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1///////////////////////////////////////////////////////////////////////////////
2// Name: wx/htmllbox.h
3// Purpose: wxHtmlListBox is a listbox whose items are wxHtmlCells
4// Author: Vadim Zeitlin
5// Modified by:
6// Created: 31.05.03
7// RCS-ID: $Id$
77ffb593 8// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
65571936 9// Licence: wxWindows licence
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10///////////////////////////////////////////////////////////////////////////////
11
12#ifndef _WX_HTMLLBOX_H_
13#define _WX_HTMLLBOX_H_
14
15#include "wx/vlbox.h" // base class
bc55e31b 16#include "wx/html/htmlwin.h"
9ebb7cad 17#include "wx/ctrlsub.h"
e0c6027b 18
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19#if wxUSE_FILESYSTEM
20 #include "wx/filesys.h"
21#endif // wxUSE_FILESYSTEM
22
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23class WXDLLIMPEXP_HTML wxHtmlCell;
24class WXDLLIMPEXP_HTML wxHtmlWinParser;
25class WXDLLIMPEXP_HTML wxHtmlListBoxCache;
26class WXDLLIMPEXP_HTML wxHtmlListBoxStyle;
e0c6027b 27
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28extern WXDLLIMPEXP_DATA_HTML(const wxChar) wxHtmlListBoxNameStr[];
29extern WXDLLIMPEXP_DATA_HTML(const wxChar) wxSimpleHtmlListBoxNameStr[];
9ebb7cad 30
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31// ----------------------------------------------------------------------------
32// wxHtmlListBox
33// ----------------------------------------------------------------------------
34
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35class WXDLLIMPEXP_HTML wxHtmlListBox : public wxVListBox,
36 public wxHtmlWindowInterface,
31297dbb 37 public wxHtmlWindowMouseHelper
e0c6027b 38{
0c8392ca 39 DECLARE_ABSTRACT_CLASS(wxHtmlListBox)
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40public:
41 // constructors and such
42 // ---------------------
43
44 // default constructor, you must call Create() later
bc55e31b 45 wxHtmlListBox();
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46
47 // normal constructor which calls Create() internally
48 wxHtmlListBox(wxWindow *parent,
49 wxWindowID id = wxID_ANY,
50 const wxPoint& pos = wxDefaultPosition,
51 const wxSize& size = wxDefaultSize,
e0c6027b 52 long style = 0,
9ebb7cad 53 const wxString& name = wxHtmlListBoxNameStr);
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54
55 // really creates the control and sets the initial number of items in it
56 // (which may be changed later with SetItemCount())
57 //
43e319a3 58 // the only special style which may be specified here is wxLB_MULTIPLE
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59 //
60 // returns true on success or false if the control couldn't be created
61 bool Create(wxWindow *parent,
62 wxWindowID id = wxID_ANY,
63 const wxPoint& pos = wxDefaultPosition,
64 const wxSize& size = wxDefaultSize,
e0c6027b 65 long style = 0,
9ebb7cad 66 const wxString& name = wxHtmlListBoxNameStr);
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67
68 // destructor cleans up whatever resources we use
69 virtual ~wxHtmlListBox();
70
03495767 71 // override some base class virtuals
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72 virtual void RefreshLine(size_t line);
73 virtual void RefreshLines(size_t from, size_t to);
5ecdc7ab 74 virtual void RefreshAll();
03495767 75 virtual void SetItemCount(size_t count);
5ecdc7ab 76
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77
78#if wxUSE_FILESYSTEM
79 // retrieve the file system used by the wxHtmlWinParser: if you use
80 // relative paths in your HTML, you should use its ChangePathTo() method
81 wxFileSystem& GetFileSystem() { return m_filesystem; }
82 const wxFileSystem& GetFileSystem() const { return m_filesystem; }
83#endif // wxUSE_FILESYSTEM
84
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85 virtual void OnInternalIdle();
86
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87protected:
88 // this method must be implemented in the derived class and should return
89 // the body (i.e. without <html>) of the HTML for the given item
90 virtual wxString OnGetItem(size_t n) const = 0;
91
92 // this function may be overridden to decorate HTML returned by OnGetItem()
93 virtual wxString OnGetItemMarkup(size_t n) const;
94
95
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96 // this method allows to customize the selection appearance: it may be used
97 // to specify the colour of the text which normally has the given colour
98 // colFg when it is inside the selection
99 //
100 // by default, the original colour is not used at all and all text has the
101 // same (default for this system) colour inside selection
102 virtual wxColour GetSelectedTextColour(const wxColour& colFg) const;
103
104 // this is the same as GetSelectedTextColour() but allows to customize the
105 // background colour -- this is even more rarely used as you can change it
106 // globally using SetSelectionBackground()
107 virtual wxColour GetSelectedTextBgColour(const wxColour& colBg) const;
108
109
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110 // we implement both of these functions in terms of OnGetItem(), they are
111 // not supposed to be overridden by our descendants
112 virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const;
113 virtual wxCoord OnMeasureItem(size_t n) const;
114
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115 // This method may be overriden to handle clicking on a link in
116 // the listbox. By default, clicking links is ignored.
117 virtual void OnLinkClicked(size_t WXUNUSED(n),
9ebb7cad 118 const wxHtmlLinkInfo& WXUNUSED(link)) { }
e0c6027b 119
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120 // event handlers
121 void OnSize(wxSizeEvent& event);
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122 void OnMouseMove(wxMouseEvent& event);
123 void OnLeftDown(wxMouseEvent& event);
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124
125
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126 // common part of all ctors
127 void Init();
128
129 // ensure that the given item is cached
130 void CacheItem(size_t n) const;
131
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132private:
133 // wxHtmlWindowInterface methods:
134 virtual void SetHTMLWindowTitle(const wxString& title);
135 virtual void OnHTMLLinkClicked(const wxHtmlLinkInfo& link);
136 virtual wxHtmlOpeningStatus OnHTMLOpeningURL(wxHtmlURLType type,
137 const wxString& url,
138 wxString *redirect) const;
139 virtual wxPoint HTMLCoordsToWindow(wxHtmlCell *cell,
140 const wxPoint& pos) const;
141 virtual wxWindow* GetHTMLWindow();
142 virtual wxColour GetHTMLBackgroundColour() const;
143 virtual void SetHTMLBackgroundColour(const wxColour& clr);
144 virtual void SetHTMLBackgroundImage(const wxBitmap& bmpBg);
145 virtual void SetHTMLStatusText(const wxString& text);
88a1b648 146 virtual wxCursor GetHTMLCursor(HTMLCursor type) const;
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147
148 // returns index of item that contains given HTML cell
149 size_t GetItemForCell(const wxHtmlCell *cell) const;
150
151 // return physical coordinates of root wxHtmlCell of n-th item
152 wxPoint GetRootCellCoords(size_t n) const;
153
154 // Converts physical coordinates stored in @a pos into coordinates
155 // relative to the root cell of the item under mouse cursor, if any. If no
156 // cell is found under the cursor, returns false. Otherwise stores the new
157 // coordinates back into @a pos and pointer to the cell under cursor into
158 // @a cell and returns true.
159 bool PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const;
160
161 // The opposite of PhysicalCoordsToCell: converts coordinates relative to
162 // given cell to physical coordinates in the window
163 wxPoint CellCoordsToPhysical(const wxPoint& pos, wxHtmlCell *cell) const;
164
e0c6027b 165private:
9a9b4940 166 // this class caches the pre-parsed HTML to speed up display
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167 wxHtmlListBoxCache *m_cache;
168
169 // HTML parser we use
170 wxHtmlWinParser *m_htmlParser;
5ecdc7ab 171
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172#if wxUSE_FILESYSTEM
173 // file system used by m_htmlParser
174 wxFileSystem m_filesystem;
175#endif // wxUSE_FILESYSTEM
176
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177 // rendering style for the parser which allows us to customize our colours
178 wxHtmlListBoxStyle *m_htmlRendStyle;
179
180
181 // it calls our GetSelectedTextColour() and GetSelectedTextBgColour()
182 friend class wxHtmlListBoxStyle;
bc55e31b 183 friend class wxHtmlListBoxWinInterface;
9a9b4940 184
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185
186 DECLARE_EVENT_TABLE()
27d0dcd0 187 DECLARE_NO_COPY_CLASS(wxHtmlListBox)
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188};
189
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190
191// ----------------------------------------------------------------------------
192// wxSimpleHtmlListBox
193// ----------------------------------------------------------------------------
194
195#define wxHLB_DEFAULT_STYLE wxBORDER_SUNKEN
196#define wxHLB_MULTIPLE wxLB_MULTIPLE
197
198class WXDLLIMPEXP_HTML wxSimpleHtmlListBox : public wxHtmlListBox,
199 public wxItemContainer
200{
201public:
202 // wxListbox-compatible constructors
203 // ---------------------------------
204
205 wxSimpleHtmlListBox() { }
206
207 wxSimpleHtmlListBox(wxWindow *parent,
208 wxWindowID id,
209 const wxPoint& pos = wxDefaultPosition,
210 const wxSize& size = wxDefaultSize,
211 int n = 0, const wxString choices[] = NULL,
212 long style = wxHLB_DEFAULT_STYLE,
