/////////////////////////////////////////////////////////////////////////////
-// Name: treectrl.h
+// Name: wx/msw/treectrl.h
// Purpose: wxTreeCtrl class
// Author: Julian Smart
// Modified by: Vadim Zeitlin to be less MSW-specific on 10/10/98
// ----------------------------------------------------------------------------
// headers
// ----------------------------------------------------------------------------
+
#ifdef __GNUG__
#pragma interface "treectrl.h"
#endif
-#include "wx/control.h"
-#include "wx/event.h"
+#if wxUSE_TREECTRL
+
+#include "wx/textctrl.h"
+#include "wx/dynarray.h"
+#include "wx/treebase.h"
+
+#ifdef __GNUWIN32__
+ // Cygwin windows.h defines these identifiers
+ #undef GetFirstChild
+ #undef GetNextSibling
+#endif // Cygwin
// the type for "untyped" data
typedef long wxDataType;
// fwd decl
class WXDLLEXPORT wxImageList;
+class WXDLLEXPORT wxDragImage;
struct WXDLLEXPORT wxTreeViewItem;
// a callback function used for sorting tree items, it should return -1 if the
// first item precedes the second, +1 if the second precedes the first or 0 if
// they're equivalent
class wxTreeItemData;
-typedef int (*wxTreeItemCmpFunc)(wxTreeItemData *item1, wxTreeItemData *item2);
-
-// ----------------------------------------------------------------------------
-// constants
-// ----------------------------------------------------------------------------
-
-// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
-// where exactly the specified point is situated:
- // above the client area.
-static const int wxTREE_HITTEST_ABOVE = 0x0001;
- // below the client area.
-static const int wxTREE_HITTEST_BELOW = 0x0002;
- // in the client area but below the last item.
-static const int wxTREE_HITTEST_NOWHERE = 0x0004;
- // on the button associated with an item.
-static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0010;
- // on the bitmap associated with an item.
-static const int wxTREE_HITTEST_ONITEMICON = 0x0020;
- // in the indentation associated with an item.
-static const int wxTREE_HITTEST_ONITEMINDENT = 0x0040;
- // on the label (string) associated with an item.
-static const int wxTREE_HITTEST_ONITEMLABEL = 0x0080;
- // in the area to the right of an item.
-static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0100;
- // on the state icon for a tree view item that is in a user-defined state.
-static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0200;
- // to the right of the client area.
-static const int wxTREE_HITTEST_TOLEFT = 0x0400;
- // to the left of the client area.
-static const int wxTREE_HITTEST_TORIGHT = 0x0800;
- // anywhere on the item
-static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON |
- wxTREE_HITTEST_ONITEMLABEL |
- wxTREE_HITTEST_ONITEMSTATEICON;
// NB: all the following flags are for compatbility only and will be removed in the
// next versions
#define wxTREE_INSERT_FIRST 0xFFFF0001
#define wxTREE_INSERT_LAST 0xFFFF0002
-// ----------------------------------------------------------------------------
-// wxTreeItemId identifies an element of the tree. In this implementation, it's
-// just a trivial wrapper around Win32 HTREEITEM. It's opaque for the
-// application.
-// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxTreeItemId
-{
-public:
- // ctors
- // 0 is invalid value for HTREEITEM
- wxTreeItemId() { m_itemId = 0; }
-
- // default copy ctor/assignment operator are ok for us
-
- // accessors
- // is this a valid tree item?
- bool IsOk() const { return m_itemId != 0; }
-
- // conversion to/from either real (system-dependent) tree item id or
- // to "long" which used to be the type for tree item ids in previous
- // versions of wxWindows
-
- // for wxTreeCtrl usage only
- wxTreeItemId(WXHTREEITEM itemId) { m_itemId = (long)itemId; }
- operator WXHTREEITEM() const { return (WXHTREEITEM)m_itemId; }
-
- void operator =(WXHTREEITEM item) { m_itemId = (long) item; }
-
-// wxTreeItemId(long itemId) { m_itemId = itemId; }
-
-protected:
- long m_itemId;
-};
-
-// ----------------------------------------------------------------------------
-// wxTreeItemData is some (arbitrary) user class associated with some item. The
-// main advantage of having this class (compared to old untyped interface) is
-// that wxTreeItemData's are destroyed automatically by the tree and, as this
-// class has virtual dtor, it means that the memory will be automatically
-// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
-// the size of this class is critical: in any real application, each tree leaf
-// will have wxTreeItemData associated with it and number of leaves may be
-// quite big.
-//
-// Because the objects of this class are deleted by the tree, they should
-// always be allocated on the heap!
-// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxTreeItemData
-{
-friend class wxTreeCtrl;
-public:
- // creation/destruction
- // --------------------
- // default ctor
- wxTreeItemData() { }
-
- // default copy ctor/assignment operator are ok
-
- // dtor is virtual and all the items are deleted by the tree control
- // when it's deleted, so you normally don't have to care about freeing
- // memory allocated in your wxTreeItemData-derived class
- virtual ~wxTreeItemData() { }
-
- // accessor: get the item associated with us
- const wxTreeItemId& GetItemId() const { return m_itemId; }
-
-protected:
- wxTreeItemId m_itemId;
-};
-
// ----------------------------------------------------------------------------
// wxTreeCtrl
// ----------------------------------------------------------------------------
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
void SetImageList(wxImageList *imageList);
void SetStateImageList(wxImageList *imageList);
+ void AssignImageList(wxImageList *imageList);
+ void AssignStateImageList(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
// retrieve items label
wxString GetItemText(const wxTreeItemId& item) const;
- // get the normal item image
- int GetItemImage(const wxTreeItemId& item) const;
- // get the selected item image
- int GetItemSelectedImage(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;
// set items label
void SetItemText(const wxTreeItemId& item, const wxString& text);
- // set the normal item image
- void SetItemImage(const wxTreeItemId& item, int image);
- // set the selected item image
- void SetItemSelectedImage(const wxTreeItemId& item, int image);
+ // 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
// ---------------------
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
// ----------
// 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;
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;
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,
// 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
// 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
// end editing and accept or discard the changes to item label
void EndEditLabel(const wxTreeItemId& item, bool discardChanges = FALSE);
- // sort the children of this item using the specified callback function
- // (it should return -1, 0 or +1 as usual), if it's not specified
- // alphabetical comparaison is performed.
