Add Mouse drag support.

This concludes the first 'release' :p.

2 files changed, 21 insertions, 2 deletions

diff --git a/src/safe_x11/mod.rs b/src/safe_x11/mod.rs
index 613424a..4a1e029 100644
--- a/src/safe_x11/mod.rs
+++ b/src/safe_x11/mod.rs
@@ -137,6 +137,14 @@ pub fn grab_button(display: *mut Display, button: u32, modifiers: u32,
     }
 }
 
+/// Unregister a combination of keys that will send a `XEvent`
+pub fn ungrab_button(display: *mut Display, button: u32, modifiers: u32) {
+    unsafe {
+        let default_win = xlib::XDefaultRootWindow(display);
+        xlib::XUngrabButton(display, button, modifiers, default_win);
+    }
+}
+
 /// Register a combination of keys that will send a `XEvent`
 ///
 pub fn grab_key(display: *mut Display, key: u32, modifiers: u32, owner_events: bool,
diff --git a/src/safe_x11/window.rs b/src/safe_x11/window.rs
index eac4dbd..6c483d9 100644
--- a/src/safe_x11/window.rs
+++ b/src/safe_x11/window.rs
@@ -41,6 +41,8 @@ pub struct XWindow {
     // The Application window.
     pub inner: Window,
     fullscreen: bool,
+    // Coordinates relative to the window where the cursor clicked on it.
+    pub cursor_coords: Option<(i32, i32)>,
     prev_attribs: XWindowAttributes,
 }
 
@@ -64,11 +66,11 @@ impl XWindow {
     pub fn new(d: *mut xlib::Display, w: Window) -> Option<XWindow> {
         if w != 0 {
             let attrs: XWindowAttributes = unsafe { uninitialized() };
-            println!("Window created!");
             Some(XWindow {
                 display: d,
                 inner: w,
                 fullscreen: false,
+                cursor_coords: None,
                 prev_attribs: attrs,
             })
         } else {
@@ -155,8 +157,9 @@ impl XWindow {
             let s = XDefaultScreenOfDisplay(self.display);
             ptr::read(s)
         };
+        let attrs = self.attributes();
         
-        if 0 > x && x <= screen.width || 0 > y && y <= screen.height {
+        if x < -attrs.width && x <= screen.width || -attrs.height > y && y <= screen.height {
             Err("Cannot move the window outside the screen!")
         } else {
             unsafe {
@@ -381,6 +384,14 @@ impl XWindow {
     }
 }
 
+use std::fmt;
+
+impl fmt::Display for XWindow {
+    fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+        write!(f, "Window({})", self.inner)
+    }
+}
+
 pub fn change_window_attributes(display: *mut xlib::Display, win: Window, mask: u64,
                                 window_attribs: *mut XSetWindowAttributes) {
     unsafe {