New upstream version 2.9.22

[sven/vym.git] / src / export-latex.cpp

diff --git a/src/export-latex.cpp b/src/export-latex.cpp
new file mode 100644 (file)
index 0000000..b4aaa8d
--- /dev/null
+++ b/src/export-latex.cpp
@@ -0,0 +1,113 @@
+#include "export-latex.h"
+
+#include "mainwindow.h"
+#include <QMessageBox>
+
+extern Main *mainWindow;
+extern Settings settings;
+
+ExportLaTeX::ExportLaTeX()
+{
+    exportName = "LaTeX";
+    filter = "LaTeX files (*.tex);;All (* *.*)";
+
+    // Note: key in hash on left side is the regular expression, which
+    // will be replaced by string on right side
+    // E.g. a literal $ will be replaced by \$
+    esc["\\$"] = "\\$";
+    esc["\\^"] = "\\^";
+    esc["%"] = "\\%";
+    esc["&"] = "\\&";
+    esc["~"] = "\\~";
+    esc["_"] = "\\_";
+    esc["\\\\"] = "\\";
+    esc["\\{"] = "\\{";
+    esc["\\}"] = "\\}";
+}
+
+QString ExportLaTeX::escapeLaTeX(const QString &s)
+{
+    QString r = s;
+
+    QRegExp rx;
+    rx.setMinimal(true);
+
+    foreach (QString p, esc.keys()) {
+        rx.setPattern(p);
+        r.replace(rx, esc[p]);
+    }
+    return r;
+}
+
+void ExportLaTeX::doExport()
+{
+    // Exports a map to a LaTex file.
+    // This file needs to be included
+    // or inported into a LaTex document
+    // it will not add a preamble, or anything
+    // that makes a full LaTex document.
+    QFile file(filePath);
+    if (!file.open(QIODevice::WriteOnly)) {
+        QMessageBox::critical(
+            0, QObject::tr("Critical Export Error"),
+            QObject::tr("Could not export as LaTeX to %1").arg(filePath));
+        mainWindow->statusMessage(QString(QObject::tr("Export failed.")));
+        return;
+    }
+
+    // Read default section names
+    QStringList sectionNames;
+    sectionNames << ""
+                 << "chapter"
+                 << "section"
+                 << "subsection"
+                 << "subsubsection"
+                 << "paragraph";
+
+    for (int i = 0; i < 6; i++)
+        sectionNames.replace(
+            i, settings
+                   .value(QString("/export/latex/sectionName-%1").arg(i),
+                          sectionNames.at(i))
+                   .toString());
+
+    QString out;
+
+    // Main loop over all branches
+    QString s;
+    BranchItem *cur = NULL;
+    BranchItem *prev = NULL;
+    model->nextBranch(cur, prev);
+    while (cur) {
+        if (!cur->hasHiddenExportParent()) {
+            int d = cur->depth();
+            s = escapeLaTeX(cur->getHeadingPlain());
+            if (sectionNames.at(d).isEmpty() || d >= sectionNames.count())
+                out += s + "\n";
+            else {
+                out += "\n";
+                out += "\\" + sectionNames.at(d) + "{" + s + "}";
+                out += "\n";
+            }
+            // If necessary, write note
+            if (!cur->isNoteEmpty()) {
+                out += (cur->getNoteASCII());
+                out += "\n";
+            }
+        }
+        model->nextBranch(cur, prev);
+    }
+
+    QTextStream ts(&file);
+    ts.setCodec("UTF-8");
+    ts << out;
+    file.close();
+
+    QClipboard *clipboard = QGuiApplication::clipboard();
+    clipboard->setText(out);
+
+    result = ExportBase::Success;
+
+    displayedDestination = filePath;
+    completeExport();
+}