From a1fb28aafccf64d6438575dd0dd684701d0ef132 Mon Sep 17 00:00:00 2001
From: David Sarrut <david.sarrut@creatis.insa-lyon.fr>
Date: Wed, 5 Oct 2011 11:05:59 +0200
Subject: [PATCH] Add an option to the screenshots menu to save all slices
 (with ROI and transparency)

---
 vv/qt_ui/vvMainWindow.ui | 15 ++++++++++----
 vv/vvMainWindow.cxx      | 43 ++++++++++++++++++++++++++++++++++++++++
 vv/vvMainWindow.h        |  1 +
 3 files changed, 55 insertions(+), 4 deletions(-)

diff --git a/vv/qt_ui/vvMainWindow.ui b/vv/qt_ui/vvMainWindow.ui
index a6801c2..e03cb23 100644
--- a/vv/qt_ui/vvMainWindow.ui
+++ b/vv/qt_ui/vvMainWindow.ui
@@ -626,7 +626,7 @@
            <number>2</number>
           </property>
           <item row="0" column="0">
-           <widget class="QVTKWidget" name="NOViewWidget">
+           <widget class="QVTKWidget" name="NOViewWidget" native="true">
             <property name="mouseTracking">
              <bool>true</bool>
             </property>
@@ -666,7 +666,7 @@
            <number>2</number>
           </property>
           <item row="0" column="0">
-           <widget class="QVTKWidget" name="SOViewWidget">
+           <widget class="QVTKWidget" name="SOViewWidget" native="true">
             <property name="mouseTracking">
              <bool>true</bool>
             </property>
@@ -708,7 +708,7 @@
            <number>2</number>
           </property>
           <item row="0" column="0">
-           <widget class="QVTKWidget" name="NEViewWidget">
+           <widget class="QVTKWidget" name="NEViewWidget" native="true">
             <property name="mouseTracking">
              <bool>true</bool>
             </property>
@@ -745,7 +745,7 @@
            <number>2</number>
           </property>
           <item row="0" column="0">
-           <widget class="QVTKWidget" name="SEViewWidget">
+           <widget class="QVTKWidget" name="SEViewWidget" native="true">
             <property name="sizePolicy">
              <sizepolicy hsizetype="Expanding" vsizetype="Expanding">
               <horstretch>0</horstretch>
@@ -833,6 +833,8 @@
     <addaction name="actionNorth_East_Window"/>
     <addaction name="actionSouth_West_Window"/>
     <addaction name="actionSouth_East_Window"/>
+    <addaction name="separator"/>
+    <addaction name="actionSave_all_slices"/>
    </widget>
    <widget class="QMenu" name="menuExperimental">
     <property name="title">
@@ -1112,6 +1114,11 @@
     <string>Register vv</string>
    </property>
   </action>
+  <action name="actionSave_all_slices">
+   <property name="text">
+    <string>Save all slices (Top-Left view)</string>
+   </property>
+  </action>
  </widget>
  <customwidgets>
   <customwidget>
diff --git a/vv/vvMainWindow.cxx b/vv/vvMainWindow.cxx
index 596e6af..ca0d09f 100644
--- a/vv/vvMainWindow.cxx
+++ b/vv/vvMainWindow.cxx
@@ -275,6 +275,7 @@ vvMainWindow::vvMainWindow():vvMainWindowBase()
   connect(actionNorth_West_Window,SIGNAL(triggered()),this,SLOT(SaveNOScreenshot()));
   connect(actionSouth_East_Window,SIGNAL(triggered()),this,SLOT(SaveSEScreenshot()));
   connect(actionSouth_West_Window,SIGNAL(triggered()),this,SLOT(SaveSOScreenshot()));
+  connect(actionSave_all_slices,SIGNAL(triggered()),this,SLOT(SaveScreenshotAllSlices()));
 
   connect(DataTree,SIGNAL(itemSelectionChanged()),this,SLOT(ImageInfoChanged()));
   connect(DataTree,SIGNAL(itemClicked(QTreeWidgetItem*, int)),this,
@@ -2573,6 +2574,48 @@ void vvMainWindow::SaveSEScreenshot()
 //------------------------------------------------------------------------------
 
 
+//------------------------------------------------------------------------------
+void vvMainWindow::SaveScreenshotAllSlices()
+{
+  QVTKWidget *widget = NOViewWidget;
+  vtkSmartPointer<vtkRenderWindow>  renderWindow = widget->GetRenderWindow();
+
+  int index = 0;// GetSlicerIndexFromItem(DataTree->selectedItems()[0]);
+  vvSlicerManager * SM = mSlicerManagers[index];
+  vvImage * image = SM->GetImage();
+  vvSlicer * slicer = SM->GetSlicer(0);
+  int orientation = slicer->GetOrientation();
+  int nbSlices = image->GetSize()[orientation];
+
+  // Select filename base
+  QString filename = QFileDialog::getSaveFileName(this,
+                                                  tr("Save As (filename will be completed by slice number)"),
+                                                  itksys::SystemTools::GetFilenamePath(mSlicerManagers[index]->GetFileName()).c_str(),
+                                                  "Images( *.png);;");
+
+  // Loop on slices
+  for(uint i=0; i<nbSlices; i++) {
+    // Change the slice
+    slicer->SetSlice(i);
+    
+    // Screenshot  
+    vtkSmartPointer<vtkWindowToImageFilter> windowToImageFilter = vtkSmartPointer<vtkWindowToImageFilter>::New();
+    windowToImageFilter->SetInput(renderWindow);
+    windowToImageFilter->SetMagnification(1);
+    windowToImageFilter->SetInputBufferTypeToRGBA(); //also record the alpha (transparency) channel
+    windowToImageFilter->Update();
+    
+    vtkSmartPointer<vtkPNGWriter> writer = vtkSmartPointer<vtkPNGWriter>::New();
+    std::string fn = itksys::SystemTools::GetFilenameWithoutLastExtension(filename.toStdString());
+    fn = fn + "_" + clitk::toString(i) + itksys::SystemTools::GetFilenameLastExtension(filename.toStdString());
+    writer->SetFileName(fn.c_str());
+    writer->SetInput(windowToImageFilter->GetOutput());
+    writer->Write();
+  }
+}
+//------------------------------------------------------------------------------
+
+
 //------------------------------------------------------------------------------
 void vvMainWindow::SaveScreenshot(QVTKWidget *widget)
 {
diff --git a/vv/vvMainWindow.h b/vv/vvMainWindow.h
index 8ee5ab2..8a2f036 100644
--- a/vv/vvMainWindow.h
+++ b/vv/vvMainWindow.h
@@ -133,6 +133,7 @@ public slots:
   void SaveNOScreenshot();
   void SaveSEScreenshot();
   void SaveSOScreenshot();
+  void SaveScreenshotAllSlices();
 
   void ShowContextMenu(QPoint point);
   void CloseImage();
-- 
2.47.1