Add plaintext support

qml/components/DocumentFilter.notqml

@@ -12,6 +12,11 @@ GalleryFilterUnion {
         value: ".ps"
     }
 
+    GalleryEndsWithFilter {
+        property: "fileName"
+        value: ".txt"
+    }
+
     GalleryEndsWithFilter {
         property: "fileName"
         value: ".PDF"
@@ -22,4 +27,9 @@ GalleryFilterUnion {
         value: ".PS"
     }
 
+    GalleryEndsWithFilter {
+        property: "fileName"
+        value: ".TXT"
+    }
+
 }

qml/components/DocumentFilterOffice.notqml

@@ -12,6 +12,11 @@ GalleryFilterUnion {
         value: ".ps"
     }
 
+    GalleryEndsWithFilter {
+        property: "fileName"
+        value: ".txt"
+    }
+
     GalleryEndsWithFilter {
         property: "fileName"
         value: ".PDF"
@@ -22,6 +27,11 @@ GalleryFilterUnion {
         value: ".PS"
     }
 
+    GalleryEndsWithFilter {
+        property: "fileName"
+        value: ".TXT"
+    }
+
     GalleryEndsWithFilter {
         property: "fileName"
         value: ".odt"

qml/pages/FirstPage.qml

@@ -276,7 +276,8 @@ Page {
                         spacing: Theme.paddingMedium
                         Label {
                             id: format_unsupported_label
-                            visible: !supported_formats.pdf && !supported_formats.postscript && !supported_formats.office && !supported_formats.images
+                            visible: !supported_formats.pdf && !supported_formats.postscript && !supported_formats.plaintext
+                                     && !supported_formats.office && !supported_formats.images
                             color: "red"
                             font.pixelSize: Theme.fontSizeExtraSmall
                             text: qsTr("No compatible formats supported")
@@ -299,6 +300,14 @@ Page {
                             source: "image://theme/icon-m-file-other"
 
                         }
+                        HighlightImage {
+                            height: Theme.itemSizeExtraSmall/2
+                            width: Theme.itemSizeExtraSmall/2
+                            visible: supported_formats.plaintext
+                            highlightColor: "red"
+                            highlighted: !(selectedFile == "" || canPrint)
+                            source: "image://theme/icon-m-file-document"
+                        }
                         HighlightImage {
                             height: Theme.itemSizeExtraSmall/2
                             width: Theme.itemSizeExtraSmall/2
@@ -441,7 +450,7 @@ Page {
 
                 onSelectedContentPropertiesChanged: {
                     var mimeType = Mimer.get_type(selectedContentProperties.filePath)
-                    if(mimeType == "application/pdf" || mimeType == "application/postscript" || Mimer.isOffice(mimeType))
+                    if(mimeType == Mimer.PDF || mimeType == Mimer.Postscript || mimeType == Mimer.Plaintext || Mimer.isOffice(mimeType))
                     {
                         page.selectedFile = selectedContentProperties.filePath
                         page.selectedFileType = mimeType

qml/pages/utils.js

@@ -15,12 +15,15 @@ function supported_formats(printer, ConvertChecker, considerAdditionalFormats)
     var postscript = false;
     var office = false;
     var images = false;
+    var plaintext = false;
 
     if(has(formats, Mimer.PDF) ||
        (ConvertChecker.pdf && ( has(formats, Mimer.Postscript) || raster )))
     {
         pdf = true;
         mimetypes.push(Mimer.PDF);
+        plaintext = true;
+        mimetypes.push(Mimer.Plaintext);
     }
     if(has(formats, Mimer.Postscript))
     {
@@ -44,7 +47,7 @@ function supported_formats(printer, ConvertChecker, considerAdditionalFormats)
         mimetypes.push(Mimer.GIF);
     }
 
-    return {pdf: pdf, postscript: postscript, office: office, images: images, mimetypes: mimetypes};
+    return {pdf: pdf, postscript: postscript, plaintext: plaintext, office: office, images: images, mimetypes: mimetypes};
 }
 
 function has(arrayish, what)
@@ -316,6 +319,18 @@ function limitChoices(name, choices, mimeType, ConvertChecker)
             }
 
