[wxWidgets.git] / src / richtext / richtexthtml.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/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"
#include "wx/richtext/richtextstyles.h"

#ifndef WX_PRECOMP
#endif

#include "wx/filename.h"
#include "wx/wfstream.h"
#include "wx/txtstrm.h"

#if wxUSE_FILESYSTEM
#include "wx/filesys.h"
#include "wx/fs_mem.h"
#endif

IMPLEMENT_DYNAMIC_CLASS(wxRichTextHTMLHandler, wxRichTextFileHandler)

int wxRichTextHTMLHandler::sm_fileCounter = 1;

wxRichTextHTMLHandler::wxRichTextHTMLHandler(const wxString& name, const wxString& ext, int type)
    : wxRichTextFileHandler(name, ext, type), m_buffer(NULL), m_font(false), m_inTable(false)
{
    m_fontSizeMapping.Add(8);
    m_fontSizeMapping.Add(10);
    m_fontSizeMapping.Add(13);
    m_fontSizeMapping.Add(17);
    m_fontSizeMapping.Add(22);
    m_fontSizeMapping.Add(30);
    m_fontSizeMapping.Add(100);
}

/// 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)
{
    m_buffer = buffer;

    ClearTemporaryImageLocations();

    buffer->Defragment();

    wxTextOutputStream str(stream);

    wxTextAttr currentParaStyle = buffer->GetAttributes();
    wxTextAttr currentCharStyle = buffer->GetAttributes();

    if ((GetFlags() & wxRICHTEXT_HANDLER_NO_HEADER_FOOTER) == 0)
        str << wxT("<html><head></head><body>\n");

    OutputFont(currentParaStyle, str);

    m_font = false;
    m_inTable = false;

    m_indents.Clear();
    m_listTypes.Clear();

    wxRichTextObjectList::compatibility_iterator node = buffer->GetChildren().GetFirst();
    while (node)
    {
        wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
        wxASSERT (para != NULL);

        if (para)
        {
            wxTextAttr paraStyle(para->GetCombinedAttributes());

            BeginParagraphFormatting(currentParaStyle, paraStyle, str);

            wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst();
            while (node2)
            {
                wxRichTextObject* obj = node2->GetData();
                wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
                if (textObj && !textObj->IsEmpty())
                {
                    wxTextAttr charStyle(para->GetCombinedAttributes(obj->GetAttributes()));
                    BeginCharacterFormatting(currentCharStyle, charStyle, paraStyle, str);

                    wxString text = textObj->GetText();

                    if (charStyle.HasTextEffects() && (charStyle.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
                        text.MakeUpper();

                    wxString toReplace = wxRichTextLineBreakChar;
                    text.Replace(toReplace, wxT("<br>"));

                    str << text;

                    EndCharacterFormatting(currentCharStyle, charStyle, paraStyle, str);
                }

                wxRichTextImage* image = wxDynamicCast(obj, wxRichTextImage);
                if( image && (!image->IsEmpty() || image->GetImageBlock().GetData()))
                    WriteImage( image, stream );

                node2 = node2->GetNext();
            }

            EndParagraphFormatting(currentParaStyle, paraStyle, str);

            str << wxT("\n");
        }
        node = node->GetNext();
    }

    CloseLists(-1, str);

    str << wxT("</font>");

    if ((GetFlags() & wxRICHTEXT_HANDLER_NO_HEADER_FOOTER) == 0)
        str << wxT("</body></html>");

    str << wxT("\n");

    m_buffer = NULL;

    return true;
}

void wxRichTextHTMLHandler::BeginCharacterFormatting(const wxTextAttr& currentStyle, const wxTextAttr& thisStyle, const wxTextAttr& WXUNUSED(paraStyle), wxTextOutputStream& str)
{
    wxString style;

    // Is there any change in the font properties of the item?
    if (thisStyle.GetFontFaceName() != currentStyle.GetFontFaceName())
    {
        wxString faceName(thisStyle.GetFontFaceName());
        style += wxString::Format(wxT(" face=\"%s\""), faceName.c_str());
    }
    if (thisStyle.GetFontSize() != currentStyle.GetFontSize())
        style += wxString::Format(wxT(" size=\"%ld\""), PtToSize(thisStyle.GetFontSize()));
    if (thisStyle.GetTextColour() != currentStyle.GetTextColour() )
    {
        wxString color(thisStyle.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX));
        style += wxString::Format(wxT(" color=\"%s\""), color.c_str());
    }

    if (style.size())
    {
        str << wxString::Format(wxT("<font %s >"), style.c_str());
        m_font = true;
    }

    if (thisStyle.GetFontWeight() == wxBOLD)
        str << wxT("<b>");
    if (thisStyle.GetFontStyle() == wxITALIC)
        str << wxT("<i>");
    if (thisStyle.GetFontUnderlined())
        str << wxT("<u>");

