[wxWidgets.git] / 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
5526e819	1	/////////////////////////////////////////////////////////////////////////////
93763ad5	2	// Name: src/html/m_layout.cpp
5526e819 VS	3	// Purpose: wxHtml module for basic paragraphs/layout handling
5526e819 VS	4	// Author: Vaclav Slavik
69941f05	5	// RCS-ID: $Id$
5526e819	6	// Copyright: (c) 1999 Vaclav Slavik
65571936	7	// Licence: wxWindows licence
5526e819	8	/////////////////////////////////////////////////////////////////////////////
3364ab79	9
314260fb	10	#include "wx/wxprec.h"
5526e819	11
2b5f62a0	12	#ifdef __BORLANDC__
97e490f8	13	#pragma hdrstop
3364ab79 RS	14	#endif
3364ab79 RS	15
93763ad5 WS	16	#if wxUSE_HTML && wxUSE_STREAMS
93763ad5 WS	17
b4f4d3dd	18	#ifndef WX_PRECOMP
155ecd4c	19	#include "wx/image.h"
3364ab79 RS	20	#endif
3364ab79 RS	21
69941f05 VS	22	#include "wx/html/forcelnk.h"
69941f05 VS	23	#include "wx/html/m_templ.h"
5526e819	24
69941f05	25	#include "wx/html/htmlwin.h"
5526e819	26
c88293a4	27	FORCE_LINK_ME(m_layout)
5526e819	28
7127d129 RR	29	#ifdef __WXWINCE__
	30	#include "wx/msw/wince/missing.h" // for bsearch()
	31	#else
	32	#include <stdlib.h> // bsearch()
	33	#endif
f2034f1b VS	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
4460b6c4	68	class wxHtmlPageBreakCell : public wxHtmlCell
f2034f1b	69	{
36c4ff4d	70	public:
f2034f1b VS	71	wxHtmlPageBreakCell() {}
f2034f1b VS	72
36c4ff4d	73	bool AdjustPagebreak(int* pagebreak,
846f4568 VZ	74	const wxArrayInt& known_pagebreaks,
846f4568 VZ	75	int pageHeight) const;
fd0bab43	76
36c4ff4d VS	77	void Draw(wxDC& WXUNUSED(dc),
	78	int WXUNUSED(x), int WXUNUSED(y),
	79	int WXUNUSED(view_y1), int WXUNUSED(view_y2),
e3ac6ee1	80	wxHtmlRenderingInfo& WXUNUSED(info)) {}
f2034f1b	81
36c4ff4d	82	private:
c0c133e1	83	wxDECLARE_NO_COPY_CLASS(wxHtmlPageBreakCell);
f2034f1b VS	84	};
f2034f1b VS	85
846f4568 VZ	86	bool
	87	wxHtmlPageBreakCell::AdjustPagebreak(int* pagebreak,
	88	const wxArrayInt& known_pagebreaks,
	89	int WXUNUSED(pageHeight)) const
f2034f1b VS	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
d1da8872	94	// do anything except return false.
f2034f1b	95	//
d1da8872	96	// We also simply return false if the 'pagebreak' argument is
f2034f1b VS	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.
b4a980f4	101	if( known_pagebreaks.GetCount() == 0 \|\| *pagebreak <= m_PosY)
fd0bab43	102	{
d1da8872	103	return false;
fd0bab43	104	}
f2034f1b VS	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.
c3485a4e VS	109	int total_height = m_PosY;
	110	for ( wxHtmlCell *parent = GetParent(); parent; parent = parent->GetParent() )
	111	{
	112	total_height += parent->GetPosY();
	113	}
	114
f2034f1b VS	115
f2034f1b VS	116	// Search the array of pagebreaks to see whether we've already set
e92b9e69	117	// a pagebreak here.
fd0bab43	118	int where = known_pagebreaks.Index( total_height);
f2034f1b	119	// Add a pagebreak only if there isn't one already set here.
