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FXRealSlider.h

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00001 /********************************************************************************
00002 *                                                                               *
00003 *                       R e a l S l i d e r   W i d g e t                       *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1997,2006 by Jeroen van der Zijp.   All Rights Reserved.        *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or                 *
00009 * modify it under the terms of the GNU Lesser General Public                    *
00010 * License as published by the Free Software Foundation; either                  *
00011 * version 2.1 of the License, or (at your option) any later version.            *
00012 *                                                                               *
00013 * This library is distributed in the hope that it will be useful,               *
00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of                *
00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU             *
00016 * Lesser General Public License for more details.                               *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public              *
00019 * License along with this library; if not, write to the Free Software           *
00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.    *
00021 *********************************************************************************
00022 * $Id: FXRealSlider.h,v 1.11 2006/01/22 17:58:08 fox Exp $                      *
00023 ********************************************************************************/
00024 #ifndef FXREALSLIDER_H
00025 #define FXREALSLIDER_H
00026 
00027 #ifndef FXFRAME_H
00028 #include "FXFrame.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 
00034 /// Slider Control styles
00035 enum {
00036   REALSLIDER_HORIZONTAL   = 0,                          /// Slider shown horizontally
00037   REALSLIDER_VERTICAL     = 0x00008000,                 /// Slider shown vertically
00038   REALSLIDER_ARROW_UP     = 0x00010000,                 /// Slider has arrow head pointing up
00039   REALSLIDER_ARROW_DOWN   = 0x00020000,                 /// Slider has arrow head pointing down
00040   REALSLIDER_ARROW_LEFT   = REALSLIDER_ARROW_UP,        /// Slider has arrow head pointing left
00041   REALSLIDER_ARROW_RIGHT  = REALSLIDER_ARROW_DOWN,      /// Slider has arrow head pointing right
00042   REALSLIDER_INSIDE_BAR   = 0x00040000,                 /// Slider is inside the slot rather than overhanging
00043   REALSLIDER_TICKS_TOP    = 0x00080000,                 /// Ticks on the top of horizontal slider
00044   REALSLIDER_TICKS_BOTTOM = 0x00100000,                 /// Ticks on the bottom of horizontal slider
00045   REALSLIDER_TICKS_LEFT   = REALSLIDER_TICKS_TOP,       /// Ticks on the left of vertical slider
00046   REALSLIDER_TICKS_RIGHT  = REALSLIDER_TICKS_BOTTOM,    /// Ticks on the right of vertical slider
00047   REALSLIDER_NORMAL       = REALSLIDER_HORIZONTAL
00048   };
00049 
00050 
00051 /**
00052 * The real slider widget is a valuator widget which provides simple linear value range.
00053 * Two visual appearances are supported:- the sunken look, which is enabled with
00054 * the SLIDER_INSIDE_BAR option and the regular look.  The latter may have optional
00055 * arrows on the slider thumb.
00056 * While being moved, the real slider sends a SEL_CHANGED message to its target;
00057 * at the end of the interaction, a SEL_COMMAND message is sent.
00058 * The message data represents the current slider value, of type pointer to FXdouble.
00059 */
00060 class FXAPI FXRealSlider : public FXFrame {
00061   FXDECLARE(FXRealSlider)
00062 protected:
00063   FXdouble      range[2];                 // Reported data range
00064   FXdouble      pos;                      // Reported data position
00065   FXdouble      incr;                     // Increment when auto-sliding
00066   FXdouble      delta;                    // Interval between ticks
00067   FXint         headpos;                  // Head position
00068   FXint         headsize;                 // Head size
00069   FXint         slotsize;                 // Slot size
00070   FXColor       slotColor;                // Color of slot the head moves in
00071   FXint         dragpoint;                // Where on the head is grabbed
00072   FXString      help;                     // Help string
00073   FXString      tip;                      // Tip string
00074 protected:
00075   FXRealSlider();
00076   void drawSliderHead(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00077   void drawHorzTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00078   void drawVertTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00079 private:
