f6bcfd974e
git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@7748 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
406 lines
11 KiB
C++
406 lines
11 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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#ifdef __GNUG__
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#pragma implementation
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#endif
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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 __BORDLANDC__
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#pragma hdrstop
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#endif
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#ifndef WXPRECOMP
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#include "wx/wx.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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//-----------------------------------------------------------------------------
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// wxHtmlWinParser
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//-----------------------------------------------------------------------------
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wxList wxHtmlWinParser::m_Modules;
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wxHtmlWinParser::wxHtmlWinParser(wxWindow *wnd) : wxHtmlParser()
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{
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m_Window = wnd;
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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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m_EncConv = NULL;
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m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
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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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m_FontsTable[i][j][k][l][m] = NULL;
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m_FontsFacesTable[i][j][k][l][m] = wxEmptyString;
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m_FontsEncTable[i][j][k][l][m] = wxFONTENCODING_DEFAULT;
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}
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#ifdef __WXMSW__
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static int default_sizes[7] = {7, 8, 10, 12, 16, 22, 30};
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#elif defined(__WXMAC__)
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static int default_sizes[7] = {9, 12, 14, 18, 24, 30, 36};
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#else
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static int default_sizes[7] = {10, 12, 14, 16, 19, 24, 32};
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#endif
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SetFonts("", "", default_sizes);
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}
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// fill in wxHtmlParser's tables:
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wxNode *node = m_Modules.GetFirst();
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while (node) {
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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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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 (m_EncConv) delete m_EncConv;
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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(wxString normal_face, wxString fixed_face, const int *sizes)
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{
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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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SetInputEncoding(m_InputEnc);
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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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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::InitParser(const wxString& source)
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{
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wxHtmlParser::InitParser(source);
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wxASSERT_MSG(m_DC != NULL, _T("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("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("", "");
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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_tmpLastWasSpace = FALSE;
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OpenContainer();
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OpenContainer();
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m_Container -> InsertCell(new wxHtmlColourCell(m_ActualColor));
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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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SetInputEncoding(wxFONTENCODING_DEFAULT); // for next call
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wxHtmlParser::DoneParser();
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}
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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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return top;
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}
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void wxHtmlWinParser::AddText(const char* txt)
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{
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wxHtmlCell *c;
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int i = 0, x, lng = strlen(txt);
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char temp[wxHTML_BUFLEN];
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register char d;
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int templen = 0;
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if (m_tmpLastWasSpace) {
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while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || (txt[i] == '\t'))) i++;
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}
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while (i < lng) {
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x = 0;
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d = temp[templen++] = txt[i];
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if ((d == '\n') || (d == '\r') || (d == ' ') || (d == '\t')) {
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i++, x++;
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while ((i < lng) && ((txt[i] == '\n') || (txt[i] == '\r') || (txt[i] == ' ') || (txt[i] == '\t'))) i++, x++;
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}
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else i++;
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if (x) {
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temp[templen-1] = ' ';
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temp[templen] = 0;
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templen = 0;
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if (m_EncConv) m_EncConv -> Convert(temp);
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c = new wxHtmlWordCell(temp, *(GetDC()));
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if (m_UseLink) c -> SetLink(m_Link);
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m_Container -> InsertCell(c);
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m_tmpLastWasSpace = TRUE;
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}
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}
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if (templen) {
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temp[templen] = 0;
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if (m_EncConv) m_EncConv -> Convert(temp);
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c = new wxHtmlWordCell(temp, *(GetDC()));
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if (m_UseLink) c -> SetLink(m_Link);
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m_Container -> InsertCell(c);
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m_tmpLastWasSpace = FALSE;
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}
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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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wxFontEncoding *encptr = &(m_FontsEncTable[fb][fi][fu][ff][fs]);
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if (*fontptr != NULL && (*faceptr != face || *encptr != m_OutputEnc)) {
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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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*faceptr = face;
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*encptr = m_OutputEnc;
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*fontptr = new wxFont(
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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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m_OutputEnc);
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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 (m_InputEnc != wxFONTENCODING_DEFAULT)
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SetInputEncoding(m_InputEnc);
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}
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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) {delete m_EncConv; m_EncConv = NULL;}
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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 = wxTheFontMapper -> IsEncodingAvailable(enc, m_FontFaceNormal);
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availfix = wxTheFontMapper -> 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 (wxTheFontMapper -> GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE) &&
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wxTheFontMapper -> 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 (wxTheFontMapper -> GetAltForEncoding(enc, &altnorm, m_FontFaceNormal, FALSE))
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m_OutputEnc = altnorm;
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// okay, let convert to ISO_8859-1, available always
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else
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m_OutputEnc = wxFONTENCODING_DEFAULT;
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m_InputEnc = enc;
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if (m_InputEnc == m_OutputEnc) return;
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m_EncConv = new wxEncodingConverter();
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if (!m_EncConv -> Init(m_InputEnc,
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(m_OutputEnc == wxFONTENCODING_DEFAULT) ?
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wxFONTENCODING_ISO8859_1 : m_OutputEnc,
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wxCONVERT_SUBSTITUTE))
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{ // total failture :-(
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wxLogError(_("Failed to display HTML document in %s encoding"),
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wxFontMapper::GetEncodingName(enc).c_str());
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m_InputEnc = m_OutputEnc = wxFONTENCODING_DEFAULT;
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delete m_EncConv;
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m_EncConv = NULL;
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}
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}
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//-----------------------------------------------------------------------------
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// wxHtmlWinTagHandler
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//-----------------------------------------------------------------------------
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IMPLEMENT_ABSTRACT_CLASS(wxHtmlWinTagHandler, wxHtmlTagHandler)
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//-----------------------------------------------------------------------------
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// wxHtmlTagsModule
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//-----------------------------------------------------------------------------
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IMPLEMENT_DYNAMIC_CLASS(wxHtmlTagsModule, wxModule)
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bool wxHtmlTagsModule::OnInit()
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{
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wxHtmlWinParser::AddModule(this);
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return TRUE;
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}
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void wxHtmlTagsModule::OnExit()
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{
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wxHtmlWinParser::RemoveModule(this);
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}
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#endif
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