FXScrollBar.h

/********************************************************************************
*                                                                               *
*                       S c r o l l   B a r   W i d g e t                       *
*                                                                               *
*********************************************************************************
* Copyright (C) 1997,2024 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 FXSCROLLBAR_H
#define FXSCROLLBAR_H

#ifndef FXWINDOW_H
#include "FXWindow.h"
#endif

namespace FX {


enum {
  SCROLLBAR_VERTICAL   = 0,             
  SCROLLBAR_HORIZONTAL = 0x00020000,    
  SCROLLBAR_WHEELJUMP  = 0x00040000     
  };



class FXAPI FXScrollBar : public FXWindow {
  FXDECLARE(FXScrollBar)
protected:
  FXint      range;           // Scrollable range
  FXint      page;            // Page size
  FXint      line;            // Line size
  FXint      pos;             // Position
  FXint      barsize;         // Bar size
  FXint      thumbsize;       // Thumb size
  FXint      thumbpos;        // Thumb position
  FXint      wheelLines;      // Scroll wheel lines
  FXColor    hiliteColor;     // Hightlight color
  FXColor    shadowColor;     // Shadow color
  FXColor    borderColor;     // Border color
  FXColor    arrowColor;      // Arrow color
  FXint      dragpoint;       // Point where grabbed
  FXuchar    mode;            // Current mode of control
protected:
  FXScrollBar();
  void drawButton(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h,FXbool down);
  void drawThumb(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
  void drawLeftArrow(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h,FXbool down);
  void drawRightArrow(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h,FXbool down);
  void drawUpArrow(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h,FXbool down);
  void drawDownArrow(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h,FXbool down);
protected:
  enum {
    MODE_NONE,
    MODE_INC,
    MODE_DEC,
    MODE_PAGE_INC,
    MODE_PAGE_DEC,
    MODE_DRAG,
    MODE_FINE_DRAG
    };
private:
  FXScrollBar(const FXScrollBar&);
  FXScrollBar &operator=(const FXScrollBar&);
public:
  long onPaint(FXObject*,FXSelector,void*);
  long onMotion(FXObject*,FXSelector,void*);
  long onMouseWheel(FXObject*,FXSelector,void*);
  long onLeftBtnPress(FXObject*,FXSelector,void*);
  long onLeftBtnRelease(FXObject*,FXSelector,void*);
  long onMiddleBtnPress(FXObject*,FXSelector,void*);
  long onMiddleBtnRelease(FXObject*,FXSelector,void*);
  long onRightBtnPress(FXObject*,FXSelector,void*);
  long onRightBtnRelease(FXObject*,FXSelector,void*);
  long onUngrabbed(FXObject*,FXSelector,void*);
  long onTimeWheel(FXObject*,FXSelector,void*);
  long onAutoScroll(FXObject*,FXSelector,void*);
  long onCmdSetValue(FXObject*,FXSelector,void*);
  long onCmdSetIntValue(FXObject*,FXSelector,void*);
  long onCmdGetIntValue(FXObject*,FXSelector,void*);
  long onCmdSetLongValue(FXObject*,FXSelector,void*);
  long onCmdGetLongValue(FXObject*,FXSelector,void*);
  long onCmdSetIntRange(FXObject*,FXSelector,void*);
  long onCmdGetIntRange(FXObject*,FXSelector,void*);
public:
  enum{
    ID_AUTOSCROLL=FXWindow::ID_LAST,
    ID_TIMEWHEEL,
    ID_LAST
    };
public:

  FXScrollBar(FXComposite* p,FXObject* tgt=nullptr,FXSelector sel=0,FXuint opts=SCROLLBAR_VERTICAL,FXint x=0,FXint y=0,FXint w=0,FXint h=0);

  virtual FXint getDefaultWidth();

  virtual FXint getDefaultHeight();

  virtual void layout();

  void setRange(FXint r,FXbool notify=false);

  FXint getRange() const { return range; }

  void setPage(FXint p,FXbool notify=false);

  FXint getPage() const { return page; }

  void setPosition(FXint p,FXbool notify=false);

  FXint getPosition() const { return pos; }

  void setLine(FXint l);

  FXint getLine() const { return line; }

  void setWheelLines(FXint lines){ wheelLines=lines; }

  FXint getWheelLines() const { return wheelLines; }

  void setHiliteColor(FXColor clr);

  FXColor getHiliteColor() const { return hiliteColor; }

  void setShadowColor(FXColor clr);

  FXColor getShadowColor() const { return shadowColor; }

  void setBorderColor(FXColor clr);

  FXColor getBorderColor() const { return borderColor; }

  void setArrowColor(FXColor clr);

  FXColor getArrowColor() const { return arrowColor; }

  void setScrollBarStyle(FXuint style);

  FXuint getScrollBarStyle() const;

  void setBarSize(FXint size);

  FXint getBarSize() const { return barsize; }

  virtual void save(FXStream& store) const;

  virtual void load(FXStream& store);

  virtual ~FXScrollBar();
  };


class FXAPI FXScrollCorner : public FXWindow {
  FXDECLARE(FXScrollCorner)
protected:
  FXScrollCorner();
private:
  FXScrollCorner(const FXScrollCorner&);
  FXScrollCorner &operator=(const FXScrollCorner&);
public:
  long onPaint(FXObject*,FXSelector,void*);
public:

  FXScrollCorner(FXComposite* p);

  virtual void enable();

  virtual void disable();
  };

}

#endif