From 6558cb9ebe3eae7a64d427002a1755ee4fcce222 Mon Sep 17 00:00:00 2001
From: ruevs <dpr@ruevs.com>
Date: Fri, 16 Oct 2020 23:35:40 +0300
Subject: [PATCH] Fix crash in solvespace-cli

`window` is a `nullptr` with guinone.cpp - avoid dereferencing it.

Fixes: https://github.com/solvespace/solvespace/issues/567
---
 src/draw.cpp | 13 ++++++++++---
 1 file changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/draw.cpp b/src/draw.cpp
index db2f33e5..1dabd75b 100644
--- a/src/draw.cpp
+++ b/src/draw.cpp
@@ -305,9 +305,16 @@ void GraphicsWindow::GroupSelection() {
 
 Camera GraphicsWindow::GetCamera() const {
     Camera camera = {};
-    window->GetContentSize(&camera.width, &camera.height);
-    camera.pixelRatio = window->GetDevicePixelRatio();
-    camera.gridFit    = (window->GetDevicePixelRatio() == 1);
+    if(window) {
+        window->GetContentSize(&camera.width, &camera.height);
+        camera.pixelRatio = window->GetDevicePixelRatio();
+        camera.gridFit    = (window->GetDevicePixelRatio() == 1);
+    } else {    // solvespace-cli
+        camera.width = 297.0;   // A4? Whatever...
+        camera.height = 210.0;
+        camera.pixelRatio = 1.0;
+        camera.gridFit    = camera.pixelRatio == 1.0;
+    }
     camera.offset     = offset;
     camera.projUp     = projUp;
     camera.projRight  = projRight;