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1 | ///////////////////////////////////////////////////////////////////////////// | |
2 | // Name: richtextstyles.cpp | |
3 | // Purpose: Style management for wxRichTextCtrl | |
4 | // Author: Julian Smart | |
5 | // Modified by: | |
6 | // Created: 2005-09-30 | |
7 | // RCS-ID: | |
8 | // Copyright: (c) Julian Smart | |
9 | // Licence: wxWindows licence | |
10 | ///////////////////////////////////////////////////////////////////////////// | |
11 | ||
12 | // For compilers that support precompilation, includes "wx.h". | |
13 | #include "wx/wxprec.h" | |
14 | ||
15 | #ifdef __BORLANDC__ | |
16 | #pragma hdrstop | |
17 | #endif | |
18 | ||
19 | #ifndef WX_PRECOMP | |
20 | #include "wx/wx.h" | |
21 | #endif | |
22 | ||
23 | #include "wx/image.h" | |
24 | ||
25 | #if wxUSE_RICHTEXT | |
26 | ||
27 | #include "wx/filename.h" | |
28 | #include "wx/clipbrd.h" | |
29 | #include "wx/wfstream.h" | |
30 | #include "wx/module.h" | |
31 | ||
32 | #include "wx/richtext/richtextstyles.h" | |
33 | #include "wx/richtext/richtextctrl.h" | |
34 | ||
35 | IMPLEMENT_CLASS(wxRichTextStyleDefinition, wxObject) | |
36 | IMPLEMENT_CLASS(wxRichTextCharacterStyleDefinition, wxRichTextStyleDefinition) | |
37 | IMPLEMENT_CLASS(wxRichTextParagraphStyleDefinition, wxRichTextStyleDefinition) | |
38 | ||
39 | /*! | |
40 | * The style manager | |
41 | */ | |
42 | ||
43 | IMPLEMENT_CLASS(wxRichTextStyleSheet, wxObject) | |
44 | ||
45 | /// Initialisation | |
46 | void wxRichTextStyleSheet::Init() | |
47 | { | |
48 | } | |
49 | ||
50 | /// Add a definition to one of the style lists | |
51 | bool wxRichTextStyleSheet::AddStyle(wxList& list, wxRichTextStyleDefinition* def) | |
52 | { | |
53 | if (!list.Find(def)) | |
54 | list.Append(def); | |
55 | return true; | |
56 | } | |
57 | ||
58 | /// Remove a style | |
59 | bool wxRichTextStyleSheet::RemoveStyle(wxList& list, wxRichTextStyleDefinition* def, bool deleteStyle) | |
60 | { | |
61 | wxNode* node = list.Find(def); | |
62 | if (node) | |
63 | { | |
64 | wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData(); | |
65 | delete node; | |
66 | if (deleteStyle) | |
67 | delete def; | |
68 | return true; | |
69 | } | |
70 | else | |
71 | return false; | |
72 | } | |
73 | ||
74 | /// Find a definition by name | |
75 | wxRichTextStyleDefinition* wxRichTextStyleSheet::FindStyle(const wxList& list, const wxString& name) const | |
76 | { | |
77 | for (wxNode* node = list.GetFirst(); node; node = node->GetNext()) | |
78 | { | |
79 | wxRichTextStyleDefinition* def = (wxRichTextStyleDefinition*) node->GetData(); | |
80 | if (def->GetName().Lower() == name.Lower()) | |
81 | return def; | |
82 | } | |
83 | return NULL; | |
84 | } | |
85 | ||
86 | /// Delete all styles | |
87 | void wxRichTextStyleSheet::DeleteStyles() | |
88 | { | |
89 | WX_CLEAR_LIST(wxList, m_characterStyleDefinitions); | |
90 | WX_CLEAR_LIST(wxList, m_paragraphStyleDefinitions); | |
91 | } | |
92 | ||
93 | #if wxUSE_HTML | |
94 | /*! | |
95 | * wxRichTextStyleListBox class declaration | |
96 | * A listbox to display styles. | |
97 | */ | |
98 | ||
99 | IMPLEMENT_CLASS(wxRichTextStyleListBox, wxHtmlListBox) | |
100 | ||
101 | BEGIN_EVENT_TABLE(wxRichTextStyleListBox, wxHtmlListBox) | |
102 | EVT_LISTBOX(wxID_ANY, wxRichTextStyleListBox::OnSelect) | |
