Rewrite Fl_Window::hide() under the driver model.

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3-porting@11402 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

FL/Fl_Window_Driver.H

@@ -83,6 +83,8 @@ public:
   virtual void show();
   virtual void show_menu();
   virtual void resize(int X,int Y,int W,int H) {}
+  virtual void hide() {}
+  int hide_common();
 
   // --- window shape stuff
   void shape_pixmap_(Fl_Image* pixmap); // TODO: check

src/Fl.cxx

@@ -1450,147 +1450,6 @@ int Fl::handle_(int e, Fl_Window* window)
   return send_handlers(e);
 }
 
-////////////////////////////////////////////////////////////////
-// hide() destroys the X window, it does not do unmap!
-
-#if defined(WIN32)
-extern void fl_clipboard_notify_retarget(HWND wnd);
-extern void fl_update_clipboard(void);
-#elif USE_XFT
-extern void fl_destroy_xft_draw(Window);
-#endif
-
-void Fl_Window::hide() {
-#ifdef WIN32 // platform fix
-  // STR#3079: if there remains a window and a non-modal window, and the window is deleted,
-  // the app remains running without any apparent window.
-  // Bug mechanism: hiding an owner window unmaps the owned (non-modal) window(s)
-  // but does not delete it(them) in FLTK.
-  // Fix for it: 
-  // when hiding a window, build list of windows it owns, and do hide/show on them.
-  int count = 0;
-  Fl_Window *win, **doit = NULL;
-  for (win = Fl::first_window(); win && i; win = Fl::next_window(win)) {
-    if (win->non_modal() && GetWindow(fl_xid(win), GW_OWNER) == i->xid) {
-      count++;
-    }
-  }
-  if (count) {
-    doit = new Fl_Window*[count];
-    count = 0;
-    for (win = Fl::first_window(); win && i; win = Fl::next_window(win)) {
-      if (win->non_modal() && GetWindow(fl_xid(win), GW_OWNER) == i->xid) {
-	doit[count++] = win;
-      }
-    }
-  }
-#endif
-  clear_visible();
-
-  if (!shown()) return;
-
-  // remove from the list of windows:
-  Fl_X* ip = i;
-  Fl_X** pp = &Fl_X::first;
-  for (; *pp != ip; pp = &(*pp)->next) if (!*pp) return;
-  *pp = ip->next;
-#ifdef __APPLE__ // platform fix
-  // MacOS X manages a single pointer per application. Make sure that hiding
-  // a toplevel window will not leave us with some random pointer shape, or
-  // worst case, an invisible pointer
-  if (!parent()) cursor(FL_CURSOR_DEFAULT);
-#endif
-  i = 0;
-
-  // recursively remove any subwindows:
-  for (Fl_X *wi = Fl_X::first; wi;) {
-    Fl_Window* W = wi->w;
-    if (W->window() == this) {
-      W->hide();
-      W->set_visible();
-      wi = Fl_X::first;
-    } else wi = wi->next;
-  }
-
-  if (this == Fl::modal_) { // we are closing the modal window, find next one:
-    Fl_Window* W;
-    for (W = Fl::first_window(); W; W = Fl::next_window(W))
-      if (W->modal()) break;
-    Fl::modal_ = W;
-  }
-
-  // Make sure no events are sent to this window:
-  fl_throw_focus(this);
-  handle(FL_HIDE);
-
-#if defined(WIN32)
-  // make sure any custom icons get freed
-  icons(NULL, 0);
-  // this little trick keeps the current clipboard alive, even if we are about
-  // to destroy the window that owns the selection.
-  if (GetClipboardOwner()==ip->xid)
-    fl_update_clipboard();
-  // Make sure we unlink this window from the clipboard chain
-  fl_clipboard_notify_retarget(ip->xid);
-  // Send a message to myself so that I'll get out of the event loop...
-  PostMessage(ip->xid, WM_APP, 0, 0);
-  if (ip->private_dc) fl_release_dc(ip->xid, ip->private_dc);
-    if (ip->xid == fl_window && fl_graphics_driver->gc()) {
-      fl_release_dc(fl_window, (HDC)fl_graphics_driver->gc());
-      fl_window = (HWND)-1;
-      fl_graphics_driver->gc(0);
-# ifdef FLTK_USE_CAIRO
-      if (Fl::cairo_autolink_context()) Fl::cairo_make_current((Fl_Window*) 0);
-# endif
-    }
-#elif defined(__APPLE_QUARTZ__) // PORTME: Fl_Window_Driver - platform window unmapping
-  Fl_X::q_release_context(ip);
-  if ( ip->xid == fl_window )
-    fl_window = 0;
-#endif
-
-  if (ip->region) XDestroyRegion(ip->region);
-
-#if defined(USE_X11)
-# if USE_XFT
-  fl_destroy_xft_draw(ip->xid);
-# endif
-  // this test makes sure ip->xid has not been destroyed already
-  if (ip->xid) XDestroyWindow(fl_display, ip->xid);
-#elif defined(WIN32)
-  // this little trickery seems to avoid the popup window stacking problem
-  HWND p = GetForegroundWindow();
-  if (p==GetParent(ip->xid)) {
-    ShowWindow(ip->xid, SW_HIDE);
-    ShowWindow(p, SW_SHOWNA);
-  }
-  XDestroyWindow(fl_display, ip->xid);
-  // end of fix for STR#3079
-  if (count) {
-    int ii;
-    for (ii = 0; ii < count; ii++)  doit[ii]->hide();
-    for (ii = 0; ii < count; ii++)  {
-      if (ii != 0) doit[0]->show(); // Fix for STR#3165
-      doit[ii]->show();
-    }
-    delete[] doit;
-  }
-#elif defined(__APPLE_QUARTZ__) // PORTME: Fl_Window_Driver - platform window unmapping
-  ip->destroy();
-#elif defined(FL_PORTING)
-#  pragma message "FL_PORTING: code to destroy a window on screen"
-#else
-# error unsupported platform
-#endif
-
-#ifdef WIN32
-  // Try to stop the annoying "raise another program" behavior
-  if (non_modal() && Fl::first_window() && Fl::first_window()->shown())
-    Fl::first_window()->show();
-#endif
-  delete ip;
-}
-
 
 // FL_SHOW and FL_HIDE are called whenever the visibility of this widget
 // or any parent changes.  We must correctly map/unmap the system's window.

src/Fl_Window.cxx

@@ -510,6 +510,10 @@ void Fl_Window::resize(int X,int Y,int W,int H) {
   pWindowDriver->resize(X, Y, W, H);
 }
 
+void Fl_Window::hide() {
+  pWindowDriver->hide();
+}
+
 //
 // End of "$Id$".
 //

src/Fl_Window_Driver.cxx

@@ -21,7 +21,9 @@
 #include <config.h>
 #include <FL/Fl_Window_Driver.H>
 #include <FL/fl_draw.H>
+#include <FL/Fl.H>
 
+extern void fl_throw_focus(Fl_Widget *o);
 
 Fl_Window_Driver::Fl_Window_Driver(Fl_Window *win) :
 pWindow(win)
@@ -151,6 +153,44 @@ void Fl_Window_Driver::capture_titlebar_and_borders(Fl_Shared_Image*& top, Fl_Sh
   top = left = bottom = right = NULL;
 }
 
+
+// This function is available for use by platform-specific, Fl_Window_Driver-derived classes
+int Fl_Window_Driver::hide_common() {
+  pWindow->clear_visible();
+  
+  if (!pWindow->shown()) return 1;
+  
+  // remove from the list of windows:
+  Fl_X* ip = Fl_X::i(pWindow);
+  Fl_X** pp = &Fl_X::first;
+  for (; *pp != ip; pp = &(*pp)->next) if (!*pp) return 1;
+  *pp = ip->next;
+  
+  pWindow->i = 0;
+  
+  // recursively remove any subwindows:
+  for (Fl_X *wi = Fl_X::first; wi;) {
+    Fl_Window* W = wi->w;
+    if (W->window() == pWindow) {
+      W->hide();
+      W->set_visible();
+      wi = Fl_X::first;
+    } else wi = wi->next;
+  }
+  
+  if (pWindow == Fl::modal_) { // we are closing the modal window, find next one:
+    Fl_Window* W;
+    for (W = Fl::first_window(); W; W = Fl::next_window(W))
+      if (W->modal()) break;
+    Fl::modal_ = W;
+  }
+  
+  // Make sure no events are sent to this window:
+  fl_throw_focus(pWindow);
+  pWindow->handle(FL_HIDE);
+  return 0;
+}
+
 //
 // End of "$Id$".
 //

