Debug console stops autoscrolling when a line wraps around

[banga]

Issue Type: Bug

• Make sure the debug console is narrow enough that at least one line will wrap around
• Scroll all the way to the bottom of the debug console so it will autoscroll as more output is generated
• Run any task that produces output with long lines

Notice that when a line that wraps around is printed, autoscrolling stops working and you have to manually scroll to the end to resume it.

VS Code version: Code 1.36.1 (2213894, 2019-07-08T22:56:38.504Z)
OS version: Darwin x64 18.6.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-6920HQ CPU @ 2.90GHz (8 x 2900)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	6, 5, 5
Memory (System)	16.00GB (0.12GB free)
Process Argv
Screen Reader	no
VM	0%

[sguillia]

I can reproduce this, but only if the debug console panel is moved right, not bottom.

[JoshVarty]

I am also running into this.

Possibly related: #70331

• VSCode Version: 1.37.1
• OS Version: Ubuntu 18.04.3 LTS

Steps to Reproduce:

1. Create a new Python project (requires numpy)
2. Add the code:

import numpy as np
x = 5

3. Place a breakpoint on x=5
4. Run the code, allow the breakpoint to be hit.
5. In the debug console type: np.ones((720,1))
6. In the debug console type: 4+4
7. Observe that the scroll returns to the top of the debug console

Does this issue occur when all extensions are disabled?: Yes

[isidorn]

@JoshVarty nice steps. Thanks. I plan to look next week into this.

[isidorn]

I can not reproduce this with node, even though I have multiple lines that wrap.
Unfortunetly I do not have pyhton setup on my machine to follow the exact python steps (after doing pip install numpy I get an exception when debugging the program No module named 'numpy')

I believe the issue is here

I am open for a PR which fixes this.
The solution would be to better aproximate the height based on the value length.
Due to this bad approximation the autoscrolling breaks.