{"id":1252,"date":"2023-03-18T19:18:19","date_gmt":"2023-03-18T11:18:19","guid":{"rendered":"https:\/\/www.huangrongzhen.ink\/?p=1252"},"modified":"2023-03-21T17:21:04","modified_gmt":"2023-03-21T09:21:04","slug":"%e5%8d%95%e7%89%87%e6%9c%ba-gui-%e8%ae%be%e8%ae%a1%ef%bc%88%e5%8d%81%e5%85%ab%ef%bc%89-%e7%8e%af%e5%bd%a2%e8%bf%9b%e5%ba%a6%e6%9d%a1","status":"publish","type":"post","link":"https:\/\/www.huangrongzhen.ink\/?p=1252","title":{"rendered":"\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u5341\u516b\uff09- \u73af\u5f62\u8fdb\u5ea6\u6761"},"content":{"rendered":"

\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f <\/p><\/div>\n\n\n

<\/span>\u7b80\u4ecb<\/span><\/h2>\n\n\n\n

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\n
\"\"<\/figure><\/div>\n\n\n

<\/span>\u65b9\u6cd5\u4e00\uff1a\u5237\u56fe<\/span><\/h2>\n\n\n\n

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<\/span>\u65b9\u6cd5\u4e8c\uff1a\u753b\u5706\u73af<\/span><\/h2>\n\n\n\n

\u65b9\u6cd5\u4e8c\u7684\u601d\u8def\u4e5f\u662f\u6bd4\u8f83\u7b80\u5355\u7684\u3002\u9996\u5148\uff0c\u5148\u9501\u5b9a\u663e\u793a\u533a\u57df\u7684\u4f4d\u7f6e\u548c\u5927\u5c0f\uff0c\u5c06\u5b83\u7684\u80cc\u666f\u4fdd\u5b58\u4e0b\u6765\uff0c\u65b9\u4fbf\u540e\u7eed\u56de\u586b\u3002\u5176\u6b21\uff0c\u4ece\u5934\u5230\u5c3e\u626b\u63cf\u6574\u4e2a\u663e\u793a\u533a\u57df\uff0c\u5224\u65ad\u54ea\u4e9b\u70b9\u843d\u5728\u5706\u73af\u533a\u57df\uff0c\u5e76\u5237\u65b0\u663e\u793a\u3002\u56e0\u4e3a\u5706\u73af\u7684\u8fb9\u7f18\u662f\u5706\u5f27\u5f62\u7684\uff0c\u6240\u4ee5\u4e0d\u80fd\u7528\u4e0a\u4e00\u7ae0\u4ecb\u7ecd\u7684\u591a\u8fb9\u5f62\u586b\u5145\u65b9\u5f0f\u586b\u5145\uff0c\u53ea\u80fd\u662f\u901a\u8fc7\u5f53\u524d\u5750\u6807\u70b9\u4e0e\u8fdb\u5ea6\u6761\u5706\u5fc3\u7684\u8ddd\u79bb\u4ee5\u53ca\u5939\u89d2\u786e\u5b9a\u662f\u5426\u8981\u663e\u793a\u8be5\u70b9\u3002\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n

