const wxTreeItemId& item, const wxString& str, int flags = 0);

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


    wxTreeListHeaderWindow* GetHeaderWindow() const
    { return m_header_win; }

    wxTreeListMainWindow* GetMainWindow() const
    { return m_main_win; }

    virtual wxSize DoGetBestSize() const;
    
protected:
    // header window, responsible for column visualization and manipulation
    wxTreeListHeaderWindow* m_header_win;
    // main window, the "true" tree ctrl
    wxTreeListMainWindow*   m_main_win;

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

    void OnGetToolTip( wxTreeEvent &event );
    void OnSize(wxSizeEvent& event);
    void CalculateAndSetHeaderHeight();
    void DoHeaderLayout();

private:
    size_t fill_column;
    size_t m_headerHeight;

    DECLARE_EVENT_TABLE()
    DECLARE_DYNAMIC_CLASS(wxTreeListCtrl)
};

#endif // TREELISTCTRL_H