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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) 1997,2009 by Jeroen van der Zijp.   All Rights Reserved.        *
00007 *********************************************************************************
00008 * This library is free software; you can redistribute it and/or modify          *
00009 * it under the terms of the GNU Lesser General Public License as published by   *
00010 * the Free Software Foundation; either version 3 of the License, or             *
00011 * (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                 *
00016 * GNU Lesser General Public License for more details.                           *
00017 *                                                                               *
00018 * You should have received a copy of the GNU Lesser General Public License      *
00019 * along with this program.  If not, see <http://www.gnu.org/licenses/>          *
00020 *********************************************************************************
00021 * $Id: FXRealSlider.h,v 1.20 2009/01/06 13:07:26 fox Exp $                      *
00022 ********************************************************************************/
00023 #ifndef FXREALSLIDER_H
00024 #define FXREALSLIDER_H
00025 
00026 #ifndef FXFRAME_H
00027 #include "FXFrame.h"
00028 #endif
00029 
00030 namespace FX {
00031 
00032 
00033 /// Slider Control styles
00034 enum {
00035   REALSLIDER_HORIZONTAL   = 0,                          /// Slider shown horizontally
00036   REALSLIDER_VERTICAL     = 0x00008000,                 /// Slider shown vertically
00037   REALSLIDER_ARROW_UP     = 0x00010000,                 /// Slider has arrow head pointing up
00038   REALSLIDER_ARROW_DOWN   = 0x00020000,                 /// Slider has arrow head pointing down
00039   REALSLIDER_ARROW_LEFT   = REALSLIDER_ARROW_UP,        /// Slider has arrow head pointing left
00040   REALSLIDER_ARROW_RIGHT  = REALSLIDER_ARROW_DOWN,      /// Slider has arrow head pointing right
00041   REALSLIDER_INSIDE_BAR   = 0x00040000,                 /// Slider is inside the slot rather than overhanging
00042   REALSLIDER_TICKS_TOP    = 0x00080000,                 /// Ticks on the top of horizontal slider
00043   REALSLIDER_TICKS_BOTTOM = 0x00100000,                 /// Ticks on the bottom of horizontal slider
00044   REALSLIDER_TICKS_LEFT   = REALSLIDER_TICKS_TOP,       /// Ticks on the left of vertical slider
00045   REALSLIDER_TICKS_RIGHT  = REALSLIDER_TICKS_BOTTOM,    /// Ticks on the right of vertical slider
00046   REALSLIDER_NORMAL       = REALSLIDER_HORIZONTAL
00047   };
00048 
00049 
00050 /**
00051 * The real slider widget is a valuator widget which provides simple linear value range.
00052 * Two visual appearances are supported:- the sunken look, which is enabled with
00053 * the SLIDER_INSIDE_BAR option and the regular look.  The latter may have optional
00054 * arrows on the slider thumb.
00055 * While being moved, the real slider sends a SEL_CHANGED message to its target;
00056 * at the end of the interaction, a SEL_COMMAND message is sent.
00057 * The message data represents the current slider value, of type pointer to FXdouble.
