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-rw-r--r--src/gui/painting/qcolor.cpp323
1 files changed, 323 insertions, 0 deletions
diff --git a/src/gui/painting/qcolor.cpp b/src/gui/painting/qcolor.cpp
index 56180af693..650ba0187e 100644
--- a/src/gui/painting/qcolor.cpp
+++ b/src/gui/painting/qcolor.cpp
@@ -43,6 +43,9 @@
#include "qdatastream.h"
#include "qvariant.h"
#include "qdebug.h"
+#include "private/qtools_p.h"
+
+#include <algorithm>
#include <stdio.h>
#include <limits.h>
@@ -50,6 +53,326 @@
QT_BEGIN_NAMESPACE
/*!
+ \internal
+ If s[0..1] is a valid hex number, returns its integer value,
+ otherwise returns -1.
+ */
+static inline int hex2int(const char *s)
+{
+ const int hi = QtMiscUtils::fromHex(s[0]);
+ if (hi < 0)
+ return -1;
+ const int lo = QtMiscUtils::fromHex(s[1]);
+ if (lo < 0)
+ return -1;
+ return (hi << 4) | lo;
+}
+
+/*!
+ \internal
+ If s is a valid hex digit, returns its integer value,
+ multiplied by 0x11, otherwise returns -1.
+ */
+static inline int hex2int(char s)
+{
+ const int h = QtMiscUtils::fromHex(s);
+ return h < 0 ? h : (h << 4) | h;
+}
+
+bool qt_get_hex_rgb(const char *name, QRgb *rgb)
+{
+ if (name[0] != '#')
+ return false;
+ name++;
+ int len = qstrlen(name);
+ int a, r, g, b;
+ a = 255;
+ if (len == 12) {
+ r = hex2int(name);
+ g = hex2int(name + 4);
+ b = hex2int(name + 8);
+ } else if (len == 9) {
+ r = hex2int(name);
+ g = hex2int(name + 3);
+ b = hex2int(name + 6);
+ } else if (len == 8) {
+ a = hex2int(name);
+ r = hex2int(name + 2);
+ g = hex2int(name + 4);
+ b = hex2int(name + 6);
+ } else if (len == 6) {
+ r = hex2int(name);
+ g = hex2int(name + 2);
+ b = hex2int(name + 4);
+ } else if (len == 3) {
+ r = hex2int(name[0]);
+ g = hex2int(name[1]);
+ b = hex2int(name[2]);
+ } else {
+ r = g = b = -1;
+ }
+ if ((uint)r > 255 || (uint)g > 255 || (uint)b > 255 || (uint)a > 255) {
+ *rgb = 0;
+ return false;
+ }
+ *rgb = qRgba(r, g ,b, a);
+ return true;
+}
+
+bool qt_get_hex_rgb(const QChar *str, int len, QRgb *rgb)
+{
+ if (len > 13)
+ return false;
+ char tmp[16];
+ for (int i = 0; i < len; ++i)
+ tmp[i] = str[i].toLatin1();
+ tmp[len] = 0;
+ return qt_get_hex_rgb(tmp, rgb);
+}
+
+#ifndef QT_NO_COLORNAMES
+
+/*
+ CSS color names = SVG 1.0 color names + transparent (rgba(0,0,0,0))
+*/
+
+#ifdef rgb
+# undef rgb
+#endif
+#define rgb(r,g,b) (0xff000000 | (r << 16) | (g << 8) | b)
+
+static const struct RGBData {
+ const char name[21];
+ uint value;
+} rgbTbl[] = {
+ { "aliceblue", rgb(240, 248, 255) },
+ { "antiquewhite", rgb(250, 235, 215) },
+ { "aqua", rgb( 0, 255, 255) },
+ { "aquamarine", rgb(127, 255, 212) },
+ { "azure", rgb(240, 255, 255) },
+ { "beige", rgb(245, 245, 220) },
+ { "bisque", rgb(255, 228, 196) },
+ { "black", rgb( 0, 0, 0) },
+ { "blanchedalmond", rgb(255, 235, 205) },
+ { "blue", rgb( 0, 0, 255) },
+ { "blueviolet", rgb(138, 43, 226) },
+ { "brown", rgb(165, 42, 42) },
+ { "burlywood", rgb(222, 184, 135) },
+ { "cadetblue", rgb( 95, 158, 160) },
+ { "chartreuse", rgb(127, 255, 0) },
+ { "chocolate", rgb(210, 105, 30) },
+ { "coral", rgb(255, 127, 80) },
+ { "cornflowerblue", rgb(100, 149, 237) },
+ { "cornsilk", rgb(255, 248, 220) },
+ { "crimson", rgb(220, 20, 60) },
+ { "cyan", rgb( 0, 255, 255) },
+ { "darkblue", rgb( 0, 0, 139) },
+ { "darkcyan", rgb( 0, 139, 139) },
+ { "darkgoldenrod", rgb(184, 134, 11) },
