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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: htmlcell.h | |
3 | // Purpose: wxHtmlCell class is used by wxHtmlWindow/wxHtmlWinParser | |
4 | // as a basic visual element of HTML page | |
5 | // Author: Vaclav Slavik | |
6 | // RCS-ID: $Id$ | |
7 | // Copyright: (c) 1999-2003 Vaclav Slavik | |
8 | // Licence: wxWindows licence | |
9 | ///////////////////////////////////////////////////////////////////////////// | |
10 | ||
11 | ||
12 | #ifndef _WX_HTMLCELL_H_ | |
13 | #define _WX_HTMLCELL_H_ | |
14 | ||
15 | #if defined(__GNUG__) && !defined(NO_GCC_PRAGMA) | |
16 | #pragma interface "htmlcell.h" | |
17 | #endif | |
18 | ||
19 | #include "wx/defs.h" | |
20 | ||
21 | #if wxUSE_HTML | |
22 | ||
23 | #include "wx/html/htmltag.h" | |
24 | #include "wx/html/htmldefs.h" | |
25 | #include "wx/window.h" | |
26 | ||
27 | ||
28 | class WXDLLIMPEXP_HTML wxHtmlLinkInfo; | |
29 | class WXDLLIMPEXP_HTML wxHtmlCell; | |
30 | class WXDLLIMPEXP_HTML wxHtmlContainerCell; | |
31 | ||
32 | ||
33 | // wxHtmlSelection is data holder with information about text selection. | |
34 | // Selection is defined by two positions (beginning and end of the selection) | |
35 | // and two leaf(!) cells at these positions. | |
36 | class WXDLLIMPEXP_HTML wxHtmlSelection | |
37 | { | |
38 | public: | |
39 | wxHtmlSelection() | |
40 | : m_fromPos(wxDefaultPosition), m_toPos(wxDefaultPosition), | |
41 | m_fromPrivPos(wxDefaultPosition), m_toPrivPos(wxDefaultPosition), | |
42 | m_fromCell(NULL), m_toCell(NULL) {} | |
43 | ||
44 | void Set(const wxPoint& fromPos, const wxHtmlCell *fromCell, | |
45 | const wxPoint& toPos, const wxHtmlCell *toCell); | |
46 | void Set(const wxHtmlCell *fromCell, const wxHtmlCell *toCell); | |
47 | ||
48 | const wxHtmlCell *GetFromCell() const { return m_fromCell; } | |
49 | const wxHtmlCell *GetToCell() const { return m_toCell; } | |
50 | ||
51 | // these values are in absolute coordinates: | |
52 | const wxPoint& GetFromPos() const { return m_fromPos; } | |
53 | const wxPoint& GetToPos() const { return m_toPos; } | |
54 | ||
55 | // these are From/ToCell's private data | |
56 | const wxPoint& GetFromPrivPos() const { return m_fromPrivPos; } | |
57 | const wxPoint& GetToPrivPos() const { return m_toPrivPos; } | |
58 | void SetFromPrivPos(const wxPoint& pos) { m_fromPrivPos = pos; } | |
59 | void SetToPrivPos(const wxPoint& pos) { m_toPrivPos = pos; } | |
60 | void ClearPrivPos() { m_toPrivPos = m_fromPrivPos = wxDefaultPosition; } | |
61 | ||
62 | bool IsEmpty() const | |
63 | { return m_fromPos == wxDefaultPosition && | |
64 | m_toPos == wxDefaultPosition; } | |
65 | ||
66 | private: | |
67 | wxPoint m_fromPos, m_toPos; | |
68 | wxPoint m_fromPrivPos, m_toPrivPos; | |
69 | const wxHtmlCell *m_fromCell, *m_toCell; | |
70 | }; | |
71 | ||
72 | ||
73 | ||
74 | enum wxHtmlSelectionState | |
75 | { | |
76 | wxHTML_SEL_OUT, // currently rendered cell is outside the selection | |
77 | wxHTML_SEL_IN, // ... is inside selection | |
78 | wxHTML_SEL_CHANGING // ... is the cell on which selection state changes | |
79 | }; | |
80 | ||
81 | // Selection state is passed to wxHtmlCell::Draw so that it can render itself | |
82 | // differently e.g. when inside text selection or outside it. | |
83 | class WXDLLIMPEXP_HTML wxHtmlRenderingState | |
84 | { | |
85 | public: | |
86 | wxHtmlRenderingState() : m_selState(wxHTML_SEL_OUT) {} | |
87 | ||
88 | void SetSelectionState(wxHtmlSelectionState s) { m_selState = s; } | |
89 | wxHtmlSelectionState GetSelectionState() const { return m_selState; } | |
90 | ||
91 | void SetFgColour(const wxColour& c) { m_fgColour = c; } | |
92 | const wxColour& GetFgColour() const { return m_fgColour; } | |
93 | void SetBgColour(const wxColour& c) { m_bgColour = c; } | |
94 | const wxColour& GetBgColour() const { return m_bgColour; } | |
95 | ||
96 | private: | |
97 | wxHtmlSelectionState m_selState; | |
98 | wxColour m_fgColour, m_bgColour; | |
99 | }; | |
100 | ||
101 | ||
102 | // HTML rendering customization. This class is used when rendering wxHtmlCells | |
103 | // as a callback: | |
104 | class WXDLLIMPEXP_HTML wxHtmlRenderingStyle | |
105 | { | |
106 | public: | |
107 | virtual ~wxHtmlRenderingStyle() {} | |
108 | virtual wxColour GetSelectedTextColour(const wxColour& clr) = 0; | |
109 | virtual wxColour GetSelectedTextBgColour(const wxColour& clr) = 0; | |
110 | }; | |
111 | ||
112 | // Standard style: | |
113 | class WXDLLIMPEXP_HTML wxDefaultHtmlRenderingStyle : public wxHtmlRenderingStyle | |
114 | { | |
115 | public: | |
116 | virtual wxColour GetSelectedTextColour(const wxColour& clr); | |
117 | virtual wxColour GetSelectedTextBgColour(const wxColour& clr); | |
118 | }; | |
119 | ||
120 | ||
121 | // Information given to cells when drawing them. Contains rendering state, | |
122 | // selection information and rendering style object that can be used to | |
123 | // customize the output. | |
124 | class WXDLLIMPEXP_HTML wxHtmlRenderingInfo | |
125 | { | |
126 | public: | |
127 | wxHtmlRenderingInfo() : m_selection(NULL), m_style(NULL) {} | |
128 | ||
129 | void SetSelection(wxHtmlSelection *s) { m_selection = s; } | |
130 | wxHtmlSelection *GetSelection() const { return m_selection; } | |
131 | ||
132 | void SetStyle(wxHtmlRenderingStyle *style) { m_style = style; } | |
133 | wxHtmlRenderingStyle& GetStyle() { return *m_style; } | |
134 | ||
135 | wxHtmlRenderingState& GetState() { return m_state; } | |
136 | ||
137 | protected: | |
138 | wxHtmlSelection *m_selection; | |
139 | wxHtmlRenderingStyle *m_style; | |
140 | wxHtmlRenderingState m_state; | |
141 | }; | |
142 | ||
143 | ||
144 | // Flags for wxHtmlCell::FindCellByPos | |
145 | enum | |
146 | { | |
147 | wxHTML_FIND_EXACT = 1, | |
148 | wxHTML_FIND_NEAREST_BEFORE = 2, | |
149 | wxHTML_FIND_NEAREST_AFTER = 4 | |
150 | }; | |
151 | ||
152 | ||
153 | ||
154 | ||
155 | // --------------------------------------------------------------------------- | |
156 | // wxHtmlCell | |
157 | // Internal data structure. It represents fragments of parsed | |
158 | // HTML page - a word, picture, table, horizontal line and so | |
159 | // on. It is used by wxHtmlWindow to represent HTML page in | |
160 | // memory. | |
161 | // --------------------------------------------------------------------------- | |
162 | ||
163 | ||
164 | class WXDLLIMPEXP_HTML wxHtmlCell : public wxObject | |
165 | { | |
166 | public: | |
167 | wxHtmlCell(); | |
168 | virtual ~wxHtmlCell(); | |
169 | ||
170 | void SetParent(wxHtmlContainerCell *p) {m_Parent = p;} | |
171 | wxHtmlContainerCell *GetParent() const {return m_Parent;} | |
172 | ||
173 | int GetPosX() const {return m_PosX;} | |
174 | int GetPosY() const {return m_PosY;} | |
