begin work on qt gui - basic search & pdf preview
This commit is contained in:
parent
e006a95673
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68ab917756
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#include "clicklabel.h"
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void ClickLabel::mousePressEvent(QMouseEvent *event)
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{
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emit clicked();
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}
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#ifndef CLICKLABEL_H
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#define CLICKLABEL_H
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#include <QLabel>
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class ClickLabel : public QLabel
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{
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Q_OBJECT
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public:
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using QLabel::QLabel;
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signals:
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void clicked();
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protected:
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void mousePressEvent(QMouseEvent *event);
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};
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#endif // CLICKLABEL_H
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#include "mainwindow.h"
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#include <QApplication>
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#include <QSettings>
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#include "searchresult.h"
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#include "pdfpreview.h"
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int main(int argc, char *argv[])
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{
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QCoreApplication::setOrganizationName("quitesimple.org");
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QCoreApplication::setOrganizationDomain("quitesimple.org");
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QCoreApplication::setApplicationName("qss");
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QApplication a(argc, argv);
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qRegisterMetaType<QVector<SearchResult>>("QVector<SearchResult>");
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qRegisterMetaType<QVector<PdfPreview>>("QVector<PdfPreview>");
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qRegisterMetaType<PdfPreview>("PdfPreview");
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MainWindow w;
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w.showMaximized();
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return a.exec();
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}
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#include <poppler-qt5.h>
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#include <QLabel>
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#include <QtDebug>
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#include <QFileInfo>
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#include <QDesktopServices>
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#include <QUrl>
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#include <QClipboard>
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#include <QSettings>
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#include <QDateTime>
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#include "mainwindow.h"
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#include "ui_mainwindow.h"
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#include "clicklabel.h"
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MainWindow::MainWindow(QWidget *parent) : QMainWindow(parent), ui(new Ui::MainWindow)
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{
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ui->setupUi(this);
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searchWorker = new SearchWorker(QSettings().value("dbpath").toString());
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pdfWorker = new PdfWorker();
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searchWorker->moveToThread(&searchThread);
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pdfWorker->moveToThread(&pdfWorkerThread);
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connectSignals();
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searchThread.start();
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ui->treeResultsList->setContextMenuPolicy(Qt::ContextMenuPolicy::CustomContextMenu);
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ui->tabWidget->setCurrentIndex(0);
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}
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void MainWindow::connectSignals()
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{
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connect(ui->txtSearch, &QLineEdit::textChanged, this, &MainWindow::lineEditTextChanged);
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connect(ui->txtSearch, &QLineEdit::returnPressed, this, &MainWindow::lineEditReturnPressed);
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connect(this, &MainWindow::beginFileSearch, searchWorker, &SearchWorker::searchForFile);
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connect(this, &MainWindow::beginContentSearch, searchWorker, &SearchWorker::searchForContent);
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connect(searchWorker, &SearchWorker::searchResultsReady, this, &MainWindow::handleSearchResults);
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connect(searchWorker, &SearchWorker::searchCancelled, this, &MainWindow::handleCancelledSearch);
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connect(ui->treeResultsList, &QTreeWidget::itemActivated, this, &MainWindow::treeSearchItemActivated);
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connect(ui->treeResultsList, &QTreeWidget::customContextMenuRequested, this,
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&MainWindow::showSearchResultsContextMenu);
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connect(ui->tabWidget, &QTabWidget::currentChanged, this, &MainWindow::tabChanged);
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connect(this, &MainWindow::startPdfPreviewGeneration, pdfWorker, &PdfWorker::generatePreviews);
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connect(pdfWorker, &PdfWorker::previewReady, this, &MainWindow::pdfPreviewReceived);
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connect(pdfWorker, &PdfWorker::previewsFinished, [&] { this->pdfDirty = false; });
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}
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bool MainWindow::pdfTabActive()
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{
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return ui->tabWidget->currentIndex() == 1;
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}
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void MainWindow::tabChanged()
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{
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if(pdfTabActive() && pdfDirty)
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{
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makePdfPreview();
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}
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}
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void MainWindow::pdfPreviewReceived(PdfPreview preview)
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{
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ClickLabel *label = new ClickLabel();
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label->setPixmap(QPixmap::fromImage(preview.previewImage));
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ui->scrollAreaWidgetContents->layout()->addWidget(label);
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connect(label, &ClickLabel::clicked,
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[=]() { QDesktopServices::openUrl(QUrl::fromLocalFile(preview.documentPath)); });
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}
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void MainWindow::lineEditReturnPressed()
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{
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if(pdfTabActive() && pdfDirty)
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{
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makePdfPreview();
