+// ----------------------------------------------------------------------------
+// wxTreeCtrl
+// ----------------------------------------------------------------------------
+class WXDLLEXPORT wxTreeCtrl : public wxControl
+{
+public:
+ // creation
+ // --------
+ wxTreeCtrl() { Init(); }
+
+ wxTreeCtrl(wxWindow *parent, wxWindowID id = -1,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
+ const wxValidator& validator = wxDefaultValidator,
+ const wxString& name = "wxTreeCtrl")
+ {
+ Create(parent, id, pos, size, style, validator, name);
+ }
+
+ virtual ~wxTreeCtrl();
+
+ bool Create(wxWindow *parent, wxWindowID id = -1,
+ const wxPoint& pos = wxDefaultPosition,
+ const wxSize& size = wxDefaultSize,
+ long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
+ const wxValidator& validator = wxDefaultValidator,
+ const wxString& name = "wxTreeCtrl");
+
+ // accessors
+ // ---------
+
+ // get the total number of items in the control
+ size_t GetCount() const;
+
+ // indent is the number of pixels the children are indented relative to
+ // the parents position. SetIndent() also redraws the control
+ // immediately.
+ unsigned int GetIndent() const;
+ void SetIndent(unsigned int indent);
+
+ // spacing is the number of pixels between the start and the Text
+ // not implemented under wxMSW
+ unsigned int GetSpacing() const { return 18; } // return wxGTK default
+ void SetSpacing(unsigned int WXUNUSED(spacing)) { }
+
+ // image list: these functions allow to associate an image list with
+ // the control and retrieve it. Note that the control does _not_ delete
+ // the associated image list when it's deleted in order to allow image
+ // lists to be shared between different controls.
+ //
+ // The normal image list is for the icons which correspond to the
+ // normal tree item state (whether it is selected or not).
+ // Additionally, the application might choose to show a state icon
+ // which corresponds to an app-defined item state (for example,
+ // checked/unchecked) which are taken from the state image list.
+ wxImageList *GetImageList() const;
+ wxImageList *GetStateImageList() const;
+
+ void SetImageList(wxImageList *imageList);
+ void SetStateImageList(wxImageList *imageList);
+
+ // Functions to work with tree ctrl items. Unfortunately, they can _not_ be
+ // member functions of wxTreeItem because they must know the tree the item
+ // belongs to for Windows implementation and storing the pointer to
+ // wxTreeCtrl in each wxTreeItem is just too much waste.
+
+ // accessors
+ // ---------
+
+ // retrieve items label
+ wxString GetItemText(const wxTreeItemId& item) const;
+ // get one of the images associated with the item (normal by default)
+ int GetItemImage(const wxTreeItemId& item,
+ wxTreeItemIcon which = wxTreeItemIcon_Normal) const;
+ // get the data associated with the item
+ wxTreeItemData *GetItemData(const wxTreeItemId& item) const;
+
+ // modifiers
+ // ---------
+
+ // set items label
+ void SetItemText(const wxTreeItemId& item, 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);
+ // 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);
+
+ // the item will be shown with a drop highlight
+ void SetItemDropHighlight(const wxTreeItemId& item, bool highlight = TRUE);
+
+ // set the items text colour
+ void SetItemTextColour(const wxTreeItemId& item, const wxColour& col);
+
+ // set the items background colour
+ void SetItemBackgroundColour(const wxTreeItemId& item, const wxColour& col);
+
+ // set the items font (should be of the same height for all items)
+ void SetItemFont(const wxTreeItemId& item, const wxFont& font);
+
+ // 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 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;
+
+ // 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) const;
+
+ // 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
+ //
+ // NB: this operation is expensive and can take a long time for a
+ // control with a lot of items (~ O(number of items)).
+ size_t GetSelections(wxArrayTreeItemIds& selections) const;
+
+ // get the parent of this item (may return NULL if root)
+ wxTreeItemId GetParent(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
+ wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& _cookie) const;
+ // get the next child
+ wxTreeItemId GetNextChild(const wxTreeItemId& item, long& _cookie) const;
+ // 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;
+
+ // 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);
+ // 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();
+ // unselect all items (only makes sense for multiple selection control)
+ void UnselectAll();
+ // select this item
+ void SelectItem(const wxTreeItemId& item);
+ // 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);
+
+ // 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. textCtrlClass parameter allows you to create an edit
+ // control of arbitrary user-defined class deriving from wxTextCtrl.
