;; Common Lisp bindings for GTK+ v2.x
;; Copyright 2004-2005 Espen S. Johnsen <espen@users.sf.net>
;;
;; Permission is hereby granted, free of charge, to any person obtaining
;; a copy of this software and associated documentation files (the
;; "Software"), to deal in the Software without restriction, including
;; without limitation the rights to use, copy, modify, merge, publish,
;; distribute, sublicense, and/or sell copies of the Software, and to
;; permit persons to whom the Software is furnished to do so, subject to
;; the following conditions:
;;
;; The above copyright notice and this permission notice shall be
;; included in all copies or substantial portions of the Software.
;;
;; THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
;; EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
;; MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
;; IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
;; CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
;; TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
;; SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

;; $Id: gtktree.lisp,v 1.14 2006-02-09 22:32:47 espen Exp $


(in-package "GTK")


;;;; Cell Layout

(defbinding cell-layout-pack-start () nil
  (cell-layout cell-layout)
  (cell cell-renderer)
  (expand boolean))

(defbinding cell-layout-pack-end () nil
  (cell-layout cell-layout)
  (cell cell-renderer)
  (expand boolean))

(defun cell-layout-pack (layout cell &key end expand)
  (if end
      (cell-layout-pack-end layout cell expand)
    (cell-layout-pack-start layout cell expand)))


(defbinding cell-layout-reorder () nil
  (cell-layout cell-layout)
  (cell cell-renderer)
  (position int))

(defbinding cell-layout-clear () nil
  (cell-layout cell-layout))

(defbinding cell-layout-add-attribute (cell-layout cell attribute column) nil
  (cell-layout cell-layout)
  (cell cell-renderer)
  ((string-downcase attribute) string)
  (column int))

(def-callback-marshal %cell-layout-data-func 
    (nil cell-layout cell-renderer tree-model (copy-of tree-iter)))

(defbinding cell-layout-set-cell-data-func (cell-layout cell function) nil
  (cell-layout cell-layout)
  (cell cell-renderer)
  (%cell-layout-data-func callback)
  ((register-callback-function function) unsigned-int)
  (user-data-destroy-func callback))

(defbinding cell-layout-clear-attributes () nil
  (cell-layout cell-layout)
  (cell cell-renderer))



;;;; List Store

(defmethod initialize-instance ((list-store list-store) &key column-types
				column-names initial-content)
  (call-next-method)
  (%list-store-set-column-types list-store column-types)
  (when column-names
    (setf (object-data list-store 'column-names) column-names))
  (when initial-content
    (loop
     with iter = (make-instance 'tree-iter)
     for row in initial-content
     do (list-store-append list-store row iter))))


(defmethod column-setter-name ((list-store list-store))
  (declare (ignore list-store))
  "gtk_list_store_set")

(defbinding %list-store-set-column-types () nil
  (list-store list-store)
  ((length columns) unsigned-int)
  (columns (vector gtype)))

(defbinding %list-store-remove () boolean
  (list-store list-store)
  (tree-iter tree-iter))

(defun list-store-remove (store row)
  (etypecase row
    (tree-iter 
     (%list-store-remove store row))
    (tree-path 
     (multiple-value-bind (valid iter) (tree-model-get-iter store row)
       (if valid
	   (%list-store-remove store iter)
	   (error "~A not poiniting to a valid iterator in ~A" row store))))
    (tree-row-reference 
     (let ((path (tree-row-reference-get-path row)))
       (if path
	   (list-store-remove store path)
	 (error "~A not valid" row))))))


(defbinding %list-store-insert () nil
  (list-store list-store)
  (tree-iter tree-iter)
  (position int))

(defun list-store-insert
    (store position &optional data (iter (make-instance 'tree-iter)))
  (%list-store-insert store iter position)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %list-store-insert-before () nil
  (list-store list-store)
  (tree-iter tree-iter)
  (sibling (or null tree-iter)))

(defun list-store-insert-before
    (store sibling &optional data (iter (make-instance 'tree-iter)))
  (%list-store-insert-before store iter sibling)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %list-store-insert-after 
    (list-store &optional sibling (tree-iter (make-instance 'tree-iter))) nil
  (list-store list-store)
  (tree-iter tree-iter)
  (sibling (or null tree-iter)))