    if (thisStyle.HasURL())
        str << wxT("<a href=\"") << thisStyle.GetURL() << wxT("\">");
}

void wxRichTextHTMLHandler::EndCharacterFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, const wxTextAttr& WXUNUSED(paraStyle), wxTextOutputStream& stream)
{
    if (thisStyle.HasURL())
        stream << wxT("</a>");

    if (thisStyle.GetFontUnderlined())
        stream << wxT("</u>");
    if (thisStyle.GetFontStyle() == wxITALIC)
        stream << wxT("</i>");
    if (thisStyle.GetFontWeight() == wxBOLD)
        stream << wxT("</b>");

    if (m_font)
    {
        m_font = false;
        stream << wxT("</font>");
    }
}

/// Begin paragraph formatting
void wxRichTextHTMLHandler::BeginParagraphFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, wxTextOutputStream& str)
{
    if (thisStyle.HasPageBreak())
    {
        str << wxT("<div style=\"page-break-after:always\"></div>\n");
    }

    if (thisStyle.HasLeftIndent() && thisStyle.GetLeftIndent() != 0)
    {
        if (thisStyle.HasBulletStyle())
        {
            int indent = thisStyle.GetLeftIndent();

            // Close levels high than this
            CloseLists(indent, str);

            if (m_indents.GetCount() > 0 && indent == m_indents.Last())
            {
                // Same level, no need to start a new list
            }
            else if (m_indents.GetCount() == 0 || indent > m_indents.Last())
            {
                m_indents.Add(indent);

                wxString tag;
                int listType = TypeOfList(thisStyle, tag);
                m_listTypes.Add(listType);

                wxString align = GetAlignment(thisStyle);
                str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());

                str << tag;
            }

            str << wxT("<li> ");
        }
        else
        {
            CloseLists(-1, str);

            wxString align = GetAlignment(thisStyle);
            str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());

            // Use a table
            int indentTenthsMM = thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent();
            // TODO: convert to pixels
            int indentPixels = indentTenthsMM/4;
            str << wxString::Format(wxT("<table border=0 cellpadding=0 cellspacing=0><tr><td width=\"%d\"></td><td>"), indentPixels);

            OutputFont(thisStyle, str);

            if (thisStyle.GetLeftSubIndent() < 0)
            {
                str << SymbolicIndent( - thisStyle.GetLeftSubIndent());
            }

            m_inTable = true;
        }
    }
    else
    {
        CloseLists(-1, str);

        wxString align = GetAlignment(thisStyle);
        str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());
    }
}

/// End paragraph formatting
void wxRichTextHTMLHandler::EndParagraphFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, wxTextOutputStream& stream)
{
    if (m_inTable)
    {
        if (thisStyle.HasFont())
            stream << wxT("</font>");

        stream << wxT("</td></tr></table></p>\n");
        m_inTable = false;
    }
    else
        stream << wxT("</p>\n");
}

/// Closes lists to level (-1 means close all)
void wxRichTextHTMLHandler::CloseLists(int level, wxTextOutputStream& str)
{
    // Close levels high than this
    int i = m_indents.GetCount()-1;
    while (i >= 0)
    {
        int l = m_indents[i];
        if (l > level)
        {
            if (m_listTypes[i] == 0)
                str << wxT("</ol>");
            else
                str << wxT("</ul>");
            m_indents.RemoveAt(i);
            m_listTypes.RemoveAt(i);
        }
        else
            break;
        i --;
     }
}

/// Output font tag
void wxRichTextHTMLHandler::OutputFont(const wxTextAttr& style, wxTextOutputStream& stream)
{
    if (style.HasFont())
    {
        stream << wxString::Format(wxT("<font face=\"%s\" size=\"%ld\""), style.GetFontFaceName().c_str(), PtToSize(style.GetFontSize()));
        if (style.HasTextColour())
            stream << wxString::Format(wxT(" color=\"%s\""), style.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX).c_str());
        stream << wxT(" >");
    }
}

int wxRichTextHTMLHandler::TypeOfList( const wxTextAttr& 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.

    bool 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
    {
        tag = wxT("<ul>");
        m_is_ul = true;
    }

    if (m_is_ul)
        return 1;
    else
        return 0;
}

wxString wxRichTextHTMLHandler::GetAlignment( const wxTextAttr& 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::WriteImage(wxRichTextImage* image, wxOutputStream& stream)
{
    wxTextOutputStream str(stream);

    str << wxT("<img src=\"");

