src/html/m_layout.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        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"

#include "wx/defs.h"

#if wxUSE_HTML && wxUSE_STREAMS

#ifdef __BORLANDC__
    #pragma hdrstop
#endif

#ifndef WXPRECOMP
#endif

#include "wx/image.h"

#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,
                         int* known_pagebreaks = NULL,
                         int number_of_pages = 0) const;
    void Draw(wxDC& WXUNUSED(dc),
              int WXUNUSED(x), int WXUNUSED(y),
              int WXUNUSED(view_y1), int WXUNUSED(view_y2),
              wxHtmlRenderingInfo& WXUNUSED(info)) {}

private:
    DECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell)
};

// Comparison routine for bsearch into an int* array of pagebreaks.
extern "C" int wxCMPFUNC_CONV wxInteger_compare(void const* i0, void const* i1)
{
    return *(int*)i0 - *(int*)i1;
}

bool wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak, int* known_pagebreaks, int number_of_pages) 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(NULL == known_pagebreaks || *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 + GetParent()->GetPosY() + GetParent()->GetHeight();

    // Search the array of pagebreaks to see whether we've already set
    // a pagebreak here. The standard bsearch() function is appropriate
    // because the array of pagebreaks through known_pagebreaks[number_of_pages]
    // is known to be sorted in strictly increasing order. '1 + number_of_pages'
    // is used as a bsearch() argument because the array contains a leading
    // zero plus one element for each page.
    int* where = (int*) bsearch(&total_height, known_pagebreaks,
                                1 + number_of_pages, sizeof(int),
                                wxInteger_compare);
    // Add a pagebreak only if there isn't one already set here.
    if(NULL != 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)
    {
        if (m_WParser->GetWindow())
        {
            wxHtmlWindow *wfr = (wxHtmlWindow*)(m_WParser->GetWindow());
            if (wfr)
            {
                wxString title = m_WParser->GetSource()->Mid(
                                        tag.GetBeginPos(),
                                        tag.GetEndPos1()-tag.GetBeginPos());
#if !wxUSE_UNICODE && wxUSE_WCHAR_T
                wxCSConv conv(m_WParser->GetInputEncoding());
                title = wxString(title.wc_str(conv), wxConvLocal);
#endif
                title = m_WParser->GetEntitiesParser()->Parse(title);
                wfr->OnSetTitle(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);

        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 )
                {
#if !defined(__WXMSW__) || wxUSE_WXDIB
                    wxImage image(*is);
                    if ( image.Ok() )
                        m_WParser->GetWindow()->SetBackgroundImage(image);
#endif
                }
            }
        }

        if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
        {
            m_WParser->GetContainer()->InsertCell(
                new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
            if (m_WParser->GetWindow() != NULL)
                m_WParser->GetWindow()->SetBackgroundColour(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->GetScriptBaseline());