175 | int GetWidth() const {return m_Width;} | |
176 | ||
177 | // Returns the maximum possible length of the cell. | |
178 | // Call Layout at least once before using GetMaxTotalWidth() | |
179 | virtual int GetMaxTotalWidth() const { return m_Width; } | |
180 | ||
181 | int GetHeight() const {return m_Height;} | |
182 | int GetDescent() const {return m_Descent;} | |
183 | ||
184 | // Formatting cells are not visible on the screen, they only alter | |
185 | // renderer's state. | |
186 | bool IsFormattingCell() const { return m_Width == 0 && m_Height == 0; } | |
187 | ||
188 | const wxString& GetId() const { return m_id; } | |
189 | void SetId(const wxString& id) { m_id = id; } | |
190 | ||
191 | // returns the link associated with this cell. The position is position | |
192 | // within the cell so it varies from 0 to m_Width, from 0 to m_Height | |
193 | virtual wxHtmlLinkInfo* GetLink(int WXUNUSED(x) = 0, | |
194 | int WXUNUSED(y) = 0) const | |
195 | { return m_Link; } | |
196 | ||
197 | // Returns cursor to be used when mouse is over the cell: | |
198 | virtual wxCursor GetCursor() const; | |
199 | ||
200 | // return next cell among parent's cells | |
201 | wxHtmlCell *GetNext() const {return m_Next;} | |
202 | // returns first child cell (if there are any, i.e. if this is container): | |
203 | virtual wxHtmlCell* GetFirstChild() const { return NULL; } | |
204 | ||
205 | // members writing methods | |
206 | virtual void SetPos(int x, int y) {m_PosX = x, m_PosY = y;} | |
207 | void SetLink(const wxHtmlLinkInfo& link); | |
208 | void SetNext(wxHtmlCell *cell) {m_Next = cell;} | |
209 | ||
210 | // 1. adjust cell's width according to the fact that maximal possible width | |
211 | // is w. (this has sense when working with horizontal lines, tables | |
212 | // etc.) | |
213 | // 2. prepare layout (=fill-in m_PosX, m_PosY (and sometime m_Height) | |
214 | // members) = place items to fit window, according to the width w | |
215 | virtual void Layout(int w); | |
216 | ||
217 | // renders the cell | |
218 | virtual void Draw(wxDC& WXUNUSED(dc), | |
219 | int WXUNUSED(x), int WXUNUSED(y), | |
220 | int WXUNUSED(view_y1), int WXUNUSED(view_y2), | |
221 | wxHtmlRenderingInfo& WXUNUSED(info)) {} | |
222 | ||
223 | // proceed drawing actions in case the cell is not visible (scrolled out of | |
224 | // screen). This is needed to change fonts, colors and so on. | |
225 | virtual void DrawInvisible(wxDC& WXUNUSED(dc), | |
226 | int WXUNUSED(x), int WXUNUSED(y), | |
227 | wxHtmlRenderingInfo& WXUNUSED(info)) {} | |
228 | ||
229 | // This method returns pointer to the FIRST cell for that | |
230 | // the condition | |
231 | // is true. It first checks if the condition is true for this | |
232 | // cell and then calls m_Next->Find(). (Note: it checks | |
233 | // all subcells if the cell is container) | |
234 | // Condition is unique condition identifier (see htmldefs.h) | |
235 | // (user-defined condition IDs should start from 10000) | |
236 | // and param is optional parameter | |
237 | // Example : m_Cell->Find(wxHTML_COND_ISANCHOR, "news"); | |
238 | // returns pointer to anchor news | |
239 | virtual const wxHtmlCell* Find(int condition, const void* param) const; | |
240 | ||
241 | // This function is called when mouse button is clicked over the cell. | |
242 | // | |
243 | // Parent is pointer to wxHtmlWindow that generated the event | |
244 | // HINT: if this handling is not enough for you you should use | |
245 | // wxHtmlWidgetCell | |
246 | virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event); | |
247 | ||
248 | // This method used to adjust pagebreak position. The parameter is variable | |
249 | // that contains y-coordinate of page break (= horizontal line that should | |
250 | // not be crossed by words, images etc.). If this cell cannot be divided | |
251 | // into two pieces (each one on another page) then it moves the pagebreak | |
252 | // few pixels up. | |
253 | // | |
254 | // Returned value : true if pagebreak was modified, false otherwise | |
255 | // Usage : while (container->AdjustPagebreak(&p)) {} | |
256 | virtual bool AdjustPagebreak(int *pagebreak, | |
257 | int *known_pagebreaks = NULL, | |
258 | int number_of_pages = 0) const; | |
259 | ||
260 | // Sets cell's behaviour on pagebreaks (see AdjustPagebreak). Default | |
261 | // is true - the cell can be split on two pages | |
262 | void SetCanLiveOnPagebreak(bool can) { m_CanLiveOnPagebreak = can; } | |
263 | ||
264 | // Can the line be broken before this cell? | |
265 | virtual bool IsLinebreakAllowed() const | |
266 | { return !IsFormattingCell(); } | |
267 | ||
268 | // Returns true for simple == terminal cells, i.e. not composite ones. | |
269 | // This if for internal usage only and may disappear in future versions! | |
270 | virtual bool IsTerminalCell() const { return true; } | |
271 | ||
272 | // Find a cell inside this cell positioned at the given coordinates | |
273 | // (relative to this's positions). Returns NULL if no such cell exists. | |
274 | // The flag can be used to specify whether to look for terminal or | |
275 | // nonterminal cells or both. In either case, returned cell is deepest | |
276 | // cell in cells tree that contains [x,y]. | |
277 | virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y, | |
278 | unsigned flags = wxHTML_FIND_EXACT) const; | |
279 | ||
280 | // Returns absolute position of the cell on HTML canvas | |
281 | wxPoint GetAbsPos() const; | |
282 | ||
283 | // Returns first (last) terminal cell inside this cell. It may return NULL, | |
284 | // but it is rare -- only if there are no terminals in the tree. | |
285 | virtual wxHtmlCell *GetFirstTerminal() const | |
286 | { return wxConstCast(this, wxHtmlCell); } | |
287 | virtual wxHtmlCell *GetLastTerminal() const | |
288 | { return wxConstCast(this, wxHtmlCell); } | |
289 | ||
290 | // Returns cell's depth, i.e. how far under the root cell it is | |
291 | // (if it is the root, depth is 0) | |
292 | unsigned GetDepth() const; | |
293 | ||
294 | // Returns true if the cell appears before 'cell' in natural order of | |
295 | // cells (= as they are read). If cell A is (grand)parent of cell B, | |
296 | // then both A.IsBefore(B) and B.IsBefore(A) always return true. | |
297 | bool IsBefore(wxHtmlCell *cell) const; | |
298 | ||
299 | // Converts the cell into text representation. If sel != NULL then | |
300 | // only part of the cell inside the selection is converted. | |
301 | virtual wxString ConvertToText(wxHtmlSelection *WXUNUSED(sel)) const | |
302 | { return wxEmptyString; } | |
303 | ||
304 | protected: | |
305 | wxHtmlCell *m_Next; | |
306 | // pointer to the next cell | |
307 | wxHtmlContainerCell *m_Parent; | |
308 | // pointer to parent cell | |