         }
+        else if(mimeType == Mimer.Plaintext)
+        {
+            // We convert plaintext to PDF internally
+            if(ConvertChecker.pdf)
+            {
+                return choices.filter(canConvertPdfTo)
+            }
+            else
+            {
+                return choices.filter(canTransferPdfAs)
+            }
+        }
         else if(mimeType == Mimer.Postscript)
         {
             return choices.filter(canTransferPostscriptAs)

src/convertworker.cpp

@@ -6,6 +6,8 @@
 #include <QImage>
 #include <QMatrix>
 #include <QPainter>
+#include <QTextDocument>
+#include <QPdfWriter>
 
 void ppm2PwgEnv(QStringList& env, bool urf, quint32 Quality, QString PaperSize,
                 quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble,
@@ -379,6 +381,171 @@ catch(const ConvertFailedException& e)
 }
 }
 
+void ConvertWorker::convertPlaintext(QNetworkRequest request, QString filename, QTemporaryFile* tempfile,
+                                     QString targetFormat, quint32 Colors, quint32 Quality, QString PaperSize,
+                                     quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble)
+{
+try {
+
+    if(!PaperSizes.contains(PaperSize))
+    {
+        qDebug() << "Unsupported paper size" << PaperSize;
+        throw ConvertFailedException(tr("Unsupported paper size"));
+    }
+    QPair<float,float> wh = PaperSizes[PaperSize];
+
+    QFile inFile(filename);
+    if(!inFile.open(QIODevice::ReadOnly))
+    {
+        throw ConvertFailedException(tr("Failed to open file"));
+    }
+
+    quint32 resolution = std::min(HwResX, HwResY);
+
+    QTemporaryFile tmpPdfFile;
+    tmpPdfFile.open();
+
+    QPdfWriter pdfWriter(tmpPdfFile.fileName());
+    QPageSize pageSize(QSizeF {wh.first, wh.second}, QPageSize::Millimeter);
+    pdfWriter.setPageSize(pageSize);
+    pdfWriter.setResolution(resolution);
+
+    qreal docHeight = pageSize.sizePixels(resolution).height();
+
+    QTextDocument doc;
+
+    QFont font = QFont("Courier");
+    font.setPointSizeF(1);
+
+    qreal charHeight = 0;
+
+    // Find the optimal font size
+    while(true) {
+        QFont tmpFont = font;
+        tmpFont.setPointSizeF(font.pointSizeF()+0.5);
+        QFontMetricsF qfm(tmpFont, &pdfWriter);
+
+        charHeight = qfm.lineSpacing();
+
+        if(charHeight*66 > docHeight)
+        {
+            break;
+        }
+        font=tmpFont;
+    }
+
+    QFontMetricsF qfm(font, &pdfWriter);
+
+    charHeight = qfm.height();
+
+    int textHeight = 60*charHeight;
+    qreal margin = ((docHeight-textHeight)/2);
+
+    doc.setDefaultFont(font);
+    (void)doc.documentLayout(); // wat
+
+    // Needs to be before painter
