From 42d573372ef07915585d386281b2fe463ca732af Mon Sep 17 00:00:00 2001
From: faiface <faiface@ksp.sk>
Date: Sat, 3 Dec 2016 16:33:56 +0100
Subject: [PATCH] add Deleter and DrawDeleter interfaces
---
graphics.go | 20 +++++++++++++++++++-
1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/graphics.go b/graphics.go
index 3807964..c328976 100644
--- a/graphics.go
+++ b/graphics.go
@@ -10,7 +10,7 @@ import (
// Drawer is anything that can be drawn. It's by no means a drawer inside your table.
//
-// Drawer consists of a single method: Draw. Draw methods takes any number of Transform arguments. It applies these
+// Drawer consists of a single methods: Draw. Draw methods takes any number of Transform arguments. It applies these
// transforms in the reverse order and finally draws something transformed by these transforms.
//
// Example:
@@ -23,6 +23,19 @@ type Drawer interface {
Draw(t ...Transform)
}
+// Deleter is anything that can be deleted. All graphics objects that have some associated video memory
+// are deleters. It is necessary to call Delete when you're done with an object, otherwise you're going
+// to have video memory leaks.
+type Deleter interface {
+ Delete()
+}
+
+// DrawDeleter combines Drawer and Deleter interfaces.
+type DrawDeleter interface {
+ Drawer
+ Deleter
+}
+
// PolygonColor is a polygon shape filled with a single color.
type PolygonColor struct {
parent pixelgl.Doer
@@ -108,3 +121,8 @@ func (pc *PolygonColor) Draw(t ...Transform) {
pc.va.Draw()
}
+
+// Delete destroys a polygon shape and releases it's video memory. Do not use this shape after calling Delete.
+func (pc *PolygonColor) Delete() {
+ pc.va.Delete()
+}
--
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