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Advanced search (second part)

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This commit is contained in:
Jakub Melka
2020-01-04 17:58:55 +01:00
parent 54ea7dcb7d
commit bf4ede1574
6 changed files with 274 additions and 29 deletions
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80
PdfForQtViewer/pdfadvancedfindwidget.cpp
View File

@@ -35,6 +35,8 @@ PDFAdvancedFindWidget::PDFAdvancedFindWidget(pdf::PDFDrawWidgetProxy* proxy, QWi
{
ui->setupUi(this);
ui->resultsTableWidget->setHorizontalHeaderLabels({ tr("Page No."), tr("Phrase"), tr("Context") });
connect(ui->regularExpressionsCheckbox, &QCheckBox::clicked, this, &PDFAdvancedFindWidget::updateUI);
connect(m_proxy, &pdf::PDFDrawWidgetProxy::textLayoutChanged, this, &PDFAdvancedFindWidget::performSearch);
updateUI();
@@ -62,6 +64,7 @@ void PDFAdvancedFindWidget::on_searchButton_clicked()
m_parameters.isRegularExpression = ui->regularExpressionsCheckbox->isChecked();
m_parameters.isDotMatchingEverything = ui->dotMatchesEverythingCheckBox->isChecked();
m_parameters.isMultiline = ui->multilineMatchingCheckBox->isChecked();
m_parameters.isSoftHyphenRemoved = ui->removeSoftHyphenCheckBox->isChecked();
m_parameters.isSearchFinished = m_parameters.phrase.isEmpty();
if (m_parameters.isSearchFinished)
@@ -85,6 +88,9 @@ void PDFAdvancedFindWidget::on_searchButton_clicked()
}
}
m_findResults.clear();
updateResultsUI();
pdf::PDFAsynchronousTextLayoutCompiler* compiler = m_proxy->getTextLayoutCompiler();
if (compiler->isTextLayoutReady())
{
@@ -104,6 +110,25 @@ void PDFAdvancedFindWidget::updateUI()
ui->regularExpressionSettingsGroupBox->setEnabled(enableRegularExpressionUI);
}
void PDFAdvancedFindWidget::updateResultsUI()
{
ui->tabWidget->setTabText(ui->tabWidget->indexOf(ui->resultsTab), !m_findResults.empty() ? tr("Results (%1)").arg(m_findResults.size()) : tr("Results"));
ui->resultsTableWidget->setRowCount(static_cast<int>(m_findResults.size()));
for (int i = 0, rowCount = int(m_findResults.size()); i < rowCount; ++i)
{
const pdf::PDFFindResult& findResult = m_findResults[i];
ui->resultsTableWidget->setItem(i, 0, new QTableWidgetItem(QString::number(findResult.textSelectionItems.front().first.pageIndex + 1)));
ui->resultsTableWidget->setItem(i, 1, new QTableWidgetItem(findResult.matched));
ui->resultsTableWidget->setItem(i, 2, new QTableWidgetItem(findResult.context));
}
if (!m_findResults.empty())
{
ui->tabWidget->setCurrentWidget(ui->resultsTab);
}
}
void PDFAdvancedFindWidget::performSearch()
{
if (m_parameters.isSearchFinished)
@@ -120,7 +145,62 @@ void PDFAdvancedFindWidget::performSearch()
return;
}
// Prepare string to search
bool useRegularExpression = m_parameters.isRegularExpression;
QString expression = m_parameters.phrase;
if (m_parameters.isWholeWordsOnly)
{
if (useRegularExpression)
{
expression = QString("\\b%1\\b").arg(expression);
}
else
{
expression = QString("\\b%1\\b").arg(QRegularExpression::escape(expression));
}
useRegularExpression = true;
}
pdf::PDFTextFlow::FlowFlags flowFlags = pdf::PDFTextFlow::SeparateBlocks;
if (m_parameters.isSoftHyphenRemoved)
{
flowFlags |= pdf::PDFTextFlow::RemoveSoftHyphen;
}
if (m_parameters.isRegularExpression)
{
flowFlags |= pdf::PDFTextFlow::AddLineBreaks;
}
const pdf::PDFTextLayoutStorage* textLayoutStorage = compiler->getTextLayoutStorage();
if (!useRegularExpression)
{
// Use simple text search
Qt::CaseSensitivity caseSensitivity = m_parameters.isCaseSensitive ? Qt::CaseSensitive : Qt::CaseInsensitive;
m_findResults = textLayoutStorage->find(expression, caseSensitivity, flowFlags);
}
else
{
// Use regular expression search
QRegularExpression::PatternOptions patternOptions = QRegularExpression::UseUnicodePropertiesOption | QRegularExpression::OptimizeOnFirstUsageOption;
if (!m_parameters.isCaseSensitive)
{
patternOptions |= QRegularExpression::CaseInsensitiveOption;
}
if (m_parameters.isDotMatchingEverything)
{
patternOptions |= QRegularExpression::DotMatchesEverythingOption;
}
if (m_parameters.isMultiline)
{
patternOptions |= QRegularExpression::MultilineOption;
}
QRegularExpression regularExpression(expression, patternOptions);
m_findResults = textLayoutStorage->find(regularExpression, flowFlags);
}
updateResultsUI();
}
} // namespace pdfviewer

