From 6318abf42e16e0967576bca5e460ebcc34f1f0bc Mon Sep 17 00:00:00 2001
From: Christophe Geuzaine <cgeuzaine@ulg.ac.be>
Date: Mon, 3 Apr 2017 23:17:02 +0200
Subject: [PATCH] prevent crash if no string to draw
---
Fltk/drawContextFltkCairo.cpp | 1 +
Fltk/drawContextFltkStringTexture.cpp | 1 -
2 files changed, 1 insertion(+), 1 deletion(-)
diff --git a/Fltk/drawContextFltkCairo.cpp b/Fltk/drawContextFltkCairo.cpp
index 84f393e5d5..9e6595c091 100644
--- a/Fltk/drawContextFltkCairo.cpp
+++ b/Fltk/drawContextFltkCairo.cpp
@@ -56,6 +56,7 @@ class drawContextFltkCairo::queueString {
void flush()
{
+ if(_elements.empty()) return;
cairo_surface_t *surface = cairo_image_surface_create(CAIRO_FORMAT_A8, _totalWidth, _maxHeight);
cairo_t *cr = cairo_create(surface);
int pos = 0;
diff --git a/Fltk/drawContextFltkStringTexture.cpp b/Fltk/drawContextFltkStringTexture.cpp
index b855305835..fc4ebb51ca 100644
--- a/Fltk/drawContextFltkStringTexture.cpp
+++ b/Fltk/drawContextFltkStringTexture.cpp
@@ -45,7 +45,6 @@ class drawContextFltkStringTexture::queueString {
void flush()
{
if(_elements.empty()) return;
-
//1000 should be _totalWidth but it does not work
int w = 1000, h = _maxHeight;
Fl_Offscreen offscreen = fl_create_offscreen(w, h);
--
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