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}
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}
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void MainWindow::lineEditTextChanged()
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{
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QString q = ui->txtSearch->text();
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if(q.startsWith("|"))
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{
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q = q.mid(1);
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emit beginContentSearch(q);
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}
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else
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{
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emit beginFileSearch(q);
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}
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}
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void MainWindow::handleSearchResults(const QVector<SearchResult> &results)
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{
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this->pdfSearchResults.clear();
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ui->treeResultsList->clear();
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for(const SearchResult &result : results)
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{
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QFileInfo pathInfo(result.path);
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QString fileName = pathInfo.fileName();
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QTreeWidgetItem *item = new QTreeWidgetItem(ui->treeResultsList);
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QDateTime dt = QDateTime::fromSecsSinceEpoch(result.mtime);
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item->setIcon(0, iconProvider.icon(pathInfo));
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item->setText(0, fileName);
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item->setText(1, result.path);
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item->setText(2, dt.toString(Qt::ISODate));
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// TODO: this must be user definied or done more intelligently
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if(this->pdfSearchResults.size() < 300)
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{
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if(result.path.endsWith(".pdf"))
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{
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this->pdfSearchResults.append(result);
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}
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}
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}
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ui->treeResultsList->resizeColumnToContents(0);
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ui->treeResultsList->resizeColumnToContents(1);
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pdfDirty = !this->pdfSearchResults.empty();
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}
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void MainWindow::makePdfPreview()
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{
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if(!pdfWorkerThread.isRunning())
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pdfWorkerThread.start();
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qDeleteAll(ui->scrollAreaWidgetContents->children());
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ui->scrollAreaWidgetContents->setLayout(new QHBoxLayout());
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emit startPdfPreviewGeneration(this->pdfSearchResults, 0.75);
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}
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void MainWindow::handleCancelledSearch()
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{
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}
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void MainWindow::treeSearchItemActivated(QTreeWidgetItem *item, int i)
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{
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QDesktopServices::openUrl(QUrl::fromLocalFile(item->text(1)));
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}
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void MainWindow::showSearchResultsContextMenu(const QPoint &point)
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{
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QTreeWidgetItem *item = ui->treeResultsList->itemAt(point);
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if(item == nullptr)
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{
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return;
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}
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QMenu menu("SearchResult", this);
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menu.addAction("Copy filename to clipboard", [&] { QGuiApplication::clipboard()->setText(item->text(0)); });
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menu.addAction("Copy full path to clipboard", [&] { QGuiApplication::clipboard()->setText(item->text(1)); });
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menu.addAction("Open containing folder",
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[&]
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{
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QFileInfo pathinfo(item->text(1));
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QString dir = pathinfo.absolutePath();
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QDesktopServices::openUrl(QUrl::fromLocalFile(dir));
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});
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menu.exec(QCursor::pos());
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}
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MainWindow::~MainWindow()
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{
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delete ui;
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}
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#ifndef MAINWINDOW_H
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#define MAINWINDOW_H
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#include <QMainWindow>
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#include <QThread>
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#include <QTreeWidgetItem>
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#include <QFileIconProvider>
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#include "searchworker.h"
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#include "pdfworker.h"
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namespace Ui
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{
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class MainWindow;
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}
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class MainWindow : public QMainWindow
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{
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Q_OBJECT
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public:
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explicit MainWindow(QWidget *parent = 0);
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~MainWindow();
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signals:
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void beginFileSearch(const QString &query);
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void beginContentSearch(const QString &query);
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void startPdfPreviewGeneration(QVector<SearchResult> paths, double scalefactor);
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private:
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Ui::MainWindow *ui;
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QFileIconProvider iconProvider;
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bool pdfDirty;
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SearchWorker *searchWorker;
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PdfWorker *pdfWorker;
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void add(QString path, unsigned int page);
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QThread searchThread;
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QThread pdfWorkerThread;
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QVector<SearchResult> pdfSearchResults;
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void connectSignals();
