diff options
| -rw-r--r-- | lib/ui/grid.go | 11 |
1 files changed, 6 insertions, 5 deletions
diff --git a/lib/ui/grid.go b/lib/ui/grid.go index 3ac43a4..3fc7f04 100644 --- a/lib/ui/grid.go +++ b/lib/ui/grid.go @@ -3,6 +3,7 @@ package ui import ( "fmt" "math" + "sync/atomic" ) type Grid struct { @@ -42,7 +43,7 @@ type GridCell struct { RowSpan int ColSpan int Content Drawable - invalid bool + invalid atomic.Value // bool } func NewGrid() *Grid { @@ -85,7 +86,8 @@ func (grid *Grid) Draw(ctx *Context) { grid.reflow(ctx) } for _, cell := range grid.cells { - if !cell.invalid && !invalid { + cellInvalid := cell.invalid.Load().(bool) + if !cellInvalid && !invalid { continue } rows := grid.rowLayout[cell.Row : cell.Row+cell.RowSpan] @@ -156,11 +158,10 @@ func (grid *Grid) AddChild(content Drawable) *GridCell { RowSpan: 1, ColSpan: 1, Content: content, - invalid: true, } grid.cells = append(grid.cells, cell) cell.Content.OnInvalidate(grid.cellInvalidated) - cell.invalid = true + cell.invalid.Store(true) grid.invalidateLayout() return cell } @@ -186,6 +187,6 @@ func (grid *Grid) cellInvalidated(drawable Drawable) { if cell == nil { panic(fmt.Errorf("Attempted to invalidate unknown cell")) } - cell.invalid = true + cell.invalid.Store(true) grid.DoInvalidate(grid) } |