From 225c3d6da316838aba9432a319bbdd33da97a001 Mon Sep 17 00:00:00 2001
From: Manolo Gouy <Manolo>
Date: Tue, 25 Jul 2017 10:57:24 +0000
Subject: Rewrite Fl_Window_Driver::resize_after_scale_change() removing calls
 to Fl_Window::hide() and Fl_Window::show().

Windows are now rescaled with a call to Fl_Window::resize() which has been slightly modified.
Static member variable bool Fl_Window_Driver::in_resize_after_scale_change is created,
and is true if and only if Fl_Window::resize() is called by Fl_Window_Driver::resize_after_scale_change().
This new flag allows Fl_Window::resize() to perform correctly the rescaling of the window.
Fl_Gl_Window::resize() and Fl_Double_Window::resize() also consult the value of
the Fl_Window_Driver::in_resize_after_scale_change flag.
The platform-specific Fl_WinAPI_Window_Driver::resize() and Fl_X11_Window_Driver::resize()
also use  the Fl_Window_Driver::in_resize_after_scale_change flag.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.4@12349 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 src/Fl_Window_Driver.cxx | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

(limited to 'src/Fl_Window_Driver.cxx')

diff --git a/src/Fl_Window_Driver.cxx b/src/Fl_Window_Driver.cxx
index 07fbef967..f294a50cb 100644
--- a/src/Fl_Window_Driver.cxx
+++ b/src/Fl_Window_Driver.cxx
@@ -260,21 +260,21 @@ int Fl_Window_Driver::screen_num() {
   return Fl::screen_num(x(), y(), w(), h());
 }
 
+bool Fl_Window_Driver::in_resize_after_scale_change = false;
+
 void Fl_Window_Driver::resize_after_scale_change(int ns, float old_f, float new_f) {
-  int oldx = pWindow->x(), oldy = pWindow->y();
-  fl_uintptr_t current = current_cursor();
-  pWindow->hide();
   screen_num(ns);
-  pWindow->position(oldx*old_f/new_f, oldy*old_f/new_f);
-  force_position(1);
+  Fl_Graphics_Driver::default_driver().scale(new_f);
+  int W, H;
   if (pWindow->fullscreen_active()) {
-    pWindow->size(pWindow->w() * old_f/new_f, pWindow->h() * old_f/new_f);
+    W = pWindow->w() * old_f/new_f; H = pWindow->h() * old_f/new_f;
+  } else {
+    W = pWindow->w(); H = pWindow->h();
   }
-  Fl_Graphics_Driver::default_driver().scale(new_f);
-  pWindow->show();
-  reuse_cursor(current);
-  reuse_icons();
-//extern FILE*LOG;fprintf(LOG,"ns=%d old_f%.2f new_f=%.2f\n",ns,old_f,new_f);fflush(LOG);
+  in_resize_after_scale_change = true;
+  pWindow->resize(pWindow->x()*old_f/new_f,  pWindow->y()*old_f/new_f, W, H);
+  size_range();
+  in_resize_after_scale_change = false;
 }
 
 //
-- 
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