MacGui: show a preview image in the summary tab.

macosx/English.lproj/HBSummaryViewController.xib

@@ -9,6 +9,7 @@
     <objects>
         <customObject id="-2" userLabel="File's Owner" customClass="HBSummaryViewController">
             <connections>
+                <outlet property="previewView" destination="m5a-0z-QQ4" id="1G9-3A-dM4"/>
                 <outlet property="view" destination="Hz6-mo-xeY" id="0bl-1N-x8E"/>
             </connections>
         </customObject>
@@ -158,7 +159,7 @@ Multiline Label
Multiline Label</string>
                         <color key="backgroundColor" name="controlColor" catalog="System" colorSpace="catalog"/>
                     </textFieldCell>
                 </textField>
-                <customView wantsLayer="YES" translatesAutoresizingMaskIntoConstraints="NO" id="m5a-0z-QQ4">
+                <customView wantsLayer="YES" translatesAutoresizingMaskIntoConstraints="NO" id="m5a-0z-QQ4" customClass="HBPreviewView">
                     <rect key="frame" x="254" y="16" width="597" height="334"/>
                 </customView>
             </subviews>

macosx/HBController.m

@@ -813,7 +813,9 @@
 
     if (job)
     {
-        fPreviewController.generator = [[HBPreviewGenerator alloc] initWithCore:self.core job:job];
+        HBPreviewGenerator *generator = [[HBPreviewGenerator alloc] initWithCore:self.core job:job];
+        fPreviewController.generator = generator;
+        self.summaryController.generator = generator;
 
         HBTitle *title = job.title;
 
@@ -830,6 +832,7 @@
     else
     {
         fPreviewController.generator = nil;
+        self.summaryController.generator = nil;
     }
     fPreviewController.picture = job.picture;
 

macosx/HBPreviewView.h

@@ -40,6 +40,11 @@ NS_ASSUME_NONNULL_BEGIN
  */
 @property (nonatomic, readwrite) BOOL showBorder;
 
+/**
+ *  If enabled, the view will show a shadow around the image.
+ */
+@property (nonatomic, readwrite) BOOL showShadow;
+
 /**
  * Given the size of the preview image to be shown, returns the best possible
  * size for the view.

macosx/HBPreviewView.m

@@ -118,6 +118,11 @@
     [self _updatePreviewLayout];
 }
 
+- (void)setShowShadow:(BOOL)showShadow
+{
+    _backLayer.shadowOpacity = showShadow ? 0.5f : 0;
+}
+
 - (void)setFrame:(NSRect)newRect {
     // A change in size has required the view to be invalidated.
     if ([self inLiveResize]) {

macosx/HBSummaryViewController.h

@@ -7,9 +7,15 @@
 #import <Cocoa/Cocoa.h>
 
 @class HBJob;
+@class HBPreviewGenerator;
+
+NS_ASSUME_NONNULL_BEGIN
 
 @interface HBSummaryViewController : NSViewController
 
-@property (nonatomic, readwrite, weak) HBJob *job;
+@property (nonatomic, readwrite, weak, nullable) HBJob *job;
+@property (nonatomic, readwrite, weak, nullable) HBPreviewGenerator *generator;
 
 @end
+
+NS_ASSUME_NONNULL_END

macosx/HBSummaryViewController.m

@@ -5,18 +5,40 @@
  It may be used under the terms of the GNU General Public License. */
 
 #import "HBSummaryViewController.h"
+#import "HBPreviewView.h"
+#import "HBPreviewGenerator.h"
 
-@import HandBrakeKit.HBJob;
+@import HandBrakeKit;
 
 @interface HBSummaryViewController ()
 
+@property (strong) IBOutlet HBPreviewView *previewView;
+
 @end
 
 @implementation HBSummaryViewController
 
 - (void)loadView {
     [super loadView];
-    // Do view setup here.
+    self.previewView.showShadow = NO;
 }
 
+- (void)setGenerator:(HBPreviewGenerator *)generator
+{
+    _generator = generator;
+
+    if (generator)
+    {
+        NSUInteger index = generator.imagesCount > 1 ? 1 : 0;
+        CGImageRef fPreviewImage = [generator copyImageAtIndex:index shouldCache:NO];
+        self.previewView.image = fPreviewImage;
+        CFRelease(fPreviewImage);
+    }
+    else
+    {
+        self.previewView.image = nil;
+    }
+}
+
+
 @end