/* * Copyright (c) 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. */ /* * Adjustable - object to scroll and/or zoom */ #ifndef iv_adjust_h #define iv_adjust_h #include <InterViews/geometry.h> #include <InterViews/_enter.h> class Observable; class Observer; struct AdjustableImpl; class Adjustable { public: Adjustable(); virtual ~Adjustable(); virtual Observable* observable(DimensionName) const; virtual void attach(DimensionName, Observer*); virtual void detach(DimensionName, Observer*); virtual Coord lower(DimensionName) const; virtual Coord upper(DimensionName) const; virtual Coord length(DimensionName) const; virtual Coord cur_lower(DimensionName) const; virtual Coord cur_upper(DimensionName) const; virtual Coord cur_length(DimensionName) const; virtual void small_scroll(DimensionName, Coord); virtual Coord small_scroll(DimensionName) const; virtual void large_scroll(DimensionName, Coord); virtual Coord large_scroll(DimensionName) const; virtual void begin_adjustment(DimensionName); virtual void commit_adjustment(DimensionName); virtual void abort_adjustment(DimensionName); virtual void scroll_forward(DimensionName); virtual void scroll_backward(DimensionName); virtual void page_forward(DimensionName); virtual void page_backward(DimensionName); virtual void scroll_to(DimensionName, Coord lower); virtual void scale_to(DimensionName, float fraction_visible); virtual void zoom_to(float magnification); virtual void constrain(DimensionName, Coord& lower) const; virtual void notify(DimensionName) const; virtual void notify_all() const; private: AdjustableImpl* impl_; }; #include <InterViews/_leave.h> #endif