#if wxUSE_FILESYSTEM
    if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY)
    {
        if (!image->GetImage().Ok() && image->GetImageBlock().GetData())
            image->LoadFromBlock();
        if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
            image->MakeBlock();

        if (image->GetImage().Ok())
        {
            wxString ext(image->GetImageBlock().GetExtension());
            wxString tempFilename(wxString::Format(wxT("image%d.%s"), sm_fileCounter, ext));
            wxMemoryFSHandler::AddFile(tempFilename, image->GetImage(), image->GetImageBlock().GetImageType());

            m_imageLocations.Add(tempFilename);

            str << wxT("memory:") << tempFilename;
        }
        else
            str << wxT("memory:?");

        sm_fileCounter ++;
    }
    else if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES)
    {
        if (!image->GetImage().Ok() && image->GetImageBlock().GetData())
            image->LoadFromBlock();
        if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
            image->MakeBlock();

        if (image->GetImage().Ok())
        {
            wxString tempDir(GetTempDir());
            if (tempDir.IsEmpty())
                tempDir = wxFileName::GetTempDir();

            wxString ext(image->GetImageBlock().GetExtension());
            wxString tempFilename(wxString::Format(wxT("%s/image%d.%s"), tempDir, sm_fileCounter, ext));
            image->GetImageBlock().Write(tempFilename);

            m_imageLocations.Add(tempFilename);

            str << wxFileSystem::FileNameToURL(tempFilename);
        }
        else
            str << wxT("file:?");

        sm_fileCounter ++;
    }
    else // if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_BASE64) // this is implied
#endif
    {
        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::PtToSize(long size)
{
    int i;
    int len = m_fontSizeMapping.GetCount();
    for (i = 0; i < len; i++)
        if (size <= m_fontSizeMapping[i])
            return i+1;
    return 7;
}

wxString wxRichTextHTMLHandler::SymbolicIndent(long indent)
{
    wxString in;
    for(;indent > 0; indent -= 20)
        in.Append( wxT("&nbsp;") );
    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

/// Delete the in-memory or temporary files generated by the last operation
bool wxRichTextHTMLHandler::DeleteTemporaryImages()
{
    return DeleteTemporaryImages(GetFlags(), m_imageLocations);
}

/// Delete the in-memory or temporary files generated by the last operation
bool wxRichTextHTMLHandler::DeleteTemporaryImages(int flags, const wxArrayString& imageLocations)
{
    size_t i;
    for (i = 0; i < imageLocations.GetCount(); i++)
    {
        wxString location = imageLocations[i];

        if (flags & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY)
        {
#if wxUSE_FILESYSTEM
            wxMemoryFSHandler::RemoveFile(location);
#endif
        }
        else if (flags & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES)
        {
            if (wxFileExists(location))
                wxRemoveFile(location);
        }
    }

