Main Page   Class Hierarchy   Alphabetical List   Compound List   File List   Compound Members

FXColorWheel.h

00001 /********************************************************************************
00002 *                                                                               *
00003 *                        C o l o r W h e e l   W i d g e t                      *
00004 *                                                                               *
00005 *********************************************************************************
00006 * Copyright (C) 2001,2004 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: FXColorWheel.h,v 1.23 2004/02/08 17:17:33 fox Exp $                      *
00023 ********************************************************************************/
00024 #ifndef FXCOLORWHEEL_H
00025 #define FXCOLORWHEEL_H
00026 
00027 #ifndef FXFRAME_H
00028 #include "FXFrame.h"
00029 #endif
00030 
00031 namespace FX {
00032 
00033 
00034 class FXImage;
00035 
00036 
00037 /**
00038 * A color wheel is a widget which controls a color by means
00039 * of the hue, saturation, value color specification system.
00040 */
00041 class FXAPI FXColorWheel : public FXFrame {
00042   FXDECLARE(FXColorWheel)
00043 protected:
00044   FXImage  *dial;         // HSV dial image
00045   FXfloat   hsv[3];       // Hue, saturation, value
00046   FXint     spotx;        // Spot x location
00047   FXint     spoty;        // Spot Y location
00048   FXint     dialx;        // Dial x location
00049   FXint     dialy;        // Dial Y location
00050   FXString  tip;          // Tooltip value
00051   FXString  help;         // Help value
00052 protected:
00053   FXColorWheel();
00054   void updatedial();
00055   void movespot(FXint x,FXint y);
00056   FXbool hstoxy(FXint& x,FXint& y,FXfloat h,FXfloat s) const;
00057   FXbool xytohs(FXfloat& h,FXfloat& s,FXint x,FXint y) const;
00058 private:
00059   FXColorWheel(const FXColorWheel&);
00060   FXColorWheel &operator=(const FXColorWheel&);
00061 public:
00062   long onPaint(FXObject*,FXSelector,void*);
00063   long onLeftBtnPress(FXObject*,FXSelector,void*);
00064   long onLeftBtnRelease(FXObject*,FXSelector,void*);
00065   long onMotion(FXObject*,FXSelector,void*);
00066   long onMouseWheel(FXObject*,FXSelector,void*);
00067   long onCmdSetHelp(FXObject*,FXSelector,void*);
00068   long onCmdGetHelp(FXObject*,FXSelector,void*);
00069   long onCmdSetTip(FXObject*,FXSelector,void*);
00070   long onCmdGetTip(FXObject*,FXSelector,void*);
00071   long onQueryHelp(FXObject*,FXSelector,void*);
00072   long onQueryTip(FXObject*,FXSelector,void*);
00073 public:
00074 
00075   /// Construct color well with initial color clr
00076   FXColorWheel(FXComposite* p,FXObject* tgt=NULL,FXSelector sel=0,FXuint opts=FRAME_NORMAL,FXint x=0,FXint y=0,FXint w=0,FXint h=0,FXint pl=DEFAULT_PAD,FXint pr=DEFAULT_PAD,FXint pt=DEFAULT_PAD,FXint pb=DEFAULT_PAD);
00077 
00078   /// Create server-side resources
00079   virtual void create();
00080 
00081   /// Detach server-side resources
00082   virtual void detach();
00083 
00084   /// Perform layout
00085   virtual void layout();
00086 
00087   /// Return default width
00088   virtual FXint getDefaultWidth();
00089 
00090   /// Return default height
00091   virtual FXint getDefaultHeight();
00092 
00093   /// Change hue
00094   void setHue(FXfloat h);
00095 
00096   /// Return hue
00097   FXfloat getHue() const { return hsv[0]; }
00098 
00099   /// Change saturation
00100   void setSat(FXfloat s);
00101 
00102   /// Return saturation
00103   FXfloat getSat() const { return hsv[1]; }
00104 
00105   /// Change value
00106   void setVal(FXfloat v);
00107 
00108   /// Return value
00109   FXfloat getVal() const { return hsv[2]; }
00110 
00111   /// Set status line help text for this color well
00112   void setHelpText(const FXString& text);
00113 
00114   /// Get status line help text for this color well
00115   FXString getHelpText() const { return help; }
00116 
00117   /// Set tool tip message for this color well
00118   void setTipText(const FXString& text);
00119 
00120   /// Get tool tip message for this color well
00121   FXString getTipText() const { return tip; }
00122 
00123   /// Save color well to a stream
00124   virtual void save(FXStream& store) const;
00125 
00126   /// Load color well from a stream
00127   virtual void load(FXStream& store);
00128 
00129   /// Destructor
00130   virtual ~FXColorWheel();
00131   };
00132 
00133 }
00134 
00135 #endif

Copyright © 1997-2004 Jeroen van der Zijp