Refactor GuiProgressbar for improved accuracy #2573
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GuiProgressbar can fail to show pixels near the min and max values, such as for 98-100% power or coolant on the Power Management screen or the final jump drive charge points in the jump drive controls. This appears to be caused by the GuiProgressbar being filled by a PNG with a transparent border of pixels, which become the only pixels rendered at these extremes, particularly on high-resolution displays. - Remove transparent pixels from edges of the default progress bar fill PNG that caused inaccuracies for values near min and max. Screens that implement GuiProgressbar should manage its width or height using size or margin attributes if necessary. - Conditionally reduce the default width of the fill rect when using a background. This is set to an arbitrary value that approximates the proportions used in existing behavior, but results in a tighter and more accurate fit on high-resolution displays. - Simplify min/max logic using clamps.
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GuiProgressbar can fail to show pixels near the min and max values, such as for 98-100% power or coolant on the Power Management screen or the final jump drive charge points in the jump drive controls.
This appears to be caused by the GuiProgressbar being filled by a PNG with a transparent border of pixels, which become the only pixels rendered at these extremes, particularly on high-resolution displays.
This change retains the fill PNG rather than replacing it with a fill rect so that the bar fill image can still be replaced by mods or themes.
Before
Note how the jump, load, and unload bars appear to be full or empty but aren't.
After
Bars now reach their full extents, and values within 2-3% of empty or full are still visible.
Power Management screen sliders now overflow; the screen has numerous other layout issues (text overlapping controls, bar values not matching slider values) that can also be addressed separately.