button to get SVG file

src/gui/peptide_detail_view/peptide_detail_view.ui

@@ -319,6 +319,13 @@
             </layout>
            </widget>
           </item>
+          <item>
+           <widget class="QPushButton" name="pushButton_2">
+            <property name="text">
+             <string>get SVG</string>
+            </property>
+           </widget>
+          </item>
          </layout>
         </item>
        </layout>
@@ -387,8 +394,8 @@
    <slot>doMsmsPrecisionValueChanged(double)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>767</x>
-     <y>350</y>
+     <x>804</x>
+     <y>325</y>
     </hint>
     <hint type="destinationlabel">
      <x>870</x>
@@ -403,8 +410,8 @@
    <slot>doMsmsPrecisionUnitChanged(QString)</slot>
    <hints>
     <hint type="sourcelabel">
-     <x>680</x>
-     <y>355</y>
+     <x>716</x>
+     <y>324</y>
     </hint>
     <hint type="destinationlabel">
      <x>873</x>
@@ -412,11 +419,28 @@
     </hint>
    </hints>
   </connection>
+  <connection>
+   <sender>pushButton_2</sender>
+   <signal>clicked()</signal>
+   <receiver>PeptideDetailView</receiver>
+   <slot>doSaveSvg()</slot>
+   <hints>
+    <hint type="sourcelabel">
+     <x>729</x>
+     <y>348</y>
+    </hint>
+    <hint type="destinationlabel">
+     <x>866</x>
+     <y>334</y>
+    </hint>
+   </hints>
+  </connection>
  </connections>
  <slots>
   <slot>chooseDefaultMzDataDir()</slot>
   <slot>openInPeptideViewer()</slot>
   <slot>doMsmsPrecisionValueChanged(double)</slot>
   <slot>doMsmsPrecisionUnitChanged(QString)</slot>
+  <slot>doSaveSvg()</slot>
  </slots>
 </ui>

src/gui/peptide_detail_view/peptidewindow.cpp

@@ -23,6 +23,7 @@
 
 #include "peptidewindow.h"
 #include "../project_view/projectwindow.h"
+#include "../../config.h"
 #include "ui_peptide_detail_view.h"
 #include <pappsomspp/exception/exceptionnotfound.h>
 #include <pappsomspp/spectrum/qualifiedspectrum.h>
@@ -31,6 +32,8 @@
 #include <QSettings>
 #include <QDebug>
 #include <QProcess>
+#include <QSvgGenerator>
+#include <QMessageBox>
 
 
 void SpectrumSpLoaderThread::doLoadSpectrumSp (PeptideMatch * p_peptide_match) {
@@ -229,7 +232,7 @@ void PeptideWindow::setPeptideMatch(PeptideMatch * p_peptide_match) {
 
 void PeptideWindow::doMsmsPrecisionUnitChanged(QString unit) {
 
-  qDebug() << "PeptideWindow::doMsmsPrecisionUnitChanged begin " << unit;
+    qDebug() << "PeptideWindow::doMsmsPrecisionUnitChanged begin " << unit;
     QSettings settings;
     pappso::mz precision = ui->precision_spinbox->value();
 
@@ -242,8 +245,8 @@ void PeptideWindow::doMsmsPrecisionUnitChanged(QString unit) {
     ui->spectrumWidget->setPrecision(_p_precision);
 
     settings.setValue("peptideview/precision_unit", unit);
-    
-  qDebug() << "PeptideWindow::doMsmsPrecisionUnitChanged end " << unit;
+
+    qDebug() << "PeptideWindow::doMsmsPrecisionUnitChanged end " << unit;
 }
 
 void PeptideWindow::doMsmsPrecisionValueChanged(double precision_value) {
@@ -262,3 +265,41 @@ void PeptideWindow::doMsmsPrecisionValueChanged(double precision_value) {
 
     settings.setValue("peptideview/precision_value", precision);
 }
+
+
+void PeptideWindow::doSaveSvg() {
+
+    try {
+        QSettings settings;
+        QString default_location = settings.value("path/export_svg", "").toString();
+
+        QString filename = QFileDialog::getSaveFileName(this, tr("Save SVG file"),
+                           QString("%1/untitled.svg").arg(default_location),
+                           tr("Scalable Vector Graphic (*.svg)"));
+
+        if (filename.isEmpty()) {
+            return;
+        }
+
+        settings.setValue("path/export_svg", QFileInfo(filename).absolutePath());
+
+
+        QSvgGenerator generator;
+        //generator.setOutputDevice(&buffer);
+        generator.setFileName(filename);
+        generator.setSize(QSize(1200, 500));
+        generator.setViewBox(QRect(0, 0, 1200, 500));
+        generator.setTitle(tr("%1 SVG spectrum generator").arg(SOFTWARE_NAME));
+        generator.setDescription(tr("This is an annotated SVG spectrum"));
+        QPainter painter;
+        painter.begin(&generator);
+
+        ui->spectrumWidget->paint(painter);
+        painter.end();
+        //emit operateXpipFile(filename);
+    }
+    catch (pappso::PappsoException & error) {
+        QMessageBox::warning(this,
+                             tr("Error trying to save spectrum to SVG file :"), error.qwhat());
+    }
+}

src/gui/peptide_detail_view/peptidewindow.h

@@ -78,6 +78,7 @@ protected slots:
     void doSpectrumSpReady(pappso::SpectrumSp spectrum_sp, QString error);
     void doMsmsPrecisionValueChanged(double precision_value);
     void doMsmsPrecisionUnitChanged(QString unit);
+    void doSaveSvg();
     void chooseDefaultMzDataDir();
     void openInPeptideViewer();
 protected :