Move other_xid member variable from class Fl_X to class F_Window_Driver.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11654 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

14 files changed, 32 insertions, 36 deletions

diff --git a/FL/Fl_Window_Driver.H b/FL/Fl_Window_Driver.H
index 61f5abc8f..67fc2dfb3 100644
--- a/FL/Fl_Window_Driver.H
+++ b/FL/Fl_Window_Driver.H
@@ -53,6 +53,7 @@ public:
   virtual ~Fl_Window_Driver();
   static Fl_Window_Driver *newWindowDriver(Fl_Window *);
   int wait_for_expose_value;
+  Fl_Offscreen other_xid; // offscreen bitmap (overlay and double-buffered windows)
 
   // --- frequently used accessors to public window data
   /** returns the x coordinate of the window. */
diff --git a/FL/mac.H b/FL/mac.H
index b1a40ee11..95a20f767 100644
--- a/FL/mac.H
+++ b/FL/mac.H
@@ -124,7 +124,6 @@ extern NSCursor *fl_default_cursor;
 class Fl_X {
 public:
   Window xid;              // pointer to the Cocoa window object (FLWindow*)
-  Fl_Offscreen other_xid;  // pointer for offscreen bitmaps (overlay window)
   Fl_Window *w;            // FLTK window for 
   Fl_Region region;
   Fl_X *next;              // chain of mapped windows
diff --git a/FL/win32.H b/FL/win32.H
index 4b28dd245..0e31dc3ab 100644
--- a/FL/win32.H
+++ b/FL/win32.H
@@ -50,7 +50,6 @@ class FL_EXPORT Fl_X {
 public:
   // member variables - add new variables only at the end of this block
   Window xid;
-  HBITMAP other_xid; // for double-buffered windows
   Fl_Window* w;
   Fl_Region region;
   Fl_X *next;
diff --git a/FL/x.H b/FL/x.H
index b90964108..5bf928afe 100644
--- a/FL/x.H
+++ b/FL/x.H
@@ -113,7 +113,6 @@ extern FL_EXPORT Fl_XFont_On_Demand fl_xfont;
 class FL_EXPORT Fl_X {
 public:
   Window xid;
-  Window other_xid;
   Fl_Window *w;
   Fl_Region region;
   Fl_X *next;
diff --git a/src/Fl_Double_Window.cxx b/src/Fl_Double_Window.cxx
index 00aca01ee..825c78720 100644
--- a/src/Fl_Double_Window.cxx
+++ b/src/Fl_Double_Window.cxx
@@ -56,14 +56,14 @@ void Fl_Double_Window::resize(int X,int Y,int W,int H) {
   int oh = h();
   Fl_Window::resize(X,Y,W,H);
   Fl_X *myi = Fl_X::i(this);
-  if (myi && myi->other_xid && (ow < w() || oh < h()))
+  if (myi && driver()->other_xid && (ow < w() || oh < h()))
     driver()->destroy_double_buffer();
 }
 
 
 void Fl_Double_Window::hide() {
   Fl_X *myi = Fl_X::i(this);
-  if (myi && myi->other_xid) {
+  if (myi && driver()->other_xid) {
     driver()->destroy_double_buffer();
   }
   Fl_Window::hide();
diff --git a/src/Fl_Window_Driver.cxx b/src/Fl_Window_Driver.cxx
index 13a90f8f0..0399f7fff 100644
--- a/src/Fl_Window_Driver.cxx
+++ b/src/Fl_Window_Driver.cxx
@@ -104,9 +104,8 @@ void Fl_Window_Driver::draw_end()
 
 
 void Fl_Window_Driver::destroy_double_buffer() {
-  Fl_X *i = Fl_X::i(pWindow);
-  fl_delete_offscreen(i->other_xid);
-  i->other_xid = 0;
+  fl_delete_offscreen(other_xid);
+  other_xid = 0;
 }
 
 
diff --git a/src/Fl_cocoa.mm b/src/Fl_cocoa.mm
index c345c9f85..51d1efaaa 100644
--- a/src/Fl_cocoa.mm
+++ b/src/Fl_cocoa.mm
@@ -2944,7 +2944,7 @@ void Fl_X::make(Fl_Window* w)
     }
   
     Fl_X *x = new Fl_X;
-    x->other_xid = 0; // room for doublebuffering image map. On OS X this is only used by overlay windows
+    w->driver()->other_xid = 0; // room for doublebuffering image map. On OS X this is only used by overlay windows
     x->region = 0;
     x->subRect(0);
     ((Fl_Cocoa_Window_Driver*)w->pWindowDriver)->gc = 0;
diff --git a/src/Fl_win32.cxx b/src/Fl_win32.cxx
index fd79cc437..535656d69 100644
--- a/src/Fl_win32.cxx
+++ b/src/Fl_win32.cxx
@@ -1796,7 +1796,7 @@ Fl_X* Fl_X::make(Fl_Window* w) {
   }
 
