This repository was archived by the owner on Jan 23, 2025. It is now read-only.
This repository was archived by the owner on Jan 23, 2025. It is now read-only.
DKImageShape - Drag and Drop - CGContextSetCTM: invalid context 0x0 #45
Description
Machine: mac 10.15.3
Xcode: 11.3.1
Summary: Anyone else seeing issues with DnD for images in DrawKit, post catalina/xcode11?
I started seeing this bug crop up recently with drag-n-drop operations, specifically once I a place an image on a DKDrawingView and start dragging it around.
Using default DrawKit primitives (box, line, etc.) does not produce this issue.
I have to set the environment variable "CG_CONTEXT_SHOW_BACKTRACE" to produce the stack trace below. Afaict, everything still seems to work properly.
It happens regardless if it's in a DKShapeGroup.
Image is loaded as a literal from an asset catalog, as a universal PDF.
Stacktrace:
2020-02-17 09:56:15.559928-0700 MyApp[49217:5498717] [com.myapp.myapp] CGContextSetCTM: invalid context 0x0. Backtrace:
<-[NSImageRep drawInRect:]+505>
<-[NSImageRep CGImageForProposedRect:context:hints:]+325>
<__74-[NSImageRep drawInRect:fromRect:operation:fraction:respectFlipped:hints:]_block_invoke+910>
<-[NSImageRep drawInRect:fromRect:operation:fraction:respectFlipped:hints:]+946>
<__71-[NSImage drawInRect:fromRect:operation:fraction:respectFlipped:hints:]_block_invoke.1343+693>
<-[NSImage _usingBestRepresentationForRect:context:hints:body:]+145>
<-[NSImage drawInRect:fromRect:operation:fraction:respectFlipped:hints:]+1343>
<-[DKImageShape drawImage]+579>
<-[DKImageShape drawContent]+192>
<-[DKDrawableObject drawContentWithSelectedState:]+189>
<-[DKShapeGroup drawGroupContent]+400>
<-[DKShapeGroup drawContent]+118>
<-[DKDrawableObject drawContentInRect:fromRect:withStyle:]+657>
<-[DKDrawableObject rectHitsPath:]+636>
<-[DKDrawableObject pointHitsPath:]+156>
<-[DKDrawableShape hitSelectedPart:forSnapDetection:]+555>
<-[DKObjectOwnerLayer snapPoint:toAnyObjectExcept:snapTolerance:]+344>
<-[DKObjectOwnerLayer snappedMousePoint:forObject:withControlFlag:]+148>
<-[DKDrawableObject snappedMousePoint:withControlFlag:]+155>
<-[DKDrawablePath lineCreateLoop:]+818>
<-[DKDrawablePath mouseDownAtPoint:inPart:event:]+380>
<-[DKObjectCreationTool mouseDownAtPoint:targetObject:layer:event:delegate:]+690>
<-[DKToolController mouseDown:]+633>
<-[DKDrawingView mouseDown:]+112>
<$s13MyApp17CanvasDrawingViewC9mouseDown4withySo7NSEventC_tF+64>
<$s13MyApp17CanvasDrawingViewC9mouseDown4withySo7NSEventC_tFTo+47>
<-[NSWindow(NSEventRouting) _handleMouseDownEvent:isDelayedEvent:]+4907>
<-[NSWindow(NSEventRouting) _reallySendEvent:isDelayedEvent:]+2612>
<-[NSWindow(NSEventRouting) sendEvent:]+349>
<-[NSApplication(NSEvent) sendEvent:]+352>
<-[NSApplication run]+707>
<NSApplicationMain+777>