/* * Copyright (c) 1987, 1988, 1989, 1990, 1991 Stanford University * Copyright (c) 1991 Silicon Graphics, Inc. * * Permission to use, copy, modify, distribute, and sell this software and * its documentation for any purpose is hereby granted without fee, provided * that (i) the above copyright notices and this permission notice appear in * all copies of the software and related documentation, and (ii) the names of * Stanford and Silicon Graphics may not be used in any advertising or * publicity relating to the software without the specific, prior written * permission of Stanford and Silicon Graphics. * * THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, * EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY * WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. * * IN NO EVENT SHALL STANFORD OR SILICON GRAPHICS BE LIABLE FOR * ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, * OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, * WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF * LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE * OF THIS SOFTWARE. */ /* * Panner - an interactor for two-dimensional scrolling and zooming. */ #ifndef ivlook2_6_panner_h #define ivlook2_6_panner_h #include <IV-2_6/InterViews/scene.h> #include <IV-2_6/_enter.h> class Panner : public MonoScene { public: Panner(Interactor*, int size = 0); Panner(const char*, Interactor*, int size = 0); virtual ~Panner(); 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*); virtual ~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(IntCoord, IntCoord, IntCoord, IntCoord); private: Interactor* interactor; Perspective* view; Perspective* shown; IntCoord left, bottom, right, top; IntCoord prevl, prevb, prevr, prevt; // for smart update IntCoord llim, blim, rlim, tlim; // sliding limits boolean constrained, syncScroll; int moveType; IntCoord origx, origy; void Init(Interactor*); IntCoord ViewX(IntCoord); IntCoord ViewY(IntCoord); IntCoord SliderX(IntCoord); IntCoord SliderY(IntCoord); 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(IntCoord dx, IntCoord dy);// move view to reflect slider position void Slide(Event&); // rubberband rect while mousing void Jump(Event&); // for click outside knob }; #include <IV-2_6/_leave.h> #endif