瀏覽 EGE 源碼隨記
[編輯] [转简体] （简体译文）
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作者：huidong
| 分類：【編程】EasyX
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概要
記錄一下 EGE 中一些也許有用的實現細節
正文
鏈接 GDI+ 需要考慮 x64 的情況（ege.h）
#if !defined(EGE_GRAPH_LIB_BUILD) && !defined(EGE_GRAPH_NO_LIB) # ifdef _MSC_VER # pragma comment(lib,"gdiplus.lib") # ifdef _WIN64 // 64 bit libs # pragma comment(lib,"graphics64.lib") # else // 32 bit libs # pragma comment(lib,"graphics.lib") # endif # endif #endif
RGB 宏設置了 alpha 值爲 255
#define EGERGBA(r, g, b, a) ((::ege::color_t)( ((r)<<16) | ((g)<<8) | (b) | ((a)<<24) )) #define EGERGB(r, g, b) EGERGBA(r, g, b, 0xFF) #define EGEARGB(a, r, g, b) EGERGBA(r, g, b, a) #define EGEACOLOR(a, color) ((::ege::color_t)( ((color) & 0xFFFFFF) | ((a)<<24) )) #define EGECOLORA(color, a) EGEACOLOR(a, color) #define EGEGET_R(c) ( ((c)>>16) & 0xFF ) #define EGEGET_G(c) ( ((c)>> 8) & 0xFF ) #define EGEGET_B(c) ( ((c)) & 0xFF ) #define EGEGET_A(c) ( ((c)>>24) & 0xFF ) #define EGEGRAY(gray) EGERGB(gray, gray, gray) #define EGEGRAYA(gray, a) EGERGBA(gray, gray, gray, a) #define EGEAGRAY(a, gray) EGEGRAYA(gray, a)
給出 PI
const double PI = 3.1415926535897932384626;
給出更多預設顏色
// 颜色
enum COLORS {
ALICEBLUE = EGERGB(0xF0, 0xF8, 0xFF),
ANTIQUEWHITE = EGERGB(0xFA, 0xEB, 0xD7),
AQUA = EGERGB(0x00, 0xFF, 0xFF),
AQUAMARINE = EGERGB(0x7F, 0xFF, 0xD4),
AZURE = EGERGB(0xF0, 0xFF, 0xFF),
BEIGE = EGERGB(0xF5, 0xF5, 0xDC),
BISQUE = EGERGB(0xFF, 0xE4, 0xC4),
BLACK = EGERGB(0x00, 0x00, 0x00),
BLANCHEDALMOND = EGERGB(0xFF, 0xEB, 0xCD),
BLUE = EGERGB(0x00, 0x00, 0xFF),
BLUEVIOLET = EGERGB(0x8A, 0x2B, 0xE2),
BROWN = EGERGB(0xA5, 0x2A, 0x2A),
BURLYWOOD = EGERGB(0xDE, 0xB8, 0x87),
CADETBLUE = EGERGB(0x5F, 0x9E, 0xA0),
CHARTREUSE = EGERGB(0x7F, 0xFF, 0x00),
CHOCOLATE = EGERGB(0xD2, 0x69, 0x1E),
CORAL = EGERGB(0xFF, 0x7F, 0x50),
CORNFLOWERBLUE = EGERGB(0x64, 0x95, 0xED),
CORNSILK = EGERGB(0xFF, 0xF8, 0xDC),
CRIMSON = EGERGB(0xDC, 0x14, 0x3C),
CYAN = EGERGB(0x00, 0xFF, 0xFF),
DARKBLUE = EGERGB(0x00, 0x00, 0x8B),
DARKCYAN = EGERGB(0x00, 0x8B, 0x8B),
DARKGOLDENROD = EGERGB(0xB8, 0x86, 0x0B),
DARKGRAY = EGERGB(0xA9, 0xA9, 0xA9),
DARKGREEN = EGERGB(0x00, 0x64, 0x00),
DARKKHAKI = EGERGB(0xBD, 0xB7, 0x6B),
DARKMAGENTA = EGERGB(0x8B, 0x00, 0x8B),
DARKOLIVEGREEN = EGERGB(0x55, 0x6B, 0x2F),
DARKORANGE = EGERGB(0xFF, 0x8C, 0x00),
DARKORCHID = EGERGB(0x99, 0x32, 0xCC),
DARKRED = EGERGB(0x8B, 0x00, 0x00),
DARKSALMON = EGERGB(0xE9, 0x96, 0x7A),
DARKSEAGREEN = EGERGB(0x8F, 0xBC, 0x8F),
DARKSLATEBLUE = EGERGB(0x48, 0x3D, 0x8B),
DARKSLATEGRAY = EGERGB(0x2F, 0x4F, 0x4F),
