[wxWidgets.git] / src / html / m_image.cpp

/////////////////////////////////////////////////////////////////////////////
// Name:        m_image.cpp
// Purpose:     wxHtml module for displaying images
// Author:      Vaclav Slavik
// RCS-ID:      $Id$
// Copyright:   (c) 1999 Vaclav Slavik, Joel Lucsy
// Licence:     wxWindows Licence
/////////////////////////////////////////////////////////////////////////////

#ifdef __GNUG__
#pragma implementation
#endif

#include "wx/wxprec.h"

#include "wx/defs.h"
#if wxUSE_HTML && wxUSE_STREAMS

#ifdef __BORDLANDC__
#pragma hdrstop
#endif

#ifndef WXPRECOMP
#include "wx/wx.h"
#endif

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


#include "wx/image.h"
#include "wx/dynarray.h"

#include <math.h>
#include <float.h>

FORCE_LINK_ME(m_image)


WX_DECLARE_OBJARRAY(int, CoordArray);
#include "wx/arrimpl.cpp" // this is a magic incantation which must be done!
WX_DEFINE_OBJARRAY(CoordArray);


//--------------------------------------------------------------------------------
// wxHtmlImageMapAreaCell
//                  0-width, 0-height cell that represents single area in imagemap
//                  (it's GetLink is called from wxHtmlImageCell's)
//--------------------------------------------------------------------------------

class wxHtmlImageMapAreaCell : public wxHtmlCell
{
    public:
        enum celltype { CIRCLE, RECT, POLY };
    protected:
        CoordArray coords;
        celltype type;
        int radius;
    public:
        wxHtmlImageMapAreaCell( celltype t, wxString &coords, double pixel_scale = 1.0);
        virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
};


wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype t, wxString &incoords, double pixel_scale )
{
    int i;
    wxString x = incoords, y;

    type = t;
    while ((i = x.Find( ',' )) != -1) 
    {
        coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) );
        x = x.Mid( i + 1 );
    }
    coords.Add( (int)(pixel_scale * (double)wxAtoi( x.c_str())) );
}

wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
{
    switch (type) 
    {
        case RECT:
            {
                int l, t, r, b;

                l = coords[ 0 ];
                t = coords[ 1 ];
                r = coords[ 2 ];
                b = coords[ 3 ];
                if (x >= l && x <= r && y >= t && y <= b) 
		        {
                    return m_Link;
                }
                break;
            }
        case CIRCLE:
            {
                int l, t, r;
                double  d;

                l = coords[ 0 ];
                t = coords[ 1 ];
                r = coords[ 2 ];
                d = sqrt( (double) (((x - l) * (x - l)) + ((y - t) * (y - t))) );
                if (d < (double)r) 
		        {
                    return m_Link;
                }
            }
            break;
        case POLY:
            {
                if (coords.GetCount() >= 6) 
		        {
                    int intersects = 0;
                    int wherex = x;
                    int wherey = y;
                    int totalv = coords.GetCount() / 2;
                    int totalc = totalv * 2;
                    int xval = coords[totalc - 2];
                    int yval = coords[totalc - 1];
                    int end = totalc;
                    int pointer = 1;

                    if ((yval >= wherey) != (coords[pointer] >= wherey)) 
		            {
                        if ((xval >= wherex) == (coords[0] >= wherex)) 
			            {
                            intersects += (xval >= wherex) ? 1 : 0;
                        } 
			            else 
				        {
                            intersects += ((xval - (yval - wherey) *
                                            (coords[0] - xval) /
                                            (coords[pointer] - yval)) >= wherex) ? 1 : 0;
                        }
                    }

                    while (pointer < end) 
		            {
                        yval = coords[pointer];
                        pointer += 2;
                        if (yval >= wherey) 
			            {
                            while ((pointer < end) && (coords[pointer] >= wherey)) 
			                {
                                pointer += 2;
                            }
                            if (pointer >= end) 
			                {
                                break;
                            }
                            if ((coords[pointer - 3] >= wherex) ==
                                    (coords[pointer - 1] >= wherex)) {
                                intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
                            } 
			                else 
					        {
                                intersects +=
                                    ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
                                      (coords[pointer - 1] - coords[pointer - 3]) /
                                      (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
                            }
                        } 
			            else 
				        {
                            while ((pointer < end) && (coords[pointer] < wherey)) 
			                {
                                pointer += 2;
                            }
                            if (pointer >= end) 
			                {
                                break;
                            }
                            if ((coords[pointer - 3] >= wherex) ==
                                    (coords[pointer - 1] >= wherex)) 
				            {
                                intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
                            } 
			                else 
					        {
                                intersects +=
                                    ((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
                                      (coords[pointer - 1] - coords[pointer - 3]) /
                                      (coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
                            }
                        }
                    }
                    if ((intersects & 1) != 0) 
		            {
                        return m_Link;
                    }
                }
            }
            break;
    }

    if (m_Next) 
    {
        wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
        return a->GetLink( x, y );
    }
    return NULL;
}


