The button pressed since the last setActive(true); latched (reset by setActive(false)).

Count magenta-ish pixels: red AND blue both clearly above green. Robust to any residual tonemap/AA tint (the lines bypass the tonemap, but edge pixels

Serialize a raw rgb8 sdk::Image (pj_image_v1) carrying `frame_id` so the CanonicalImageCodec source path can rectify it against a matching CameraInfo.

Distortion-free calibration whose only effect is to lift the source to a `out_w x out_h` native resolution — lets a rectification test assert the outp

Return attached plot

! The plot area depends on the size of the canvas and the zoom parameters. \return Bounding rect of the plot area */

Translation-only orthographic XY projection. Rotation and Z are intentionally dropped to keep SceneEntities usable as lightweight pixel-space overlays

Fully iterate a full-range read of `topic`; returns rows seen (0 if missing).

Collects (timestamp, first-column double) pairs over the full time range.

Registers a topic in the store and pushes one owned payload so the descriptor is non-empty (topic_name set) and entryCount() > 0.

! Return the extent, that is needed for the scrollbars \param orientation Orientation \return The width of the vertical scrollbar for Qt:

Seed "scene -> child" (identity) into a buffer.

! \brief Disable autoscaling and specify a fixed scale for a selected axis. In updateAxes() the scale engine calculates a scale division from t

! Set the frame, that is used for the Box style. \param frameStyle Frame style \sa frameStyle(), setLineWidth(), setStyle() */

! Change the mouse button and modifiers used for panning The defaults are Qt::LeftButton and Qt::NoModifier */

Small private widget for one tab in the strip. Holds a name label plus a close button. Double-clicking flips the label out for an in-place QLineEdit;

! Change a paint attribute \param attribute Paint attribute \param on On/Off \note Used by setFont(), setColor(), setBorderPen(

! Assign a pen for all axes and grid lines \param pen Pen \sa setMajorGridPen(), setMinorGridPen(), setAxisPen() */

! Build and assign a pen In Qt5 the default pen width is 1.0 ( 0.0 in Qt4 ) what makes it non cosmetic ( see QPen::isCosmetic() ). This meth

Sets the z-coordinate of the point to the value specified by z.

FALLBACK ONLY. Compact input height for when NO stylesheet is active (e.g. a unit test that constructs widgets without the app QSS). In the running ap

Return a size hint.

Uniform sizing for the inline eye/add/trash buttons so the trailing column is pixel-aligned regardless of the platform style's default tool-button met

Tight budgets so the tests abort fast.

Return the current state

! Test a paint attribute \param attribute Paint attribute \return true, if attribute is enabled \sa setPaintAttribute() */

! Test a render hint \param hint Render hint \return true/false \sa setRenderHint(), RenderHint */

Display-relative seconds -> absolute Timepoint (inverse of toDisplaySeconds). Rounds to the nearest nanosecond (not truncate) so the round-trip is sta

! \brief Convert the graphic to a QImage All pixels of the image get initialized by 0 ( transparent ) before the graphic is scaled and rende