From 6d6f174f9400041ae0c01c198b5882942145986c Mon Sep 17 00:00:00 2001
From: Erik Ziegler <erik.ziegler@ulg.ac.be>
Date: Fri, 6 Nov 2015 20:52:28 +0100
Subject: [PATCH] Added double-click to zoom viewports

---
 .../imageViewerViewport.js                    |  3 +-
 .../imageViewerViewports.js                   | 71 +++++++++++++++++++
 2 files changed, 73 insertions(+), 1 deletion(-)

diff --git a/Packages/viewerbase/components/viewer/imageViewerViewport/imageViewerViewport.js b/Packages/viewerbase/components/viewer/imageViewerViewport/imageViewerViewport.js
index b989d318d..b32c5891f 100644
--- a/Packages/viewerbase/components/viewer/imageViewerViewport/imageViewerViewport.js
+++ b/Packages/viewerbase/components/viewer/imageViewerViewport/imageViewerViewport.js
@@ -284,6 +284,7 @@ function loadSeriesIntoViewport(data) {
             currentImageIdIndex: data.currentImageIdIndex,
             viewport: viewport
         };
+        ViewerData[contentId].loadedSeriesData = OHIF.viewer.loadedSeriesData;
         
         // Check if image plane (orientation / loction) data is present for the current image
         var imagePlane = cornerstoneTools.metaData.get('imagePlane', image.imageId);
@@ -446,5 +447,5 @@ Template.imageViewerViewport.events({
         var element = e.currentTarget;
         enablePrefetchOnElement(element);
         displayReferenceLines(element);
-    },
+    }
 });
\ No newline at end of file
diff --git a/Packages/viewerbase/components/viewer/imageViewerViewports/imageViewerViewports.js b/Packages/viewerbase/components/viewer/imageViewerViewports/imageViewerViewports.js
index 9b52aee3e..7550d2921 100644
--- a/Packages/viewerbase/components/viewer/imageViewerViewports/imageViewerViewports.js
+++ b/Packages/viewerbase/components/viewer/imageViewerViewports/imageViewerViewports.js
@@ -67,4 +67,75 @@ Template.imageViewerViewports.helpers({
         }
         return array;
     },
+});
+
+var savedSeriesData,
+    savedViewportRows,
+    savedViewportColumns;
+
+Template.imageViewerViewports.events({
+    'dblclick .imageViewerViewport': function(e) {
+        var container = $(".viewerMain").get(0);
+        var data;
+        var contentId = this.contentId || $("#viewer").parents(".tab-pane.active").attr('id');
+
+        // If there is more than one viewport on screen
+        // And one of them is double-clicked, it should be rendered alone
+        // If it is double-clicked again, the viewer should revert to the previous layout
+        if ($(e.currentTarget).hasClass('zoomed')) {
+            // Revert to saved settings
+            ViewerData[contentId].loadedSeriesData = $.extend(true, {}, savedSeriesData);
+            ViewerData[contentId].viewportRows = savedViewportRows;
+            ViewerData[contentId].viewportColumns = savedViewportColumns;
+
+            savedViewportRows = 0;
+            savedViewportColumns = 0;
+
+            data = {
+                viewportRows: ViewerData[contentId].viewportRows,
+                viewportColumns: ViewerData[contentId].viewportColumns,
+            };
+
+            // Render the imageViewerViewports template with these settings
+            $('#imageViewerViewports').remove();
+            UI.renderWithData(Template.imageViewerViewports, data, container);
+
+            // Remove the 'zoomed' class from any viewports
+            $('.imageViewerViewport').removeClass('zoomed');
+        } else {
+            // Zoom to single viewport
+
+            // If only one viewport is on-screen, stop here
+            if (ViewerData[contentId].viewportRows === 1 &&
+                ViewerData[contentId].viewportColumns === 1) {
+                return;
+            }
+
+            // Save the current settings
+            savedSeriesData = $.extend(true, {}, ViewerData[contentId].loadedSeriesData);
+            savedViewportRows = ViewerData[contentId].viewportRows;
+            savedViewportColumns = ViewerData[contentId].viewportColumns;
+            
+            // Get the clicked-on viewport's index
+            var viewportIndex = this.viewportIndex;
+
+            // Set the first viewport's data to be the same as the currently clicked-on viewport
+            ViewerData[contentId].loadedSeriesData[0] = ViewerData[contentId].loadedSeriesData[viewportIndex];
+
+            // Set the basic template data
+            data = {
+                viewportRows: 1,
+                viewportColumns: 1,
+            };
+
+            // Render the imageViewerViewports template with these settings
+            $('#imageViewerViewports').remove();
+            UI.renderWithData(Template.imageViewerViewports, data, container);
+
+            // Add the 'zoomed' class to the lone remaining viewport
+            $('.imageViewerViewport').eq(0).addClass('zoomed');
+
+        }
+        log.info('dblclick');
+    }
 });
\ No newline at end of file