StackLayout

StackLayout

#include <StackLayout.hpp>

Inherits: Layout

A layout that stacks children in a single row or column.

StackLayout arranges children either horizontally or vertically. Each child’s size is determined by:

1. Its fixed size (if specified via LayoutSpec)

2. Its ratio weight (if dividing remaining space)

Features:

• Vertical (default) or horizontal arrangement

• Flexible sizing with ratio weights

• Fixed sizing with cells() or pct()

• Spacing between children (gap)

Example Usage:

// Vertical stack (default)
auto vstack = std::make_shared<Container>(
  std::make_shared<StackLayout>(Axis::Vertical, 1) // 1 cell gap
);

// Horizontal stack
auto hstack = std::make_shared<Container>(
  std::make_shared<StackLayout>(Axis::Horizontal, 2)
);

Public Methods

Return	Name	Description
	StackLayout inline explicit	Creates a stack layout.
void	apply	Applies the layout by stacking children along the axis.

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StackLayout

inline explicit

inline explicit StackLayout(Axis axis, int gap)

Creates a stack layout.

Parameters

• axis The direction to stack (default: Vertical)

• gap Spacing between children in cells (default: 0)

---

apply

void apply(std::vector< core::ChildSlot > & children, core::Rect inner)

Applies the layout by stacking children along the axis.

Private Attributes

Return	Name	Description
Axis	axis
int	gap

---

axis

Axis axis

---

gap

int gap

Private Methods

Return	Name	Description
core::Rect	resolveSlot

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resolveSlot

core::Rect resolveSlot(const core::ChildSlot & slot, int x, int y, int w, int h)