Pinta latest development pinta-1.5-preview-20130512 on Windows XP:
1. Open Pinta and leave new image opened.
2. Create a print-screen and paste it into new image with CTRL+ALT+V.
3. Rectangle Select and mark some are on canvas.
4. Copy market area in clipboard by CTRL+C.
5. In Images pad click on first image (from step 1).
6. Paste the image with CTRL+V.
7. Move Selected Pixels is automatically selected, click on pasted image selection and move the mouse to move the pasted image.
8. Click Crop to selection from toolbar. Crash appears with the following error:
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System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.DivideByZeroException: Attempted to divide by zero.
at Pinta.Core.DocumentWorkspace.set_Scale(Double value)
at Pinta.Core.ImageActions.CropImageToRectangle(Document doc, Rectangle rect)
at Pinta.Core.ImageActions.HandlePintaCoreActionsImageCropToSelectionActivated(Object sender, EventArgs e)
--- End of inner exception stack trace ---
at System.RuntimeMethodHandle._InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, SignatureStruct& sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.RuntimeMethodHandle.InvokeMethodFast(IRuntimeMethodInfo method, Object target, Object[] arguments, Signature sig, MethodAttributes methodAttributes, RuntimeType typeOwner)
at System.Reflection.RuntimeMethodInfo.Invoke(Object obj, BindingFlags invokeAttr, Binder binder, Object[] parameters, CultureInfo culture, Boolean skipVisibilityChecks)
at System.Delegate.DynamicInvokeImpl(Object[] args)
at GLib.Signal.ClosureInvokedCB(Object o, ClosureInvokedArgs args)
at GLib.SignalClosure.Invoke(ClosureInvokedArgs args)
at GLib.SignalClosure.MarshalCallback(IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data)
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Confirmed. It also happens if e.g. you take a screenshot, paste into a new image, and then crop to selection.