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484523cf 1/////////////////////////////////////////////////////////////////////////////
5e0e6ceb 2// Name: treebase.h
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3// Purpose: wxTreeCtrl base classes and types
4// Author: Julian Smart et al
5// Modified by:
6// Created: 01/02/97
7// RCS-ID: $Id$
8// Copyright: (c) 1997,1998 Robert Roebling
9// Licence: wxWindows licence
10/////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_TREEBASE_H_
13#define _WX_TREEBASE_H_
14
15#ifdef __GNUG__
16 #pragma interface "treebase.h"
17#endif
18
19// ----------------------------------------------------------------------------
20// headers
21// ----------------------------------------------------------------------------
22
1e6feb95 23#if wxUSE_TREECTRL
33737618 24
618a5e38 25#include "wx/window.h" // for wxClientData
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26#include "wx/event.h"
27
28// ----------------------------------------------------------------------------
29// wxTreeItemId identifies an element of the tree. In this implementation, it's
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30// just a trivial wrapper around Win32 HTREEITEM or a pointer to some private
31// data structure in the generic version. It's opaque for the application and
32// the only method which can be used by user code is IsOk().
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33// ----------------------------------------------------------------------------
34
35// Using this typedef removes an ambiguity when calling Remove()
36typedef unsigned long wxTreeItemIdValue;
37
38class WXDLLEXPORT wxTreeItemId
39{
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40public:
41 // ctors
42 // 0 is invalid value for HTREEITEM
43 wxTreeItemId() { m_pItem = 0; }
44
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45 // this one is used in the generic version
46 wxTreeItemId(void *pItem) { m_pItem = (long) pItem; }
47
48 // and this one under MSW
49 wxTreeItemId(long lItem) { m_pItem = lItem; }
50
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51 // default copy ctor/assignment operator are ok for us
52
53 // accessors
54 // is this a valid tree item?
55 bool IsOk() const { return m_pItem != 0; }
56
57 // deprecated: only for compatibility
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58 operator wxTreeItemIdValue() const { return m_pItem; }
59
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60 wxTreeItemIdValue m_pItem;
61};
62
63// ----------------------------------------------------------------------------
64// wxTreeItemData is some (arbitrary) user class associated with some item. The
65// main advantage of having this class (compared to old untyped interface) is
66// that wxTreeItemData's are destroyed automatically by the tree and, as this
67// class has virtual dtor, it means that the memory will be automatically
68// freed. OTOH, we don't just use wxObject instead of wxTreeItemData because
69// the size of this class is critical: in any real application, each tree leaf
70// will have wxTreeItemData associated with it and number of leaves may be
71// quite big.
72//
73// Because the objects of this class are deleted by the tree, they should
74// always be allocated on the heap!
75// ----------------------------------------------------------------------------
76
77class WXDLLEXPORT wxTreeItemData: public wxClientData
78{
79friend class WXDLLEXPORT wxTreeCtrl;
80friend class WXDLLEXPORT wxGenericTreeCtrl;
81public:
82 // creation/destruction
83 // --------------------
84 // default ctor
85 wxTreeItemData() { }
86
87 // default copy ctor/assignment operator are ok
88
89 // accessor: get the item associated with us
90 const wxTreeItemId& GetId() const { return m_pItem; }
91 void SetId(const wxTreeItemId& id) { m_pItem = id; }
92
93protected:
94 wxTreeItemId m_pItem;
95};
96
97WX_DEFINE_EXPORTED_ARRAY(wxTreeItemId, wxArrayTreeItemIds);
98
99// ----------------------------------------------------------------------------
100// constants
101// ----------------------------------------------------------------------------
102
103// enum for different images associated with a treectrl item
104enum wxTreeItemIcon
105{
106 wxTreeItemIcon_Normal, // not selected, not expanded
107 wxTreeItemIcon_Selected, // selected, not expanded
108 wxTreeItemIcon_Expanded, // not selected, expanded
109 wxTreeItemIcon_SelectedExpanded, // selected, expanded
110 wxTreeItemIcon_Max
111};
112
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113/*
114 * wxTreeCtrl flags
115 */
116// TODO: maybe renumber these?
117#define wxTR_NO_BUTTONS 0x0000 // for convenience
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118#define wxTR_HAS_BUTTONS 0x0001 // generates a +/- button
119#define wxTR_TWIST_BUTTONS 0x0002 // generates a twister button
120#define wxTR_NO_LINES 0x0004 // don't generate level connectors
121#define wxTR_LINES_AT_ROOT 0x0008 // connect top-level nodes
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122#define wxTR_MAC_BUTTONS wxTR_TWIST_BUTTONS // backward compatibility
123
124#define wxTR_SINGLE 0x0000 // for convenience
125#define wxTR_MULTIPLE 0x0020 // can select multiple items
126#define wxTR_EXTENDED 0x0040 // TODO: allow extended selection
127
128#define wxTR_EDIT_LABELS 0x0200 // can edit item labels
618a5e38 129#define wxTR_ROW_LINES 0x0400 // put border around items
2b84e565 130#define wxTR_HIDE_ROOT 0x0800 // don't display root node
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131#define wxTR_HAS_VARIABLE_ROW_HEIGHT 0x0080 // what it says
132
133// TODO: different default styles for wxGTK, wxMotif, whatever?
