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,
                         wxArrayInt& known_pagebreaks) 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, wxArrayInt& known_pagebreaks) 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.Ok() )
                        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	wxArrayInt& known_pagebreaks) const;
	75
	76	void Draw(wxDC& WXUNUSED(dc),
	77	int WXUNUSED(x), int WXUNUSED(y),
	78	int WXUNUSED(view_y1), int WXUNUSED(view_y2),
	79	wxHtmlRenderingInfo& WXUNUSED(info)) {}
	80
	81	private:
	82	wxDECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell);
	83	};
	84
	85	bool wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak, wxArrayInt& known_pagebreaks) const
	86	{
	87	// When we are counting pages, 'known_pagebreaks' is non-NULL.
	88	// That's the only time we change 'pagebreak'. Otherwise, pages
	89	// were already counted, 'known_pagebreaks' is NULL, and we don't
	90	// do anything except return false.
	91	//
	92	// We also simply return false if the 'pagebreak' argument is
	93	// less than (vertically above) or the same as the current
	94	// vertical position. Otherwise we'd be setting a pagebreak above
	95	// the current cell, which is incorrect, or duplicating a
	96	// pagebreak that has already been set.
	97	if( known_pagebreaks.GetCount() == 0 \|\| *pagebreak <= m_PosY)
	98	{
	99	return false;
	100	}
	101
	102	// m_PosY is only the vertical offset from the parent. The pagebreak
	103	// required here is the total page offset, so m_PosY must be added
	104	// to the parent's offset and height.
	105	int total_height = m_PosY;
	106	for ( wxHtmlCell *parent = GetParent(); parent; parent = parent->GetParent() )
	107	{
	108	total_height += parent->GetPosY();
	109	}
	110
	111
	112	// Search the array of pagebreaks to see whether we've already set
	113	// a pagebreak here.
	114	int where = known_pagebreaks.Index( total_height);
	115	// Add a pagebreak only if there isn't one already set here.
	116	if( wxNOT_FOUND != where)
	117	{
	118	return false;
	119	}
	120	else
	121	{
	122	*pagebreak = m_PosY;
	123	return true;
	124	}
	125	}
	126
	127
	128
	129	TAG_HANDLER_BEGIN(P, "P")
	130	TAG_HANDLER_CONSTR(P) { }
	131
	132	TAG_HANDLER_PROC(tag)
	133	{
	134	if (m_WParser->GetContainer()->GetFirstChild() != NULL)
	135	{
	136	m_WParser->CloseContainer();
	137	m_WParser->OpenContainer();
	138	}
	139	m_WParser->GetContainer()->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	140	m_WParser->GetContainer()->SetAlign(tag);
	141	return false;
	142	}
	143
	144	TAG_HANDLER_END(P)
	145
	146
	147
	148	TAG_HANDLER_BEGIN(BR, "BR")
	149	TAG_HANDLER_CONSTR(BR) { }
	150
	151	TAG_HANDLER_PROC(tag)
	152	{
	153	int al = m_WParser->GetContainer()->GetAlignHor();
	154	wxHtmlContainerCell *c;
	155
	156	m_WParser->CloseContainer();
	157	c = m_WParser->OpenContainer();
	158	c->SetAlignHor(al);
	159	c->SetAlign(tag);
	160	c->SetMinHeight(m_WParser->GetCharHeight());
	161	return false;
	162	}
	163
	164	TAG_HANDLER_END(BR)
	165
	166
	167
	168	TAG_HANDLER_BEGIN(CENTER, "CENTER")
	169	TAG_HANDLER_CONSTR(CENTER) { }
	170
	171	TAG_HANDLER_PROC(tag)
	172	{
	173	int old = m_WParser->GetAlign();
	174	wxHtmlContainerCell *c = m_WParser->GetContainer();
	175
	176	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
	177	if (c->GetFirstChild() != NULL)
	178	{
	179	m_WParser->CloseContainer();
	180	m_WParser->OpenContainer();
	181	}
	182	else
	183	c->SetAlignHor(wxHTML_ALIGN_CENTER);
	184
	185	if (tag.HasEnding())
	186	{
	187	ParseInner(tag);
	188
	189	m_WParser->SetAlign(old);
	190	if (c->GetFirstChild() != NULL)
	191	{
	192	m_WParser->CloseContainer();
	193	m_WParser->OpenContainer();
	194	}
	195	else
	196	c->SetAlignHor(old);
	197
	198	return true;
	199	}
	200	else return false;
	201	}
	202
	203	TAG_HANDLER_END(CENTER)
	204
	205
	206
	207	TAG_HANDLER_BEGIN(DIV, "DIV")
	208	TAG_HANDLER_CONSTR(DIV) { }
	209
	210	TAG_HANDLER_PROC(tag)
	211	{
	212	if(tag.HasParam(wxT("STYLE")))
	213	{
	214	if(tag.GetParam(wxT("STYLE")).IsSameAs(wxT("PAGE-BREAK-BEFORE:ALWAYS"), false))
	215	{
	216	m_WParser->CloseContainer();
	217	m_WParser->OpenContainer()->InsertCell(new wxHtmlPageBreakCell);
	218	m_WParser->CloseContainer();
	219	m_WParser->OpenContainer();
	220	return false;
	221	}
	222	else
	223	{
	224	// Treat other STYLE parameters here when they're supported.