    return true;
}


#endif
// wxUSE_RICHTEXT
Commit	Line	Data
b71e9aa4	1	/////////////////////////////////////////////////////////////////////////////
40989e46	2	// Name: src/richtext/richtexthtml.cpp
b71e9aa4 JS	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__
40989e46	16	#pragma hdrstop
b71e9aa4 JS	17	#endif
	18
	19	#if wxUSE_RICHTEXT
	20
	21	#include "wx/richtext/richtexthtml.h"
50f65288	22	#include "wx/richtext/richtextstyles.h"
b71e9aa4 JS	23
b71e9aa4 JS	24	#ifndef WX_PRECOMP
b71e9aa4 JS	25	#endif
	26
	27	#include "wx/filename.h"
	28	#include "wx/wfstream.h"
	29	#include "wx/txtstrm.h"
	30
d2d0adc7 JS	31	#if wxUSE_FILESYSTEM
	32	#include "wx/filesys.h"
	33	#include "wx/fs_mem.h"
	34	#endif
	35
b71e9aa4 JS	36	IMPLEMENT_DYNAMIC_CLASS(wxRichTextHTMLHandler, wxRichTextFileHandler)
b71e9aa4 JS	37
d2d0adc7 JS	38	int wxRichTextHTMLHandler::sm_fileCounter = 1;
d2d0adc7 JS	39
50f65288 WS	40	wxRichTextHTMLHandler::wxRichTextHTMLHandler(const wxString& name, const wxString& ext, int type)
	41	: wxRichTextFileHandler(name, ext, type), m_buffer(NULL), m_font(false), m_inTable(false)
	42	{
	43	m_fontSizeMapping.Add(8);
	44	m_fontSizeMapping.Add(10);
	45	m_fontSizeMapping.Add(13);
	46	m_fontSizeMapping.Add(17);
	47	m_fontSizeMapping.Add(22);
	48	m_fontSizeMapping.Add(30);
	49	m_fontSizeMapping.Add(100);
	50	}
	51
b71e9aa4 JS	52	/// Can we handle this filename (if using files)? By default, checks the extension.
	53	bool wxRichTextHTMLHandler::CanHandle(const wxString& filename) const
	54	{
	55	wxString path, file, ext;
	56	wxSplitPath(filename, & path, & file, & ext);
	57
	58	return (ext.Lower() == wxT("html") \|\| ext.Lower() == wxT("htm"));
	59	}
	60
	61
	62	#if wxUSE_STREAMS
	63	bool wxRichTextHTMLHandler::DoLoadFile(wxRichTextBuffer *WXUNUSED(buffer), wxInputStream& WXUNUSED(stream))
	64	{
	65	return false;
	66	}
	67
	68	/*
	69	* We need to output only _changes_ in character formatting.
	70	*/
	71
	72	bool wxRichTextHTMLHandler::DoSaveFile(wxRichTextBuffer *buffer, wxOutputStream& stream)
	73	{
50f65288 WS	74	m_buffer = buffer;
50f65288 WS	75
d2d0adc7 JS	76	ClearTemporaryImageLocations();
d2d0adc7 JS	77
b71e9aa4	78	buffer->Defragment();
b72812a6	79
b71e9aa4	80	wxTextOutputStream str(stream);
40989e46	81
44cc96a8 JS	82	wxTextAttr currentParaStyle = buffer->GetAttributes();
44cc96a8 JS	83	wxTextAttr currentCharStyle = buffer->GetAttributes();
40989e46	84
b774c698 JS	85	if ((GetFlags() & wxRICHTEXT_HANDLER_NO_HEADER_FOOTER) == 0)
b774c698 JS	86	str << wxT("<html><head></head><body>\n");
40989e46	87
50f65288	88	OutputFont(currentParaStyle, str);
b72812a6	89
2dec6761	90	m_font = false;
50f65288	91	m_inTable = false;
b72812a6	92
50f65288 WS	93	m_indents.Clear();
50f65288 WS	94	m_listTypes.Clear();
40989e46	95
b71e9aa4 JS	96	wxRichTextObjectList::compatibility_iterator node = buffer->GetChildren().GetFirst();
	97	while (node)
	98	{
	99	wxRichTextParagraph* para = wxDynamicCast(node->GetData(), wxRichTextParagraph);
	100	wxASSERT (para != NULL);
40989e46	101
b71e9aa4 JS	102	if (para)
b71e9aa4 JS	103	{
44cc96a8	104	wxTextAttr paraStyle(para->GetCombinedAttributes());
b72812a6	105
50f65288	106	BeginParagraphFormatting(currentParaStyle, paraStyle, str);
40989e46	107
b71e9aa4 JS	108	wxRichTextObjectList::compatibility_iterator node2 = para->GetChildren().GetFirst();
	109	while (node2)
	110	{
	111	wxRichTextObject* obj = node2->GetData();
	112	wxRichTextPlainText* textObj = wxDynamicCast(obj, wxRichTextPlainText);
	113	if (textObj && !textObj->IsEmpty())
	114	{
44cc96a8	115	wxTextAttr charStyle(para->GetCombinedAttributes(obj->GetAttributes()));
50f65288	116	BeginCharacterFormatting(currentCharStyle, charStyle, paraStyle, str);
b72812a6	117
42688aea	118	wxString text = textObj->GetText();
40989e46	119
