Merge pull request #23513 from komakai:fix_unrecognized_selector

Fix "unrecognized selector" issue in Objective-C/Swift bindings

modules/core/misc/objc/common/Mat.h

@@ -14,6 +14,14 @@
 
 #import <Foundation/Foundation.h>
 
+#ifdef AVAILABLE_IMGCODECS
+#if TARGET_OS_IPHONE
+#import <UIKit/UIKit.h>
+#elif TARGET_OS_MAC
+#import <AppKit/AppKit.h>
+#endif
+#endif
+
 @class Size2i;
 @class Scalar;
 @class Range;
@@ -181,6 +189,37 @@ CV_EXPORTS @interface Mat : NSObject
 - (int)put:(NSArray<NSNumber*>*)indices count:(int)count intBuffer:(const int*)buffer NS_REFINED_FOR_SWIFT;
 - (int)put:(NSArray<NSNumber*>*)indices count:(int)count shortBuffer:(const short*)buffer NS_REFINED_FOR_SWIFT;
 
+#pragma mark - Converters
+
+#ifdef AVAILABLE_IMGCODECS
+
+- (CGImageRef)toCGImage CF_RETURNS_RETAINED;
+- (instancetype)initWithCGImage:(CGImageRef)image;
+- (instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist;
+
+#if TARGET_OS_IPHONE
+
+- (UIImage*)toUIImage;
+- (instancetype)initWithUIImage:(UIImage*)image;
+- (instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist;
+
+#elif TARGET_OS_MAC
+
+- (NSImage*)toNSImage;
+- (instancetype)initWithNSImage:(NSImage*)image;
+- (instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist;
+
+#endif
+
+#endif
+
+#pragma mark - QuickLook
+
+#ifdef AVAILABLE_IMGCODECS
+
+- (id)debugQuickLookObject;
+
+#endif
 
 @end
 

modules/core/misc/objc/common/Mat.mm

@@ -13,6 +13,11 @@
 #import "CvType.h"
 #import "CVObjcUtil.h"
 
+#ifdef AVAILABLE_IMGCODECS
+#import "MatConverters.h"
+#import "MatQuickLook.h"
+#endif
+
 static int idx2Offset(cv::Mat* mat, std::vector<int>& indices) {
     int offset = indices[0];
     for (int dim=1; dim < mat->dims; dim++) {
@@ -932,4 +937,54 @@ template<typename T> int putData(NSArray<NSNumber*>* indices, cv::Mat* mat, int
     return [self cols];
 }
 
+#ifdef AVAILABLE_IMGCODECS
+
+-(CGImageRef)toCGImage {
+    return [MatConverters convertMatToCGImageRef:self];
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image {
+    return [MatConverters convertCGImageRefToMat:image];
+}
+
+-(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist {
+    return [MatConverters convertCGImageRefToMat:image alphaExist:alphaExist];
+}
+
+#if TARGET_OS_IPHONE
+
+-(UIImage*)toUIImage {
+    return [MatConverters converMatToUIImage:self];
+}
+
+-(instancetype)initWithUIImage:(UIImage*)image {
+    return [MatConverters convertUIImageToMat:image];
+}
+
+-(instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist {
+    return [MatConverters convertUIImageToMat:image alphaExist:alphaExist];
+}
+
+#elif TARGET_OS_MAC
+
+-(NSImage*)toNSImage {
+    return [MatConverters converMatToNSImage:self];
+}
+
+-(instancetype)initWithNSImage:(NSImage*)image {
+    return [MatConverters convertNSImageToMat:image];
+}
+
+-(instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist {
+    return [MatConverters convertNSImageToMat:image alphaExist:alphaExist];
+}
+
+#endif
+
+- (id)debugQuickLookObject {
+    return [MatQuickLook matDebugQuickLookObject:self];
+}
+
+#endif
+
 @end

modules/imgcodecs/misc/objc/ios/Mat+Converters.mm

-//
-//  Mat+Converters.mm
-//
-//  Created by Giles Payne on 2020/03/03.
-//
-
-#import "Mat+Converters.h"
-#import <opencv2/imgcodecs/ios.h>
-
-@implementation Mat (Converters)
-
--(CGImageRef)toCGImage {
-    return MatToCGImage(self.nativeRef);
-}
-
--(instancetype)initWithCGImage:(CGImageRef)image {
-    return [self initWithCGImage:image alphaExist:NO];
-}
-
--(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist {
-    self = [self init];
-    if (self) {
-        CGImageToMat(image, self.nativeRef, (bool)alphaExist);
-    }
-    return self;
-}
-
--(UIImage*)toUIImage {
-    return MatToUIImage(self.nativeRef);
-}
-
--(instancetype)initWithUIImage:(UIImage*)image {
-    return [self initWithUIImage:image alphaExist:NO];
-}
-
--(instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist {
-    self = [self init];
-    if (self) {
-        UIImageToMat(image, self.nativeRef, (bool)alphaExist);
-    }
-    return self;
-}
-
-@end

modules/imgcodecs/misc/objc/ios/Mat+Converters.h → modules/imgcodecs/misc/objc/ios/MatConverters.h

 //
-//  Mat+Converters.h
+//  MatConverters.h
 //
 //  Created by Giles Payne on 2020/03/03.
 //
@@ -18,14 +18,14 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-CV_EXPORTS @interface Mat (Converters)
+CV_EXPORTS @interface MatConverters : NSObject
 
--(CGImageRef)toCGImage CF_RETURNS_RETAINED;
--(instancetype)initWithCGImage:(CGImageRef)image;
--(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist;
--(UIImage*)toUIImage;
--(instancetype)initWithUIImage:(UIImage*)image;
--(instancetype)initWithUIImage:(UIImage*)image alphaExist:(BOOL)alphaExist;
++(CGImageRef)convertMatToCGImageRef:(Mat*)mat CF_RETURNS_RETAINED;
++(Mat*)convertCGImageRefToMat:(CGImageRef)image;
++(Mat*)convertCGImageRefToMat:(CGImageRef)image alphaExist:(BOOL)alphaExist;
++(UIImage*)converMatToUIImage:(Mat*)mat;
++(Mat*)convertUIImageToMat:(UIImage*)image;
++(Mat*)convertUIImageToMat:(UIImage*)image alphaExist:(BOOL)alphaExist;
 
 @end
 

modules/imgcodecs/misc/objc/ios/MatConverters.mm

+//
+//  MatConverters.mm
+//
+//  Created by Giles Payne on 2020/03/03.
+//
+
+#import "MatConverters.h"
+#import <opencv2/imgcodecs/ios.h>
+
+@implementation MatConverters
+
++(CGImageRef)convertMatToCGImageRef:(Mat*)mat {
+    return MatToCGImage(mat.nativeRef);
+}
+
++(Mat*)convertCGImageRefToMat:(CGImageRef)image {
+    return [MatConverters convertCGImageRefToMat:image alphaExist:NO];
+}
+
++(Mat*)convertCGImageRefToMat:(CGImageRef)image alphaExist:(BOOL)alphaExist {
+    Mat* mat = [Mat new];
+    CGImageToMat(image, mat.nativeRef, (bool)alphaExist);
+    return mat;
+}
+
++(UIImage*)converMatToUIImage:(Mat*)mat {
+    return MatToUIImage(mat.nativeRef);
+}
+
++(Mat*)convertUIImageToMat:(UIImage*)image {
+    return [MatConverters convertUIImageToMat:image alphaExist:NO];
+}
+
++(Mat*)convertUIImageToMat:(UIImage*)image alphaExist:(BOOL)alphaExist {
+    Mat* mat = [Mat new];
+    UIImageToMat(image, mat.nativeRef, (bool)alphaExist);
+    return mat;
+}
+
+@end

modules/imgcodecs/misc/objc/ios/Mat+QuickLook.h → modules/imgcodecs/misc/objc/ios/MatQuickLook.h

 //
-//  Mat+QuickLook.h
+//  MatQuickLook.h
 //
 //  Created by Giles Payne on 2021/07/18.
 //
@@ -18,9 +18,9 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-CV_EXPORTS @interface Mat (QuickLook)
+CV_EXPORTS @interface MatQuickLook : NSObject
 
-- (id)debugQuickLookObject;
++ (id)matDebugQuickLookObject:(Mat*)mat;
 
 @end
 

modules/imgcodecs/misc/objc/ios/Mat+QuickLook.mm → modules/imgcodecs/misc/objc/ios/MatQuickLook.mm

 //
-//  Mat+QuickLook.mm
+//  MatQuickLook.mm
 //
 //  Created by Giles Payne on 2021/07/18.
 //
 
-#import "Mat+QuickLook.h"
-#import "Mat+Converters.h"
+#import "MatQuickLook.h"
 #import "Rect2i.h"
 #import "Core.h"
 #import "Imgproc.h"
@@ -39,9 +38,9 @@ static UIFont* getSystemFont() {
 
 typedef UIFont* (*FontGetter)();
 
-@implementation Mat (QuickLook)
+@implementation MatQuickLook
 
-- (NSString*)makeLabel:(BOOL)isIntType val:(NSNumber*)num {
++ (NSString*)makeLabel:(BOOL)isIntType val:(NSNumber*)num {
     if (isIntType) {
         return [NSString stringWithFormat:@"%d", num.intValue];
     } else {
@@ -56,31 +55,31 @@ typedef UIFont* (*FontGetter)();
     }
 }
 
-- (void)relativeLine:(UIBezierPath*)path relX:(CGFloat)x relY:(CGFloat)y {
++ (void)relativeLine:(UIBezierPath*)path relX:(CGFloat)x relY:(CGFloat)y {
     CGPoint curr = path.currentPoint;
     [path addLineToPoint:CGPointMake(curr.x + x, curr.y + y)];
 }
 
-- (id)debugQuickLookObject {
-    if ([self dims] == 2 && [self rows] <= 10 && [self cols] <= 10 && [self channels] == 1) {
++ (id)matDebugQuickLookObject:(Mat*)mat {
+    if ([mat dims] == 2 && [mat rows] <= 10 && [mat cols] <= 10 && [mat channels] == 1) {
         FontGetter fontGetters[] = { getCMU, getBodoni72, getAnySerif, getSystemFont };
         UIFont* font = nil;
         for (int fontGetterIndex = 0; font==nil && fontGetterIndex < (sizeof(fontGetters)) / (sizeof(fontGetters[0])); fontGetterIndex++) {
             font = fontGetters[fontGetterIndex]();
         }
-        int elements = [self rows] * [self cols];
+        int elements = [mat rows] * [mat cols];
         NSDictionary<NSAttributedStringKey,id>* textFontAttributes = @{ NSFontAttributeName: font, NSForegroundColorAttributeName: UIColor.blackColor };
         NSMutableArray<NSNumber*>* rawData = [NSMutableArray new];
         for (int dataIndex = 0; dataIndex < elements; dataIndex++) {
             [rawData addObject:[NSNumber numberWithDouble:0]];
         }
-        [self get:0 col: 0 data: rawData];
-        BOOL isIntType = [self depth] <= CV_32S;
+        [mat get:0 col: 0 data: rawData];
+        BOOL isIntType = [mat depth] <= CV_32S;
         NSMutableArray<NSString*>* labels = [NSMutableArray new];
         NSMutableDictionary<NSString*, NSValue*>* boundingRects = [NSMutableDictionary dictionaryWithCapacity:elements];
         int maxWidth = 0, maxHeight = 0;
         for (NSNumber* number in rawData) {
-            NSString* label = [self makeLabel:isIntType val:number];
+            NSString* label = [MatQuickLook makeLabel:isIntType val:number];
             [labels addObject:label];
             CGRect boundingRect = [label boundingRectWithSize:CGSizeMake(CGFLOAT_MAX, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:textFontAttributes context:nil];
             if (boundingRect.size.width > maxWidth) {
@@ -97,18 +96,18 @@ typedef UIFont* (*FontGetter)();
         int borderGap = 8;
         int lineThickness = 3;
         int lipWidth = 6;
-        int imageWidth = 2 * (borderGap + lipWidth) + maxWidth * [self cols] + colGap * ([self cols] - 1);
-        int imageHeight = 2 * (borderGap + lipWidth) + maxHeight * [self rows] + rowGap * ([self rows] - 1);
+        int imageWidth = 2 * (borderGap + lipWidth) + maxWidth * [mat cols] + colGap * ([mat cols] - 1);
+        int imageHeight = 2 * (borderGap + lipWidth) + maxHeight * [mat rows] + rowGap * ([mat rows] - 1);
 
