bc55e31bdc
2. used the above to implement clickable links support in wxHtmlListBox git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@38701 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
606 lines
16 KiB
C++
606 lines
16 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Name: winpars.cpp
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// Purpose: wxHtmlParser class (generic parser)
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// Author: Vaclav Slavik
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// RCS-ID: $Id$
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// Copyright: (c) 1999 Vaclav Slavik
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#include "wx/wxprec.h"
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#include "wx/defs.h"
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#if wxUSE_HTML && wxUSE_STREAMS
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#ifndef WXPRECOMP
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#include "wx/intl.h"
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#include "wx/dc.h"
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#endif
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#include "wx/html/htmldefs.h"
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#include "wx/html/winpars.h"
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#include "wx/html/htmlwin.h"
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#include "wx/fontmap.h"
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#include "wx/log.h"
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#include "wx/settings.h"
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#include "wx/uri.h"
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//-----------------------------------------------------------------------------
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// wxHtmlWinParser
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//-----------------------------------------------------------------------------
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IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinParser, wxHtmlParser)
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wxList wxHtmlWinParser::m_Modules;
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wxHtmlWinParser::wxHtmlWinParser(wxHtmlWindowInterface *wndIface)
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{
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m_tmpStrBuf = NULL;
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m_tmpStrBufSize = 0;
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m_windowInterface = wndIface;
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m_Container = NULL;
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m_DC = NULL;
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m_CharHeight = m_CharWidth = 0;
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m_UseLink = false;
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#if !wxUSE_UNICODE
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m_EncConv = NULL;
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m_InputEnc = wxFONTENCODING_ISO8859_1;
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m_OutputEnc = wxFONTENCODING_DEFAULT;
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#endif
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m_lastWordCell = NULL;
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{
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int i, j, k, l, m;
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for (i = 0; i < 2; i++)
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for (j = 0; j < 2; j++)
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for (k = 0; k < 2; k++)
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for (l = 0; l < 2; l++)
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for (m = 0; m < 7; m++)
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{
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m_FontsTable[i][j][k][l][m] = NULL;
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m_FontsFacesTable[i][j][k][l][m] = wxEmptyString;
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#if !wxUSE_UNICODE
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m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT;
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#endif
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}
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SetFonts(wxEmptyString, wxEmptyString, NULL);
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}
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// fill in wxHtmlParser's tables:
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wxList::compatibility_iterator node = m_Modules.GetFirst();
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while (node)
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{
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wxHtmlTagsModule *mod = (wxHtmlTagsModule*) node->GetData();
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mod->FillHandlersTable(this);
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node = node->GetNext();
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}
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}
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wxHtmlWinParser::~wxHtmlWinParser()
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{
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int i, j, k, l, m;
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for (i = 0; i < 2; i++)
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for (j = 0; j < 2; j++)
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for (k = 0; k < 2; k++)
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for (l = 0; l < 2; l++)
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for (m = 0; m < 7; m++)
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{
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if (m_FontsTable[i][j][k][l][m] != NULL)
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delete m_FontsTable[i][j][k][l][m];
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}
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#if !wxUSE_UNICODE
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delete m_EncConv;
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#endif
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delete[] m_tmpStrBuf;
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}
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void wxHtmlWinParser::AddModule(wxHtmlTagsModule *module)
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{
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m_Modules.Append(module);
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}
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void wxHtmlWinParser::RemoveModule(wxHtmlTagsModule *module)
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{
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m_Modules.DeleteObject(module);
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}
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void wxHtmlWinParser::SetFonts(const wxString& normal_face, const wxString& fixed_face,
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const int *sizes)
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{
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static int default_sizes[7] =
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{
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wxHTML_FONT_SIZE_1,
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wxHTML_FONT_SIZE_2,
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wxHTML_FONT_SIZE_3,
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wxHTML_FONT_SIZE_4,
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wxHTML_FONT_SIZE_5,
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wxHTML_FONT_SIZE_6,
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wxHTML_FONT_SIZE_7
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};
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if (sizes == NULL) sizes = default_sizes;
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int i, j, k, l, m;
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for (i = 0; i < 7; i++) m_FontsSizes[i] = sizes[i];
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m_FontFaceFixed = fixed_face;
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m_FontFaceNormal = normal_face;
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#if !wxUSE_UNICODE
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SetInputEncoding(m_InputEnc);
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#endif
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for (i = 0; i < 2; i++)
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for (j = 0; j < 2; j++)
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for (k = 0; k < 2; k++)
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for (l = 0; l < 2; l++)
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for (m = 0; m < 7; m++) {
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if (m_FontsTable[i][j][k][l][m] != NULL)
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{
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delete m_FontsTable[i][j][k][l][m];
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m_FontsTable[i][j][k][l][m] = NULL;
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}
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}
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}
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void wxHtmlWinParser::SetStandardFonts(int size,
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const wxString& normal_face,
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const wxString& fixed_face)
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{
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wxFont defaultFont = wxSystemSettings::GetFont(wxSYS_DEFAULT_GUI_FONT);
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int f_sizes[7];
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if (size == -1)
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size = defaultFont.GetPointSize();
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f_sizes[0] = int(size * 0.6);
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f_sizes[1] = int(size * 0.8);
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f_sizes[2] = size;
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f_sizes[3] = int(size * 1.2);
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f_sizes[4] = int(size * 1.4);
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f_sizes[5] = int(size * 1.6);
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f_sizes[6] = int(size * 1.8);
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wxString normal = normal_face.empty() ?
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defaultFont.GetFaceName() : normal_face;
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SetFonts(normal, fixed_face, f_sizes);
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}
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void wxHtmlWinParser::InitParser(const wxString& source)
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{
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wxHtmlParser::InitParser(source);
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wxASSERT_MSG(m_DC != NULL, wxT("no DC assigned to wxHtmlWinParser!!"));
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m_FontBold = m_FontItalic = m_FontUnderlined = m_FontFixed = FALSE;
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m_FontSize = 3; //default one
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CreateCurrentFont(); // we're selecting default font into
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m_DC->GetTextExtent( wxT("H"), &m_CharWidth, &m_CharHeight);
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/* NOTE : we're not using GetCharWidth/Height() because
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of differences under X and win
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*/
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m_UseLink = false;
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m_Link = wxHtmlLinkInfo( wxEmptyString );
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m_LinkColor.Set(0, 0, 0xFF);
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m_ActualColor.Set(0, 0, 0);
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m_Align = wxHTML_ALIGN_LEFT;
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m_ScriptMode = wxHTML_SCRIPT_NORMAL;
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m_ScriptBaseline = 0;
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m_tmpLastWasSpace = false;
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m_lastWordCell = NULL;
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OpenContainer();
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OpenContainer();
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#if !wxUSE_UNICODE
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wxString charset = ExtractCharsetInformation(source);
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if (!charset.empty())
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{
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wxFontEncoding enc = wxFontMapper::Get()->CharsetToEncoding(charset);
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if (enc != wxFONTENCODING_SYSTEM)
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SetInputEncoding(enc);
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}
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#endif
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m_Container->InsertCell(new wxHtmlColourCell(m_ActualColor));
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wxColour windowColour = wxSystemSettings::GetColour(wxSYS_COLOUR_WINDOW) ;
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m_Container->InsertCell
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(
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new wxHtmlColourCell
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(
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m_windowInterface
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? m_windowInterface->GetHTMLBackgroundColour()
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: windowColour,
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wxHTML_CLR_BACKGROUND
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)
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);
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m_Container->InsertCell(new wxHtmlFontCell(CreateCurrentFont()));
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}
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void wxHtmlWinParser::DoneParser()
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{
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m_Container = NULL;
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#if !wxUSE_UNICODE
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SetInputEncoding(wxFONTENCODING_ISO8859_1); // for next call
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#endif
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wxHtmlParser::DoneParser();
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}
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#if WXWIN_COMPATIBILITY_2_6
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wxHtmlWindow *wxHtmlWinParser::GetWindow()
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{
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if (!m_windowInterface)
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return NULL;
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return wxDynamicCast(m_windowInterface->GetHTMLWindow(), wxHtmlWindow);
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}
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#endif
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wxObject* wxHtmlWinParser::GetProduct()
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{
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wxHtmlContainerCell *top;
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CloseContainer();
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OpenContainer();
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top = m_Container;
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while (top->GetParent()) top = top->GetParent();
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top->RemoveExtraSpacing(true, true);
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return top;
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}
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wxFSFile *wxHtmlWinParser::OpenURL(wxHtmlURLType type,
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const wxString& url) const
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{
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if ( !m_windowInterface )
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return wxHtmlParser::OpenURL(type, url);
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wxString myurl(url);
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wxHtmlOpeningStatus status;
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for (;;)
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{
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wxString myfullurl(myurl);
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// consider url as absolute path first
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wxURI current(myurl);
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myfullurl = current.BuildUnescapedURI();
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// if not absolute then ...
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if( current.IsReference() )
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{
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wxString basepath = GetFS()->GetPath();
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wxURI base(basepath);
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// ... try to apply base path if valid ...
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if( !base.IsReference() )
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{
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wxURI path(myfullurl);
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path.Resolve( base );
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myfullurl = path.BuildUnescapedURI();
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}
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else
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{
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// ... or force such addition if not included already
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if( !current.GetPath().Contains(base.GetPath()) )
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{
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basepath += myurl;
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wxURI connected( basepath );
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myfullurl = connected.BuildUnescapedURI();
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}
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}
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}
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wxString redirect;
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status = m_windowInterface->OnHTMLOpeningURL(type, myfullurl, &redirect);
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if ( status != wxHTML_REDIRECT )
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break;
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myurl = redirect;
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}
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if ( status == wxHTML_BLOCK )
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return NULL;
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return GetFS()->OpenFile(myurl);
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}
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void wxHtmlWinParser::AddText(const wxChar* txt)
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{
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size_t i = 0,
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x,
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lng = wxStrlen(txt);
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register wxChar d;
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int templen = 0;
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wxChar nbsp = GetEntitiesParser()->GetCharForCode(160 /* nbsp */);
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if (lng+1 > m_tmpStrBufSize)
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{
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delete[] m_tmpStrBuf;
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m_tmpStrBuf = new wxChar[lng+1];
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m_tmpStrBufSize = lng+1;
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}
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wxChar *temp = m_tmpStrBuf;
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if (m_tmpLastWasSpace)
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{
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while ((i < lng) &&
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((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) || (txt[i] == wxT(' ')) ||
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(txt[i] == wxT('\t')))) i++;
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}
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while (i < lng)
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{
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x = 0;
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d = temp[templen++] = txt[i];
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if ((d == wxT('\n')) || (d == wxT('\r')) || (d == wxT(' ')) || (d == wxT('\t')))
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{
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i++, x++;
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while ((i < lng) && ((txt[i] == wxT('\n')) || (txt[i] == wxT('\r')) ||
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(txt[i] == wxT(' ')) || (txt[i] == wxT('\t')))) i++, x++;
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}
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else i++;
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if (x)
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{
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temp[templen-1] = wxT(' ');
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DoAddText(temp, templen, nbsp);
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m_tmpLastWasSpace = true;
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}
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}
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if (templen && (templen > 1 || temp[0] != wxT(' ')))
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{
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DoAddText(temp, templen, nbsp);
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m_tmpLastWasSpace = false;
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}
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}
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void wxHtmlWinParser::DoAddText(wxChar *temp, int& templen, wxChar nbsp)
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{
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temp[templen] = 0;
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templen = 0;
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#if !wxUSE_UNICODE
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if (m_EncConv)
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m_EncConv->Convert(temp);
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#endif
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size_t len = wxStrlen(temp);
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for (size_t j = 0; j < len; j++)
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{
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if (temp[j] == nbsp)
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temp[j] = wxT(' ');
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}
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wxHtmlCell *c = new wxHtmlWordCell(temp, *(GetDC()));
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ApplyStateToCell(c);
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m_Container->InsertCell(c);
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((wxHtmlWordCell*)c)->SetPreviousWord(m_lastWordCell);
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m_lastWordCell = (wxHtmlWordCell*)c;
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}
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wxHtmlContainerCell* wxHtmlWinParser::OpenContainer()
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{
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m_Container = new wxHtmlContainerCell(m_Container);
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m_Container->SetAlignHor(m_Align);
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m_tmpLastWasSpace = true;
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/* to avoid space being first character in paragraph */
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return m_Container;
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}
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wxHtmlContainerCell* wxHtmlWinParser::SetContainer(wxHtmlContainerCell *c)
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{
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m_tmpLastWasSpace = true;
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/* to avoid space being first character in paragraph */
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return m_Container = c;
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}
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wxHtmlContainerCell* wxHtmlWinParser::CloseContainer()
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{
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m_Container = m_Container->GetParent();
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return m_Container;
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}
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void wxHtmlWinParser::SetFontSize(int s)
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{
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if (s < 1) s = 1;
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else if (s > 7) s = 7;
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m_FontSize = s;
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}
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wxFont* wxHtmlWinParser::CreateCurrentFont()
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{
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int fb = GetFontBold(),