103 | EVT_LEFT_DOWN(wxRichTextStyleListBox::OnLeftDown) | |
104 | END_EVENT_TABLE() | |
105 | ||
106 | wxRichTextStyleListBox::wxRichTextStyleListBox(wxWindow* parent, wxWindowID id, const wxPoint& pos, | |
107 | const wxSize& size, long style): wxHtmlListBox(parent, id, pos, size, style) | |
108 | { | |
109 | m_styleSheet = NULL; | |
110 | m_richTextCtrl = NULL; | |
111 | } | |
112 | ||
113 | wxRichTextStyleListBox::~wxRichTextStyleListBox() | |
114 | { | |
115 | } | |
116 | ||
117 | /// Returns the HTML for this item | |
118 | wxString wxRichTextStyleListBox::OnGetItem(size_t n) const | |
119 | { | |
120 | if (!GetStyleSheet()) | |
121 | return wxEmptyString; | |
122 | ||
123 | // First paragraph styles, then character | |
124 | if (n < GetStyleSheet()->GetParagraphStyleCount()) | |
125 | { | |
126 | wxRichTextParagraphStyleDefinition* def = GetStyleSheet()->GetParagraphStyle(n); | |
127 | ||
128 | wxString str = CreateHTML(def); | |
129 | return str; | |
130 | } | |
131 | ||
132 | if ((n - GetStyleSheet()->GetParagraphStyleCount()) < GetStyleSheet()->GetCharacterStyleCount()) | |
133 | { | |
134 | wxRichTextCharacterStyleDefinition* def = GetStyleSheet()->GetCharacterStyle(n - GetStyleSheet()->GetParagraphStyleCount()); | |
135 | ||
136 | wxString str = CreateHTML(def); | |
137 | return str; | |
138 | } | |
139 | return wxEmptyString; | |
140 | } | |
141 | ||
142 | // Get style for index | |
143 | wxRichTextStyleDefinition* wxRichTextStyleListBox::GetStyle(size_t i) const | |
144 | { | |
145 | if (!GetStyleSheet()) | |
146 | return NULL; | |
147 | ||
148 | // First paragraph styles, then character | |
149 | if (i < GetStyleSheet()->GetParagraphStyleCount()) | |
150 | return GetStyleSheet()->GetParagraphStyle(i); | |
151 | ||
152 | if ((i - GetStyleSheet()->GetParagraphStyleCount()) < GetStyleSheet()->GetCharacterStyleCount()) | |
153 | return GetStyleSheet()->GetCharacterStyle(i - GetStyleSheet()->GetParagraphStyleCount()); | |
154 | ||
155 | return NULL; | |
156 | } | |
157 | ||
158 | /// Updates the list | |
159 | void wxRichTextStyleListBox::UpdateStyles() | |
160 | { | |
161 | if (GetStyleSheet()) | |
162 | { | |
163 | SetItemCount(GetStyleSheet()->GetParagraphStyleCount()+GetStyleSheet()->GetCharacterStyleCount()); | |
164 | Refresh(); | |
165 | } | |
166 | } | |
167 | ||
168 | // Convert a colour to a 6-digit hex string | |
169 | static wxString ColourToHexString(const wxColour& col) | |
170 | { | |
171 | wxString hex; | |
172 | ||
173 | hex += wxDecToHex(col.Red()); | |
174 | hex += wxDecToHex(col.Green()); | |
175 | hex += wxDecToHex(col.Blue()); | |
176 | ||
177 | return hex; | |
178 | } | |
179 | ||
180 | /// Creates a suitable HTML fragment for a definition | |
181 | wxString wxRichTextStyleListBox::CreateHTML(wxRichTextStyleDefinition* def) const | |
182 | { | |
183 | wxString str(wxT("<table><tr>")); | |
184 | ||
185 | if (def->GetStyle().GetLeftIndent() > 0) | |
186 | { | |
187 | wxClientDC dc((wxWindow*) this); | |
188 | ||
189 | str << wxT("<td width=") << ConvertTenthsMMToPixels(dc, def->GetStyle().GetLeftIndent()) << wxT("></td>"); | |
190 | } | |
191 | ||
192 | str << wxT("<td nowrap>"); | |
193 | ||
194 | int size = 5; | |
195 | ||
196 | // Standard size is 12, say | |
197 | size += 12 - def->GetStyle().GetFontSize(); | |
198 | ||
199 | str += wxT("<font"); | |
200 | ||
201 | str << wxT(" size=") << size; | |