213 const wxValidator& validator = wxDefaultValidator,
214 const wxString& name = wxSimpleHtmlListBoxNameStr)
215 {
216 Create(parent, id, pos, size, n, choices, style, validator, name);
217 }
218
219 wxSimpleHtmlListBox(wxWindow *parent,
220 wxWindowID id,
221 const wxPoint& pos,
222 const wxSize& size,
223 const wxArrayString& choices,
224 long style = wxHLB_DEFAULT_STYLE,
225 const wxValidator& validator = wxDefaultValidator,
226 const wxString& name = wxSimpleHtmlListBoxNameStr)
227 {
228 Create(parent, id, pos, size, choices, style, validator, name);
229 }
230
231 bool Create(wxWindow *parent, wxWindowID id,
232 const wxPoint& pos = wxDefaultPosition,
233 const wxSize& size = wxDefaultSize,
234 int n = 0, const wxString choices[] = NULL,
235 long style = wxHLB_DEFAULT_STYLE,
236 const wxValidator& validator = wxDefaultValidator,
237 const wxString& name = wxSimpleHtmlListBoxNameStr);
238 bool Create(wxWindow *parent, wxWindowID id,
239 const wxPoint& pos,
240 const wxSize& size,
241 const wxArrayString& choices,
242 long style = wxHLB_DEFAULT_STYLE,
243 const wxValidator& validator = wxDefaultValidator,
244 const wxString& name = wxSimpleHtmlListBoxNameStr);
d54b227f 245
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246 virtual ~wxSimpleHtmlListBox();
247
248 // these must be overloaded otherwise the compiler will complain
249 // about wxItemContainerImmutable::[G|S]etSelection being pure virtuals...
250 void SetSelection(int n)
d54b227f 251 { wxVListBox::SetSelection(n); }
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252 int GetSelection() const
253 { return wxVListBox::GetSelection(); }
254
255 // see ctrlsub.h for more info about this:
256 wxCONTROL_ITEMCONTAINER_CLIENTDATAOBJECT_RECAST
257
258
259 // accessing strings
260 // -----------------
261
262 virtual unsigned int GetCount() const
263 { return m_items.GetCount(); }
264
265 virtual wxString GetString(unsigned int n) const;
266
267 // override default unoptimized wxItemContainer::GetStrings() function
268 wxArrayString GetStrings() const
269 { return m_items; }
270
271 virtual void SetString(unsigned int n, const wxString& s);
272
273 virtual void Clear();
274 virtual void Delete(unsigned int n);
275
276 // override default unoptimized wxItemContainer::Append() function
277 void Append(const wxArrayString& strings);
278
279 // since we override one Append() overload, we need to overload all others too
280 int Append(const wxString& item)
281 { return wxItemContainer::Append(item); }
282 int Append(const wxString& item, void *clientData)
283 { return wxItemContainer::Append(item, clientData); }
284 int Append(const wxString& item, wxClientData *clientData)
285 { return wxItemContainer::Append(item, clientData); }
286
287
288protected:
289
290 virtual int DoAppend(const wxString& item);
291 virtual int DoInsert(const wxString& item, unsigned int pos);
292
293 virtual void DoSetItemClientData(unsigned int n, void *clientData)
294 { m_clientData[n] = clientData; }
295
296 virtual void *DoGetItemClientData(unsigned int n) const
297 { return m_clientData[n]; }
298 virtual void DoSetItemClientObject(unsigned int n, wxClientData *clientData)
299 { m_clientData[n] = (void *)clientData; }
300 virtual wxClientData *DoGetItemClientObject(unsigned int n) const
301 { return (wxClientData *)m_clientData[n]; }
302
303 // calls wxHtmlListBox::SetItemCount() and RefreshAll()
304 void UpdateCount();
305
306 // overload these functions just to change their visibility: users of
307 // wxSimpleHtmlListBox shouldn't be allowed to call them directly!
308 virtual void SetItemCount(size_t count)
d54b227f 309 { wxHtmlListBox::SetItemCount(count); }
9ebb7cad 310 virtual void SetLineCount(size_t count)
d54b227f 311 { wxHtmlListBox::SetLineCount(count); }
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312
313 virtual wxString OnGetItem(size_t n) const
314 { return m_items[n]; }
315
316 wxArrayString m_items;
317 wxArrayPtrVoid m_clientData;
318
319 DECLARE_NO_COPY_CLASS(wxSimpleHtmlListBox)
320};
321
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322#endif // _WX_HTMLLBOX_H_
323