mirror of
https://github.com/ENSL/NS.git
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436 lines
7.5 KiB
C++
436 lines
7.5 KiB
C++
//========= Copyright © 1996-2001, Valve LLC, All rights reserved. ============
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//
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// Purpose: New version of the slider bar
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//
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// $NoKeywords: $
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//=============================================================================
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#include "vgui_slider2.h"
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#include<VGUI_InputSignal.h>
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#include<VGUI_App.h>
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#include<VGUI_IntChangeSignal.h>
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#include<VGUI_MouseCode.h>
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using namespace vgui;
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namespace
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{
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class FooDefaultSliderSignal : public InputSignal
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{
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private:
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Slider2* _slider;
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public:
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FooDefaultSliderSignal(Slider2* slider)
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{
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_slider=slider;
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}
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public:
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void cursorMoved(int x,int y,Panel* panel)
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{
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_slider->privateCursorMoved(x,y,panel);
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}
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void cursorEntered(Panel* panel){}
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void cursorExited(Panel* panel){}
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void mouseDoublePressed(MouseCode code,Panel* panel){}
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void mousePressed(MouseCode code,Panel* panel)
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{
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_slider->privateMousePressed(code,panel);
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}
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void mouseReleased(MouseCode code,Panel* panel)
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{
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_slider->privateMouseReleased(code,panel);
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}
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void mouseWheeled(int delta,Panel* panel){}
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void keyPressed(KeyCode code,Panel* panel){}
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void keyTyped(KeyCode code,Panel* panel){}
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void keyReleased(KeyCode code,Panel* panel){}
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void keyFocusTicked(Panel* panel){}
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};
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}
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Slider2::Slider2(int x,int y,int wide,int tall,bool vertical) : Panel(x,y,wide,tall)
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{
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_vertical=vertical;
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_dragging=false;
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_value=0;
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_range[0]=0;
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_range[1]=299;
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_rangeWindow=0;
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_rangeWindowEnabled=false;
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_buttonOffset=0;
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recomputeNobPosFromValue();
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addInputSignal(new FooDefaultSliderSignal(this));
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}
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void Slider2::setSize(int wide,int tall)
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{
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Panel::setSize(wide,tall);
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recomputeNobPosFromValue();
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}
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bool Slider2::isVertical()
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{
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return _vertical;
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}
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void Slider2::setValue(int value)
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{
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int oldValue=_value;
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if(value<_range[0])
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{
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value=_range[0];
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}
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if(value>_range[1])
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{
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value=_range[1];
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}
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_value=value;
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recomputeNobPosFromValue();
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if(_value!=oldValue)
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{
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fireIntChangeSignal();
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}
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}
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int Slider2::getValue()
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{
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return _value;
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}
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void Slider2::recomputeNobPosFromValue()
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{
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int wide,tall;
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getPaintSize(wide,tall);
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float fwide=(float)wide;
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float ftall=(float)tall;
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float frange=(float)(_range[1]-_range[0]);
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float fvalue=(float)(_value-_range[0]);
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float fper=fvalue/frange;
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float frangewindow=(float)(_rangeWindow);
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if(frangewindow<0)
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{
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frangewindow=0;
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}
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if(!_rangeWindowEnabled)
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{
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frangewindow=frange;
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}
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if ( frangewindow > 0 )
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{
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if(_vertical)
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{
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float fnobsize=frangewindow;
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float freepixels = ftall - fnobsize;
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float firstpixel = freepixels * fper;
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_nobPos[0]=(int)( firstpixel );
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_nobPos[1]=(int)( firstpixel + fnobsize );
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if(_nobPos[1]>tall)
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{
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_nobPos[0]=tall-((int)fnobsize);
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_nobPos[1]=tall;
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}
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}
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else
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{
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float fnobsize=frangewindow;
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float freepixels = fwide - fnobsize;
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float firstpixel = freepixels * fper;
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_nobPos[0]=(int)( firstpixel );
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_nobPos[1]=(int)( firstpixel + fnobsize );
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if(_nobPos[1]>wide)
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{
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_nobPos[0]=wide-((int)fnobsize);
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_nobPos[1]=wide;
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}
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}
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}
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repaint();
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}
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void Slider2::recomputeValueFromNobPos()
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{
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int wide,tall;
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getPaintSize(wide,tall);
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float fwide=(float)wide;
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float ftall=(float)tall;
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float frange=(float)(_range[1]-_range[0]);
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float fvalue=(float)(_value-_range[0]);
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float fnob=(float)_nobPos[0];
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float frangewindow=(float)(_rangeWindow);
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if(frangewindow<0)
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{
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frangewindow=0;
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}
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if(!_rangeWindowEnabled)
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{
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frangewindow=frange;
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}
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if ( frangewindow > 0 )
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{
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if(_vertical)
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{
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float fnobsize=frangewindow;
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fvalue=frange*(fnob/(ftall-fnobsize));
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}
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else
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{
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float fnobsize=frangewindow;
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fvalue=frange*(fnob/(fwide-fnobsize));
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}
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}
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// Take care of rounding issues.