(defun list-store-insert-after
    (store sibling &optional data (iter (make-instance 'tree-iter)))
  (%list-store-insert-after store iter sibling)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %list-store-prepend () nil
  (list-store list-store)
  (tree-iter tree-iter))

(defun list-store-prepend 
    (store &optional data (iter (make-instance 'tree-iter)))
  (%list-store-prepend store iter)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %list-store-append () nil
  (list-store list-store)
  (tree-iter tree-iter))

(defun list-store-append 
    (store &optional data (iter (make-instance 'tree-iter)))
  (%list-store-append store iter)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding list-store-clear () nil
  (list-store list-store))

(defbinding list-store-reorder () nil
  (list-store list-store)
  (new-order (vector int)))

(defbinding list-store-swap () nil
  (list-store list-store)
  (a tree-iter)
  (b tree-iter))

(defbinding list-store-move-before () nil
  (list-store list-store)
  (iter tree-iter)
  (psoition (or null tree-iter)))

(defbinding list-store-move-after () nil
  (list-store list-store)
  (iter tree-iter)
  (psoition tree-iter))


;;; Tree Model

(defbinding %tree-path-free () nil
  (location pointer))

(defbinding %tree-path-get-indices () pointer
  (location pointer))

(defbinding %tree-path-get-depth () int
  (location pointer))

(defun %make-tree-path (path)
  (let ((c-vector (make-c-vector 'int (length path) path))
	(location (allocate-memory (+ (size-of 'int) (size-of 'pointer)))))
    (funcall (writer-function 'int) (length path) location)
    (funcall (writer-function 'pointer) c-vector location (size-of 'int))
    location))

(defun %tree-path-to-vector (location)
  (let ((indices (%tree-path-get-indices location))
	(depth (%tree-path-get-depth location)))
    (if (null-pointer-p indices)
	#()
      (map-c-vector 'vector #'identity indices 'int depth))))

(eval-when (:compile-toplevel :load-toplevel :execute)
  (defmethod alien-type ((type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    (alien-type 'pointer))
  
  (defmethod size-of ((type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    (size-of 'pointer))
  
  (defmethod to-alien-form (path (type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    `(%make-tree-path ,path))
  
  (defmethod from-alien-form (location (type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    `(let ((location ,location))
       (prog1
           (%tree-path-to-vector location)
	 (%tree-path-free location))))
  
  (defmethod copy-from-alien-form (location (type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    `(%tree-path-to-vector ,location))
  
  (defmethod cleanup-form (location (type (eql 'tree-path)) &rest args)
    (declare (ignore type args))
    `(%tree-path-free ,location)))

(defmethod to-alien-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  #'%make-tree-path)
  
(defmethod from-alien-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  #'(lambda (location)
      (prog1
	  (%tree-path-to-vector location)
	(%tree-path-free location))))

(defmethod copy-from-alien-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  #'%tree-path-to-vector)
  
(defmethod cleanup-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  #'%tree-path-free)

(defmethod writer-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  (let ((writer (writer-function 'pointer)))
    #'(lambda (path location &optional (offset 0))
	(funcall writer (%make-tree-path path) location offset))))

(defmethod reader-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  (let ((reader (reader-function 'pointer)))
    #'(lambda (location &optional (offset 0) weak-p)
	(declare (ignore weak-p))
	(%tree-path-to-vector (funcall reader location offset)))))

(defmethod destroy-function ((type (eql 'tree-path)) &rest args)
  (declare (ignore type args))
  (let ((reader (reader-function 'pointer)))
    #'(lambda (location &optional (offset 0))
	(%tree-path-free (funcall reader location offset)))))


(defbinding %tree-row-reference-new () pointer
  (model tree-model)
  (path tree-path))

(defmethod allocate-foreign ((reference tree-row-reference) &key model path)
  (%tree-row-reference-new model path))

(defbinding tree-row-reference-get-path () tree-path
  (reference tree-row-reference))

(defbinding (tree-row-reference-valid-p "gtk_tree_row_reference_valid") () boolean
  (reference tree-row-reference))


(defbinding tree-model-get-column-type () gtype ;type-number
  (tree-model tree-model)
  (index int))

(defbinding tree-model-get-iter 
    (model path &optional (iter (make-instance 'tree-iter))) boolean
  (model tree-model)
  (iter tree-iter :return)
  (path tree-path))
 
