82 γραμμές
1.8 KiB
C++
82 γραμμές
1.8 KiB
C++
|
#include <QTextStream>
|
||
|
|
|
||
|
|
#include "previewgeneratorplaintext.h"
|
||
|
|
#include "previewresultplaintext.h"
|
||
|
|
|
||
|
|
PreviewResult *PreviewGeneratorPlainText::generate(RenderConfig config, QString documentPath, unsigned int page)
|
||
|
|
{
|
||
|
|
PreviewResultPlainText *result = new PreviewResultPlainText(documentPath, page);
|
||
|
|
QFile file(documentPath);
|
||
|
|
if(!file.open(QFile::ReadOnly | QFile::Text))
|
||
|
|
{
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
QTextStream in(&file);
|
||
|
|
|
||
|
|
QString resulText = "";
|
||
|
|
QString content = in.readAll();
|
||
|
|
QMap<int, QString> snippet;
|
||
|
|
|
||
|
|
int coveredRange = 0;
|
||
|
|
|
||
|
|
int lastWordPos = 0;
|
||
|
|
QHash<QString, int> countmap;
|
||
|
|
|
||
|
|
for(QString &word : config.wordsToHighlight)
|
||
|
|
{
|
||
|
|
|
||
|
|
int lastPos = 0;
|
||
|
|
int index = content.indexOf(word, lastPos, Qt::CaseInsensitive);
|
||
|
|
while(index != -1)
|
||
|
|
{
|
||
|
|
countmap[word] = countmap.value(word, 0) + 1;
|
||
|
|
|
||
|
|
if(index >= lastWordPos && index <= coveredRange)
|
||
|
|
{
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
int begin = index - 50;
|
||
|
|
if(begin < 0)
|
||
|
|
{
|
||
|
|
begin = 0;
|
||
|
|
}
|
||
|
|
int after = index + 50;
|
||
|
|
if(after > content.size())
|
||
|
|
{
|
||
|
|
after = content.size();
|
||
|
|
}
|
||
|
|
|
||
|
|
snippet[index] = "...<br>" + content.mid(begin, after) + "...<br>";
|
||
|
|
coveredRange = after;
|
||
|
|
lastPos = index;
|
||
|
|
|
||
|
|
index = content.indexOf(word, lastPos + 1, Qt::CaseInsensitive);
|
||
|
|
}
|
||
|
|
lastWordPos = lastPos;
|
||
|
|
}
|
||
|
|
|
||
|
|
auto i = snippet.constBegin();
|
||
|
|
while(i != snippet.constEnd())
|
||
|
|
{
|
||
|
|
resulText.append(i.value());
|
||
|
|
++i;
|
||
|
|
}
|
||
|
|
|
||
|
|
for(QString &word : config.wordsToHighlight)
|
||
|
|
{
|
||
|
|
resulText.replace(word, "<span style=\"background-color: yellow;\">" + word + "</span>", Qt::CaseInsensitive);
|
||
|
|
}
|
||
|
|
|
||
|
|
QFileInfo info{documentPath};
|
||
|
|
|
||
|
|
QString header = "<b>" + info.fileName() + "</b> ";
|
||
|
|
for(QString &word : config.wordsToHighlight)
|
||
|
|
{
|
||
|
|
header += word + ": " + QString::number(countmap[word]) + " ";
|
||
|
|
}
|
||
|
|
header += "<hr>";
|
||
|
|
|
||
|
|
result->setText(header + resulText.replace("\n", "<br>"));
|
||
|
|
return result;
|
||
|
|
}
|