X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/3c115835b39194fd6c6852c96f5a9cccd2cc9aaa..82c126e50158efee5a1f46e1200be380c5199f8d:/src/html/winpars.cpp

diff --git a/src/html/winpars.cpp b/src/html/winpars.cpp
index 265572a844..5054e70b29 100644
--- a/src/html/winpars.cpp
+++ b/src/html/winpars.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        winpars.cpp
+// Name:        src/html/winpars.cpp
 // Purpose:     wxHtmlParser class (generic parser)
 // Author:      Vaclav Slavik
 // RCS-ID:      $Id$
@@ -9,24 +9,23 @@
 
 #include "wx/wxprec.h"
 
-#include "wx/defs.h"
-#if wxUSE_HTML && wxUSE_STREAMS
-
 #ifdef __BORLANDC__
-#pragma hdrstop
+    #pragma hdrstop
 #endif
 
-#ifndef WXPRECOMP
+#if wxUSE_HTML && wxUSE_STREAMS
+
+#ifndef WX_PRECOMP
     #include "wx/intl.h"
     #include "wx/dc.h"
+    #include "wx/log.h"
+    #include "wx/settings.h"
 #endif
 
 #include "wx/html/htmldefs.h"
 #include "wx/html/winpars.h"
 #include "wx/html/htmlwin.h"
 #include "wx/fontmap.h"
-#include "wx/log.h"
-#include "wx/settings.h"
 #include "wx/uri.h"
 
 
@@ -38,16 +37,17 @@ IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinParser, wxHtmlParser)
 
 wxList wxHtmlWinParser::m_Modules;
 
-wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindow *wnd) : wxHtmlParser()
+wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindowInterface *wndIface)
 {
     m_tmpStrBuf = NULL;
     m_tmpStrBufSize = 0;
-    m_Window = wnd;
+    m_windowInterface = wndIface;
     m_Container = NULL;
     m_DC = NULL;
     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;
@@ -111,25 +111,50 @@ void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module)
     m_Modules.DeleteObject(module);
 }
 
-void wxHtmlWinParser::SetFonts(const wxString& normal_face, const wxString& fixed_face,
+// build all HTML font sizes (1..7) from the given base size
+static void wxBuildFontSizes(int *sizes, int size)
+{
+    // using a fixed factor (1.2, from CSS2) is a bad idea as explained at
+    // http://www.w3.org/TR/CSS21/fonts.html#font-size-props but this is by far
+    // simplest thing to do so still do it like this for now
+    sizes[0] = int(size * 0.75); // exception to 1.2 rule, otherwise too small
+    sizes[1] = int(size * 0.83);
+    sizes[2] = size;
+    sizes[3] = int(size * 1.2);
+    sizes[4] = int(size * 1.44);
+    sizes[5] = int(size * 1.73);
+    sizes[6] = int(size * 2);
+}
+
+static int wxGetDefaultHTMLFontSize()
+{
+    // base the default font size on the size of the default system font but
+    // also ensure that we have a font of reasonable size, otherwise small HTML
+    // fonts are unreadable
+    int size = wxNORMAL_FONT->GetPointSize();
+    if ( size < 10 )
+        size = 10;
+    return size;
+}
+
+void wxHtmlWinParser::SetFonts(const wxString& normal_face,
+                               const wxString& fixed_face,
                                const int *sizes)
 {
-    static int default_sizes[7] =
-        {
-            wxHTML_FONT_SIZE_1,
-            wxHTML_FONT_SIZE_2,
-            wxHTML_FONT_SIZE_3,
-            wxHTML_FONT_SIZE_4,
-            wxHTML_FONT_SIZE_5,
-            wxHTML_FONT_SIZE_6,
-            wxHTML_FONT_SIZE_7
-        };
+    static int default_sizes[7] = { 0 };
+    if ( !sizes )
+    {
+        if ( !default_sizes[0] )
+            wxBuildFontSizes(default_sizes, wxGetDefaultHTMLFontSize());
 
-    if (sizes == NULL) sizes = default_sizes;
+        sizes = default_sizes;
+    }
 
     int i, j, k, l, m;
 
-    for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
+    for (i = 0; i < 7; i++)
+        m_FontsSizes[i] = sizes[i];
+
     m_FontFaceFixed = fixed_face;
     m_FontFaceNormal = normal_face;
 
@@ -154,22 +179,15 @@ void wxHtmlWinParser::SetStandardFonts(int size,
                                        const wxString& normal_face,
                                        const wxString& fixed_face)
 {
-    wxFont defaultFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
-
-    int f_sizes[7];
     if (size == -1)
-        size = defaultFont.GetPointSize();
+        size = wxGetDefaultHTMLFontSize();
 
-    f_sizes[0] = int(size * 0.6);
-    f_sizes[1] = int(size * 0.8);
-    f_sizes[2] = size;
-    f_sizes[3] = int(size * 1.2);
-    f_sizes[4] = int(size * 1.4);
-    f_sizes[5] = int(size * 1.6);
-    f_sizes[6] = int(size * 1.8);
+    int f_sizes[7];
+    wxBuildFontSizes(f_sizes, size);
 
