RectExt extension

Rect transformations in this package pivot on the center unless the method name says otherwise. That's the natural choice for animation / gesture math (the center is the point that stays put during scaling), in contrast to Flutter's layout-flavored topLeft convention on Rect.fromLTRB / Rect.fromLTWH.

on

• Rect

Properties

area → double

Available on Rect, provided by the RectExt extension

no setter

aspectRatio → double

Available on Rect, provided by the RectExt extension

no setter

Methods

baseHeight(double aspectRatio) → double

Available on Rect, provided by the RectExt extension

baseRect(double aspectRatio) → Rect

Available on Rect, provided by the RectExt extension

baseWidth(double aspectRatio) → double

Available on Rect, provided by the RectExt extension

copyWithCenter(Offset offset) → Rect

Available on Rect, provided by the RectExt extension

Same size, new center.

cropBoundaries(Rect boundaries, {double? minAspectRatio, double? maxAspectRatio}) → Rect

Available on Rect, provided by the RectExt extension

Clamps this (a crop rect) to stay inside boundaries, optionally honoring an aspect-ratio range. When a part of the rect spills past an edge, it's pushed back; if the resulting aspect violates minAspectRatio / maxAspectRatio, it's resized on its center to snap back into the allowed range.

fitCoverRect(Rect baseRect, Offset touchGlobalPosition, {double pullFactor = 0.4}) → Rect

Available on Rect, provided by the RectExt extension

Computes the fit-cover end rect for a double-tap on a displayed (at-base) view. Scales the rect from BoxFit.contain to BoxFit.cover (so it fills the display), then pans toward touchGlobalPosition on the overflowing axis (clamped to cover bounds).

getLimitedCenterXInside(Rect container) → double

Available on Rect, provided by the RectExt extension

getLimitedCenterYInside(Rect container) → double

Available on Rect, provided by the RectExt extension

getLimitedRect({required Rect container, required Offset focalPointDelta, required Offset friction}) → Rect

Available on Rect, provided by the RectExt extension

Applies per-axis friction damping when the rect's edges cross the container in the direction of focalPointDelta.

isXFitInside(Rect container) → bool

Available on Rect, provided by the RectExt extension

isYFitInside(Rect container) → bool

Available on Rect, provided by the RectExt extension

moveCorner({required Offset delta, required Corner corner, required Size shortest, required Size? longest, required double? largest, required Rect boundaries, required double? aspectRatio}) → Rect

Available on Rect, provided by the RectExt extension

moveSide({required double delta, required Side side, required Size shortest, required Size? longest, required double? largest, required Rect boundaries, required double? aspectRatio}) → Rect

Available on Rect, provided by the RectExt extension

resize(double width, double height) → Rect

Available on Rect, provided by the RectExt extension

Same center, new size. Aspect may change.

scale(double scale) → Rect

Available on Rect, provided by the RectExt extension

Multiply both dimensions by scale; aspect preserved, center fixed.

scaleToHeight(double height) → Rect

Available on Rect, provided by the RectExt extension

Scale so the new height equals height; aspect preserved, center fixed.

scaleToWidth(double width) → Rect

Available on Rect, provided by the RectExt extension

Scale so the new width equals width; aspect preserved, center fixed.

shiftXToFitInside(Rect container, {double force = 1}) → Rect

Available on Rect, provided by the RectExt extension

force ∈ 0, 1: how much to pull the rect back inside container. 0 = no movement, 1 = fully inside.

shiftYToFitInside(Rect container, {double force = 1}) → Rect

Available on Rect, provided by the RectExt extension

viewportEndRect(Rect baseRect, Rect displayRect, {double? maxScale}) → Rect

Available on Rect, provided by the RectExt extension

Computes the "viewport-correct" end rect for a release-while-displayed. Mirrors the imagineai interactionEndRect: