Developer Documentation

matrix4x4Widget.cc
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40 \*===========================================================================*/
41
42
43
44 //== INCLUDES =================================================================
45 #include <QGridLayout>
46 #include <QLineEdit>
47 #include <QLabel>
48
49 #include "matrix4x4Widget.hh"
50
51 //== NAMESPACES ===============================================================
52 namespace VSI {
53
54 //=============================================================================
55 //
56 // CLASS VSI::Matrix4x4Widget - IMPLEMENTATION
57 //
58 //=============================================================================
59
61 Matrix4x4Widget::Matrix4x4Widget(QMap< QString, QString > &_hints, QString _typeName, QWidget *_parent) :
62 TypeWidget (_hints, _typeName, _parent)
63 {
64 bool ok;
65
66 QGridLayout *gL = new QGridLayout;
67
68 for (int i = 0; i < 16; i++)
69 {
70 default_[i] = 0.0;
71 if (i%5 == 0) //set diagonal to 1, convenient for e.g. transformation matrices
72 default_[i] = 1.0;
73 }
74
75 ok = true;
76 if (_hints.contains ("default"))
77 {
78 QStringList sl = _hints["default"].split (',');
79
80 if (sl.length () == 16)
81 {
82 for (int i = 0; i < 16 && ok; i++)
83 default_[i] = sl[i].toFloat (&ok);
84
85 if (!ok)
86 for (int i = 0; i < 16; i++)
87 default_[i] = 0.0;
88 }
89 }
90
91 for (int i = 0; i < 16; i++)
92 fields_[i] = new QLineEdit;
93
94 for (int i = 0; i < 4; i++)
95 {
96 gL->addWidget (new QLabel ("("),i, 0);
97 gL->addWidget (fields_[i], i, 1);
98 gL->addWidget (new QLabel (","), i, 2);
99 gL->addWidget (fields_[i + 4], i, 3);
100 gL->addWidget (new QLabel (","), i, 4);
101 gL->addWidget (fields_[i + 8], i, 5);
102 gL->addWidget (new QLabel (","), i, 6);
103 gL->addWidget (fields_[i + 12], i, 7);
104 gL->addWidget (new QLabel (")"), i, 8);
105 }
106
107 for (int i = 0; i < 16; i++)
108 {
109 fields_[i]->setText (QString::number (default_[i]));
110 connect (fields_[i], SIGNAL (editingFinished ()), this, SLOT (editingFinished ()));
111 }
112
113 setLayout (gL);
114
115 for (int i = 0; i < 16; i++)
116 current_[i] = default_[i];
117 }
118
120 Matrix4x4Widget::~ Matrix4x4Widget()
121 {
122 }
123
124 //------------------------------------------------------------------------------
125
127 QString Matrix4x4Widget::toValue()
128 {
129 QString rv = "Matrix4x4 (";
130 for (int i = 0; i < 16; i++)
131 rv += QString::number (current_[i]) + ",";
132
133 rv.remove (rv.length () - 1, 1);
134 rv += ")";
135 return rv;
136 }
137
138 //------------------------------------------------------------------------------
139
141 void Matrix4x4Widget::fromValue(QString _from)
142 {
143 if (_from.startsWith ("Matrix4x4 ("))
144 _from.remove (0, 11);
145 if (_from.endsWith (")"))
146 _from.remove (_from.length () - 1, 1);
147
148 QStringList sl = _from.split (',');
149
150 float v[16];
151 bool ok = true;
152
153 if (sl.length () == 16)
154 {
155 for (int i = 0; i < 16 && ok; i++)
156 v[i] = sl[i].toFloat (&ok);
157
158 if (ok)
159 for (int i = 0; i < 16; i++)
160 {
161 current_[i] = v[i];
162 fields_[i]->setText (QString::number (current_[i]));
163 }
164 }
165 }
166
167 //------------------------------------------------------------------------------
168
169 // handle slider changes
170 void Matrix4x4Widget::editingFinished ()
171 {
172 bool ok;
173
174 for (int i = 0; i < 16; i++)
175 {
176 const float v = fields_[i]->text ().toFloat (&ok);
177
178 if (ok)
179 current_[i] = v;
180 else
181 fields_[i]->setText (QString::number (current_[i]));
182 }
183 }
184
185
186
187 //------------------------------------------------------------------------------
188
190 void Matrix4x4Widget::toDefault()
191 {
192 for (int i = 0; i < 16; i++)
193 {
194 current_[i] = default_[i];
195 fields_[i]->setText (QString::number (current_[i]));
196 }
197 }
198
199 //------------------------------------------------------------------------------
200 }
201
VSI::Matrix4x4Widget::Matrix4x4Widget
Matrix4x4Widget(QMap< QString, QString > &_hints, QString _typeName, QWidget *_parent=NULL)
Constructor.
Definition: matrix4x4Widget.cc:61
VSI::Matrix4x4Widget::fromValue
void fromValue(QString _from) override
Read value from string.
Definition: matrix4x4Widget.cc:141
VSI::Matrix4x4Widget::toDefault
void toDefault() override
Reset to default.
Definition: matrix4x4Widget.cc:190
VSI::TypeWidget
Definition: typeWidget.hh:59
VSI::Matrix4x4Widget::toValue
QString toValue() override
Convert current value to string.
Definition: matrix4x4Widget.cc:127
VSI
Definition: baseWidget.cc:72