debugui: rename DrawWidget -> RenderOnlyWidget

Author: hajimehoshi

draw.go

@@ -192,7 +192,8 @@ func (c *Context) drawIcon(icon icon, rect image.Rectangle, color color.Color) {
 	}
 }
 
-func (c *Context) DrawWidget(f func(screen *ebiten.Image)) {
+// RenderOnlyWidget adds a widget that only draws the given function without user interaction.
+func (c *Context) RenderOnlyWidget(f func(screen *ebiten.Image)) {
 	_ = c.wrapEventHandlerAndError(func() (EventHandler, error) {
 		_, _ = c.widget(emptyWidgetID, 0, nil, nil, func(bounds image.Rectangle) {
 			c.setClip(c.clipRect())

example/ui.go

@@ -131,7 +131,7 @@ func (g *Game) testWindow(ctx *debugui.Context) {
 				ctx.Slider(&g.bg[2], 0, 255, 1)
 			})
 			ctx.GridCell(func(bounds image.Rectangle) {
-				ctx.DrawWidget(func(screen *ebiten.Image) {
+				ctx.RenderOnlyWidget(func(screen *ebiten.Image) {
 					scale := ctx.Scale()
 					vector.DrawFilledRect(
 						screen,