         UIBezierPath* leftBracket = [UIBezierPath new];
         [leftBracket moveToPoint:CGPointMake(borderGap, borderGap)];
-        [self relativeLine:leftBracket relX:0 relY:imageHeight - 2 * borderGap];
-        [self relativeLine:leftBracket relX:lineThickness + lipWidth relY:0];
-        [self relativeLine:leftBracket relX:0 relY:-lineThickness];
-        [self relativeLine:leftBracket relX:-lipWidth relY:0];
-        [self relativeLine:leftBracket relX:0 relY:-(imageHeight - 2 * (borderGap + lineThickness))];
-        [self relativeLine:leftBracket relX:lipWidth relY:0];
-        [self relativeLine:leftBracket relX:0 relY:-lineThickness];
+        [MatQuickLook relativeLine:leftBracket relX:0 relY:imageHeight - 2 * borderGap];
+        [MatQuickLook relativeLine:leftBracket relX:lineThickness + lipWidth relY:0];
+        [MatQuickLook relativeLine:leftBracket relX:0 relY:-lineThickness];
+        [MatQuickLook relativeLine:leftBracket relX:-lipWidth relY:0];
+        [MatQuickLook relativeLine:leftBracket relX:0 relY:-(imageHeight - 2 * (borderGap + lineThickness))];
+        [MatQuickLook relativeLine:leftBracket relX:lipWidth relY:0];
+        [MatQuickLook relativeLine:leftBracket relX:0 relY:-lineThickness];
         [leftBracket closePath];
         CGAffineTransform reflect = CGAffineTransformConcat(CGAffineTransformMakeTranslation(-imageWidth, 0), CGAffineTransformMakeScale(-1, 1));
         UIBezierPath* rightBracket = [leftBracket copy];
@@ -124,8 +123,8 @@ typedef UIFont* (*FontGetter)();
         [labels enumerateObjectsUsingBlock:^(id label, NSUInteger index, BOOL *stop)
         {
             CGRect boundingRect = boundingRects[label].CGRectValue;
-            int row = (int)index / [self cols];
-            int col = (int)index % [self cols];
+            int row = (int)index / [mat cols];
+            int col = (int)index % [mat cols];
             int x = borderGap + lipWidth + col * (maxWidth + colGap) + (maxWidth - boundingRect.size.width) / 2;
             int y = borderGap + lipWidth + row * (maxHeight + rowGap) + (maxHeight - boundingRect.size.height) / 2;
             CGRect textRect = CGRectMake(x, y, boundingRect.size.width, boundingRect.size.height);
@@ -134,26 +133,26 @@ typedef UIFont* (*FontGetter)();
         UIImage* image = UIGraphicsGetImageFromCurrentImageContext();
         UIGraphicsEndImageContext();
         return image;
-    } else if (([self dims] == 2) && ([self type] == CV_8U || [self type] == CV_8UC3 || [self type] == CV_8UC4)) {
-        return [self toUIImage];
-    } else if ([self dims] == 2 && [self channels] == 1) {
+    } else if (([mat dims] == 2) && ([mat type] == CV_8U || [mat type] == CV_8UC3 || [mat type] == CV_8UC4)) {
+        return [mat toUIImage];
+    } else if ([mat dims] == 2 && [mat channels] == 1) {
         Mat* normalized = [Mat new];
-        [Core normalize:self dst:normalized alpha:0 beta:255 norm_type:NORM_MINMAX dtype:CV_8U];
-        Mat* normalizedKey = [[Mat alloc] initWithRows:[self rows] + 10 cols:[self cols] type:CV_8U];
+        [Core normalize:mat dst:normalized alpha:0 beta:255 norm_type:NORM_MINMAX dtype:CV_8U];
+        Mat* normalizedKey = [[Mat alloc] initWithRows:[mat rows] + 10 cols:[mat cols] type:CV_8U];
         std::vector<char> key;
-        for (int index = 0; index < [self cols]; index++) {
-            key.push_back((char)(index * 256 / [self cols]));
+        for (int index = 0; index < [mat cols]; index++) {
+            key.push_back((char)(index * 256 / [mat cols]));
         }
         for (int index = 0; index < 10; index++) {
-            [normalizedKey put:@[[NSNumber numberWithInt:index], [NSNumber numberWithInt:0]] count:[self cols] byteBuffer:key.data()];
+            [normalizedKey put:@[[NSNumber numberWithInt:index], [NSNumber numberWithInt:0]] count:[mat cols] byteBuffer:key.data()];
         }
-        [normalized copyTo:[normalizedKey submatRoi:[[Rect2i alloc] initWithX:0 y:10 width:[self cols] height:[self rows]]]];
+        [normalized copyTo:[normalizedKey submatRoi:[[Rect2i alloc] initWithX:0 y:10 width:[mat cols] height:[mat rows]]]];
         Mat* colorMap = [Mat new];
         [Imgproc applyColorMap:normalizedKey dst:colorMap colormap:COLORMAP_JET];
         [Imgproc cvtColor:colorMap dst:colorMap code:COLOR_BGR2RGB];
         return [colorMap toUIImage];
     }
-    return [self description];
+    return [mat description];
 }
 