309 | long m_Width, m_Height, m_Descent; | |
310 | // dimensions of fragment | |
311 | // m_Descent is used to position text&images.. | |
312 | long m_PosX, m_PosY; | |
313 | // position where the fragment is drawn | |
314 | wxHtmlLinkInfo *m_Link; | |
315 | // destination address if this fragment is hypertext link, NULL otherwise | |
316 | bool m_CanLiveOnPagebreak; | |
317 | // true if this cell can be placed on pagebreak, false otherwise | |
318 | wxString m_id; | |
319 | // unique identifier of the cell, generated from "id" property of tags | |
320 | ||
321 | DECLARE_ABSTRACT_CLASS(wxHtmlCell) | |
322 | DECLARE_NO_COPY_CLASS(wxHtmlCell) | |
323 | }; | |
324 | ||
325 | ||
326 | ||
327 | ||
328 | // ---------------------------------------------------------------------------- | |
329 | // Inherited cells: | |
330 | // ---------------------------------------------------------------------------- | |
331 | ||
332 | ||
333 | // ---------------------------------------------------------------------------- | |
334 | // wxHtmlWordCell | |
335 | // Single word in input stream. | |
336 | // ---------------------------------------------------------------------------- | |
337 | ||
338 | class WXDLLIMPEXP_HTML wxHtmlWordCell : public wxHtmlCell | |
339 | { | |
340 | public: | |
341 | wxHtmlWordCell(const wxString& word, wxDC& dc); | |
342 | void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
343 | wxHtmlRenderingInfo& info); | |
344 | wxCursor GetCursor() const; | |
345 | wxString ConvertToText(wxHtmlSelection *sel) const; | |
346 | bool IsLinebreakAllowed() const { return m_allowLinebreak; } | |
347 | ||
348 | void SetPreviousWord(wxHtmlWordCell *cell); | |
349 | ||
350 | protected: | |
351 | void SetSelectionPrivPos(wxDC& dc, wxHtmlSelection *s) const; | |
352 | void Split(wxDC& dc, | |
353 | const wxPoint& selFrom, const wxPoint& selTo, | |
354 | unsigned& pos1, unsigned& pos2) const; | |
355 | ||
356 | wxString m_Word; | |
357 | bool m_allowLinebreak; | |
358 | ||
359 | DECLARE_ABSTRACT_CLASS(wxHtmlWordCell) | |
360 | DECLARE_NO_COPY_CLASS(wxHtmlWordCell) | |
361 | }; | |
362 | ||
363 | ||
364 | ||
365 | ||
366 | ||
367 | // Container contains other cells, thus forming tree structure of rendering | |
368 | // elements. Basic code of layout algorithm is contained in this class. | |
369 | class WXDLLIMPEXP_HTML wxHtmlContainerCell : public wxHtmlCell | |
370 | { | |
371 | public: | |
372 | wxHtmlContainerCell(wxHtmlContainerCell *parent); | |
373 | ~wxHtmlContainerCell(); | |
374 | ||
375 | virtual void Layout(int w); | |
376 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
377 | wxHtmlRenderingInfo& info); | |
378 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
379 | wxHtmlRenderingInfo& info); | |
380 | virtual bool AdjustPagebreak(int *pagebreak, int *known_pagebreaks = NULL, int number_of_pages = 0) const; | |
381 | ||
382 | // insert cell at the end of m_Cells list | |
383 | void InsertCell(wxHtmlCell *cell); | |
384 | ||
385 | // sets horizontal/vertical alignment | |
386 | void SetAlignHor(int al) {m_AlignHor = al; m_LastLayout = -1;} | |
387 | int GetAlignHor() const {return m_AlignHor;} | |
388 | void SetAlignVer(int al) {m_AlignVer = al; m_LastLayout = -1;} | |
389 | int GetAlignVer() const {return m_AlignVer;} | |
390 | ||
391 | // sets left-border indentation. units is one of wxHTML_UNITS_* constants | |
