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FXSlider.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                           S l i d e r   W i d g e t                           *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 1997,2004 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: FXSlider.h,v 1.35 2004/02/08 17:17:34 fox Exp $                          *
00023 ********************************************************************************/
00024 #ifndef FXSLIDER_H
00025 #define FXSLIDER_H
00026 
00027 #ifndef FXFRAME_H
00028 #include "FXFrame.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 
00034 
00035 /// Slider Control styles
00036 enum {
00037   SLIDER_HORIZONTAL   = 0,                        /// Slider shown horizontally
00038   SLIDER_VERTICAL     = 0x00008000,               /// Slider shown vertically
00039   SLIDER_ARROW_UP     = 0x00010000,               /// Slider has arrow head pointing up
00040   SLIDER_ARROW_DOWN   = 0x00020000,               /// Slider has arrow head pointing down
00041   SLIDER_ARROW_LEFT   = SLIDER_ARROW_UP,          /// Slider has arrow head pointing left
00042   SLIDER_ARROW_RIGHT  = SLIDER_ARROW_DOWN,        /// Slider has arrow head pointing right
00043   SLIDER_INSIDE_BAR   = 0x00040000,               /// Slider is inside the slot rather than overhanging
00044   SLIDER_TICKS_TOP    = 0x00080000,               /// Ticks on the top of horizontal slider
00045   SLIDER_TICKS_BOTTOM = 0x00100000,               /// Ticks on the bottom of horizontal slider
00046   SLIDER_TICKS_LEFT   = SLIDER_TICKS_TOP,         /// Ticks on the left of vertical slider
00047   SLIDER_TICKS_RIGHT  = SLIDER_TICKS_BOTTOM,      /// Ticks on the right of vertical slider
00048   SLIDER_NORMAL       = SLIDER_HORIZONTAL
00049   };
00050 
00051 
00052 
00053 /**
00054 * The slider widget is a valuator widget which provides simple linear value range.
00055 * Two visual appearances are supported:- the sunken look, which is enabled with
00056 * the SLIDER_INSIDE_BAR option and the regular look.  The latter may have optional
00057 * arrows on the slider thumb.
00058 * While being moved, the slider sends a SEL_CHANGED message to its target;
00059 * at the end of the interaction, a SEL_COMMAND message is sent.
00060 * The message data represents the current slider value, of type FXint.
00061 */
00062 class FXAPI FXSlider : public FXFrame {
00063   FXDECLARE(FXSlider)
00064 protected:
00065   FXint         range[2];                 // Reported data range
00066   FXint         pos;                      // Reported data position
00067   FXint         incr;                     // Increment when auto-sliding
00068   FXint         delta;                    // Interval between ticks
00069   FXint         headpos;                  // Head position
00070   FXint         headsize;                 // Head size
00071   FXint         slotsize;                 // Slot size
00072   FXColor       slotColor;                // Color of slot the head moves in
00073   FXint         dragpoint;                // Where the head is grabbed
00074   FXString      help;                     // Help string
00075   FXString      tip;                      // Tip string
00076 protected:
00077   FXSlider();
00078   FXint headPos(FXint v) const;
00079   FXint headVal(FXint p) const;
00080   void drawSliderHead(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00081   void drawHorzTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00082   void drawVertTicks(FXDCWindow& dc,FXint x,FXint y,FXint w,FXint h);
00083 private:
00084   FXSlider(const FXSlider&);
00085   FXSlider &operator=(const FXSlider&);
00086 public:
00087   long onPaint(FXObject*,FXSelector,void*);
00088   long onLeftBtnPress(FXObject*,FXSelector,void*);
00089   long onLeftBtnRelease(FXObject*,FXSelector,void*);
00090   long onMiddleBtnPress(FXObject*,FXSelector,void*);
00091   long onMiddleBtnRelease(FXObject*,FXSelector,void*);