(defbinding tree-model-get-path () tree-path
  (tree-model tree-model)
  (iter tree-iter))

(defbinding %tree-model-get-value () nil
  (tree-model tree-model)
  (iter tree-iter)
  (column int)
  (gvalue gvalue))

(defun tree-model-value (model row column)
  (let ((index (column-index model column))
	(iter (etypecase row
		(tree-iter row)
		(tree-path (multiple-value-bind (valid iter)
			       (tree-model-get-iter model row)
			     (if valid
				 iter
			       (error "Invalid tree path: ~A" row)))))))
    (with-gvalue (gvalue)
      (%tree-model-get-value model iter index gvalue))))

(defbinding tree-model-iter-next () boolean
  (tree-model tree-model)
  (iter tree-iter :return))

(defbinding tree-model-iter-children 
    (tree-model parent &optional (iter (make-instance 'tree-iter))) boolean
  (tree-model tree-model)
  (iter tree-iter :return)
  (parent (or null tree-iter)))

(defbinding (tree-model-iter-has-child-p "gtk_tree_model_iter_has_child") 
    () boolean
  (tree-model tree-model)
  (iter tree-iter))

(defbinding tree-model-iter-n-children () int
  (tree-model tree-model)
  (iter tree-iter))

(defbinding tree-model-iter-nth-child
    (tree-model parent n &optional (iter (make-instance 'tree-iter))) boolean
  (tree-model tree-model)
  (iter tree-iter :return)
  (parent (or null tree-iter))
  (n int))

(defbinding tree-model-iter-parent
    (tree-model child &optional (iter (make-instance 'tree-iter))) boolean
  (tree-model tree-model)
  (iter tree-iter :return)
  (child tree-iter))

(def-callback-marshal %tree-model-foreach-func 
  (boolean tree-model (path (copy-of tree-path)) (iter (copy-of tree-iter))))

(defbinding %tree-model-foreach () nil
  (tree-model tree-model)
  ((progn %tree-model-foreach-func) callback)
  (callback-id unsigned-int))

(defun tree-model-foreach (model function)
  (with-callback-function (id function)
    (%tree-model-foreach model id)))

(defbinding tree-model-row-changed () nil
  (tree-model tree-model)
  (path tree-path)
  (iter tree-iter))

(defbinding tree-model-row-inserted () nil
  (tree-model tree-model)
  (path tree-path)
  (iter tree-iter))

(defbinding tree-model-row-has-child-toggled () nil
  (tree-model tree-model)
  (path tree-path)
  (iter tree-iter))

(defbinding tree-model-row-deleted () nil
  (tree-model tree-model)
  (path tree-path)
  (iter tree-iter))

(defbinding tree-model-rows-reordered () nil
  (tree-model tree-model)
  (path tree-path)
  (iter tree-iter)
  (new-order int))


(defun column-types (model columns)
  (map 'vector 
       #'(lambda (column)
	   (find-type-number (first (mklist column))))
       columns))
	       
(defun column-index (model column)
  (or
   (etypecase column
     (number column)
     (symbol (position column (object-data model 'column-names)))
     (string (position column (object-data model 'column-names)
		   :test #'string=)))
   (error "~A has no column ~S" model column)))

(defun column-name (model index)
  (svref (object-data model 'column-names) index))

(defun tree-model-column-value-setter (model column)
  (let ((setters (or
		  (object-data model 'column-setters)
		  (setf 
		   (object-data model 'column-setters)
		   (make-array (tree-model-n-columns model) 
		    :initial-element nil)))))
    (let ((index (column-index model column)))
    (or
     (svref setters index)
     (setf 
      (svref setters index)
      (let ((setter 
	     (mkbinding (column-setter-name model)
	      nil (type-of model) 'tree-iter 'int
;	      (type-from-number (tree-model-get-column-type model index))
	      (tree-model-get-column-type model index)
	      'int)))
	#'(lambda (value iter)
	    (funcall setter model iter index value -1))))))))

(defun tree-model-row-setter (model)
  (or 
   (object-data model 'row-setter)
   (progn
     ;; This will create any missing column setter
     (loop 
      for i from 0 below (tree-model-n-columns model)
      do (tree-model-column-value-setter model i))
     (let ((setters (object-data model 'column-setters)))
       (setf    
	(object-data model 'row-setter)
	#'(lambda (row iter)
	    (map nil #'(lambda (value setter)
			 (funcall setter value iter))
		 row setters)))))))