392 | // what is combination of wxHTML_INDENT_* | |
393 | void SetIndent(int i, int what, int units = wxHTML_UNITS_PIXELS); | |
394 | // returns the indentation. ind is one of wxHTML_INDENT_* constants | |
395 | int GetIndent(int ind) const; | |
396 | // returns type of value returned by GetIndent(ind) | |
397 | int GetIndentUnits(int ind) const; | |
398 | ||
399 | // sets alignment info based on given tag's params | |
400 | void SetAlign(const wxHtmlTag& tag); | |
401 | // sets floating width adjustment | |
402 | // (examples : 32 percent of parent container, | |
403 | // -15 pixels percent (this means 100 % - 15 pixels) | |
404 | void SetWidthFloat(int w, int units) {m_WidthFloat = w; m_WidthFloatUnits = units; m_LastLayout = -1;} | |
405 | void SetWidthFloat(const wxHtmlTag& tag, double pixel_scale = 1.0); | |
406 | // sets minimal height of this container. | |
407 | void SetMinHeight(int h, int align = wxHTML_ALIGN_TOP) {m_MinHeight = h; m_MinHeightAlign = align; m_LastLayout = -1;} | |
408 | ||
409 | void SetBackgroundColour(const wxColour& clr) {m_UseBkColour = true; m_BkColour = clr;} | |
410 | // returns background colour (of wxNullColour if none set), so that widgets can | |
411 | // adapt to it: | |
412 | wxColour GetBackgroundColour(); | |
413 | void SetBorder(const wxColour& clr1, const wxColour& clr2) {m_UseBorder = true; m_BorderColour1 = clr1, m_BorderColour2 = clr2;} | |
414 | virtual wxHtmlLinkInfo* GetLink(int x = 0, int y = 0) const; | |
415 | virtual const wxHtmlCell* Find(int condition, const void* param) const; | |
416 | virtual void OnMouseClick(wxWindow *parent, int x, int y, const wxMouseEvent& event); | |
417 | ||
418 | virtual wxHtmlCell* GetFirstChild() const { return m_Cells; } | |
419 | #if WXWIN_COMPATIBILITY_2_4 | |
420 | wxDEPRECATED( wxHtmlCell* GetFirstCell() const ); | |
421 | #endif | |
422 | ||
423 | // see comment in wxHtmlCell about this method | |
424 | virtual bool IsTerminalCell() const { return false; } | |
425 | ||
426 | virtual wxHtmlCell *FindCellByPos(wxCoord x, wxCoord y, | |
427 | unsigned flags = wxHTML_FIND_EXACT) const; | |
428 | ||
429 | virtual wxHtmlCell *GetFirstTerminal() const; | |
430 | virtual wxHtmlCell *GetLastTerminal() const; | |
431 | ||
432 | ||
433 | // Removes indentation on top or bottom of the container (i.e. above or | |
434 | // below first/last terminal cell). For internal use only. | |
435 | void RemoveExtraSpacing(bool top, bool bottom); | |
436 | ||
437 | // Returns the maximum possible length of the container. | |
438 | // Call Layout at least once before using GetMaxTotalWidth() | |
439 | virtual int GetMaxTotalWidth() const { return m_MaxTotalWidth; } | |
440 | ||
441 | protected: | |
442 | void UpdateRenderingStatePre(wxHtmlRenderingInfo& info, | |
443 | wxHtmlCell *cell) const; | |
444 | void UpdateRenderingStatePost(wxHtmlRenderingInfo& info, | |
445 | wxHtmlCell *cell) const; | |
446 | ||
447 | protected: | |
448 | int m_IndentLeft, m_IndentRight, m_IndentTop, m_IndentBottom; | |
449 | // indentation of subcells. There is always m_Indent pixels | |
450 | // big space between given border of the container and the subcells | |
451 | // it m_Indent < 0 it is in PERCENTS, otherwise it is in pixels | |
452 | int m_MinHeight, m_MinHeightAlign; | |
453 | // minimal height. | |
454 | wxHtmlCell *m_Cells, *m_LastCell; | |
