;; Common Lisp bindings for GTK+ v2.0
;; Copyright (C) 1999-2001 Espen S. Johnsen <esj@stud.cs.uit.no>
;;
;; This library is free software; you can redistribute it and/or
;; modify it under the terms of the GNU Lesser General Public
;; License as published by the Free Software Foundation; either
;; version 2 of the License, or (at your option) any later version.
;;
;; This library is distributed in the hope that it will be useful,
;; but WITHOUT ANY WARRANTY; without even the implied warranty of
;; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
;; Lesser General Public License for more details.
;;
;; You should have received a copy of the GNU Lesser General Public
;; License along with this library; if not, write to the Free Software
;; Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

;; $Id: gdk.lisp,v 1.11 2004-11-06 21:39:58 espen Exp $


(in-package "GDK")

;;; Initialization
 
(defbinding (gdk-init "gdk_parse_args") () nil
  "Initializes the library without opening the display."
  (nil null)
  (nil null))


;;; Display

(defbinding (display-manager "gdk_display_manager_get") () display-manager)


(defbinding (display-set-default "gdk_display_manager_set_default_display")
    (display) nil
  ((display-manager) display-manager)
  (display display))

(defbinding display-get-default () display)

(defbinding %display-open () display
  (display-name (or null string)))

(defun display-open (&optional display-name)
  (let ((display (%display-open display-name)))
    (unless (display-get-default)
      (display-set-default display))
    display))

(defbinding (display-connection-number "clg_gdk_connection_number")
    (&optional (display (display-get-default))) int
  (display display))


;;; Events

(defbinding (events-pending-p "gdk_events_pending") () boolean)

(defbinding event-get () event)

(defbinding event-peek () event)

(defbinding event-get-graphics-expose () event
  (window window))

(defbinding event-put () event
  (event event))

;(defbinding event-handler-set () ...)

(defbinding set-show-events () nil
  (show-events boolean))

;;; Misc

(defbinding set-use-xshm () nil
  (use-xshm boolean))

(defbinding get-show-events () boolean)

(defbinding get-use-xshm () boolean)

(defbinding get-display () string)

; (defbinding time-get () (unsigned 32))

; (defbinding timer-get () (unsigned 32))

; (defbinding timer-set () nil
;   (milliseconds (unsigned 32)))

; (defbinding timer-enable () nil)

; (defbinding timer-disable () nil)

; input ...

(defbinding pointer-grab () int
  (window window)
  (owner-events boolean)
  (event-mask event-mask)
  (confine-to (or null window))
  (cursor (or null cursor))
  (time (unsigned 32)))

(defbinding pointer-ungrab () nil
  (time (unsigned 32)))

(defbinding keyboard-grab () int
  (window window)
  (owner-events boolean)
  (time (unsigned 32)))

(defbinding keyboard-ungrab () nil
  (time (unsigned 32)))

(defbinding (pointer-is-grabbed-p "gdk_pointer_is_grabbed") () boolean)

(defbinding screen-width () int)
(defbinding screen-height () int)

(defbinding screen-width-mm () int)
(defbinding screen-height-mm () int)

(defbinding flush () nil)
(defbinding beep () nil)



;;; Visuals

(defbinding visual-get-best-depth () int)

(defbinding visual-get-best-type () visual-type)

(defbinding visual-get-system () visual)


(defbinding (%visual-get-best-with-nothing "gdk_visual_get_best") () visual)

(defbinding %visual-get-best-with-depth () visual
  (depth int))

(defbinding %visual-get-best-with-type () visual
  (type visual-type))

(defbinding %visual-get-best-with-both () visual
  (depth int)
  (type visual-type))

(defun visual-get-best (&key depth type)
  (cond
   ((and depth type) (%visual-get-best-with-both depth type))
   (depth (%visual-get-best-with-depth depth))
   (type (%visual-get-best-with-type type))
   (t (%visual-get-best-with-nothing))))

;(defbinding query-depths ..)

;(defbinding query-visual-types ..)

(defbinding list-visuals () (glist visual))


;;; Windows

; (defbinding window-new ... )

(defbinding window-destroy () nil
  (window window))


; (defbinding window-at-pointer () window
;   (window window)
;   (x int :in-out)
;   (y int :in-out))

(defbinding window-show () nil
  (window window))

(defbinding window-hide () nil
  (window window))

(defbinding window-withdraw () nil
  (window window))

(defbinding window-move () nil
  (window window)
  (x int)
  (y int))

(defbinding window-resize () nil
  (window window)
  (width int)
  (height int))

(defbinding window-move-resize () nil
  (window window)
  (x int)
  (y int)
  (width int)
  (height int))

(defbinding window-reparent () nil
  (window window)
  (new-parent window)
  (x int)
  (y int))

(defbinding window-clear () nil
  (window window))

(unexport
 '(window-clear-area-no-e window-clear-area-e))

(defbinding (window-clear-area-no-e "gdk_window_clear_area") () nil
  (window window)
  (x int) (y int) (width int) (height int))

(defbinding window-clear-area-e () nil
  (window window)
  (x int) (y int) (width int) (height int))