fd0bab43 VZ	120	if( wxNOT_FOUND != where)
fd0bab43 VZ	121	{
d1da8872	122	return false;
fd0bab43	123	}
f2034f1b	124	else
fd0bab43	125	{
f2034f1b	126	*pagebreak = m_PosY;
d1da8872	127	return true;
fd0bab43	128	}
f2034f1b VS	129	}
f2034f1b VS	130
fd0bab43 VZ	131
fd0bab43 VZ	132
5526e819	133	TAG_HANDLER_BEGIN(P, "P")
fc7a2a60	134	TAG_HANDLER_CONSTR(P) { }
5526e819 VS	135
	136	TAG_HANDLER_PROC(tag)
	137	{
e3774124	138	if (m_WParser->GetContainer()->GetFirstChild() != NULL)
04dbb646	139	{
4f9297b0 VS	140	m_WParser->CloseContainer();
4f9297b0 VS	141	m_WParser->OpenContainer();
8c651ab7	142	}
4f9297b0 VS	143	m_WParser->GetContainer()->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
4f9297b0 VS	144	m_WParser->GetContainer()->SetAlign(tag);
d1da8872	145	return false;
5526e819 VS	146	}
	147
	148	TAG_HANDLER_END(P)
	149
	150
	151
	152	TAG_HANDLER_BEGIN(BR, "BR")
fc7a2a60	153	TAG_HANDLER_CONSTR(BR) { }
5526e819 VS	154
	155	TAG_HANDLER_PROC(tag)
	156	{
4f9297b0	157	int al = m_WParser->GetContainer()->GetAlignHor();
5526e819	158	wxHtmlContainerCell *c;
33ac7e6f	159
4f9297b0 VS	160	m_WParser->CloseContainer();
	161	c = m_WParser->OpenContainer();
	162	c->SetAlignHor(al);
	163	c->SetAlign(tag);
	164	c->SetMinHeight(m_WParser->GetCharHeight());
d1da8872	165	return false;
5526e819 VS	166	}
	167
	168	TAG_HANDLER_END(BR)
	169
	170
	171
	172	TAG_HANDLER_BEGIN(CENTER, "CENTER")
fc7a2a60	173	TAG_HANDLER_CONSTR(CENTER) { }
5526e819 VS	174
	175	TAG_HANDLER_PROC(tag)
	176	{
4f9297b0 VS	177	int old = m_WParser->GetAlign();
	178	wxHtmlContainerCell *c = m_WParser->GetContainer();
	179
	180	m_WParser->SetAlign(wxHTML_ALIGN_CENTER);
e3774124	181	if (c->GetFirstChild() != NULL)
04dbb646	182	{
4f9297b0 VS	183	m_WParser->CloseContainer();
4f9297b0 VS	184	m_WParser->OpenContainer();
5526e819 VS	185	}
5526e819 VS	186	else
4f9297b0	187	c->SetAlignHor(wxHTML_ALIGN_CENTER);
5526e819	188
33ac7e6f	189	if (tag.HasEnding())
04dbb646	190	{
5526e819 VS	191	ParseInner(tag);
5526e819 VS	192
4f9297b0	193	m_WParser->SetAlign(old);
e3774124	194	if (c->GetFirstChild() != NULL)
04dbb646	195	{
4f9297b0 VS	196	m_WParser->CloseContainer();
4f9297b0 VS	197	m_WParser->OpenContainer();
5526e819 VS	198	}
5526e819 VS	199	else
4f9297b0	200	c->SetAlignHor(old);
5526e819	201
d1da8872	202	return true;
5526e819	203	}
d1da8872	204	else return false;
5526e819 VS	205	}
	206
	207	TAG_HANDLER_END(CENTER)
	208
	209
	210
	211	TAG_HANDLER_BEGIN(DIV, "DIV")
fc7a2a60	212	TAG_HANDLER_CONSTR(DIV) { }
5526e819 VS	213
	214	TAG_HANDLER_PROC(tag)
	215	{
92337e39	216	if(tag.HasParam(wxT("STYLE")))
04dbb646	217	{
d1da8872	218	if(tag.GetParam(wxT("STYLE")).IsSameAs(wxT("PAGE-BREAK-BEFORE:ALWAYS"), false))
f2034f1b VS	219	{
	220	m_WParser->CloseContainer();
	221	m_WParser->OpenContainer()->InsertCell(new wxHtmlPageBreakCell);
	222	m_WParser->CloseContainer();
	223	m_WParser->OpenContainer();
d1da8872	224	return false;
f2034f1b VS	225	}
	226	else
	227	{
	228	// Treat other STYLE parameters here when they're supported.
