qglcolormap.cpp

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4QGLColormap::QGLColormapData QGLColormap::shared_null = { { (1) }, 0, 0 }; -
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7 -
8 -
9QGLColormap::QGLColormap() -
10 : d(&shared_null) -
11{ -
12 d->ref.ref(); -
13}
never executed: }
0
14 -
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19QGLColormap::QGLColormap(const QGLColormap &map) -
20 : d(map.d) -
21{ -
22 d->ref.ref(); -
23}
never executed: }
0
24 -
25 -
26 -
27 -
28 -
29QGLColormap::~QGLColormap() -
30{ -
31 if (!d->ref.deref())
never evaluated: !d->ref.deref()
0
32 cleanup(d);
never executed: cleanup(d);
0
33}
never executed: }
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34 -
35void QGLColormap::cleanup(QGLColormap::QGLColormapData *x) -
36{ -
37 delete x->cells; -
38 x->cells = 0; -
39 delete x; -
40}
never executed: }
0
41 -
42 -
43 -
44 -
45QGLColormap & QGLColormap::operator=(const QGLColormap &map) -
46{ -
47 map.d->ref.ref(); -
48 if (!d->ref.deref())
never evaluated: !d->ref.deref()
0
49 cleanup(d);
never executed: cleanup(d);
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50 d = map.d; -
51 return *this;
never executed: return *this;
0
52} -
53void QGLColormap::detach_helper() -
54{ -
55 QGLColormapData *x = new QGLColormapData; -
56 x->ref.store(1); -
57 x->cmapHandle = 0; -
58 x->cells = 0; -
59 if (d->cells) {
never evaluated: d->cells
0
60 x->cells = new QVector<QRgb>(256); -
61 *x->cells = *d->cells; -
62 }
never executed: }
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63 if (!d->ref.deref())
never evaluated: !d->ref.deref()
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64 cleanup(d);
never executed: cleanup(d);
0
65 d = x; -
66}
never executed: }
0
67 -
68 -
69 -
70 -
71void QGLColormap::setEntry(int idx, QRgb color) -
72{ -
73 detach(); -
74 if (!d->cells)
never evaluated: !d->cells
0
75 d->cells = new QVector<QRgb>(256);
never executed: d->cells = new QVector<QRgb>(256);
0
76 d->cells->replace(idx, color); -
77}
never executed: }
0
78 -
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81 -
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84 -
85void QGLColormap::setEntries(int count, const QRgb *colors, int base) -
86{ -
87 detach(); -
88 if (!d->cells)
never evaluated: !d->cells
0
89 d->cells = new QVector<QRgb>(256);
never executed: d->cells = new QVector<QRgb>(256);
0
90 -
91 qt_noop(); -
92 -
93 for (int i = 0; i < count; ++i)
never evaluated: i < count
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94 setEntry(base + i, colors[i]);
never executed: setEntry(base + i, colors[i]);
0
95}
never executed: }
0
96 -
97 -
98 -
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100QRgb QGLColormap::entryRgb(int idx) const -
101{ -
102 if (d == &shared_null || !d->cells)
never evaluated: d == &shared_null
never evaluated: !d->cells
0
103 return 0;
never executed: return 0;
0
104 else -
105 return d->cells->at(idx);
never executed: return d->cells->at(idx);
0
106} -
107 -
108 -
109 -
110 -
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112 -
113void QGLColormap::setEntry(int idx, const QColor &color) -
114{ -
115 setEntry(idx, color.rgb()); -
116}
never executed: }
0
117 -
118 -
119 -
120 -
121QColor QGLColormap::entryColor(int idx) const -
122{ -
123 if (d == &shared_null || !d->cells)
never evaluated: d == &shared_null
never evaluated: !d->cells
0
124 return QColor();
never executed: return QColor();
0
125 else -
126 return QColor(d->cells->at(idx));
never executed: return QColor(d->cells->at(idx));
0
127} -
128bool QGLColormap::isEmpty() const -
129{ -
130 return d == &shared_null || d->cells == 0 || d->cells->size() == 0 || d->cmapHandle == 0;
never executed: return d == &shared_null || d->cells == 0 || d->cells->size() == 0 || d->cmapHandle == 0;
0
131} -
132 -
133 -
134 -
135 -
136 -
137int QGLColormap::size() const -
138{ -
139 return d->cells ? d->cells->size() : 0;
never executed: return d->cells ? d->cells->size() : 0;
0
140} -
141 -
142 -
143 -
144 -
145 -
146int QGLColormap::find(QRgb color) const -
147{ -
148 if (d->cells)
never evaluated: d->cells
0
149 return d->cells->indexOf(color);
never executed: return d->cells->indexOf(color);
0
150 return -1;
never executed: return -1;
0
151} -
152 -
153 -
154 -
155 -
156 -
157int QGLColormap::findNearest(QRgb color) const -
158{ -
159 int idx = find(color); -
160 if (idx >= 0)
never evaluated: idx >= 0
0
161 return idx;
never executed: return idx;
0
162 int mapSize = size(); -
163 int mindist = 200000; -
164 int r = qRed(color); -
165 int g = qGreen(color); -
166 int b = qBlue(color); -
167 int rx, gx, bx, dist; -
168 for (int i = 0; i < mapSize; ++i) {
never evaluated: i < mapSize
0
169 QRgb ci = d->cells->at(i); -
170 rx = r - qRed(ci); -
171 gx = g - qGreen(ci); -
172 bx = b - qBlue(ci); -
173 dist = rx * rx + gx * gx + bx * bx; -
174 if (dist < mindist) {
never evaluated: dist < mindist
0
175 mindist = dist; -
176 idx = i; -
177 }
never executed: }
0
178 }
never executed: }
0
179 return idx;
never executed: return idx;
0
180} -
181 -
182 -
183 -
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