-    wxString normal = normal_face.empty() ?
-                      defaultFont.GetFaceName() : normal_face;
+    wxString normal = normal_face;
+    if ( normal.empty() )
+        normal = wxNORMAL_FONT->GetFaceName();
 
     SetFonts(normal, fixed_face, f_sizes);
 }
@@ -182,10 +200,13 @@ 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
-    m_DC->GetTextExtent( wxT("H"), &m_CharWidth, &m_CharHeight);
-                /* NOTE : we're not using GetCharWidth/Height() because
-                   of differences under X and win
-                 */
+    
+    // we're not using GetCharWidth/Height() because of
+    // differences under X and win
+    wxCoord w,h;
+    m_DC->GetTextExtent( wxT("H"), &w, &h);
+    m_CharWidth = w;
+    m_CharHeight = h;
 
     m_UseLink = false;
     m_Link = wxHtmlLinkInfo( wxEmptyString );
@@ -197,7 +218,11 @@ void wxHtmlWinParser::InitParser(const wxString& source)
     m_tmpLastWasSpace = false;
     m_lastWordCell = NULL;
 
+    // open the toplevel container that contains everything else and that
+    // is never closed (this makes parser's life easier):
     OpenContainer();
+
+    // then open the first container into which page's content will go:
     OpenContainer();
 
 #if !wxUSE_UNICODE
@@ -212,11 +237,18 @@ void wxHtmlWinParser::InitParser(const wxString& source)
 
     m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor));
     wxColour windowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW) ;
-    m_Container->InsertCell(
-            new wxHtmlColourCell(GetWindow() ?
-                                     GetWindow()->GetBackgroundColour() :
-                                     windowColour,
-                                 wxHTML_CLR_BACKGROUND));
+
+    m_Container->InsertCell
+                 (
+                   new wxHtmlColourCell
+                       (
+                         m_windowInterface
+                            ? m_windowInterface->GetHTMLBackgroundColour()
+                            : windowColour,
+                         wxHTML_CLR_BACKGROUND
+                       )
+                  );
+
     m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont()));
 }
 
@@ -229,6 +261,15 @@ void wxHtmlWinParser::DoneParser()
     wxHtmlParser::DoneParser();
 }
 
+#if WXWIN_COMPATIBILITY_2_6
+wxHtmlWindow *wxHtmlWinParser::GetWindow()
+{
+    if (!m_windowInterface)
+        return NULL;
+    return wxDynamicCast(m_windowInterface->GetHTMLWindow(), wxHtmlWindow);
+}
+#endif
+
 wxObject* wxHtmlWinParser::GetProduct()
 {
     wxHtmlContainerCell *top;
@@ -246,69 +287,68 @@ wxObject* wxHtmlWinParser::GetProduct()
 wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type,
                                    const wxString& url) const
 {
-    if ( m_Window )
+    if ( !m_windowInterface )
+        return wxHtmlParser::OpenURL(type, url);
+
+    wxString myurl(url);
+    wxHtmlOpeningStatus status;
+    for (;;)
     {
-        wxString myurl(url);
-        wxHtmlOpeningStatus status;
-        for (;;)
-        {
-            wxString myfullurl(myurl);
+        wxString myfullurl(myurl);
 
-            // consider url as absolute path first
-            wxURI current(myurl);
-            myfullurl = current.BuildUnescapedURI();
+        // consider url as absolute path first
+        wxURI current(myurl);
+        myfullurl = current.BuildUnescapedURI();
 
-            // if not absolute then ...
-            if( current.IsReference() )
-            {
-                wxString basepath = GetFS()->GetPath();
-                wxURI base(basepath);
+        // if not absolute then ...
+        if( current.IsReference() )
+        {
+            wxString basepath = GetFS()->GetPath();
+            wxURI base(basepath);
 
-                // ... try to apply base path if valid ...
-                if( !base.IsReference() )
-                {
-                    wxURI path(myfullurl);
-                    path.Resolve( base );
-                    myfullurl = path.BuildUnescapedURI();
-                }
-                else
+            // ... try to apply base path if valid ...
+            if( !base.IsReference() )
+            {
+                wxURI path(myfullurl);
+                path.Resolve( base );
+                myfullurl = path.BuildUnescapedURI();
+            }
+            else
+            {
+                // ... or force such addition if not included already
+                if( !current.GetPath().Contains(base.GetPath()) )
                 {
-                    // ... or force such addition if not included already
-                    if( !current.GetPath().Contains(base.GetPath()) )
-                    {
-                        basepath += myurl;
-                        wxURI connected( basepath );
-                        myfullurl = connected.BuildUnescapedURI();
-                    }
+                    basepath += myurl;
+                    wxURI connected( basepath );
+                    myfullurl = connected.BuildUnescapedURI();
                 }
             }
-
-            wxString redirect;
-            status = m_Window->OnOpeningURL(type, myfullurl, &redirect);
-            if ( status != wxHTML_REDIRECT )
-                break;
-
-            myurl = redirect;
         }
 
