openscenegraph
osgWidget/Input
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1/* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2008 Robert Osfield
2 *
3 * This library is open source and may be redistributed and/or modified under
4 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
5 * (at your option) any later version. The full license is in LICENSE file
6 * included with this distribution, and on the openscenegraph.org website.
7 *
8 * This library is distributed in the hope that it will be useful,
9 * but WITHOUT ANY WARRANTY; without even the implied warranty of
10 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
11 * OpenSceneGraph Public License for more details.
12*/
13
14// Code by: Jeremy Moles (cubicool) 2007-2008
15
16#ifndef OSGWIDGET_INPUT
17#define OSGWIDGET_INPUT
18
19#include <osgWidget/Label>
20
21namespace osgWidget {
22
23// This is a string of values we use to try and determine the best Y
24// descent value (yoffset); you're welcome to use what works best for
25// your font.
26const std::string DESCENT_STRING("qpl");
27
28class OSGWIDGET_EXPORT Input: public Label
29{
30 public:
31
32 Input(const std::string& = "", const std::string& = "", unsigned int = 20);
33
34 virtual void parented (Window*);
35 virtual void positioned ();
36
37 virtual bool focus (const WindowManager*);
38 virtual bool unfocus (const WindowManager*);
39 virtual bool keyUp (int, int, const WindowManager*);
40 virtual bool keyDown (int, int, const WindowManager*);
41 virtual bool mouseDrag (double, double, const WindowManager*);
42 virtual bool mousePush (double x, double y, const WindowManager*);
43 virtual bool mouseRelease (double, double, const WindowManager*);
44
45 void setCursor (Widget*);
46 unsigned int calculateBestYOffset (const std::string& = "qgl");
47 void clear();
48
49 void setXOffset(point_type xo) {
50 _xoff = xo;
51 }
52
53 void setYOffset(point_type yo) {
54 _yoff = yo;
55 }
56
57 void setXYOffset(point_type xo, point_type yo) {
58 _xoff = xo;
59 _yoff = yo;
60 }
61
62 osg::Drawable* getCursor() {
63 return _cursor.get();
64 }
65
66 const osg::Drawable* getCursor() const {
67 return _cursor.get();
68 }
69
70 point_type getXOffset() const {
71 return _xoff;
72 }
73
74 point_type getYOffset() const {
75 return _yoff;
76 }
77
78 XYCoord getXYOffset() const {
79 return XYCoord(_xoff, _yoff);
80 }
81
82 protected:
83 virtual void _calculateSize(const XYCoord&);
84
85 void _calculateCursorOffsets();
86
87 point_type _xoff;
88 point_type _yoff;
89
90 unsigned int _index;
91 unsigned int _size;
92 unsigned int _cursorIndex;
93 unsigned int _maxSize;
94
95 std::vector<point_type> _offsets;
96 std::vector<unsigned int> _wordsOffsets;
97 std::vector<point_type> _widths;
98 osg::ref_ptr<Widget> _cursor;
99
100 bool _insertMode; // Insert was pressed --> true --> typing will overwrite existing text
101
102 osg::ref_ptr<Widget> _selection;
103 unsigned int _selectionStartIndex;
104 unsigned int _selectionEndIndex;
105 unsigned int _selectionIndex;
106
107 point_type _mouseClickX;
108};
109
110}
111
112#endif