 @end

modules/imgcodecs/misc/objc/macosx/Mat+Converters.mm

-//
-//  Mat+Converters.mm
-//
-//  Created by Masaya Tsuruta on 2020/10/08.
-//
-
-#import "Mat+Converters.h"
-#import <opencv2/imgcodecs/macosx.h>
-
-@implementation Mat (Converters)
-
--(CGImageRef)toCGImage {
-    return MatToCGImage(self.nativeRef);
-}
-
--(instancetype)initWithCGImage:(CGImageRef)image {
-    return [self initWithCGImage:image alphaExist:NO];
-}
-
--(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist {
-    self = [self init];
-    if (self) {
-        CGImageToMat(image, self.nativeRef, (bool)alphaExist);
-    }
-    return self;
-}
-
--(NSImage*)toNSImage {
-    return MatToNSImage(self.nativeRef);
-}
-
--(instancetype)initWithNSImage:(NSImage*)image {
-    return [self initWithNSImage:image alphaExist:NO];
-}
-
--(instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist {
-    self = [self init];
-    if (self) {
-        NSImageToMat(image, self.nativeRef, (bool)alphaExist);
-    }
-    return self;
-}
-
-@end

modules/imgcodecs/misc/objc/macosx/Mat+Converters.h → modules/imgcodecs/misc/objc/macosx/MatConverters.h

@@ -18,14 +18,14 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-CV_EXPORTS @interface Mat (Converters)
-
--(CGImageRef)toCGImage CF_RETURNS_RETAINED;
--(instancetype)initWithCGImage:(CGImageRef)image;
--(instancetype)initWithCGImage:(CGImageRef)image alphaExist:(BOOL)alphaExist;
--(NSImage*)toNSImage;
--(instancetype)initWithNSImage:(NSImage*)image;
--(instancetype)initWithNSImage:(NSImage*)image alphaExist:(BOOL)alphaExist;
+CV_EXPORTS @interface MatConverters : NSObject
+
++(CGImageRef)convertMatToCGImageRef:(Mat*)mat CF_RETURNS_RETAINED;
++(Mat*)convertCGImageRefToMat:(CGImageRef)image;
++(Mat*)convertCGImageRefToMat:(CGImageRef)image alphaExist:(BOOL)alphaExist;
++(NSImage*)converMatToNSImage:(Mat*)mat;
++(Mat*)convertNSImageToMat:(NSImage*)image;
++(Mat*)convertNSImageToMat:(NSImage*)image alphaExist:(BOOL)alphaExist;
 