134#ifdef __WXMAC__
135 #define wxTR_DEFAULT_STYLE (wxTR_TWIST_BUTTONS|wxTR_NO_LINES|wxTR_ROW_LINES)
136#else
137 #define wxTR_DEFAULT_STYLE (wxTR_HAS_BUTTONS|wxTR_LINES_AT_ROOT)
138#endif
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139
140// values for the `flags' parameter of wxTreeCtrl::HitTest() which determine
141// where exactly the specified point is situated:
142
143static const int wxTREE_HITTEST_ABOVE = 0x0001;
144static const int wxTREE_HITTEST_BELOW = 0x0002;
145static const int wxTREE_HITTEST_NOWHERE = 0x0004;
146 // on the button associated with an item.
147static const int wxTREE_HITTEST_ONITEMBUTTON = 0x0008;
148 // on the bitmap associated with an item.
149static const int wxTREE_HITTEST_ONITEMICON = 0x0010;
150 // on the indent associated with an item.
151static const int wxTREE_HITTEST_ONITEMINDENT = 0x0020;
152 // on the label (string) associated with an item.
153static const int wxTREE_HITTEST_ONITEMLABEL = 0x0040;
154 // on the right of the label associated with an item.
155static const int wxTREE_HITTEST_ONITEMRIGHT = 0x0080;
156 // on the label (string) associated with an item.
157static const int wxTREE_HITTEST_ONITEMSTATEICON = 0x0100;
158 // on the left of the wxTreeCtrl.
159static const int wxTREE_HITTEST_TOLEFT = 0x0200;
160 // on the right of the wxTreeCtrl.
161static const int wxTREE_HITTEST_TORIGHT = 0x0400;
162 // on the upper part (first half) of the item.
163static const int wxTREE_HITTEST_ONITEMUPPERPART = 0x0800;
164 // on the lower part (second half) of the item.
165static const int wxTREE_HITTEST_ONITEMLOWERPART = 0x1000;
166
167 // anywhere on the item
168static const int wxTREE_HITTEST_ONITEM = wxTREE_HITTEST_ONITEMICON |
169 wxTREE_HITTEST_ONITEMLABEL;
170
171// tree ctrl default name
161f4f73 172WXDLLEXPORT_DATA(extern const wxChar*) wxTreeCtrlNameStr;
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173
174// ----------------------------------------------------------------------------
175// wxTreeItemAttr: a structure containing the visual attributes of an item
176// ----------------------------------------------------------------------------
177
178class WXDLLEXPORT wxTreeItemAttr
179{
180public:
181 // ctors
182 wxTreeItemAttr() { }
183 wxTreeItemAttr(const wxColour& colText,
184 const wxColour& colBack,
185 const wxFont& font)
186 : m_colText(colText), m_colBack(colBack), m_font(font) { }
187
188 // setters
189 void SetTextColour(const wxColour& colText) { m_colText = colText; }
190 void SetBackgroundColour(const wxColour& colBack) { m_colBack = colBack; }
191 void SetFont(const wxFont& font) { m_font = font; }
192
193 // accessors
194 bool HasTextColour() const { return m_colText.Ok(); }
195 bool HasBackgroundColour() const { return m_colBack.Ok(); }
196 bool HasFont() const { return m_font.Ok(); }
197
198 const wxColour& GetTextColour() const { return m_colText; }
199 const wxColour& GetBackgroundColour() const { return m_colBack; }
200 const wxFont& GetFont() const { return m_font; }
201
202private:
203 wxColour m_colText,
204 m_colBack;
205 wxFont m_font;
206};
207
208// ----------------------------------------------------------------------------
209// wxTreeEvent is a special class for all events associated with tree controls
210//
211// NB: note that not all accessors make sense for all events, see the event
212// descriptions below
213// ----------------------------------------------------------------------------
214
215class WXDLLEXPORT wxTreeEvent : public wxNotifyEvent
216{
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217public:
218 wxTreeEvent(wxEventType commandType = wxEVT_NULL, int id = 0);
219
220 // accessors
221 // get the item on which the operation was performed or the newly
222 // selected item for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events
223 wxTreeItemId GetItem() const { return m_item; }
224
225 // for wxEVT_COMMAND_TREE_SEL_CHANGED/ING events, get the previously
226 // selected item
227 wxTreeItemId GetOldItem() const { return m_itemOld; }
228
229 // the point where the mouse was when the drag operation started (for
33737618 230 // wxEVT_COMMAND_TREE_BEGIN_(R)DRAG events only) or click position
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231 wxPoint GetPoint() const { return m_pointDrag; }
232
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233 // keyboard data (for wxEVT_COMMAND_TREE_KEY_DOWN only)
234 const wxKeyEvent& GetKeyEvent() const { return m_evtKey; }
235 int GetCode() const { return m_evtKey.GetKeyCode(); }
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236
237 // label (for EVT_TREE_{BEGIN|END}_LABEL_EDIT only)
238 const wxString& GetLabel() const { return m_label; }
239
240private:
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241 // not all of the members are used (or initialized) for all events
242 wxKeyEvent m_evtKey;
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243 wxTreeItemId m_item,
244 m_itemOld;
245 wxPoint m_pointDrag;
246 wxString m_label;
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247
248 friend class WXDLLEXPORT wxTreeCtrl;
249 friend class WXDLLEXPORT wxGenericTreeCtrl;
250
251 DECLARE_DYNAMIC_CLASS(wxTreeEvent);
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252};
253
254typedef void (wxEvtHandler::*wxTreeEventFunction)(wxTreeEvent&);
255
256// ----------------------------------------------------------------------------
2e4df4bf 257// tree control events and macros for handling them
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258// ----------------------------------------------------------------------------
259
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260BEGIN_DECLARE_EVENT_TYPES()
261 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_DRAG, 600)
262 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_RDRAG, 601)
263 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, 602)
264 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_LABEL_EDIT, 603)
265 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_DELETE_ITEM, 604)