(defun (setf tree-model-value) (value model row column)
  (let ((iter (etypecase row
		(tree-iter row)
		(tree-path (multiple-value-bind (valid iter)
			       (tree-model-get-iter model row)
			     (if valid
				 iter
			       (error "Invalid tree path: ~A" row)))))))
    (funcall (tree-model-column-value-setter model column) value iter)
    value))

(defun (setf tree-model-row-data) (data model iter)
  (funcall (tree-model-row-setter model) data iter)
  data)

(defun %tree-model-set (model iter data)
  (etypecase data
    (vector (setf (tree-model-row-data model iter) data))
    (cons 
     (loop
      as (column value . rest) = data then rest
      do (setf (tree-model-value model iter column) value)
      while rest))))


;;; Tree Selection

(def-callback-marshal %tree-selection-func (boolean tree-selection tree-model (path (copy-of tree-path)) (path-currently-selected boolean)))

(defbinding tree-selection-set-select-function (selection function) nil
  (selection tree-selection)
  (%tree-selection-func callback)
  ((register-callback-function function) unsigned-int)
  (user-data-destroy-func callback))

(defbinding tree-selection-get-selected 
    (selection &optional (iter (make-instance 'tree-iter))) boolean
  (selection tree-selection)
  (nil null) 
  (iter tree-iter :return))

(def-callback-marshal %tree-selection-foreach-func (nil tree-model (path (copy-of tree-path)) (iter (copy-of tree-iter))))

(defbinding %tree-selection-selected-foreach () nil
  (tree-selection tree-selection)
  ((progn %tree-selection-foreach-func) callback)
  (callback-id unsigned-int))

(defun tree-selection-selected-foreach (selection function)
  (with-callback-function (id function)
    (%tree-selection-selected-foreach selection id)))

(defbinding tree-selection-get-selected-rows () (glist tree-path)
  (tree-selection tree-selection)
  (nil null))

(defbinding tree-selection-count-selected-rows () int
  (tree-selection tree-selection))

(defbinding %tree-selection-select-path () nil
  (tree-selection tree-selection)
  (tree-path tree-path))

(defbinding %tree-selection-unselect-path () nil
  (tree-selection tree-selection)
  (tree-path tree-path))

(defbinding %tree-selection-path-is-selected () boolean
  (tree-selection tree-selection)
  (tree-path tree-path))

(defbinding %tree-selection-select-iter () nil
  (tree-selection tree-selection)
  (tree-path tree-path))

(defbinding %tree-selection-unselect-iter () nil
  (tree-selection tree-selection)
  (tree-path tree-path))

(defbinding %tree-selection-iter-is-selected () boolean
  (tree-selection tree-selection)
  (tree-path tree-path))

(defun tree-selection-select (selection row)
  (etypecase row
    (tree-path (%tree-selection-select-path selection row))
    (tree-iter (%tree-selection-select-iter selection row))))

(defun tree-selection-unselect (selection row)
  (etypecase row
    (tree-path (%tree-selection-unselect-path selection row))
    (tree-iter (%tree-selection-unselect-iter selection row))))

(defun tree-selection-is-selected-p (selection row)
  (etypecase row
    (tree-path (%tree-selection-path-is-selected selection row))
    (tree-iter (%tree-selection-iter-is-selected selection row))))

(defbinding tree-selection-select-all () nil
  (tree-selection tree-selection))

(defbinding tree-selection-unselect-all () nil
  (tree-selection tree-selection))

(defbinding tree-selection-select-range () nil
  (tree-selection tree-selection)
  (start tree-path)
  (end tree-path))

(defbinding tree-selection-unselect-range () nil
  (tree-selection tree-selection)
  (start tree-path)
  (end tree-path))


;;; Tree Sortable

(eval-when (:compile-toplevel :load-toplevel :execute)
  (define-enum-type sort-column (:default -1) (:unsorted -2))
  (define-enum-type sort-order (:before -1) (:equal 0) (:after 1)))


(def-callback-marshal %tree-iter-compare-func 
  ((or int sort-order) tree-model (a (copy-of tree-iter)) (b (copy-of tree-iter))))

(defbinding tree-sortable-sort-column-changed () nil
  (sortable tree-sortable))

