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LibN2L-4 Library Code Reference

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gui

cGuiSlider.h

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00001 /************************************************************************
00002 Nova-2 Library (libN2L, or simply n2l) Game development C++ Library
00003 Copyright (C) 2002  Aaron Cameron
00004 
00005 This library is free software; you can redistribute it and/or
00006 modify it under the terms of the GNU Lesser General Public
00007 License as published by the Free Software Foundation; either
00008 version 2.1 of the License, or (at your option) any later version.
00009 
00010 This library is distributed in the hope that it will be useful,
00011 but WITHOUT ANY WARRANTY; without even the implied warranty of
00012 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013 Lesser General Public License for more details.
00014 
00015 You should have received a copy of the GNU Lesser General Public
00016 License along with this library; if not, write to the Free Software
00017 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
00018 
00019 A copy of the GNU Lesser General Public License has been provided with
00020 this library in the file 'COPYING'.
00021 
00022 Contact information for the author of this library has been provided
00023 with this library in the file 'AUTHOR'.
00024 ************************************************************************/
00025 #ifndef _n2l4_cGuiSlider_H
00026 #define _n2l4_cGuiSlider_H
00027 
00028 #include "n2l/n2l.h"
00029 
00030 #include "gui/cGuiInteractive.h"
00031 #include "gui/types.h"
00032 #include "gui/cGuiFill.h"
00033 
00034 /******************************************************************************/
00035 namespace n2l
00036 {
00037     class cVfsNodeInterface;
00038     class cDynVar;
00039     class cMouseButtonEvent;
00040     class cEventInterface;
00041 
00046     class cGuiSlider : public cGuiInteractive
00047     {
00048     public:
00049         typedef tFloat tValue;
00050     
00051         typedef enum {
00052             Align_Horizontal,
00053             Align_Vertical,
00054 
00055             Align_NumAlignments
00056         } tAlignment;
00057 
00058         typedef enum {
00059             State_Normal,
00060             State_Over,
00061             State_Down,
00062 
00063             State_NumStates
00064         } tState;
00065 
00066         typedef enum {
00067             Prop_Background,
00068             Prop_Slider,
00069             
00070             Prop_NumProps
00071         } tProp;
00072 
00073         cGuiSlider();
00074         cGuiSlider( const cVfsNodeInterface &iNode );
00075         cGuiSlider( const cDynVar &iDefinition );
00076         virtual ~cGuiSlider();
00077 
00078         virtual void load( const cVfsNodeInterface &iNode );
00079         virtual void load( const cDynVar &iDefinition );
00080 
00081         virtual void draw() const;
00082         virtual void align( const tAlignment iAlign );
00083 
00084         virtual void fill( const tProp iProp, const tState iState,
00085             const cGuiFill &iFill );
00086 
00087         virtual void alignment( const tAlignment iAlignment );
00088 
00089         virtual void min( const tValue &iValue );
00090         virtual void value( const tValue &iValue );
00091         virtual const tValue &value() const;
00092         virtual void range( const tValue &iValue );
00093         virtual void max( const tValue &iValue );
00094 
00095         virtual void swapWheel( const tBool iSwap );
00096         virtual const tBool swapWheel() const;
00097 
00098         virtual const tValue &min() const;
00099         virtual const tValue &max() const;
00100         virtual const tValue &range() const;
00101 
00102         virtual void scrollRangePCent( const tFloat &iPCent );
00103 
00107         virtual void scrollPlus();
00108         virtual void scrollMinus();
00109 
00110         virtual const cAutoPtr<cGuiElement> clone() const;
00111 
00112         virtual void systemEvent(
00113             const cAutoPtr<const cEventInterface> &i_iEvent );
00114 
00115     protected:
00116         virtual void cloneInto(
00117             const cAutoPtr<cGuiSlider> &i_ioElement ) const;
00118         virtual void dimensionChanged();
00119 
00120         virtual void mouseClickAt( const cMouseButtonEvent &iClick );
00121         virtual void mouseMove( const tGuiPos &iPos );
00122 
00123     private:
00124 
00125         tValue mMin,mMax,mValue,mRange,mRequestedRange;
00126     
00127         tAlignment mAlignment;
00128 
00132         tBool mSwapWheel;
00133 
00134         cGuiFill mFills[Prop_NumProps][State_NumStates];
00135 
00136         // These members are caching elements only
00137         tGuiPos mSliderPos;
00138         tGuiPos mSliderSize;
00139         tFloat mValueToPosScale;
00140 
00141         // States
00142         tBool mOverSlider;
00143         tBool mDownOnSlider;
00144         tGuiPos mDownOffset;
00145 
00146 #       ifdef N2L_PASSIVE_GUI_REG
00147             static tBool smRegistered;
00148 #       endif
00149 
00150     }; // class
00151 
00152 } // namespace n2l
00153 
00154 #endif
©2012 Aaron Cameron