X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f5595af61ed87fec9bd5dd7f62c66089bd90bc57..062dfc9a96dc9e796c53544f41ff92dc47f26e82:/src/html/winpars.cpp?ds=sidebyside diff --git a/src/html/winpars.cpp b/src/html/winpars.cpp index 1769f56c26..916c43a989 100644 --- a/src/html/winpars.cpp +++ b/src/html/winpars.cpp @@ -47,11 +47,14 @@ wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindowInterface *wndIface) m_CharHeight = m_CharWidth = 0; m_UseLink = false; #if !wxUSE_UNICODE + m_nbsp = 0; m_EncConv = NULL; m_InputEnc = wxFONTENCODING_ISO8859_1; m_OutputEnc = wxFONTENCODING_DEFAULT; #endif + m_whitespaceMode = Whitespace_Normal; m_lastWordCell = NULL; + m_posColumn = 0; { int i, j, k, l, m; @@ -199,7 +202,7 @@ void wxHtmlWinParser::InitParser(const wxString& source) m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE; m_FontSize = 3; //default one CreateCurrentFont(); // we're selecting default font into - + // we're not using GetCharWidth/Height() because of // differences under X and win wxCoord w,h; @@ -342,97 +345,180 @@ wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type, return GetFS()->OpenFile(myurl, flags); } +#define NBSP_UNICODE_VALUE (wxChar(160)) +#if !wxUSE_UNICODE + #define CUR_NBSP_VALUE m_nbsp +#else + #define CUR_NBSP_VALUE NBSP_UNICODE_VALUE +#endif + void wxHtmlWinParser::AddText(const wxString& txt) { - register wxChar d; - int templen = 0; - wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */); +#if !wxUSE_UNICODE + if ( m_nbsp == 0 ) + m_nbsp = GetEntitiesParser()->GetCharForCode(NBSP_UNICODE_VALUE); +#endif - size_t lng = txt.length(); - if (lng+1 > m_tmpStrBufSize) + if ( m_whitespaceMode == Whitespace_Normal ) { - delete[] m_tmpStrBuf; - m_tmpStrBuf = new wxChar[lng+1]; - m_tmpStrBufSize = lng+1; - } - wxChar *temp = m_tmpStrBuf; - - wxString::const_iterator i = txt.begin(); - wxString::const_iterator end = txt.end(); + int templen = 0; - if (m_tmpLastWasSpace) - { - while ( (i < end) && - (*i == wxT('\n') || *i == wxT('\r') || *i == wxT(' ') || - *i == wxT('\t')) ) + size_t lng = txt.length(); + if (lng+1 > m_tmpStrBufSize) { - ++i; + delete[] m_tmpStrBuf; + m_tmpStrBuf = new wxChar[lng+1]; + m_tmpStrBufSize = lng+1; } - } + wxChar *temp = m_tmpStrBuf; - while (i < end) - { - size_t x = 0; - d = temp[templen++] = *i; - if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t'))) + wxString::const_iterator i = txt.begin(); + const wxString::const_iterator end = txt.end(); + + if (m_tmpLastWasSpace) { - ++i, ++x; while ( (i < end) && - (*i == wxT('\n') || *i == wxT('\r') || - *i == wxT(' ') || *i == wxT('\t')) ) + (*i == wxT('\n') || *i == wxT('\r') || *i == wxT(' ') || + *i == wxT('\t')) ) { ++i; - ++x; } } - else - ++i; - if (x) + while (i < end) + { + size_t x = 0; + const wxChar d = temp[templen++] = *i; + if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t'))) + { + ++i, ++x; + while ( (i < end) && + (*i == wxT('\n') || *i == wxT('\r') || + *i == wxT(' ') || *i == wxT('\t')) ) + { + ++i; + ++x; + } + } + else + { + ++i; + } + + if (x) + { + temp[templen-1] = wxT(' '); + FlushWordBuf(temp, templen); + m_tmpLastWasSpace = true; + } + } + + if (templen && (templen > 1 || temp[0] != wxT(' '))) { - temp[templen-1] = wxT(' '); - DoAddText(temp, templen, nbsp); - m_tmpLastWasSpace = true; + FlushWordBuf(temp, templen); + m_tmpLastWasSpace = false; } } - - if (templen && (templen > 1 || temp[0] != wxT(' '))) + else // m_whitespaceMode == Whitespace_Pre { - DoAddText(temp, templen, nbsp); + if ( txt.find(CUR_NBSP_VALUE) != wxString::npos ) + { + // we need to substitute spaces for   here just like we + // did in the Whitespace_Normal branch above + wxString txt2(txt); + txt2.Replace(CUR_NBSP_VALUE, ' '); + AddPreBlock(txt2); + } + else + { + AddPreBlock(txt); + } + + // don't eat any whitespace in
 block
         m_tmpLastWasSpace = false;
     }
 }
 