42688aea JS	120	if (charStyle.HasTextEffects() && (charStyle.GetTextEffects() & wxTEXT_ATTR_EFFECT_CAPITALS))
	121	text.MakeUpper();
	122
50f65288 WS	123	wxString toReplace = wxRichTextLineBreakChar;
	124	text.Replace(toReplace, wxT("<br>"));
	125
42688aea	126	str << text;
40989e46	127
50f65288	128	EndCharacterFormatting(currentCharStyle, charStyle, paraStyle, str);
b71e9aa4	129	}
40989e46	130
2dec6761	131	wxRichTextImage* image = wxDynamicCast(obj, wxRichTextImage);
020b6011	132	if( image && (!image->IsEmpty() \|\| image->GetImageBlock().GetData()))
d2d0adc7	133	WriteImage( image, stream );
40989e46	134
b71e9aa4 JS	135	node2 = node2->GetNext();
b71e9aa4 JS	136	}
50f65288 WS	137
	138	EndParagraphFormatting(currentParaStyle, paraStyle, str);
	139
d5363f57	140	str << wxT("\n");
b71e9aa4	141	}
b71e9aa4 JS	142	node = node->GetNext();
b71e9aa4 JS	143	}
b72812a6	144
50f65288	145	CloseLists(-1, str);
40989e46	146
50f65288	147	str << wxT("</font>");
b72812a6	148
b774c698 JS	149	if ((GetFlags() & wxRICHTEXT_HANDLER_NO_HEADER_FOOTER) == 0)
b774c698 JS	150	str << wxT("</body></html>");
b72812a6	151
b774c698	152	str << wxT("\n");
40989e46	153
50f65288 WS	154	m_buffer = NULL;
50f65288 WS	155
b71e9aa4 JS	156	return true;
	157	}
	158
44cc96a8	159	void wxRichTextHTMLHandler::BeginCharacterFormatting(const wxTextAttr& currentStyle, const wxTextAttr& thisStyle, const wxTextAttr& WXUNUSED(paraStyle), wxTextOutputStream& str)
b71e9aa4	160	{
2dec6761	161	wxString style;
40989e46	162
d2d0adc7	163	// Is there any change in the font properties of the item?
44cc96a8	164	if (thisStyle.GetFontFaceName() != currentStyle.GetFontFaceName())
d2d0adc7	165	{
44cc96a8	166	wxString faceName(thisStyle.GetFontFaceName());
d2d0adc7 JS	167	style += wxString::Format(wxT(" face=\"%s\""), faceName.c_str());
d2d0adc7 JS	168	}
44cc96a8 JS	169	if (thisStyle.GetFontSize() != currentStyle.GetFontSize())
44cc96a8 JS	170	style += wxString::Format(wxT(" size=\"%ld\""), PtToSize(thisStyle.GetFontSize()));
d2d0adc7 JS	171	if (thisStyle.GetTextColour() != currentStyle.GetTextColour() )
	172	{
	173	wxString color(thisStyle.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX));
	174	style += wxString::Format(wxT(" color=\"%s\""), color.c_str());
	175	}
40989e46	176
d2d0adc7	177	if (style.size())
21e354f1 JS	178	{
	179	str << wxString::Format(wxT("<font %s >"), style.c_str());
	180	m_font = true;
	181	}
40989e46	182
44cc96a8	183	if (thisStyle.GetFontWeight() == wxBOLD)
2dec6761	184	str << wxT("<b>");
44cc96a8	185	if (thisStyle.GetFontStyle() == wxITALIC)
2dec6761	186	str << wxT("<i>");
44cc96a8	187	if (thisStyle.GetFontUnderlined())
2dec6761	188	str << wxT("<u>");
b72812a6	189
d2d0adc7 JS	190	if (thisStyle.HasURL())
d2d0adc7 JS	191	str << wxT("<a href=\"") << thisStyle.GetURL() << wxT("\">");
b71e9aa4 JS	192	}
b71e9aa4 JS	193
44cc96a8	194	void wxRichTextHTMLHandler::EndCharacterFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, const wxTextAttr& WXUNUSED(paraStyle), wxTextOutputStream& stream)
b71e9aa4	195	{
d2d0adc7	196	if (thisStyle.HasURL())
50f65288	197	stream << wxT("</a>");
d2d0adc7	198
44cc96a8	199	if (thisStyle.GetFontUnderlined())
50f65288	200	stream << wxT("</u>");
44cc96a8	201	if (thisStyle.GetFontStyle() == wxITALIC)
50f65288	202	stream << wxT("</i>");
44cc96a8	203	if (thisStyle.GetFontWeight() == wxBOLD)
50f65288	204	stream << wxT("</b>");
40989e46	205
d2d0adc7	206	if (m_font)
2dec6761 JS	207	{
2dec6761 JS	208	m_font = false;
50f65288	209	stream << wxT("</font>");
2dec6761 JS	210	}
2dec6761 JS	211	}
b71e9aa4	212
50f65288	213	/// Begin paragraph formatting
44cc96a8	214	void wxRichTextHTMLHandler::BeginParagraphFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, wxTextOutputStream& str)
2dec6761	215	{
42688aea JS	216	if (thisStyle.HasPageBreak())
42688aea JS	217	{
42688aea JS	218	str << wxT("<div style=\"page-break-after:always\"></div>\n");