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_value=(int)(fvalue+_range[0]+0.5);
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// Clamp final result
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_value = ( _value < _range[1] ) ? _value : _range[1];
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}
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bool Slider2::hasFullRange()
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{
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int wide,tall;
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getPaintSize(wide,tall);
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float fwide=(float)wide;
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float ftall=(float)tall;
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float frange=(float)(_range[1]-_range[0]);
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float frangewindow=(float)(_rangeWindow);
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if(frangewindow<0)
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{
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frangewindow=0;
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}
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if(!_rangeWindowEnabled)
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{
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frangewindow=frange;
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}
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if ( frangewindow > 0 )
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{
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if(_vertical)
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{
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if( frangewindow <= ( ftall + _buttonOffset ) )
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{
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return true;
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}
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}
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else
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{
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if( frangewindow <= ( fwide + _buttonOffset ) )
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{
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return true;
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}
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}
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}
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return false;
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}
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void Slider2::addIntChangeSignal(IntChangeSignal* s)
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{
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_intChangeSignalDar.putElement(s);
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}
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void Slider2::fireIntChangeSignal()
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{
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for(int i=0;i<_intChangeSignalDar.getCount();i++)
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{
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_intChangeSignalDar[i]->intChanged(getValue(),this);
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}
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}
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void Slider2::paintBackground()
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{
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int wide,tall;
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getPaintSize(wide,tall);
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if (_vertical)
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{
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// background behind slider
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drawSetColor(40, 40, 40, 0);
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drawFilledRect(0, 0, wide, tall);
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// slider front
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drawSetColor(0, 0, 0, 0);
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drawFilledRect(0,_nobPos[0],wide,_nobPos[1]);
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// slider border
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drawSetColor(60, 60, 60, 0);
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drawFilledRect(0,_nobPos[0],wide,_nobPos[0]+1); // top
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drawFilledRect(0,_nobPos[1],wide,_nobPos[1]+1); // bottom
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drawFilledRect(0,_nobPos[0]+1,1,_nobPos[1]); // left
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drawFilledRect(wide-1,_nobPos[0]+1,wide,_nobPos[1]); // right
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}
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else
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{
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//!! doesn't work
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drawSetColor(Scheme::sc_secondary3);
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drawFilledRect(0,0,wide,tall);
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drawSetColor(Scheme::sc_black);
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drawOutlinedRect(0,0,wide,tall);
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drawSetColor(Scheme::sc_primary2);
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drawFilledRect(_nobPos[0],0,_nobPos[1],tall);
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drawSetColor(Scheme::sc_black);
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drawOutlinedRect(_nobPos[0],0,_nobPos[1],tall);
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}
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}
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void Slider2::setRange(int min,int max)
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{
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if(max<min)
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{
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max=min;
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}
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if(min>max)
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{
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min=max;
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}
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_range[0]=min;
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_range[1]=max;
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}
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void Slider2::getRange(int& min,int& max)
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{
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min=_range[0];
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max=_range[1];
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}
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void Slider2::privateCursorMoved(int x,int y,Panel* panel)
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{
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if(!_dragging)
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{
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return;
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}
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getApp()->getCursorPos(x,y);
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screenToLocal(x,y);
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int wide,tall;
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getPaintSize(wide,tall);
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if(_vertical)
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{
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_nobPos[0]=_nobDragStartPos[0]+(y-_dragStartPos[1]);
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_nobPos[1]=_nobDragStartPos[1]+(y-_dragStartPos[1]);
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if(_nobPos[1]>tall)
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{
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_nobPos[0]=tall-(_nobPos[1]-_nobPos[0]);
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_nobPos[1]=tall;
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}
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if(_nobPos[0]<0)
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{
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_nobPos[1]=_nobPos[1]-_nobPos[0];
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_nobPos[0]=0;
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}
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}
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else
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{
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_nobPos[0]=_nobDragStartPos[0]+(x-_dragStartPos[0]);
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_nobPos[1]=_nobDragStartPos[1]+(x-_dragStartPos[0]);
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if(_nobPos[1]>wide)
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{
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_nobPos[0]=wide-(_nobPos[1]-_nobPos[0]);
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_nobPos[1]=wide;
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}
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if(_nobPos[0]<0)
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{
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_nobPos[1]=_nobPos[1]-_nobPos[0];
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_nobPos[0]=0;
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}
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}
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recomputeValueFromNobPos();
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repaint();
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fireIntChangeSignal();
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}
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void Slider2::privateMousePressed(MouseCode code,Panel* panel)
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{
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int x,y;
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getApp()->getCursorPos(x,y);
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screenToLocal(x,y);
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if(_vertical)
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{
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if((y>=_nobPos[0])&&(y<_nobPos[1]))
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{
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_dragging=true;
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getApp()->setMouseCapture(this);
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_nobDragStartPos[0]=_nobPos[0];
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_nobDragStartPos[1]=_nobPos[1];
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_dragStartPos[0]=x;
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_dragStartPos[1]=y;
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}
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}
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else
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{
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if((x>=_nobPos[0])&&(x<_nobPos[1]))
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{
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_dragging=true;
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getApp()->setMouseCapture(this);
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_nobDragStartPos[0]=_nobPos[0];
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_nobDragStartPos[1]=_nobPos[1];
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_dragStartPos[0]=x;
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_dragStartPos[1]=y;
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}
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}
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}
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void Slider2::privateMouseReleased(MouseCode code,Panel* panel)
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{
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_dragging=false;
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getApp()->setMouseCapture(null);
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}
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void Slider2::getNobPos(int& min, int& max)
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{
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min=_nobPos[0];
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max=_nobPos[1];
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}
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void Slider2::setRangeWindow(int rangeWindow)
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{
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_rangeWindow=rangeWindow;
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}
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void Slider2::setRangeWindowEnabled(bool state)
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{
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_rangeWindowEnabled=state;
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}
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void Slider2::setButtonOffset(int buttonOffset)
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{
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_buttonOffset=buttonOffset;
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}
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