-void wxHtmlWinParser::DoAddText(wxChar *temp, int& templen, wxChar nbsp)
+void wxHtmlWinParser::FlushWordBuf(wxChar *buf, int& len)
 {
-    temp[templen] = 0;
-    templen = 0;
+    buf[len] = 0;
+
+    for ( int i = 0; i < len; i++ )
+    {
+        if ( buf[i] == CUR_NBSP_VALUE )
+            buf[i] = ' ';
+    }
+
 #if !wxUSE_UNICODE
     if (m_EncConv)
-        m_EncConv->Convert(temp);
+        m_EncConv->Convert(buf);
 #endif
-    size_t len = wxStrlen(temp);
-    for (size_t j = 0; j < len; j++)
-    {
-        if (temp[j] == nbsp)
-            temp[j] = wxT(' ');
-    }
 
-    wxHtmlCell *c = new wxHtmlWordCell(temp, *(GetDC()));
+    AddWord(wxString(buf, len));
+
+    len = 0;
+}
 
-    ApplyStateToCell(c);
+void wxHtmlWinParser::AddWord(wxHtmlWordCell *word)
+{
+    ApplyStateToCell(word);
 
-    m_Container->InsertCell(c);
-    ((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell);
-    m_lastWordCell = (wxHtmlWordCell*)c;
+    m_Container->InsertCell(word);
+    word->SetPreviousWord(m_lastWordCell);
+    m_lastWordCell = word;
 }
 
+void wxHtmlWinParser::AddPreBlock(const wxString& text)
+{
+    if ( text.find('\t') != wxString::npos )
+    {
+        wxString text2;
+        text2.reserve(text.length());
+
+        const wxString::const_iterator end = text.end();
+        wxString::const_iterator copyFrom = text.begin();
+        size_t pos = 0;
+        int posColumn = m_posColumn;
+        for ( wxString::const_iterator i = copyFrom; i != end; ++i, ++pos )
+        {
+            if ( *i == '\t' )
+            {
+                if ( copyFrom != i )
+                    text2.append(copyFrom, i);
+
+                const unsigned SPACES_PER_TAB = 8;
+                const size_t expandTo = SPACES_PER_TAB - posColumn % SPACES_PER_TAB;
+                text2.append(expandTo, ' ');
+
+                posColumn += expandTo;
+                copyFrom = i + 1;
+            }
+            else
+            {
+                ++posColumn;
+            }
+        }
+        if ( copyFrom != text.end() )
+            text2.append(copyFrom, text.end());
+
+        AddWord(new wxHtmlWordWithTabsCell(text2, text, m_posColumn, *(GetDC())));
+
+        m_posColumn = posColumn;
+    }
+    else
+    {
+        // no special formatting needed
+        AddWord(text);
+        m_posColumn += text.length();
+    }
+}
 
 
 wxHtmlContainerCell* wxHtmlWinParser::OpenContainer()
 {
     m_Container = new wxHtmlContainerCell(m_Container);
     m_Container->SetAlignHor(m_Align);
+    m_posColumn = 0;
     m_tmpLastWasSpace = true;
         /* to avoid space being first character in paragraph */
     return m_Container;
@@ -458,12 +544,46 @@ wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
 
 void wxHtmlWinParser::SetFontSize(int s)
 {
-    if (s < 1) s = 1;
-    else if (s > 7) s = 7;
+    if (s < 1)
+        s = 1;
+    else if (s > 7)
+        s = 7;
     m_FontSize = s;
 }
 