42688aea JS	219	}
40989e46	220
7947a11d	221	if (thisStyle.HasLeftIndent() && thisStyle.GetLeftIndent() != 0)
2dec6761	222	{
50f65288	223	if (thisStyle.HasBulletStyle())
2dec6761	224	{
50f65288 WS	225	int indent = thisStyle.GetLeftIndent();
	226
	227	// Close levels high than this
	228	CloseLists(indent, str);
b72812a6	229
50f65288 WS	230	if (m_indents.GetCount() > 0 && indent == m_indents.Last())
	231	{
	232	// Same level, no need to start a new list
	233	}
	234	else if (m_indents.GetCount() == 0 \|\| indent > m_indents.Last())
	235	{
	236	m_indents.Add(indent);
b72812a6	237
50f65288 WS	238	wxString tag;
	239	int listType = TypeOfList(thisStyle, tag);
	240	m_listTypes.Add(listType);
b72812a6	241
50f65288 WS	242	wxString align = GetAlignment(thisStyle);
50f65288 WS	243	str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());
b72812a6	244
50f65288 WS	245	str << tag;
50f65288 WS	246	}
b72812a6	247
50f65288	248	str << wxT("<li> ");
2dec6761	249	}
2dec6761 JS	250	else
2dec6761 JS	251	{
50f65288	252	CloseLists(-1, str);
b72812a6	253
50f65288 WS	254	wxString align = GetAlignment(thisStyle);
50f65288 WS	255	str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());
40989e46	256
50f65288 WS	257	// Use a table
	258	int indentTenthsMM = thisStyle.GetLeftIndent() + thisStyle.GetLeftSubIndent();
	259	// TODO: convert to pixels
	260	int indentPixels = indentTenthsMM/4;
	261	str << wxString::Format(wxT("<table border=0 cellpadding=0 cellspacing=0><tr><td width=\"%d\"></td><td>"), indentPixels);
	262
	263	OutputFont(thisStyle, str);
40989e46	264
50f65288	265	if (thisStyle.GetLeftSubIndent() < 0)
d2d0adc7	266	{
50f65288	267	str << SymbolicIndent( - thisStyle.GetLeftSubIndent());
d2d0adc7	268	}
50f65288	269
b72812a6	270	m_inTable = true;
2dec6761 JS	271	}
2dec6761 JS	272	}
50f65288 WS	273	else
	274	{
	275	CloseLists(-1, str);
	276
	277	wxString align = GetAlignment(thisStyle);
	278	str << wxString::Format(wxT("<p align=\"%s\">"), align.c_str());
b72812a6	279	}
2dec6761	280	}
50f65288 WS	281
50f65288 WS	282	/// End paragraph formatting
44cc96a8	283	void wxRichTextHTMLHandler::EndParagraphFormatting(const wxTextAttr& WXUNUSED(currentStyle), const wxTextAttr& thisStyle, wxTextOutputStream& stream)
2dec6761	284	{
50f65288	285	if (m_inTable)
2dec6761	286	{
50f65288 WS	287	if (thisStyle.HasFont())
50f65288 WS	288	stream << wxT("</font>");
b72812a6	289
c433798e	290	stream << wxT("</td></tr></table></p>\n");
50f65288	291	m_inTable = false;
2dec6761	292	}
c433798e JS	293	else
c433798e JS	294	stream << wxT("</p>\n");
2dec6761 JS	295	}
2dec6761 JS	296
50f65288 WS	297	/// Closes lists to level (-1 means close all)
	298	void wxRichTextHTMLHandler::CloseLists(int level, wxTextOutputStream& str)
	299	{
	300	// Close levels high than this
	301	int i = m_indents.GetCount()-1;
	302	while (i >= 0)
	303	{
	304	int l = m_indents[i];
	305	if (l > level)
	306	{
	307	if (m_listTypes[i] == 0)
	308	str << wxT("</ol>");
	309	else
	310	str << wxT("</ul>");
	311	m_indents.RemoveAt(i);
	312	m_listTypes.RemoveAt(i);
	313	}
	314	else
	315	break;
	316	i --;
	317	}
	318	}
	319
	320	/// Output font tag
44cc96a8	321	void wxRichTextHTMLHandler::OutputFont(const wxTextAttr& style, wxTextOutputStream& stream)
2dec6761	322	{
50f65288 WS	323	if (style.HasFont())
50f65288 WS	324	{
44cc96a8	325	stream << wxString::Format(wxT("<font face=\"%s\" size=\"%ld\""), style.GetFontFaceName().c_str(), PtToSize(style.GetFontSize()));
b72812a6 JS	326	if (style.HasTextColour())
	327	stream << wxString::Format(wxT(" color=\"%s\""), style.GetTextColour().GetAsString(wxC2S_HTML_SYNTAX).c_str());
	328	stream << wxT(" >");
50f65288	329	}
2dec6761 JS	330	}
2dec6761 JS	331
44cc96a8	332	int wxRichTextHTMLHandler::TypeOfList( const wxTextAttr& thisStyle, wxString& tag )
2dec6761	333	{