266 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_GET_INFO, 605)
267 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SET_INFO, 606)
268 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDED, 607)
269 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_EXPANDING, 608)
270 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSED, 609)
271 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_COLLAPSING, 610)
272 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGED, 611)
273 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_SEL_CHANGING, 612)
274 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_KEY_DOWN, 613)
275 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_ACTIVATED, 614)
276 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, 615)
277 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, 616)
278 DECLARE_EVENT_TYPE(wxEVT_COMMAND_TREE_END_DRAG, 617)
279END_DECLARE_EVENT_TYPES()
280
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281// GetItem() returns the item being dragged, GetPoint() the mouse coords
282//
283// if you call event.Allow(), the drag operation will start and a
284// EVT_TREE_END_DRAG event will be sent when the drag is over.
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285#define EVT_TREE_BEGIN_DRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
286#define EVT_TREE_BEGIN_RDRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_RDRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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287
288// GetItem() is the item on which the drop occured (if any) and GetPoint() the
289// current mouse coords
2e4df4bf 290#define EVT_TREE_END_DRAG(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_END_DRAG, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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291
292// GetItem() returns the itme whose label is being edited, GetLabel() returns
293// the current item label for BEGIN and the would be new one for END.
294//
295// Vetoing BEGIN event means that label editing won't happen at all,
296// vetoing END means that the new value is discarded and the old one kept
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297#define EVT_TREE_BEGIN_LABEL_EDIT(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_BEGIN_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
298#define EVT_TREE_END_LABEL_EDIT(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_END_LABEL_EDIT, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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299
300// provide/update information about GetItem() item
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301#define EVT_TREE_GET_INFO(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_GET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
302#define EVT_TREE_SET_INFO(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SET_INFO, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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303
304// GetItem() is the item being expanded/collapsed, the "ING" versions can use
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305#define EVT_TREE_ITEM_EXPANDED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_EXPANDED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
306#define EVT_TREE_ITEM_EXPANDING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_EXPANDING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
307#define EVT_TREE_ITEM_COLLAPSED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_COLLAPSED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
308#define EVT_TREE_ITEM_COLLAPSING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_COLLAPSING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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309
310// GetOldItem() is the item which had the selection previously, GetItem() is
311// the item which acquires selection
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312#define EVT_TREE_SEL_CHANGED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SEL_CHANGED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
313#define EVT_TREE_SEL_CHANGING(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_SEL_CHANGING, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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314
315// GetCode() returns the key code
316// NB: this is the only message for which GetItem() is invalid (you may get the
317// item from GetSelection())
2e4df4bf 318#define EVT_TREE_KEY_DOWN(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_KEY_DOWN, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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319
320// GetItem() returns the item being deleted, the associated data (if any) will
321// be deleted just after the return of this event handler (if any)
2e4df4bf 322#define EVT_TREE_DELETE_ITEM(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_DELETE_ITEM, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, (wxObject *) NULL ),
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323
324// GetItem() returns the item that was activated (double click, enter, space)
2e4df4bf 325#define EVT_TREE_ITEM_ACTIVATED(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_ACTIVATED, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
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326
327// GetItem() returns the item that was clicked on
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328#define EVT_TREE_ITEM_RIGHT_CLICK(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_RIGHT_CLICK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
329#define EVT_TREE_ITEM_MIDDLE_CLICK(id, fn) DECLARE_EVENT_TABLE_ENTRY( wxEVT_COMMAND_TREE_ITEM_MIDDLE_CLICK, id, -1, (wxObjectEventFunction) (wxEventFunction) (wxTreeEventFunction) & fn, NULL ),
484523cf 330
1e6feb95 331#endif // wxUSE_TREECTRL
33737618 332
618a5e38 333#endif // _WX_TREEBASE_H_
484523cf 334