+ { "darkgray", rgb(169, 169, 169) },
+ { "darkgreen", rgb( 0, 100, 0) },
+ { "darkgrey", rgb(169, 169, 169) },
+ { "darkkhaki", rgb(189, 183, 107) },
+ { "darkmagenta", rgb(139, 0, 139) },
+ { "darkolivegreen", rgb( 85, 107, 47) },
+ { "darkorange", rgb(255, 140, 0) },
+ { "darkorchid", rgb(153, 50, 204) },
+ { "darkred", rgb(139, 0, 0) },
+ { "darksalmon", rgb(233, 150, 122) },
+ { "darkseagreen", rgb(143, 188, 143) },
+ { "darkslateblue", rgb( 72, 61, 139) },
+ { "darkslategray", rgb( 47, 79, 79) },
+ { "darkslategrey", rgb( 47, 79, 79) },
+ { "darkturquoise", rgb( 0, 206, 209) },
+ { "darkviolet", rgb(148, 0, 211) },
+ { "deeppink", rgb(255, 20, 147) },
+ { "deepskyblue", rgb( 0, 191, 255) },
+ { "dimgray", rgb(105, 105, 105) },
+ { "dimgrey", rgb(105, 105, 105) },
+ { "dodgerblue", rgb( 30, 144, 255) },
+ { "firebrick", rgb(178, 34, 34) },
+ { "floralwhite", rgb(255, 250, 240) },
+ { "forestgreen", rgb( 34, 139, 34) },
+ { "fuchsia", rgb(255, 0, 255) },
+ { "gainsboro", rgb(220, 220, 220) },
+ { "ghostwhite", rgb(248, 248, 255) },
+ { "gold", rgb(255, 215, 0) },
+ { "goldenrod", rgb(218, 165, 32) },
+ { "gray", rgb(128, 128, 128) },
+ { "green", rgb( 0, 128, 0) },
+ { "greenyellow", rgb(173, 255, 47) },
+ { "grey", rgb(128, 128, 128) },
+ { "honeydew", rgb(240, 255, 240) },
+ { "hotpink", rgb(255, 105, 180) },
+ { "indianred", rgb(205, 92, 92) },
+ { "indigo", rgb( 75, 0, 130) },
+ { "ivory", rgb(255, 255, 240) },
+ { "khaki", rgb(240, 230, 140) },
+ { "lavender", rgb(230, 230, 250) },
+ { "lavenderblush", rgb(255, 240, 245) },
+ { "lawngreen", rgb(124, 252, 0) },
+ { "lemonchiffon", rgb(255, 250, 205) },
+ { "lightblue", rgb(173, 216, 230) },
+ { "lightcoral", rgb(240, 128, 128) },
+ { "lightcyan", rgb(224, 255, 255) },
+ { "lightgoldenrodyellow", rgb(250, 250, 210) },
+ { "lightgray", rgb(211, 211, 211) },
+ { "lightgreen", rgb(144, 238, 144) },
+ { "lightgrey", rgb(211, 211, 211) },
+ { "lightpink", rgb(255, 182, 193) },
+ { "lightsalmon", rgb(255, 160, 122) },
+ { "lightseagreen", rgb( 32, 178, 170) },
+ { "lightskyblue", rgb(135, 206, 250) },
+ { "lightslategray", rgb(119, 136, 153) },
+ { "lightslategrey", rgb(119, 136, 153) },
+ { "lightsteelblue", rgb(176, 196, 222) },
+ { "lightyellow", rgb(255, 255, 224) },
+ { "lime", rgb( 0, 255, 0) },
+ { "limegreen", rgb( 50, 205, 50) },
+ { "linen", rgb(250, 240, 230) },
+ { "magenta", rgb(255, 0, 255) },
+ { "maroon", rgb(128, 0, 0) },
+ { "mediumaquamarine", rgb(102, 205, 170) },
+ { "mediumblue", rgb( 0, 0, 205) },
+ { "mediumorchid", rgb(186, 85, 211) },
+ { "mediumpurple", rgb(147, 112, 219) },
+ { "mediumseagreen", rgb( 60, 179, 113) },
+ { "mediumslateblue", rgb(123, 104, 238) },
+ { "mediumspringgreen", rgb( 0, 250, 154) },
+ { "mediumturquoise", rgb( 72, 209, 204) },
+ { "mediumvioletred", rgb(199, 21, 133) },
+ { "midnightblue", rgb( 25, 25, 112) },
+ { "mintcream", rgb(245, 255, 250) },
+ { "mistyrose", rgb(255, 228, 225) },
+ { "moccasin", rgb(255, 228, 181) },
+ { "navajowhite", rgb(255, 222, 173) },
+ { "navy", rgb( 0, 0, 128) },
+ { "oldlace", rgb(253, 245, 230) },
+ { "olive", rgb(128, 128, 0) },
+ { "olivedrab", rgb(107, 142, 35) },
+ { "orange", rgb(255, 165, 0) },
+ { "orangered", rgb(255, 69, 0) },
+ { "orchid", rgb(218, 112, 214) },
+ { "palegoldenrod", rgb(238, 232, 170) },
+ { "palegreen", rgb(152, 251, 152) },