//--------------------------------------------------------------------------------
// wxHtmlImageMapCell
//                  0-width, 0-height cell that represents map from imagemaps
//                  it is always placed before wxHtmlImageMapAreaCells
//                  It responds to Find(wxHTML_COND_ISIMAGEMAP)
//--------------------------------------------------------------------------------


class wxHtmlImageMapCell : public wxHtmlCell
{
    public:
        wxHtmlImageMapCell( wxString &name );
    protected:
        wxString m_Name;
    public:
        virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
        virtual const wxHtmlCell *Find( int cond, const void *param ) const;
};


wxHtmlImageMapCell::wxHtmlImageMapCell( wxString &name )
{
    m_Name = name ;
}

wxHtmlLinkInfo *wxHtmlImageMapCell::GetLink( int x, int y ) const
{
    wxHtmlImageMapAreaCell  *a = (wxHtmlImageMapAreaCell*)m_Next;
    if (a)
        return a->GetLink( x, y );
    return wxHtmlCell::GetLink( x, y );
}

const wxHtmlCell *wxHtmlImageMapCell::Find( int cond, const void *param ) const
{
    if (cond == wxHTML_COND_ISIMAGEMAP) 
    {
        if (m_Name == *((wxString*)(param)))
            return this;
    }
    return wxHtmlCell::Find(cond, param);
}


//--------------------------------------------------------------------------------
// wxHtmlImageCell
//                  Image/bitmap
//--------------------------------------------------------------------------------

class wxHtmlImageCell : public wxHtmlCell
{
    public:
        wxBitmap *m_Image;
        double m_Scale;
        wxHtmlImageMapCell *m_ImageMap;
        wxString m_MapName;

        wxHtmlImageCell(wxFSFile *input, int w = -1, int h = -1, double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM, wxString mapname = wxEmptyString);
        ~wxHtmlImageCell() {if (m_Image) delete m_Image; }
        void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
        virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
};


//--------------------------------------------------------------------------------
// wxHtmlImageCell
//--------------------------------------------------------------------------------

wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, int align, wxString mapname) : wxHtmlCell()
{
    wxImage *img;
    int ww, hh, bw, bh;
    wxInputStream *s = input->GetStream();
    
    m_Scale = scale;
    img = new wxImage(*s, wxBITMAP_TYPE_ANY);
    m_Image = NULL;
    if (img && (img->Ok())) 
    {
        ww = img->GetWidth();
        hh = img->GetHeight();
        if (w != -1) bw = w; else bw = ww;
        if (h != -1) bh = h; else bh = hh;

        m_Width = (int)(scale * (double)bw);
        m_Height = (int)(scale * (double)bh);

        if ((bw != ww) || (bh != hh)) 
	    {
            wxImage img2 = img->Scale(bw, bh);
            m_Image = new wxBitmap(img2.ConvertToBitmap());
        } 
	    else
            m_Image = new wxBitmap(img->ConvertToBitmap());
        delete img;
    }
    switch (align) 
    {
        case wxHTML_ALIGN_TOP :
            m_Descent = m_Height;
            break;
        case wxHTML_ALIGN_CENTER :
            m_Descent = m_Height / 2;
            break;
        case wxHTML_ALIGN_BOTTOM :
        default :
            m_Descent = 0;
            break;
    }

    m_ImageMap = NULL;
    m_MapName = mapname;
    SetCanLiveOnPagebreak(FALSE);
}


void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
{
    if (m_Image)
    {
        double us_x, us_y;
        dc.GetUserScale(&us_x, &us_y);
        dc.SetUserScale(us_x * m_Scale, us_y * m_Scale);
    
