Fixes #48 - allow scrolling the main editor while on top of the minimap

Author: stefanceriu

SCXcodeMinimap/SCXcodeMinimapScrollView.h

@@ -10,4 +10,7 @@
 
 @interface SCXcodeMinimapScrollView : NSScrollView
 
+- (instancetype)initWithFrame:(CGRect)frame
+			 editorScrollView:(NSScrollView *)scrollView;
+
 @end

SCXcodeMinimap/SCXcodeMinimapScrollView.m

@@ -8,11 +8,27 @@
 
 #import "SCXcodeMinimapScrollView.h"
 
+@interface SCXcodeMinimapScrollView ()
+
+@property (nonatomic, strong) NSScrollView *editorScrollView;
+
+@end
+
 @implementation SCXcodeMinimapScrollView
 
+- (instancetype)initWithFrame:(CGRect)frame
+			 editorScrollView:(NSScrollView *)scrollView
+{
+	if(self = [super initWithFrame:frame]) {
+		_editorScrollView = scrollView;
+	}
+	
+	return self;
+}
+
 - (void)scrollWheel:(NSEvent *)theEvent
 {
-	// Disable the scroll wheel on top of the minimap
+	[self.editorScrollView scrollWheel:theEvent];
 }
 
 @end

SCXcodeMinimap/SCXcodeMinimapView.m

@@ -116,7 +116,7 @@ - (instancetype)initWithEditor:(IDESourceCodeEditor *)editor
 		[self setWantsLayer:YES];
 		[self setAutoresizingMask:NSViewMinXMargin | NSViewMinYMargin | NSViewWidthSizable | NSViewHeightSizable];
 
-		self.scrollView = [[SCXcodeMinimapScrollView alloc] initWithFrame:self.bounds];
+		self.scrollView = [[SCXcodeMinimapScrollView alloc] initWithFrame:self.bounds editorScrollView:self.editor.scrollView];
 		[self.scrollView setAutoresizingMask:NSViewWidthSizable | NSViewHeightSizable];
 		[self.scrollView setDrawsBackground:NO];
 		[self.scrollView setMinMagnification:0.0f];