src/html/m_layout.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        src/html/m_layout.cpp
// Purpose:     wxHtml module for basic paragraphs/layout handling
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik
// Licence:     wxWindows licence
/////////////////////////////////////////////////////////////////////////////

#include "wx/wxprec.h"

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#if wxUSE_HTML && wxUSE_STREAMS

#ifndef WX_PRECOMP
    #include "wx/image.h"
#endif

#include "wx/html/forcelnk.h"
#include "wx/html/m_templ.h"

#include "wx/html/htmlwin.h"

FORCE_LINK_ME(m_layout)

#ifdef __WXWINCE__
    #include "wx/msw/wince/missing.h"       // for bsearch()
#else
    #include <stdlib.h>                     // bsearch()
#endif

//-----------------------------------------------------------------------------
// wxHtmlPageBreakCell
//-----------------------------------------------------------------------------

// Since html isn't a page-layout language, it doesn't support page
// page breaks directly--that requires CSS2 support. But a page-break
// facility is handy, and has been requested more than once on the
// mailing lists. This wxHtml tag handler implements just enough of
// CSS2 to support a page break by recognizing only
//   <div style="page-break-before:always">
//
// wxHtml maintains page breaks in wxHtmlPrintout::m_PageBreaks. The
// tag handler below adds appropriate offsets to that array member.
// wxHtmlDCRenderer::Render() accesses that array and makes a new page
// begin after each page-break tag.

// The page-break handler does all its work in AdjustPagebreak(). For
// all tag handlers, that function adjusts the page-break position.
// For other tags, it determines whether the html element can fit on
// the remainder of the page; if it cannot fit, but must not be split,
// then the function moves the page break provided in the argument up,
// and returns 'true' to inform the caller that the argument was
// modified.
//
// Due to its special purpose, the page-break facility differs from
// other tags. It takes up no space, but it behaves as though there is
// never enough room to fit it on the remainder of the page--it always
// forces a page break. Therefore, unlike other elements that trigger
// a page break, it would never 'fit' on the following page either.
// Therefore it's necessary to compare each pagebreak candidate to the
// array wxHtmlPrintout::m_PageBreaks of pagebreaks already set, and
// set a new one only if it's not in that array.

class wxHtmlPageBreakCell : public wxHtmlCell
{
public:
    wxHtmlPageBreakCell() {}

    bool AdjustPagebreak(int* pagebreak,
                         const wxArrayInt& known_pagebreaks,
                         int pageHeight) const;

    void Draw(wxDC& WXUNUSED(dc),
              int WXUNUSED(x), int WXUNUSED(y),
              int WXUNUSED(view_y1), int WXUNUSED(view_y2),
              wxHtmlRenderingInfo& WXUNUSED(info)) {}

private:
    wxDECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell);
};

bool
wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak,
                                     const wxArrayInt& known_pagebreaks,
                                     int WXUNUSED(pageHeight)) const
{
    // When we are counting pages, 'known_pagebreaks' is non-NULL.
    // That's the only time we change 'pagebreak'. Otherwise, pages
    // were already counted, 'known_pagebreaks' is NULL, and we don't
    // do anything except return false.
    //
    // We also simply return false if the 'pagebreak' argument is
    // less than (vertically above) or the same as the current
    // vertical position. Otherwise we'd be setting a pagebreak above
    // the current cell, which is incorrect, or duplicating a
    // pagebreak that has already been set.
    if( known_pagebreaks.GetCount() == 0 || *pagebreak <= m_PosY)
    {
        return false;
    }

    // m_PosY is only the vertical offset from the parent. The pagebreak
    // required here is the total page offset, so m_PosY must be added
    // to the parent's offset and height.
    int total_height = m_PosY;
    for ( wxHtmlCell *parent = GetParent(); parent; parent = parent->GetParent() )
    {
        total_height += parent->GetPosY();
    }


    // Search the array of pagebreaks to see whether we've already set
    // a pagebreak here.
    int where = known_pagebreaks.Index( total_height);
    // Add a pagebreak only if there isn't one already set here.
    if( wxNOT_FOUND != where)
    {
        return false;
    }
    else
    {
        *pagebreak = m_PosY;
        return true;
    }
}


TAG_HANDLER_BEGIN(P, "P")
    TAG_HANDLER_CONSTR(P) { }

    TAG_HANDLER_PROC(tag)
    {
        if (m_WParser->GetContainer()->GetFirstChild() != NULL)
        {
            m_WParser->CloseContainer();
            m_WParser->OpenContainer();
        }
        m_WParser->GetContainer()->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
        m_WParser->GetContainer()->SetAlign(tag);
        return false;
    }

TAG_HANDLER_END(P)


TAG_HANDLER_BEGIN(BR, "BR")
    TAG_HANDLER_CONSTR(BR) { }

    TAG_HANDLER_PROC(tag)
    {
        int al = m_WParser->GetContainer()->GetAlignHor();
        wxHtmlContainerCell *c;

        m_WParser->CloseContainer();
        c = m_WParser->OpenContainer();
        c->SetAlignHor(al);
        c->SetAlign(tag);
        c->SetMinHeight(m_WParser->GetCharHeight());
        return false;
    }

TAG_HANDLER_END(BR)


TAG_HANDLER_BEGIN(CENTER, "CENTER")
    TAG_HANDLER_CONSTR(CENTER) { }

    TAG_HANDLER_PROC(tag)
    {
        int old = m_WParser->GetAlign();
        wxHtmlContainerCell *c = m_WParser->GetContainer();

        m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
        if (c->GetFirstChild() != NULL)
        {
            m_WParser->CloseContainer();
            m_WParser->OpenContainer();
        }
        else
            c->SetAlignHor(wxHTML_ALIGN_CENTER);

        if (tag.HasEnding())
        {
            ParseInner(tag);

            m_WParser->SetAlign(old);
            if (c->GetFirstChild() != NULL)
            {
                m_WParser->CloseContainer();
                m_WParser->OpenContainer();
            }
            else
                c->SetAlignHor(old);

            return true;
        }
        else return false;
    }

TAG_HANDLER_END(CENTER)


TAG_HANDLER_BEGIN(DIV, "DIV")
    TAG_HANDLER_CONSTR(DIV) { }

    TAG_HANDLER_PROC(tag)
    {
        if(tag.HasParam(wxT("STYLE")))
        {
            if(tag.GetParam(wxT("STYLE")).IsSameAs(wxT("PAGE-BREAK-BEFORE:ALWAYS"), false))
            {
                m_WParser->CloseContainer();
                m_WParser->OpenContainer()->InsertCell(new wxHtmlPageBreakCell);
                m_WParser->CloseContainer();
                m_WParser->OpenContainer();
                return false;
            }
            else
            {
                // Treat other STYLE parameters here when they're supported.
                return false;
            }
        }
        else if(tag.HasParam(wxT("ALIGN")))
        {
            int old = m_WParser->GetAlign();
            wxHtmlContainerCell *c = m_WParser->GetContainer();
            if (c->GetFirstChild() != NULL)
            {
                m_WParser->CloseContainer();
                m_WParser->OpenContainer();
                c = m_WParser->GetContainer();
                c->SetAlign(tag);
                m_WParser->SetAlign(c->GetAlignHor());
            }
            else
            {
                c->SetAlign(tag);
                m_WParser->SetAlign(c->GetAlignHor());
            }

            ParseInner(tag);

            m_WParser->SetAlign(old);
            if (c->GetFirstChild() != NULL)
            {
                m_WParser->CloseContainer();
                m_WParser->OpenContainer();
            }
            else
                c->SetAlignHor(old);

            return true;
        }
        else
        {
            // Same as BR
            int al = m_WParser->GetContainer()->GetAlignHor();
            wxHtmlContainerCell *c;

            m_WParser->CloseContainer();
            c = m_WParser->OpenContainer();
            c->SetAlignHor(al);
            c->SetAlign(tag);
            c->SetMinHeight(m_WParser->GetCharHeight());
            return false;
        }
    }

TAG_HANDLER_END(DIV)


