projects / wxWidgets.git / blame
| Commit | Line | Data |
|---|---|---|
| b71e9aa4 JS |
1 | ///////////////////////////////////////////////////////////////////////////// |
| 2 | // Name: richtext/richtexthtml.cpp | |
| 3 | // Purpose: HTML I/O for wxRichTextCtrl | |
| 4 | // Author: Julian Smart | |
| 5 | // Modified by: | |
| 6 | // Created: 2005-09-30 | |
| 7 | // RCS-ID: $Id$ | |
| 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 | #if wxUSE_RICHTEXT | |
| 20 | ||
| 21 | #include "wx/richtext/richtexthtml.h" | |
| 22 | ||
| 23 | #ifndef WX_PRECOMP | |
| 24 | #include "wx/wx.h" | |
| 25 | #endif | |
| 26 | ||
| 27 | #include "wx/filename.h" | |
| 28 | #include "wx/wfstream.h" | |
| 29 | #include "wx/txtstrm.h" | |
| 30 | ||
| 31 | IMPLEMENT_DYNAMIC_CLASS(wxRichTextHTMLHandler, wxRichTextFileHandler) | |
| 32 | ||
| 33 | /// Can we handle this filename (if using files)? By default, checks the extension. | |
| 34 | bool wxRichTextHTMLHandler::CanHandle(const wxString& filename) const | |
| 35 | { | |
| 36 | wxString path, file, ext; | |
| 37 | wxSplitPath(filename, & path, & file, & ext); | |
| 38 | ||
| 39 | return (ext.Lower() == wxT("html") || ext.Lower() == wxT("htm")); | |
| 40 | } | |
| 41 | ||
| 42 | ||
| 43 | #if wxUSE_STREAMS | |
| 44 | bool wxRichTextHTMLHandler::DoLoadFile(wxRichTextBuffer *WXUNUSED(buffer), wxInputStream& WXUNUSED(stream)) | |
| 45 | { | |
| 46 | return false; | |
| 47 | } | |
| 48 | ||
| 49 | /* | |
| 50 | * We need to output only _changes_ in character formatting. | |
| 51 | */ | |
| 52 | ||
| 53 | bool wxRichTextHTMLHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream) | |
| 54 | { | |
| 55 | buffer->Defragment(); | |
| 56 | ||
| 57 | wxTextOutputStream str(stream); | |
| 58 | ||
| 59 | wxTextAttrEx currentParaStyle = buffer->GetAttributes(); | |
| 60 | wxTextAttrEx currentCharStyle = buffer->GetAttributes(); | |
| 61 | ||
| 62 | str << wxT("<html><head></head><body>\n"); | |
| 63 | ||
| 64 | wxRichTextObjectList::compatibility_iterator node = buffer->GetChildren().GetFirst(); | |
| 65 | while (node) | |
| 66 | { | |
| 67 | wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph); | |
| 68 | wxASSERT (para != NULL); | |
| 69 | ||
| 70 | if (para) | |
| 71 | { | |
| 72 | OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, true); | |
| 73 | ||
| 74 | wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst(); | |
| 75 | while (node2) | |
| 76 | { | |
| 77 | wxRichTextObject* obj = node2->GetData(); | |
| 78 | wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText); | |
| 79 | if (textObj && !textObj->IsEmpty()) | |
| 80 | { | |
| 81 | OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, true); | |
| 82 | ||
| 83 | str << textObj->GetText(); | |
| 84 | ||
| 85 | OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, false); | |
| 86 | } | |
| 87 | ||
| 88 | node2 = node2->GetNext(); | |
| 89 | } | |
| 90 | ||
| 91 | OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, false); | |
| 92 | ||
| 93 | str << wxT("<P>\n"); | |
| 94 | } | |
| 95 | ||
| 96 | node = node->GetNext(); | |
| 97 | } | |
| 98 | ||
| 99 | str << wxT("</body></html>\n"); | |
| 100 | ||
| 101 | return true; | |
| 102 | } | |
| 103 | ||
| 104 | /// Output character formatting | |
| 105 | void wxRichTextHTMLHandler::OutputCharacterFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start) | |
| 106 | { | |
| 107 | wxTextOutputStream str(stream); | |
| 108 | ||
| 109 | bool isBold = false; | |
| 110 | bool isItalic = false; | |
| 111 | bool isUnderline = false; | |
| 112 | wxString faceName; | |
| 113 | ||
| 114 | if (thisStyle.GetFont().Ok()) | |
| 115 | { | |
| 116 | if (thisStyle.GetFont().GetWeight() == wxBOLD) | |
| 117 | isBold = true; | |
| 118 | if (thisStyle.GetFont().GetStyle() == wxITALIC) | |
| 119 | isItalic = true; | |
| 120 | if (thisStyle.GetFont().GetUnderlined()) | |
| 121 | isUnderline = true; | |
| 122 | ||
| 123 | faceName = thisStyle.GetFont().GetFaceName(); | |
| 124 | } | |
| 125 | ||
| 126 | if (start) | |
| 127 | { | |
| 128 | if (isBold) | |
| 129 | str << wxT("<b>"); | |
| 130 | if (isItalic) | |
| 131 | str << wxT("<i>"); | |
| 132 | if (isUnderline) | |
| 133 | str << wxT("<u>"); | |
| 134 | } | |
| 135 | else | |
| 136 | { | |
| 137 | if (isUnderline) | |
| 138 | str << wxT("</u>"); | |
| 139 | if (isItalic) | |
| 140 | str << wxT("</i>"); | |
| 141 | if (isBold) | |
| 142 | str << wxT("</b>"); | |
| 143 | } | |
| 144 | } | |
| 145 | ||
| 146 | /// Output paragraph formatting | |
| 147 | void wxRichTextHTMLHandler::OutputParagraphFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start) | |
| 148 | { | |
| 149 | // TODO: lists, indentation (using tables), fonts, right-align, ... | |
| 150 | ||
| 151 | wxTextOutputStream str(stream); | |
| 152 | bool isCentered = false; | |
| 153 | ||
| 154 | if (thisStyle.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE) | |
| 155 | { | |
| 156 | isCentered = true; | |
| 157 | } | |
| 158 | ||
| 159 | if (start) | |
| 160 | { | |
| 161 | if (isCentered) | |
| 162 | str << wxT("<center>"); | |
| 163 | } | |
| 164 | else | |
| 165 | { | |
| 166 | if (isCentered) | |
| 167 | str << wxT("</center>"); | |
| 168 | } | |
| 169 | } | |
| 170 | ||
| 171 | #endif | |
| 172 | // wxUSE_STREAMS | |
| 173 | ||
| 174 | #endif | |
| 175 | // wxUSE_RICHTEXT | |
| 176 |