 
+void wxHtmlWinParser::SetDC(wxDC *dc, double pixel_scale, double font_scale)
+{
+    m_DC = dc;
+    m_PixelScale = pixel_scale;
+    m_FontScale = font_scale;
+}
+
+void wxHtmlWinParser::SetFontPointSize(int pt)
+{
+    if (pt <= m_FontsSizes[0])
+        m_FontSize = 1;
+    else if (pt >= m_FontsSizes[6])
+        m_FontSize = 7;
+    else
+    {
+        // Find the font closest to the given value with a simple linear search
+        // (binary search is not worth it here for so small number of elements)
+        for ( int n = 0; n < 6; n++ )
+        {
+            if ( (pt > m_FontsSizes[n]) && (pt <= m_FontsSizes[n + 1]) )
+            {
+                // In this range, find out which entry it is closest to
+                if ( (pt - m_FontsSizes[n]) < (m_FontsSizes[n + 1] - pt) )
+                    m_FontSize = n;
+                else
+                    m_FontSize = n + 1;
+
+                break;
+            }
+        }
+    }
+}
 
 wxFont* wxHtmlWinParser::CreateCurrentFont()
 {
@@ -486,15 +606,14 @@ wxFont* wxHtmlWinParser::CreateCurrentFont()
 #endif
                             ))
     {
-        delete *fontptr;
-        *fontptr = NULL;
+        wxDELETE(*fontptr);
     }
 
     if (*fontptr == NULL)
     {
         *faceptr = face;
         *fontptr = new wxFont(
-                       (int) (m_FontsSizes[fs] * m_PixelScale),
+                       (int) (m_FontsSizes[fs] * m_FontScale),
                        ff ? wxMODERN : wxSWISS,
                        fi ? wxITALIC : wxNORMAL,
                        fb ? wxBOLD : wxNORMAL,
@@ -520,8 +639,10 @@ void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link)
 
 void wxHtmlWinParser::SetFontFace(const wxString& face)
 {
-    if (GetFontFixed()) m_FontFaceFixed = face;
-    else m_FontFaceNormal = face;
+    if (GetFontFixed())
+        m_FontFaceFixed = face;
+    else
+        m_FontFaceNormal = face;
 
 #if !wxUSE_UNICODE
     if (m_InputEnc != wxFONTENCODING_DEFAULT)
@@ -543,36 +664,43 @@ void wxHtmlWinParser::ApplyStateToCell(wxHtmlCell *cell)
 #if !wxUSE_UNICODE
 void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
 {
+    // the character used for non-breakable space may change:
+    m_nbsp = 0;
+
     m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
-    if (m_EncConv)
-    {
-        delete m_EncConv;
-        m_EncConv = NULL;
-    }
+    wxDELETE(m_EncConv);
 
-    if (enc == wxFONTENCODING_DEFAULT) return;
+    if (enc == wxFONTENCODING_DEFAULT)
+        return;
 
     wxFontEncoding altfix, altnorm;
     bool availfix, availnorm;
 
-    // exact match?
     availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal);
     availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed);
+
     if (availnorm && availfix)
+    {
+        // exact match?
         m_OutputEnc = enc;
+    }
 
-    // alternatives?
     else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false) &&
              wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, false) &&
              altnorm == altfix)
+    {
+        // alternatives?
         m_OutputEnc = altnorm;
-
-    // at least normal face?
+    }
     else if (availnorm)
+    {
+        // at least normal face?
         m_OutputEnc = enc;
+    }
     else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false))
+    {
         m_OutputEnc = altnorm;
-
+    }
     else
     {
 #ifndef __WXMAC__
@@ -585,11 +713,16 @@ void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
 
     m_InputEnc = enc;
     if (m_OutputEnc == wxFONTENCODING_DEFAULT)
+    {
         GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM);
+    }
     else
+    {
         GetEntitiesParser()->SetEncoding(m_OutputEnc);
+    }
 
-    if (m_InputEnc == m_OutputEnc) return;
+    if (m_InputEnc == m_OutputEnc)
+        return;
 
     m_EncConv = new wxEncodingConverter();
     if (!m_EncConv->Init(m_InputEnc,
@@ -600,8 +733,7 @@ void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
         wxLogError(_("Failed to display HTML document in %s encoding"),
                    wxFontMapper::GetEncodingName(enc).c_str());
         m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
-        delete m_EncConv;
-        m_EncConv = NULL;
+        wxDELETE(m_EncConv);
     }
 }
 #endif