+/////////////////////////////////////////////////////////////////////////////
+// Name: richtext/richtexthtml.cpp
+// Purpose: HTML I/O for wxRichTextCtrl
+// Author: Julian Smart
+// Modified by:
+// Created: 2005-09-30
+// RCS-ID: $Id$
+// Copyright: (c) Julian Smart
+// Licence: wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#ifdef __BORLANDC__
+ #pragma hdrstop
+#endif
+
+#if wxUSE_RICHTEXT
+
+#include "wx/richtext/richtexthtml.h"
+
+#ifndef WX_PRECOMP
+ #include "wx/wx.h"
+#endif
+
+#include "wx/filename.h"
+#include "wx/wfstream.h"
+#include "wx/txtstrm.h"
+
+IMPLEMENT_DYNAMIC_CLASS(wxRichTextHTMLHandler, wxRichTextFileHandler)
+
+/// Can we handle this filename (if using files)? By default, checks the extension.
+bool wxRichTextHTMLHandler::CanHandle(const wxString& filename) const
+{
+ wxString path, file, ext;
+ wxSplitPath(filename, & path, & file, & ext);
+
+ return (ext.Lower() == wxT("html") || ext.Lower() == wxT("htm"));
+}
+
+
+#if wxUSE_STREAMS
+bool wxRichTextHTMLHandler::DoLoadFile(wxRichTextBuffer *WXUNUSED(buffer), wxInputStream& WXUNUSED(stream))
+{
+ return false;
+}
+
+/*
+ * We need to output only _changes_ in character formatting.
+ */
+
+bool wxRichTextHTMLHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream)
+{
+ buffer->Defragment();
+
+ wxTextOutputStream str(stream);
+
+ wxTextAttrEx currentParaStyle = buffer->GetAttributes();
+ wxTextAttrEx currentCharStyle = buffer->GetAttributes();
+
+ str << wxT("<html><head></head><body>\n");
+
+ wxRichTextObjectList::compatibility_iterator node = buffer->GetChildren().GetFirst();
+ while (node)
+ {
+ wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
+ wxASSERT (para != NULL);
+
+ if (para)
+ {
+ OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, true);
+
+ wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst();
+ while (node2)
+ {
+ wxRichTextObject* obj = node2->GetData();
+ wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
+ if (textObj && !textObj->IsEmpty())
+ {
+ OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, true);
+
+ str << textObj->GetText();
+
+ OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, false);
+ }
+
+ node2 = node2->GetNext();
+ }
+
+ OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, false);
+
+ str << wxT("<P>\n");
+ }
+
+ node = node->GetNext();
+ }
+
+ str << wxT("</body></html>\n");
+
+ return true;
+}
+
+/// Output character formatting
+void wxRichTextHTMLHandler::OutputCharacterFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start)
+{
+ wxTextOutputStream str(stream);
+
+ bool isBold = false;
+ bool isItalic = false;
+ bool isUnderline = false;
+ wxString faceName;
+
+ if (thisStyle.GetFont().Ok())
+ {
+ if (thisStyle.GetFont().GetWeight() == wxBOLD)
+ isBold = true;
+ if (thisStyle.GetFont().GetStyle() == wxITALIC)
+ isItalic = true;
+ if (thisStyle.GetFont().GetUnderlined())
+ isUnderline = true;
+
+ faceName = thisStyle.GetFont().GetFaceName();
+ }
+
+ if (start)
+ {
+ if (isBold)
+ str << wxT("<b>");
+ if (isItalic)
+ str << wxT("<i>");
+ if (isUnderline)
+ str << wxT("<u>");
+ }
+ else
+ {
+ if (isUnderline)
+ str << wxT("</u>");
+ if (isItalic)
+ str << wxT("</i>");
+ if (isBold)
+ str << wxT("</b>");
+ }
+}
+
+/// Output paragraph formatting
+void wxRichTextHTMLHandler::OutputParagraphFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start)
+{
+ // TODO: lists, indentation (using tables), fonts, right-align, ...
+
+ wxTextOutputStream str(stream);
+ bool isCentered = false;
+
+ if (thisStyle.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
+ {
+ isCentered = true;
+ }
+
+ if (start)
+ {
+ if (isCentered)
+ str << wxT("<center>");
+ }
+ else
+ {
+ if (isCentered)
+ str << wxT("</center>");
+ }
+}
+
+#endif
+ // wxUSE_STREAMS
+
+#endif
+ // wxUSE_RICHTEXT
+
projects / wxWidgets.git / commitdiff