DARKTURQUOISE = EGERGB(0x00, 0xCE, 0xD1),
DARKVIOLET = EGERGB(0x94, 0x00, 0xD3),
DEEPPINK = EGERGB(0xFF, 0x14, 0x93),
DEEPSKYBLUE = EGERGB(0x00, 0xBF, 0xFF),
DIMGRAY = EGERGB(0x69, 0x69, 0x69),
DODGERBLUE = EGERGB(0x1E, 0x90, 0xFF),
FIREBRICK = EGERGB(0xB2, 0x22, 0x22),
FLORALWHITE = EGERGB(0xFF, 0xFA, 0xF0),
FORESTGREEN = EGERGB(0x22, 0x8B, 0x22),
FUCHSIA = EGERGB(0xFF, 0x00, 0xFF),
GAINSBORO = EGERGB(0xDC, 0xDC, 0xDC),
GHOSTWHITE = EGERGB(0xF8, 0xF8, 0xFF),
GOLD = EGERGB(0xFF, 0xD7, 0x00),
GOLDENROD = EGERGB(0xDA, 0xA5, 0x20),
GRAY = EGERGB(0x80, 0x80, 0x80),
GREEN = EGERGB(0x00, 0x80, 0x00),
GREENYELLOW = EGERGB(0xAD, 0xFF, 0x2F),
HONEYDEW = EGERGB(0xF0, 0xFF, 0xF0),
HOTPINK = EGERGB(0xFF, 0x69, 0xB4),
INDIANRED = EGERGB(0xCD, 0x5C, 0x5C),
INDIGO = EGERGB(0x4B, 0x00, 0x82),
IVORY = EGERGB(0xFF, 0xFF, 0xF0),
KHAKI = EGERGB(0xF0, 0xE6, 0x8C),
LAVENDER = EGERGB(0xE6, 0xE6, 0xFA),
LAVENDERBLUSH = EGERGB(0xFF, 0xF0, 0xF5),
LAWNGREEN = EGERGB(0x7C, 0xFC, 0x00),
LEMONCHIFFON = EGERGB(0xFF, 0xFA, 0xCD),
LIGHTBLUE = EGERGB(0xAD, 0xD8, 0xE6),
LIGHTCORAL = EGERGB(0xF0, 0x80, 0x80),
LIGHTCYAN = EGERGB(0xE0, 0xFF, 0xFF),
LIGHTGOLDENRODYELLOW = EGERGB(0xFA, 0xFA, 0xD2),
LIGHTGRAY = EGERGB(0xD3, 0xD3, 0xD3),
LIGHTGREEN = EGERGB(0x90, 0xEE, 0x90),
LIGHTPINK = EGERGB(0xFF, 0xB6, 0xC1),
LIGHTSALMON = EGERGB(0xFF, 0xA0, 0x7A),
LIGHTSEAGREEN = EGERGB(0x20, 0xB2, 0xAA),
LIGHTSKYBLUE = EGERGB(0x87, 0xCE, 0xFA),
LIGHTSLATEGRAY = EGERGB(0x77, 0x88, 0x99),
LIGHTSTEELBLUE = EGERGB(0xB0, 0xC4, 0xDE),
LIGHTYELLOW = EGERGB(0xFF, 0xFF, 0xE0),
LIGHTRED = EGERGB(0xFC, 0x54, 0x54),
LIGHTMAGENTA = EGERGB(0xFC, 0x54, 0xFC),
LIME = EGERGB(0x00, 0xFF, 0x00),
LIMEGREEN = EGERGB(0x32, 0xCD, 0x32),
LINEN = EGERGB(0xFA, 0xF0, 0xE6),
MAGENTA = EGERGB(0xFF, 0x00, 0xFF),
MAROON = EGERGB(0x80, 0x00, 0x00),
MEDIUMAQUAMARINE = EGERGB(0x66, 0xCD, 0xAA),
MEDIUMBLUE = EGERGB(0x00, 0x00, 0xCD),
MEDIUMORCHID = EGERGB(0xBA, 0x55, 0xD3),
MEDIUMPURPLE = EGERGB(0x93, 0x70, 0xDB),
MEDIUMSEAGREEN = EGERGB(0x3C, 0xB3, 0x71),
MEDIUMSLATEBLUE = EGERGB(0x7B, 0x68, 0xEE),
MEDIUMSPRINGGREEN = EGERGB(0x00, 0xFA, 0x9A),
MEDIUMTURQUOISE = EGERGB(0x48, 0xD1, 0xCC),
MEDIUMVIOLETRED = EGERGB(0xC7, 0x15, 0x85),
MIDNIGHTBLUE = EGERGB(0x19, 0x19, 0x70),
MINTCREAM = EGERGB(0xF5, 0xFF, 0xFA),
MISTYROSE = EGERGB(0xFF, 0xE4, 0xE1),
MOCCASIN = EGERGB(0xFF, 0xE4, 0xB5),
NAVAJOWHITE = EGERGB(0xFF, 0xDE, 0xAD),
NAVY = EGERGB(0x00, 0x00, 0x80),
OLDLACE = EGERGB(0xFD, 0xF5, 0xE6),
OLIVE = EGERGB(0x80, 0x80, 0x00),
OLIVEDRAB = EGERGB(0x6B, 0x8E, 0x23),
ORANGE = EGERGB(0xFF, 0xA5, 0x00),
