The Image sample now does anti-aliasing, oh well.

[wxWidgets.git] / include / wx / generic / treectrl.h

diff --git a/include/wx/generic/treectrl.h b/include/wx/generic/treectrl.h
index a9779e966895306e6caf701d8c620a5d983cab2c..cd3c90b8b6dc9cda0f4ac32e8bc2db151fe6f08d 100644 (file)
--- a/include/wx/generic/treectrl.h
+++ b/include/wx/generic/treectrl.h
@@ -16,12 +16,34 @@
     #pragma interface "treectrl.h"
 #endif
 
+#ifdef __WXMSW__
+WXDLLEXPORT_DATA(extern const char*) wxTreeCtrlNameStr;
+#else
+#define wxTreeCtrlNameStr "wxTreeCtrl"
+#endif
+
 #include "wx/defs.h"
 #include "wx/string.h"
 #include "wx/object.h"
 #include "wx/event.h"
 #include "wx/scrolwin.h"
 #include "wx/textctrl.h"
+#include "wx/pen.h"
+
+// -----------------------------------------------------------------------------
+// constants
+// -----------------------------------------------------------------------------
+
+// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
+// where exactly the specified point is situated:
+static const int wxTREE_HITTEST_NOWHERE          = 0x0004;
+    // on the bitmap associated with an item.
+static const int wxTREE_HITTEST_ONITEMICON       = 0x0020;
+    // on the label (string) associated with an item.
+static const int wxTREE_HITTEST_ONITEMLABEL      = 0x0080;
+    // anywhere on the item
+static const int wxTREE_HITTEST_ONITEM  = wxTREE_HITTEST_ONITEMICON |
+                                          wxTREE_HITTEST_ONITEMLABEL;
 
 // -----------------------------------------------------------------------------
 // forward declaration
@@ -31,7 +53,6 @@ class wxImageList;
 class wxGenericTreeItem;
 
 class wxTreeItemData;
-typedef int (*wxTreeItemCmpFunc)(wxTreeItemData *item1, wxTreeItemData *item2);
 
 // -----------------------------------------------------------------------------
 // wxTreeItemId - unique identifier of a tree element
@@ -91,7 +112,7 @@ protected:
 // -----------------------------------------------------------------------------
 // wxTreeEvent - the event generated by the tree control
 // -----------------------------------------------------------------------------
-class WXDLLEXPORT wxTreeEvent : public wxCommandEvent
+class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent
 {
 friend class wxTreeCtrl;
 public:
@@ -168,6 +189,9 @@ typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
 // 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 },
 
+// GetItem() returns the item that was activated (double click, enter, space)
+#define EVT_TREE_ITEM_ACTIVATED(id, fn) { wxEVT_COMMAND_TREE_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL },
+
 // -----------------------------------------------------------------------------
 // wxTreeCtrl - the tree control
 // -----------------------------------------------------------------------------
@@ -183,9 +207,10 @@ public:
                const wxPoint& pos = wxDefaultPosition,
                const wxSize& size = wxDefaultSize,
                long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
-               const wxString& name = "wxTreeCtrl")
+              const wxValidator &validator = wxDefaultValidator,
+               const wxString& name = wxTreeCtrlNameStr)
     {
-        Create(parent, id, pos, size, style, name);
+        Create(parent, id, pos, size, style, validator, name);
     }
 
     virtual ~wxTreeCtrl();
@@ -194,7 +219,8 @@ public:
                 const wxPoint& pos = wxDefaultPosition,
                 const wxSize& size = wxDefaultSize,
                 long style = wxTR_HAS_BUTTONS | wxTR_LINES_AT_ROOT,
-                const wxString& name = "wxTreeCtrl");
+               const wxValidator &validator = wxDefaultValidator,
+                const wxString& name = wxTreeCtrlNameStr);
 
     // accessors
     // ---------
@@ -350,7 +376,11 @@ 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
@@ -372,6 +402,12 @@ public:
         // scroll to this item (but don't expand its parent)
     void ScrollTo(const wxTreeItemId& item);
 
+        // 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);
+    
         // 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
@@ -385,14 +421,19 @@ 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);
 
+    // callbacks
     void OnPaint( wxPaintEvent &event );
     void OnSetFocus( wxFocusEvent &event );
     void OnKillFocus( wxFocusEvent &event );
@@ -400,6 +441,9 @@ public:
     void OnMouse( wxMouseEvent &event );
     void OnIdle( wxIdleEvent &event );
 
+    // implementation
+    void SendDeleteEvent(wxGenericTreeItem *itemBeingDeleted);
+
 protected:
     wxGenericTreeItem   *m_anchor;
     wxGenericTreeItem   *m_current;
@@ -412,6 +456,7 @@ protected:
     wxBrush             *m_hilightBrush;
     wxImageList         *m_imageListNormal,
                         *m_imageListState;
+    int                  m_dragCount;
 
     // the common part of all ctors
     void Init();