(defun window-clear-area (window x y width height &optional expose)
  (if expose
      (window-clear-area-e window x y width height)
    (window-clear-area-no-e window x y width height)))

; (defbinding window-copy-area () nil
;   (window window)
;   (gc gc)
;   (x int)
;   (y int)
;   (source-window window)
;   (source-x int)
;   (source-y int)
;   (width int)
;   (height int))

(defbinding window-raise () nil
  (window window))

(defbinding window-lower () nil
  (window window))

; (defbinding window-set-user-data () nil

(defbinding window-set-override-redirect () nil
  (window window)
  (override-redirect boolean))

; (defbinding window-add-filter () nil

; (defbinding window-remove-filter () nil

(defbinding window-shape-combine-mask () nil
  (window window)
  (shape-mask bitmap)
  (offset-x int)
  (offset-y int))

(defbinding window-set-child-shapes () nil
  (window window))

(defbinding window-merge-child-shapes () nil
  (window window))

(defbinding (window-is-visible-p "gdk_window_is_visible") () boolean
  (window window))

(defbinding (window-is-viewable-p "gdk_window_is_viewable") () boolean
  (window window))

(defbinding window-set-static-gravities () boolean
  (window window)
  (use-static boolean))

; (defbinding add-client-message-filter ...


;;; Drag and Drop

;; Destination side

(defbinding drag-status () nil
  (context drag-context)
  (action drag-action)
  (time (unsigned 32)))




(defbinding window-set-cursor () nil
  (window window)
  (cursor cursor))

(defbinding window-get-pointer () window
  (window window)
  (x int :out)
  (y int :out)
  (mask modifier-type :out))

(defbinding %get-default-root-window () window)

(defun get-root-window (&optional display)
  (if display
      (error "Not implemented")
    (%get-default-root-window)))


;;

(defbinding rgb-init () nil)




;;; Cursor

(defbinding cursor-new () cursor
  (cursor-type cursor-type))

(defbinding cursor-new-from-pixmap () cursor
  (source pixmap)
  (mask bitmap)
  (foreground color)
  (background color)
  (x int) (y int))

(defbinding %cursor-ref () pointer
  (location pointer))

(defbinding %cursor-unref () nil
  (location pointer))

(defmethod reference-foreign ((class (eql (find-class 'cursor))) location)
  (declare (ignore class))
  (%cursor-ref location))

(defmethod unreference-foreign ((class (eql (find-class 'cursor))) location)
  (declare (ignore class))
  (%cursor-unref location))




;;; Pixmaps

(defbinding pixmap-new (width height depth &key window) pixmap
  (width int)
  (height int)
  (depth int)
  (window (or null window)))
					
(defbinding %pixmap-colormap-create-from-xpm () pixmap
  (window (or null window))
  (colormap (or null colormap))
  (mask bitmap :out)
  (color (or null color))
  (filename string))

(defbinding %pixmap-colormap-create-from-xpm-d () pixmap
  (window (or null window))
  (colormap (or null colormap))
  (mask bitmap :out)
  (color (or null color))
  (data (vector string)))

(defun pixmap-create (source &key color window colormap)
  (let ((window
	 (if (not (or window colormap))
	     (get-root-window)
	   window)))
    (multiple-value-bind (pixmap mask)
        (etypecase source
	  ((or string pathname)
	   (%pixmap-colormap-create-from-xpm
	    window colormap color (namestring (truename source))))
 	  ((vector string)
	   (%pixmap-colormap-create-from-xpm-d window colormap color source)))
;;       (unreference-instance pixmap)
;;       (unreference-instance mask)
      (values pixmap mask))))



;;; Color

(defun %scale-value (value)
  (etypecase value
    (integer value)
    (float (truncate (* value 65535)))))

(defmethod initialize-instance ((color color) &rest initargs
				&key red green blue)
  (declare (ignore initargs))
  (call-next-method)
  (with-slots ((%red red) (%green green) (%blue blue)) color
    (setf
     %red (%scale-value red)
     %green (%scale-value green)
     %blue (%scale-value blue))))

(defun ensure-color (color)
  (etypecase color
    (null nil)
    (color color)
    (vector
     (make-instance
      'color :red (svref color 0) :green (svref color 1)
      :blue (svref color 2)))))
       

  
;;; Drawing functions

(defbinding draw-rectangle () nil
  (drawable (or window pixmap bitmap))
  (gc gc) (filled boolean)
  (x int) (y int) (width int) (height int))


;;; Key values

(defbinding keyval-name () string
  (keyval unsigned-int))

(defbinding keyval-from-name () unsigned-int
  (name string))

(defbinding keyval-to-upper () unsigned-int
  (keyval unsigned-int))

(defbinding keyval-to-lower ()unsigned-int
  (keyval unsigned-int))

(defbinding (keyval-is-upper-p "gdk_keyval_is_upper") () boolean
  (keyval unsigned-int))

(defbinding (keyval-is-lower-p "gdk_keyval_is_lower") () boolean
  (keyval unsigned-int))