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void makePdfPreview();
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bool pdfTabActive();
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private slots:
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void lineEditReturnPressed();
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void lineEditTextChanged();
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void handleSearchResults(const QVector<SearchResult> &results);
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void handleCancelledSearch();
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void treeSearchItemActivated(QTreeWidgetItem *item, int i);
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void showSearchResultsContextMenu(const QPoint &point);
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void tabChanged();
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void pdfPreviewReceived(PdfPreview preview);
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};
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#endif // MAINWINDOW_H
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<?xml version="1.0" encoding="UTF-8"?>
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<ui version="4.0">
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<class>MainWindow</class>
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<widget class="QMainWindow" name="MainWindow">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>1221</width>
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<height>614</height>
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</rect>
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</property>
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<property name="windowTitle">
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<string>MainWindow</string>
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</property>
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<widget class="QWidget" name="centralWidget">
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<layout class="QVBoxLayout" name="verticalLayout">
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<item>
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<widget class="QLineEdit" name="txtSearch"/>
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</item>
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<item>
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<widget class="QTabWidget" name="tabWidget">
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<property name="tabPosition">
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<enum>QTabWidget::South</enum>
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</property>
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<property name="currentIndex">
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<number>1</number>
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</property>
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<widget class="QWidget" name="resultsTab">
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<attribute name="title">
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<string>Search results</string>
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</attribute>
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<layout class="QVBoxLayout" name="verticalLayout_3">
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<item>
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<widget class="QTreeWidget" name="treeResultsList">
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<column>
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<property name="text">
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<string>Filename</string>
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</property>
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</column>
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<column>
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<property name="text">
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<string>Path</string>
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</property>
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</column>
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<column>
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<property name="text">
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<string>Last modified</string>
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</property>
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</column>
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<column>
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<property name="text">
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<string>Size</string>
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</property>
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</column>
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</widget>
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</item>
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</layout>
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</widget>
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<widget class="QWidget" name="pdfPreviewTab">
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<attribute name="title">
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<string>PDF-Preview</string>
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</attribute>
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<layout class="QVBoxLayout" name="verticalLayout_2" stretch="1,0">
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<item>
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<widget class="QScrollArea" name="scrollArea">
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<property name="layoutDirection">
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<enum>Qt::LeftToRight</enum>
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</property>
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<property name="widgetResizable">
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<bool>true</bool>
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</property>
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<property name="alignment">
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<set>Qt::AlignCenter</set>
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</property>
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<widget class="QWidget" name="scrollAreaWidgetContents">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>1179</width>
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<height>428</height>
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</rect>
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</property>
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<layout class="QHBoxLayout" name="horizontalLayout"/>
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</widget>
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</widget>
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</item>
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<item>
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<layout class="QHBoxLayout" name="horizontalLayout_2">
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<item>
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<widget class="QLabel" name="lblScale">
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<property name="text">
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<string>Scale</string>
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</property>
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</widget>
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</item>
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<item>
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<widget class="QComboBox" name="comboBox"/>
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</item>
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</layout>
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</item>
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</layout>
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</widget>
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</widget>
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</item>
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</layout>
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</widget>
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<widget class="QMenuBar" name="menuBar">
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<property name="geometry">
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<rect>
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<x>0</x>
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<y>0</y>