(defbinding %tree-sortable-get-sort-column-id () boolean
  (sortable tree-sortable)
  (column int :out)
  (order sort-type :out))

(defun tree-sortable-get-sort-column (sortable)
  (multiple-value-bind (special-p column order) 
      (%tree-sortable-get-sort-column-id sortable)
    (values
     (if special-p
	 (int-to-sort-order column)
       (column-name sortable column))
     order)))

(defbinding (tree-sortable-set-sort-column 
	     "gtk_tree_sortable_set_sort_column_id") 
    (sortable column order) nil
  (sortable tree-sortable)
  ((etypecase column
     ((or integer sort-column) column)
     (symbol (column-index sortable column))) 
   (or sort-column int))
  (order sort-type))

(defbinding %tree-sortable-set-sort-func (sortable column function) nil
  (sortable tree-sortable)
  ((column-index sortable column) int)
  (%tree-iter-compare-func callback)
  ((register-callback-function function) unsigned-int)
  (user-data-destroy-func callback))

(defbinding %tree-sortable-set-default-sort-func () nil
  (sortable tree-sortable)
  (compare-func (or null pointer))
  (callback-id unsigned-int)
  (destroy-func (or null pointer)))

(defun tree-sortable-set-sort-func (sortable column function)
  "Sets the comparison function used when sorting to be FUNCTION. If
the current sort column of SORTABLE is the same as COLUMN,
then the model will sort using this function."
  (cond
   ((and (eq column :default) (not function))
    (%tree-sortable-set-default-sort-func sortable nil 0 nil))
   ((eq column :default) 
    (%tree-sortable-set-default-sort-func sortable 
     (callback %tree-iter-compare-func)
     (register-callback-function function)
     (callback user-data-destroy-func)))
   ((%tree-sortable-set-sort-func sortable column function))))

(defbinding tree-sortable-has-default-sort-func-p () boolean
  (sortable tree-sortable))


;;; Tree Store

(defbinding %tree-store-set-column-types () nil
  (tree-store tree-store)
  ((length columns) unsigned-int)
  (columns (vector gtype)))

(defmethod initialize-instance ((tree-store tree-store) &key column-types
				column-names)
  (call-next-method)
  (%tree-store-set-column-types tree-store column-types)
  (when column-names
    (setf (object-data tree-store 'column-names) column-names)))

(defmethod column-setter-name ((tree-store tree-store))
  (declare (ignore tree-store))
  "gtk_tree_store_set")

(defbinding tree-store-remove () boolean
  (tree-store tree-store)
  (tree-iter tree-iter))

(defbinding %tree-store-insert () nil
  (tree-store tree-store)
  (tree-iter tree-iter)
  (parent (or null tree-iter))
  (position int))

(defun tree-store-insert 
    (store parent position &optional data (iter (make-instance 'tree-iter)))
  (%tree-store-insert store iter parent position)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %tree-store-insert-before () nil
  (tree-store tree-store)
  (tree-iter tree-iter)
  (parent (or null tree-iter))
  (sibling (or null tree-iter)))

(defun tree-store-insert-before 
    (store parent sibling &optional data (iter (make-instance 'tree-iter)))
  (%tree-store-insert-before store iter parent sibling)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %tree-store-insert-after () nil
  (tree-store tree-store)
  (tree-iter tree-iter)
  (parent (or null tree-iter))
  (sibling (or null tree-iter)))

(defun tree-store-insert-after 
    (store parent sibling &optional data (iter (make-instance 'tree-iter)))
  (%tree-store-insert-after store iter parent sibling)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %tree-store-prepend () nil
  (tree-store tree-store)
  (tree-iter tree-iter)
  (parent (or null tree-iter)))

(defun tree-store-prepend 
    (store parent &optional data (iter (make-instance 'tree-iter)))
  (%tree-store-prepend store iter parent)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding %tree-store-append () nil
  (tree-store tree-store)
  (tree-iter tree-iter)
  (parent (or null tree-iter)))

(defun tree-store-append 
    (store parent &optional data (iter (make-instance 'tree-iter)))
  (%tree-store-append store iter parent)
  (when data (%tree-model-set store iter data))
  iter)

(defbinding (tree-store-is-ancestor-p "gtk_tree_store_is_ancestor") () boolean
  (tree-store tree-store)
  (tree-iter tree-iter)
  (descendant tree-iter))

(defbinding tree-store-iter-depth () int
  (tree-store tree-store)
  (tree-iter tree-iter))

(defbinding tree-store-clear () nil
  (tree-store tree-store))

(defbinding tree-store-reorder () nil
  (tree-store tree-store)
  (parent tree-iter)
  (new-order (vector int)))

(defbinding tree-store-swap () nil
  (tree-store tree-store)
  (a tree-iter)
  (b tree-iter))

(defbinding tree-store-move-before () nil
  (tree-store tree-store)
  (iter tree-iter)
  (psoition (or null tree-iter)))


(defbinding tree-store-move-after () nil
  (tree-store tree-store)
  (iter tree-iter)
  (psoition tree-iter))



;;; Tree View

(defmethod initialize-instance ((tree-view tree-view) &rest initargs 
				&key column)
  (call-next-method)
  (mapc #'(lambda (column)
	    (tree-view-append-column tree-view column))
	(get-all initargs :column)))


(defbinding tree-view-columns-autosize () nil
  (tree-view tree-view))

(defbinding tree-view-append-column () int
  (tree-view tree-view)
  (tree-view-column tree-view-column))

(defbinding tree-view-remove-column () int
  (tree-view tree-view)
  (tree-view-column tree-view-column))

(defbinding tree-view-insert-column (view column position) int
  (view tree-view)
  (column tree-view-column)
  ((if (eq position :end) -1 position) int))

(defbinding tree-view-get-column () tree-view-column
  (tree-view tree-view)
  (position int))

(defbinding tree-view-move-column-after () nil
  (tree-view tree-view)
  (column tree-view-column)
  (base-column (or null tree-view-column)))

;;(defbinding tree-view-set-column drag-function ...)

(defbinding tree-view-scroll-to-point () nil
  (tree-view tree-view)
  (tree-x int)
  (tree-y int))

(defbinding tree-view-scroll-to-cell () nil
  (tree-view tree-view)
  (path (or null tree-path))
  (column (or null tree-view-column))
  (use-align boolean)
  (row-align single-float)
  (col-align single-float))

(defbinding tree-view-set-cursor () nil
  (tree-view tree-view)
  (path tree-path)
  (focus-column tree-view-column)
  (start-editing boolean))

(defbinding tree-view-set-cursor-on-cell () nil
  (tree-view tree-view)
  (path tree-path)
  (focus-column (or null tree-view-column))
  (focus-cell (or null cell-renderer))
  (start-editing boolean))

(defbinding tree-view-get-cursor () nil
  (tree-view tree-view)
  (path tree-path :out )
  (focus-column tree-view-column :out))

(defbinding tree-view-row-activated () nil
  (tree-view tree-view)
  (path tree-path )
  (column tree-view-column))

(defbinding tree-view-expand-all () nil
  (tree-view tree-view))

(defbinding tree-view-collapse-all () nil
  (tree-view tree-view))

(defbinding tree-view-expand-to-path () nil
  (tree-view tree-view)
  (path tree-path))

(defbinding tree-view-expand-row () nil
  (tree-view tree-view)
  (path tree-path)
  (open-all boolean))

(defbinding tree-view-collapse-row () nil
  (tree-view tree-view)
  (path tree-path))

(def-callback-marshal %tree-view-mapping-func (nil tree-view (path (copy-of tree-path))))

(defbinding %tree-view-map-expanded-rows () nil
  (tree-view tree-view)
  ((progn %tree-view-mapping-func) callback)
  (callback-id unsigned-int))

(defun map-expanded-rows (function tree-view)
  (with-callback-function (id function)
    (%tree-view-map-expanded-rows tree-view id)))

(defbinding (tree-view-row-expanded-p "gtk_tree_view_row_expanded") () boolean
  (tree-view tree-view)
  (path tree-path))

(defbinding tree-view-get-path-at-pos 
    (tree-view x y &optional (cell-x 0) (cell-y 0)) boolean
  (tree-view tree-view)
  (x int)
  (y int)
  (path tree-path :out)
  (column tree-view-column :out)
  (cell-x int)
  (cell-y int))

(defbinding tree-view-get-cell-area () nil
  (tree-view tree-view)
  (path (or null tree-path))
  (column (or null tree-view-column))
  ((make-instance 'gdk:rectangle) gdk:rectangle :return))