4
PdfForQtViewer/pdfadvancedfindwidget.h
View File

@@ -19,6 +19,7 @@
#define PDFADVANCEDFINDWIDGET_H
#include "pdfglobal.h"
#include "pdftextlayout.h"
#include <QWidget>
@@ -51,6 +52,7 @@ private slots:
private:
void updateUI();
void updateResultsUI();
void performSearch();
struct SearchParameters
@@ -62,6 +64,7 @@ private:
bool isDotMatchingEverything = false;
bool isMultiline = false;
bool isSearchFinished = false;
bool isSoftHyphenRemoved = false;
};
Ui::PDFAdvancedFindWidget* ui;
@@ -69,6 +72,7 @@ private:
pdf::PDFDrawWidgetProxy* m_proxy;
const pdf::PDFDocument* m_document;
SearchParameters m_parameters;
pdf::PDFFindResults m_findResults;
};
} // namespace pdfviewer

75
PdfForQtViewer/pdfadvancedfindwidget.ui
View File

@@ -30,27 +30,13 @@
<string>Search Settings</string>
</property>
<layout class="QGridLayout" name="searchSettingsGroupBoxLayout" columnstretch="0,1,0">
<item row="0" column="0">
<widget class="QLabel" name="searchLabel">
<property name="text">
<string>Search for:</string>
</property>
</widget>
</item>
<item row="0" column="1" colspan="2">
<widget class="QLineEdit" name="searchPhraseEdit"/>
</item>
<item row="4" column="2">
<widget class="QPushButton" name="searchButton">
<item row="3" column="1" colspan="2">
<widget class="QCheckBox" name="regularExpressionsCheckbox">
<property name="text">
<string>Search</string>
</property>
</widget>
</item>
<item row="1" column="1" colspan="2">
<widget class="QCheckBox" name="caseSensitiveCheckBox">
<property name="text">
<string>Case sensitive</string>
<string>Use regular expressions</string>
</property>
</widget>
</item>
@@ -61,10 +47,31 @@
</property>
</widget>
</item>
<item row="3" column="1" colspan="2">
<widget class="QCheckBox" name="regularExpressionsCheckbox">
<item row="0" column="0">
<widget class="QLabel" name="searchLabel">
<property name="text">
<string>Use regular expressions</string>
<string>Search for:</string>
</property>
</widget>
</item>
<item row="1" column="1" colspan="2">
<widget class="QCheckBox" name="caseSensitiveCheckBox">
<property name="text">
<string>Case sensitive</string>
</property>
</widget>
</item>
<item row="4" column="1">
<widget class="QCheckBox" name="removeSoftHyphenCheckBox">
<property name="text">
<string>Remove soft hyphen at end of line</string>
</property>
</widget>
</item>
<item row="5" column="2">
<widget class="QPushButton" name="searchButton">
<property name="text">
<string>Search</string>
</property>
</widget>
</item>
@@ -118,12 +125,28 @@
</attribute>
<layout class="QVBoxLayout" name="verticalLayout_3">
<item>
<widget class="QTreeWidget" name="treeWidget">
<column>
<property name="text">
<string notr="true">1</string>
</property>
</column>
<widget class="QTableWidget" name="resultsTableWidget">
<property name="editTriggers">
<set>QAbstractItemView::NoEditTriggers</set>
</property>
<property name="alternatingRowColors">
<bool>true</bool>
</property>
<property name="selectionBehavior">
<enum>QAbstractItemView::SelectRows</enum>
</property>
<property name="sortingEnabled">
<bool>true</bool>
</property>
<property name="columnCount">
<number>3</number>
</property>
<attribute name="horizontalHeaderStretchLastSection">
<bool>true</bool>
</attribute>
<column/>
<column/>
<column/>
</widget>
</item>
</layout>