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<width>1221</width>
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<height>20</height>
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</rect>
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</property>
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</widget>
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<widget class="QToolBar" name="mainToolBar">
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<attribute name="toolBarArea">
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<enum>TopToolBarArea</enum>
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</attribute>
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<attribute name="toolBarBreak">
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<bool>false</bool>
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</attribute>
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</widget>
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<widget class="QStatusBar" name="statusBar"/>
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</widget>
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<layoutdefault spacing="6" margin="11"/>
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<resources/>
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<connections/>
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</ui>
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#include "pdfpreview.h"
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PdfPreview::PdfPreview()
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{
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}
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#ifndef PDFPREVIEW_H
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#define PDFPREVIEW_H
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#include <QImage>
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class PdfPreview
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{
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public:
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PdfPreview();
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QImage previewImage;
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QString documentPath;
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};
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#endif // PDFPREVIEW_H
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#include <QApplication>
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#include <QScreen>
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#include <QDebug>
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#include "pdfworker.h"
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PdfWorker::PdfWorker()
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{
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}
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Poppler::Document *PdfWorker::document(QString path)
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{
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if(this->documentcache.contains(path))
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return this->documentcache.value(path);
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Poppler::Document *result = Poppler::Document::load(path);
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result->setRenderHint(Poppler::Document::TextAntialiasing);
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this->documentcache.insert(path, result);
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return result;
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}
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void PdfWorker::generatePreviews(QVector<SearchResult> paths, double scalefactor)
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{
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for(SearchResult &sr : paths)
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{
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Poppler::Document *doc = document(sr.path);
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qDebug() << sr.path;
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if(doc->isLocked())
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{
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continue;
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}
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int p = (int)sr.page - 1;
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if(p < 0)
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p = 0;
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Poppler::Page *pdfpage = doc->page(p);
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QImage image = pdfpage->renderToImage(QGuiApplication::primaryScreen()->physicalDotsPerInchX() * scalefactor,
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QGuiApplication::primaryScreen()->physicalDotsPerInchY() * scalefactor);
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PdfPreview preview;
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preview.previewImage = image;
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preview.documentPath = sr.path;
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emit previewReady(preview);
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}
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emit previewsFinished();
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}
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#ifndef PDFWORKER_H
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#define PDFWORKER_H
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#include <QObject>
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#include <QImage>
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#include <QHash>
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#include <poppler-qt5.h>
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#include "pdfpreview.h"
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#include "searchresult.h"
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class PdfWorker : public QObject
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{
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Q_OBJECT
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private:
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QHash<QString, Poppler::Document *> documentcache;
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Poppler::Document *document(QString path);
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public:
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PdfWorker();
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public slots:
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void generatePreviews(QVector<SearchResult> paths, double scalefactor);
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signals:
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void previewReady(PdfPreview p);
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void previewsFinished();
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};
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#endif // PDFWORKER_H
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#-------------------------------------------------
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#
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# Project created by QtCreator 2018-08-09T12:23:48
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#
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#-------------------------------------------------
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QT += core gui
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|
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greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
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|
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TARGET = qss
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TEMPLATE = app
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# The following define makes your compiler emit warnings if you use
|
||||
# any feature of Qt which has been marked as deprecated (the exact warnings
|
||||
# depend on your compiler). Please consult the documentation of the
|
||||
# deprecated API in order to know how to port your code away from it.
|
||||
DEFINES += QT_DEPRECATED_WARNINGS
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|
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# You can also make your code fail to compile if you use deprecated APIs.
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# In order to do so, uncomment the following line.
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# You can also select to disable deprecated APIs only up to a certain version of Qt.
