1 /* 2 * Copyright (C) 2011, 2012 Nicolas Bonnefon and other contributors 3 * 4 * This file is part of glogg. 5 * 6 * glogg is free software: you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License as published by 8 * the Free Software Foundation, either version 3 of the License, or 9 * (at your option) any later version. 10 * 11 * glogg is distributed in the hope that it will be useful, 12 * but WITHOUT ANY WARRANTY; without even the implied warranty of 13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 14 * GNU General Public License for more details. 15 * 16 * You should have received a copy of the GNU General Public License 17 * along with glogg. If not, see <http://www.gnu.org/licenses/>. 18 */ 19 20 // This file implements the Overview class. 21 // It provides support for drawing the match overview sidebar but 22 // the actual drawing is done in AbstractLogView which uses this class. 23 24 #include "log.h" 25 26 #include "data/logfiltereddata.h" 27 28 #include "overview.h" 29 30 Overview::Overview() : matchLines_(), markLines_() 31 { 32 logFilteredData_ = NULL; 33 linesInFile_ = 0; 34 topLine_ = 0; 35 nbLines_ = 0; 36 height_ = 0; 37 dirty_ = true; 38 visible_ = false; 39 } 40 41 Overview::~Overview() 42 { 43 } 44 45 void Overview::setFilteredData( const LogFilteredData* logFilteredData ) 46 { 47 logFilteredData_ = logFilteredData; 48 } 49 50 void Overview::updateData( int totalNbLine ) 51 { 52 LOG(logDEBUG) << "OverviewWidget::updateData " << totalNbLine; 53 54 linesInFile_ = totalNbLine; 55 dirty_ = true; 56 } 57 58 void Overview::updateView( int height ) 59 { 60 // We don't touch the cache if the height hasn't changed 61 if ( ( height != height_ ) || ( dirty_ == true ) ) { 62 height_ = height; 63 64 recalculatesLines(); 65 } 66 } 67 68 const QVector<Overview::WeightedLine>* Overview::getMatchLines() const 69 { 70 return &matchLines_; 71 } 72 73 const QVector<Overview::WeightedLine>* Overview::getMarkLines() const 74 { 75 return &markLines_; 76 } 77 78 std::pair<int,int> Overview::getViewLines() const 79 { 80 int top = 0; 81 int bottom = height_ - 1; 82 83 if ( linesInFile_ > 0 ) { 84 top = (int)((qint64)topLine_ * height_ / linesInFile_); 85 bottom = (int)((qint64)top + nbLines_ * height_ / linesInFile_); 86 } 87 88 return std::pair<int,int>(top, bottom); 89 } 90 91 int Overview::fileLineFromY( int position ) const 92 { 93 int line = (int)((qint64)position * linesInFile_ / height_); 94 95 return line; 96 } 97 98 int Overview::yFromFileLine( int file_line ) const 99 { 100 int position = 0; 101 102 if ( linesInFile_ > 0 ) 103 position = (int)((qint64)file_line * height_ / linesInFile_); 104 105 return position; 106 } 107 108 // Update the internal cache 109 void Overview::recalculatesLines() 110 { 111 LOG(logDEBUG) << "OverviewWidget::recalculatesLines"; 112 113 if ( logFilteredData_ != NULL ) { 114 matchLines_.clear(); 115 markLines_.clear(); 116 117 for ( int i = 0; i < logFilteredData_->getNbLine(); i++ ) { 118 LogFilteredData::FilteredLineType line_type = 119 logFilteredData_->filteredLineTypeByIndex( i ); 120 int line = (int) logFilteredData_->getMatchingLineNumber( i ); 121 int position = (int)( (qint64)line * height_ / linesInFile_ ); 122 if ( line_type == LogFilteredData::Match ) { 123 if ( ( ! matchLines_.isEmpty() ) && matchLines_.last().position() == position ) { 124 // If the line is already there, we increase its weight 125 matchLines_.last().load(); 126 } 127 else { 128 // If not we just add it 129 matchLines_.append( WeightedLine( position ) ); 130 } 131 } 132 else { 133 if ( ( ! markLines_.isEmpty() ) && markLines_.last().position() == position ) { 134 // If the line is already there, we increase its weight 135 markLines_.last().load(); 136 } 137 else { 138 // If not we just add it 139 markLines_.append( WeightedLine( position ) ); 140 } 141 } 142 } 143 } 144 else 145 LOG(logERROR) << "Overview::recalculatesLines: logFilteredData_ == NULL"; 146 147 dirty_ = false; 148 } 149