/////////////////////////////////////////////////////////////////////////////
-// Name: richtext/richtexthtml.cpp
+// Name: src/richtext/richtexthtml.cpp
// Purpose: HTML I/O for wxRichTextCtrl
// Author: Julian Smart
// Modified by:
#include "wx/wxprec.h"
#ifdef __BORLANDC__
- #pragma hdrstop
+ #pragma hdrstop
#endif
#if wxUSE_RICHTEXT
#include "wx/richtext/richtexthtml.h"
#ifndef WX_PRECOMP
- #include "wx/wx.h"
#endif
#include "wx/filename.h"
str << wxT("<html><head></head><body>\n");
+ /*
+ wxRichText may be support paper formats like a1/a2/a3/a4
+ when this widget grown enough, i should turn back and support its new features
+ but not yet
+
+ str << wxT("<table border=0 cellpadding=0 cellspacing=0><tr><td>");
+
+ wxString left_indent = SymbolicIndent(currentParaStyle.GetLeftIndent());
+ wxString right_indent = SymbolicIndent(currentParaStyle.GetRightIndent());
+
+ str << wxString::Format(wxT("%s</td><td></td><td>%s</td></tr><tr>"),
+ left_indent.c_str(), //Document-Wide Left Indent
+ right_indent.c_str()); //Document-Wide Right Indent
+
+ str << wxT("<td></td><td width=\"100%\">");
+ */
+
+ str << wxT("<table border=0 cellpadding=0 cellspacing=0><tr><td width=\"100%\">");
+
+ str << wxString::Format(wxT("<font face=\"%s\" size=\"%ld\" color=\"%s\" >"),
+ currentParaStyle.GetFont().GetFaceName().c_str(), Pt_To_Size( currentParaStyle.GetFont().GetPointSize() ),
+ currentParaStyle.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX).c_str());
+
+ //wxString align = GetAlignment( currentParaStyle.GetAlignment() );
+ //str << wxString::Format(wxT("<p align=\"%s\">"), align );
+
+ m_font = false;
+ m_indent = 0;
+ m_list = false;
+
wxRichTextObjectList::compatibility_iterator node = buffer->GetChildren().GetFirst();
while (node)
{
if (para)
{
- OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, true);
+ OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream);
wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst();
while (node2)
wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
if (textObj && !textObj->IsEmpty())
{
- OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, true);
+ BeginCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream);
str << textObj->GetText();
- OutputCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream, false);
+ EndCharacterFormatting(currentCharStyle, obj->GetAttributes(), stream);
}
+ wxRichTextImage* image = wxDynamicCast(obj, wxRichTextImage);
+ if( image && !image->IsEmpty())
+ Image_to_Base64( image, stream );
+
node2 = node2->GetNext();
}
-
- OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, false);
-
- str << wxT("<P>\n");
+ str << wxT("\n");
+ //OutputParagraphFormatting(currentParaStyle, para->GetAttributes(), stream, false);
}
-
node = node->GetNext();
}
- str << wxT("</body></html>\n");
+ str << wxT("</font></td></tr></table></body></html>\n");
return true;
}
-/// Output character formatting
-void wxRichTextHTMLHandler::OutputCharacterFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start)
+void wxRichTextHTMLHandler::BeginCharacterFormatting(const wxTextAttrEx& currentStyle, const wxTextAttrEx& thisStyle, wxOutputStream& stream)
{
wxTextOutputStream str(stream);
- bool isBold = false;
- bool isItalic = false;
- bool isUnderline = false;
- wxString faceName;
+ //Is the item bulleted one?
+ if( thisStyle.GetBulletStyle() != wxTEXT_ATTR_BULLET_STYLE_NONE )
+ {
+ //Is there any opened list?