00080   FXRealSlider(const FXRealSlider&);
00081   FXRealSlider &operator=(const FXRealSlider&);
00082 public:
00083   long onPaint(FXObject*,FXSelector,void*);
00084   long onMotion(FXObject*,FXSelector,void*);
00085   long onMouseWheel(FXObject*,FXSelector,void*);
00086   long onLeftBtnPress(FXObject*,FXSelector,void*);
00087   long onLeftBtnRelease(FXObject*,FXSelector,void*);
00088   long onMiddleBtnPress(FXObject*,FXSelector,void*);
00089   long onMiddleBtnRelease(FXObject*,FXSelector,void*);
00090   long onKeyPress(FXObject*,FXSelector,void*);
00091   long onKeyRelease(FXObject*,FXSelector,void*);
00092   long onUngrabbed(FXObject*,FXSelector,void*);
00093   long onAutoSlide(FXObject*,FXSelector,void*);
00094   long onCmdSetValue(FXObject*,FXSelector,void*);
00095   long onCmdSetIntValue(FXObject*,FXSelector,void*);
00096   long onCmdGetIntValue(FXObject*,FXSelector,void*);
00097   long onCmdSetRealValue(FXObject*,FXSelector,void*);
00098   long onCmdGetRealValue(FXObject*,FXSelector,void*);
00099   long onCmdSetIntRange(FXObject*,FXSelector,void*);
00100   long onCmdGetIntRange(FXObject*,FXSelector,void*);
00101   long onCmdSetRealRange(FXObject*,FXSelector,void*);
00102   long onCmdGetRealRange(FXObject*,FXSelector,void*);
00103   long onCmdSetHelp(FXObject*,FXSelector,void*);
00104   long onCmdGetHelp(FXObject*,FXSelector,void*);
00105   long onCmdSetTip(FXObject*,FXSelector,void*);
00106   long onCmdGetTip(FXObject*,FXSelector,void*);
00107   long onQueryHelp(FXObject*,FXSelector,void*);
00108   long onQueryTip(FXObject*,FXSelector,void*);
00109 public:
00110   enum{
00111     ID_AUTOSLIDE=FXFrame::ID_LAST,
00112     ID_LAST
00113     };
00114 public:
00115 
00116   /// Construct a slider widget
00117   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);
00118 
00119   /// Return default width
00120   virtual FXint getDefaultWidth();
00121 
00122   /// Return default height
00123   virtual FXint getDefaultHeight();
00124 
00125   /// Returns true because a slider can receive focus
00126   virtual bool canFocus() const;
00127 
00128   /// Perform layout
00129   virtual void layout();
00130 
00131   /// Enable the slider
00132   virtual void enable();
00133 
00134   /// Disable the slider
00135   virtual void disable();
00136 
00137   /// Change slider value
00138   void setValue(FXdouble value,FXbool notify=FALSE);
00139 
00140   /// Return slider value
00141   FXdouble getValue() const { return pos; }
00142 
00143   /// Change the slider's range
00144   void setRange(FXdouble lo,FXdouble hi,FXbool notify=FALSE);
00145 
00146   /// Get the slider's current range
00147   void getRange(FXdouble& lo,FXdouble& hi) const { lo=range[0]; hi=range[1]; }
00148 
00149   /// Change the slider style
00150   FXuint getSliderStyle() const;
00151 
00152   /// Get the current slider style
00153   void setSliderStyle(FXuint style);
00154 
00155   /// Get the slider's head size
00156   FXint getHeadSize() const { return headsize; }
00157 
00158   /// Change the slider's head size
00159   void setHeadSize(FXint hs);
00160 
00161   /// Get the slider's current slot size
00162   FXint getSlotSize() const { return slotsize; }
00163 
00164   /// Change the slider's slot size
00165   void setSlotSize(FXint bs);
00166 
00167   /// Get the slider's auto-increment/decrement value
00168   FXdouble getIncrement() const { return incr; }
00169 
00170   /// Change the slider's auto-increment/decrement value
00171   void setIncrement(FXdouble inc);
00172 
00173   /// Change the delta between ticks
00174   void setTickDelta(FXdouble dist);
00175 
00176   /// Get delta between ticks
00177   FXdouble getTickDelta() const { return delta; }
00178 
00179   /// Change the color of the slot the slider head moves in
00180   void setSlotColor(FXColor clr);
00181 
00182   /// Get the current slot color
00183   FXColor getSlotColor() const { return slotColor; }
00184 
00185   /// Set the help text to be displayed on the status line
00186   void setHelpText(const FXString& text){ help=text; }
00187 
00188   /// Get the current help text
00189   const FXString& getHelpText() const { return help; }
00190 
00191   /// Set the tip text to be displayed in the tooltip
00192   void setTipText(const FXString& text){ tip=text; }
00193 
00194   /// Get the current tooltip text value
00195   const FXString& getTipText() const { return tip; }
00196 
00197   /// Save to stream
00198   virtual void save(FXStream& store) const;
00199 
00200   /// Load from stream
00201   virtual void load(FXStream& store);
00202 
00203   /// Destroy the slider
00204   virtual ~FXRealSlider();
00205   };
00206 
00207 }
00208 
00209 #endif

Copyright © 1997-2005 Jeroen van der Zijp