d2d0adc7 JS	334	// We can use number attribute of li tag but not all the browsers support it.
d2d0adc7 JS	335	// also wxHtmlWindow doesn't support type attribute.
40989e46	336
50f65288	337	bool m_is_ul = false;
d2d0adc7	338	if (thisStyle.GetBulletStyle() == (wxTEXT_ATTR_BULLET_STYLE_ARABIC\|wxTEXT_ATTR_BULLET_STYLE_PERIOD))
2dec6761	339	tag = wxT("<ol type=\"1\">");
d2d0adc7	340	else if (thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_LETTERS_UPPER)
2dec6761	341	tag = wxT("<ol type=\"A\">");
d2d0adc7	342	else if (thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_LETTERS_LOWER)
2dec6761	343	tag = wxT("<ol type=\"a\">");
d2d0adc7	344	else if (thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_ROMAN_UPPER)
2dec6761	345	tag = wxT("<ol type=\"I\">");
d2d0adc7	346	else if (thisStyle.GetBulletStyle() == wxTEXT_ATTR_BULLET_STYLE_ROMAN_LOWER)
2dec6761	347	tag = wxT("<ol type=\"i\">");
b71e9aa4 JS	348	else
b71e9aa4 JS	349	{
2dec6761 JS	350	tag = wxT("<ul>");
2dec6761 JS	351	m_is_ul = true;
b71e9aa4	352	}
b72812a6	353
50f65288 WS	354	if (m_is_ul)
	355	return 1;
	356	else
	357	return 0;
b71e9aa4 JS	358	}
b71e9aa4 JS	359
44cc96a8	360	wxString wxRichTextHTMLHandler::GetAlignment( const wxTextAttr& thisStyle )
2dec6761 JS	361	{
	362	switch( thisStyle.GetAlignment() )
	363	{
	364	case wxTEXT_ALIGNMENT_LEFT:
	365	return wxT("left");
	366	case wxTEXT_ALIGNMENT_RIGHT:
	367	return wxT("right");
	368	case wxTEXT_ALIGNMENT_CENTER:
	369	return wxT("center");
	370	case wxTEXT_ALIGNMENT_JUSTIFIED:
	371	return wxT("justify");
	372	default:
	373	return wxT("left");
	374	}
	375	}
	376
d2d0adc7	377	void wxRichTextHTMLHandler::WriteImage(wxRichTextImage* image, wxOutputStream& stream)
2dec6761 JS	378	{
2dec6761 JS	379	wxTextOutputStream str(stream);
40989e46	380
2dec6761	381	str << wxT("<img src=\"");
40989e46	382
d2d0adc7 JS	383	#if wxUSE_FILESYSTEM
	384	if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY)
	385	{
	386	if (!image->GetImage().Ok() && image->GetImageBlock().GetData())
	387	image->LoadFromBlock();
	388	if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
	389	image->MakeBlock();
	390
	391	if (image->GetImage().Ok())
b72812a6	392	{
d2d0adc7	393	wxString ext(image->GetImageBlock().GetExtension());
86501081	394	wxString tempFilename(wxString::Format(wxT("image%d.%s"), sm_fileCounter, ext));
d2d0adc7	395	wxMemoryFSHandler::AddFile(tempFilename, image->GetImage(), image->GetImageBlock().GetImageType());
b72812a6	396
d2d0adc7	397	m_imageLocations.Add(tempFilename);
b72812a6	398
d2d0adc7 JS	399	str << wxT("memory:") << tempFilename;
	400	}
	401	else
	402	str << wxT("memory:?");
40989e46	403
d2d0adc7 JS	404	sm_fileCounter ++;
	405	}
	406	else if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES)
	407	{
	408	if (!image->GetImage().Ok() && image->GetImageBlock().GetData())
	409	image->LoadFromBlock();
	410	if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
	411	image->MakeBlock();
	412
	413	if (image->GetImage().Ok())
b72812a6	414	{
d2d0adc7 JS	415	wxString tempDir(GetTempDir());
	416	if (tempDir.IsEmpty())
	417	tempDir = wxFileName::GetTempDir();
b72812a6	418
d2d0adc7	419	wxString ext(image->GetImageBlock().GetExtension());
86501081	420	wxString tempFilename(wxString::Format(wxT("%s/image%d.%s"), tempDir, sm_fileCounter, ext));
d2d0adc7	421	image->GetImageBlock().Write(tempFilename);
b72812a6	422
d2d0adc7	423	m_imageLocations.Add(tempFilename);
b72812a6 JS	424
b72812a6 JS	425	str << wxFileSystem::FileNameToURL(tempFilename);
d2d0adc7 JS	426	}
	427	else
	428	str << wxT("file:?");
40989e46	429
d2d0adc7 JS	430	sm_fileCounter ++;
	431	}
	432	else // if (GetFlags() & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_BASE64) // this is implied
	433	#endif
	434	{
	435	str << wxT("data:");
	436	str << GetMimeType(image->GetImageBlock().GetImageType());