//      dc.DrawBitmap(*m_Image, x + m_PosX, y + m_PosY, (m_Image->GetMask() != (wxMask*) 0));
        dc.DrawBitmap(*m_Image, (int) ((x + m_PosX) / m_Scale), 
                                (int) ((y + m_PosY) / m_Scale), TRUE);
        dc.SetUserScale(us_x, us_y);
    }
    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
}

wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
{
    if (m_MapName.IsEmpty())
        return wxHtmlCell::GetLink( x, y );
    if (!m_ImageMap) 
    {
        wxHtmlContainerCell *p, *op;
        op = p = GetParent();
        while (p) 
	    {
            op = p;
            p = p->GetParent();
        }
        p = op;
        wxHtmlCell *cell = (wxHtmlCell*)p->Find( wxHTML_COND_ISIMAGEMAP, (const void*)(&m_MapName));
        if (!cell) 
	    {
            ((wxString&)m_MapName).Clear();
            return wxHtmlCell::GetLink( x, y );
        }
        {   // dirty hack, ask Joel why he fills m_ImageMap in this place
            // THE problem is that we're in const method and we can't modify m_ImageMap
            wxHtmlImageMapCell **cx = (wxHtmlImageMapCell**)(&m_ImageMap);
            *cx = (wxHtmlImageMapCell*)cell;
        }
    }
    return m_ImageMap->GetLink( x, y );
}


//--------------------------------------------------------------------------------
// tag handler
//--------------------------------------------------------------------------------

TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")

    TAG_HANDLER_PROC(tag)
    {
        if (tag.GetName() == wxT("IMG")) 
	    {
            if (tag.HasParam(wxT("SRC"))) 
	        {
                int w = -1, h = -1;
                int al;
                wxFSFile *str;
                wxString tmp = tag.GetParam(wxT("SRC"));
                wxString mn = wxEmptyString;

                str = m_WParser->GetFS()->OpenFile(tmp);
                if (tag.HasParam(wxT("WIDTH"))) tag.ScanParam(wxT("WIDTH"), wxT("%i"), &w);
                if (tag.HasParam(wxT("HEIGHT"))) tag.ScanParam(wxT("HEIGHT"), wxT("%i"), &h);
                al = wxHTML_ALIGN_BOTTOM;
                if (tag.HasParam(wxT("ALIGN"))) 
		        {
                    wxString alstr = tag.GetParam(wxT("ALIGN"));
                    alstr.MakeUpper();  // for the case alignment was in ".."
                    if (alstr == wxT("TEXTTOP")) al = wxHTML_ALIGN_TOP;
                    else if ((alstr == wxT("CENTER")) || (alstr == wxT("ABSCENTER"))) al = wxHTML_ALIGN_CENTER;
                }
                if (tag.HasParam(wxT("USEMAP"))) 
		        {
                    mn = tag.GetParam( wxT("USEMAP") );
                    if (mn[ (unsigned int) 0 ] == wxT('#')) 
		            {
                        mn = mn.Mid( 1 );
                    }
                }
                wxHtmlImageCell *cel = NULL;
                if (str) 
		        {
                    cel = new wxHtmlImageCell(str, w, h, m_WParser->GetPixelScale(), al, mn);
                    cel->SetLink(m_WParser->GetLink());
                    m_WParser->GetContainer()->InsertCell(cel);
                    delete str;
                }
            }
        }
        if (tag.GetName() == wxT("MAP")) 
	    {
            m_WParser->CloseContainer();
            m_WParser->OpenContainer();
            if (tag.HasParam(wxT("NAME"))) 
	        {
                wxString tmp = tag.GetParam(wxT("NAME"));
                wxHtmlImageMapCell *cel = new wxHtmlImageMapCell( tmp );
                m_WParser->GetContainer()->InsertCell( cel );
            }
            ParseInner( tag );
            m_WParser->CloseContainer();
            m_WParser->OpenContainer();
        }
        if (tag.GetName() == wxT("AREA")) 
	    {
            if (tag.HasParam(wxT("SHAPE"))) 
	        {
                wxString tmp = tag.GetParam(wxT("SHAPE"));
                wxString coords = wxEmptyString;
                tmp.MakeUpper();
                wxHtmlImageMapAreaCell *cel = NULL;
                if (tag.HasParam(wxT("COORDS"))) 
		        {
                    coords = tag.GetParam(wxT("COORDS"));
                }
                if (tmp == wxT("POLY")) 
		        {
                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::POLY, coords, m_WParser->GetPixelScale() );
                } 
		        else if (tmp == wxT("CIRCLE")) 
		        {
                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::CIRCLE, coords, m_WParser->GetPixelScale() );
                } 
		        else if (tmp == wxT("RECT")) 
			    {
                    cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::RECT, coords, m_WParser->GetPixelScale() );
                }
                if (cel != NULL && tag.HasParam(wxT("HREF"))) 
		        {
                    wxString tmp = tag.GetParam(wxT("HREF"));
                    wxString target = wxEmptyString;
                    if (tag.HasParam(wxT("TARGET"))) target = tag.GetParam(wxT("TARGET"));
                    cel->SetLink( wxHtmlLinkInfo(tmp, target));
                }
                if (cel != NULL) m_WParser->GetContainer()->InsertCell( cel );
            }
        }

        return FALSE;
    }

TAG_HANDLER_END(IMG)