TAG_HANDLER_BEGIN(TITLE, "TITLE")
    TAG_HANDLER_CONSTR(TITLE) { }

    TAG_HANDLER_PROC(tag)
    {
        wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
        if (winIface)
        {
            wxString title(tag.GetBeginIter(), tag.GetEndIter1());
#if !wxUSE_UNICODE
            const wxFontEncoding enc = m_WParser->GetInputEncoding();
            if ( enc != wxFONTENCODING_DEFAULT )
            {
                // need to convert to the current one
                title = wxString(title.wc_str(wxCSConv(enc)), wxConvLocal);
            }
#endif // !wxUSE_UNICODE

            title = m_WParser->GetEntitiesParser()->Parse(title);

            winIface->SetHTMLWindowTitle(title);
        }
        return true;
    }

TAG_HANDLER_END(TITLE)


TAG_HANDLER_BEGIN(BODY, "BODY")
    TAG_HANDLER_CONSTR(BODY) { }

    TAG_HANDLER_PROC(tag)
    {
        wxColour clr;

        if (tag.GetParamAsColour(wxT("TEXT"), &clr))
        {
            m_WParser->SetActualColor(clr);
            m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
        }

        if (tag.GetParamAsColour(wxT("LINK"), &clr))
            m_WParser->SetLinkColor(clr);

        wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
        // the rest of this function requires a window:
        if ( !winIface )
            return false;

        if (tag.HasParam(wxT("BACKGROUND")))
        {
            wxFSFile *fileBgImage = m_WParser->OpenURL
                                               (
                                                wxHTML_URL_IMAGE,
                                                tag.GetParam(wxT("BACKGROUND"))
                                               );
            if ( fileBgImage )
            {
                wxInputStream *is = fileBgImage->GetStream();
                if ( is )
                {
                    wxImage image(*is);
                    if ( image.IsOk() )
                        winIface->SetHTMLBackgroundImage(image);
                }

                delete fileBgImage;
            }
        }

        if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
        {
            m_WParser->GetContainer()->InsertCell(
                new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
            winIface->SetHTMLBackgroundColour(clr);
        }

        return false;
    }

TAG_HANDLER_END(BODY)


TAG_HANDLER_BEGIN(BLOCKQUOTE, "BLOCKQUOTE")
    TAG_HANDLER_CONSTR(BLOCKQUOTE) { }

    TAG_HANDLER_PROC(tag)
    {
        wxHtmlContainerCell *c;

        m_WParser->CloseContainer();
        c = m_WParser->OpenContainer();

        if (c->GetAlignHor() == wxHTML_ALIGN_RIGHT)
            c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_RIGHT);
        else
            c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);

        c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
        m_WParser->OpenContainer();
        ParseInner(tag);
        c = m_WParser->CloseContainer();
        c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_BOTTOM);
        m_WParser->CloseContainer();
        m_WParser->OpenContainer();
        return true;
    }

TAG_HANDLER_END(BLOCKQUOTE)


TAG_HANDLER_BEGIN(SUBSUP, "SUB,SUP")

    TAG_HANDLER_PROC(tag)
    {
        bool issub = (tag.GetName() == wxT("SUB"));
        wxHtmlScriptMode oldmode = m_WParser->GetScriptMode();
        int oldbase = m_WParser->GetScriptBaseline();
        int oldsize = m_WParser->GetFontSize();

        wxHtmlContainerCell *cont = m_WParser->GetContainer();
        wxHtmlCell *c = cont->GetLastChild();

        m_WParser->SetScriptMode(issub ? wxHTML_SCRIPT_SUB : wxHTML_SCRIPT_SUP);
        m_WParser->SetScriptBaseline(
                oldbase + c ? c->GetScriptBaseline() : 0);

        // select smaller font
        m_WParser->SetFontSize(m_WParser->GetFontSize()-2);
        cont->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));

        ParseInner(tag);

        // restore font size
        m_WParser->SetFontSize(oldsize);
        m_WParser->GetContainer()->InsertCell(
            new wxHtmlFontCell(m_WParser->CreateCurrentFont()));

        // restore base and alignment
        m_WParser->SetScriptBaseline(oldbase);
        m_WParser->SetScriptMode(oldmode);

        return true;
    }

TAG_HANDLER_END(SUBSUP)


// Tag handler for tags that we have to ignore, otherwise non-text data
// would show up as text:
TAG_HANDLER_BEGIN(DoNothing, "SCRIPT")
    TAG_HANDLER_CONSTR(DoNothing) { }

