From ac4a20591d64b08d435c88acce724a891a51d551 Mon Sep 17 00:00:00 2001
From: Mikko Rasa <tdb@tdb.fi>
Date: Mon, 3 Aug 2009 12:26:54 +0000
Subject: [PATCH] Various fixes to Window resizing and fullscreen handling on
 X11 Add fullscreen parameter to SimpleWindow constructors

---
 source/gbase/simplewindow.cpp |  8 ++++----
 source/gbase/simplewindow.h   |  4 ++--
 source/gbase/window.cpp       | 33 +++++++++++++++++++++++++--------
 source/gbase/window.h         |  1 +
 4 files changed, 32 insertions(+), 14 deletions(-)

diff --git a/source/gbase/simplewindow.cpp b/source/gbase/simplewindow.cpp
index aa34c04..406090d 100644
--- a/source/gbase/simplewindow.cpp
+++ b/source/gbase/simplewindow.cpp
@@ -10,13 +10,13 @@ Distributed under the LGPL
 namespace Msp {
 namespace Graphics {
 
-SimpleWindow::SimpleWindow(unsigned w, unsigned h):
-	Window(dpy, w, h)
+SimpleWindow::SimpleWindow(unsigned w, unsigned h, bool fs):
+	Window(dpy, w, h, fs)
 { }
 
 
-SimpleGLWindow::SimpleGLWindow(unsigned w, unsigned h):
-	SimpleWindow(w, h),
+SimpleGLWindow::SimpleGLWindow(unsigned w, unsigned h, bool fs):
+	SimpleWindow(w, h, fs),
 	gl_ctx(*this)
 { }
 
diff --git a/source/gbase/simplewindow.h b/source/gbase/simplewindow.h
index a506636..1f5bb7d 100644
--- a/source/gbase/simplewindow.h
+++ b/source/gbase/simplewindow.h
@@ -33,7 +33,7 @@ A simplified Window that encapsulates a Display.
 class SimpleWindow: public SimpleWindowBase, public Window
 {
 public:
-	SimpleWindow(unsigned, unsigned);
+	SimpleWindow(unsigned, unsigned, bool =false);
 };
 
 
@@ -46,7 +46,7 @@ private:
 	GLContext gl_ctx;
 
 public:
-	SimpleGLWindow(unsigned, unsigned);
+	SimpleGLWindow(unsigned, unsigned, bool =false);
 	GLContext &get_gl_context() { return gl_ctx; }
 	void swap_buffers();
 };
diff --git a/source/gbase/window.cpp b/source/gbase/window.cpp
index 08cb74d..06af1ae 100644
--- a/source/gbase/window.cpp
+++ b/source/gbase/window.cpp
@@ -9,6 +9,9 @@ Distributed under the LGPL
 #ifndef WIN32
 #include <X11/Xatom.h>
 #include <X11/Xutil.h>
+#ifdef WITH_XF86VIDMODE
+#include <X11/extensions/xf86vmode.h>
+#endif
 #else
 #include <windowsx.h>
 #endif
@@ -84,6 +87,7 @@ void Window::init()
 {
 	visible=false;
 	kbd_autorepeat=true;
+	resizing=false;
 	priv=new Private;
 
 #ifdef WIN32
@@ -210,6 +214,7 @@ void Window::set_title(const string &title)
 void Window::reconfigure(const WindowOptions &opts)
 {
 	bool fullscreen_changed=(opts.fullscreen!=options.fullscreen);
+	resizing=(opts.width!=options.width || opts.height!=options.height);
 
 	options=opts;
 
@@ -238,10 +243,9 @@ void Window::reconfigure(const WindowOptions &opts)
 #else
 	::Display *dpy=display.get_private().display;
 
+	bool was_visible=visible;
 	if(fullscreen_changed)
 	{
-		bool was_visible=visible;
-
 		if(was_visible)
 		{
 			hide();
@@ -254,9 +258,6 @@ void Window::reconfigure(const WindowOptions &opts)
 		XSetWindowAttributes attr;
 		attr.override_redirect=options.fullscreen;
 		XChangeWindowAttributes(dpy, priv->window, CWOverrideRedirect, &attr);
-
-		if(was_visible)
-			show();
 	}
 
 	XSizeHints hints;
@@ -274,6 +275,12 @@ void Window::reconfigure(const WindowOptions &opts)
 		XMoveResizeWindow(dpy, priv->window, 0, 0, options.width, options.height);
 	else
 		XResizeWindow(dpy, priv->window, options.width, options.height);
+
+	if(fullscreen_changed)
+	{
+		if(was_visible)
+			show();
+	}
 #endif
 
 	if(visible)
@@ -442,9 +449,19 @@ bool Window::event(const Event &evnt)
 		signal_key_release.emit(XKeycodeToKeysym(display.get_private().display, ev.xkey.keycode, 0), ev.xkey.state);
 		break;
 	case ConfigureNotify:
-		options.width=ev.xconfigure.width;
-		options.height=ev.xconfigure.height;
-		signal_resize.emit(options.width, options.height);
+		if((ev.xconfigure.width==static_cast<int>(options.width) && ev.xconfigure.height==static_cast<int>(options.height)) == resizing)
+		{
+			options.width=ev.xconfigure.width;
+			options.height=ev.xconfigure.height;
+			resizing=false;
+			signal_resize.emit(options.width, options.height);
+		}
+		if(options.fullscreen)
+		{
+			::Display *dpy=display.get_private().display;
+			int screen=DefaultScreen(dpy);
+			XF86VidModeSetViewPort(dpy, screen, ev.xconfigure.x, ev.xconfigure.y);
+		}
 		break;
 	case ClientMessage:
 		if(ev.xclient.data.l[0]==static_cast<long>(priv->wm_delete_window))
diff --git a/source/gbase/window.h b/source/gbase/window.h
index ad575af..38ffb6d 100644
--- a/source/gbase/window.h
+++ b/source/gbase/window.h
@@ -45,6 +45,7 @@ protected:
 	WindowOptions options;
 	bool visible;
 	bool kbd_autorepeat;
+	bool resizing;
 	Private *priv;
 
 public:
-- 
2.43.0