TAGS_MODULE_BEGIN(Image)

    TAGS_MODULE_ADD(IMG)

TAGS_MODULE_END(Image)


#endif
Commit	Line	Data
5526e819	1	/////////////////////////////////////////////////////////////////////////////
c88293a4	2	// Name: m_image.cpp
5526e819 VS	3	// Purpose: wxHtml module for displaying images
5526e819 VS	4	// Author: Vaclav Slavik
69941f05	5	// RCS-ID: $Id$
25082126	6	// Copyright: (c) 1999 Vaclav Slavik, Joel Lucsy
5526e819 VS	7	// Licence: wxWindows Licence
	8	/////////////////////////////////////////////////////////////////////////////
	9
3364ab79 RS	10	#ifdef __GNUG__
	11	#pragma implementation
	12	#endif
	13
25082126	14	#include "wx/wxprec.h"
3364ab79	15
5526e819	16	#include "wx/defs.h"
f6bcfd97	17	#if wxUSE_HTML && wxUSE_STREAMS
5526e819	18
3364ab79 RS	19	#ifdef __BORDLANDC__
	20	#pragma hdrstop
	21	#endif
	22
	23	#ifndef WXPRECOMP
25082126	24	#include "wx/wx.h"
3364ab79 RS	25	#endif
3364ab79 RS	26
69941f05 VS	27	#include "wx/html/forcelnk.h"
69941f05 VS	28	#include "wx/html/m_templ.h"
5526e819	29
f42b1601	30
25082126 VS	31	#include "wx/image.h"
	32	#include "wx/dynarray.h"
	33
	34	#include <math.h>
	35	#include <float.h>
5526e819	36
c88293a4	37	FORCE_LINK_ME(m_image)
5526e819 VS	38
5526e819 VS	39
25082126 VS	40
	41
	42	WX_DECLARE_OBJARRAY(int, CoordArray);
3096bd2f	43	#include "wx/arrimpl.cpp" // this is a magic incantation which must be done!
25082126 VS	44	WX_DEFINE_OBJARRAY(CoordArray);
	45
	46
	47	//--------------------------------------------------------------------------------
	48	// wxHtmlImageMapAreaCell
	49	// 0-width, 0-height cell that represents single area in imagemap
	50	// (it's GetLink is called from wxHtmlImageCell's)
	51	//--------------------------------------------------------------------------------
	52
	53	class wxHtmlImageMapAreaCell : public wxHtmlCell
	54	{
01325161 VS	55	public:
	56	enum celltype { CIRCLE, RECT, POLY };
	57	protected:
	58	CoordArray coords;
	59	celltype type;
edbd0635	60	int radius;
01325161	61	public:
edbd0635	62	wxHtmlImageMapAreaCell( celltype t, wxString &coords, double pixel_scale = 1.0);
846914d1	63	virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
25082126 VS	64	};
	65
	66
	67
	68
	69
edbd0635	70	wxHtmlImageMapAreaCell::wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::celltype t, wxString &incoords, double pixel_scale )
25082126	71	{
edbd0635	72	int i;
01325161 VS	73	wxString x = incoords, y;
	74
	75	type = t;
4f9297b0 VS	76	while ((i = x.Find( ',' )) != -1)
4f9297b0 VS	77	{
edbd0635	78	coords.Add( (int)(pixel_scale * (double)wxAtoi( x.Left( i ).c_str())) );
01325161 VS	79	x = x.Mid( i + 1 );
01325161 VS	80	}
edbd0635	81	coords.Add( (int)(pixel_scale * (double)wxAtoi( x.c_str())) );
25082126 VS	82	}
25082126 VS	83
846914d1	84	wxHtmlLinkInfo *wxHtmlImageMapAreaCell::GetLink( int x, int y ) const
25082126	85	{
4f9297b0 VS	86	switch (type)
4f9297b0 VS	87	{
01325161 VS	88	case RECT:
01325161 VS	89	{
edbd0635	90	int l, t, r, b;
01325161 VS	91
	92	l = coords[ 0 ];
	93	t = coords[ 1 ];
	94	r = coords[ 2 ];
	95	b = coords[ 3 ];
4f9297b0 VS	96	if (x >= l && x <= r && y >= t && y <= b)
4f9297b0 VS	97	{
01325161 VS	98	return m_Link;
	99	}
	100	break;
	101	}
	102	case CIRCLE:
	103	{
edbd0635 VS	104	int l, t, r;
edbd0635 VS	105	double d;
01325161 VS	106
	107	l = coords[ 0 ];
	108	t = coords[ 1 ];
	109	r = coords[ 2 ];
	110	d = sqrt( (double) (((x - l) * (x - l)) + ((y - t) * (y - t))) );
4f9297b0 VS	111	if (d < (double)r)
4f9297b0 VS	112	{
01325161 VS	113	return m_Link;
	114	}
	115	}
	116	break;
	117	case POLY:
	118	{
4f9297b0 VS	119	if (coords.GetCount() >= 6)
4f9297b0 VS	120	{
edbd0635 VS	121	int intersects = 0;
	122	int wherex = x;
	123	int wherey = y;
	124	int totalv = coords.GetCount() / 2;
	125	int totalc = totalv * 2;
	126	int xval = coords[totalc - 2];
	127	int yval = coords[totalc - 1];
	128	int end = totalc;
	129	int pointer = 1;
01325161	130
4f9297b0 VS	131	if ((yval >= wherey) != (coords[pointer] >= wherey))
	132	{
	133	if ((xval >= wherex) == (coords[0] >= wherex))
	134	{
01325161	135	intersects += (xval >= wherex) ? 1 : 0;
4f9297b0 VS	136	}
	137	else
	138	{
01325161 VS	139	intersects += ((xval - (yval - wherey) *
	140	(coords[0] - xval) /
	141	(coords[pointer] - yval)) >= wherex) ? 1 : 0;
	142	}
	143	}
	144
4f9297b0 VS	145	while (pointer < end)
4f9297b0 VS	146	{
01325161 VS	147	yval = coords[pointer];
01325161 VS	148	pointer += 2;
4f9297b0 VS	149	if (yval >= wherey)
	150	{
	151	while ((pointer < end) && (coords[pointer] >= wherey))
	152	{
01325161 VS	153	pointer += 2;
01325161 VS	154	}
4f9297b0 VS	155	if (pointer >= end)
4f9297b0 VS	156	{
01325161 VS	157	break;
	158	}
	159	if ((coords[pointer - 3] >= wherex) ==
	160	(coords[pointer - 1] >= wherex)) {
	161	intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
4f9297b0 VS	162	}
	163	else
	164	{
01325161 VS	165	intersects +=
	166	((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
	167	(coords[pointer - 1] - coords[pointer - 3]) /
	168	(coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
	169	}
4f9297b0 VS	170	}
	171	else
	172	{
	173	while ((pointer < end) && (coords[pointer] < wherey))
	174	{
01325161 VS	175	pointer += 2;
01325161 VS	176	}
4f9297b0 VS	177	if (pointer >= end)
4f9297b0 VS	178	{
01325161 VS	179	break;
	180	}
	181	if ((coords[pointer - 3] >= wherex) ==
4f9297b0 VS	182	(coords[pointer - 1] >= wherex))
4f9297b0 VS	183	{
01325161	184	intersects += (coords[pointer - 3] >= wherex) ? 1 : 0;
4f9297b0 VS	185	}
	186	else
	187	{
01325161 VS	188	intersects +=
	189	((coords[pointer - 3] - (coords[pointer - 2] - wherey) *
	190	(coords[pointer - 1] - coords[pointer - 3]) /
	191	(coords[pointer] - coords[pointer - 2])) >= wherex) ? 1 : 0;
	192	}
	193	}
	194	}
4f9297b0 VS	195	if ((intersects & 1) != 0)
4f9297b0 VS	196	{
01325161 VS	197	return m_Link;
	198	}
	199	}
	200	}
	201	break;
	202	}
4f9297b0 VS	203
	204	if (m_Next)
	205	{
edbd0635	206	wxHtmlImageMapAreaCell a = (wxHtmlImageMapAreaCell)m_Next;
01325161 VS	207	return a->GetLink( x, y );
01325161 VS	208	}
846914d1	209	return NULL;
25082126 VS	210	}
	211
	212
	213
	214
	215
	216
	217
	218
	219	//--------------------------------------------------------------------------------
	220	// wxHtmlImageMapCell
	221	// 0-width, 0-height cell that represents map from imagemaps
