From 1e4e4ead7e093a48205353047ab18e8bd2a60574 Mon Sep 17 00:00:00 2001
From: "Adam D. Ruppe" <destructionator@gmail.com>
Date: Mon, 25 Jan 2021 21:11:48 -0500
Subject: [PATCH] convenience class
---
nanovega.d | 68 ++++++++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 68 insertions(+)
diff --git a/nanovega.d b/nanovega.d
index 28e8b9d..51a00c6 100644
--- a/nanovega.d
+++ b/nanovega.d
@@ -12165,6 +12165,74 @@ version(nanovg_bindbc_opengl_bindings) {
import bindbc.opengl;
} else version(nanovg_builtin_opengl_bindings) {
import arsd.simpledisplay;
+
+ /++
+ A SimpleWindow subclass that encapsulates some nanovega defaults. You just set a `redrawNVGScene` delegate and, optionally, your nromal event handlers for simpledisplay, and the rest is set up for you.
+
+ History:
+ Added January 22, 2021 (version 9.2 release)
+ +/
+ public class NVGWindow : SimpleWindow {
+ NVGContext nvg;
+
+ /++
+
+ +/
+ this(int width, int height, string title) {
+ setOpenGLContextVersion(3, 0);
+ super(width, height, title, OpenGlOptions.yes, Resizability.allowResizing);
+
+ this.onClosing = delegate() {
+ nvg.kill();
+ };
+
+ this.visibleForTheFirstTime = delegate() {
+ nvg = nvgCreateContext();
+ if(nvg is null) throw new Exception("cannot initialize NanoVega");
+ };
+
+ this.redrawOpenGlScene = delegate() {
+ if(redrawNVGScene is null)
+ return;
+ glViewport(0, 0, this.width, this.height);
+ if(clearOnEachFrame) {
+ glClearColor(0, 0, 0, 0);
+ glClear(glNVGClearFlags);
+ }
+
+ nvg.beginFrame(this.width, this.height);
+ scope(exit) nvg.endFrame();
+
+ redrawNVGScene(nvg);
+ };
+
+ this.setEventHandlers(
+ &redrawOpenGlSceneNow,
+ (KeyEvent ke) {
+ if(ke.key == Key.Escape || ke.key == Key.Q)
+ this.close();
+ }
+ );
+ }
+
+ /++
+
+ +/
+ bool clearOnEachFrame = true;
+
+ /++
+
+ +/
+ void delegate(NVGContext nvg) redrawNVGScene;
+
+ /++
+
+ +/
+ void redrawNVGSceneNow() {
+ redrawOpenGlSceneNow();
+ }
+ }
+
} else {
import iv.glbinds;
}