   Fl_X *x = new Fl_X;
-  x->other_xid = 0;
+  w->driver()->other_xid = 0;
   x->w = w; w->i = x;
   x->region = 0;
   x->private_dc = 0;
diff --git a/src/Fl_x.cxx b/src/Fl_x.cxx
index 334e44158..b8c5a2cc2 100644
--- a/src/Fl_x.cxx
+++ b/src/Fl_x.cxx
@@ -2216,7 +2216,7 @@ void fl_fix_focus(); // in Fl.cxx
 Fl_X* Fl_X::set_xid(Fl_Window* win, Window winxid) {
   Fl_X *xp = new Fl_X;
   xp->xid = winxid;
-  xp->other_xid = 0;
+  win->driver()->other_xid = 0;
   xp->w = win; win->i = xp;
   xp->next = Fl_X::first;
   xp->region = 0;
diff --git a/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx b/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx
index 47fb70242..68389bae9 100644
--- a/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx
+++ b/src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx
@@ -73,14 +73,14 @@ void Fl_Cocoa_Window_Driver::flush_overlay()
   pWindow->make_current(); // make sure fl_gc is non-zero
   Fl_X *myi = Fl_X::i(pWindow);
   if (!myi) return; // window not yet created
-  if (!myi->other_xid) {
-      myi->other_xid = fl_create_offscreen(oWindow->w(), oWindow->h());
+  if (!other_xid) {
+      other_xid = fl_create_offscreen(oWindow->w(), oWindow->h());
       oWindow->clear_damage(FL_DAMAGE_ALL);
   }
     if (oWindow->damage() & ~FL_DAMAGE_EXPOSE) {
       fl_clip_region(myi->region); myi->region = 0;
-      if ( myi->other_xid ) {
-        fl_begin_offscreen( myi->other_xid );
+      if ( other_xid ) {
+        fl_begin_offscreen( other_xid );
         fl_clip_region( 0 );
         draw();
         fl_end_offscreen();
@@ -92,7 +92,7 @@ void Fl_Cocoa_Window_Driver::flush_overlay()
   // on Irix (at least) it is faster to reduce the area copied to
   // the current clip region:
   int X,Y,W,H; fl_clip_box(0,0,oWindow->w(),oWindow->h(),X,Y,W,H);
-  if (myi->other_xid) fl_copy_offscreen(X, Y, W, H, myi->other_xid, X, Y);
+  if (other_xid) fl_copy_offscreen(X, Y, W, H, other_xid, X, Y);
   
   if (overlay() == oWindow) oWindow->draw_overlay();
 }
diff --git a/src/drivers/PicoAndroid/Fl_PicoAndroid_Window_Driver.cxx b/src/drivers/PicoAndroid/Fl_PicoAndroid_Window_Driver.cxx
index ef0501ad5..7da770170 100644
--- a/src/drivers/PicoAndroid/Fl_PicoAndroid_Window_Driver.cxx
+++ b/src/drivers/PicoAndroid/Fl_PicoAndroid_Window_Driver.cxx
@@ -69,7 +69,7 @@ Fl_X *Fl_PicoAndroid_Window_Driver::makeWindow()
     parent = 0;
   }
   Fl_X *x = new Fl_X;
-  x->other_xid = 0;
+  other_xid = 0;
   x->w = pWindow;
   x->region = 0;
   if (!pWindow->force_position()) {
diff --git a/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx b/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
index bba11e520..96c52a459 100644
--- a/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
+++ b/src/drivers/PicoSDL/Fl_PicoSDL_Window_Driver.cxx
@@ -67,7 +67,7 @@ Fl_X *Fl_PicoSDL_Window_Driver::makeWindow()
     parent = 0;
   }
   Fl_X *x = new Fl_X;
-  x->other_xid = 0;
+  other_xid = 0;
   x->w = pWindow;
   x->region = 0;
   if (!pWindow->force_position()) {
diff --git a/src/drivers/WinAPI/Fl_WinAPI_Window_Driver.cxx b/src/drivers/WinAPI/Fl_WinAPI_Window_Driver.cxx
index 366a4c6ef..b72a6d7a4 100644
--- a/src/drivers/WinAPI/Fl_WinAPI_Window_Driver.cxx
+++ b/src/drivers/WinAPI/Fl_WinAPI_Window_Driver.cxx
@@ -268,20 +268,20 @@ void Fl_WinAPI_Window_Driver::flush_double()
   Fl_X *i = Fl_X::i(pWindow);
   if (!i) return; // window not yet created
 
-  if (!i->other_xid) {
-    i->other_xid = fl_create_offscreen(w(), h());
+  if (!other_xid) {
+    other_xid = fl_create_offscreen(w(), h());
     pWindow->clear_damage(FL_DAMAGE_ALL);
   }
   if (pWindow->damage() & ~FL_DAMAGE_EXPOSE) {
     fl_clip_region(i->region); i->region = 0;
-    fl_begin_offscreen(i->other_xid);
+    fl_begin_offscreen(other_xid);
     fl_graphics_driver->clip_region( 0 );
     draw();
     fl_end_offscreen();
   }
 
   int X,Y,W,H; fl_clip_box(0,0,w(),h(),X,Y,W,H);
-  if (i->other_xid) fl_copy_offscreen(X, Y, W, H, i->other_xid, X, Y);
+  if (other_xid) fl_copy_offscreen(X, Y, W, H, other_xid, X, Y);
 }
 
 
@@ -297,13 +297,13 @@ void Fl_WinAPI_Window_Driver::flush_overlay()
   int eraseoverlay = (pWindow->damage()&FL_DAMAGE_OVERLAY);
   pWindow->clear_damage((uchar)(pWindow->damage()&~FL_DAMAGE_OVERLAY));
 
-  if (!i->other_xid) {
-    i->other_xid = fl_create_offscreen(w(), h());
+  if (!other_xid) {
+    other_xid = fl_create_offscreen(w(), h());
     pWindow->clear_damage(FL_DAMAGE_ALL);
   }
   if (pWindow->damage() & ~FL_DAMAGE_EXPOSE) {
     fl_clip_region(i->region); i->region = 0;
-    fl_begin_offscreen(i->other_xid);
+    fl_begin_offscreen(other_xid);
     fl_graphics_driver->clip_region(0);
     draw();
     fl_end_offscreen();
@@ -311,7 +311,7 @@ void Fl_WinAPI_Window_Driver::flush_overlay()
 
   if (eraseoverlay) fl_clip_region(0);
   int X, Y, W, H; fl_clip_box(0, 0, w(), h(), X, Y, W, H);
-  if (i->other_xid) fl_copy_offscreen(X, Y, W, H, i->other_xid, X, Y);
+  if (other_xid) fl_copy_offscreen(X, Y, W, H, other_xid, X, Y);
 
   if (overlay() == oWindow) oWindow->draw_overlay();
 }
diff --git a/src/drivers/X11/Fl_X11_Window_Driver.cxx b/src/drivers/X11/Fl_X11_Window_Driver.cxx
index b468cd60d..bb952b7bd 100644
--- a/src/drivers/X11/Fl_X11_Window_Driver.cxx
+++ b/src/drivers/X11/Fl_X11_Window_Driver.cxx
@@ -80,8 +80,8 @@ void Fl_X11_Window_Driver::flush_double_dbe(int erase_overlay)
 {
   pWindow->make_current(); // make sure fl_gc is non-zero
   Fl_X *i = Fl_X::i(pWindow);
-  if (!i->other_xid) {
-    i->other_xid = XdbeAllocateBackBufferName(fl_display, fl_xid(pWindow), XdbeCopied);
+  if (!other_xid) {
+    other_xid = XdbeAllocateBackBufferName(fl_display, fl_xid(pWindow), XdbeCopied);
     backbuffer_bad = 1;
     pWindow->clear_damage(FL_DAMAGE_ALL);
   }
@@ -94,7 +94,7 @@ void Fl_X11_Window_Driver::flush_double_dbe(int erase_overlay)
   // Redraw as needed...
   if (pWindow->damage()) {
     fl_clip_region(i->region); i->region = 0;
-    fl_window = i->other_xid;
+    fl_window = other_xid;
     draw();
     fl_window = i->xid;
   }
@@ -111,9 +111,8 @@ void Fl_X11_Window_Driver::flush_double_dbe(int erase_overlay)
 void Fl_X11_Window_Driver::destroy_double_buffer() {
 #if USE_XDBE
   if (can_xdbe()) {
-    Fl_X *i = Fl_X::i(pWindow);
-    XdbeDeallocateBackBufferName(fl_display, i->other_xid);
-    i->other_xid = 0;
+    XdbeDeallocateBackBufferName(fl_display, other_xid);
+    other_xid = 0;
   }
   else
 #endif // USE_XDBE
@@ -218,19 +217,19 @@ void Fl_X11_Window_Driver::flush_double(int erase_overlay)
 {
   pWindow->make_current(); // make sure fl_gc is non-zero
   Fl_X *i = Fl_X::i(pWindow);
-  if (!i->other_xid) {
-      i->other_xid = fl_create_offscreen(w(), h());
+  if (!other_xid) {
+      other_xid = fl_create_offscreen(w(), h());
     pWindow->clear_damage(FL_DAMAGE_ALL);
   }
     if (pWindow->damage() & ~FL_DAMAGE_EXPOSE) {
       fl_clip_region(i->region); i->region = 0;
-      fl_window = i->other_xid;
+      fl_window = other_xid;
       draw();
       fl_window = i->xid;
     }
   if (erase_overlay) fl_clip_region(0);
   int X,Y,W,H; fl_clip_box(0,0,w(),h(),X,Y,W,H);
-  if (i->other_xid) fl_copy_offscreen(X, Y, W, H, i->other_xid, X, Y);
+  if (other_xid) fl_copy_offscreen(X, Y, W, H, other_xid, X, Y);
 }