svtools/source/edit/editsyntaxhighlighter.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20
  21 #include <svtools/svmedit.hxx>
  22 #include <vcl/xtextedt.hxx>
  23 #include <vcl/builderfactory.hxx>
  24 #include <svtools/editsyntaxhighlighter.hxx>
  25 #include <vcl/txtattr.hxx>
  26
  27
  28 MultiLineEditSyntaxHighlight::MultiLineEditSyntaxHighlight( vcl::Window* pParent, WinBits nWinStyle,
  29     HighlighterLanguage aLanguage): MultiLineEdit(pParent,nWinStyle), mbDoBracketHilight(true), aHighlighter(aLanguage)
  30 {
  31     EnableUpdateData(300);
  32 }
  33
  34 VCL_BUILDER_FACTORY(MultiLineEditSyntaxHighlight)
  35
  36 void MultiLineEditSyntaxHighlight::SetText(const OUString& rNewText)
  37 {
  38     MultiLineEdit::SetText(rNewText);
  39     UpdateData();
  40 }
  41
  42 void MultiLineEditSyntaxHighlight::DoBracketHilight(sal_uInt16 nKey)
  43 {
  44     TextSelection aCurrentPos = GetTextView()->GetSelection();
  45     sal_Int32 nStartPos = aCurrentPos.GetStart().GetIndex();
  46     sal_Int32 nStartPara = aCurrentPos.GetStart().GetPara();
  47     sal_uInt16 nCount = 0;
  48     int nChar = -1;
  49
  50     switch (nKey)
  51     {
  52         case '\'':  // no break
  53         case '"':
  54         {
  55             nChar = nKey;
  56             break;
  57         }
  58         case '}' :
  59         {
  60             nChar = '{';
  61             break;
  62         }
  63         case ')':
  64         {
  65             nChar = '(';
  66             break;
  67         }
  68         case ']':
  69         {
  70             nChar = '[';
  71             break;
  72         }
  73     }
  74
  75     if (nChar != -1)
  76     {
  77         for (sal_Int32 nPara = nStartPara; nPara >= 0; --nPara)
  78         {
  79             if (nStartPos == 0)
  80                 continue;
  81
  82             OUString aLine( GetTextEngine()->GetText( nPara ) );
  83
  84             if (aLine.isEmpty())
  85                 continue;
  86
  87             for (sal_Int32 i = (nPara==nStartPara) ? nStartPos-1 : aLine.getLength()-1; i>0; --i)
  88             {
  89                 if (aLine[i] == nChar)
  90                 {
  91                     if (!nCount)
  92                     {
  93                         GetTextEngine()->SetAttrib( TextAttribFontWeight( WEIGHT_ULTRABOLD ), nPara, i, i+1, true );
  94                         GetTextEngine()->SetAttrib( TextAttribFontColor( Color(0,0,0) ), nPara, i, i+1, true );
  95                         GetTextEngine()->SetAttrib( TextAttribFontWeight( WEIGHT_ULTRABOLD ), nStartPara, nStartPos, nStartPos, true );
  96                         GetTextEngine()->SetAttrib( TextAttribFontColor( Color(0,0,0) ), nStartPara, nStartPos, nStartPos, true );
  97                         return;
  98                     }
  99                     else
 100                         --nCount;
 101                 }
 102                 if (aLine[i] == nKey)
 103                     ++nCount;
 104             }
 105         }
 106     }
 107 }
 108
 109 bool MultiLineEditSyntaxHighlight::PreNotify( NotifyEvent& rNEvt )
 110 {
 111     if ( mbDoBracketHilight && (rNEvt.GetType() == MouseNotifyEvent::KEYINPUT) )
 112         DoBracketHilight(rNEvt.GetKeyEvent()->GetCharCode());
 113
 114     return MultiLineEdit::PreNotify(rNEvt);
 115 }
 116
 117 Color MultiLineEditSyntaxHighlight::GetColorValue(TokenTypes aToken)
 118 {
 119     Color aColor;
 120     switch (aHighlighter.GetLanguage())
 121     {
 122         case HIGHLIGHT_SQL:
 123         {
 124             switch (aToken)
 125             {
 126                 case TT_IDENTIFIER: aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLIDENTIFIER).nColor; break;
 127                 case TT_NUMBER:     aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLNUMBER).nColor; break;
 128                 case TT_STRING:     aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLSTRING).nColor; break;
 129                 case TT_OPERATOR:   aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLOPERATOR).nColor; break;
 130                 case TT_KEYWORDS:   aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLKEYWORD).nColor; break;
 131                 case TT_PARAMETER:  aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLPARAMETER).nColor; break;
 132                 case TT_COMMENT:    aColor = (ColorData)m_aColorConfig.GetColorValue(svtools::SQLCOMMENT).nColor; break;
 133                 default:            aColor = Color(0,0,0);
 134             }
 135             break;
 136         }
 137         case HIGHLIGHT_BASIC:
 138         {
 139             switch (aToken)
 140             {
 141                 case TT_IDENTIFIER: aColor = Color(255,0,0); break;
 142                 case TT_COMMENT:    aColor = Color(0,0,45); break;
 143                 case TT_NUMBER:     aColor = Color(204,102,204); break;
 144                 case TT_STRING:     aColor = Color(0,255,45); break;
 145                 case TT_OPERATOR:   aColor = Color(0,0,100); break;
 146                 case TT_KEYWORDS:   aColor = Color(0,0,255); break;
 147                 case TT_ERROR :     aColor = Color(0,255,255); break;
 148                 default:            aColor = Color(0,0,0);
 149             }
 150             break;
 151         }
 152         default: aColor = Color(0,0,0);
 153
 154     }
 155     return aColor;
 156 }
 157
 158 void MultiLineEditSyntaxHighlight::UpdateData()
 159 {
 160     // syntax highlighting
 161     // this must be possible improved by using notifychange correctly
 162     bool bTempModified = GetTextEngine()->IsModified();
 163     for (unsigned int nLine=0; nLine < GetTextEngine()->GetParagraphCount(); nLine++)
 164     {
 165         OUString aLine( GetTextEngine()->GetText( nLine ) );
 166         GetTextEngine()->RemoveAttribs( nLine, true );
 167         std::vector<HighlightPortion> aPortions;
 168         aHighlighter.getHighlightPortions( aLine, aPortions );
 169         for (std::vector<HighlightPortion>::iterator i(aPortions.begin());
 170              i != aPortions.end(); ++i)
 171         {
 172             GetTextEngine()->SetAttrib( TextAttribFontColor( GetColorValue(i->tokenType) ), nLine, i->nBegin, i->nEnd, true );
 173         }
 174     }
 175     GetTextView()->ShowCursor( false, true );
 176     GetTextEngine()->SetModified(bTempModified);
 177 }
 178
 179 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */