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00001 /******************************************************************************** 00002 * * 00003 * C o l o r W h e e l W i d g e t * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 2001,2002 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 1.15 2002/01/18 22:42:51 jeroen Exp $ * 00023 ********************************************************************************/ 00024 #ifndef FXCOLORWHEEL_H 00025 #define FXCOLORWHEEL_H 00026 00027 #ifndef FXFRAME_H 00028 #include "FXFrame.h" 00029 #endif 00030 00031 00032 00033 class FXImage; 00034 00035 00036 /** 00037 * A color wheel is a widget which controls a color by means 00038 * of the hue, saturation, value color specification system. 00039 */ 00040 class FXAPI FXColorWheel : public FXFrame { 00041 FXDECLARE(FXColorWheel) 00042 protected: 00043 FXImage *dial; // HSV dial image 00044 FXfloat hsv[3]; // Hue, saturation, value 00045 FXint spotx; // Spot x location 00046 FXint spoty; // Spot Y location 00047 FXint dialx; // Dial x location 00048 FXint dialy; // Dial Y location 00049 FXString tip; // Tooltip value 00050 FXString help; // Help value 00051 protected: 00052 FXColorWheel(); 00053 void updatedial(); 00054 void movespot(FXint x,FXint y); 00055 FXbool hstoxy(FXint& x,FXint& y,FXfloat h,FXfloat s) const; 00056 FXbool xytohs(FXfloat& h,FXfloat& s,FXint x,FXint y) const; 00057 virtual void layout(); 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 onQueryHelp(FXObject*,FXSelector,void*); 00067 long onQueryTip(FXObject*,FXSelector,void*); 00068 public: 00069 00070 /// Construct color well with initial color clr 00071 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); 00072 00073 /// Create server-side resources 00074 virtual void create(); 00075 00076 /// Detach server-side resources 00077 virtual void detach(); 00078 00079 /// Return default width 00080 virtual FXint getDefaultWidth(); 00081 00082 /// Return default height 00083 virtual FXint getDefaultHeight(); 00084 00085 /// Change hue 00086 void setHue(FXfloat h); 00087 00088 /// Return hue 00089 FXfloat getHue() const { return hsv[0]; } 00090 00091 /// Change saturation 00092 void setSat(FXfloat s); 00093 00094 /// Return saturation 00095 FXfloat getSat() const { return hsv[1]; } 00096 00097 /// Change value 00098 void setVal(FXfloat v); 00099 00100 /// Return value 00101 FXfloat getVal() const { return hsv[2]; } 00102 00103 /// Set status line help text for this color well 00104 void setHelpText(const FXString& text); 00105 00106 /// Get status line help text for this color well 00107 FXString getHelpText() const { return help; } 00108 00109 /// Set tool tip message for this color well 00110 void setTipText(const FXString& text); 00111 00112 /// Get tool tip message for this color well 00113 FXString getTipText() const { return tip; } 00114 00115 /// Save color well to a stream 00116 virtual void save(FXStream& store) const; 00117 00118 /// Load color well from a stream 00119 virtual void load(FXStream& store); 00120 00121 /// Destructor 00122 virtual ~FXColorWheel(); 00123 }; 00124 00125 00126 #endif