00092   long onUngrabbed(FXObject*,FXSelector,void*);
00093   long onMotion(FXObject*,FXSelector,void*);
00094   long onAutoSlide(FXObject*,FXSelector,void*);
00095   long onCmdSetValue(FXObject*,FXSelector,void*);
00096   long onCmdSetIntValue(FXObject*,FXSelector,void*);
00097   long onCmdGetIntValue(FXObject*,FXSelector,void*);
00098   long onCmdSetRealValue(FXObject*,FXSelector,void*);
00099   long onCmdGetRealValue(FXObject*,FXSelector,void*);
00100   long onCmdSetIntRange(FXObject*,FXSelector,void*);
00101   long onCmdGetIntRange(FXObject*,FXSelector,void*);
00102   long onCmdSetRealRange(FXObject*,FXSelector,void*);
00103   long onCmdGetRealRange(FXObject*,FXSelector,void*);
00104   long onCmdSetHelp(FXObject*,FXSelector,void*);
00105   long onCmdGetHelp(FXObject*,FXSelector,void*);
00106   long onCmdSetTip(FXObject*,FXSelector,void*);
00107   long onCmdGetTip(FXObject*,FXSelector,void*);
00108   long onQueryHelp(FXObject*,FXSelector,void*);
00109   long onQueryTip(FXObject*,FXSelector,void*);
00110 public:
00111   enum{
00112     ID_AUTOSLIDE=FXFrame::ID_LAST,
00113     ID_LAST
00114     };
00115 public:
00116 
00117   /// Construct a slider widget
00118   FXSlider(FXComposite* p,FXObject* tgt=NULL,FXSelector sel=0,FXuint opts=SLIDER_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);
00119 
00120   /// Return default width
00121   virtual FXint getDefaultWidth();
00122 
00123   /// Return default height
00124   virtual FXint getDefaultHeight();
00125 
00126   /// Perform layout
00127   virtual void layout();
00128 
00129   /// Enable the slider
00130   virtual void enable();
00131 
00132   /// Disable the slider
00133   virtual void disable();
00134 
00135   /// Change slider value
00136   void setValue(FXint value);
00137 
00138   /// Return slider value
00139   FXint getValue() const { return pos; }
00140 
00141   /// Change the slider's range
00142   void setRange(FXint lo,FXint hi);
00143 
00144   /// Get the slider's current range
00145   void getRange(FXint& lo,FXint& hi) const { lo=range[0]; hi=range[1]; }
00146 
00147   /// Change the slider style
00148   FXuint getSliderStyle() const;
00149 
00150   /// Get the current slider style
00151   void setSliderStyle(FXuint style);
00152 
00153   /// Get the slider's head size
00154   FXint getHeadSize() const { return headsize; }
00155 
00156   /// Change the slider's head size
00157   void setHeadSize(FXint hs);
00158 
00159   /// Get the slider's current slot size
00160   FXint getSlotSize() const { return slotsize; }
00161 
00162   /// Change the slider's slot size
00163   void setSlotSize(FXint bs);
00164 
00165   /// Get the slider's auto-increment/decrement value
00166   FXint getIncrement() const { return incr; }
00167 
00168   /// Change the slider's auto-increment/decrement value
00169   void setIncrement(FXint inc);
00170 
00171   /// Change the delta between ticks
00172   void setTickDelta(FXint dist);
00173 
00174   /// Get delta between ticks
00175   FXint getTickDelta() const { return delta; }
00176 
00177   /// Change the color of the slot the slider head moves in
00178   void setSlotColor(FXColor clr);
00179 
00180   /// Get the current slot color
00181   FXColor getSlotColor() const { return slotColor; }
00182 
00183   /// Set the help text to be displayed on the status line
00184   void setHelpText(const FXString& text);
00185 
00186   /// Get the current help text
00187   FXString getHelpText() const { return help; }
00188 
00189   /// Set the tip text to be displayed in the tooltip
00190   void setTipText(const FXString& text);
00191 
00192   /// Get the current tooltip text value
00193   FXString getTipText() const { return tip; }
00194 
00195   /// Save to stream
00196   virtual void save(FXStream& store) const;
00197 
00198   /// Load from stream
00199   virtual void load(FXStream& store);
00200 
00201   /// Destroy the slider
00202   virtual ~FXSlider();
00203   };
00204 
00205 }
00206 
00207 #endif

Copyright © 1997-2004 Jeroen van der Zijp