	437	str << wxT(";base64,");
	438
	439	if (image->GetImage().Ok() && !image->GetImageBlock().GetData())
	440	image->MakeBlock();
	441
	442	wxChar* data = b64enc( image->GetImageBlock().GetData(), image->GetImageBlock().GetDataSize() );
	443	str << data;
	444
	445	delete[] data;
	446	}
40989e46	447
2dec6761 JS	448	str << wxT("\" />");
	449	}
	450
d2d0adc7	451	long wxRichTextHTMLHandler::PtToSize(long size)
2dec6761	452	{
50f65288 WS	453	int i;
	454	int len = m_fontSizeMapping.GetCount();
	455	for (i = 0; i < len; i++)
	456	if (size <= m_fontSizeMapping[i])
	457	return i+1;
b72812a6	458	return 7;
2dec6761 JS	459	}
	460
	461	wxString wxRichTextHTMLHandler::SymbolicIndent(long indent)
	462	{
	463	wxString in;
	464	for(;indent > 0; indent -= 20)
	465	in.Append( wxT(" ") );
	466	return in;
	467	}
	468
21e354f1	469	const wxChar* wxRichTextHTMLHandler::GetMimeType(int imageType)
2dec6761 JS	470	{
	471	switch(imageType)
	472	{
	473	case wxBITMAP_TYPE_BMP:
	474	return wxT("image/bmp");
	475	case wxBITMAP_TYPE_TIF:
	476	return wxT("image/tiff");
	477	case wxBITMAP_TYPE_GIF:
	478	return wxT("image/gif");
	479	case wxBITMAP_TYPE_PNG:
	480	return wxT("image/png");
	481	case wxBITMAP_TYPE_JPEG:
	482	return wxT("image/jpeg");
	483	default:
	484	return wxT("image/unknown");
	485	}
	486	}
	487
d2d0adc7	488	// exim-style base64 encoder
2dec6761 JS	489	wxChar* wxRichTextHTMLHandler::b64enc( unsigned char* input, size_t in_len )
2dec6761 JS	490	{
d2d0adc7 JS	491	// elements of enc64 array must be 8 bit values
	492	// otherwise encoder will fail
	493	// hmmm.. Does wxT macro define a char as 16 bit value
	494	// when compiling with UNICODE option?
21e354f1	495	static const wxChar enc64[] = wxT("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/");
2dec6761 JS	496	wxChar* output = new wxChar[4*((in_len+2)/3)+1];
2dec6761 JS	497	wxChar* p = output;
40989e46	498
2dec6761 JS	499	while( in_len-- > 0 )
	500	{
	501	register wxChar a, b;
40989e46	502
2dec6761	503	a = *input++;
40989e46	504
2dec6761	505	*p++ = enc64[ (a >> 2) & 0x3f ];
40989e46	506
07854e5e	507	if( in_len-- == 0 )
2dec6761 JS	508	{
	509	*p++ = enc64[ (a << 4 ) & 0x30 ];
	510	*p++ = '=';
	511	*p++ = '=';
	512	break;
	513	}
40989e46	514
2dec6761	515	b = *input++;
40989e46	516
2dec6761	517	*p++ = enc64[(( a << 4 ) \| ((b >> 4) &0xf )) & 0x3f];
40989e46	518
07854e5e	519	if( in_len-- == 0 )
2dec6761 JS	520	{
	521	*p++ = enc64[ (b << 2) & 0x3f ];
	522	*p++ = '=';
	523	break;
	524	}
40989e46	525
2dec6761	526	a = *input++;
40989e46	527
2dec6761	528	*p++ = enc64[ ((( b << 2 ) & 0x3f ) \| ((a >> 6)& 0x3)) & 0x3f ];
40989e46	529
2dec6761 JS	530	*p++ = enc64[ a & 0x3f ];
	531	}
	532	*p = 0;
40989e46	533
2dec6761 JS	534	return output;
2dec6761 JS	535	}
b71e9aa4	536	#endif
2dec6761	537	// wxUSE_STREAMS
b71e9aa4	538
d2d0adc7 JS	539	/// Delete the in-memory or temporary files generated by the last operation
	540	bool wxRichTextHTMLHandler::DeleteTemporaryImages()
	541	{
	542	return DeleteTemporaryImages(GetFlags(), m_imageLocations);
	543	}
	544
	545	/// Delete the in-memory or temporary files generated by the last operation
	546	bool wxRichTextHTMLHandler::DeleteTemporaryImages(int flags, const wxArrayString& imageLocations)
	547	{
	548	size_t i;
	549	for (i = 0; i < imageLocations.GetCount(); i++)
	550	{
	551	wxString location = imageLocations[i];
b72812a6	552
d2d0adc7 JS	553	if (flags & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_MEMORY)
	554	{
	555	#if wxUSE_FILESYSTEM
	556	wxMemoryFSHandler::RemoveFile(location);
	557	#endif
	558	}
	559	else if (flags & wxRICHTEXT_HANDLER_SAVE_IMAGES_TO_FILES)
	560	{
	561	if (wxFileExists(location))
	562	wxRemoveFile(location);
	563	}
	564	}
b72812a6	565
d2d0adc7 JS	566	return true;
	567	}
	568
	569
b71e9aa4	570	#endif
2dec6761	571	// wxUSE_RICHTEXT
d2d0adc7	572