|
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#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
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||||
|
||||
|
||||
SOURCES += \
|
||||
main.cpp \
|
||||
mainwindow.cpp \
|
||||
searchresult.cpp \
|
||||
searchworker.cpp \
|
||||
pdfworker.cpp \
|
||||
pdfpreview.cpp \
|
||||
clicklabel.cpp
|
||||
|
||||
HEADERS += \
|
||||
mainwindow.h \
|
||||
searchresult.h \
|
||||
searchworker.h \
|
||||
pdfworker.h \
|
||||
pdfpreview.h \
|
||||
clicklabel.h
|
||||
|
||||
FORMS += \
|
||||
mainwindow.ui
|
||||
|
||||
INCLUDEPATH += /usr/include/poppler/qt5/
|
||||
LIBS += -lpoppler-qt5
|
||||
QT += widgets sql
|
||||
|
||||
|
|
@ -0,0 +1,5 @@
|
|||
#include "searchresult.h"
|
||||
|
||||
SearchResult::SearchResult()
|
||||
{
|
||||
}
|
||||
|
|
@ -0,0 +1,14 @@
|
|||
#ifndef SEARCHRESULT_H
|
||||
#define SEARCHRESULT_H
|
||||
#include <QString>
|
||||
|
||||
class SearchResult
|
||||
{
|
||||
public:
|
||||
unsigned int page;
|
||||
QString path;
|
||||
uint64_t mtime;
|
||||
SearchResult();
|
||||
};
|
||||
|
||||
#endif // SEARCHRESULT_H
|
||||
|
|
@ -0,0 +1,55 @@
|
|||
#include "searchworker.h"
|
||||
|
||||
#include <QDebug>
|
||||
SearchWorker::SearchWorker()
|
||||
{
|
||||
}
|
||||
SearchWorker::SearchWorker(const QString &dbpath)
|
||||
{
|
||||
QSqlDatabase db = QSqlDatabase::addDatabase("QSQLITE");
|
||||
db.setDatabaseName(dbpath);
|
||||
if(!db.open())
|
||||
{
|
||||
qDebug() << "failed to open database";
|
||||
}
|
||||
queryContent = new QSqlQuery(db);
|
||||
queryFile = new QSqlQuery(db);
|
||||
queryFile->prepare("SELECT path, mtime FROM file WHERE path LIKE ? ORDER BY mtime DESC");
|
||||
|
||||
queryContent->prepare("SELECT file.path, content.page, file.mtime FROM file INNER JOIN content ON file.id = "
|
||||
"content.fileid INNER JOIN content_fts ON content.id = content_fts.ROWID WHERE "
|
||||
"content_fts.content MATCH ? ORDER By file.mtime DESC, content.page ASC");
|
||||
}
|
||||
|
||||
void SearchWorker::searchForFile(const QString &query)
|
||||
{
|
||||
QVector<SearchResult> results;
|
||||
queryFile->addBindValue("%" + query + "%");
|
||||
queryFile->exec();
|
||||
while(queryFile->next())
|
||||
{
|
||||
SearchResult result;
|
||||
result.page = 0;
|
||||
result.path = queryFile->value(0).toString();
|
||||
result.mtime = queryFile->value(1).toUInt();
|
||||
|
||||
results.append(result);
|
||||
}
|
||||
emit searchResultsReady(results);
|
||||
}
|
||||
void SearchWorker::searchForContent(const QString &query)
|
||||
{
|
||||
QVector<SearchResult> results;
|
||||
queryContent->addBindValue(query);
|
||||
queryContent->exec();
|
||||
while(queryContent->next())
|
||||
{
|
||||
SearchResult result;
|
||||
|
||||
result.path = queryContent->value(0).toString();
|
||||
result.page = queryContent->value(1).toUInt();
|
||||
result.mtime = queryContent->value(2).toUInt();
|
||||
results.append(result);
|
||||
}
|
||||
emit searchResultsReady(results);
|
||||
}
|
||||
|
|
@ -0,0 +1,28 @@
|
|||
#ifndef SEARCHWORKER_H
|
||||
#define SEARCHWORKER_H
|
||||
#include <QObject>
|
||||
#include <QSqlDatabase>
|
||||
#include <QSqlQuery>
|
||||
#include <QString>
|
||||
#include <QVector>
|
||||
#include "searchresult.h"
|
||||
|
||||
class SearchWorker : public QObject
|
||||
{
|
||||
Q_OBJECT
|
||||
private:
|
||||
QSqlQuery *queryFile;
|
||||
QSqlQuery *queryContent;
|
||||
|
||||
public:
|
||||
SearchWorker();
|
||||
SearchWorker(const QString &dbpath);
|
||||
public slots:
|
||||
void searchForFile(const QString &query);
|
||||
void searchForContent(const QString &query);
|
||||
signals:
|
||||
void searchResultsReady(const QVector<SearchResult> &results);
|
||||
void searchCancelled();
|
||||
};
|
||||
|
||||
#endif // SEARCHWORKER_H
|
||||
Loading…
Reference in New Issue