From 318f731e3ecc910605053054e4d24958402c3199 Mon Sep 17 00:00:00 2001
From: Camilla Berglund <elmindreda@users.sourceforge.net>
Date: Tue, 14 Sep 2010 03:53:22 +0200
Subject: [PATCH] Added glfwGetWindowPos.

---
 include/GL/glfw3.h       |  1 +
 readme.html              |  1 +
 src/internal.h           |  1 +
 src/win32/win32_window.c |  3 +++
 src/window.c             | 20 ++++++++++++++++++++
 src/x11/x11_window.c     |  8 ++++++++
 6 files changed, 34 insertions(+)

diff --git a/include/GL/glfw3.h b/include/GL/glfw3.h
index 2fffa1d9..a1e53499 100644
--- a/include/GL/glfw3.h
+++ b/include/GL/glfw3.h
@@ -418,6 +418,7 @@ GLFWAPI void glfwCloseWindow(GLFWwindow window);
 GLFWAPI void glfwSetWindowTitle(GLFWwindow, const char* title);
 GLFWAPI void glfwGetWindowSize(GLFWwindow, int* width, int* height);
 GLFWAPI void glfwSetWindowSize(GLFWwindow, int width, int height);
+GLFWAPI void glfwGetWindowPos(GLFWwindow, int* x, int* y);
 GLFWAPI void glfwSetWindowPos(GLFWwindow, int x, int y);
 GLFWAPI void glfwIconifyWindow(GLFWwindow window);
 GLFWAPI void glfwRestoreWindow(GLFWwindow window);
diff --git a/readme.html b/readme.html
index 04c2b8a2..6bde1f76 100644
--- a/readme.html
+++ b/readme.html
@@ -267,6 +267,7 @@ version of GLFW.</p>
   <li>Added <code>glfwGetError</code> and <code>glfwErrorString</code> error reporting functions and a number of error tokens</li>
   <li>Added <code>glfwSetWindowUserPointer</code> and <code>glfwGetWindowUserPointer</code> functions for per-window user pointers</li>
   <li>Added <code>glfwGetVersionString</code> function for determining which code paths were enabled at compile time</li>
+  <li>Added <code>glfwGetWindowPos</code> function for querying the position of the specified window</li>
   <li>Added <code>windows</code> simple multi-window test program</li>
   <li>Added initial window title parameter to <code>glfwOpenWindow</code></li>
   <li>Changed buffer bit depth parameters of <code>glfwOpenWindow</code> to window hints</li>
diff --git a/src/internal.h b/src/internal.h
index 93499b19..cb19d5e2 100644
--- a/src/internal.h
+++ b/src/internal.h
@@ -157,6 +157,7 @@ typedef struct _GLFWwindow
     GLboolean iconified;       // GL_TRUE if this window is iconified
     GLboolean closed;          // GL_TRUE if this window should be closed
     int       width, height;
+    int       positionX, positionY;
     int       mode;            // GLFW_WINDOW or GLFW_FULLSCREEN
     GLboolean sysKeysDisabled; // system keys disabled flag
     GLboolean windowNoResize;  // resize- and maximize gadgets disabled flag
diff --git a/src/win32/win32_window.c b/src/win32/win32_window.c
index 30ba8145..3e158e6f 100644
--- a/src/win32/win32_window.c
+++ b/src/win32/win32_window.c
@@ -906,6 +906,9 @@ static LRESULT CALLBACK windowProc(HWND hWnd, UINT uMsg,
 
         case WM_MOVE:
         {
+            window->positionX = LOWORD(lParam);
+            window->positionY = HIWORD(lParam);
+
             // If the mouse is locked, update the clipping rect
             if (window == _glfwLibrary.cursorLockWindow)
             {
diff --git a/src/window.c b/src/window.c
index 3c89abd6..3d044c6a 100644
--- a/src/window.c
+++ b/src/window.c
@@ -807,6 +807,26 @@ GLFWAPI void glfwSetWindowSize(GLFWwindow window, int width, int height)
 }
 
 
+//========================================================================
+// Get the window position
+//========================================================================
+
+GLFWAPI void glfwGetWindowPos(GLFWwindow window, int* x, int* y)
+{
+    if (!_glfwInitialized)
+    {
+        _glfwSetError(GLFW_NOT_INITIALIZED);
+        return;
+    }
+
+    if (x != NULL)
+        *x = window->positionX;
+
+    if (y != NULL)
+        *y = window->positionY;
+}
+
+
 //========================================================================
 // Set the window position
 //========================================================================
diff --git a/src/x11/x11_window.c b/src/x11/x11_window.c
index 906f1ffc..2825d853 100644
--- a/src/x11/x11_window.c
+++ b/src/x11/x11_window.c
@@ -1215,6 +1215,14 @@ static void processSingleEvent(void)
                                                window->height);
                 }
             }
+
+            if (event.xconfigure.x != window->positionX ||
+                event.xconfigure.y != window->positionY)
+            {
+                window->positionX = event.xconfigure.x;
+                window->positionY = event.xconfigure.y;
+            }
+
             break;
         }