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CICA 1993 April
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CICA MS Windows - April 1993.iso
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misc
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iv26_w30
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intervie
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panner.h
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C/C++ Source or Header
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1980-01-03
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89 lines
/*
* Copyright (c) 1987, 1988, 1989 Stanford University
*
* Permission to use, copy, modify, distribute, and sell this software and its
* documentation for any purpose is hereby granted without fee, provided
* that the above copyright notice appear in all copies and that both that
* copyright notice and this permission notice appear in supporting
* documentation, and that the name of Stanford not be used in advertising or
* publicity pertaining to distribution of the software without specific,
* written prior permission. Stanford makes no representations about
* the suitability of this software for any purpose. It is provided "as is"
* without express or implied warranty.
*
* STANFORD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
* INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS.
* IN NO EVENT SHALL STANFORD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
* CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
* DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
* OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
* WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
/*
* Panner - an interactor for two-dimensional scrolling and zooming.
*/
#ifndef panner_h
#define panner_h
#include <InterViews/scene.h>
class Panner : public MonoScene {
public:
Panner(Interactor*, int size = 0);
Panner(const char*, Interactor*, int size = 0);
Panner(Interactor*, int size, Painter*);
protected:
int size;
virtual void Reconfig();
private:
Interactor* adjusters;
Interactor* slider;
void Init(Interactor*, int);
};
class Slider : public Interactor {
public:
Slider(Interactor*);
Slider(const char*, Interactor*);
Slider(Interactor*, Painter*);
~Slider();
virtual void Draw();
virtual void Handle(Event&);
virtual void Update();
virtual void Reshape(Shape&);
virtual void Resize();
protected:
virtual void Reconfig();
virtual void Redraw(Coord, Coord, Coord, Coord);
private:
Interactor* interactor;
Perspective* view;
Perspective* shown;
Coord left, bottom, right, top;
Coord prevl, prevb, prevr, prevt; // for smart update
Coord llim, blim, rlim, tlim; // sliding limits
boolean constrained, syncScroll;
int moveType;
Coord origx, origy;
void Init(Interactor*);
Coord ViewX(Coord);
Coord ViewY(Coord);
Coord SliderX(Coord);
Coord SliderY(Coord);
void CalcLimits(Event&); // calculate sliding limits
void SizeKnob(); // calculate size of slider knob
boolean Inside(Event&); // true if inside slider knob
void Constrain(Event&); // constrain slider knob motion
void Move(Coord dx, Coord dy); // move view to reflect slider position
void Slide(Event&); // rubberband rect while mousing
void Jump(Event&); // for click outside knob
};
#endif