    TAG_HANDLER_PROC(WXUNUSED(tag))
    {
        return true;
    }
TAG_HANDLER_END(DoNothing)


TAGS_MODULE_BEGIN(Layout)

    TAGS_MODULE_ADD(P)
    TAGS_MODULE_ADD(BR)
    TAGS_MODULE_ADD(CENTER)
    TAGS_MODULE_ADD(DIV)
    TAGS_MODULE_ADD(TITLE)
    TAGS_MODULE_ADD(BODY)
    TAGS_MODULE_ADD(BLOCKQUOTE)
    TAGS_MODULE_ADD(SUBSUP)
    TAGS_MODULE_ADD(DoNothing)

TAGS_MODULE_END(Layout)

#endif
Commit	Line	Data
	1	/////////////////////////////////////////////////////////////////////////////
	2	// Name: src/html/m_layout.cpp
	3	// Purpose: wxHtml module for basic paragraphs/layout handling
	4	// Author: Vaclav Slavik
	5	// RCS-ID: $Id$
	6	// Copyright: (c) 1999 Vaclav Slavik
	7	// Licence: wxWindows licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
	10	#include "wx/wxprec.h"
	11
	12	#ifdef __BORLANDC__
	13	#pragma hdrstop
	14	#endif
	15
	16	#if wxUSE_HTML && wxUSE_STREAMS
	17
	18	#ifndef WX_PRECOMP
	19	#include "wx/image.h"
	20	#endif
	21
	22	#include "wx/html/forcelnk.h"
	23	#include "wx/html/m_templ.h"
	24
	25	#include "wx/html/htmlwin.h"
	26
	27	FORCE_LINK_ME(m_layout)
	28
	29	#ifdef __WXWINCE__
	30	#include "wx/msw/wince/missing.h" // for bsearch()
	31	#else
	32	#include <stdlib.h> // bsearch()
	33	#endif
	34
	35	//-----------------------------------------------------------------------------
	36	// wxHtmlPageBreakCell
	37	//-----------------------------------------------------------------------------
	38
	39	// Since html isn't a page-layout language, it doesn't support page
	40	// page breaks directly--that requires CSS2 support. But a page-break
	41	// facility is handy, and has been requested more than once on the
	42	// mailing lists. This wxHtml tag handler implements just enough of
	43	// CSS2 to support a page break by recognizing only
	44	// <div style="page-break-before:always">
	45	//
	46	// wxHtml maintains page breaks in wxHtmlPrintout::m_PageBreaks. The
	47	// tag handler below adds appropriate offsets to that array member.
	48	// wxHtmlDCRenderer::Render() accesses that array and makes a new page
	49	// begin after each page-break tag.
	50
	51	// The page-break handler does all its work in AdjustPagebreak(). For
	52	// all tag handlers, that function adjusts the page-break position.
	53	// For other tags, it determines whether the html element can fit on
	54	// the remainder of the page; if it cannot fit, but must not be split,
	55	// then the function moves the page break provided in the argument up,
	56	// and returns 'true' to inform the caller that the argument was
	57	// modified.
	58	//
	59	// Due to its special purpose, the page-break facility differs from
	60	// other tags. It takes up no space, but it behaves as though there is
	61	// never enough room to fit it on the remainder of the page--it always
	62	// forces a page break. Therefore, unlike other elements that trigger
	63	// a page break, it would never 'fit' on the following page either.
	64	// Therefore it's necessary to compare each pagebreak candidate to the
	65	// array wxHtmlPrintout::m_PageBreaks of pagebreaks already set, and
	66	// set a new one only if it's not in that array.
	67
	68	class wxHtmlPageBreakCell : public wxHtmlCell
	69	{
	70	public:
	71	wxHtmlPageBreakCell() {}
	72
	73	bool AdjustPagebreak(int* pagebreak,
