/********************************************************************************
*                                                                               *
*                     P o p u p   W i n d o w   W i d g e t                     *
*                                                                               *
*********************************************************************************
* Copyright (C) 1998,2024 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 FXPOPUP_H
#define FXPOPUP_H

#ifndef FXSHELL_H
#include "FXShell.h"
#endif

namespace FX {


/// Popup internal orientation
enum {
  POPUP_VERTICAL   = 0,               /// Vertical orientation
  POPUP_HORIZONTAL = 0x00020000,      /// Horizontal orientation
  POPUP_SHRINKWRAP = 0x00040000       /// Shrinkwrap to content
  };


/**
* Popup window is used as a container for transitional controls
* such as menu panes and other ephemeral windows.  One of its
* principal characteristics is that no other controls, except the
* ones inside the popup are capable of interaction.  Any click outside
* of a popup will cause the popup to be closed.
* Contents of popups may be arranged vertically (POPUP_VERTICAL) or
* horizontally (POPUP_HORIZONTAL).
* The special POPUP_SHRINKWRAP option causes the application to recompute
* the size of the popup window based on its contents at the time it is
* shown, thus permitting dynamically changing content.
*/
class FXAPI FXPopup : public FXShell {
  FXDECLARE(FXPopup)
private:
  FXPopup  *prevActive;         // Popup below this one in stack
  FXPopup  *nextActive;         // Popup above this one in stack
protected:
  FXWindow *grabowner;          // Window which will get grabbed when outside
  FXColor   baseColor;
  FXColor   hiliteColor;
  FXColor   shadowColor;
  FXColor   borderColor;
  FXint     border;
protected:
  FXPopup();
  virtual FXbool doesOverrideRedirect() const;
  void drawBorderRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawRaisedRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawSunkenRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawRidgeRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawGrooveRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawDoubleRaisedRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawDoubleSunkenRectangle(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawFrame(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
private:
  FXPopup(const FXPopup&);
  FXPopup &operator=(const FXPopup&);
#ifdef WIN32
  virtual const void* GetClass() const;
#endif
public:
  long onPaint(FXObject*,FXSelector,void*);
  long onFocusUp(FXObject*,FXSelector,void*);
  long onFocusDown(FXObject*,FXSelector,void*);
  long onFocusLeft(FXObject*,FXSelector,void*);
  long onFocusRight(FXObject*,FXSelector,void*);
  long onFocusNext(FXObject*,FXSelector,void*);
  long onFocusPrev(FXObject*,FXSelector,void*);
  long onEnter(FXObject*,FXSelector,void*);
  long onLeave(FXObject*,FXSelector,void*);
  long onMotion(FXObject*,FXSelector,void*);
  long onMap(FXObject*,FXSelector,void*);
  long onLayout(FXObject*,FXSelector,void*);
  long onButtonPress(FXObject*,FXSelector,void*);
  long onButtonRelease(FXObject*,FXSelector,void*);
  long onUngrabbed(FXObject*,FXSelector,void*);
  long onCmdUnpost(FXObject*,FXSelector,void*);
  long onKeyPress(FXObject*,FXSelector,void*);
  long onKeyRelease(FXObject*,FXSelector,void*);
  long onCmdChoice(FXObject*,FXSelector,void*);
public:
  enum {
    ID_CHOICE=FXShell::ID_LAST,
    ID_LAST=ID_CHOICE+1000
    };
public:

  /// Construct popup pane
  FXPopup(FXWindow* owner,FXuint opts=POPUP_VERTICAL|FRAME_RAISED|FRAME_THICK,FXint x=0,FXint y=0,FXint w=0,FXint h=0);

  /// Return the default width of this window
  virtual FXint getDefaultWidth();

  /// Return the default height of this window
  virtual FXint getDefaultHeight();

  /// Perform layout
  virtual void layout();

  /// Return a pointer to the prior active popup
  FXPopup* getPrevActive() const { return prevActive; }

  /// Return a pointer to the next active popup
  FXPopup* getNextActive() const { return nextActive; }

  /// Move the focus to this window
  virtual void setFocus();

  /// Remove the focus from this window
  virtual void killFocus();

  /// Show this window
  virtual void show();

  /// Hide this window
  virtual void hide();

  /// Change frame style
  void setFrameStyle(FXuint style);

  /// Return frame style
  FXuint getFrameStyle() const;

  /// Return border width
  FXint getBorderWidth() const { return border; }

  /// Change highlight color
  void setHiliteColor(FXColor clr);

  /// Return highlight color
  FXColor getHiliteColor() const { return hiliteColor; }

  /// Change shadow color
  void setShadowColor(FXColor clr);

  /// Return shadow color
  FXColor getShadowColor() const { return shadowColor; }

  /// Change border color
  void setBorderColor(FXColor clr);

  /// Return border color
  FXColor getBorderColor() const { return borderColor; }

  /// Change base color
  void setBaseColor(FXColor clr);

  /// Return base color
  FXColor getBaseColor() const { return baseColor; }

  /// Popup the menu and grab to the given owner
  virtual void popup(FXWindow* grabto,FXint x,FXint y,FXint w=0,FXint h=0);

  /// Pop down the menu
  virtual void popdown();

  /// Return current grab owner
  FXWindow* getGrabOwner();

//   /// Popup the menu and grab to the given owner
//   virtual FXint popup(FXint x,FXint y,FXint w=0,FXint h=0);
//
//   /// Pop down the menu
//   virtual void popdown(FXint value);

  /// Change popup orientation
  void setOrientation(FXuint orient);

  /// Return popup orientation
  FXuint getOrientation() const;

  /// Change shrinkwrap mode
  void setShrinkWrap(FXbool flag);

  /// Return shrinkwrap mode
  FXbool getShrinkWrap() const;

  /// Does save-unders
  virtual FXbool doesSaveUnder() const;

  /// Destructor
  virtual ~FXPopup();
  };

}

#endif