First draft of image bounds fetching

Signed-off-by: vade <vade@vade.info>

Author: vade

Sources/objc/include/CxxBox.h

@@ -0,0 +1,12 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright Contributors to the OpenTimelineIO project
+
+#import <Foundation/Foundation.h>
+
+typedef struct CxxBox2D {
+    double minX;
+    double minY;
+    double maxX;
+    double maxY;
+} CxxBox2D;
+

Sources/objc/include/opentimelineio.h

@@ -10,6 +10,7 @@
 #import "CxxAnyDictionaryIterator.h"
 #import "CxxAnyVectorMutationStamp.h"
 #import "CxxVectorProperty.h"
+#import "CxxBox.h"
 #import "errorStruct.h"
 
 #if defined(__cplusplus)
@@ -183,7 +184,11 @@ bool media_reference_is_missing_reference(CxxRetainer* self);
 bool media_reference_available_range(CxxRetainer* self, CxxTimeRange*);
 void media_reference_set_available_range(CxxRetainer* self, CxxTimeRange);
 void media_reference_clear_available_range(CxxRetainer* self);
-    
+
+bool media_reference_available_image_bounds(CxxRetainer* self, CxxBox2D* );
+void media_reference_set_available_image_bounds(CxxRetainer* self, CxxBox2D image_bounds);
+void media_reference_clear_available_image_bounds(CxxRetainer* self);
+
 // MARK: - Timeline
 void* timeline_get_tracks(CxxRetainer* self);    
 void timeline_set_tracks(CxxRetainer* self, CxxRetainer* stack);

Sources/objc/opentimelineio.mm

@@ -37,6 +37,7 @@
 #import "opentimelineio.h"
 #import "opentime.h"
 #import "errorStruct.h"
+#import "CxxBox.h"
 #import "CxxVectorProperty.h"
 
 namespace otio = opentimelineio::OPENTIMELINEIO_VERSION;
@@ -631,6 +632,39 @@ void media_reference_clear_available_range(CxxRetainer* self) {
     SO_cast<otio::MediaReference>(self)->set_available_range(std::nullopt);
 }
 
+bool media_reference_available_image_bounds(CxxRetainer* self, CxxBox2D* ib) {
+    std::optional<IMATH_NAMESPACE::Box2d> iBox2D = SO_cast<otio::MediaReference>(self)->available_image_bounds();
+    
+    if (iBox2D && ib) {
+        ib->minX = iBox2D->min.x;
+        ib->minY = iBox2D->min.y;
+        ib->maxX = iBox2D->max.x;
+        ib->maxX = iBox2D->max.y;
+        
+        return true;
+    }
+    
+    ib = NULL;
+    
+    return false;
+}
+
+void media_reference_set_available_image_bounds(CxxRetainer* self, CxxBox2D image_bounds) {
+    std::optional<IMATH_NAMESPACE::Box2d> iBox2D = std::optional<IMATH_NAMESPACE::Box2d>();
+    
+    iBox2D->min.x = image_bounds.minX;
+    iBox2D->min.y = image_bounds.minY;
+    iBox2D->max.x = image_bounds.maxX;
+    iBox2D->max.y = image_bounds.maxX;
+    
+    SO_cast<otio::MediaReference>(self)->set_available_image_bounds(iBox2D);
+}
+
+void media_reference_clear_available_image_bounds(CxxRetainer* self) {
+    SO_cast<otio::MediaReference>(self)->set_available_image_bounds(std::nullopt);
+}
+
+
 // MARK: - Timeline
 
 void* timeline_get_tracks(CxxRetainer* self) {

Sources/swift/MediaReference.swift

@@ -49,4 +49,21 @@ public class MediaReference : SerializableObjectWithMetadata {
     public var isMissingReference: Bool {
         get { return media_reference_is_missing_reference(self) }
     }
+    
+    public var availableImageBounds: CxxBox2D?
+    {
+        get { var box2D = CxxBox2D()
+            return media_reference_available_image_bounds(self, &box2D) ? box2D : nil
+        }
+        set {
+            if let newValue = newValue {
+                media_reference_set_available_image_bounds(self, newValue)
+            }
+            else
+            {
+                media_reference_clear_available_image_bounds(self)
+            }
+        }
+        
+    }
 }