From f058d3a99c396f21d6e17f201682462da1d305cc Mon Sep 17 00:00:00 2001
From: Matthias Melcher <fltk@matthiasm.com>
Date: Wed, 7 Mar 2018 21:07:35 +0000
Subject: Android: using wait_for_expose to sync screen and windows

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12718 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/drivers/Android/Fl_Android_Window_Driver.cxx | 17 ++++++++++++++++-
 1 file changed, 16 insertions(+), 1 deletion(-)

(limited to 'src/drivers/Android/Fl_Android_Window_Driver.cxx')

diff --git a/src/drivers/Android/Fl_Android_Window_Driver.cxx b/src/drivers/Android/Fl_Android_Window_Driver.cxx
index 42ffe2917..3c8d36ee7 100644
--- a/src/drivers/Android/Fl_Android_Window_Driver.cxx
+++ b/src/drivers/Android/Fl_Android_Window_Driver.cxx
@@ -69,13 +69,28 @@ void Fl_Android_Window_Driver::show()
     i(x);
     x->next = Fl_X::first;
     Fl_X::first = x;
-    pWindow->redraw();
+    if (Fl_Android_Application::native_window()) {
+      pWindow->redraw();
+    } else {
+      pWindow->wait_for_expose();
+    }
   } else {
     // bring window to front
   }
 }
 
 
+void Fl_Android_Window_Driver::expose_all()
+{
+  for (Fl_X *x = Fl_X::first; x; x = x->next) {
+    Fl_Window *win = x->w;
+    win->driver()->wait_for_expose_value = 0;
+    win->damage(FL_DAMAGE_EXPOSE);
+    win->redraw();
+  }
+}
+
+
 void Fl_Android_Window_Driver::make_current()
 {
   ((Fl_Android_Screen_Driver*)Fl::screen_driver())->pScreenContentChanged = true;
-- 
cgit v1.2.3