	225	return false;
	226	}
	227	}
	228	else if(tag.HasParam(wxT("ALIGN")))
	229	{
	230	int old = m_WParser->GetAlign();
	231	wxHtmlContainerCell *c = m_WParser->GetContainer();
	232	if (c->GetFirstChild() != NULL)
	233	{
	234	m_WParser->CloseContainer();
	235	m_WParser->OpenContainer();
	236	c = m_WParser->GetContainer();
	237	c->SetAlign(tag);
	238	m_WParser->SetAlign(c->GetAlignHor());
	239	}
	240	else
	241	{
	242	c->SetAlign(tag);
	243	m_WParser->SetAlign(c->GetAlignHor());
	244	}
	245
	246	ParseInner(tag);
	247
	248	m_WParser->SetAlign(old);
	249	if (c->GetFirstChild() != NULL)
	250	{
	251	m_WParser->CloseContainer();
	252	m_WParser->OpenContainer();
	253	}
	254	else
	255	c->SetAlignHor(old);
	256
	257	return true;
	258	}
	259	else
	260	{
	261	// Same as BR
	262	int al = m_WParser->GetContainer()->GetAlignHor();
	263	wxHtmlContainerCell *c;
	264
	265	m_WParser->CloseContainer();
	266	c = m_WParser->OpenContainer();
	267	c->SetAlignHor(al);
	268	c->SetAlign(tag);
	269	c->SetMinHeight(m_WParser->GetCharHeight());
	270	return false;
	271	}
	272	}
	273
	274	TAG_HANDLER_END(DIV)
	275
	276
	277
	278
	279	TAG_HANDLER_BEGIN(TITLE, "TITLE")
	280	TAG_HANDLER_CONSTR(TITLE) { }
	281
	282	TAG_HANDLER_PROC(tag)
	283	{
	284	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
	285	if (winIface)
	286	{
	287	wxString title(tag.GetBeginIter(), tag.GetEndIter1());
	288	#if !wxUSE_UNICODE
	289	const wxFontEncoding enc = m_WParser->GetInputEncoding();
	290	if ( enc != wxFONTENCODING_DEFAULT )
	291	{
	292	// need to convert to the current one
	293	title = wxString(title.wc_str(wxCSConv(enc)), wxConvLocal);
	294	}
	295	#endif // !wxUSE_UNICODE
	296
	297	title = m_WParser->GetEntitiesParser()->Parse(title);
	298
	299	winIface->SetHTMLWindowTitle(title);
	300	}
	301	return true;
	302	}
	303
	304	TAG_HANDLER_END(TITLE)
	305
	306
	307
	308
	309	TAG_HANDLER_BEGIN(BODY, "BODY")
	310	TAG_HANDLER_CONSTR(BODY) { }
	311
	312	TAG_HANDLER_PROC(tag)
	313	{
	314	wxColour clr;
	315
	316	if (tag.GetParamAsColour(wxT("TEXT"), &clr))
	317	{
	318	m_WParser->SetActualColor(clr);
	319	m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
	320	}
	321
	322	if (tag.GetParamAsColour(wxT("LINK"), &clr))
	323	m_WParser->SetLinkColor(clr);
	324
	325	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
	326	// the rest of this function requires a window:
	327	if ( !winIface )
	328	return false;
	329
	330	if (tag.HasParam(wxT("BACKGROUND")))
	331	{
	332	wxFSFile *fileBgImage = m_WParser->OpenURL
	333	(
	334	wxHTML_URL_IMAGE,
	335	tag.GetParam(wxT("BACKGROUND"))
	336	);
	337	if ( fileBgImage )
	338	{
	339	wxInputStream *is = fileBgImage->GetStream();
	340	if ( is )
	341	{
	342	wxImage image(*is);
	343	if ( image.Ok() )
	344	winIface->SetHTMLBackgroundImage(image);
	345	}
	346
	347	delete fileBgImage;
	348	}
	349	}
	350