+    pdfWriter.setMargins({0, 0, 0, 0});
+
+    QPainter painter(&pdfWriter);
+
+    doc.documentLayout()->setPaintDevice(painter.device());
+    doc.setDocumentMargin(margin);
+
+    QRectF body = QRectF(0, 0, pdfWriter.width(), pdfWriter.height());
+    doc.setPageSize(body.size());
+
+    QString allText = inFile.readAll();
+    if(allText.startsWith("\f"))
+    {
+        allText.remove(0, 1);
+    }
+
+    if(allText.endsWith("\f"))
+    {
+        allText.chop(1);
+    }
+    else if(allText.endsWith("\f\n"))
+    {
+        allText.chop(2);
+    }
+
+    QStringList pages = allText.split('\f');
+
+    bool first = true;
+    int pageCount = 0;
+
+    foreach(QString page, pages)
+    {
+        if(!first)
+        {
+            pdfWriter.newPage();
+        }
+        first = false;
+
+        if(page.endsWith("\n"))
+        {
+            page.chop(1);
+        }
+        doc.setPlainText(page);
+
+        int p = 0; // Page number in this document, starting from 0
+
+        while(true)
+        {
+            painter.translate(body.left(), body.top() - p*body.height());
+            QRectF view(0, p*body.height(), body.width(), body.height());
+            painter.setClipRect(view);
+
+            QAbstractTextDocumentLayout::PaintContext context;
+            context.clip = view;
+            context.palette.setColor(QPalette::Text, Qt::black);
+            doc.documentLayout()->draw(&painter, context);
+
+            p++;
+            pageCount++;
+
+            if(p >= doc.pageCount())
+                break;
+
+            pdfWriter.newPage();
+        }
+    }
+
+    painter.end();
+
+
+    if(targetFormat == Mimer::PDF)
+    {
+        QFile tempfileAsFile(tempfile->fileName());
+        tempfileAsFile.open(QIODevice::Append);
+        tempfileAsFile.write(tmpPdfFile.readAll());
+        tempfileAsFile.close();
+    }
+    else if(targetFormat == Mimer::Postscript)
+    {
+        pdftoPs(PaperSize, TwoSided, 0, 0, tmpPdfFile.fileName(), tempfile);
+    }
+    else
+    {
+        pdfToRaster(targetFormat, Colors, Quality, PaperSize,
+                    HwResX, HwResY, TwoSided, Tumble,
+                    0, 0, pageCount,
+                    tmpPdfFile.fileName(), tempfile, false);
+    }
+
+    qDebug() << "Finished";
+
+    emit done(request, tempfile);
+
+}
+catch(const ConvertFailedException& e)
+{
+        tempfile->deleteLater();
+        emit failed(e.what() == QString("") ? tr("Conversion error") : e.what());
+}
+}
+
 QString ConvertWorker::getPopplerShortPaperSize(QString PaperSize)
 {
     QString ShortPaperSize;
@@ -456,7 +623,10 @@ void ConvertWorker::pdftoPs(QString PaperSize, bool TwoSided, quint32 PageRangeL
 