+ { "paleturquoise", rgb(175, 238, 238) },
+ { "palevioletred", rgb(219, 112, 147) },
+ { "papayawhip", rgb(255, 239, 213) },
+ { "peachpuff", rgb(255, 218, 185) },
+ { "peru", rgb(205, 133, 63) },
+ { "pink", rgb(255, 192, 203) },
+ { "plum", rgb(221, 160, 221) },
+ { "powderblue", rgb(176, 224, 230) },
+ { "purple", rgb(128, 0, 128) },
+ { "red", rgb(255, 0, 0) },
+ { "rosybrown", rgb(188, 143, 143) },
+ { "royalblue", rgb( 65, 105, 225) },
+ { "saddlebrown", rgb(139, 69, 19) },
+ { "salmon", rgb(250, 128, 114) },
+ { "sandybrown", rgb(244, 164, 96) },
+ { "seagreen", rgb( 46, 139, 87) },
+ { "seashell", rgb(255, 245, 238) },
+ { "sienna", rgb(160, 82, 45) },
+ { "silver", rgb(192, 192, 192) },
+ { "skyblue", rgb(135, 206, 235) },
+ { "slateblue", rgb(106, 90, 205) },
+ { "slategray", rgb(112, 128, 144) },
+ { "slategrey", rgb(112, 128, 144) },
+ { "snow", rgb(255, 250, 250) },
+ { "springgreen", rgb( 0, 255, 127) },
+ { "steelblue", rgb( 70, 130, 180) },
+ { "tan", rgb(210, 180, 140) },
+ { "teal", rgb( 0, 128, 128) },
+ { "thistle", rgb(216, 191, 216) },
+ { "tomato", rgb(255, 99, 71) },
+ { "transparent", 0 },
+ { "turquoise", rgb( 64, 224, 208) },
+ { "violet", rgb(238, 130, 238) },
+ { "wheat", rgb(245, 222, 179) },
+ { "white", rgb(255, 255, 255) },
+ { "whitesmoke", rgb(245, 245, 245) },
+ { "yellow", rgb(255, 255, 0) },
+ { "yellowgreen", rgb(154, 205, 50) }
+};
+
+static const int rgbTblSize = sizeof(rgbTbl) / sizeof(RGBData);
+
+#undef rgb
+
+#if defined(Q_CC_MSVC) && _MSC_VER < 1600
+inline bool operator<(const RGBData &data1, const RGBData &data2)
+{ return qstrcmp(data1.name, data2.name) < 0; }
+#endif
+
+inline bool operator<(const char *name, const RGBData &data)
+{ return qstrcmp(name, data.name) < 0; }
+inline bool operator<(const RGBData &data, const char *name)
+{ return qstrcmp(data.name, name) < 0; }
+
+static bool get_named_rgb(const char *name_no_space, QRgb *rgb)
+{
+ const RGBData *r = std::lower_bound(rgbTbl, rgbTbl + rgbTblSize, name_no_space);
+ if ((r != rgbTbl + rgbTblSize) && !(name_no_space < *r)) {
+ *rgb = r->value;
+ return true;
+ }
+ return false;
+}
+
+bool qt_get_named_rgb(const char *name, QRgb* rgb)
+{
+ int len = int(strlen(name));
+ if (len > 255)
+ return false;
+ char name_no_space[256];
+ int pos = 0;
+ for (int i = 0; i < len; i++) {
+ if (name[i] != '\t' && name[i] != ' ')
+ name_no_space[pos++] = QChar::toLower(name[i]);
+ }
+ name_no_space[pos] = 0;
+
+ return get_named_rgb(name_no_space, rgb);
+}
+
+bool qt_get_named_rgb(const QChar *name, int len, QRgb *rgb)
+{
+ if (len > 255)
+ return false;
+ char name_no_space[256];
+ int pos = 0;
+ for (int i = 0; i < len; i++) {
+ if (name[i] != QLatin1Char('\t') && name[i] != QLatin1Char(' '))
+ name_no_space[pos++] = name[i].toLower().toLatin1();
+ }
+ name_no_space[pos] = 0;
+ return get_named_rgb(name_no_space, rgb);
+}
+
+QStringList qt_get_colornames()
+{
+ int i = 0;
+ QStringList lst;
+ lst.reserve(rgbTblSize);
+ for (i = 0; i < rgbTblSize; i++)
+ lst << QLatin1String(rgbTbl[i].name);
+ return lst;
+}
+
+#else
+
+bool qt_get_named_rgb(const char *, QRgb*)
+{
+ return false;
+}
+
+QStringList qt_get_colornames()
+{
+ return QStringList();
+}
+#endif // QT_NO_COLORNAMES
+
+/*!
\class QColor
\brief The QColor class provides colors based on RGB, HSV or CMYK values.