202 | ||
203 | if (!def->GetStyle().GetFontFaceName().IsEmpty()) | |
204 | str << wxT(" face=\"") << def->GetStyle().GetFontFaceName() << wxT("\""); | |
205 | ||
206 | if (def->GetStyle().GetTextColour().Ok()) | |
207 | str << wxT(" color=\"#") << ColourToHexString(def->GetStyle().GetTextColour()) << wxT("\""); | |
208 | ||
209 | str << wxT(">"); | |
210 | ||
211 | bool hasBold = false; | |
212 | bool hasItalic = false; | |
213 | bool hasUnderline = false; | |
214 | ||
215 | if (def->GetStyle().GetFontWeight() == wxBOLD) | |
216 | hasBold = true; | |
217 | if (def->GetStyle().GetFontStyle() == wxITALIC) | |
218 | hasItalic = true; | |
219 | if (def->GetStyle().GetFontUnderlined()) | |
220 | hasUnderline = true; | |
221 | ||
222 | if (hasBold) | |
223 | str << wxT("<b>"); | |
224 | if (hasItalic) | |
225 | str << wxT("<i>"); | |
226 | if (hasUnderline) | |
227 | str << wxT("<u>"); | |
228 | ||
229 | str += def->GetName(); | |
230 | ||
231 | if (hasUnderline) | |
232 | str << wxT("</u>"); | |
233 | if (hasItalic) | |
234 | str << wxT("</i>"); | |
235 | if (hasBold) | |
236 | str << wxT("</b>"); | |
237 | ||
238 | str << wxT("</font>"); | |
239 | ||
240 | str += wxT("</td></tr></table>"); | |
241 | return str; | |
242 | } | |
243 | ||
244 | // Convert units in tends of a millimetre to device units | |
245 | int wxRichTextStyleListBox::ConvertTenthsMMToPixels(wxDC& dc, int units) const | |
246 | { | |
247 | int ppi = dc.GetPPI().x; | |
248 | ||
249 | // There are ppi pixels in 254.1 "1/10 mm" | |
250 | ||
251 | double pixels = ((double) units * (double)ppi) / 254.1; | |
252 | ||
253 | return (int) pixels; | |
254 | } | |
255 | ||
256 | /// React to selection | |
257 | void wxRichTextStyleListBox::OnSelect(wxCommandEvent& WXUNUSED(event)) | |
258 | { | |
259 | #if 0 | |
260 | wxRichTextStyleDefinition* def = GetStyle(event.GetSelection()); | |
261 | if (def) | |
262 | { | |
263 | wxMessageBox(def->GetName()); | |
264 | } | |
265 | #endif | |
266 | } | |
267 | ||
268 | void wxRichTextStyleListBox::OnLeftDown(wxMouseEvent& event) | |
269 | { | |
270 | wxVListBox::OnLeftDown(event); | |
271 | ||
272 | int item = HitTest(event.GetPosition()); | |
273 | ||
274 | if ( item != wxNOT_FOUND ) | |
275 | { | |
276 | wxRichTextStyleDefinition* def = GetStyle(item); | |
277 | if (def && GetRichTextCtrl()) | |
278 | { | |
279 | wxRichTextRange range(m_richTextCtrl->GetInsertionPoint(), m_richTextCtrl->GetInsertionPoint()); | |
280 | ||
281 | // Flags are defined within each definition, so only certain | |
282 | // attributes are applied. | |
283 | wxRichTextAttr attr(def->GetStyle()); | |
284 | ||
285 | if (m_richTextCtrl->HasSelection()) | |
286 | m_richTextCtrl->SetStyle(m_richTextCtrl->GetSelectionRange(), attr); | |
287 | else | |
288 | m_richTextCtrl->SetDefaultStyle(attr); | |
289 | ||
290 | m_richTextCtrl->SetFocus(); | |
291 | } | |
292 | } | |
293 | } | |
294 | ||
295 | #if 0 | |
296 | wxColour wxRichTextStyleListBox::GetSelectedTextColour(const wxColour& colFg) const | |
297 | { | |
298 | return *wxBLACK; | |
299 | } | |
300 | ||
301 | wxColour wxRichTextStyleListBox::GetSelectedTextBgColour(const wxColour& colBg) const | |
302 | { | |
303 | return *wxWHITE; | |
304 | } | |
305 | #endif | |
306 | ||
307 | #endif | |
308 | // wxUSE_HTML | |
309 | ||
310 | #endif | |
311 | // wxUSE_RICHTEXT | |
312 |