AlfiskoSkin does not correctly update sliders' background

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Issue #1169 new
Nguyen Ngoc Huy created an issue

Operating System: Windows 10 (64-bit) / Linux Mint 19.1 (64-bit)

OS version/build: Kernel 4.15.0-47-generic (Linux)

GPU: GeForce GTX 1050 Ti/PCIe/SSE2

GPU drivers: 398.36 (Windows), 390.116 (Linux)

The Alfisko skin does not always update sliders' background (the little bar behind the knob):

Dragging another slider forces the background of the previous slider to be updated correctly, but then the dragged one would also produce the artifacts.

The issue retains on both tested platforms (Windows & Linux), with OpenGL rendering backend & SDL2.

It seems like Alfisko is the only skin having "dynamic" slider backgrounds which also updates with the knob position, as the other themes with static backgrounds do not exhibit the issue.

Reproducibility: Always

Reproduction steps:

  1. Compile CEGUI with CEGUI_SAMPLES_ENABLED=1

  2. Open the CEGUIWidgetDemo demo.

  3. Select AlfiskoSkin from the skin drop-down, and choose one of the slider variant (HorizontalScrollbar, VerticalScrollbar, HorizontalSlider, VerticalSlider).

  4. Dragging around the slider a few times.

Comments (1)

  1. Manh Nguyen Tien

    Confirmed this error on Ubuntu 18.04, not native anyways (I ran with Wine). This should be a bug.

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