| | 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: $Id$ |
| | 8 | // Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org> |
| | 9 | // Licence: wxWindows licence |
| | 10 | /////////////////////////////////////////////////////////////////////////////// |
| | 11 | |
| | 12 | #ifndef _WX_HTMLLBOX_H_ |
| | 13 | #define _WX_HTMLLBOX_H_ |
| | 14 | |
| | 15 | #include "wx/vlbox.h" // base class |
| | 16 | #include "wx/html/htmlwin.h" |
| | 17 | #include "wx/ctrlsub.h" |
| | 18 | |
| | 19 | #if wxUSE_FILESYSTEM |
| | 20 | #include "wx/filesys.h" |
| | 21 | #endif // wxUSE_FILESYSTEM |
| | 22 | |
| | 23 | class WXDLLIMPEXP_FWD_HTML wxHtmlCell; |
| | 24 | class WXDLLIMPEXP_FWD_HTML wxHtmlWinParser; |
| | 25 | class WXDLLIMPEXP_FWD_HTML wxHtmlListBoxCache; |
| | 26 | class WXDLLIMPEXP_FWD_HTML wxHtmlListBoxStyle; |
| | 27 | |
| | 28 | extern WXDLLIMPEXP_DATA_HTML(const wxChar) wxHtmlListBoxNameStr[]; |
| | 29 | extern WXDLLIMPEXP_DATA_HTML(const wxChar) wxSimpleHtmlListBoxNameStr[]; |
| | 30 | |
| | 31 | // ---------------------------------------------------------------------------- |
| | 32 | // wxHtmlListBox |
| | 33 | // ---------------------------------------------------------------------------- |
| | 34 | |
| | 35 | class WXDLLIMPEXP_HTML wxHtmlListBox : public wxVListBox, |
| | 36 | public wxHtmlWindowInterface, |
| | 37 | public wxHtmlWindowMouseHelper |
| | 38 | { |
| | 39 | DECLARE_ABSTRACT_CLASS(wxHtmlListBox) |
| | 40 | public: |
| | 41 | // constructors and such |
| | 42 | // --------------------- |
| | 43 | |
| | 44 | // default constructor, you must call Create() later |
| | 45 | wxHtmlListBox(); |
| | 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, |
| | 52 | long style = 0, |
| | 53 | const wxString& name = wxHtmlListBoxNameStr); |
| | 54 | |
| | 55 | // really creates the control and sets the initial number of items in it |
| | 56 | // (which may be changed later with SetItemCount()) |
| | 57 | // |
| | 58 | // the only special style which may be specified here is wxLB_MULTIPLE |
| | 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, |
| | 65 | long style = 0, |
| | 66 | const wxString& name = wxHtmlListBoxNameStr); |
| | 67 | |
| | 68 | // destructor cleans up whatever resources we use |
| | 69 | virtual ~wxHtmlListBox(); |
| | 70 | |
| | 71 | // override some base class virtuals |
| | 72 | virtual void RefreshRow(size_t line); |
| | 73 | virtual void RefreshRows(size_t from, size_t to); |
| | 74 | virtual void RefreshAll(); |
| | 75 | virtual void SetItemCount(size_t count); |
| | 76 | |
| | 77 | #if wxUSE_FILESYSTEM |
| | 78 | // retrieve the file system used by the wxHtmlWinParser: if you use |
| | 79 | // relative paths in your HTML, you should use its ChangePathTo() method |
| | 80 | wxFileSystem& GetFileSystem() { return m_filesystem; } |
| | 81 | const wxFileSystem& GetFileSystem() const { return m_filesystem; } |
| | 82 | #endif // wxUSE_FILESYSTEM |
| | 83 | |
| | 84 | virtual void OnInternalIdle(); |
| | 85 | |
| | 86 | protected: |
| | 87 | // this method must be implemented in the derived class and should return |
| | 88 | // the body (i.e. without <html>) of the HTML for the given item |
| | 89 | virtual wxString OnGetItem(size_t n) const = 0; |
| | 90 | |
| | 91 | // this function may be overridden to decorate HTML returned by OnGetItem() |