00058 */
00059 class FXAPI FXRealSlider : public FXFrame {
00060   FXDECLARE(FXRealSlider)
00061 protected:
00062   FXint         headPos;        // Head position
00063   FXint         headSize;       // Head size
00064   FXint         slotSize;       // Slot size
00065   FXColor       slotColor;      // Color of slot the head moves in
00066   FXint         dragPoint;      // Where on the head is grabbed
00067   FXdouble      range[2];       // Reported data range
00068   FXdouble      delta;          // Interval between ticks
00069   FXdouble      incr;           // Increment when auto-sliding
00070   FXdouble      gran;           // Granularity
00071   FXdouble      pos;            // Reported data position
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 onCmdSetLongValue(FXObject*,FXSelector,void*);
00098   long onCmdGetLongValue(FXObject*,FXSelector,void*);
00099   long onCmdSetRealValue(FXObject*,FXSelector,void*);
00100   long onCmdGetRealValue(FXObject*,FXSelector,void*);
00101   long onCmdSetIntRange(FXObject*,FXSelector,void*);
00102   long onCmdGetIntRange(FXObject*,FXSelector,void*);
00103   long onCmdSetRealRange(FXObject*,FXSelector,void*);
00104   long onCmdGetRealRange(FXObject*,FXSelector,void*);
00105   long onCmdSetHelp(FXObject*,FXSelector,void*);
00106   long onCmdGetHelp(FXObject*,FXSelector,void*);
00107   long onCmdSetTip(FXObject*,FXSelector,void*);
00108   long onCmdGetTip(FXObject*,FXSelector,void*);
00109   long onQueryHelp(FXObject*,FXSelector,void*);
00110   long onQueryTip(FXObject*,FXSelector,void*);
00111 public:
00112   enum{
00113     ID_AUTOSLIDE=FXFrame::ID_LAST,
00114     ID_LAST
00115     };
00116 public:
00117 
00118   /// Construct a slider widget
00119   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);
00120 
00121   /// Return default width
00122   virtual FXint getDefaultWidth();
00123 
00124   /// Return default height
00125   virtual FXint getDefaultHeight();
00126 
00127   /// Returns true because a slider can receive focus
00128   virtual FXbool canFocus() const;
00129 
00130   /// Perform layout
00131   virtual void layout();
00132 
00133   /// Enable the slider
00134   virtual void enable();
00135 
00136   /// Disable the slider
00137   virtual void disable();
00138 
00139   /// Change slider value
00140   void setValue(FXdouble value,FXbool notify=false);
00141 
00142   /// Return slider value
00143   FXdouble getValue() const { return pos; }
00144 
00145   /// Change the slider's range
00146   void setRange(FXdouble lo,FXdouble hi,FXbool notify=false);
00147 
00148   /// Get the slider's current range
00149   void getRange(FXdouble& lo,FXdouble& hi) const { lo=range[0]; hi=range[1]; }
00150 
00151   /// Change the slider style
00152   FXuint getSliderStyle() const;
00153 
00154   /// Get the current slider style
00155   void setSliderStyle(FXuint style);
00156 
00157   /// Get the slider's head size
00158   FXint getHeadSize() const { return headSize; }
00159 
00160   /// Change the slider's head size
00161   void setHeadSize(FXint hs);
00162 
00163   /// Get the slider's current slot size
00164   FXint getSlotSize() const { return slotSize; }
00165 
00166   /// Change the slider's slot size
00167   void setSlotSize(FXint bs);
00168 
00169   /// Get the slider's auto-increment/decrement value
00170   FXdouble getIncrement() const { return incr; }
00171 
00172   /// Change the slider's auto-increment/decrement value
00173   void setIncrement(FXdouble inc);
00174 
00175   /// Change slider's granularity
00176   void setGranularity(FXdouble gr);
00177 
00178   /// Return slider's granularity
00179   FXdouble getGranularity() const { return gran; }
00180 
00181   /// Change the delta between ticks
00182   void setTickDelta(FXdouble dist);
00183 
00184   /// Get delta between ticks
00185   FXdouble getTickDelta() const { return delta; }
00186 
00187   /// Change the color of the slot the slider head moves in
00188   void setSlotColor(FXColor clr);
00189 
00190   /// Get the current slot color
00191   FXColor getSlotColor() const { return slotColor; }
00192 
00193   /// Set the help text to be displayed on the status line
00194   void setHelpText(const FXString& text){ help=text; }
00195 
00196   /// Get the current help text
00197   const FXString& getHelpText() const { return help; }
00198 
00199   /// Set the tip text to be displayed in the tooltip
00200   void setTipText(const FXString& text){ tip=text; }
00201 
00202   /// Get the current tooltip text value
00203   const FXString& getTipText() const { return tip; }
00204 
00205   /// Save to stream
00206   virtual void save(FXStream& store) const;
00207 
00208   /// Load from stream
00209   virtual void load(FXStream& store);
00210 
00211   /// Destroy the slider
00212   virtual ~FXRealSlider();
00213   };
00214 
00215 }
00216 
00217 #endif

Copyright © 1997-2009 Jeroen van der Zijp