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fi = GetFontItalic(),
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fu = GetFontUnderlined(),
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ff = GetFontFixed(),
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fs = GetFontSize() - 1 /*remap from <1;7> to <0;6>*/ ;
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wxString face = ff ? m_FontFaceFixed : m_FontFaceNormal;
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wxString *faceptr = &(m_FontsFacesTable[fb][fi][fu][ff][fs]);
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wxFont **fontptr = &(m_FontsTable[fb][fi][fu][ff][fs]);
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#if !wxUSE_UNICODE
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wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]);
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#endif
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if (*fontptr != NULL && (*faceptr != face
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#if !wxUSE_UNICODE
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|| *encptr != m_OutputEnc
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#endif
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))
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{
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delete *fontptr;
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*fontptr = NULL;
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}
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if (*fontptr == NULL)
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{
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*faceptr = face;
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*fontptr = new wxFont(
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(int) (m_FontsSizes[fs] * m_PixelScale),
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ff ? wxMODERN : wxSWISS,
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fi ? wxITALIC : wxNORMAL,
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fb ? wxBOLD : wxNORMAL,
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fu ? true : false, face
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#if wxUSE_UNICODE
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);
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#else
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, m_OutputEnc);
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*encptr = m_OutputEnc;
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#endif
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}
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m_DC->SetFont(**fontptr);
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return (*fontptr);
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}
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void wxHtmlWinParser::SetLink(const wxHtmlLinkInfo& link)
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{
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m_Link = link;
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m_UseLink = (link.GetHref() != wxEmptyString);
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}
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void wxHtmlWinParser::SetFontFace(const wxString& face)
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{
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if (GetFontFixed()) m_FontFaceFixed = face;
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else m_FontFaceNormal = face;
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#if !wxUSE_UNICODE
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if (m_InputEnc != wxFONTENCODING_DEFAULT)
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SetInputEncoding(m_InputEnc);
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#endif
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}
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void wxHtmlWinParser::ApplyStateToCell(wxHtmlCell *cell)
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{
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// set the link:
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if (m_UseLink)
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cell->SetLink(GetLink());
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// apply current script mode settings:
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cell->SetScriptMode(GetScriptMode(), GetScriptBaseline());
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}
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#if !wxUSE_UNICODE
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void wxHtmlWinParser::SetInputEncoding(wxFontEncoding enc)
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{
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m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
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if (m_EncConv)
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{
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delete m_EncConv;
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m_EncConv = NULL;
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}
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if (enc == wxFONTENCODING_DEFAULT) return;
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wxFontEncoding altfix, altnorm;
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bool availfix, availnorm;
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// exact match?
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availnorm = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceNormal);
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availfix = wxFontMapper::Get()->IsEncodingAvailable(enc, m_FontFaceFixed);
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if (availnorm && availfix)
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m_OutputEnc = enc;
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// alternatives?
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else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false) &&
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wxFontMapper::Get()->GetAltForEncoding(enc, &altfix, m_FontFaceFixed, false) &&
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altnorm == altfix)
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m_OutputEnc = altnorm;
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// at least normal face?
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else if (availnorm)
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m_OutputEnc = enc;
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else if (wxFontMapper::Get()->GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, false))
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m_OutputEnc = altnorm;
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else
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{
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#ifndef __WXMAC__
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// okay, let convert to ISO_8859-1, available always
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m_OutputEnc = wxFONTENCODING_DEFAULT;
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#else
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m_OutputEnc = wxLocale::GetSystemEncoding() ;
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|
#endif
|
|
}
|
|
|
|
m_InputEnc = enc;
|
|
if (m_OutputEnc == wxFONTENCODING_DEFAULT)
|
|
GetEntitiesParser()->SetEncoding(wxFONTENCODING_SYSTEM);
|
|
else
|
|
GetEntitiesParser()->SetEncoding(m_OutputEnc);
|
|
|
|
if (m_InputEnc == m_OutputEnc) return;
|
|
|
|
m_EncConv = new wxEncodingConverter();
|
|
if (!m_EncConv->Init(m_InputEnc,
|
|
(m_OutputEnc == wxFONTENCODING_DEFAULT) ?
|
|
wxFONTENCODING_ISO8859_1 : m_OutputEnc,
|
|
wxCONVERT_SUBSTITUTE))
|
|
{ // total failture :-(
|
|
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;
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxHtmlWinTagHandler
|
|
//-----------------------------------------------------------------------------
|
|
|
|
IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
|
|
|
|
//-----------------------------------------------------------------------------
|
|
// wxHtmlTagsModule
|
|
//-----------------------------------------------------------------------------
|
|
|
|
// NB: This is *NOT* winpars.cpp's initialization and shutdown code!!
|
|
// This module is an ancestor for tag handlers modules defined
|
|
// in m_*.cpp files with TAGS_MODULE_BEGIN...TAGS_MODULE_END construct.
|
|
//
|
|
// Do not add any winpars.cpp shutdown or initialization code to it,
|
|
// create a new module instead!
|
|
|
|
IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
|
|
|
|
bool wxHtmlTagsModule::OnInit()
|
|
{
|
|
wxHtmlWinParser::AddModule(this);
|
|
return true;
|
|
}
|
|
|
|
void wxHtmlTagsModule::OnExit()
|
|
{
|
|
wxHtmlWinParser::RemoveModule(this);
|
|
}
|
|
|
|
#endif
|
|
|