Class TableColumnLayout

Pure arithmetic for a resizable-column table: each column's initial width honoring a minimum, and how a drag on the handle between two adjacent columns redistributes their combined width. Extracted so an IMGUI wrapper (SerenityTableGui) only has to feed and read floats, and the invariant that no drag can push a neighbor thinner than its minimum, or change the pair's combined width, is assertable without any editor state.

Inheritance
object
TableColumnLayout
Inherited Members
Namespace: Serenity.Shared.Layout
Assembly: Serenity.Shared.dll
Syntax
public static class TableColumnLayout

Methods

ClampDrag(float, float, float, float, float)

Resizes two adjacent columns by delta (the drag distance), taking from one and giving to the other so their combined width never changes, and never pushing either one below its minimum.

Declaration
public static (float LeftWidth, float RightWidth) ClampDrag(float leftWidth, float rightWidth, float delta, float leftMinimum, float rightMinimum)
Parameters
Type Name Description
float leftWidth

The left column's current width.
float rightWidth

The right column's current width.
float delta

How far the handle moved; positive widens the left column.
float leftMinimum

The narrowest the left column may become.
float rightMinimum

The narrowest the right column may become.
Returns
Type Description
(float X, float Y)

Solve(float, IReadOnlyList<ColumnSpec>)

Solves each column's initial width: fixed columns get their requested width (never below their minimum), flex columns share whatever width is left over in proportion to their weight — also never below their minimum, even if that means the columns together run wider than availableWidth.

Declaration
public static float[] Solve(float availableWidth, IReadOnlyList<ColumnSpec> specs)
Parameters
Type Name Description
float availableWidth

The total width the columns are laid out inside.
IReadOnlyList<ColumnSpec> specs

One spec per column, in column order.
Returns
Type Description
float[]