support underlined text in wxCairoContext (Marcin's patch) (closes #9846)

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

diff --git a/src/html/m_pre.cpp b/src/html/m_pre.cpp
index f4999ee76bd6f921f9e6aad62c8cb7e32a8636f5..1a0ef36813be6f8df7a8f25c64c5aa332cc04cb9 100644 (file)
--- a/src/html/m_pre.cpp
+++ b/src/html/m_pre.cpp
@@ -1,28 +1,22 @@
 /////////////////////////////////////////////////////////////////////////////
 /////////////////////////////////////////////////////////////////////////////

-// Name:        m_pre.cpp
+// Name:        src/html/m_pre.cpp

 // Purpose:     wxHtml module for <PRE> ... </PRE> tag (code citation)
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik
 // Purpose:     wxHtml module for <PRE> ... </PRE> tag (code citation)
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
 // Copyright:   (c) 1999 Vaclav Slavik

-// Licence:     wxWindows Licence
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 /////////////////////////////////////////////////////////////////////////////
 

-#ifdef __GNUG__
-#pragma implementation
-#endif
-

 #include "wx/wxprec.h"
 
 #include "wx/wxprec.h"
 

-#include "wx/defs.h"
-#if wxUSE_HTML
-#ifdef __BORDLANDC__
-#pragma hdrstop
+#ifdef __BORLANDC__
+    #pragma hdrstop

 #endif
 
 #endif
 

-#ifndef WXPRECOMP
-#include "wx/wx.h"
-#endif
+#if wxUSE_HTML && wxUSE_STREAMS

 
 

+#ifndef WX_PRECOMP
+#endif

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


@@ -33,129 +27,108 @@
 
 FORCE_LINK_ME(m_pre)
 
 
 FORCE_LINK_ME(m_pre)
 

-
-//-----------------------------------------------------------------------------
-// wxHtmlCodeCell
-//-----------------------------------------------------------------------------
-
-class wxHtmlPRECell : public wxHtmlCell
+// replaces '\t', ' ' and '\n' with HTML markup:
+static wxString LINKAGEMODE HtmlizeLinebreaks(const wxString& str)

 {
 {

-    private:
-        wxString** m_Text;
-                // list of wxString objects.
-        int m_LinesCnt;
-                // number of lines
-        int m_LineHeight;
-                // height of single line of text
-
-    public:
-        wxHtmlPRECell(const wxString& s, wxDC& dc);
-        ~wxHtmlPRECell();
-        void Draw(wxDC& dc, int x, int y, int view_y1, int view_y2);
-};
-
-
-wxHtmlPRECell::wxHtmlPRECell(const wxString& s, wxDC& dc) : wxHtmlCell()
-{
-    wxStringTokenizer tokenizer(s, "\n");
-    wxString tmp;
-    long int x, z;
-    int i;
-
-    m_LineHeight = dc.GetCharHeight();
-    m_LinesCnt = 0;
-    m_Text = NULL;
-    m_Width = m_Height = 0;
-
-    i = 0;
-    while (tokenizer.HasMoreTokens()) {
-        if (i % 10 == 0) m_Text = (wxString**) realloc(m_Text, sizeof(wxString*) * (i + 10));
-        tmp = tokenizer.NextToken();
-        tmp.Replace(wxT("&copy;"), wxT("(c)"), TRUE);
-        tmp.Replace(wxT("&nbsp;"), wxT(" "), TRUE);
-        tmp.Replace(wxT("&quot;"), wxT("\""), TRUE);
-        tmp.Replace(wxT("&lt;"), wxT("<"), TRUE);
-        tmp.Replace(wxT("&gt;"), wxT(">"), TRUE);
-        tmp.Replace(wxT("&amp;"), wxT("&"), TRUE);
-        tmp.Replace(wxT("\t"), wxT("        "), TRUE);
-        tmp.Replace(wxT("\r"), wxT(""), TRUE);
-        m_Text[i++] = new wxString(tmp);
-
-        dc.GetTextExtent(tmp, &x, &z, &z);
-        if (x > m_Width) m_Width = x;
-        m_Height += m_LineHeight;
-        m_LinesCnt++;
-    }
-}
-
-
-
-wxHtmlPRECell::~wxHtmlPRECell()
-{
-    for (int i = 0; i < m_LinesCnt; i++) delete m_Text[i];
-    free(m_Text);
-}
+    wxString out;
+    out.reserve(str.length()); // we'll certainly need at least that

 
 

+    const wxString::const_iterator end = str.end();
+    for ( wxString::const_iterator i = str.begin(); i != end; ++i )
+    {
+        switch ( (*i).GetValue() )
+        {
+            case '<':
+                while ( i != end && *i != '>' )
+                {
+                    out << *i++;
+                }
+                out << '>';
+                if ( i == end )
+                    return out;
+                break;
+
+            // We need to translate any line break into exactly one <br>.
+            // Quoting HTML spec: "A line break is defined to be a carriage
+            // return (&#x000D;), a line feed (&#x000A;), or a carriage
+            // return/line feed pair."
+            case '\r':
+                {
+                    wxString::const_iterator j(i + 1);
+                    if ( j != end && *j == '\n' )
+                        i = j;
+                }
+                // fall through
+            case '\n':
+                out << "<br>";
+                break;
+
+            default:
+                out << *i;
+                break;
+        }
+    }

