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FXRealSlider.h 8.5 KiB
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  • /********************************************************************************
    *                                                                               *
    *                       R e a l S l i d e r   W i d g e t                       *
    *                                                                               *
    *********************************************************************************
    * Copyright (C) 1997,2006 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 2.1 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 library; if not, write to the Free Software           *
    * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
    *********************************************************************************
    * $Id: FXRealSlider.h 2343 2006-02-12 20:26:26Z lyle $                      *
    ********************************************************************************/
    #ifndef FXREALSLIDER_H
    #define FXREALSLIDER_H
    
    #ifndef FXFRAME_H
    #include "FXFrame.h"
    #endif
    
    namespace FX {
    
    
    /// Slider Control styles
    enum {
      REALSLIDER_HORIZONTAL   = 0,                          /// Slider shown horizontally
      REALSLIDER_VERTICAL     = 0x00008000,                 /// Slider shown vertically
      REALSLIDER_ARROW_UP     = 0x00010000,                 /// Slider has arrow head pointing up
      REALSLIDER_ARROW_DOWN   = 0x00020000,                 /// Slider has arrow head pointing down
      REALSLIDER_ARROW_LEFT   = REALSLIDER_ARROW_UP,        /// Slider has arrow head pointing left
      REALSLIDER_ARROW_RIGHT  = REALSLIDER_ARROW_DOWN,      /// Slider has arrow head pointing right
      REALSLIDER_INSIDE_BAR   = 0x00040000,                 /// Slider is inside the slot rather than overhanging
      REALSLIDER_TICKS_TOP    = 0x00080000,                 /// Ticks on the top of horizontal slider
      REALSLIDER_TICKS_BOTTOM = 0x00100000,                 /// Ticks on the bottom of horizontal slider
      REALSLIDER_TICKS_LEFT   = REALSLIDER_TICKS_TOP,       /// Ticks on the left of vertical slider
      REALSLIDER_TICKS_RIGHT  = REALSLIDER_TICKS_BOTTOM,    /// Ticks on the right of vertical slider
      REALSLIDER_NORMAL       = REALSLIDER_HORIZONTAL
      };
    
    
    /**
    * The real slider widget is a valuator widget which provides simple linear value range.
    * Two visual appearances are supported:- the sunken look, which is enabled with
    * the SLIDER_INSIDE_BAR option and the regular look.  The latter may have optional
    * arrows on the slider thumb.
    * While being moved, the real slider sends a SEL_CHANGED message to its target;
    * at the end of the interaction, a SEL_COMMAND message is sent.
    * The message data represents the current slider value, of type pointer to FXdouble.
    */
    class FXAPI FXRealSlider : public FXFrame {
      FXDECLARE(FXRealSlider)
    protected:
      FXdouble      range[2];                 // Reported data range
      FXdouble      pos;                      // Reported data position
      FXdouble      incr;                     // Increment when auto-sliding
      FXdouble      delta;                    // Interval between ticks
      FXint         headpos;                  // Head position
      FXint         headsize;                 // Head size
      FXint         slotsize;                 // Slot size
      FXColor       slotColor;                // Color of slot the head moves in
      FXint         dragpoint;                // Where on the head is grabbed
      FXString      help;                     // Help string
      FXString      tip;                      // Tip string
    protected:
      FXRealSlider();
      void drawSliderHead(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
      void drawHorzTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
      void drawVertTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
    private:
      FXRealSlider(const FXRealSlider&);
      FXRealSlider &operator=(const FXRealSlider&);
    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 onKeyPress(FXObject*,FXSelector,void*);
      long onKeyRelease(FXObject*,FXSelector,void*);
      long onUngrabbed(FXObject*,FXSelector,void*);
      long onAutoSlide(FXObject*,FXSelector,void*);
      long onCmdSetValue(FXObject*,FXSelector,void*);
      long onCmdSetIntValue(FXObject*,FXSelector,void*);
      long onCmdGetIntValue(FXObject*,FXSelector,void*);
      long onCmdSetRealValue(FXObject*,FXSelector,void*);
      long onCmdGetRealValue(FXObject*,FXSelector,void*);
      long onCmdSetIntRange(FXObject*,FXSelector,void*);
      long onCmdGetIntRange(FXObject*,FXSelector,void*);
      long onCmdSetRealRange(FXObject*,FXSelector,void*);
      long onCmdGetRealRange(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*);
    public:
      enum{
        ID_AUTOSLIDE=FXFrame::ID_LAST,
        ID_LAST
        };
    public:
    
      /// Construct a slider widget
      FXRealSlider(FXComposite* p,FXObject* tgt=NULL,FXSelector sel=0,FXuint opts=REALSLIDER_NORMAL,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=0,FXint pr=0,FXint pt=0,FXint pb=0);
    
      /// Return default width
      virtual FXint getDefaultWidth();
    
      /// Return default height
      virtual FXint getDefaultHeight();
    
      /// Returns true because a slider can receive focus
      virtual bool canFocus() const;
    
      /// Perform layout
      virtual void layout();
    
      /// Enable the slider
      virtual void enable();
    
      /// Disable the slider
      virtual void disable();
    
      /// Change slider value
      void setValue(FXdouble value,FXbool notify=FALSE);
    
      /// Return slider value
      FXdouble getValue() const { return pos; }
    
      /// Change the slider's range
      void setRange(FXdouble lo,FXdouble hi,FXbool notify=FALSE);
    
      /// Get the slider's current range
      void getRange(FXdouble& lo,FXdouble& hi) const { lo=range[0]; hi=range[1]; }
    
      /// Change the slider style
      FXuint getSliderStyle() const;
    
      /// Get the current slider style
      void setSliderStyle(FXuint style);
    
      /// Get the slider's head size
      FXint getHeadSize() const { return headsize; }
    
      /// Change the slider's head size
      void setHeadSize(FXint hs);
    
      /// Get the slider's current slot size
      FXint getSlotSize() const { return slotsize; }
    
      /// Change the slider's slot size
      void setSlotSize(FXint bs);
    
      /// Get the slider's auto-increment/decrement value
      FXdouble getIncrement() const { return incr; }
    
      /// Change the slider's auto-increment/decrement value
      void setIncrement(FXdouble inc);
    
      /// Change the delta between ticks
      void setTickDelta(FXdouble dist);
    
      /// Get delta between ticks
      FXdouble getTickDelta() const { return delta; }
    
      /// Change the color of the slot the slider head moves in
      void setSlotColor(FXColor clr);
    
      /// Get the current slot color
      FXColor getSlotColor() const { return slotColor; }
    
      /// Set the help text to be displayed on the status line
      void setHelpText(const FXString& text){ help=text; }
    
      /// Get the current help text
      const FXString& getHelpText() const { return help; }
    
      /// Set the tip text to be displayed in the tooltip
      void setTipText(const FXString& text){ tip=text; }
    
      /// Get the current tooltip text value
      const FXString& getTipText() const { return tip; }
    
      /// Save to stream
      virtual void save(FXStream& store) const;
    
      /// Load from stream
      virtual void load(FXStream& store);
    
      /// Destroy the slider
      virtual ~FXRealSlider();
      };
    
    }
    
    #endif