        // 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: 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	#include "wx/defs.h"
	13
	14	#if wxUSE_HTML && wxUSE_STREAMS
	15
	16	#ifdef __BORLANDC__
	17	#pragma hdrstop
	18	#endif
	19
	20	#ifndef WXPRECOMP
	21	#endif
	22
	23	#include "wx/image.h"
	24
	25	#include "wx/html/forcelnk.h"
	26	#include "wx/html/m_templ.h"
	27
	28	#include "wx/html/htmlwin.h"
	29
	30	FORCE_LINK_ME(m_layout)
	31
	32	#ifdef __WXWINCE__
	33	#include "wx/msw/wince/missing.h" // for bsearch()
	34	#else
	35	#include <stdlib.h> // bsearch()
	36	#endif
	37
	38	//-----------------------------------------------------------------------------
	39	// wxHtmlPageBreakCell
	40	//-----------------------------------------------------------------------------
	41
	42	// Since html isn't a page-layout language, it doesn't support page
	43	// page breaks directly--that requires CSS2 support. But a page-break
	44	// facility is handy, and has been requested more than once on the
	45	// mailing lists. This wxHtml tag handler implements just enough of
	46	// CSS2 to support a page break by recognizing only
	47	// <div style="page-break-before:always">
	48	//
	49	// wxHtml maintains page breaks in wxHtmlPrintout::m_PageBreaks. The
	50	// tag handler below adds appropriate offsets to that array member.
	51	// wxHtmlDCRenderer::Render() accesses that array and makes a new page
	52	// begin after each page-break tag.
	53
	54	// The page-break handler does all its work in AdjustPagebreak(). For
	55	// all tag handlers, that function adjusts the page-break position.
	56	// For other tags, it determines whether the html element can fit on
	57	// the remainder of the page; if it cannot fit, but must not be split,
	58	// then the function moves the page break provided in the argument up,
	59	// and returns 'true' to inform the caller that the argument was
	60	// modified.
	61	//
	62	// Due to its special purpose, the page-break facility differs from
	63	// other tags. It takes up no space, but it behaves as though there is
	64	// never enough room to fit it on the remainder of the page--it always
	65	// forces a page break. Therefore, unlike other elements that trigger
	66	// a page break, it would never 'fit' on the following page either.
	67	// Therefore it's necessary to compare each pagebreak candidate to the
	68	// array wxHtmlPrintout::m_PageBreaks of pagebreaks already set, and
	69	// set a new one only if it's not in that array.
	70
	71	class wxHtmlPageBreakCell : public wxHtmlCell
	72	{
	73	public:
	74	wxHtmlPageBreakCell() {}
	75
	76	bool AdjustPagebreak(int* pagebreak,
	77	int* known_pagebreaks = NULL,
	78	int number_of_pages = 0) const;
	79	void Draw(wxDC& WXUNUSED(dc),
	80	int WXUNUSED(x), int WXUNUSED(y),
	81	int WXUNUSED(view_y1), int WXUNUSED(view_y2),
	82	wxHtmlRenderingInfo& WXUNUSED(info)) {}
	83
	84	private:
	85	DECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell)
	86	};
	87
	88	// Comparison routine for bsearch into an int* array of pagebreaks.
	89	extern "C" int wxCMPFUNC_CONV wxInteger_compare(void const* i0, void const* i1)
	90	{
	91	return (int)i0 - (int)i1;
	92	}
	93
	94	bool wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak, int* known_pagebreaks, int number_of_pages) const
	95	{
	96	// When we are counting pages, 'known_pagebreaks' is non-NULL.
	97	// That's the only time we change 'pagebreak'. Otherwise, pages
	98	// were already counted, 'known_pagebreaks' is NULL, and we don't
	99	// do anything except return false.
	100	//
	101	// We also simply return false if the 'pagebreak' argument is
	102	// less than (vertically above) or the same as the current
	103	// vertical position. Otherwise we'd be setting a pagebreak above
	104	// the current cell, which is incorrect, or duplicating a
	105	// pagebreak that has already been set.
	106	if(NULL == known_pagebreaks \|\| *pagebreak <= m_PosY)
	107	{
	108	return false;
	109	}
	110
	111	// m_PosY is only the vertical offset from the parent. The pagebreak
	112	// required here is the total page offset, so m_PosY must be added
	113	// to the parent's offset and height.
	114	int total_height = m_PosY + GetParent()->GetPosY() + GetParent()->GetHeight();
	115