(defbinding tree-view-get-background-area () nil
  (tree-view tree-view)
  (path (or null tree-path))
  (column (or null tree-view-column))
  ((make-instance 'gdk:rectangle) gdk:rectangle :return))

(defbinding tree-view-get-visible-rect () nil
  (tree-view tree-view)
  ((make-instance 'gdk:rectangle) gdk:rectangle :return))

;; and many more functions which we'll add later


;;;; Icon View

#+gtk2.6
(progn
  (defbinding icon-view-get-path-at-pos () tree-path
    (icon-view icon-view)
    (x int) (y int))

  (def-callback-marshal %icon-view-foreach-func 
    (nil icon-view (path (copy-of tree-path))))

  (defbinding %icon-view-selected-foreach () tree-path
    (icon-view icon-view)
    ((progn %icon-view-foreach-func) callback)
    (callback-id unsigned-int))
  
  (defun icon-view-foreach (icon-view function)
    (with-callback-function (id function)
      (%icon-view-selected-foreach icon-view id)))

  (defbinding icon-view-select-path () nil
    (icon-view icon-view)
    (path tree-path))

  (defbinding icon-view-unselect-path () nil
    (icon-view icon-view)
    (path tree-path))

  (defbinding icon-view-path-is-selected-p () boolean
    (icon-view icon-view)
    (path tree-path))

  (defbinding icon-view-get-selected-items () (glist tree-path)
    (icon-view icon-view))

  (defbinding icon-view-select-all () nil
    (icon-view icon-view))

  (defbinding icon-view-unselect-all () nil
    (icon-view icon-view))
  
  (defbinding icon-view-item-activated () nil
    (icon-view icon-view)
    (path tree-path))

  (defbinding %icon-view-set-text-column (column icon-view) nil
    (icon-view icon-view)
    ((if (integerp column) 
	 column 
       (column-index (icon-view-model icon-view) column)) int))

  (defbinding %icon-view-set-markup-column (column icon-view) nil
    (icon-view icon-view)
    ((if (integerp column) 
	 column 
       (column-index (icon-view-model icon-view) column)) int))

  (defbinding %icon-view-set-pixbuf-column (column icon-view) nil
    (icon-view icon-view)
    ((if (integerp column) 
	 column 
       (column-index (icon-view-model icon-view) column)) int)))

#+gtk2.8
(progn
  (defbinding icon-view-get-item-at-pos () boolean
    (icon-view icon-view)
    (x int)
    (y int)
    (tree-path tree-path :out)
    (cell cell-renderer :out))

  (defbinding icon-view-set-cursor (icon-view path &key cell start-editing) nil
    (icon-view icon-view)
    (path tree-path)
    (cell (or null cell-renderer))
    (start-editing boolean))
  
  (defbinding icon-view-get-cursor () boolean
    (icon-view icon-view)
    (path tree-path :out)
    (cell cell-renderer :out))

  (defbinding icon-view-get-dest-item-at-pos () boolean
    (icon-view icon-view)
    (drag-x int)
    (drag-y int)
    (tree-path tree-path :out)
    (pos drop-position :out))

  (defbinding icon-view-create-drag-icon () gdk:pixmap
    (icon-view icon-view)
    (tree-path tree-path))

  (defbinding icon-view-scroll-to-path (icon-view tree-path &key row-align column-align) nil
    (icon-view icon-view)
    (tree-path tree-path)
    ((or row-align column-align) boolean)
    (row-align single-float)
    (column-align single-float))

  (defbinding icon-view-get-visible-range () boolean
    (icon-view icon-view)
    (start-path tree-path :out)
    (end-path tree-path :out))

;;   (defbinding icon-view-enable-model-drag-source () nil
;;     (icon-view icon-view)
;;     (start-button-mask gdk:modifier-type)
;;     (targets (vector target-entry))
;;     ((length targets) unsigned-int)
;;     (actions gdk:drag-action))

;;   (defbinding icon-view-enable-model-drag-dest () nil
;;     (icon-view icon-view)
;;     (targets (vector target-entry))
;;     ((length targets) unsigned-int)
;;     (actions gdk:drag-action))

  (defbinding icon-view-unset-model-drag-source () nil
    (icon-view icon-view))

  (defbinding icon-view-unset-model-drag-dest () nil
    (icon-view icon-view)))