 @end
 

modules/imgcodecs/misc/objc/macosx/MatConverters.mm

+//
+//  MatConverters.mm
+//
+//  Created by Masaya Tsuruta on 2020/10/08.
+//
+
+#import "MatConverters.h"
+#import <opencv2/imgcodecs/macosx.h>
+
+@implementation MatConverters
+
++(CGImageRef)convertMatToCGImageRef:(Mat*)mat {
+    return MatToCGImage(mat.nativeRef);
+}
+
++(Mat*)convertCGImageRefToMat:(CGImageRef)image {
+    return [MatConverters convertCGImageRefToMat:image alphaExist:NO];
+}
+
++(Mat*)convertCGImageRefToMat:(CGImageRef)image alphaExist:(BOOL)alphaExist {
+    Mat* mat = [Mat new];
+    CGImageToMat(image, mat.nativeRef, (bool)alphaExist);
+    return mat;
+}
+
++(NSImage*)converMatToNSImage:(Mat*)mat {
+    return MatToNSImage(mat.nativeRef);
+}
+
++(Mat*)convertNSImageToMat:(NSImage*)image {
+    return [MatConverters convertNSImageToMat:image alphaExist:NO];
+}
+
++(Mat*)convertNSImageToMat:(NSImage*)image alphaExist:(BOOL)alphaExist {
+    Mat* mat = [Mat new];
+    NSImageToMat(image, mat.nativeRef, (bool)alphaExist);
+    return mat;
+}
+
+@end

modules/imgcodecs/misc/objc/macosx/Mat+QuickLook.h → modules/imgcodecs/misc/objc/macosx/MatQuickLook.h

 //
-//  Mat+QuickLook.h
+//  MatQuickLook.h
 //
 //  Created by Giles Payne on 2021/07/18.
 //
@@ -18,9 +18,9 @@
 
 NS_ASSUME_NONNULL_BEGIN
 
-CV_EXPORTS @interface Mat (QuickLook)
+CV_EXPORTS @interface MatQuickLook : NSObject
 
-- (id)debugQuickLookObject;
++ (id)matDebugQuickLookObject:(Mat*)mat;
 
 @end
 

modules/imgcodecs/misc/objc/macosx/Mat+QuickLook.mm → modules/imgcodecs/misc/objc/macosx/MatQuickLook.mm

 //
-//  Mat+QuickLook.mm
+//  MatQuickLook.mm
 //
 //  Created by Giles Payne on 2021/07/18.
 //
 
-#import "Mat+QuickLook.h"
-#import "Mat+Converters.h"
+#import "MatQuickLook.h"
+#import "MatConverters.h"
 #import "Rect2i.h"
 #import "Core.h"
 #import "Imgproc.h"
@@ -39,9 +39,9 @@ static NSFont* getSystemFont() {
 
 typedef NSFont* (*FontGetter)();
 
-@implementation Mat (QuickLook)
+@implementation MatQuickLook
 
-- (NSString*)makeLabel:(BOOL)isIntType val:(NSNumber*)num {
++ (NSString*)makeLabel:(BOOL)isIntType val:(NSNumber*)num {
     if (isIntType) {
         return [NSString stringWithFormat:@"%d", num.intValue];
     } else {
@@ -56,27 +56,27 @@ typedef NSFont* (*FontGetter)();
     }
 }
 