-        if ( status == wxHTML_BLOCK )
-            return NULL;
+        wxString redirect;
+        status = m_windowInterface->OnHTMLOpeningURL(type, myfullurl, &redirect);
+        if ( status != wxHTML_REDIRECT )
+            break;
 
-        return GetFS()->OpenFile(myurl);
+        myurl = redirect;
     }
 
-    return wxHtmlParser::OpenURL(type, url);
+    if ( status == wxHTML_BLOCK )
+        return NULL;
+
+    int flags = wxFS_READ;
+    if (type == wxHTML_URL_IMAGE)
+        flags |= wxFS_SEEKABLE;
+
+    return GetFS()->OpenFile(myurl, flags);
 }
 
-void wxHtmlWinParser::AddText(const wxChar* txt)
+void wxHtmlWinParser::AddText(const wxString& txt)
 {
-    size_t i = 0,
-           x,
-           lng = wxStrlen(txt);
     register wxChar d;
     int templen = 0;
-    wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */);
 
+    size_t lng = txt.length();
     if (lng+1 > m_tmpStrBufSize)
     {
         delete[] m_tmpStrBuf;
@@ -317,42 +357,63 @@ void wxHtmlWinParser::AddText(const wxChar* txt)
     }
     wxChar *temp = m_tmpStrBuf;
 
+    wxString::const_iterator i = txt.begin();
+    wxString::const_iterator end = txt.end();
+
     if (m_tmpLastWasSpace)
     {
-        while ((i < lng) &&
-               ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) ||
-                (txt[i] == wxT('\t')))) i++;
+        while ( (i < end) &&
+                (*i == wxT('\n') || *i == wxT('\r') || *i == wxT(' ') ||
+                 *i == wxT('\t')) )
+        {
+            ++i;
+        }
     }
 
-    while (i < lng)
+    while (i < end)
     {
-        x = 0;
-        d = temp[templen++] = txt[i];
+        size_t x = 0;
+        d = temp[templen++] = *i;
         if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t')))
         {
-            i++, x++;
-            while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) ||
-                                 (txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++;
+            ++i, ++x;
+            while ( (i < end) &&
+                    (*i == wxT('\n') || *i == wxT('\r') ||
+                     *i == wxT(' ') || *i == wxT('\t')) )
+            {
+                ++i;
+                ++x;
+            }
         }
-        else i++;
+        else
+            ++i;
 
         if (x)
         {
             temp[templen-1] = wxT(' ');
-            DoAddText(temp, templen, nbsp);
+            DoAddText(temp, templen);
             m_tmpLastWasSpace = true;
         }
     }
 
     if (templen && (templen > 1 || temp[0] != wxT(' ')))
     {
-        DoAddText(temp, templen, nbsp);
+        DoAddText(temp, templen);
         m_tmpLastWasSpace = false;
     }
 }
 
-void wxHtmlWinParser::DoAddText(wxChar *temp, int& templen, wxChar nbsp)
+void wxHtmlWinParser::DoAddText(wxChar *temp, int& templen)
 {
+    #define NBSP_UNICODE_VALUE 160
+#if !wxUSE_UNICODE
+    if ( m_nbsp == 0 )
+        m_nbsp = GetEntitiesParser()->GetCharForCode(NBSP_UNICODE_VALUE);
+    #define CUR_NBSP_VALUE m_nbsp
+#else
+    #define CUR_NBSP_VALUE NBSP_UNICODE_VALUE
+#endif
+
     temp[templen] = 0;
     templen = 0;
 #if !wxUSE_UNICODE
@@ -362,7 +423,7 @@ void wxHtmlWinParser::DoAddText(wxChar *temp, int& templen, wxChar nbsp)
     size_t len = wxStrlen(temp);
     for (size_t j = 0; j < len; j++)
     {
-        if (temp[j] == nbsp)
+        if (temp[j] == CUR_NBSP_VALUE)
             temp[j] = wxT(' ');
     }
 
@@ -491,6 +552,9 @@ 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)
     {
@@ -524,7 +588,7 @@ void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
     else
     {
 #ifndef __WXMAC__
-        // okay, let convert to ISO_8859-1, available always
+        // okay, let's convert to ISO_8859-1, available always
         m_OutputEnc = wxFONTENCODING_DEFAULT;
 #else
         m_OutputEnc = wxLocale::GetSystemEncoding() ;
@@ -544,7 +608,7 @@ void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
                            (m_OutputEnc == wxFONTENCODING_DEFAULT) ?
                                       wxFONTENCODING_ISO8859_1 : m_OutputEnc,
                            wxCONVERT_SUBSTITUTE))
-    { // total failture :-(
+    { // total failure :-(
         wxLogError(_("Failed to display HTML document in %s encoding"),
                    wxFontMapper::GetEncodingName(enc).c_str());
         m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
@@ -588,4 +652,3 @@ void wxHtmlTagsModule::OnExit()
 }
 
 #endif
-