+ wxTextCtrl* EditLabel(const wxTreeItemId& item,
+ wxClassInfo* textCtrlClass = CLASSINFO(wxTextCtrl));
+ // returns the same pointer as StartEdit() if the item is being edited,
+ // NULL otherwise (it's assumed that no more than one item may be
+ // edited simultaneously)
+ wxTextCtrl* GetEditControl() const;
+ // end editing and accept or discard the changes to item label
+ void EndEditLabel(const wxTreeItemId& item, bool discardChanges = FALSE);
+
+ // 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);
+
+ // helpers
+ // -------
+
+ // determine to which item (if any) belongs the given point (the
+ // coordinates specified are relative to the client area of tree ctrl)
+ // and fill the flags parameter with a bitmask of wxTREE_HITTEST_xxx
+ // constants.
+ //
+ // 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;
+
+ // deprecated
+ // ----------
+
+ // these methods are deprecated and will be removed in future versions of
+ // wxWindows, they're here for compatibility only, don't use them in new
+ // code (the comments indicate why these methods are now useless and how to
+ // replace them)
+
+ // use Expand, Collapse, CollapseAndReset or Toggle
+ void ExpandItem(const wxTreeItemId& item, int action);
+
+ // use AddRoot, PrependItem or AppendItem
+ wxTreeItemId InsertItem(const wxTreeItemId& parent,
+ const wxString& text,
+ int image = -1, int selImage = -1,
+ long insertAfter = wxTREE_INSERT_LAST);
+
+ // use Set/GetImageList and Set/GetStateImageList
+ wxImageList *GetImageList(int) const
+ { return GetImageList(); }
+ void SetImageList(wxImageList *imageList, int)
+ { SetImageList(imageList); }
+
+ // 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
+ // --------------
+ virtual bool MSWCommand(WXUINT param, WXWORD id);
+ virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result);
+
+ // override some base class virtuals
+ virtual bool SetBackgroundColour(const wxColour &colour);
+ virtual bool SetForegroundColour(const wxColour &colour);
+
+ // get/set the check state for the item (only for wxTR_MULTIPLE)
+ bool IsItemChecked(const wxTreeItemId& item) const;
+ void SetItemCheck(const wxTreeItemId& item, bool check = TRUE);
+
+protected:
+ // SetImageList helper
+ void SetAnyImageList(wxImageList *imageList, int which);
+
+ wxTextCtrl *m_textCtrl; // used while editing the item label
+ wxImageList *m_imageListNormal, // images for tree elements
+ *m_imageListState; // special images for app defined states
+
+private:
+ // the common part of all ctors
+ void Init();
+
+ // helper functions
+ inline bool DoGetItem(wxTreeViewItem *tvItem) const;
+ inline void DoSetItem(wxTreeViewItem *tvItem);
+
+ inline void DoExpand(const wxTreeItemId& item, int flag);
+
+ wxTreeItemId DoInsertItem(const wxTreeItemId& parent,
+ wxTreeItemId hInsertAfter,
+ const wxString& text,
+ int image, int selectedImage,
+ wxTreeItemData *data);
+
+ int DoGetItemImageFromData(const wxTreeItemId& item,
+ wxTreeItemIcon which) const;
+ void DoSetItemImageFromData(const wxTreeItemId& item,
+ int image,
+ wxTreeItemIcon which) const;
+ void DoSetItemImages(const wxTreeItemId& item, int image, int imageSel);
+
+ void DeleteTextCtrl();
+
+ // support for additional item images
+ friend class wxTreeItemIndirectData;
+ void SetIndirectItemData(const wxTreeItemId& item,
+ wxTreeItemIndirectData *data);
+ bool HasIndirectData(const wxTreeItemId& item) const;
+
+ // the array storing all item ids which have indirect data
+ wxArrayTreeItemIds m_itemsWithIndirectData;
+
+ // the hash storing the items attributes (indexed by items ids)
+ wxHashTable m_attrs;
+
+ // TRUE if the hash above is not empty
+ bool m_hasAnyAttr;
+
+ DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
+};
projects / wxWidgets.git / blobdiff