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00001 /******************************************************************************** 00002 * * 00003 * C o l o r R i n g W i d g e t * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 2005,2006 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: FXColorRing.h,v 1.11 2006/01/22 17:57:59 fox Exp $ * 00023 ********************************************************************************/ 00024 #ifndef FXCOLORRING_H 00025 #define FXCOLORRING_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 Ring widget provides an intuitive way to specify a color. 00039 * The outer ring of the widget is rotated to control the hue of the color 00040 * being specified, while the inner triangle varies the color saturation 00041 * and the brightness of the color. The color saturation axis of the 00042 * triangle goes from a fully saturated "pure" color to "pastel" color; 00043 * the brightness goes from black to a bright color. 00044 */ 00045 class FXAPI FXColorRing : public FXFrame { 00046 FXDECLARE(FXColorRing) 00047 protected: 00048 FXImage *dial; // HSV dial image 00049 FXfloat hsv[3]; // Hue, saturation, value 00050 FXint ringwidth; // Width of hue ring 00051 FXint ringouter; // Outer radius 00052 FXint ringinner; // Inner radius 00053 FXint dialx; // Dial x location 00054 FXint dialy; // Dial y location 00055 FXint satvalx; // Saturation value x 00056 FXint satvaly; // Saturation value y 00057 FXint huex; // Hue x 00058 FXint huey; // Hue y 00059 FXint clrx; // Color corner of triangle 00060 FXint clry; 00061 FXint blkx; // Black corner of triangle 00062 FXint blky; 00063 FXint whtx; // White corner of triangle 00064 FXint whty; 00065 FXString tip; // Tooltip value 00066 FXString help; // Help value 00067 FXuchar mode; // Mode widget is in 00068 protected: 00069 FXColorRing(); 00070 void updatering(); 00071 FXfloat hueFromXY(FXint x,FXint y) const; 00072 void hueToXY(FXint& x,FXint& y,FXfloat hue) const; 00073 void satValToXY(FXint& x,FXint& y,FXfloat s,FXfloat v) const; 00074 void satValFromXY(FXfloat& s,FXfloat& v,FXint x,FXint y) const; 00075 FXbool inCorner(FXint x,FXint y) const; 00076 FXbool inHueRing(FXint x,FXint y) const; 00077 FXbool inTriangle(FXint x,FXint y) const; 00078 protected: 00079 enum { 00080 MOUSE_NONE, // No mouse operation 00081 MOUSE_HUE, // Moving in hue-ring 00082 MOUSE_SATVAL // Moving in saturation/value triangle 00083 }; 00084 private: 00085 FXColorRing(const FXColorRing&); 00086 FXColorRing &operator=(const FXColorRing&); 00087 public: 00088 long onPaint(FXObject*,FXSelector,void*); 00089 long onLeftBtnPress(FXObject*,FXSelector,void*); 00090 long onLeftBtnRelease(FXObject*,FXSelector,void*); 00091 long onMotion(FXObject*,FXSelector,void*); 00092 long onMouseWheel(FXObject*,FXSelector,void*); 00093 long onCmdSetHelp(FXObject*,FXSelector,void*); 00094 long onCmdGetHelp(FXObject*,FXSelector,void*); 00095 long onCmdSetTip(FXObject*,FXSelector,void*); 00096 long onCmdGetTip(FXObject*,FXSelector,void*); 00097 long onQueryHelp(FXObject*,FXSelector,void*); 00098 long onQueryTip(FXObject*,FXSelector,void*); 00099 public: 00100 00101 /// Construct color ring with initial color clr 00102 FXColorRing(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); 00103 00104 /// Create server-side resources 00105 virtual void create(); 00106 00107 /// Detach server-side resources 00108 virtual void detach(); 00109 00110 /// Perform layout 00111 virtual void layout(); 00112 00113 /// Return default width 00114 virtual FXint getDefaultWidth(); 00115 00116 /// Return default height 00117 virtual FXint getDefaultHeight(); 00118 00119 /// Change hue 00120 void setHue(FXfloat h); 00121 00122 /// Return hue 00123 FXfloat getHue() const { return hsv[0]; } 00124 00125 /// Change saturation 00126 void setSat(FXfloat s); 00127 00128 /// Return saturation 00129 FXfloat getSat() const { return hsv[1]; } 00130 00131 /// Change value 00132 void setVal(FXfloat v); 00133 00134 /// Return value 00135 FXfloat getVal() const { return hsv[2]; } 00136 00137 /// Set hue, saturation, value 00138 void setHueSatVal(FXfloat h,FXfloat s,FXfloat v); 00139 00140 /// Change width of hue ring 00141 void setRingWidth(FXint rw); 00142 00143 /// Return width of hue ring 00144 FXint getRingWidth() const { return ringwidth; } 00145 00146 /// Set status line help text for this color well 00147 void setHelpText(const FXString& text){ help=text; } 00148 00149 /// Get status line help text for this color well 00150 const FXString& getHelpText() const { return help; } 00151 00152 /// Set tool tip message for this color well 00153 void setTipText(const FXString& text){ tip=text; } 00154 00155 /// Get tool tip message for this color well 00156 const FXString& getTipText() const { return tip; } 00157 00158 /// Save color well to a stream 00159 virtual void save(FXStream& store) const; 00160 00161 /// Load color well from a stream 00162 virtual void load(FXStream& store); 00163 00164 /// Destructor 00165 virtual ~FXColorRing(); 00166 }; 00167 00168 } 00169 00170 #endif
Copyright © 1997-2005 Jeroen van der Zijp |