From 0cfc2554c695bd472ce9e579ddcf1240f4fa155a Mon Sep 17 00:00:00 2001
From: Pierre Ossman <ossman@cendio.se>
Date: Wed, 11 Jun 2014 09:10:53 +0000
Subject: Support for full screen over multiple monitors. The API follows that
 of EWMH, which gives you a good control over which monitors to use.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@10189 ea41ed52-d2ee-0310-a9c1-e6b18d33e121
---
 test/fullscreen.cxx | 58 ++++++++++++++++++++++++++++++++++++++++++++---------
 1 file changed, 49 insertions(+), 9 deletions(-)

(limited to 'test')

diff --git a/test/fullscreen.cxx b/test/fullscreen.cxx
index c9e4b2908..724ec82f0 100644
--- a/test/fullscreen.cxx
+++ b/test/fullscreen.cxx
@@ -127,7 +127,7 @@ class fullscreen_window : public Fl_Single_Window {
   fullscreen_window(int W, int H, const char *t=0);
   int handle (int e);
   Fl_Toggle_Light_Button *b3;
-
+  Fl_Toggle_Light_Button *b4;
 };
 
 fullscreen_window::fullscreen_window(int W, int H, const char *t) : Fl_Single_Window(W, H, t) { 
@@ -170,27 +170,63 @@ void border_cb(Fl_Widget *o, void *p) {
 #endif
 }
 
-int px,py,pw,ph;
 Fl_Button *border_button;
 void fullscreen_cb(Fl_Widget *o, void *p) {
   Fl_Window *w = (Fl_Window *)p;
   int d = ((Fl_Button *)o)->value();
   if (d) {
-    px = w->x();
-    py = w->y();
-    pw = w->w();
-    ph = w->h();
     w->fullscreen();
-    w->override();
 #ifndef WIN32 // update our border state in case border was turned off
     border_button->value(w->border());
 #endif
   } else {
-    //w->fullscreen_off(px,py,pw,ph);
     w->fullscreen_off();
   }
 }
 
+void allscreens_cb(Fl_Widget *o, void *p) {
+  Fl_Window *w = (Fl_Window *)p;
+  int d = ((Fl_Button *)o)->value();
+  if (d) {
+    int top, bottom, left, right;
+    int top_y, bottom_y, left_x, right_x;
+
+    int sx, sy, sw, sh;
+
+    top = bottom = left = right = 0;
+
+    Fl::screen_xywh(sx, sy, sw, sh, 0);
+    top_y = sy;
+    bottom_y = sy + sh;
+    left_x = sx;
+    right_x = sx + sw;
+
+    for (int i = 1;i < Fl::screen_count();i++) {
+      Fl::screen_xywh(sx, sy, sw, sh, i);
+      if (sy < top_y) {
+        top = i;
+        top_y = sy;
+      }
+      if ((sy + sh) > bottom_y) {
+        bottom = i;
+        bottom_y = sy + sh;
+      }
+      if (sx < left_x) {
+        left = i;
+        left_x = sx;
+      }
+      if ((sx + sw) > right_x) {
+        right = i;
+        right_x = sx + sw;
+      }
+    }
+
+    w->fullscreen_screens(top, bottom, left, right);
+  } else {
+    w->fullscreen_screens(-1, -1, -1, -1);
+  }
+}
+
 void update_screeninfo(Fl_Widget *b, void *p) {
     Fl_Browser *browser = (Fl_Browser *)p;
     int x, y, w, h;
@@ -219,7 +255,7 @@ void exit_cb(Fl_Widget *, void *) {
   exit(0);
 }
 
-#define NUMB 7
+#define NUMB 8
 
 int twowindow = 0;
 int initfull = 0;
@@ -284,6 +320,10 @@ int main(int argc, char **argv) {
   window.b3->callback(fullscreen_cb,w);
   y+=30;
 
+  window.b4 = new Fl_Toggle_Light_Button(50,y,window.w()-60,30,"All Screens");
+  window.b4->callback(allscreens_cb,w);
+  y+=30;
+
   Fl_Button eb(50,y,window.w()-60,30,"Exit");
   eb.callback(exit_cb);
   y+=30;
-- 
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