	116	// Search the array of pagebreaks to see whether we've already set
	117	// a pagebreak here. The standard bsearch() function is appropriate
	118	// because the array of pagebreaks through known_pagebreaks[number_of_pages]
	119	// is known to be sorted in strictly increasing order. '1 + number_of_pages'
	120	// is used as a bsearch() argument because the array contains a leading
	121	// zero plus one element for each page.
	122	int* where = (int*) bsearch(&total_height, known_pagebreaks,
	123	1 + number_of_pages, sizeof(int),
	124	wxInteger_compare);
	125	// Add a pagebreak only if there isn't one already set here.
	126	if(NULL != where)
	127	{
	128	return false;
	129	}
	130	else
	131	{
	132	*pagebreak = m_PosY;
	133	return true;
	134	}
	135	}
	136
	137	TAG_HANDLER_BEGIN(P, "P")
	138	TAG_HANDLER_CONSTR(P) { }
	139
	140	TAG_HANDLER_PROC(tag)
	141	{
	142	if (m_WParser->GetContainer()->GetFirstChild() != NULL)
	143	{
	144	m_WParser->CloseContainer();
	145	m_WParser->OpenContainer();
	146	}
	147	m_WParser->GetContainer()->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	148	m_WParser->GetContainer()->SetAlign(tag);
	149	return false;
	150	}
	151
	152	TAG_HANDLER_END(P)
	153
	154
	155
	156	TAG_HANDLER_BEGIN(BR, "BR")
	157	TAG_HANDLER_CONSTR(BR) { }
	158
	159	TAG_HANDLER_PROC(tag)
	160	{
	161	int al = m_WParser->GetContainer()->GetAlignHor();
	162	wxHtmlContainerCell *c;
	163
	164	m_WParser->CloseContainer();
	165	c = m_WParser->OpenContainer();
	166	c->SetAlignHor(al);
	167	c->SetAlign(tag);
	168	c->SetMinHeight(m_WParser->GetCharHeight());
	169	return false;
	170	}
	171
	172	TAG_HANDLER_END(BR)
	173
	174
	175
	176	TAG_HANDLER_BEGIN(CENTER, "CENTER")
	177	TAG_HANDLER_CONSTR(CENTER) { }
	178
	179	TAG_HANDLER_PROC(tag)
	180	{
	181	int old = m_WParser->GetAlign();
	182	wxHtmlContainerCell *c = m_WParser->GetContainer();
	183
	184	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
	185	if (c->GetFirstChild() != NULL)
	186	{
	187	m_WParser->CloseContainer();
	188	m_WParser->OpenContainer();
	189	}
	190	else
	191	c->SetAlignHor(wxHTML_ALIGN_CENTER);
	192
	193	if (tag.HasEnding())
	194	{
	195	ParseInner(tag);
	196
	197	m_WParser->SetAlign(old);
	198	if (c->GetFirstChild() != NULL)
	199	{
	200	m_WParser->CloseContainer();
	201	m_WParser->OpenContainer();
	202	}
	203	else
	204	c->SetAlignHor(old);
	205
	206	return true;
	207	}
	208	else return false;
	209	}
	210
	211	TAG_HANDLER_END(CENTER)
	212
	213
	214
	215	TAG_HANDLER_BEGIN(DIV, "DIV")
	216	TAG_HANDLER_CONSTR(DIV) { }
	217
	218	TAG_HANDLER_PROC(tag)
	219	{
	220	if(tag.HasParam(wxT("STYLE")))
	221	{
	222	if(tag.GetParam(wxT("STYLE")).IsSameAs(wxT("PAGE-BREAK-BEFORE:ALWAYS"), false))
	223	{
	224	m_WParser->CloseContainer();
	225	m_WParser->OpenContainer()->InsertCell(new wxHtmlPageBreakCell);
	226	m_WParser->CloseContainer();
	227	m_WParser->OpenContainer();
	228	return false;
	229	}
	230	else
	231	{
	232	// Treat other STYLE parameters here when they're supported.
	233	return false;
	234	}
	235	}
	236	else if(tag.HasParam(wxT("ALIGN")))
	237	{
	238	int old = m_WParser->GetAlign();
	239	wxHtmlContainerCell *c = m_WParser->GetContainer();
	240	if (c->GetFirstChild() != NULL)
	241	{
	242	m_WParser->CloseContainer();
	243	m_WParser->OpenContainer();
	244	c = m_WParser->GetContainer();
	245	c->SetAlign(tag);
	246	m_WParser->SetAlign(c->GetAlignHor());
	247	}
	248	else
	249	{
	250	c->SetAlign(tag);
	251	m_WParser->SetAlign(c->GetAlignHor());
	252	}
	253
	254	ParseInner(tag);
	255
	256	m_WParser->SetAlign(old);
	257	if (c->GetFirstChild() != NULL)
	258	{
	259	m_WParser->CloseContainer();
	260	m_WParser->OpenContainer();
	261	}
	262	else
	263	c->SetAlignHor(old);
	264
	265	return true;
	266	}
	267	else
	268	{
	269	// Same as BR
	270	int al = m_WParser->GetContainer()->GetAlignHor();
	271	wxHtmlContainerCell *c;
	272
	273	m_WParser->CloseContainer();
	274	c = m_WParser->OpenContainer();
	275	c->SetAlignHor(al);
	276	c->SetAlign(tag);
	277	c->SetMinHeight(m_WParser->GetCharHeight());
	278	return false;
	279	}
	280	}
	281
	282	TAG_HANDLER_END(DIV)
	283
	284
	285
	286
	287	TAG_HANDLER_BEGIN(TITLE, "TITLE")
	288	TAG_HANDLER_CONSTR(TITLE) { }
	289
	290	TAG_HANDLER_PROC(tag)
	291	{
	292	if (m_WParser->GetWindow())
	293	{
	294	wxHtmlWindow wfr = (wxHtmlWindow)(m_WParser->GetWindow());