src/drivers/Cocoa/Fl_Cocoa_Window_Driver.H

@@ -77,6 +77,7 @@ public:
   virtual void label(const char *name, const char *mininame);
   virtual void show();
   virtual void resize(int X,int Y,int W,int H);
+  virtual void hide();
 
   virtual void shape(const Fl_Image* img);
   // that one is implemented in Fl_Cocoa.mm because it uses Objective-c

src/drivers/Cocoa/Fl_Cocoa_Window_Driver.cxx

@@ -223,6 +223,22 @@ void Fl_Cocoa_Window_Driver::shape(const Fl_Image* img) {
 #endif
 }
 
+
+void Fl_Cocoa_Window_Driver::hide() {
+  Fl_X* ip = Fl_X::i(pWindow);
+  // MacOS X manages a single pointer per application. Make sure that hiding
+  // a toplevel window will not leave us with some random pointer shape, or
+  // worst case, an invisible pointer
+  if (ip && !pWindow->parent()) pWindow->cursor(FL_CURSOR_DEFAULT);
+  if ( hide_common() ) return;
+  Fl_X::q_release_context(ip);
+  if ( ip->xid == fl_window )
+    fl_window = 0;
+  if (ip->region) XDestroyRegion(ip->region);
+  ip->destroy();
+  delete ip;
+}
+
 //
 // End of "$Id$".
 //

src/drivers/WinAPI/Fl_WinAPI_Window_Driver.H

@@ -82,6 +82,7 @@ public:
   virtual void show();
   virtual void label(const char *name,const char *iname);
   virtual void resize(int X,int Y,int W,int H);
+  virtual void hide();
 
   virtual void shape(const Fl_Image* img);
   virtual void icons(const Fl_RGB_Image *icons[], int count);

src/drivers/WinAPI/Fl_WinAPI_Window_Driver.cxx

@@ -445,6 +445,82 @@ void Fl_WinAPI_Window_Driver::label(const char *name,const char *iname) {
   }
 }
 
