/********************************************************************************
*                                                                               *
*                         C o l o r W e l l   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 FXCOLORWELL_H
#define FXCOLORWELL_H

#ifndef FXFRAME_H
#include "FXFrame.h"
#endif

namespace FX {


// Color Well Styles
enum {
  COLORWELL_OPAQUEONLY = 0x00008000,  /// Colors must be opaque
  COLORWELL_SOURCEONLY = 0x00010000,  /// ColorWell is never a target
  COLORWELL_NORMAL     = FRAME_SUNKEN|FRAME_THICK
  };



/**
* A color well is a widget which controls color settings.
* Colors may be dragged and dropped from one color well to another,
* or from color wells to other widgets that understand standard drag-and-drop
* behavior, like for example the Gradient Bar widget.
* A double-click inside a color well will bring up the standard
* color dialog panel to edit the color well's color.
* While the color value is being changed, the color well sends a SEL_CHANGED
* to its target; at the end of the change, it sends a SEL_COMMAND.
* The message data represents the current color value, of the type FXColor.
*/
class FXAPI FXColorWell : public FXFrame {
  FXDECLARE(FXColorWell)
protected:
  FXColor   wellColor[2];       // Pixel value of RGBA over black and white
  FXint     wellSize;           // Well size
  FXColor   rgba;               // Color with RGB and Alpha
  FXString  tip;                // Tooltip value
  FXString  help;               // Help value
protected:
  FXColorWell();
private:
  FXColorWell(const FXColorWell&);
  FXColorWell &operator=(const FXColorWell&);
public:
  long onPaint(FXObject*,FXSelector,void*);
  long onLeftBtnPress(FXObject*,FXSelector,void*);
  long onLeftBtnRelease(FXObject*,FXSelector,void*);
  long onKeyPress(FXObject*,FXSelector,void*);
  long onKeyRelease(FXObject*,FXSelector,void*);
  long onUngrabbed(FXObject*,FXSelector,void*);
  long onMotion(FXObject*,FXSelector,void*);
  long onBeginDrag(FXObject*,FXSelector,void*);
  long onEndDrag(FXObject*,FXSelector,void*);
  long onDragged(FXObject*,FXSelector,void*);
  long onFocusIn(FXObject*,FXSelector,void*);
  long onFocusOut(FXObject*,FXSelector,void*);
  long onDNDEnter(FXObject*,FXSelector,void*);
  long onDNDLeave(FXObject*,FXSelector,void*);
  long onDNDMotion(FXObject*,FXSelector,void*);
  long onDNDDrop(FXObject*,FXSelector,void*);
  long onDNDRequest(FXObject*,FXSelector,void*);
  long onClicked(FXObject*,FXSelector,void*);
  long onDoubleClicked(FXObject*,FXSelector,void*);
  long onCmdSetValue(FXObject*,FXSelector,void*);
  long onCmdSetIntValue(FXObject*,FXSelector,void*);
  long onCmdGetIntValue(FXObject*,FXSelector,void*);
  long onCmdSetHelp(FXObject*,FXSelector,void*);
  long onCmdGetHelp(FXObject*,FXSelector,void*);
  long onCmdSetTip(FXObject*,FXSelector,void*);
  long onCmdGetTip(FXObject*,FXSelector,void*);
  long onQueryHelp(FXObject*,FXSelector,void*);
  long onQueryTip(FXObject*,FXSelector,void*);
  long onUpdColor(FXObject*,FXSelector,void*);
  long onChgColor(FXObject*,FXSelector,void*);
  long onCmdColor(FXObject*,FXSelector,void*);
public:
  enum {
    ID_COLOR=FXFrame::ID_LAST,
    ID_LAST
    };
public:

  /// Construct color well with initial color clr
  FXColorWell(FXComposite* p,FXColor clr=0,FXObject* tgt=nullptr,FXSelector sel=0,FXuint opts=COLORWELL_NORMAL,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=DEFAULT_PAD,FXint pr=DEFAULT_PAD,FXint pt=DEFAULT_PAD,FXint pb=DEFAULT_PAD);

  /// Return default width
  virtual FXint getDefaultWidth();

  /// Return default height
  virtual FXint getDefaultHeight();

  /// Returns true because a color well can receive focus
  virtual FXbool canFocus() const;

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

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

  /// Set color
  void setRGBA(FXColor clr,FXbool notify=false);

  /// Get color
  FXColor getRGBA() const { return rgba; }

  /// Set status line help text for this color well
  void setHelpText(const FXString& text){ help=text; }

  /// Get status line help text for this color well
  const FXString& getHelpText() const { return help; }

  /// Set tool tip message for this color well
  void setTipText(const FXString& text){ tip=text; }

  /// Get tool tip message for this color well
  const FXString& getTipText() const { return tip; }

  /// Change minimum well size
  void setWellSise(FXint ws);

  /// Return well size
  FXint getWellSize() const { return wellSize; }

  /// Return true if only opaque colors allowed
  FXbool isOpaqueOnly() const;

  /// Change opaque only mode
  void setOpaqueOnly(FXbool opaque);

  /// Return true if only a source
  FXbool isSourceOnly() const;

  /// Change source only mode
  void setSourceOnly(FXbool srconly);

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

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

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

}

#endif