	222	// it is always placed before wxHtmlImageMapAreaCells
efba2b89	223	// It responds to Find(wxHTML_COND_ISIMAGEMAP)
25082126 VS	224	//--------------------------------------------------------------------------------
	225
	226
	227	class wxHtmlImageMapCell : public wxHtmlCell
	228	{
01325161 VS	229	public:
	230	wxHtmlImageMapCell( wxString &name );
	231	protected:
	232	wxString m_Name;
	233	public:
846914d1	234	virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
01325161	235	virtual const wxHtmlCell Find( int cond, const void param ) const;
25082126 VS	236	};
	237
	238
	239	wxHtmlImageMapCell::wxHtmlImageMapCell( wxString &name )
	240	{
01325161	241	m_Name = name ;
25082126 VS	242	}
25082126 VS	243
846914d1	244	wxHtmlLinkInfo *wxHtmlImageMapCell::GetLink( int x, int y ) const
25082126	245	{
edbd0635	246	wxHtmlImageMapAreaCell a = (wxHtmlImageMapAreaCell)m_Next;
01325161 VS	247	if (a)
	248	return a->GetLink( x, y );
	249	return wxHtmlCell::GetLink( x, y );
25082126 VS	250	}
	251
	252	const wxHtmlCell wxHtmlImageMapCell::Find( int cond, const void param ) const
	253	{
4f9297b0 VS	254	if (cond == wxHTML_COND_ISIMAGEMAP)
4f9297b0 VS	255	{
01325161 VS	256	if (m_Name == ((wxString)(param)))
	257	return this;
	258	}
	259	return wxHtmlCell::Find(cond, param);
25082126 VS	260	}
	261
	262
	263
	264
	265
5526e819 VS	266	//--------------------------------------------------------------------------------
	267	// wxHtmlImageCell
	268	// Image/bitmap
	269	//--------------------------------------------------------------------------------
	270
	271	class wxHtmlImageCell : public wxHtmlCell
	272	{
	273	public:
	274	wxBitmap *m_Image;
b5c01940	275	double m_Scale;
01325161 VS	276	wxHtmlImageMapCell *m_ImageMap;
01325161 VS	277	wxString m_MapName;
5526e819	278
37a1f3f6	279	wxHtmlImageCell(wxFSFile *input, int w = -1, int h = -1, double scale = 1.0, int align = wxHTML_ALIGN_BOTTOM, wxString mapname = wxEmptyString);
01325161	280	~wxHtmlImageCell() {if (m_Image) delete m_Image; }
5526e819	281	void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
846914d1	282	virtual wxHtmlLinkInfo *GetLink( int x = 0, int y = 0 ) const;
5526e819 VS	283	};
	284
	285
	286
25082126	287
5526e819 VS	288	//--------------------------------------------------------------------------------
	289	// wxHtmlImageCell
	290	//--------------------------------------------------------------------------------
	291
37a1f3f6	292	wxHtmlImageCell::wxHtmlImageCell(wxFSFile *input, int w, int h, double scale, int align, wxString mapname) : wxHtmlCell()
5526e819 VS	293	{
5526e819 VS	294	wxImage *img;
b5c01940	295	int ww, hh, bw, bh;
4f9297b0	296	wxInputStream *s = input->GetStream();
b5c01940 VS	297
b5c01940 VS	298	m_Scale = scale;
72aa4a98	299	img = new wxImage(*s, wxBITMAP_TYPE_ANY);
5526e819	300	m_Image = NULL;
4f9297b0 VS	301	if (img && (img->Ok()))
	302	{
	303	ww = img->GetWidth();
	304	hh = img->GetHeight();
b5c01940 VS	305	if (w != -1) bw = w; else bw = ww;
b5c01940 VS	306	if (h != -1) bh = h; else bh = hh;
37a1f3f6	307
b5c01940 VS	308	m_Width = (int)(scale * (double)bw);
b5c01940 VS	309	m_Height = (int)(scale * (double)bh);
37a1f3f6	310