+
+extern void fl_clipboard_notify_retarget(HWND wnd);
+extern void fl_update_clipboard(void);
+
+void Fl_WinAPI_Window_Driver::hide() {
+  Fl_X* ip = Fl_X::i(pWindow);
+  // STR#3079: if there remains a window and a non-modal window, and the window is deleted,
+  // the app remains running without any apparent window.
+  // Bug mechanism: hiding an owner window unmaps the owned (non-modal) window(s)
+  // but does not delete it(them) in FLTK.
+  // Fix for it:
+  // when hiding a window, build list of windows it owns, and do hide/show on them.
+  int count = 0;
+  Fl_Window *win, **doit = NULL;
+  for (win = Fl::first_window(); win && ip; win = Fl::next_window(win)) {
+    if (win->non_modal() && GetWindow(fl_xid(win), GW_OWNER) == ip->xid) {
+      count++;
+    }
+  }
+  if (count) {
+    doit = new Fl_Window*[count];
+    count = 0;
+    for (win = Fl::first_window(); win && ip; win = Fl::next_window(win)) {
+      if (win->non_modal() && GetWindow(fl_xid(win), GW_OWNER) == ip->xid) {
+        doit[count++] = win;
+      }
+    }
+  }
+
+  if (hide_common()) return;
+  
+  // make sure any custom icons get freed
+  icons(NULL, 0);
+  // this little trick keeps the current clipboard alive, even if we are about
+  // to destroy the window that owns the selection.
+  if (GetClipboardOwner()==ip->xid)
+    fl_update_clipboard();
+  // Make sure we unlink this window from the clipboard chain
+  fl_clipboard_notify_retarget(ip->xid);
+  // Send a message to myself so that I'll get out of the event loop...
+  PostMessage(ip->xid, WM_APP, 0, 0);
+  if (ip->private_dc) fl_release_dc(ip->xid, ip->private_dc);
+  if (ip->xid == fl_window && fl_graphics_driver->gc()) {
+    fl_release_dc(fl_window, (HDC)fl_graphics_driver->gc());
+    fl_window = (HWND)-1;
+    fl_graphics_driver->gc(0);
+# ifdef FLTK_USE_CAIRO
+    if (Fl::cairo_autolink_context()) Fl::cairo_make_current((Fl_Window*) 0);
+# endif
+  }
+  
+  if (ip->region) XDestroyRegion(ip->region);
+  
+  // this little trickery seems to avoid the popup window stacking problem
+  HWND p = GetForegroundWindow();
+  if (p==GetParent(ip->xid)) {
+    ShowWindow(ip->xid, SW_HIDE);
+    ShowWindow(p, SW_SHOWNA);
+  }
+  XDestroyWindow(fl_display, ip->xid);
+  // end of fix for STR#3079
+  if (count) {
+    int ii;
+    for (ii = 0; ii < count; ii++)  doit[ii]->hide();
+    for (ii = 0; ii < count; ii++)  {
+      if (ii != 0) doit[0]->show(); // Fix for STR#3165
+      doit[ii]->show();
+    }
+    delete[] doit;
+  }
+  // Try to stop the annoying "raise another program" behavior
+  if (pWindow->non_modal() && Fl::first_window() && Fl::first_window()->shown())
+    Fl::first_window()->show();
+  delete ip;
+}
+
 //
 // End of "$Id$".
 //

src/drivers/X11/Fl_X11_Window_Driver.H

@@ -91,6 +91,7 @@ public:
   virtual void resize(int X,int Y,int W,int H);
   virtual void label(const char *name, const char *mininame);
   virtual void destroy_double_buffer();
+  virtual void hide();
 
   virtual void shape(const Fl_Image* img);
   virtual void icons(const Fl_RGB_Image *icons[], int count);

src/drivers/X11/Fl_X11_Window_Driver.cxx

@@ -19,6 +19,7 @@
 
 #include "../../config_lib.h"
 #include "Fl_X11_Window_Driver.H"
+#include "Fl_Xlib_Graphics_Driver.H"
 
 #include <FL/Fl_Shared_Image.H>
 #include <FL/Fl_Overlay_Window.H>
@@ -461,6 +462,19 @@ void Fl_X11_Window_Driver::show_menu()
     pWindow->Fl_Window::show();
 }
 
+
+void Fl_X11_Window_Driver::hide() {
+  Fl_X* ip = Fl_X::i(pWindow);
+  if (hide_common()) return;
+  if (ip->region) XDestroyRegion(ip->region);
+# if USE_XFT
+  Fl_Xlib_Graphics_Driver::destroy_xft_draw(ip->xid);
+# endif
+  // this test makes sure ip->xid has not been destroyed already
+  if (ip->xid) XDestroyWindow(fl_display, ip->xid);
+  delete ip;
+}
+
 //
 // End of "$Id$".
 //

src/drivers/Xlib/Fl_Xlib_Graphics_Driver.H

@@ -44,6 +44,9 @@ public:
   virtual void *gc() { return gc_; }
   virtual void gc(void *value);
   char can_do_alpha_blending();
+#if USE_XFT
+  static void destroy_xft_draw(Window id);
+#endif
   
   // --- bitmap stuff
   Fl_Bitmask create_bitmask(int w, int h, const uchar *array);

src/drivers/Xlib/Fl_Xlib_Graphics_Driver_font_xft.cxx

@@ -958,7 +958,7 @@ static XftDraw* draw_overlay;
 static Window draw_overlay_window;
 #endif
 
-void fl_destroy_xft_draw(Window id) {
+void Fl_Xlib_Graphics_Driver::destroy_xft_draw(Window id) {
   if (id == draw_window)
     XftDrawChange(draw_, draw_window = fl_message_window);
 #if USE_OVERLAY