File indexing completed on 2024-05-05 05:44:50
0001 /*************************************************************************** 0002 * Copyright (C) 2007 by Rajko Albrecht * 0003 * ral@alwins-world.de * 0004 * * 0005 * This program is free software; you can redistribute it and/or modify * 0006 * it under the terms of the GNU General Public License as published by * 0007 * the Free Software Foundation; either version 2 of the License, or * 0008 * (at your option) any later version. * 0009 * * 0010 * This program is distributed in the hope that it will be useful, * 0011 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 0012 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * 0013 * GNU General Public License for more details. * 0014 * * 0015 * You should have received a copy of the GNU General Public License * 0016 * along with this program; if not, write to the * 0017 * Free Software Foundation, Inc., * 0018 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. * 0019 ***************************************************************************/ 0020 0021 #include "diffsyntax.h" 0022 0023 #include <QFontDatabase> 0024 #include <QRegularExpression> 0025 0026 void DiffSyntax::highlightBlock(const QString &aText) 0027 { 0028 static const QRegularExpression a(QLatin1String("^\\w+:\\s.*$")); // filename (Index: foo/bar.txt) 0029 QTextCharFormat format; 0030 format.setFont(QFontDatabase::systemFont(QFontDatabase::FixedFont)); 0031 bool bIsModifiedLine = false; 0032 0033 if (previousBlockState() == 1) { 0034 setCurrentBlockState(2); 0035 } else if (previousBlockState() == 2) { 0036 if (a.match(aText).capturedStart() != 0) { 0037 setCurrentBlockState(2); 0038 } 0039 } 0040 0041 if (a.match(aText).hasMatch()) { // filename (Index: foo/bar.txt) 0042 format.setForeground(QColor(0x66, 0x00, 0x33)); 0043 if (previousBlockState() == 1 || previousBlockState() == 2) { 0044 format.setFontWeight(QFont::Bold); 0045 } else { 0046 format.setFontItalic(true); 0047 } 0048 } else if (aText.startsWith(QLatin1String("_____"))) { 0049 setCurrentBlockState(1); 0050 format.setForeground(QColor(0x1D, 0x1D, 0x8F)); 0051 } else if (aText.startsWith(QLatin1Char('+'))) { // added line in new file 0052 format.setForeground(QColor(0x00, 0x8B, 0x00)); 0053 if (aText.startsWith(QLatin1String("+++"))) { // new file name 0054 format.setFontWeight(QFont::Bold); 0055 } else { 0056 bIsModifiedLine = true; 0057 } 0058 } else if (aText.startsWith(QLatin1Char('-'))) { // removed line in old file 0059 format.setForeground(QColor(0xCD, 0x33, 0x33)); 0060 if (aText.startsWith(QLatin1String("---"))) { // old file name 0061 format.setFontWeight(QFont::Bold); 0062 } else { 0063 bIsModifiedLine = true; 0064 } 0065 } else if (aText.startsWith(QLatin1String("@@"))) { // line numbers 0066 format.setForeground(QColor(0x1D, 0x1D, 0x8F)); 0067 } 0068 if (previousBlockState() == 2 && currentBlockState() == 2) { 0069 if (aText.startsWith(QLatin1String(" +"))) { 0070 format.setForeground(QColor(0x00, 0x8B, 0x00)); 0071 } else if (aText.startsWith(QLatin1String(" -"))) { 0072 format.setForeground(QColor(0xCD, 0x33, 0x33)); 0073 } 0074 } 0075 setFormat(0, aText.length(), format); 0076 // highlight trailing spaces 0077 if (bIsModifiedLine && aText.endsWith(QLatin1Char(' '))) { 0078 static const QRegularExpression hlTrailingSpaceRx(QLatin1String("[^\\s]")); // search the last non-space 0079 const int idx = aText.lastIndexOf(hlTrailingSpaceRx); 0080 format.setBackground(format.foreground()); 0081 setFormat(idx + 1, aText.length() - idx - 1, format); // only spaces in this range 0082 } 0083 } 0084 0085 #include "moc_diffsyntax.cpp"