+ if( m_list )
+ {
+ //Yes there is
+
+ //Is the item among the previous ones
+ //Is the item one of the previous list tag's child items
+ if( (thisStyle.GetLeftIndent() == (m_indent + 100)) || (thisStyle.GetLeftIndent() < 100) )
+ str << wxT("<li>");//Yes it is
+ else
+ {
+ //No it isn't
+
+ //So we should close the list tag
+ str << (m_is_ul ? wxT("</ul>") : wxT("</ol>"));
+
+ //And renavigate to new list's horizontal position
+ NavigateToListPosition(thisStyle, str);
+ //Ok it's done
+
+ //Get the appropriate tag, an ol for numerical values, an ul for dot, square etc.
+ wxString tag;
+ TypeOfList(thisStyle, tag);
+ str << tag << wxT("<li>");
+ }
+ }
+ else
+ {
+ //No there isn't a list
+
+ //navigate to new list's horizontal position(indent)
+ NavigateToListPosition(thisStyle, str);
- if (thisStyle.GetFont().Ok())
+ //Get the appropriate tag, an ol for numerical values, an ul for dot, square etc.
+ wxString tag;
+ TypeOfList(thisStyle, tag);
+ str << tag << wxT("<li>");
+
+ //Now we have a list, mark it.
+ m_list = true;
+ }
+ }
+ else if( m_list )
+ {
+ //The item is not bulleted and there is a list what should be closed now.
+ //So close the list
+
+ str << (m_is_ul ? wxT("</ul>") : wxT("</ol>"));
+ //And mark as there is no an opened list
+ m_list = false;
+ }
+
+ // does the item have an indentation ?
+ if( thisStyle.GetLeftIndent() )
+ {
+ if( thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_NONE )
+ {
+ if( m_indent )
+ {
+ if( (thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent()) == m_indent )
+ {
+ if( thisStyle.GetLeftSubIndent() < 0 )
+ {
+ str << SymbolicIndent(~thisStyle.GetLeftSubIndent());
+ }
+ }
+ else
+ {
+ if( thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent() > m_indent )
+ {
+ Indent(thisStyle, str);
+ m_indent = thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent();
+ m_indents.Add( m_indent );
+ }
+ else
+ {
+ int i = m_indents.size() - 1;
+ for(; i > -1; i--)
+ {
+ if( m_indent < (thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent()) )
+ {
+ Indent(thisStyle, str);
+ m_indent = thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent();
+ m_indents.Add( m_indent );
+
+ break;
+ }
+ else if( m_indent == (thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent()) )
+ {
+ if( thisStyle.GetLeftSubIndent() < 0 )
+ {
+ str << SymbolicIndent(~thisStyle.GetLeftSubIndent());
+ }
+ break;
+ }
+ else
+ {
+ str << wxT("</td></tr></table>");
+
+ m_indents.RemoveAt(i);
+
+ if( i < 1 ){m_indent=0; break;}
+ m_indent = m_indents[i-1];
+ }
+ }
+ }
+ }
+ }
+ else
+ {
+ Indent(thisStyle, str);
+ m_indent = thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent();
+ m_indents.Add( m_indent );
+ }
+ }
+ }
+ else if( m_indent )
{
- if (thisStyle.GetFont().GetWeight() == wxBOLD)
- isBold = true;
- if (thisStyle.GetFont().GetStyle() == wxITALIC)
- isItalic = true;
- if (thisStyle.GetFont().GetUnderlined())
- isUnderline = true;
-
- faceName = thisStyle.GetFont().GetFaceName();
+ //The item is not indented and there is a table(s) what should be closed now.
+
+ //So close them
+ for(unsigned int i = 0; i < m_indents.size(); i++ )
+ str << wxT("</td></tr></table>");
+
+ m_indent = 0;
+ m_indents.Clear();
}
- if (start)
+
+ wxString style;
+
+ //Is there any change on the font properties of the item
+ if( thisStyle.GetFont().GetFaceName() != currentStyle.GetFont().GetFaceName() )
+ style += wxString::Format(wxT(" face=\"%s\""), thisStyle.GetFont().GetFaceName().c_str());
+ if( thisStyle.GetFont().GetPointSize() != currentStyle.GetFont().GetPointSize() )
+ style += wxString::Format(wxT(" size=\"%ld\""), Pt_To_Size(thisStyle.GetFont().GetPointSize()) );
+ if( thisStyle.GetTextColour() != currentStyle.GetTextColour() )
+ style += wxString::Format(wxT(" color=\"%s\""), thisStyle.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX).c_str());
+
+ if( style.size() )
{
- if (isBold)
- str << wxT("<b>");
- if (isItalic)
- str << wxT("<i>");
- if (isUnderline)
- str << wxT("<u>");
+ str << wxString::Format(wxT("<font %s >"), style.c_str());
+ m_font = true;
}
- else
+
+ if( thisStyle.GetFont().GetWeight() == wxBOLD )
+ str << wxT("<b>");
+ if( thisStyle.GetFont().GetStyle() == wxITALIC )
+ str << wxT("<i>");
+ if( thisStyle.GetFont().GetUnderlined() )
+ str << wxT("<u>");
+}
+
+void wxRichTextHTMLHandler::EndCharacterFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream)
+{
+ wxTextOutputStream str(stream);
+
+ if( thisStyle.GetFont().GetUnderlined() )
+ str << wxT("</u>");
+ if( thisStyle.GetFont().GetStyle() == wxITALIC )
+ str << wxT("</i>");
+ if( thisStyle.GetFont().GetWeight() == wxBOLD )
+ str << wxT("</b>");
+
+ if( m_font )
{
- if (isUnderline)
- str << wxT("</u>");
- if (isItalic)
- str << wxT("</i>");
- if (isBold)
- str << wxT("</b>");
+ m_font = false;
+ str << wxT("</font>");
}
}
/// Output paragraph formatting
-void wxRichTextHTMLHandler::OutputParagraphFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream, bool start)
+void wxRichTextHTMLHandler::OutputParagraphFormatting(const wxTextAttrEx& WXUNUSED(currentStyle), const wxTextAttrEx& thisStyle, wxOutputStream& stream)
{
- // TODO: lists, indentation (using tables), fonts, right-align, ...
+ //If there is no opened list currently, insert a <p> after every paragraph
+ if(!m_list)
+ {
+ wxTextOutputStream str(stream);
+ wxString align = GetAlignment( thisStyle );
+ str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());
+ }
+}
- wxTextOutputStream str(stream);
- bool isCentered = false;
+void wxRichTextHTMLHandler::NavigateToListPosition(const wxTextAttrEx& thisStyle, wxTextOutputStream& str)
+{
+ //indenting an item using an ul/ol tag is equal to inserting 5 x on its left side.
+ //so we should start from 100 point left
- if (thisStyle.GetAlignment() == wxTEXT_ALIGNMENT_CENTRE)
+ //Is the second td's left wall of the current indentaion table at the 100+ point-left-side
+ //of the item, horizontally?
+ if( m_indent + 100 < thisStyle.GetLeftIndent() )
{
- isCentered = true;
+ //yes it is
+ LIndent(thisStyle, str);
+ m_indent = thisStyle.GetLeftIndent() - 100;
+ m_indents.Add( m_indent );
+ return;
}
+ //No it isn't
- if (start)
+ int i = m_indents.size() - 1;
+ for(; i > -1; i--)
{
- if (isCentered)
- str << wxT("<center>");
+ //Is the second td's left wall of the current indentaion table at the 100+ point-left-side
+ //of the item ?
+ if( m_indent + 100 < thisStyle.GetLeftIndent() )
+ {
+ //Yes it is
+ LIndent(thisStyle, str);
+ m_indent = thisStyle.GetLeftIndent() - 100;
+ m_indents.Add( m_indent );
+ break;
+ }
+ else if( m_indent + 100 == thisStyle.GetLeftIndent() )
+ break;//exact match
+ else
+ {
+ //No it is not, the second td's left wall of the current indentaion table is at the
+ //right side of the current item horizontally, so close it.
+ str << wxT("</td></tr></table>");
+
+ m_indents.RemoveAt(i);
+
+ if( i < 1 ){m_indent=0; break;}
+ m_indent = m_indents[i-1];
+ }
+ }
+}
+void wxRichTextHTMLHandler::Indent( const wxTextAttrEx& thisStyle, wxTextOutputStream& str )
+{
+ //As a five year experienced web developer i assure you there is no way to indent an item
+ //in html way, but we can use tables.
+
+
+
+ //Item -> "Hello world"
+ //Its Left Indentation -> 100
+ //Its Left Sub-Indentation ->40
+ //A typical indentation-table for the item will be construct as the following
+
+ //3 x nbsp = 60
+ //2 x nbsp = 40
+ //LSI = Left Sub Indent
+ //LI = Left Indent - LSI
+ //
+ //-------------------------------------------
+ //| nbsp;|nbsp;nbsp;Hello World |
+ //| | | | |
+ //| V | V |
+ //| --LI-- | --LSI-- |
+ //-------------------------------------------
+
+ str << wxT("<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>");
+
+ wxString symbolic_indent = SymbolicIndent( (thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent()) - m_indent );
+ str << wxString::Format( wxT("<td>%s</td>"), symbolic_indent.c_str() );
+ str << wxT("<td width=\"100%\">");
+
+ if( thisStyle.GetLeftSubIndent() < 0 )
+ {
+ str << SymbolicIndent(~thisStyle.GetLeftSubIndent());
}
+}
+
+void wxRichTextHTMLHandler::LIndent( const wxTextAttrEx& thisStyle, wxTextOutputStream& str )
+{
+ //Code:
+ //r.BeginNumberedBullet(1, 200, 60);
+ //r.Newline();
+ //r.WriteText(wxT("first item"));
+ //r.EndNumberedBullet();
+ //r.BeginNumberedBullet(2, 200, 60);
+ //r.Newline();
+ //r.WriteText(wxT("second item."));
+ //r.EndNumberedBullet();
+ //
+ //A typical indentation-table for the item will be construct as the following
+
+ //1 x nbsp = 20 point
+ //ULI -> 100pt (UL/OL tag indents its sub element by 100 point)
+ //<--------- 100 pt ---------->|
+ //------------------------------------------------------
+ //| nbsp; nbsp;|<ul> |
+ //| |<-ULI-><li>first item |
+ //| |<-ULI-><li>second item |
+ //| |</ul> |
+ //------------------------------------------------------
+ // |<-100->|
+
+
+ str << wxT("<table width=\"100%\" border=\"0\" cellpadding=\"0\" cellspacing=\"0\"><tr>");
+
+ wxString symbolic_indent = SymbolicIndent( (thisStyle.GetLeftIndent() - m_indent) - 100);
+ str << wxString::Format( wxT("<td>%s</td>"), symbolic_indent.c_str() );
+ str << wxT("<td width=\"100%\">");
+}
+
+void wxRichTextHTMLHandler::TypeOfList( const wxTextAttrEx& thisStyle, wxString& tag )
+{
+ //We can use number attribute of li tag but not all the browsers support it.
+ //also wxHtmlWindow doesn't support type attribute.
