   Copyright ( c )   , 2012 . All rights reserved .

;   The use and distribution terms for this software are covered by the
;   Eclipse Public License 1.0 (-1.0.php)
;   which can be found in the file epl-v10.html at the root of this
;   distribution.
;   By using this software in any fashion, you are agreeing to be bound by
;   the terms of this license.
;   You must not remove this notice, or any other, from this software.

(ns ^{:doc "Functions for dealing with the mouse."
      :author "Dave Ray"}
  seesaw.mouse
  (:use [seesaw.util :only [illegal-argument]]))

(defn- ^java.awt.PointerInfo info [] (java.awt.MouseInfo/getPointerInfo))

(defn location
  "Returns the [x y] location of the mouse.

  If given no arguments, returns full screen coordinates.

  If given a MouseEvent object returns the mouse location from the event.

  "
  ([] (let [p (.getLocation (info))]
        [(.x p) (.y p)]))
  ([v]
   (cond
     (instance? java.awt.event.MouseEvent v)
        (let [^java.awt.event.MouseEvent e v]
          [(.getX e) (.getY e)])
     :else (illegal-argument "Don't know how to get mouse location from %s" v))))

(def ^ {:private true} input-modifier-table
  {:left java.awt.event.InputEvent/BUTTON1_DOWN_MASK
    :center java.awt.event.InputEvent/BUTTON2_DOWN_MASK
   :right java.awt.event.InputEvent/BUTTON3_DOWN_MASK})

(def ^ {:private true} mouse-button-table
  {java.awt.event.MouseEvent/BUTTON1 :left
   java.awt.event.MouseEvent/BUTTON2 :center
   java.awt.event.MouseEvent/BUTTON3 :right
   java.awt.event.MouseEvent/NOBUTTON nil })

(defn button-down?
  "Returns true if the given button is currently down in the given mouse
  event.

  Examples:

    (button-down? event :left)
  "
  [^java.awt.event.InputEvent e btn]
  (let [mask (input-modifier-table btn 0)]
    (not= 0 (bit-and mask (.getModifiersEx e)))))

(defn button
  "Return the affected button in a mouse event.

  Returns :left, :center, :right, or nil."
  [^java.awt.event.MouseEvent e]
  (mouse-button-table (.getButton e)))


   The use and distribution terms for this software are covered by the
   Eclipse Public License 1.0 (-1.0.php)
   which can be found in the file epl-v10.html at the root of this
   distribution.
   By using this software in any fashion, you are agreeing to be bound by
   the terms of this license.
   You must not remove this notice, or any other, from this software.
   Copyright ( c )   , 2012 . All rights reserved .


(ns ^{:doc "Functions for dealing with the mouse."
      :author "Dave Ray"}
  seesaw.mouse
  (:use [seesaw.util :only [illegal-argument]]))

(defn- ^java.awt.PointerInfo info [] (java.awt.MouseInfo/getPointerInfo))

(defn location
  "Returns the [x y] location of the mouse.

  If given no arguments, returns full screen coordinates.

  If given a MouseEvent object returns the mouse location from the event.

  "
  ([] (let [p (.getLocation (info))]
        [(.x p) (.y p)]))
  ([v]
   (cond
     (instance? java.awt.event.MouseEvent v)
        (let [^java.awt.event.MouseEvent e v]
          [(.getX e) (.getY e)])
     :else (illegal-argument "Don't know how to get mouse location from %s" v))))

(def ^ {:private true} input-modifier-table
  {:left java.awt.event.InputEvent/BUTTON1_DOWN_MASK
    :center java.awt.event.InputEvent/BUTTON2_DOWN_MASK
   :right java.awt.event.InputEvent/BUTTON3_DOWN_MASK})

(def ^ {:private true} mouse-button-table
  {java.awt.event.MouseEvent/BUTTON1 :left
   java.awt.event.MouseEvent/BUTTON2 :center
   java.awt.event.MouseEvent/BUTTON3 :right
   java.awt.event.MouseEvent/NOBUTTON nil })

(defn button-down?
  "Returns true if the given button is currently down in the given mouse
  event.

  Examples:

    (button-down? event :left)
  "
  [^java.awt.event.InputEvent e btn]
  (let [mask (input-modifier-table btn 0)]
    (not= 0 (bit-and mask (.getModifiersEx e)))))

(defn button
  "Return the affected button in a mouse event.

  Returns :left, :center, :right, or nil."
  [^java.awt.event.MouseEvent e]
  (mouse-button-table (.getButton e)))

