From d2870d6f7d378e374da515280e9434c605b1ac4e Mon Sep 17 00:00:00 2001
From: ManoloFLTK <manolo>
Date: Tue, 4 Dec 2018 15:11:03 +0100
Subject: Define useful implementations of Fl_Graphics_Driver::push_no_clip()
 and pop_clip().

---
 src/Fl_Graphics_Driver.cxx | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

(limited to 'src/Fl_Graphics_Driver.cxx')

diff --git a/src/Fl_Graphics_Driver.cxx b/src/Fl_Graphics_Driver.cxx
index 9de99b4ee..784e5b5c2 100644
--- a/src/Fl_Graphics_Driver.cxx
+++ b/src/Fl_Graphics_Driver.cxx
@@ -385,6 +385,20 @@ void Fl_Graphics_Driver::polygon(int x0, int y0, int x1, int y1, int x2, int y2,
   polygon(x1, y1, x2, y2, x3, y3);
 }
 
+void Fl_Graphics_Driver::push_no_clip() {
+  if (rstackptr < region_stack_max) rstack[++rstackptr] = 0;
+  else Fl::warning("Fl_Graphics_Driver::push_no_clip: clip stack overflow!\n");
+  restore_clip();
+}
+
+void Fl_Graphics_Driver::pop_clip() {
+  if (rstackptr > 0) {
+    Fl_Region oldr = rstack[rstackptr--];
+    if (oldr) XDestroyRegion(oldr);
+  } else Fl::warning("Fl_Graphics_Driver::pop_clip: clip stack underflow!\n");
+  restore_clip();
+}
+
 /**
  \}
  \endcond
-- 
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