	295	if (wfr)
	296	{
	297	wxString title = m_WParser->GetSource()->Mid(
	298	tag.GetBeginPos(),
	299	tag.GetEndPos1()-tag.GetBeginPos());
	300	#if !wxUSE_UNICODE && wxUSE_WCHAR_T
	301	wxCSConv conv(m_WParser->GetInputEncoding());
	302	title = wxString(title.wc_str(conv), wxConvLocal);
	303	#endif
	304	title = m_WParser->GetEntitiesParser()->Parse(title);
	305	wfr->OnSetTitle(title);
	306	}
	307	}
	308	return true;
	309	}
	310
	311	TAG_HANDLER_END(TITLE)
	312
	313
	314
	315
	316	TAG_HANDLER_BEGIN(BODY, "BODY")
	317	TAG_HANDLER_CONSTR(BODY) { }
	318
	319	TAG_HANDLER_PROC(tag)
	320	{
	321	wxColour clr;
	322
	323	if (tag.GetParamAsColour(wxT("TEXT"), &clr))
	324	{
	325	m_WParser->SetActualColor(clr);
	326	m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
	327	}
	328
	329	if (tag.GetParamAsColour(wxT("LINK"), &clr))
	330	m_WParser->SetLinkColor(clr);
	331
	332	if (tag.HasParam(wxT("BACKGROUND")))
	333	{
	334	wxFSFile *fileBgImage = m_WParser->OpenURL
	335	(
	336	wxHTML_URL_IMAGE,
	337	tag.GetParam(wxT("BACKGROUND"))
	338	);
	339	if ( fileBgImage )
	340	{
	341	wxInputStream *is = fileBgImage->GetStream();
	342	if ( is )
	343	{
	344	#if !defined(__WXMSW__) \|\| wxUSE_WXDIB
	345	wxImage image(*is);
	346	if ( image.Ok() )
	347	m_WParser->GetWindow()->SetBackgroundImage(image);
	348	#endif
	349	}
	350	}
	351	}
	352
	353	if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
	354	{
	355	m_WParser->GetContainer()->InsertCell(
	356	new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
	357	if (m_WParser->GetWindow() != NULL)
	358	m_WParser->GetWindow()->SetBackgroundColour(clr);
	359	}
	360
	361	return false;
	362	}
	363
	364	TAG_HANDLER_END(BODY)
	365
	366
	367
	368	TAG_HANDLER_BEGIN(BLOCKQUOTE, "BLOCKQUOTE")
	369	TAG_HANDLER_CONSTR(BLOCKQUOTE) { }
	370
	371	TAG_HANDLER_PROC(tag)
	372	{
	373	wxHtmlContainerCell *c;
	374
	375	m_WParser->CloseContainer();
	376	c = m_WParser->OpenContainer();
	377
	378	if (c->GetAlignHor() == wxHTML_ALIGN_RIGHT)
	379	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_RIGHT);
	380	else
	381	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);
	382
	383	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
	384	m_WParser->OpenContainer();
	385	ParseInner(tag);
	386	c = m_WParser->CloseContainer();
	387	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_BOTTOM);
	388	m_WParser->CloseContainer();
	389	m_WParser->OpenContainer();
	390	return true;
	391	}
	392
	393	TAG_HANDLER_END(BLOCKQUOTE)
	394
	395
	396
	397	TAG_HANDLER_BEGIN(SUBSUP, "SUB,SUP")
	398
	399	TAG_HANDLER_PROC(tag)
	400	{
	401	bool issub = (tag.GetName() == wxT("SUB"));
	402	wxHtmlScriptMode oldmode = m_WParser->GetScriptMode();
	403	int oldbase = m_WParser->GetScriptBaseline();
	404	int oldsize = m_WParser->GetFontSize();
	405
	406	wxHtmlContainerCell *cont = m_WParser->GetContainer();
	407	wxHtmlCell *c = cont->GetLastChild();
	408
	409	m_WParser->SetScriptMode(issub ? wxHTML_SCRIPT_SUB : wxHTML_SCRIPT_SUP);
	410	m_WParser->SetScriptBaseline(oldbase + c->GetScriptBaseline());
	411
	412	// select smaller font
	413	m_WParser->SetFontSize(m_WParser->GetFontSize()-2);
	414	cont->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	415
	416	ParseInner(tag);
	417
	418	// restore font size
	419	m_WParser->SetFontSize(oldsize);
	420	m_WParser->GetContainer()->InsertCell(
	421	new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
	422
	423	// restore base and alignment
	424	m_WParser->SetScriptBaseline(oldbase);
	425	m_WParser->SetScriptMode(oldmode);
	426
	427	return true;
	428	}
	429
	430	TAG_HANDLER_END(SUBSUP)
	431
	432
	433	// Tag handler for tags that we have to ignore, otherwise non-text data
	434	// would show up as text:
	435	TAG_HANDLER_BEGIN(DoNothing, "SCRIPT")
	436	TAG_HANDLER_CONSTR(DoNothing) { }
	437
	438	TAG_HANDLER_PROC(WXUNUSED(tag))
	439	{
	440	return true;
	441	}
	442	TAG_HANDLER_END(DoNothing)
	443
	444
	445
	446
	447
	448	TAGS_MODULE_BEGIN(Layout)
	449
	450	TAGS_MODULE_ADD(P)
	451	TAGS_MODULE_ADD(BR)
	452	TAGS_MODULE_ADD(CENTER)
	453	TAGS_MODULE_ADD(DIV)
	454	TAGS_MODULE_ADD(TITLE)
	455	TAGS_MODULE_ADD(BODY)
	456	TAGS_MODULE_ADD(BLOCKQUOTE)
	457	TAGS_MODULE_ADD(SUBSUP)
	458	TAGS_MODULE_ADD(DoNothing)
	459
	460	TAGS_MODULE_END(Layout)
	461
	462	#endif