	74	const wxArrayInt& known_pagebreaks,
	75	int pageHeight) const;
	76
	77	void Draw(wxDC& WXUNUSED(dc),
	78	int WXUNUSED(x), int WXUNUSED(y),
	79	int WXUNUSED(view_y1), int WXUNUSED(view_y2),
	80	wxHtmlRenderingInfo& WXUNUSED(info)) {}
	81
	82	private:
	83	wxDECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell);
	84	};
	85
	86	bool
	87	wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak,
	88	const wxArrayInt& known_pagebreaks,
	89	int WXUNUSED(pageHeight)) const
	90	{
	91	// When we are counting pages, 'known_pagebreaks' is non-NULL.
	92	// That's the only time we change 'pagebreak'. Otherwise, pages
	93	// were already counted, 'known_pagebreaks' is NULL, and we don't
	94	// do anything except return false.
	95	//
	96	// We also simply return false if the 'pagebreak' argument is
	97	// less than (vertically above) or the same as the current
	98	// vertical position. Otherwise we'd be setting a pagebreak above
	99	// the current cell, which is incorrect, or duplicating a
	100	// pagebreak that has already been set.
	101	if( known_pagebreaks.GetCount() == 0 \|\| *pagebreak <= m_PosY)
	102	{
	103	return false;
	104	}
	105
	106	// m_PosY is only the vertical offset from the parent. The pagebreak
	107	// required here is the total page offset, so m_PosY must be added
	108	// to the parent's offset and height.
	109	int total_height = m_PosY;
	110	for ( wxHtmlCell *parent = GetParent(); parent; parent = parent->GetParent() )
	111	{
	112	total_height += parent->GetPosY();
	113	}
	114
	115
	116	// Search the array of pagebreaks to see whether we've already set
	117	// a pagebreak here.
	118	int where = known_pagebreaks.Index( total_height);
	119	// Add a pagebreak only if there isn't one already set here.
	120	if( wxNOT_FOUND != where)
	121	{
	122	return false;
	123	}
	124	else
	125	{
	126	*pagebreak = m_PosY;
	127	return true;
	128	}
	129	}
	130
	131
	132
	133	TAG_HANDLER_BEGIN(P, "P")
	134	TAG_HANDLER_CONSTR(P) { }
	135
	136	TAG_HANDLER_PROC(tag)
	137	{
	138	if (m_WParser->GetContainer()->GetFirstChild() != NULL)
	139	{
	140	m_WParser->CloseContainer();
	141	m_WParser->OpenContainer();
	142	}
	143	m_WParser->GetContainer()->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	144	m_WParser->GetContainer()->SetAlign(tag);
	145	return false;
	146	}
	147
	148	TAG_HANDLER_END(P)
	149
	150
	151
	152	TAG_HANDLER_BEGIN(BR, "BR")
	153	TAG_HANDLER_CONSTR(BR) { }
	154
	155	TAG_HANDLER_PROC(tag)
	156	{
	157	int al = m_WParser->GetContainer()->GetAlignHor();
	158	wxHtmlContainerCell *c;
	159
	160	m_WParser->CloseContainer();
	161	c = m_WParser->OpenContainer();
	162	c->SetAlignHor(al);
	163	c->SetAlign(tag);
	164	c->SetMinHeight(m_WParser->GetCharHeight());
	165	return false;
	166	}
	167
	168	TAG_HANDLER_END(BR)
	169
	170
	171
	172	TAG_HANDLER_BEGIN(CENTER, "CENTER")
	173	TAG_HANDLER_CONSTR(CENTER) { }
	174
	175	TAG_HANDLER_PROC(tag)
	176	{
	177	int old = m_WParser->GetAlign();
	178	wxHtmlContainerCell *c = m_WParser->GetContainer();
	179
	180	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
	181	if (c->GetFirstChild() != NULL)
	182	{
	183	m_WParser->CloseContainer();
	184	m_WParser->OpenContainer();
	185	}
	186	else
	187	c->SetAlignHor(wxHTML_ALIGN_CENTER);
	188
	189	if (tag.HasEnding())
	190	{
	191	ParseInner(tag);
	192
	193	m_WParser->SetAlign(old);
	194	if (c->GetFirstChild() != NULL)
	195	{
	196	m_WParser->CloseContainer();
	197	m_WParser->OpenContainer();
	198	}
	199	else
	200	c->SetAlignHor(old);
	201
	202	return true;
	203	}
	204	else return false;
	205	}
	206
	207	TAG_HANDLER_END(CENTER)
	208
	209
	210
	211	TAG_HANDLER_BEGIN(DIV, "DIV")
	212	TAG_HANDLER_CONSTR(DIV) { }
	213
	214	TAG_HANDLER_PROC(tag)
	215	{
	216	if(tag.HasParam(wxT("STYLE")))
	217	{
	218	if(tag.GetParam(wxT("STYLE")).IsSameAs(wxT("PAGE-BREAK-BEFORE:ALWAYS"), false))
	219	{
	220	m_WParser->CloseContainer();
	221	m_WParser->OpenContainer()->InsertCell(new wxHtmlPageBreakCell);
	222	m_WParser->CloseContainer();
	223	m_WParser->OpenContainer();
	224	return false;
	225	}
	226	else
	227	{
	228	// Treat other STYLE parameters here when they're supported.
	229	return false;
	230	}
	231	}
	232	else if(tag.HasParam(wxT("ALIGN")))
	233	{
	234	int old = m_WParser->GetAlign();
	235	wxHtmlContainerCell *c = m_WParser->GetContainer();
	236	if (c->GetFirstChild() != NULL)
	237	{
	238	m_WParser->CloseContainer();
	239	m_WParser->OpenContainer();
	240	c = m_WParser->GetContainer();
	241	c->SetAlign(tag);
	242	m_WParser->SetAlign(c->GetAlignHor());
	243	}
	244	else
	245	{
	246	c->SetAlign(tag);
	247	m_WParser->SetAlign(c->GetAlignHor());
	248	}
	249
	250	ParseInner(tag);
	251
	252	m_WParser->SetAlign(old);
	253	if (c->GetFirstChild() != NULL)
	254	{
	255	m_WParser->CloseContainer();
	256	m_WParser->OpenContainer();
	257	}
	258	else
	259	c->SetAlignHor(old);
	260
	261	return true;
	262	}
	263	else
	264	{
	265	// Same as BR
	266	int al = m_WParser->GetContainer()->GetAlignHor();
	267	wxHtmlContainerCell *c;
	268
	269	m_WParser->CloseContainer();
	270	c = m_WParser->OpenContainer();
	271	c->SetAlignHor(al);
	272	c->SetAlign(tag);
	273	c->SetMinHeight(m_WParser->GetCharHeight());
	274	return false;
	275	}
	276	}
	277
	278	TAG_HANDLER_END(DIV)
	279
	280
	281
	282
	283	TAG_HANDLER_BEGIN(TITLE, "TITLE")
	284	TAG_HANDLER_CONSTR(TITLE) { }
	285
	286	TAG_HANDLER_PROC(tag)
	287	{
	288	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
	289	if (winIface)
	290	{
	291	wxString title(tag.GetBeginIter(), tag.GetEndIter1());
	292	#if !wxUSE_UNICODE
	293	const wxFontEncoding enc = m_WParser->GetInputEncoding();
	294	if ( enc != wxFONTENCODING_DEFAULT )
	295	{
	296	// need to convert to the current one
	297	title = wxString(title.wc_str(wxCSConv(enc)), wxConvLocal);
	298	}
	299	#endif // !wxUSE_UNICODE
	300
	301	title = m_WParser->GetEntitiesParser()->Parse(title);
	302
	303	winIface->SetHTMLWindowTitle(title);
	304	}
	305	return true;
	306	}
	307
	308	TAG_HANDLER_END(TITLE)
	309
	310
	311
	312
	313	TAG_HANDLER_BEGIN(BODY, "BODY")
	314	TAG_HANDLER_CONSTR(BODY) { }
	315
	316	TAG_HANDLER_PROC(tag)
	317	{
	318	wxColour clr;
	319
	320	if (tag.GetParamAsColour(wxT("TEXT"), &clr))
	321	{
	322	m_WParser->SetActualColor(clr);
	323	m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
	324	}
	325
	326	if (tag.GetParamAsColour(wxT("LINK"), &clr))
	327	m_WParser->SetLinkColor(clr);
	328
	329	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
	330	// the rest of this function requires a window:
	331	if ( !winIface )
	332	return false;
	333
	334	if (tag.HasParam(wxT("BACKGROUND")))
	335	{
	336	wxFSFile *fileBgImage = m_WParser->OpenURL
	337	(
	338	wxHTML_URL_IMAGE,
	339	tag.GetParam(wxT("BACKGROUND"))
	340	);
	341	if ( fileBgImage )
	342	{
	343	wxInputStream *is = fileBgImage->GetStream();
	344	if ( is )
	345	{
	346	wxImage image(*is);
	347	if ( image.IsOk() )
	348	winIface->SetHTMLBackgroundImage(image);
	349	}
	350
	351	delete fileBgImage;
	352	}
	353	}
	354
	355	if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
	356	{
	357	m_WParser->GetContainer()->InsertCell(
	358	new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
	359	winIface->SetHTMLBackgroundColour(clr);
	360	}
	361
	362	return false;
	363	}
	364
	365	TAG_HANDLER_END(BODY)
	366
	367
	368
	369	TAG_HANDLER_BEGIN(BLOCKQUOTE, "BLOCKQUOTE")
	370	TAG_HANDLER_CONSTR(BLOCKQUOTE) { }
	371
	372	TAG_HANDLER_PROC(tag)
	373	{
	374	wxHtmlContainerCell *c;
	375
	376	m_WParser->CloseContainer();
	377	c = m_WParser->OpenContainer();
	378
	379	if (c->GetAlignHor() == wxHTML_ALIGN_RIGHT)
	380	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_RIGHT);
	381	else
	382	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);
	383
	384	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	385	m_WParser->OpenContainer();
	386	ParseInner(tag);
	387	c = m_WParser->CloseContainer();
	388	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_BOTTOM);
	389	m_WParser->CloseContainer();
	390	m_WParser->OpenContainer();
	391	return true;
	392	}
	393
	394	TAG_HANDLER_END(BLOCKQUOTE)
	395
	396
	397
	398	TAG_HANDLER_BEGIN(SUBSUP, "SUB,SUP")
	399
	400	TAG_HANDLER_PROC(tag)
	401	{
	402	bool issub = (tag.GetName() == wxT("SUB"));
	403	wxHtmlScriptMode oldmode = m_WParser->GetScriptMode();
	404	int oldbase = m_WParser->GetScriptBaseline();
	405	int oldsize = m_WParser->GetFontSize();
	406
	407	wxHtmlContainerCell *cont = m_WParser->GetContainer();
	408	wxHtmlCell *c = cont->GetLastChild();
	409
	410	m_WParser->SetScriptMode(issub ? wxHTML_SCRIPT_SUB : wxHTML_SCRIPT_SUP);
	411	m_WParser->SetScriptBaseline(
	412	oldbase + c ? c->GetScriptBaseline() : 0);
	413
	414	// select smaller font
	415	m_WParser->SetFontSize(m_WParser->GetFontSize()-2);
	416	cont->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	417
	418	ParseInner(tag);
	419
	420	// restore font size
	421	m_WParser->SetFontSize(oldsize);
	422	m_WParser->GetContainer()->InsertCell(
	423	new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	424
	425	// restore base and alignment
	426	m_WParser->SetScriptBaseline(oldbase);
	427	m_WParser->SetScriptMode(oldmode);
	428
	429	return true;
	430	}
	431
	432	TAG_HANDLER_END(SUBSUP)
	433
	434
	435	// Tag handler for tags that we have to ignore, otherwise non-text data
	436	// would show up as text:
	437	TAG_HANDLER_BEGIN(DoNothing, "SCRIPT")
	438	TAG_HANDLER_CONSTR(DoNothing) { }
	439
	440	TAG_HANDLER_PROC(WXUNUSED(tag))
	441	{
	442	return true;
	443	}
	444	TAG_HANDLER_END(DoNothing)
	445
	446
	447
	448
	449
	450	TAGS_MODULE_BEGIN(Layout)
	451
	452	TAGS_MODULE_ADD(P)
	453	TAGS_MODULE_ADD(BR)
	454	TAGS_MODULE_ADD(CENTER)
	455	TAGS_MODULE_ADD(DIV)
	456	TAGS_MODULE_ADD(TITLE)
	457	TAGS_MODULE_ADD(BODY)
	458	TAGS_MODULE_ADD(BLOCKQUOTE)
	459	TAGS_MODULE_ADD(SUBSUP)
	460	TAGS_MODULE_ADD(DoNothing)
	461
	462	TAGS_MODULE_END(Layout)
	463
	464	#endif