ORANGERED = EGERGB(0xFF, 0x45, 0x00),
ORCHID = EGERGB(0xDA, 0x70, 0xD6),
PALEGOLDENROD = EGERGB(0xEE, 0xE8, 0xAA),
PALEGREEN = EGERGB(0x98, 0xFB, 0x98),
PALETURQUOISE = EGERGB(0xAF, 0xEE, 0xEE),
PALEVIOLETRED = EGERGB(0xDB, 0x70, 0x93),
PAPAYAWHIP = EGERGB(0xFF, 0xEF, 0xD5),
PEACHPUFF = EGERGB(0xFF, 0xDA, 0xB9),
PERU = EGERGB(0xCD, 0x85, 0x3F),
PINK = EGERGB(0xFF, 0xC0, 0xCB),
PLUM = EGERGB(0xDD, 0xA0, 0xDD),
POWDERBLUE = EGERGB(0xB0, 0xE0, 0xE6),
PURPLE = EGERGB(0x80, 0x00, 0x80),
RED = EGERGB(0xFF, 0x00, 0x00),
ROSYBROWN = EGERGB(0xBC, 0x8F, 0x8F),
ROYALBLUE = EGERGB(0x41, 0x69, 0xE1),
SADDLEBROWN = EGERGB(0x8B, 0x45, 0x13),
SALMON = EGERGB(0xFA, 0x80, 0x72),
SANDYBROWN = EGERGB(0xF4, 0xA4, 0x60),
SEAGREEN = EGERGB(0x2E, 0x8B, 0x57),
SEASHELL = EGERGB(0xFF, 0xF5, 0xEE),
SIENNA = EGERGB(0xA0, 0x52, 0x2D),
SILVER = EGERGB(0xC0, 0xC0, 0xC0),
SKYBLUE = EGERGB(0x87, 0xCE, 0xEB),
SLATEBLUE = EGERGB(0x6A, 0x5A, 0xCD),
SLATEGRAY = EGERGB(0x70, 0x80, 0x90),
SNOW = EGERGB(0xFF, 0xFA, 0xFA),
SPRINGGREEN = EGERGB(0x00, 0xFF, 0x7F),
STEELBLUE = EGERGB(0x46, 0x82, 0xB4),
TAN = EGERGB(0xD2, 0xB4, 0x8C),
TEAL = EGERGB(0x00, 0x80, 0x80),
THISTLE = EGERGB(0xD8, 0xBF, 0xD8),
TOMATO = EGERGB(0xFF, 0x63, 0x47),
TURQUOISE = EGERGB(0x40, 0xE0, 0xD0),
VIOLET = EGERGB(0xEE, 0x82, 0xEE),
WHEAT = EGERGB(0xF5, 0xDE, 0xB3),
WHITE = EGERGB(0xFF, 0xFF, 0xFF),
WHITESMOKE = EGERGB(0xF5, 0xF5, 0xF5),
YELLOW = EGERGB(0xFF, 0xFF, 0x00),
YELLOWGREEN = EGERGB(0x9A, 0xCD, 0x32),
};提供一些填充模式，不知道這些是不是都是 GDI/GDI+ 本身就支持的？沒有確認在 EasyX 中支持哪些。
// 填充模式
enum fill_patterns {/* Fill patterns for get/setfillstyle */
EMPTY_FILL, /* fills area in background color */
SOLID_FILL, /* fills area in solid fill color */
LINE_FILL, /* --- fill */
LTSLASH_FILL, /* /// fill */
SLASH_FILL, /* /// fill with thick lines */
BKSLASH_FILL, /*fill with thick lines */
LTBKSLASH_FILL, /*fill */
HATCH_FILL, /* light hatch fill */
XHATCH_FILL, /* heavy cross hatch fill */
INTERLEAVE_FILL,/* interleaving line fill */
WIDE_DOT_FILL, /* Widely spaced dot fill */
CLOSE_DOT_FILL, /* Closely spaced dot fill */
USER_FILL /* user defined fill */
};可供參考的一些選項
enum text_just { /* Horizontal and vertical justification
for settextjustify */
LEFT_TEXT = 0,
CENTER_TEXT = 1,
RIGHT_TEXT = 2,
BOTTOM_TEXT = 0,
/* CENTER_TEXT = 1, already defined above */
TOP_TEXT = 2
};
enum line_styles { /* Line styles for get/setlinestyle */
SOLID_LINE = PS_SOLID,
CENTER_LINE = PS_DASH,
DOTTED_LINE = PS_DOT,
DASHED_LINE = PS_DASHDOT,
NULL_LINE = PS_NULL,
USERBIT_LINE = PS_USERSTYLE, /* User defined line style */
};