From c61c33a833ebbf874885d3c48491f8307bffe68e Mon Sep 17 00:00:00 2001
From: Pierre Krieger <pierre.krieger1708@gmail.com>
Date: Tue, 10 Mar 2015 10:29:07 +0100
Subject: [PATCH] Add set_cursor_position function

---
 src/android/mod.rs    |  4 ++++
 src/cocoa/mod.rs      |  4 ++++
 src/win32/mod.rs      | 19 +++++++++++++++++++
 src/window.rs         |  5 +++++
 src/x11/window/mod.rs |  4 ++++
 5 files changed, 36 insertions(+)

diff --git a/src/android/mod.rs b/src/android/mod.rs
index 3c01b4c7..7979f097 100644
--- a/src/android/mod.rs
+++ b/src/android/mod.rs
@@ -356,6 +356,10 @@ impl Window {
     pub fn hidpi_factor(&self) -> f32 {
         1.0
     }
+
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
 }
 
 unsafe impl Send for Window {}
diff --git a/src/cocoa/mod.rs b/src/cocoa/mod.rs
index 334ec42e..ee3b03f6 100644
--- a/src/cocoa/mod.rs
+++ b/src/cocoa/mod.rs
@@ -664,4 +664,8 @@ impl Window {
             NSWindow::backingScaleFactor(self.window) as f32
         }
     }
+
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
 }
diff --git a/src/win32/mod.rs b/src/win32/mod.rs
index 8cb6d398..8ba5ed5f 100644
--- a/src/win32/mod.rs
+++ b/src/win32/mod.rs
@@ -255,6 +255,25 @@ impl Window {
     pub fn hidpi_factor(&self) -> f32 {
         1.0
     }
+
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        let mut point = winapi::POINT {
+            x: x,
+            y: y,
+        };
+
+        unsafe {
+            if user32::ClientToScreen(self.window.0, &mut point) == 0 {
+                return Err(());
+            }
+
+            if user32::SetCursorPos(point.x, point.y) == 0 {
+                return Err(());
+            }
+        }
+
+        Ok(())
+    }
 }
 
 pub struct PollEventsIterator<'a> {
diff --git a/src/window.rs b/src/window.rs
index 1bab245a..bd5fc14f 100644
--- a/src/window.rs
+++ b/src/window.rs
@@ -409,6 +409,11 @@ impl Window {
     pub fn hidpi_factor(&self) -> f32 {
         self.window.hidpi_factor()
     }
+
+    /// Changes the position of the cursor in window coordinates.
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        self.window.set_cursor_position(x, y)
+    }
 }
 
 impl gl_common::GlFunctionsSource for Window {
diff --git a/src/x11/window/mod.rs b/src/x11/window/mod.rs
index 404324a0..7845d078 100644
--- a/src/x11/window/mod.rs
+++ b/src/x11/window/mod.rs
@@ -785,4 +785,8 @@ impl Window {
     pub fn hidpi_factor(&self) -> f32 {
         1.0
     }
+
+    pub fn set_cursor_position(&self, x: i32, y: i32) -> Result<(), ()> {
+        unimplemented!();
+    }
 }