+ // 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!
- void SortChildren(const wxTreeItemId& item,
- wxTreeItemCmpFunc *cmpFunction = NULL);
+ // NB: this function is not reentrant and not MT-safe (FIXME)!
+ void SortChildren(const wxTreeItemId& item);
// helpers
// -------
- // @@@ do we really need to expose these functions to the application?
-
- // get the bounding rectangle of the item (or of its label only)
- void GetBoundingRect(const wxTreeItemId& item,
- wxRectangle& rect,
- bool textOnly = FALSE) const;
-
// 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
+ // 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
// ----------
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
// --------------
- void Command(wxCommandEvent& event) { ProcessCommand(event); };
- bool MSWCommand(WXUINT param, WXWORD id);
- bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam);
+
+ virtual long MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam);
+ 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
+ // refresh a single item
+ void RefreshItem(const wxTreeItemId& item);
+
+ wxTextCtrl *m_textCtrl; // used while editing the item label
wxImageList *m_imageListNormal, // images for tree elements
*m_imageListState; // special images for app defined states
+ bool m_ownsImageListNormal, m_ownsImageListState;
private:
// the common part of all ctors
int image, int selectedImage,
wxTreeItemData *data);
- void DeleteTextCtrl();
-
- DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
-};
+ 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);
-// ----------------------------------------------------------------------------
-// wxTreeEvent is a special class for all events associated with tree controls
-//
-// NB: note that not all accessors make sense for all events, see the event
-// descriptions below
-// ----------------------------------------------------------------------------
-class WXDLLEXPORT wxTreeEvent : public wxCommandEvent
-{
-friend wxTreeCtrl;
-public:
- wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
+ void DeleteTextCtrl();
- // accessors
- // get the item on which the operation was performed or the newly
- // selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events
- wxTreeItemId GetItem() const { return m_item; }
+ // support for additional item images
+ friend class wxTreeItemIndirectData;
+ void SetIndirectItemData(const wxTreeItemId& item,
+ wxTreeItemIndirectData *data);
+ bool HasIndirectData(const wxTreeItemId& item) const;
- // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously
- // selected item
- wxTreeItemId GetOldItem() const { return m_itemOld; }
+ // the array storing all item ids which have indirect data
+ wxArrayTreeItemIds m_itemsWithIndirectData;
- // the point where the mouse was when the drag operation started (for
- // wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only)
- wxPoint GetPoint() const { return m_pointDrag; }
+ // the hash storing the items attributes (indexed by items ids)
+ wxHashTable m_attrs;
- // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only)
- int GetCode() const { return m_code; }
+ // TRUE if the hash above is not empty
+ bool m_hasAnyAttr;
- // set return code for wxEVT_COMMAND_TREE_ITEM_{EXPAND|COLLAPS}ING events
- // call this to forbid the change in item status
- void Veto() { m_code = TRUE; }
+ // used for dragging
+ wxDragImage *m_dragImage;
-private:
- // @@ we could save some space by using union here
- int m_code;
- wxTreeItemId m_item,
- m_itemOld;
- wxPoint m_pointDrag;
+ // the starting item for selection with Shift
+ WXHTREEITEM m_htSelStart;
- DECLARE_DYNAMIC_CLASS(wxTreeEvent)
+ DECLARE_DYNAMIC_CLASS(wxTreeCtrl)
};
-typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
-
-// ----------------------------------------------------------------------------
-// macros for handling tree control events
-// ----------------------------------------------------------------------------
-
-// GetItem() returns the item being dragged, GetPoint() the mouse coords
-#define EVT_TREE_BEGIN_DRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_BEGIN_RDRAG(id, fn) { wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-
-// GetItem() returns the itme whose label is being edited
-#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_END_LABEL_EDIT(id, fn) { wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-
-// provide/update information about GetItem() item
-#define EVT_TREE_GET_INFO(id, fn) { wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_SET_INFO(id, fn) { wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-
-// GetItem() is the item being expanded/collapsed, the "ING" versions can use
-#define EVT_TREE_ITEM_EXPANDED(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_ITEM_EXPANDING(id, fn) { wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_ITEM_COLLAPSED(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
-#define EVT_TREE_ITEM_COLLAPSING(id, fn) { wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
-
-// GetOldItem() is the item which had the selection previously, GetItem() is
-// the item which acquires selection
-#define EVT_TREE_SEL_CHANGED(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
-#define EVT_TREE_SEL_CHANGING(id, fn) { wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
-
-// GetCode() returns the key code
-// NB: this is the only message for which GetItem() is invalid (you may get the
-// item from GetSelection())
-#define EVT_TREE_KEY_DOWN(id, fn) { wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
-
-// GetItem() returns the item being deleted, the associated data (if any) will
-// be deleted just after the return of this event handler (if any)
-#define EVT_TREE_DELETE_ITEM(id, fn) { wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL },
+#endif // wxUSE_TREECTRL
#endif
// _WX_TREECTRL_H_
projects / wxWidgets.git / blobdiff