96 lines
1.6 KiB
Go
96 lines
1.6 KiB
Go
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package layouts
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import (
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"image"
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"math"
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"git.milar.in/milarin/gui"
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)
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func min(x, y int) int {
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if x < y {
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return x
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}
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return y
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}
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func max(x, y int) int {
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if x > y {
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return x
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}
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return y
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}
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func limit(v, minv, maxv int) int {
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return min(max(v, minv), maxv)
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}
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func iff[T any](condition bool, trueValue, falseValue T) T {
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if condition {
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return trueValue
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}
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return falseValue
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}
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type LayoutResult struct {
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Sizes map[gui.View]gui.Size
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Sum gui.Size
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Min gui.Size
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Max gui.Size
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Pref gui.Size
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Count int
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VerticalNegativeCount int
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HorizontalNegativeCount int
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}
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func CalculateLayoutResult(ctx gui.AppContext, views []gui.View) *LayoutResult {
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result := &LayoutResult{
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Sizes: map[gui.View]gui.Size{},
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Sum: gui.Size{Width: 0, Height: 0},
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Min: gui.Size{Width: math.MaxInt, Height: math.MaxInt},
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Max: gui.Size{Width: -1, Height: -1},
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Count: 0,
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VerticalNegativeCount: 0,
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HorizontalNegativeCount: 0,
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}
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for _, view := range views {
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if view == nil {
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continue
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}
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result.Count++
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width, height := view.Layout(ctx)
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result.Sizes[view] = gui.Size{Width: width, Height: height}
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if width > 0 {
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result.Sum.Width += width
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result.Min.Width = min(result.Min.Width, width)
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result.Max.Width = max(result.Max.Width, width)
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} else if width < 0 {
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result.HorizontalNegativeCount++
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}
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if height > 0 {
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result.Sum.Height += height
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result.Min.Height = min(result.Min.Height, height)
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result.Max.Height = max(result.Max.Height, height)
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} else if height < 0 {
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result.VerticalNegativeCount++
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}
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}
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return result
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}
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func rect(x, y, w, h int) image.Rectangle {
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return image.Rect(x, y, x+w, y+h)
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}
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