X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/08b7c251c45573a76706a5bbd4e667e186e01f61..904ec517d32ae8ed7b45bf69d94892eca0eac05a:/include/wx/msw/treectrl.h diff --git a/include/wx/msw/treectrl.h b/include/wx/msw/treectrl.h index f8b34757c2..313018797d 100644 --- a/include/wx/msw/treectrl.h +++ b/include/wx/msw/treectrl.h @@ -15,25 +15,31 @@ // ---------------------------------------------------------------------------- // headers // ---------------------------------------------------------------------------- + #ifdef __GNUG__ #pragma interface "treectrl.h" #endif -#include "wx/control.h" -#include "wx/event.h" +#include "wx/textctrl.h" +#include "wx/dynarray.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 wxImageList; -struct wxTreeViewItem; +class WXDLLEXPORT wxImageList; +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 @@ -106,20 +112,18 @@ public: // to "long" which used to be the type for tree item ids in previous // versions of wxWindows -#ifdef wxHTREEITEM_DEFINED // for wxTreeCtrl usage only - wxTreeItemId(HTREEITEM itemId) { m_itemId = (long)itemId; } - operator HTREEITEM() const { return (HTREEITEM)m_itemId; } -#else // !wxHTREEITEM_DEFINED - // deprecated: only for compatibility - wxTreeItemId(long itemId) { m_itemId = itemId; } - operator long() const { return m_itemId; } -#endif // wxHTREEITEM_DEFINED + wxTreeItemId(WXHTREEITEM itemId) { m_itemId = (long)itemId; } + operator WXHTREEITEM() const { return (WXHTREEITEM)m_itemId; } + + void operator=(WXHTREEITEM item) { m_itemId = (long) item; } protected: long m_itemId; }; +WX_DEFINE_ARRAY(wxTreeItemId, wxArrayTreeItemIds); + // ---------------------------------------------------------------------------- // wxTreeItemData is some (arbitrary) user class associated with some item. The // main advantage of having this class (compared to old untyped interface) is @@ -133,27 +137,23 @@ protected: // Because the objects of this class are deleted by the tree, they should // always be allocated on the heap! // ---------------------------------------------------------------------------- -class WXDLLEXPORT wxTreeItemData +class WXDLLEXPORT wxTreeItemData : private wxTreeItemId { -friend class wxTreeCtrl; public: - // creation/destruction - // -------------------- - // default ctor - wxTreeItemData() { } - - // default copy ctor/assignment operator are ok + // default ctor/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 + // 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; + // accessors: set/get the item associated with this node + void SetId(const wxTreeItemId& id) { m_itemId = id; } +#ifdef __WATCOMC__ + const wxTreeItemId GetId() const { return m_itemId; } +#else + const wxTreeItemId& GetId() const { return (wxTreeItemId&) m_itemId; } +#endif }; // ---------------------------------------------------------------------------- @@ -197,6 +197,11 @@ public: 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 ) {} + // 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 @@ -242,6 +247,18 @@ public: // 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); + // item status inquiries // --------------------- @@ -253,6 +270,16 @@ public: 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 // ---------- @@ -265,6 +292,12 @@ public: // 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; @@ -276,9 +309,11 @@ public: // the same! // get the first child of this item - wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& cookie) const; + wxTreeItemId GetFirstChild(const wxTreeItemId& item, long& _cookie) const; // get the next child - wxTreeItemId GetNextChild(const wxTreeItemId& item, long& cookie) const; + 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; @@ -322,7 +357,11 @@ public: // 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 @@ -336,6 +375,8 @@ public: // 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 @@ -357,30 +398,37 @@ public: // 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 // ---------- @@ -406,9 +454,12 @@ public: // implementation // -------------- - void Command(wxCommandEvent& event) { ProcessCommand(event); }; - bool MSWCommand(WXUINT param, WXWORD id); - bool MSWNotify(WXWPARAM wParam, WXLPARAM lParam); + virtual bool MSWCommand(WXUINT param, WXWORD id); + virtual bool MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result); + + // 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 @@ -434,90 +485,12 @@ private: int image, int selectedImage, wxTreeItemData *data); + void DoSetItemImages(const wxTreeItemId& item, int image, int imageSel); + void DeleteTextCtrl(); DECLARE_DYNAMIC_CLASS(wxTreeCtrl) }; -// ---------------------------------------------------------------------------- -// 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); - - // 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; } - - // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously - // selected item - wxTreeItemId GetOldItem() const { return m_itemOld; } - - // 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; } - - // keyboard code (for wxEVT_COMMAND_TREE_KEY_DOWN only) - int GetCode() const { return m_code; } - - // 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; } - -private: - // @@ we could save some space by using union here - int m_code; - wxTreeItemId m_item, - m_itemOld; - wxPoint m_pointDrag; - - DECLARE_DYNAMIC_CLASS(wxTreeEvent) -}; - -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 // _WX_TREECTRL_H_