| | 92 | virtual wxString OnGetItemMarkup(size_t n) const; |
| | 93 | |
| | 94 | |
| | 95 | // this method allows to customize the selection appearance: it may be used |
| | 96 | // to specify the colour of the text which normally has the given colour |
| | 97 | // colFg when it is inside the selection |
| | 98 | // |
| | 99 | // by default, the original colour is not used at all and all text has the |
| | 100 | // same (default for this system) colour inside selection |
| | 101 | virtual wxColour GetSelectedTextColour(const wxColour& colFg) const; |
| | 102 | |
| | 103 | // this is the same as GetSelectedTextColour() but allows to customize the |
| | 104 | // background colour -- this is even more rarely used as you can change it |
| | 105 | // globally using SetSelectionBackground() |
| | 106 | virtual wxColour GetSelectedTextBgColour(const wxColour& colBg) const; |
| | 107 | |
| | 108 | |
| | 109 | // we implement both of these functions in terms of OnGetItem(), they are |
| | 110 | // not supposed to be overridden by our descendants |
| | 111 | virtual void OnDrawItem(wxDC& dc, const wxRect& rect, size_t n) const; |
| | 112 | virtual wxCoord OnMeasureItem(size_t n) const; |
| | 113 | |
| | 114 | // override this one to draw custom background for selected items correctly |
| | 115 | virtual void OnDrawBackground(wxDC& dc, const wxRect& rect, size_t n) const; |
| | 116 | |
| | 117 | // this method may be overridden to handle clicking on a link in the |
| | 118 | // listbox (by default, clicks on links are simply ignored) |
| | 119 | virtual void OnLinkClicked(size_t n, const wxHtmlLinkInfo& link); |
| | 120 | |
| | 121 | // event handlers |
| | 122 | void OnSize(wxSizeEvent& event); |
| | 123 | void OnMouseMove(wxMouseEvent& event); |
| | 124 | void OnLeftDown(wxMouseEvent& event); |
| | 125 | |
| | 126 | |
| | 127 | // common part of all ctors |
| | 128 | void Init(); |
| | 129 | |
| | 130 | // ensure that the given item is cached |
| | 131 | void CacheItem(size_t n) const; |
| | 132 | |
| | 133 | private: |
| | 134 | // wxHtmlWindowInterface methods: |
| | 135 | virtual void SetHTMLWindowTitle(const wxString& title); |
| | 136 | virtual void OnHTMLLinkClicked(const wxHtmlLinkInfo& link); |
| | 137 | virtual wxHtmlOpeningStatus OnHTMLOpeningURL(wxHtmlURLType type, |
| | 138 | const wxString& url, |
| | 139 | wxString *redirect) const; |
| | 140 | virtual wxPoint HTMLCoordsToWindow(wxHtmlCell *cell, |
| | 141 | const wxPoint& pos) const; |
| | 142 | virtual wxWindow* GetHTMLWindow(); |
| | 143 | virtual wxColour GetHTMLBackgroundColour() const; |
| | 144 | virtual void SetHTMLBackgroundColour(const wxColour& clr); |
| | 145 | virtual void SetHTMLBackgroundImage(const wxBitmap& bmpBg); |
| | 146 | virtual void SetHTMLStatusText(const wxString& text); |
| | 147 | virtual wxCursor GetHTMLCursor(HTMLCursor type) const; |
| | 148 | |
| | 149 | // returns index of item that contains given HTML cell |
| | 150 | size_t GetItemForCell(const wxHtmlCell *cell) const; |
| | 151 | |
| | 152 | // return physical coordinates of root wxHtmlCell of n-th item |
| | 153 | wxPoint GetRootCellCoords(size_t n) const; |
| | 154 | |
| | 155 | // Converts physical coordinates stored in @a pos into coordinates |
| | 156 | // relative to the root cell of the item under mouse cursor, if any. If no |