d1da8872	229	return false;
f2034f1b	230	}
5526e819	231	}
92337e39	232	else if(tag.HasParam(wxT("ALIGN")))
04dbb646	233	{
f2034f1b VS	234	int old = m_WParser->GetAlign();
f2034f1b VS	235	wxHtmlContainerCell *c = m_WParser->GetContainer();
e3774124	236	if (c->GetFirstChild() != NULL)
f2034f1b VS	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	}
5526e819	249
f2034f1b	250	ParseInner(tag);
5526e819	251
f2034f1b	252	m_WParser->SetAlign(old);
e3774124	253	if (c->GetFirstChild() != NULL)
f2034f1b VS	254	{
	255	m_WParser->CloseContainer();
	256	m_WParser->OpenContainer();
	257	}
	258	else
	259	c->SetAlignHor(old);
	260
c5448f38	261	return true;
5526e819 VS	262	}
5526e819 VS	263	else
f2034f1b	264	{
c5448f38 VS	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;
f2034f1b	275	}
5526e819 VS	276	}
	277
	278	TAG_HANDLER_END(DIV)
	279
	280
	281
	282
	283	TAG_HANDLER_BEGIN(TITLE, "TITLE")
fc7a2a60	284	TAG_HANDLER_CONSTR(TITLE) { }
5526e819 VS	285
	286	TAG_HANDLER_PROC(tag)
	287	{
bc55e31b VS	288	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
bc55e31b VS	289	if (winIface)
04dbb646	290	{
b1a3a964	291	wxString title(tag.GetBeginIter(), tag.GetEndIter1());
8d94819c	292	#if !wxUSE_UNICODE
4d70ab08 VZ	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
bc55e31b VS	301	title = m_WParser->GetEntitiesParser()->Parse(title);
	302
	303	winIface->SetHTMLWindowTitle(title);
5526e819	304	}
d1da8872	305	return true;
5526e819 VS	306	}
	307
	308	TAG_HANDLER_END(TITLE)
	309
	310
	311
	312
	313	TAG_HANDLER_BEGIN(BODY, "BODY")
fc7a2a60	314	TAG_HANDLER_CONSTR(BODY) { }
5526e819 VS	315
	316	TAG_HANDLER_PROC(tag)
	317	{
5526e819 VS	318	wxColour clr;
5526e819 VS	319
8bd72d90	320	if (tag.GetParamAsColour(wxT("TEXT"), &clr))
04dbb646	321	{
8bd72d90 VS	322	m_WParser->SetActualColor(clr);
8bd72d90 VS	323	m_WParser->GetContainer()->InsertCell(new wxHtmlColourCell(clr));
5526e819 VS	324	}
5526e819 VS	325
8bd72d90 VS	326	if (tag.GetParamAsColour(wxT("LINK"), &clr))
	327	m_WParser->SetLinkColor(clr);
	328
bc55e31b VS	329	wxHtmlWindowInterface *winIface = m_WParser->GetWindowInterface();
	330	// the rest of this function requires a window:
	331	if ( !winIface )
	332	return false;
	333
97e490f8 VZ	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);
a1b806b9	347	if ( image.IsOk() )
bc55e31b	348	winIface->SetHTMLBackgroundImage(image);
97e490f8	349	}
a237d7ed VZ	350
a237d7ed VZ	351	delete fileBgImage;
97e490f8 VZ	352	}
	353	}
	354
8bd72d90	355	if (tag.GetParamAsColour(wxT("BGCOLOR"), &clr))
04dbb646	356	{
8bd72d90 VS	357	m_WParser->GetContainer()->InsertCell(
8bd72d90 VS	358	new wxHtmlColourCell(clr, wxHTML_CLR_BACKGROUND));
bc55e31b	359	winIface->SetHTMLBackgroundColour(clr);
5526e819	360	}
97e490f8	361
d1da8872	362	return false;
5526e819 VS	363	}
	364
	365	TAG_HANDLER_END(BODY)
	366
	367
	368
	369	TAG_HANDLER_BEGIN(BLOCKQUOTE, "BLOCKQUOTE")
fc7a2a60	370	TAG_HANDLER_CONSTR(BLOCKQUOTE) { }
5526e819 VS	371
	372	TAG_HANDLER_PROC(tag)
	373	{
	374	wxHtmlContainerCell *c;
33ac7e6f	375
4f9297b0 VS	376	m_WParser->CloseContainer();
4f9297b0 VS	377	c = m_WParser->OpenContainer();
33ac7e6f	378
04dbb646	379	if (c->GetAlignHor() == wxHTML_ALIGN_RIGHT)
4f9297b0	380	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_RIGHT);
5526e819	381	else
4f9297b0	382	c->SetIndent(5 * m_WParser->GetCharWidth(), wxHTML_INDENT_LEFT);
33ac7e6f	383
04dbb646	384	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
4f9297b0	385	m_WParser->OpenContainer();
5526e819	386	ParseInner(tag);
4f9297b0 VS	387	c = m_WParser->CloseContainer();
	388	c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_BOTTOM);
	389	m_WParser->CloseContainer();
	390	m_WParser->OpenContainer();
d1da8872	391	return true;
5526e819 VS	392	}
	393
	394	TAG_HANDLER_END(BLOCKQUOTE)
	395
	396
	397
3c115835 VS	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);
198d7c6c VS	411	m_WParser->SetScriptBaseline(
198d7c6c VS	412	oldbase + c ? c->GetScriptBaseline() : 0);
3c115835 VS	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
8829fa82 VS	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")
fc7a2a60 VZ	438	TAG_HANDLER_CONSTR(DoNothing) { }
	439
	440	TAG_HANDLER_PROC(WXUNUSED(tag))
8829fa82 VS	441	{
	442	return true;
	443	}
	444	TAG_HANDLER_END(DoNothing)
5526e819 VS	445
	446
	447
3c115835 VS	448
3c115835 VS	449
5526e819 VS	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)
3c115835	459	TAGS_MODULE_ADD(SUBSUP)
8829fa82	460	TAGS_MODULE_ADD(DoNothing)
5526e819 VS	461
	462	TAGS_MODULE_END(Layout)
	463
	464	#endif