     QString ShortPaperSize = getPopplerShortPaperSize(PaperSize);
 
-    PdfToPsArgs << QStringList {"-f", QString::number(PageRangeLow), "-l", QString::number(PageRangeHigh)};
+    if(PageRangeLow != 0 && PageRangeHigh != 0)
+    {
+        PdfToPsArgs << QStringList {"-f", QString::number(PageRangeLow), "-l", QString::number(PageRangeHigh)};
+    }
 
     PdfToPsArgs << QStringList {"-paper", ShortPaperSize, pdfFileName, "-"};
 

src/convertworker.h

@@ -36,6 +36,10 @@ public slots:
                                quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble,
                                quint32 PageRangeLow, quint32 PageRangeHigh);
 
+    void convertPlaintext(QNetworkRequest request, QString filename, QTemporaryFile* tempfile,
+                          QString targetFormat, quint32 Colors, quint32 Quality, QString PaperSize,
+                          quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble);
+
 signals:
     void done(QNetworkRequest request, QTemporaryFile* data);
     void progress(qint64 done, qint64 pages);

src/ippprinter.cpp

@@ -34,6 +34,7 @@ IppPrinter::IppPrinter()
     connect(this, &IppPrinter::doConvertPdf, _worker, &ConvertWorker::convertPdf);
     connect(this, &IppPrinter::doConvertImage, _worker, &ConvertWorker::convertImage);
     connect(this, &IppPrinter::doConvertOfficeDocument, _worker, &ConvertWorker::convertOfficeDocument);
+    connect(this, &IppPrinter::doConvertPlaintext, _worker, &ConvertWorker::convertPlaintext);
     connect(_worker, &ConvertWorker::done, this, &IppPrinter::convertDone);
     connect(_worker, &ConvertWorker::progress, this, &IppPrinter::setProgress);
     connect(_worker, &ConvertWorker::failed, this, &IppPrinter::convertFailed);
@@ -310,7 +311,7 @@ QString targetFormatIfAuto(QString documentFormat, QString mimeType, QJsonArray
 {
     if(documentFormat == Mimer::OctetStream)
     {
-        if(mimeType == Mimer::PDF)
+        if(mimeType == Mimer::PDF || mimeType == Mimer::Plaintext)
         {
             return firstMatch(supportedMimeTypes, {Mimer::PDF, Mimer::Postscript, Mimer::PWG, Mimer::URF });
         }
@@ -534,6 +535,11 @@ void IppPrinter::print(QJsonObject attrs, QString filename, bool alwaysUseMediaC
             emit doConvertPdf(request, filename, tempfile, documentFormat, Colors, Quality,
                               PaperSize, HwResX, HwResY, TwoSided, Tumble, PageRangeLow, PageRangeHigh);
         }
+        else if(mimeType == Mimer::Plaintext)
+        {
+            emit doConvertPlaintext(request, filename, tempfile, documentFormat, Colors, Quality,
+                                    PaperSize, HwResX, HwResY, TwoSided, Tumble);
+        }
         else if (Mimer::isImage(mimeType))
         {
             emit doConvertImage(request, filename, tempfile, documentFormat, Colors, Quality,

src/ippprinter.h

@@ -54,6 +54,10 @@ signals:
                                  quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble,
                                  quint32 PageRangeLow, quint32 PageRangeHigh);
 
+    void doConvertPlaintext(QNetworkRequest request, QString filename, QTemporaryFile* tempfile,
+                            QString targetFormat, quint32 Colors, quint32 Quality, QString PaperSize,
+                            quint32 HwResX, quint32 HwResY, bool TwoSided, bool Tumble);
+
     void additionalDocumentFormatsChanged();
     void busyMessageChanged();
     void progressChanged();

src/mimer.cpp

@@ -18,6 +18,8 @@ const QString Mimer::RTF = "text/rtf";
 const QString Mimer::RTF_APP = "application/rtf";
 const QString Mimer::ODT = "application/vnd.oasis.opendocument.text";
 
+const QString Mimer::Plaintext = "text/plain";
+
 const QStringList Mimer::OfficeFormats = {DOC, DOCX, RTF, RTF_APP, ODT};
 
 Mimer::Mimer()

src/mimer.h

@@ -30,6 +30,8 @@ public:
     Q_PROPERTY(const QString RTF MEMBER RTF CONSTANT);
     Q_PROPERTY(const QString ODT MEMBER ODT CONSTANT);
 
+    Q_PROPERTY(const QString Plaintext MEMBER Plaintext CONSTANT);
+
     Q_PROPERTY(const QStringList OfficeFormats MEMBER OfficeFormats CONSTANT);
 
     static const QString OctetStream;
@@ -50,6 +52,8 @@ public:
     static const QString RTF_APP;
     static const QString ODT;
 
+    static const QString Plaintext;
+
     static const QStringList OfficeFormats;
 
     Q_INVOKABLE static bool isImage(QString mimeType)

translations/harbour-seaprint-de.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation>PDF Info nicht abrufbar</translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation>Öffnen der Datei fehlgeschlagen</translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint-es.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation>Error al obtener info de archivo PDF</translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation>Error al abrir archivo</translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint-fr.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint-nl.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation>Informatie over het PDF-bestand ophalen mislukt</translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation>Bestand openen mislukt</translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint-pl.ts

@@ -171,6 +171,10 @@
         <source>Failed to load image</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint-zh_CN.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation>获取PDF文件信息错误</translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation>打开文件失败</translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>

translations/harbour-seaprint.ts

@@ -171,6 +171,10 @@
         <source>Failed to get info about PDF file</source>
         <translation type="unfinished"></translation>
     </message>
+    <message>
+        <source>Failed to open file</source>
+        <translation type="unfinished"></translation>
+    </message>
 </context>
 <context>
     <name>CoverPage</name>