comparison: src/basics.h
src/basics.h
- changeset 8
- 44679e468ba9
- parent 7
- 68443f5be176
- child 17
- a5111f4e6412
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| 7:68443f5be176 | 8:44679e468ba9 |
|---|---|
| 15 * You should have received a copy of the GNU General Public License | 15 * You should have received a copy of the GNU General Public License |
| 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. | 16 * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 17 */ | 17 */ |
| 18 | 18 |
| 19 #pragma once | 19 #pragma once |
| 20 #include <algorithm> | |
| 20 #include <cstdio> | 21 #include <cstdio> |
| 21 #include <cstdlib> | 22 #include <cstdlib> |
| 23 #include <cstring> | |
| 22 #include <cmath> | 24 #include <cmath> |
| 23 #include <QMatrix4x4> | 25 #include <QMatrix4x4> |
| 24 #include <QObject> | 26 #include <QObject> |
| 25 #include <QPointF> | 27 #include <QPointF> |
| 26 #include <QSet> | 28 #include <QSet> |
| 40 }; | 42 }; |
| 41 | 43 |
| 42 enum Winding | 44 enum Winding |
| 43 { | 45 { |
| 44 NoWinding, | 46 NoWinding, |
| 45 CounterClockwise, | 47 Anticlockwise, |
| 46 Clockwise, | 48 Clockwise, |
| 47 }; | 49 }; |
| 48 | 50 |
| 49 /* | 51 /* |
| 50 * Special operator definition that implements the XOR operator for windings. | 52 * Special operator definition that implements the XOR operator for windings. |
| 62 { | 64 { |
| 63 one = one ^ other; | 65 one = one ^ other; |
| 64 return one; | 66 return one; |
| 65 } | 67 } |
| 66 | 68 |
| 67 template<typename T, std::size_t N> | |
| 68 constexpr std::size_t countof(T(&)[N]) | |
| 69 { | |
| 70 return N; | |
| 71 } | |
| 72 | |
| 73 static constexpr long double pi = M_PIl; | 69 static constexpr long double pi = M_PIl; |
| 74 | |
| 75 // http://stackoverflow.com/a/18204188/3629665 | |
| 76 template<typename T> | |
| 77 inline auto rotl10(T x) | |
| 78 -> std::enable_if_t<std::is_arithmetic_v<T>, T> | |
| 79 { | |
| 80 return (x << 10) | ((x >> 22) & 0x000000ff); | |
| 81 } | |
| 82 | |
| 83 template<typename T> | |
| 84 inline auto rotl20(T x) | |
| 85 -> std::enable_if_t<std::is_arithmetic_v<T>, T> | |
| 86 { | |
| 87 return (x << 20) | ((x >> 12) & 0x000000ff); | |
| 88 } | |
| 89 | |
| 90 template<typename T, typename... Rest> | |
| 91 QString format(const QString& format_string, T&& arg, Rest&&... rest) | |
| 92 { | |
| 93 return format(format_string.arg(arg), std::forward<Rest>(rest)...); | |
| 94 } | |
| 95 | |
| 96 template<typename T> | |
| 97 QString format(const QString& format_string, T&& arg) | |
| 98 { | |
| 99 return format_string.arg(arg); | |
| 100 } | |
| 101 | |
| 102 inline QString quoted(QString string) | |
| 103 { | |
| 104 if (string.contains("'")) | |
| 105 { | |
| 106 string.replace("\"", "\\\""); | |
| 107 string = "\"" + string + "\""; | |
| 108 } | |
| 109 else | |
| 110 { | |
| 111 string = "'" + string + "'"; | |
| 112 } | |
| 113 return string; | |
| 114 } |