-- (id)debugQuickLookObject {
++ (id)matDebugQuickLookObject:(Mat*)mat {
     // for smallish Mat objects display as a matrix
-    if ([self dims] == 2 && [self rows] <= 10 && [self cols] <= 10 && [self channels] == 1) {
+    if ([mat dims] == 2 && [mat rows] <= 10 && [mat cols] <= 10 && [mat channels] == 1) {
         FontGetter fontGetters[] = { getCMU, getBodoni72, getAnySerif, getSystemFont };
         NSFont* font = nil;
         for (int fontGetterIndex = 0; font==nil && fontGetterIndex < (sizeof(fontGetters)) / (sizeof(fontGetters[0])); fontGetterIndex++) {
             font = fontGetters[fontGetterIndex]();
         }
-        int elements = [self rows] * [self cols];
+        int elements = [mat rows] * [mat cols];
         NSDictionary<NSAttributedStringKey,id>* textFontAttributes = @{ NSFontAttributeName: font, NSForegroundColorAttributeName: NSColor.blackColor };
         NSMutableArray<NSNumber*>* rawData = [NSMutableArray new];
         for (int dataIndex = 0; dataIndex < elements; dataIndex++) {
             [rawData addObject:[NSNumber numberWithDouble:0]];
         }
-        [self get:0 col: 0 data: rawData];
-        BOOL isIntType = [self depth] <= CV_32S;
+        [mat get:0 col: 0 data: rawData];
+        BOOL isIntType = [mat depth] <= CV_32S;
         NSMutableArray<NSString*>* labels = [NSMutableArray new];
         NSMutableDictionary<NSString*, NSValue*>* boundingRects = [NSMutableDictionary dictionaryWithCapacity:elements];
         int maxWidth = 0, maxHeight = 0;
         for (NSNumber* number in rawData) {
-            NSString* label = [self makeLabel:isIntType val:number];
+            NSString* label = [MatQuickLook makeLabel:isIntType val:number];
             [labels addObject:label];
             NSRect boundingRect = [label boundingRectWithSize:NSMakeSize(CGFLOAT_MAX, CGFLOAT_MAX) options:NSStringDrawingUsesLineFragmentOrigin attributes:textFontAttributes];
             if (boundingRect.size.width > maxWidth) {
@@ -93,8 +93,8 @@ typedef NSFont* (*FontGetter)();
         int borderGap = 9;
         int lineThickness = 4;
         int lipWidth = 8;
-        int imageWidth = 2 * (borderGap + lipWidth) + maxWidth * [self cols] + colGap * ([self cols] - 1);
-        int imageHeight = 2 * (borderGap + lipWidth) + maxHeight * [self rows] + rowGap * ([self rows] - 1);
+        int imageWidth = 2 * (borderGap + lipWidth) + maxWidth * [mat cols] + colGap * ([mat cols] - 1);
+        int imageHeight = 2 * (borderGap + lipWidth) + maxHeight * [mat rows] + rowGap * ([mat rows] - 1);
         NSImage* image = [[NSImage alloc] initWithSize:NSMakeSize(imageWidth, imageHeight)];
         NSBezierPath* leftBracket = [NSBezierPath new];
         [leftBracket moveToPoint:NSMakePoint(borderGap, borderGap)];
@@ -121,8 +121,8 @@ typedef NSFont* (*FontGetter)();
         [labels enumerateObjectsUsingBlock:^(id label, NSUInteger index, BOOL *stop)
         {
             NSRect boundingRect = boundingRects[label].rectValue;
-            int row = [self rows] - 1 - ((int)index / [self cols]);
-            int col = (int)index % [self cols];
+            int row = [mat rows] - 1 - ((int)index / [mat cols]);
+            int col = (int)index % [mat cols];
             int x = borderGap + lipWidth + col * (maxWidth + colGap) + (maxWidth - boundingRect.size.width) / 2;
             int y = borderGap + lipWidth + row * (maxHeight + rowGap) + (maxHeight - boundingRect.size.height) / 2;
             NSRect textRect = NSMakeRect(x, y, boundingRect.size.width, boundingRect.size.height);
@@ -130,29 +130,29 @@ typedef NSFont* (*FontGetter)();
         }];
         [image unlockFocus];
         return image;
-    } else if (([self dims] == 2) && ([self type] == CV_8U || [self type] == CV_8UC3 || [self type] == CV_8UC4)) {
+    } else if (([mat dims] == 2) && ([mat type] == CV_8U || [mat type] == CV_8UC3 || [mat type] == CV_8UC4)) {
         // convert to NSImage if the Mats has 2 dimensions and a type and number of channels consistent with it being a image
-        return [self toNSImage];
-    } else if ([self dims] == 2 && [self channels] == 1) {
+        return [mat toNSImage];
+    } else if ([mat dims] == 2 && [mat channels] == 1) {
         // for other Mats with 2 dimensions and one channel - generate heat map
         Mat* normalized = [Mat new];
-        [Core normalize:self dst:normalized alpha:0 beta:255 norm_type:NORM_MINMAX dtype:CV_8U];
-        Mat* normalizedKey = [[Mat alloc] initWithRows:[self rows] + 10 cols:[self cols] type:CV_8U];
+        [Core normalize:mat dst:normalized alpha:0 beta:255 norm_type:NORM_MINMAX dtype:CV_8U];
+        Mat* normalizedKey = [[Mat alloc] initWithRows:[mat rows] + 10 cols:[mat cols] type:CV_8U];
         std::vector<char> key;
-        for (int index = 0; index < [self cols]; index++) {
-            key.push_back((char)(index * 256 / [self cols]));
+        for (int index = 0; index < [mat cols]; index++) {
+            key.push_back((char)(index * 256 / [mat cols]));
         }
         for (int index = 0; index < 10; index++) {
-            [normalizedKey put:@[[NSNumber numberWithInt:index], [NSNumber numberWithInt:0]] count:[self cols] byteBuffer:key.data()];
+            [normalizedKey put:@[[NSNumber numberWithInt:index], [NSNumber numberWithInt:0]] count:[mat cols] byteBuffer:key.data()];
         }
-        [normalized copyTo:[normalizedKey submatRoi:[[Rect2i alloc] initWithX:0 y:10 width:[self cols] height:[self rows]]]];
+        [normalized copyTo:[normalizedKey submatRoi:[[Rect2i alloc] initWithX:0 y:10 width:[mat cols] height:[mat rows]]]];
         Mat* colorMap = [Mat new];
         [Imgproc applyColorMap:normalizedKey dst:colorMap colormap:COLORMAP_JET];
         [Imgproc cvtColor:colorMap dst:colorMap code:COLOR_BGR2RGB];
         return [colorMap toNSImage];
     }
     //everything just return the Mat description
-    return [self description];
+    return [mat description];
 }
 