 
 

-void wxHtmlPRECell::Draw(wxDC& dc, int x, int y, int view_y1, int view_y2)
-{
-    for (int i = 0; i < m_LinesCnt; i++)
-        dc.DrawText(*(m_Text[i]), x + m_PosX, y + m_PosY + m_LineHeight * i);
-
-    wxHtmlCell::Draw(dc, x, y, view_y1, view_y2);
+    return out;

 }
 
 
 }
 
 

-
-

 //-----------------------------------------------------------------------------
 // The list handler:
 //-----------------------------------------------------------------------------
 
 
 TAG_HANDLER_BEGIN(PRE, "PRE")
 //-----------------------------------------------------------------------------
 // The list handler:
 //-----------------------------------------------------------------------------
 
 
 TAG_HANDLER_BEGIN(PRE, "PRE")

+    TAG_HANDLER_CONSTR(PRE) { }

 
     TAG_HANDLER_PROC(tag)
     {
         wxHtmlContainerCell *c;
 
 
     TAG_HANDLER_PROC(tag)
     {
         wxHtmlContainerCell *c;
 

-        int fixed = m_WParser -> GetFontFixed(),
-            italic = m_WParser -> GetFontItalic(),
-            underlined = m_WParser -> GetFontUnderlined(),
-            bold = m_WParser -> GetFontBold(),
-            fsize = m_WParser -> GetFontSize();
-
-        m_WParser -> CloseContainer();
-        c = m_WParser -> OpenContainer();
-        c -> SetAlignHor(wxHTML_ALIGN_LEFT);
-        c -> SetIndent(m_WParser -> GetCharHeight(), wxHTML_INDENT_VERTICAL);
-
-        m_WParser -> SetFontUnderlined(FALSE);
-        m_WParser -> SetFontBold(FALSE);
-        m_WParser -> SetFontItalic(FALSE);
-        m_WParser -> SetFontFixed(TRUE);
-        m_WParser -> SetFontSize(3);
-        c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
-
-        {
-            wxString cit;
-            wxEncodingConverter *encconv = m_WParser -> GetEncodingConverter();
-            cit = m_WParser -> GetSource() -> Mid(tag.GetBeginPos(), tag.GetEndPos1() - tag.GetBeginPos());
-            c -> InsertCell(new wxHtmlPRECell(
-                                encconv ? encconv -> Convert(cit) : cit,
-                                *(m_WParser -> GetDC())));
-        }
-
-        m_WParser -> SetFontUnderlined(underlined);
-        m_WParser -> SetFontBold(bold);
-        m_WParser -> SetFontItalic(italic);
-        m_WParser -> SetFontFixed(fixed);
-        m_WParser -> SetFontSize(fsize);
-        c -> InsertCell(new wxHtmlFontCell(m_WParser -> CreateCurrentFont()));
-
-        m_WParser -> CloseContainer();
-        m_WParser -> OpenContainer();
-        return TRUE;
+        const int fixed = m_WParser->GetFontFixed();
+        const int italic = m_WParser->GetFontItalic();
+        const int underlined = m_WParser->GetFontUnderlined();
+        const int bold = m_WParser->GetFontBold();
+        const int fsize = m_WParser->GetFontSize();
+        const wxHtmlWinParser::WhitespaceMode whitespace =
+            m_WParser->GetWhitespaceMode();
+
+        c = m_WParser->GetContainer();
+        m_WParser->SetWhitespaceMode(wxHtmlWinParser::Whitespace_Pre);
+        m_WParser->SetFontUnderlined(false);
+        m_WParser->SetFontBold(false);
+        m_WParser->SetFontItalic(false);
+        m_WParser->SetFontFixed(true);
+        m_WParser->SetFontSize(3);
+        c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+
+        m_WParser->CloseContainer();
+        c = m_WParser->OpenContainer();
+        c->SetWidthFloat(tag);
+        c = m_WParser->OpenContainer();
+        c->SetAlignHor(wxHTML_ALIGN_LEFT);
+        c->SetIndent(m_WParser->GetCharHeight(), wxHTML_INDENT_TOP);
+
+        wxString srcMid = m_WParser->GetInnerSource(tag);
+
+        // setting Whitespace_Pre mode takes care of spaces and TABs, but
+        // not linebreaks, so we have to translate them into <br> by
+        // calling HtmlizeLinebreaks() here
+        ParseInnerSource(HtmlizeLinebreaks(srcMid));
+
+        m_WParser->CloseContainer();
+        m_WParser->CloseContainer();
+        c = m_WParser->OpenContainer();
+
+        m_WParser->SetWhitespaceMode(whitespace);
+        m_WParser->SetFontUnderlined(underlined);
+        m_WParser->SetFontBold(bold);
+        m_WParser->SetFontItalic(italic);
+        m_WParser->SetFontFixed(fixed);
+        m_WParser->SetFontSize(fsize);
+        c->InsertCell(new wxHtmlFontCell(m_WParser->CreateCurrentFont()));
+
+        return true;

     }
 
 TAG_HANDLER_END(PRE)
     }
 
 TAG_HANDLER_END(PRE)