455 | // internal cells, m_Cells points to the first of them, m_LastCell to the last one. | |
456 | // (LastCell is needed only to speed-up InsertCell) | |
457 | int m_AlignHor, m_AlignVer; | |
458 | // alignment horizontal and vertical (left, center, right) | |
459 | int m_WidthFloat, m_WidthFloatUnits; | |
460 | // width float is used in adjustWidth | |
461 | bool m_UseBkColour; | |
462 | wxColour m_BkColour; | |
463 | // background color of this container | |
464 | bool m_UseBorder; | |
465 | wxColour m_BorderColour1, m_BorderColour2; | |
466 | // borders color of this container | |
467 | int m_LastLayout; | |
468 | // if != -1 then call to Layout may be no-op | |
469 | // if previous call to Layout has same argument | |
470 | int m_MaxTotalWidth; | |
471 | // Maximum possible length if ignoring line wrap | |
472 | ||
473 | ||
474 | DECLARE_ABSTRACT_CLASS(wxHtmlContainerCell) | |
475 | DECLARE_NO_COPY_CLASS(wxHtmlContainerCell) | |
476 | }; | |
477 | ||
478 | #if WXWIN_COMPATIBILITY_2_4 | |
479 | inline wxHtmlCell* wxHtmlContainerCell::GetFirstCell() const | |
480 | { return GetFirstChild(); } | |
481 | #endif | |
482 | ||
483 | ||
484 | ||
485 | ||
486 | // --------------------------------------------------------------------------- | |
487 | // wxHtmlColourCell | |
488 | // Color changer. | |
489 | // --------------------------------------------------------------------------- | |
490 | ||
491 | class WXDLLIMPEXP_HTML wxHtmlColourCell : public wxHtmlCell | |
492 | { | |
493 | public: | |
494 | wxHtmlColourCell(const wxColour& clr, int flags = wxHTML_CLR_FOREGROUND) : wxHtmlCell() {m_Colour = clr; m_Flags = flags;} | |
495 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
496 | wxHtmlRenderingInfo& info); | |
497 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
498 | wxHtmlRenderingInfo& info); | |
499 | ||
500 | protected: | |
501 | wxColour m_Colour; | |
502 | unsigned m_Flags; | |
503 | ||
504 | DECLARE_ABSTRACT_CLASS(wxHtmlColourCell) | |
505 | DECLARE_NO_COPY_CLASS(wxHtmlColourCell) | |
506 | }; | |
507 | ||
508 | ||
509 | ||
510 | ||
511 | //-------------------------------------------------------------------------------- | |
512 | // wxHtmlFontCell | |
513 | // Sets actual font used for text rendering | |
514 | //-------------------------------------------------------------------------------- | |
515 | ||
516 | class WXDLLIMPEXP_HTML wxHtmlFontCell : public wxHtmlCell | |
517 | { | |
518 | public: | |
519 | wxHtmlFontCell(wxFont *font) : wxHtmlCell() { m_Font = (*font); } | |
520 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
521 | wxHtmlRenderingInfo& info); | |
522 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
523 | wxHtmlRenderingInfo& info); | |
524 | ||
525 | protected: | |
526 | wxFont m_Font; | |
527 | ||
528 | DECLARE_ABSTRACT_CLASS(wxHtmlFontCell) | |
529 | DECLARE_NO_COPY_CLASS(wxHtmlFontCell) | |
530 | }; | |
531 | ||
532 | ||
533 | ||
534 | ||
535 | ||
536 | ||
537 | //-------------------------------------------------------------------------------- | |
538 | // wxHtmlwidgetCell | |
539 | // This cell is connected with wxWindow object | |
540 | // You can use it to insert windows into HTML page | |
541 | // (buttons, input boxes etc.) | |
542 | //-------------------------------------------------------------------------------- | |
543 | ||
544 | class WXDLLIMPEXP_HTML wxHtmlWidgetCell : public wxHtmlCell | |
545 | { | |
