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Visualizer_InputListener.h
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1 #ifndef SimTK_SIMBODY_VISUALIZER_INPUT_LISTENER_H_
2 #define SimTK_SIMBODY_VISUALIZER_INPUT_LISTENER_H_
3 
4 /* -------------------------------------------------------------------------- *
5  * Simbody(tm) *
6  * -------------------------------------------------------------------------- *
7  * This is part of the SimTK biosimulation toolkit originating from *
8  * Simbios, the NIH National Center for Physics-Based Simulation of *
9  * Biological Structures at Stanford, funded under the NIH Roadmap for *
10  * Medical Research, grant U54 GM072970. See https://simtk.org/home/simbody. *
11  * *
12  * Portions copyright (c) 2010-12 Stanford University and the Authors. *
13  * Authors: Peter Eastman, Michael Sherman *
14  * Contributors: *
15  * *
16  * Licensed under the Apache License, Version 2.0 (the "License"); you may *
17  * not use this file except in compliance with the License. You may obtain a *
18  * copy of the License at http://www.apache.org/licenses/LICENSE-2.0. *
19  * *
20  * Unless required by applicable law or agreed to in writing, software *
21  * distributed under the License is distributed on an "AS IS" BASIS, *
22  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. *
23  * See the License for the specific language governing permissions and *
24  * limitations under the License. *
25  * -------------------------------------------------------------------------- */
26 
33 
34 namespace SimTK {
35 
36 //==============================================================================
37 // INPUT LISTENER
38 //==============================================================================
48 public:
54 enum Modifier {
55  ShiftIsDown = 0x01,
56  ControlIsDown = 0x02,
57  AltIsDown = 0x04,
58  IsSpecialKey = 0xC0
59 };
60 
61 static const unsigned SpecialKeyOffset = 0x100; // Added to each code
62 
65 enum KeyCode {
66  KeyControlC = 3, // some notable ASCII codes
67  KeyBeep = 7,
68  KeyBackspace = 8,
69  KeyTab = 9,
70  KeyLF = 10,
71  KeyReturn = 13,
72  KeyEnter = KeyReturn,
73  KeyEsc = 27,
74  KeyDelete = 127,
75 
76  KeyF1 = SpecialKeyOffset + 1, // function keys
77  KeyF2 = SpecialKeyOffset + 2,
78  KeyF3 = SpecialKeyOffset + 3,
79  KeyF4 = SpecialKeyOffset + 4,
80  KeyF5 = SpecialKeyOffset + 5,
81  KeyF6 = SpecialKeyOffset + 6,
82  KeyF7 = SpecialKeyOffset + 7,
83  KeyF8 = SpecialKeyOffset + 8,
84  KeyF9 = SpecialKeyOffset + 9,
85  KeyF10 = SpecialKeyOffset + 10,
86  KeyF11 = SpecialKeyOffset + 11,
87  KeyF12 = SpecialKeyOffset + 12,
88 
89  KeyLeftArrow = SpecialKeyOffset + 100, // directional keys
90  KeyUpArrow = SpecialKeyOffset + 101,
91  KeyRightArrow = SpecialKeyOffset + 102,
92  KeyDownArrow = SpecialKeyOffset + 103,
93  KeyPageUp = SpecialKeyOffset + 104,
94  KeyPageDown = SpecialKeyOffset + 105,
95  KeyHome = SpecialKeyOffset + 106,
96  KeyEnd = SpecialKeyOffset + 107,
97  KeyInsert = SpecialKeyOffset + 108
98 };
99 
101 virtual ~InputListener() {}
102 
117 virtual bool keyPressed(unsigned key, unsigned modifiers) {return false;}
118 
125 virtual bool menuSelected(int menu, int item) {return false;}
126 
133 virtual bool sliderMoved(int slider, Real value) {return false;}
134 };
135 
136 
137 
138 //==============================================================================
139 // INPUT SILO
140 //==============================================================================
234 : public Visualizer::InputListener {
235 public:
237 InputSilo();
239 ~InputSilo();
240 
243 bool isAnyUserInput() const;
244 
248 void waitForAnyUserInput() const;
249 
262 bool takeKeyHit(unsigned& key, unsigned& modifiers);
263 
269 void waitForKeyHit(unsigned& key, unsigned& modifiers);
270 
283 bool takeMenuPick(int& menu, int& item);
284 
290 void waitForMenuPick(int& menu, int& item);
291 
305 bool takeSliderMove(int& slider, Real& value);
306 
312 void waitForSliderMove(int& slider, Real& value);
313 
315 void clear();
316 
317 //------------------------------------------------------------------------------
318  private:
319 // Each of these will return true to the Visualizer's listener thread, meaning
320 // that the input will be absorbed and subsequent listeners (if any) will not
321 // be called.
322 virtual bool keyPressed(unsigned key, unsigned modifiers);
323 virtual bool menuSelected(int menu, int item);
324 virtual bool sliderMoved(int slider, Real value);
325 
326 class Impl;
327 const Impl& getImpl() const {assert(m_impl); return *m_impl;}
328 Impl& updImpl() {assert(m_impl); return *m_impl;}
329 
330 Impl* m_impl; // the lone data member in this class
331 };
332 
333 } // namespace SimTK
334 
335 #endif // SimTK_SIMBODY_VISUALIZER_INPUT_LISTENER_H_
Declares the Visualizer class used for collecting Simbody simulation results for display and interact...
This is the top-level SimTK namespace into which all SimTK names are placed to avoid collision with o...
Definition: Assembler.h:37
Modifier
These represent modifications to the character that is passed into the keyPressed() method...
Definition: Visualizer_InputListener.h:54
This pre-built InputListener is extremely useful for processing user input that is intended to affect...
Definition: Visualizer_InputListener.h:233
Every Simbody header and source file should include this header before any other Simbody header...
SimTK_Real Real
This is the default compiled-in floating point type for SimTK, either float or double.
Definition: SimTKcommon/include/SimTKcommon/internal/common.h:577
virtual bool sliderMoved(int slider, Real value)
The user has moved one of the sliders you defined; here is the integer value you specified when you d...
Definition: Visualizer_InputListener.h:133
virtual bool menuSelected(int menu, int item)
The user has clicked one of the menu items you defined; here is the integer value you specified when ...
Definition: Visualizer_InputListener.h:125
KeyCode
These are the special keys that the Visualizer may report via the keyPressed() method.
Definition: Visualizer_InputListener.h:65
#define SimTK_SIMBODY_EXPORT
Definition: Simbody/include/simbody/internal/common.h:72
virtual bool keyPressed(unsigned key, unsigned modifiers)
This method is called when a user hits a keyboard key in the Visualizer window, unless that key is be...
Definition: Visualizer_InputListener.h:117
This abstract class defines methods to be called when the Visualizer reports user activity back to th...
Definition: Visualizer_InputListener.h:47
Provide simple visualization of and interaction with a Simbody simulation, with real time control of ...
Definition: Visualizer.h:146
virtual ~InputListener()
Destructor is virtual; be sure to override it if you need to clean up.
Definition: Visualizer_InputListener.h:101