b5c01940	311	if ((bw != ww) \|\| (bh != hh))
4f9297b0	312	{
b5c01940	313	wxImage img2 = img->Scale(bw, bh);
5526e819	314	m_Image = new wxBitmap(img2.ConvertToBitmap());
4f9297b0 VS	315	}
	316	else
	317	m_Image = new wxBitmap(img->ConvertToBitmap());
5526e819 VS	318	delete img;
5526e819 VS	319	}
4f9297b0 VS	320	switch (align)
4f9297b0 VS	321	{
efba2b89	322	case wxHTML_ALIGN_TOP :
01325161 VS	323	m_Descent = m_Height;
01325161 VS	324	break;
efba2b89	325	case wxHTML_ALIGN_CENTER :
01325161 VS	326	m_Descent = m_Height / 2;
	327	break;
	328	case wxHTML_ALIGN_BOTTOM :
	329	default :
	330	m_Descent = 0;
	331	break;
5526e819	332	}
25082126 VS	333
	334	m_ImageMap = NULL;
	335	m_MapName = mapname;
db98870d	336	SetCanLiveOnPagebreak(FALSE);
5526e819 VS	337	}
	338
	339
	340
	341	void wxHtmlImageCell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
	342	{
	343	if (m_Image)
b5c01940 VS	344	{
	345	double us_x, us_y;
	346	dc.GetUserScale(&us_x, &us_y);
	347	dc.SetUserScale(us_x * m_Scale, us_y * m_Scale);
	348
	349	// dc.DrawBitmap(m_Image, x + m_PosX, y + m_PosY, (m_Image->GetMask() != (wxMask) 0));
7a5e6267 JS	350	dc.DrawBitmap(*m_Image, (int) ((x + m_PosX) / m_Scale),
7a5e6267 JS	351	(int) ((y + m_PosY) / m_Scale), TRUE);
b5c01940 VS	352	dc.SetUserScale(us_x, us_y);
b5c01940 VS	353	}
5526e819 VS	354	wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
	355	}
	356
846914d1	357	wxHtmlLinkInfo *wxHtmlImageCell::GetLink( int x, int y ) const
25082126	358	{
01325161 VS	359	if (m_MapName.IsEmpty())
01325161 VS	360	return wxHtmlCell::GetLink( x, y );
4f9297b0 VS	361	if (!m_ImageMap)
4f9297b0 VS	362	{
edbd0635	363	wxHtmlContainerCell p, op;
01325161	364	op = p = GetParent();
4f9297b0 VS	365	while (p)
4f9297b0 VS	366	{
01325161 VS	367	op = p;
	368	p = p->GetParent();
	369	}
	370	p = op;
	371	wxHtmlCell cell = (wxHtmlCell)p->Find( wxHTML_COND_ISIMAGEMAP, (const void*)(&m_MapName));
4f9297b0 VS	372	if (!cell)
4f9297b0 VS	373	{
01325161 VS	374	((wxString&)m_MapName).Clear();
	375	return wxHtmlCell::GetLink( x, y );
	376	}
4f9297b0	377	{ // dirty hack, ask Joel why he fills m_ImageMap in this place
01325161	378	// THE problem is that we're in const method and we can't modify m_ImageMap
25082126	379	wxHtmlImageMapCell cx = (wxHtmlImageMapCell)(&m_ImageMap);
01325161	380	cx = (wxHtmlImageMapCell)cell;
25082126	381	}
01325161 VS	382	}
01325161 VS	383	return m_ImageMap->GetLink( x, y );
25082126	384	}
5526e819 VS	385
	386
	387
	388	//--------------------------------------------------------------------------------
	389	// tag handler
	390	//--------------------------------------------------------------------------------
	391
01325161	392	TAG_HANDLER_BEGIN(IMG, "IMG,MAP,AREA")
5526e819 VS	393
	394	TAG_HANDLER_PROC(tag)
	395	{
4f9297b0 VS	396	if (tag.GetName() == wxT("IMG"))
	397	{
	398	if (tag.HasParam(wxT("SRC")))
	399	{
01325161 VS	400	int w = -1, h = -1;
	401	int al;
	402	wxFSFile *str;
0413cec5	403	wxString tmp = tag.GetParam(wxT("SRC"));
01325161 VS	404	wxString mn = wxEmptyString;
01325161 VS	405
4f9297b0	406	str = m_WParser->GetFS()->OpenFile(tmp);