| | 157 | // cell is found under the cursor, returns false. Otherwise stores the new |
| | 158 | // coordinates back into @a pos and pointer to the cell under cursor into |
| | 159 | // @a cell and returns true. |
| | 160 | bool PhysicalCoordsToCell(wxPoint& pos, wxHtmlCell*& cell) const; |
| | 161 | |
| | 162 | // The opposite of PhysicalCoordsToCell: converts coordinates relative to |
| | 163 | // given cell to physical coordinates in the window |
| | 164 | wxPoint CellCoordsToPhysical(const wxPoint& pos, wxHtmlCell *cell) const; |
| | 165 | |
| | 166 | private: |
| | 167 | // this class caches the pre-parsed HTML to speed up display |
| | 168 | wxHtmlListBoxCache *m_cache; |
| | 169 | |
| | 170 | // HTML parser we use |
| | 171 | wxHtmlWinParser *m_htmlParser; |
| | 172 | |
| | 173 | #if wxUSE_FILESYSTEM |
| | 174 | // file system used by m_htmlParser |
| | 175 | wxFileSystem m_filesystem; |
| | 176 | #endif // wxUSE_FILESYSTEM |
| | 177 | |
| | 178 | // rendering style for the parser which allows us to customize our colours |
| | 179 | wxHtmlListBoxStyle *m_htmlRendStyle; |
| | 180 | |
| | 181 | |
| | 182 | // it calls our GetSelectedTextColour() and GetSelectedTextBgColour() |
| | 183 | friend class wxHtmlListBoxStyle; |
| | 184 | friend class wxHtmlListBoxWinInterface; |
| | 185 | |
| | 186 | |
| | 187 | DECLARE_EVENT_TABLE() |
| | 188 | DECLARE_NO_COPY_CLASS(wxHtmlListBox) |
| | 189 | }; |
| | 190 | |
| | 191 | |
| | 192 | // ---------------------------------------------------------------------------- |
| | 193 | // wxSimpleHtmlListBox |
| | 194 | // ---------------------------------------------------------------------------- |
| | 195 | |
| | 196 | #define wxHLB_DEFAULT_STYLE wxBORDER_SUNKEN |
| | 197 | #define wxHLB_MULTIPLE wxLB_MULTIPLE |
| | 198 | |
| | 199 | class WXDLLIMPEXP_HTML wxSimpleHtmlListBox : public wxHtmlListBox, |
| | 200 | public wxItemContainer |
| | 201 | { |
| | 202 | public: |
| | 203 | // wxListbox-compatible constructors |
| | 204 | // --------------------------------- |
| | 205 | |
| | 206 | wxSimpleHtmlListBox() { } |
| | 207 | |
| | 208 | wxSimpleHtmlListBox(wxWindow *parent, |
| | 209 | wxWindowID id, |
| | 210 | const wxPoint& pos = wxDefaultPosition, |
| | 211 | const wxSize& size = wxDefaultSize, |
| | 212 | int n = 0, const wxString choices[] = NULL, |
| | 213 | long style = wxHLB_DEFAULT_STYLE, |
| | 214 | const wxValidator& validator = wxDefaultValidator, |
| | 215 | const wxString& name = wxSimpleHtmlListBoxNameStr) |
| | 216 | { |
| | 217 | Create(parent, id, pos, size, n, choices, style, validator, name); |
| | 218 | } |
| | 219 | |
| | 220 | wxSimpleHtmlListBox(wxWindow *parent, |
| | 221 | wxWindowID id, |
| | 222 | const wxPoint& pos, |
| | 223 | const wxSize& size, |
| | 224 | const wxArrayString& choices, |
| | 225 | long style = wxHLB_DEFAULT_STYLE, |
| | 226 | const wxValidator& validator = wxDefaultValidator, |
| | 227 | const wxString& name = wxSimpleHtmlListBoxNameStr) |
| | 228 | { |
| | 229 | Create(parent, id, pos, size, choices, style, validator, name); |
| | 230 | } |
| | 231 | |
| | 232 | bool Create(wxWindow *parent, wxWindowID id, |
| | 233 | const wxPoint& pos = wxDefaultPosition, |
| | 234 | const wxSize& size = wxDefaultSize, |
| | 235 | int n = 0, const wxString choices[] = NULL, |
| | 236 | long style = wxHLB_DEFAULT_STYLE, |
