52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
// Fl_Positioner.H
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// The positioner widget from Forms, gives 2D input
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#ifndef Fl_Positioner_H
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#define Fl_Positioner_H
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#ifndef Fl_Widget_H
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#include "Fl_Widget.H"
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#endif
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class Fl_Positioner : public Fl_Widget {
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double xmin, ymin;
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double xmax, ymax;
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double xvalue_, yvalue_;
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double xstep_, ystep_;
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protected:
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// these allow subclasses to put the dial in a smaller area:
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void draw(int, int, int, int);
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int handle(int, int, int, int, int);
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void draw();
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public:
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int handle(int);
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Fl_Positioner(int x,int y,int w,int h, const char *l=0);
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double xvalue() const {return xvalue_;}
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double yvalue() const {return yvalue_;}
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int xvalue(double);
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int yvalue(double);
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int value(double,double);
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void xbounds(double, double);
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double xminimum() const {return xmin;}
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void xminimum(double a) {xbounds(a,xmax);}
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double xmaximum() const {return xmax;}
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void xmaximum(double a) {xbounds(xmin,a);}
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void ybounds(double, double);
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double yminimum() const {return ymin;}
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void yminimum(double a) {ybounds(a,ymax);}
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double ymaximum() const {return ymax;}
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void ymaximum(double a) {ybounds(ymin,a);}
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void xstep(double a) {xstep_ = a;}
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void ystep(double a) {ystep_ = a;}
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};
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#endif
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