01325161 VS	407	if (tag.HasParam(wxT("WIDTH"))) tag.ScanParam(wxT("WIDTH"), wxT("%i"), &w);
	408	if (tag.HasParam(wxT("HEIGHT"))) tag.ScanParam(wxT("HEIGHT"), wxT("%i"), &h);
	409	al = wxHTML_ALIGN_BOTTOM;
4f9297b0 VS	410	if (tag.HasParam(wxT("ALIGN")))
4f9297b0 VS	411	{
0413cec5	412	wxString alstr = tag.GetParam(wxT("ALIGN"));
01325161	413	alstr.MakeUpper(); // for the case alignment was in ".."
0413cec5 OK	414	if (alstr == wxT("TEXTTOP")) al = wxHTML_ALIGN_TOP;
0413cec5 OK	415	else if ((alstr == wxT("CENTER")) \|\| (alstr == wxT("ABSCENTER"))) al = wxHTML_ALIGN_CENTER;
01325161	416	}
4f9297b0 VS	417	if (tag.HasParam(wxT("USEMAP")))
4f9297b0 VS	418	{
0413cec5	419	mn = tag.GetParam( wxT("USEMAP") );
4f9297b0 VS	420	if (mn[ (unsigned int) 0 ] == wxT('#'))
4f9297b0 VS	421	{
01325161 VS	422	mn = mn.Mid( 1 );
	423	}
	424	}
	425	wxHtmlImageCell *cel = NULL;
4f9297b0 VS	426	if (str)
	427	{
	428	cel = new wxHtmlImageCell(str, w, h, m_WParser->GetPixelScale(), al, mn);
	429	cel->SetLink(m_WParser->GetLink());
	430	m_WParser->GetContainer()->InsertCell(cel);
01325161 VS	431	delete str;
	432	}
	433	}
	434	}
4f9297b0 VS	435	if (tag.GetName() == wxT("MAP"))
4f9297b0 VS	436	{
01325161 VS	437	m_WParser->CloseContainer();
01325161 VS	438	m_WParser->OpenContainer();
4f9297b0 VS	439	if (tag.HasParam(wxT("NAME")))
4f9297b0 VS	440	{
0413cec5	441	wxString tmp = tag.GetParam(wxT("NAME"));
01325161 VS	442	wxHtmlImageMapCell *cel = new wxHtmlImageMapCell( tmp );
	443	m_WParser->GetContainer()->InsertCell( cel );
	444	}
	445	ParseInner( tag );
	446	m_WParser->CloseContainer();
	447	m_WParser->OpenContainer();
	448	}
4f9297b0 VS	449	if (tag.GetName() == wxT("AREA"))
	450	{
	451	if (tag.HasParam(wxT("SHAPE")))
	452	{
0413cec5	453	wxString tmp = tag.GetParam(wxT("SHAPE"));
edbd0635	454	wxString coords = wxEmptyString;
01325161 VS	455	tmp.MakeUpper();
01325161 VS	456	wxHtmlImageMapAreaCell *cel = NULL;
4f9297b0 VS	457	if (tag.HasParam(wxT("COORDS")))
4f9297b0 VS	458	{
0413cec5	459	coords = tag.GetParam(wxT("COORDS"));
01325161	460	}
4f9297b0 VS	461	if (tmp == wxT("POLY"))
	462	{
	463	cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::POLY, coords, m_WParser->GetPixelScale() );
	464	}
	465	else if (tmp == wxT("CIRCLE"))
	466	{
	467	cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::CIRCLE, coords, m_WParser->GetPixelScale() );
	468	}
	469	else if (tmp == wxT("RECT"))
	470	{
	471	cel = new wxHtmlImageMapAreaCell( wxHtmlImageMapAreaCell::RECT, coords, m_WParser->GetPixelScale() );
01325161	472	}
4f9297b0 VS	473	if (cel != NULL && tag.HasParam(wxT("HREF")))
4f9297b0 VS	474	{
0413cec5	475	wxString tmp = tag.GetParam(wxT("HREF"));
846914d1	476	wxString target = wxEmptyString;
0413cec5	477	if (tag.HasParam(wxT("TARGET"))) target = tag.GetParam(wxT("TARGET"));
846914d1	478	cel->SetLink( wxHtmlLinkInfo(tmp, target));
01325161 VS	479	}
	480	if (cel != NULL) m_WParser->GetContainer()->InsertCell( cel );
	481	}
	482	}
5526e819 VS	483
	484	return FALSE;
	485	}
	486
01325161	487	TAG_HANDLER_END(IMG)
5526e819 VS	488
	489
	490
	491	TAGS_MODULE_BEGIN(Image)
	492
	493	TAGS_MODULE_ADD(IMG)
	494
	495	TAGS_MODULE_END(Image)
	496
	497
3364ab79	498	#endif