| | 237 | const wxValidator& validator = wxDefaultValidator, |
| | 238 | const wxString& name = wxSimpleHtmlListBoxNameStr); |
| | 239 | bool Create(wxWindow *parent, wxWindowID id, |
| | 240 | const wxPoint& pos, |
| | 241 | const wxSize& size, |
| | 242 | const wxArrayString& choices, |
| | 243 | long style = wxHLB_DEFAULT_STYLE, |
| | 244 | const wxValidator& validator = wxDefaultValidator, |
| | 245 | const wxString& name = wxSimpleHtmlListBoxNameStr); |
| | 246 | |
| | 247 | virtual ~wxSimpleHtmlListBox(); |
| | 248 | |
| | 249 | // these must be overloaded otherwise the compiler will complain |
| | 250 | // about wxItemContainerImmutable::[G|S]etSelection being pure virtuals... |
| | 251 | void SetSelection(int n) |
| | 252 | { wxVListBox::SetSelection(n); } |
| | 253 | int GetSelection() const |
| | 254 | { return wxVListBox::GetSelection(); } |
| | 255 | |
| | 256 | // see ctrlsub.h for more info about this: |
| | 257 | wxCONTROL_ITEMCONTAINER_CLIENTDATAOBJECT_RECAST |
| | 258 | |
| | 259 | |
| | 260 | // accessing strings |
| | 261 | // ----------------- |
| | 262 | |
| | 263 | virtual unsigned int GetCount() const |
| | 264 | { return m_items.GetCount(); } |
| | 265 | |
| | 266 | virtual wxString GetString(unsigned int n) const; |
| | 267 | |
| | 268 | // override default unoptimized wxItemContainer::GetStrings() function |
| | 269 | wxArrayString GetStrings() const |
| | 270 | { return m_items; } |
| | 271 | |
| | 272 | virtual void SetString(unsigned int n, const wxString& s); |
| | 273 | |
| | 274 | // resolve ambiguity between wxItemContainer and wxVListBox versions |
| | 275 | void Clear(); |
| | 276 | |
| | 277 | protected: |
| | 278 | virtual int DoInsertItems(const wxArrayStringsAdapter & items, |
| | 279 | unsigned int pos, |
| | 280 | void **clientData, wxClientDataType type); |
| | 281 | |
| | 282 | virtual void DoSetItemClientData(unsigned int n, void *clientData) |
| | 283 | { m_HTMLclientData[n] = clientData; } |
| | 284 | |
| | 285 | virtual void *DoGetItemClientData(unsigned int n) const |
| | 286 | { return m_HTMLclientData[n]; } |
| | 287 | |
| | 288 | // wxItemContainer methods |
| | 289 | virtual void DoClear(); |
| | 290 | virtual void DoDeleteOneItem(unsigned int n); |
| | 291 | |
| | 292 | // calls wxHtmlListBox::SetItemCount() and RefreshAll() |
| | 293 | void UpdateCount(); |
| | 294 | |
| | 295 | // override these functions just to change their visibility: users of |
| | 296 | // wxSimpleHtmlListBox shouldn't be allowed to call them directly! |
| | 297 | virtual void SetItemCount(size_t count) |
| | 298 | { wxHtmlListBox::SetItemCount(count); } |
| | 299 | virtual void SetRowCount(size_t count) |
| | 300 | { wxHtmlListBox::SetRowCount(count); } |
| | 301 | |
| | 302 | virtual wxString OnGetItem(size_t n) const |
| | 303 | { return m_items[n]; } |
| | 304 | |
| | 305 | wxArrayString m_items; |
| | 306 | wxArrayPtrVoid m_HTMLclientData; |
| | 307 | |
| | 308 | // Note: For the benefit of old compilers (like gcc-2.8) this should |
| | 309 | // not be named m_clientdata as that clashes with the name of an |
| | 310 | // anonymous struct member in wxEvtHandler, which we derive from. |
| | 311 | |
| | 312 | DECLARE_NO_COPY_CLASS(wxSimpleHtmlListBox) |
| | 313 | }; |
| | 314 | |
| | 315 | #endif // _WX_HTMLLBOX_H_ |
| | 316 | |
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