 @end

modules/objc/generator/gen_objc.py

@@ -1438,6 +1438,8 @@ typedef NS_ENUM(int, {1}) {{
         opencv_header = "#import <Foundation/Foundation.h>\n\n"
         opencv_header += "// ! Project version number\nFOUNDATION_EXPORT double " + framework_name + "VersionNumber;\n\n"
         opencv_header += "// ! Project version string\nFOUNDATION_EXPORT const unsigned char " + framework_name + "VersionString[];\n\n"
+        opencv_header += "\n".join(["#define AVAILABLE_" + m['name'].upper() for m in config['modules']])
+        opencv_header += "\n\n"
         opencv_header += "\n".join(["#import <" + framework_name + "/%s>" % os.path.basename(f) for f in self.header_files])
         self.save(opencv_header_file, opencv_header)
         opencv_modulemap_file = os.path.join(output_objc_path, framework_name + ".modulemap")
@@ -1446,8 +1448,9 @@ typedef NS_ENUM(int, {1}) {{
         opencv_modulemap += "\n".join(["  header \"%s\"" % os.path.basename(f) for f in self.header_files])
         opencv_modulemap += "\n  export *\n  module * {export *}\n}\n"
         self.save(opencv_modulemap_file, opencv_modulemap)
+        available_modules = " ".join(["-DAVAILABLE_" + m['name'].upper() for m in config['modules']])
         cmakelist_template = read_contents(os.path.join(SCRIPT_DIR, 'templates/cmakelists.template'))
-        cmakelist = Template(cmakelist_template).substitute(modules = ";".join(modules), framework = framework_name, objc_target=objc_target)
+        cmakelist = Template(cmakelist_template).substitute(modules = ";".join(modules), framework = framework_name, objc_target=objc_target, module_availability_defines=available_modules)
         self.save(os.path.join(dstdir, "CMakeLists.txt"), cmakelist)
         mkdir_p(os.path.join(output_objc_build_path, "framework_build"))
         mkdir_p(os.path.join(output_objc_build_path, "test_build"))

modules/objc/generator/templates/cmakelists.template

@@ -8,7 +8,7 @@ set(MODULES "$modules")
 set (CMAKE_CXX_STANDARD 11)
 set (CMAKE_CXX_STANDARD_REQUIRED TRUE)
 
-set (OBJC_COMPILE_FLAGS "-fobjc-arc -fobjc-weak -fvisibility=hidden -fPIC -D__OPENCV_BUILD=1")
+set (OBJC_COMPILE_FLAGS "-fobjc-arc -fobjc-weak -fvisibility=hidden -fPIC -D__OPENCV_BUILD=1 $module_availability_defines")
 set (SUPPRESS_WARNINGS_FLAGS "-Wno-incomplete-umbrella")
 set (CMAKE_CXX_FLAGS  "$${CMAKE_CXX_FLAGS} $${OBJC_COMPILE_FLAGS} $${SUPPRESS_WARNINGS_FLAGS}")