From f56c5dd389df2cf0bd0ca111ae44bf58ece8a5e2 Mon Sep 17 00:00:00 2001
From: Sander Schobers <sander@schobers.eu>
Date: Sun, 1 May 2022 12:05:17 +0000
Subject: [PATCH] Added support for getting & setting location of Renderer.

---
 allg5ui/renderer.go | 9 +++++++++
 sdlui/renderer.go   | 9 +++++++++
 ui/renderer.go      | 2 ++
 3 files changed, 20 insertions(+)

diff --git a/allg5ui/renderer.go b/allg5ui/renderer.go
index 5a31023..e57f974 100644
--- a/allg5ui/renderer.go
+++ b/allg5ui/renderer.go
@@ -287,6 +287,15 @@ func (r *Renderer) Line(p, q geom.PointF32, color color.Color, thickness float32
 	allg5.DrawLine(p.X, p.Y, q.X, q.Y, newColor(color), thickness)
 }
 
+func (r *Renderer) Location() geom.Point {
+	x, y := r.disp.Position()
+	return geom.Pt(x, y)
+}
+
+func (r *Renderer) Move(to geom.Point) {
+	r.disp.SetPosition(to.X, to.Y)
+}
+
 func (r *Renderer) mustGetBitmap(t ui.Texture) *allg5.Bitmap {
 	texture, ok := t.(*texture)
 	if !ok {
diff --git a/sdlui/renderer.go b/sdlui/renderer.go
index ce72923..89008b1 100644
--- a/sdlui/renderer.go
+++ b/sdlui/renderer.go
@@ -374,6 +374,15 @@ func (r *Renderer) Line(p, q geom.PointF32, color color.Color, thickness float32
 	r.renderer.DrawLineF(p.X, p.Y, q.X, q.Y)
 }
 
+func (r *Renderer) Location() geom.Point {
+	x, y := r.window.GetPosition()
+	return geom.Pt(int(x), int(y))
+}
+
+func (r *Renderer) Move(to geom.Point) {
+	r.window.SetPosition(int32(to.X), int32(to.Y))
+}
+
 func (r *Renderer) Rectangle(rect geom.RectangleF32, c color.Color, thickness float32) {
 	r.SetDrawColorGo(c)
 	if rect.Dx() == 0 { // SDL doesn't draw a 1 px wide line when Dx() == 0 && thickness == 1
diff --git a/ui/renderer.go b/ui/renderer.go
index fb69f67..32c2aa2 100644
--- a/ui/renderer.go
+++ b/ui/renderer.go
@@ -31,6 +31,8 @@ type Renderer interface {
 	DrawTexturePointOptions(t Texture, p geom.PointF32, opts DrawOptions)
 	FillRectangle(r geom.RectangleF32, c color.Color)
 	Line(p, q geom.PointF32, color color.Color, thickness float32)
+	Location() geom.Point
+	Move(geom.Point)
 	Rectangle(r geom.RectangleF32, c color.Color, thickness float32)
 	RenderTo(Texture)
 	RenderToDisplay()