	351	if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
	352	{
	353	m_WParser->GetContainer()->InsertCell(
	354	new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
	355	winIface->SetHTMLBackgroundColour(clr);
	356	}
	357
	358	return false;
	359	}
	360
	361	TAG_HANDLER_END(BODY)
	362
	363
	364
	365	TAG_HANDLER_BEGIN(BLOCKQUOTE, "BLOCKQUOTE")
	366	TAG_HANDLER_CONSTR(BLOCKQUOTE) { }
	367
	368	TAG_HANDLER_PROC(tag)
	369	{
	370	wxHtmlContainerCell *c;
	371
	372	m_WParser->CloseContainer();
	373	c = m_WParser->OpenContainer();
	374
	375	if (c->GetAlignHor() == wxHTML_ALIGN_RIGHT)
	376	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_RIGHT);
	377	else
	378	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);
	379
	380	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	381	m_WParser->OpenContainer();
	382	ParseInner(tag);
	383	c = m_WParser->CloseContainer();
	384	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_BOTTOM);
	385	m_WParser->CloseContainer();
	386	m_WParser->OpenContainer();
	387	return true;
	388	}
	389
	390	TAG_HANDLER_END(BLOCKQUOTE)
	391
	392
	393
	394	TAG_HANDLER_BEGIN(SUBSUP, "SUB,SUP")
	395
	396	TAG_HANDLER_PROC(tag)
	397	{
	398	bool issub = (tag.GetName() == wxT("SUB"));
	399	wxHtmlScriptMode oldmode = m_WParser->GetScriptMode();
	400	int oldbase = m_WParser->GetScriptBaseline();
	401	int oldsize = m_WParser->GetFontSize();
	402
	403	wxHtmlContainerCell *cont = m_WParser->GetContainer();
	404	wxHtmlCell *c = cont->GetLastChild();
	405
	406	m_WParser->SetScriptMode(issub ? wxHTML_SCRIPT_SUB : wxHTML_SCRIPT_SUP);
	407	m_WParser->SetScriptBaseline(
	408	oldbase + c ? c->GetScriptBaseline() : 0);
	409
	410	// select smaller font
	411	m_WParser->SetFontSize(m_WParser->GetFontSize()-2);
	412	cont->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	413
	414	ParseInner(tag);
	415
	416	// restore font size
	417	m_WParser->SetFontSize(oldsize);
	418	m_WParser->GetContainer()->InsertCell(
	419	new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	420
	421	// restore base and alignment
	422	m_WParser->SetScriptBaseline(oldbase);
	423	m_WParser->SetScriptMode(oldmode);
	424
	425	return true;
	426	}
	427
	428	TAG_HANDLER_END(SUBSUP)
	429
	430
	431	// Tag handler for tags that we have to ignore, otherwise non-text data
	432	// would show up as text:
	433	TAG_HANDLER_BEGIN(DoNothing, "SCRIPT")
	434	TAG_HANDLER_CONSTR(DoNothing) { }
	435
	436	TAG_HANDLER_PROC(WXUNUSED(tag))
	437	{
	438	return true;
	439	}
	440	TAG_HANDLER_END(DoNothing)
	441
	442
	443
	444
	445
	446	TAGS_MODULE_BEGIN(Layout)
	447
	448	TAGS_MODULE_ADD(P)
	449	TAGS_MODULE_ADD(BR)
	450	TAGS_MODULE_ADD(CENTER)
	451	TAGS_MODULE_ADD(DIV)
	452	TAGS_MODULE_ADD(TITLE)
	453	TAGS_MODULE_ADD(BODY)
	454	TAGS_MODULE_ADD(BLOCKQUOTE)
	455	TAGS_MODULE_ADD(SUBSUP)
	456	TAGS_MODULE_ADD(DoNothing)
	457
	458	TAGS_MODULE_END(Layout)
	459
	460	#endif