+
+ m_is_ul = false;
+ if( thisStyle.GetBulletStyle() == (wxTEXT_ATTR_BULLET_STYLE_ARABIC|wxTEXT_ATTR_BULLET_STYLE_PERIOD))
+ tag = wxT("<ol type=\"1\">");
+ else if( thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_LETTERS_UPPER )
+ tag = wxT("<ol type=\"A\">");
+ else if( thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_LETTERS_LOWER )
+ tag = wxT("<ol type=\"a\">");
+ else if( thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_ROMAN_UPPER )
+ tag = wxT("<ol type=\"I\">");
+ else if( thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_ROMAN_LOWER )
+ tag = wxT("<ol type=\"i\">");
else
{
- if (isCentered)
- str << wxT("</center>");
+ tag = wxT("<ul>");
+ m_is_ul = true;
+ }
+}
+
+wxString wxRichTextHTMLHandler::GetAlignment( const wxTextAttrEx& thisStyle )
+{
+ switch( thisStyle.GetAlignment() )
+ {
+ case wxTEXT_ALIGNMENT_LEFT:
+ return wxT("left");
+ case wxTEXT_ALIGNMENT_RIGHT:
+ return wxT("right");
+ case wxTEXT_ALIGNMENT_CENTER:
+ return wxT("center");
+ case wxTEXT_ALIGNMENT_JUSTIFIED:
+ return wxT("justify");
+ default:
+ return wxT("left");
}
}
+void wxRichTextHTMLHandler::Image_to_Base64(wxRichTextImage* image, wxOutputStream& stream)
+{
+ wxTextOutputStream str(stream);
+
+ str << wxT("<img src=\"");
+ str << wxT("data:");
+ str << GetMimeType(image->GetImageBlock().GetImageType());
+ str << wxT(";base64,");
+
+ if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
+ image->MakeBlock();
+
+ wxChar* data = b64enc( image->GetImageBlock().GetData(), image->GetImageBlock().GetDataSize() );
+ str << data;
+
+ delete[] data;
+
+ str << wxT("\" />");
+}
+
+long wxRichTextHTMLHandler::Pt_To_Size(long size)
+{
+ //return most approximate size
+ if(size < 9 ) return 1;
+ else if( size < 11 ) return 2;
+ else if( size < 14 ) return 3;
+ else if( size < 18 ) return 4;
+ else if( size < 23 ) return 5;
+ else if( size < 30 ) return 6;
+ else return 7;
+}
+
+wxString wxRichTextHTMLHandler::SymbolicIndent(long indent)
+{
+ wxString in;
+ for(;indent > 0; indent -= 20)
+ in.Append( wxT(" ") );
+ return in;
+}
+
+const wxChar* wxRichTextHTMLHandler::GetMimeType(int imageType)
+{
+ switch(imageType)
+ {
+ case wxBITMAP_TYPE_BMP:
+ return wxT("image/bmp");
+ case wxBITMAP_TYPE_TIF:
+ return wxT("image/tiff");
+ case wxBITMAP_TYPE_GIF:
+ return wxT("image/gif");
+ case wxBITMAP_TYPE_PNG:
+ return wxT("image/png");
+ case wxBITMAP_TYPE_JPEG:
+ return wxT("image/jpeg");
+ default:
+ return wxT("image/unknown");
+ }
+}
+
+//exim-style base64 encoder
+wxChar* wxRichTextHTMLHandler::b64enc( unsigned char* input, size_t in_len )
+{
+ //elements of enc64 array must be 8 bit values
+ //otherwise encoder will fail
+ //hmmm.. Does wxT macro define a char as 16 bit value
+ //when compiling with UNICODE option?
+ static const wxChar enc64[] = wxT("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
+ wxChar* output = new wxChar[4*((in_len+2)/3)+1];
+ wxChar* p = output;
+
+ while( in_len-- > 0 )
+ {
+ register wxChar a, b;
+
+ a = *input++;
+
+ *p++ = enc64[ (a >> 2) & 0x3f ];
+
+ if( in_len-- <= 0 )
+ {
+ *p++ = enc64[ (a << 4 ) & 0x30 ];
+ *p++ = '=';
+ *p++ = '=';
+ break;
+ }
+
+ b = *input++;
+
+ *p++ = enc64[(( a << 4 ) | ((b >> 4) &0xf )) & 0x3f];
+
+ if( in_len-- <= 0 )
+ {
+ *p++ = enc64[ (b << 2) & 0x3f ];
+ *p++ = '=';
+ break;
+ }
+
+ a = *input++;
+
+ *p++ = enc64[ ((( b << 2 ) & 0x3f ) | ((a >> 6)& 0x3)) & 0x3f ];
+
+ *p++ = enc64[ a & 0x3f ];
+ }
+ *p = 0;
+
+ return output;
+}
#endif
- // wxUSE_STREAMS
+// wxUSE_STREAMS
#endif
- // wxUSE_RICHTEXT
-
+// wxUSE_RICHTEXT
projects / wxWidgets.git / blobdiff