546 | public: | |
547 | // !!! wnd must have correct parent! | |
548 | // if w != 0 then the m_Wnd has 'floating' width - it adjust | |
549 | // it's width according to parent container's width | |
550 | // (w is percent of parent's width) | |
551 | wxHtmlWidgetCell(wxWindow *wnd, int w = 0); | |
552 | ~wxHtmlWidgetCell() { m_Wnd->Destroy(); } | |
553 | virtual void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2, | |
554 | wxHtmlRenderingInfo& info); | |
555 | virtual void DrawInvisible(wxDC& dc, int x, int y, | |
556 | wxHtmlRenderingInfo& info); | |
557 | virtual void Layout(int w); | |
558 | ||
559 | protected: | |
560 | wxWindow* m_Wnd; | |
561 | int m_WidthFloat; | |
562 | // width float is used in adjustWidth (it is in percents) | |
563 | ||
564 | DECLARE_ABSTRACT_CLASS(wxHtmlWidgetCell) | |
565 | DECLARE_NO_COPY_CLASS(wxHtmlWidgetCell) | |
566 | }; | |
567 | ||
568 | ||
569 | ||
570 | //-------------------------------------------------------------------------------- | |
571 | // wxHtmlLinkInfo | |
572 | // Internal data structure. It represents hypertext link | |
573 | //-------------------------------------------------------------------------------- | |
574 | ||
575 | class WXDLLIMPEXP_HTML wxHtmlLinkInfo : public wxObject | |
576 | { | |
577 | public: | |
578 | wxHtmlLinkInfo() : wxObject() | |
579 | { m_Href = m_Target = wxEmptyString; m_Event = NULL, m_Cell = NULL; } | |
580 | wxHtmlLinkInfo(const wxString& href, const wxString& target = wxEmptyString) : wxObject() | |
581 | { m_Href = href; m_Target = target; m_Event = NULL, m_Cell = NULL; } | |
582 | wxHtmlLinkInfo(const wxHtmlLinkInfo& l) : wxObject() | |
583 | { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event; | |
584 | m_Cell = l.m_Cell; } | |
585 | wxHtmlLinkInfo& operator=(const wxHtmlLinkInfo& l) | |
586 | { m_Href = l.m_Href, m_Target = l.m_Target, m_Event = l.m_Event; | |
587 | m_Cell = l.m_Cell; return *this; } | |
588 | ||
589 | void SetEvent(const wxMouseEvent *e) { m_Event = e; } | |
590 | void SetHtmlCell(const wxHtmlCell *e) { m_Cell = e; } | |
591 | ||
592 | wxString GetHref() const { return m_Href; } | |
593 | wxString GetTarget() const { return m_Target; } | |
594 | const wxMouseEvent* GetEvent() const { return m_Event; } | |
595 | const wxHtmlCell* GetHtmlCell() const { return m_Cell; } | |
596 | ||
597 | private: | |
598 | wxString m_Href, m_Target; | |
599 | const wxMouseEvent *m_Event; | |
600 | const wxHtmlCell *m_Cell; | |
601 | }; | |
602 | ||
603 | ||
604 | ||
605 | // ---------------------------------------------------------------------------- | |
606 | // wxHtmlTerminalCellsInterator | |
607 | // ---------------------------------------------------------------------------- | |
608 | ||
609 | class WXDLLIMPEXP_HTML wxHtmlTerminalCellsInterator | |
610 | { | |
611 | public: | |
612 | wxHtmlTerminalCellsInterator(const wxHtmlCell *from, const wxHtmlCell *to) | |
613 | : m_to(to), m_pos(from) {} | |
614 | ||
615 | operator bool() const { return m_pos != NULL; } | |
616 | const wxHtmlCell* operator++(); | |
617 | const wxHtmlCell* operator->() const { return m_pos; } | |
618 | const wxHtmlCell* operator*() const { return m_pos; } | |
619 | ||
620 | private: | |
621 | const wxHtmlCell *m_to, *m_pos; | |
622 | }; | |
623 | ||
624 | ||
625 | ||
626 | #endif // wxUSE_HTML | |
627 | ||
628 | #endif // _WX_HTMLCELL_H_ | |
629 |