/********************************************************************************
*                                                                               *
*                        D o c k B a r   W i d g e t                            *
*                                                                               *
*********************************************************************************
* Copyright (C) 2004,2017 by Jeroen van der Zijp.   All Rights Reserved.        *
*********************************************************************************
* 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 3 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 program.  If not, see <http://www.gnu.org/licenses/>          *
********************************************************************************/
#ifndef FXDOCKBAR_H
#define FXDOCKBAR_H

#ifndef FXPACKER_H
#include "FXPacker.h"
#endif

namespace FX {


class FXDockSite;


/**
* A dock bar widget can be docked inside a dock site widget, or floated
* around freely.  Users can move, undock, and dock the dock bar widget
* by means of a handle such as a tool bar grip.  When docking, the dock
* bar sends a SEL_DOCKED message to its target; when undocking, it sends
* a SEL_FLOATED message.  In either case the dock site involved is passed
* in the void* pointer argument of the message.
*/
class FXAPI FXDockBar : public FXPacker {
  FXDECLARE(FXDockBar)
protected:
  FXComposite *drydock;	        // Parent when docked
  FXComposite *wetdock;	        // Parent when floating
  FXint        gripx;           // Grip offset x
  FXint        gripy;           // Grip offset y
  FXuchar      allowed;         // Where we're allowed to dock
//  FXuchar      mode;            // Dragging mode
//protected:
//  static const FXDefaultCursor cursorType[16];
protected:
  FXDockBar();
  FXbool isAllowable(FXuint hints) const;
//  FXuchar where(FXint x,FXint y) const;
protected:
  enum {
    DRAG_NONE        = 0,
    DRAG_TOP         = 1,
    DRAG_BOTTOM      = 2,
    DRAG_LEFT        = 4,
    DRAG_RIGHT       = 8,
    DRAG_TOPLEFT     = (DRAG_TOP|DRAG_LEFT),
    DRAG_TOPRIGHT    = (DRAG_TOP|DRAG_RIGHT),
    DRAG_BOTTOMLEFT  = (DRAG_BOTTOM|DRAG_LEFT),
    DRAG_BOTTOMRIGHT = (DRAG_BOTTOM|DRAG_RIGHT)
    };
private:
  FXDockBar(const FXDockBar&);
  FXDockBar &operator=(const FXDockBar&);
public:
//  long onEnter(FXObject*,FXSelector,void*);
//  long onLeave(FXObject*,FXSelector,void*);
//  long onMotion(FXObject*,FXSelector,void*);
//  long onLeftBtnPress(FXObject*,FXSelector,void*);
//  long onLeftBtnRelease(FXObject*,FXSelector,void*);
  long onCmdUndock(FXObject*,FXSelector,void*);
  long onUpdUndock(FXObject*,FXSelector,void*);
  long onCmdDockTop(FXObject*,FXSelector,void*);
  long onUpdDockTop(FXObject*,FXSelector,void*);
  long onCmdDockBottom(FXObject*,FXSelector,void*);
  long onUpdDockBottom(FXObject*,FXSelector,void*);
  long onCmdDockLeft(FXObject*,FXSelector,void*);
  long onUpdDockLeft(FXObject*,FXSelector,void*);
  long onCmdDockRight(FXObject*,FXSelector,void*);
  long onUpdDockRight(FXObject*,FXSelector,void*);
  long onUpdDockFlip(FXObject*,FXSelector,void*);
  long onBeginDragGrip(FXObject*,FXSelector,void*);
  long onEndDragGrip(FXObject*,FXSelector,void*);
  long onDraggedGrip(FXObject*,FXSelector,void*);
  long onPopupMenu(FXObject*,FXSelector,void*);
  long onDockTimer(FXObject*,FXSelector,void*);
public:
  enum {
    ID_DOCK_FLOAT=FXPacker::ID_LAST,    /// Undock the dock bar
    ID_DOCK_TOP,                        /// Dock on the top
    ID_DOCK_BOTTOM,                     /// Dock on the bottom
    ID_DOCK_LEFT,                       /// Dock on the left
    ID_DOCK_RIGHT,                      /// Dock on the right
    ID_DOCK_FLIP,                       /// Flip orientation
    ID_TOOLBARGRIP,                     /// Tool bar grip
    ID_TIMER,
    ID_LAST
    };
public:
  enum {
    ALLOW_NOWHERE=0,                                    /// Don't allow docking anywhere
    ALLOW_TOP=1,                                        /// Docking at the top only
    ALLOW_BOTTOM=2,                                     /// Docking at the bottom only
    ALLOW_LEFT=4,                                       /// Docking at the left only
    ALLOW_RIGHT=8,                                      /// Docking at the right only
    ALLOW_HORIZONTAL=ALLOW_TOP|ALLOW_BOTTOM,            /// Docking at the top and bottom
    ALLOW_VERTICAL=ALLOW_LEFT|ALLOW_RIGHT,              /// Docking at the left and right
    ALLOW_EVERYWHERE=ALLOW_HORIZONTAL|ALLOW_VERTICAL    /// Docking can be everywhere
    };
public:

  /**
  * Construct a floatable dock bar, with a default parent p and an
  * alternate parent q.  To allow docking and dragging the default parent
  * p must be of type FXDockSite, and the alternate parent q must be of
  * type FXToolBarShell.
  * Normally, the dock bar is docked under a window p of type FXDockSite.
  * When floated, the toolbar can be docked under window q, which is
  * usually an kind of FXToolBarShell window.
  */
  FXDockBar(FXComposite* p,FXComposite* q,FXuint opts=LAYOUT_TOP|LAYOUT_LEFT|LAYOUT_FILL_X,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=3,FXint pr=3,FXint pt=2,FXint pb=2,FXint hs=DEFAULT_SPACING,FXint vs=DEFAULT_SPACING);

  /**
  * Construct a non-floatable dock bar.
  * The dock bar can not be undocked.
  */
  FXDockBar(FXComposite* p,FXuint opts,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=2,FXint pr=3,FXint pt=3,FXint pb=2,FXint hs=DEFAULT_SPACING,FXint vs=DEFAULT_SPACING);

  /// Return true if docked
  FXbool isDocked() const;

  /**
  * Check if the dock bar would dock or undock if at locaton barx, bary.
  */
  FXbool insideDock(FXDockSite* docksite,FXint barx,FXint bary);

  /**
  * Set parent when docked.
  * If it was docked, reparent under the new docking window.
  */
  void setDryDock(FXComposite* dry);

  /**
  * Set parent when floating.
  * If it was undocked, then reparent under the new floating window.
  */
  void setWetDock(FXComposite* wet);

  /// Return parent when docked
  FXComposite* getDryDock() const { return drydock; }

  /// Return parent when floating
  FXComposite* getWetDock() const { return wetdock; }

  /// Search for dock against given side of main window
  FXDockSite* findDockAtSide(FXuint side=LAYOUT_SIDE_TOP);

  /// Search for dock close to coordinates rootx, rooty
  FXDockSite* findDockNear(FXint rootx,FXint rooty);

  /**
  * Dock the bar against the given side, after some other widget.
  * However, if after is -1, it will be docked as the innermost bar just before
  * the work-area, while if after is 0, if will be docked as the outermost bar.
  */
  virtual void dock(FXDockSite* docksite,FXWindow* other=NULL,FXbool notify=false);

  /**
  * Dock the bar against the given side, near the given position relative
  * to the toolbar dock's origin.
  */
  virtual void dock(FXDockSite* docksite,FXint localx,FXint localy,FXbool notify);

  /**
  * Undock or float the bar.
  * The initial position of the wet dock is a few pixels
  * below and to the right of the original docked position.
  */
  virtual void undock(FXint rootx,FXint rooty,FXbool notify=false);

  /**
  * Change set of sides (a combination of ALLOW_TOP, ALLOW_LEFT, etc.),
  * where docking is allowed. The default is to allow docking on all sides.
  */
  void allowedSides(FXuchar allow){ allowed=allow; }

  /**
  * Return set of sides where docking is allowed
  */
  FXuchar allowedSides() const { return allowed; }

  /// Save toolbar to a stream
  virtual void save(FXStream& store) const;

  /// Load toolbar from a stream
  virtual void load(FXStream& store);

  /// Destroy
  virtual ~FXDockBar();
  };

}

#endif
