cursorwindowslider.h File Reference

Issue 1 — single-thumb animation scrubber with a look-back window band. More...

#include <QWidget>

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Classes
class	openswmmvis::ui::CursorWindowSlider

Namespaces
namespace	openswmmvis
namespace	openswmmvis::ui

Detailed Description

Issue 1 — single-thumb animation scrubber with a look-back window band.

Author

Caleb Buahin caleb.nosp@m..bua.nosp@m.hin@g.nosp@m.mail.nosp@m..com

Date

2026

License\n GPL-3.0-or-later

Replaces the two-thumb RangeSliderWidget on the animation toolbar. The scrubber has ONE draggable thumb (the current time / cursor); the look-back window is a read-only span set programmatically (from the "Window:" spin box) and painted as a highlighted band ENDING at the cursor — "the range rendered around the slider". Dragging the thumb (or clicking the track) moves only the cursor and emits cursorChanged(); it never mutates the window, so there is no two-handle feedback round-trip — the source of the old lag.

Values are normalised to [0..1]; the host (the SWMMVis animation toolbar) maps the cursor to a QDateTime and the window-norm to milliseconds.

NB: the cursor accessor/mutator are named cursorNorm()/setCursorNorm() — NOT cursor()/setCursor() — to avoid hiding QWidget::setCursor(const QCursor&).