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#include \".\/LCD\/LCD.h\"\n\n\/\/\u63a7\u5236\u7ed3\u6784\u4f53\ntypedef struct\n{\n  unsigned int    x, y, rin, rout; \/\/\u5706\u5fc3\u5750\u6807\uff0c\u5185\u73af\u534a\u5f84\u548c\u5916\u73af\u534a\u5f84\n  unsigned int    lastPercent;     \/\/\u4e0a\u4e00\u4e2a\u8fdb\u5ea6\n#if (0 != LCD_USE_RGB565)\n  unsigned short  color;           \/\/\u989c\u8272\n  unsigned short* background;      \/\/\u80cc\u666f\u7f13\u51b2\u533a\uff0c\u521d\u59cb\u5316\u65f6\u7531\u52a8\u6001\u5185\u5b58\u81ea\u52a8\u5206\u914d\n#else\n  unsigned int    color;           \/\/\u989c\u8272\n  unsigned int*   background;      \/\/\u80cc\u666f\u7f13\u51b2\u533a\uff0c\u521d\u59cb\u5316\u65f6\u7531\u52a8\u6001\u5185\u5b58\u81ea\u52a8\u5206\u914d\n#endif\n\n}StructCirProgressBar;\n\n\/\/API \u51fd\u6570\nvoid CreateCirProgressBar(StructCirProgressBar* widget);                    \/\/\u521b\u5efa\u73af\u5f62\u8fdb\u5ea6\u6761\nvoid SetCirProgressBar(StructCirProgressBar* widget, unsigned int percent); \/\/\u66f4\u65b0\u73af\u5f62\u8fdb\u5ea6\u6761\u663e\u793a<\/code><\/pre>\n\n\n\n
\u521b\u5efa\u51fd\u6570\u6bd4\u8f83\u7b80\u5355\uff0c\u4e3b\u8981\u5de5\u4f5c\u5c31\u662f\u4e3a\u73af\u5f62\u8fdb\u5ea6\u6761\u7684\u80cc\u666f\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\uff0c\u5177\u4f53\u5982\u4e0b\u6240\u793a\u3002\u5728\u8fd9\u91cc\u8981\u6ce8\u610f\uff0c\u56e0\u4e3a\u662f PC \u4eff\u771f\uff0c\u6240\u4ee5\u76f4\u63a5\u7528\u4e86 C \u8bed\u8a00\u5e93\u51fd\u6570\u91cc\u8fb9\u7684\u52a8\u6001\u5185\u5b58\u5206\u914d\u51fd\u6570\uff0c\u5373 malloc \u51fd\u6570\u3002\u5982\u679c\u5728\u5355\u7247\u673a\u4e2d\uff0c\u6709\u5b9e\u73b0\u4e86\u81ea\u5df1\u7684\u52a8\u6001\u5185\u5b58\u7ba1\u7406\uff0c\u4e00\u822c\u6709\u5916\u62d3 RAM \u7684\u9879\u76ee\u90fd\u4f1a\u8fd9\u4e48\u5e72\uff0c\u90a3\u4e48\u5c31\u9700\u8981\u66ff\u6362\u6210\u81ea\u5df1\u7684\u52a8\u6001\u5185\u5b58\u5206\u914d\u51fd\u6570\u3002<\/strong>\u5206\u914d\u597d\u52a8\u6001\u5185\u5b58\u540e\uff0c\u9700\u8981\u9884\u5148\u628a\u80cc\u666f\u8bfb\u5165\u7f13\u51b2\u533a\uff0c\u65b9\u4fbf\u540e\u7eed\u56de\u586b\u3002<\/p>\n\n\n\n
#include \"CirProgressBar.h\"\n#include \"stdio.h\"\n#include \"stdlib.h\"\n#include \"math.h\"\n\nvoid CreateCirProgressBar(StructCirProgressBar* widget)\n{\n  unsigned int x, y, x0, y0, x1, y1, width, height, i;\n\n  \/\/\u8ba1\u7b97\u663e\u793a\u533a\u57df\u5927\u5c0f\n  x0 = widget->x - widget->rout;\n  x1 = widget->x + widget->rout;\n  y0 = widget->y - widget->rout;\n  y1 = widget->y + widget->rout;\n  width = x1 - x0 + 1;\n  height = y1 - y0 + 1;\n\n  \/\/\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n#if (0 != LCD_USE_RGB565)\n  widget->background = (unsigned short*)malloc(width * height * 2);\n#else\n  widget->background = (unsigned int*)malloc(width * height * 4);\n#endif\n  if (NULL == widget->background)\n  {\n    printf(\"CreateCirProgressBar: Fail to malloc for background\\r\\n\");\n    while (1) {}\n  }\n\n  \/\/\u4fdd\u5b58\u80cc\u666f\n  i = 0;\n  for (y = y0; y <= y1; y++)\n  {\n    for (x = x0; x <= x1; x++)\n    {\n      widget->background[i++] = LCDReadPoint(x, y);\n    }\n  }\n\n  \/\/\u8bbe\u7f6e\u65cb\u8f6c\u89d2\u5ea6\u4e3a 0\n  widget->lastPercent = 100;\n  SetCirProgressBar(widget, 0);\n}<\/code><\/pre>\n\n\n\n
\u66f4\u65b0\u663e\u793a\u8fdb\u5ea6\u51fd\u6570\u5177\u4f53\u5b9e\u73b0\u5982\u4e0b\u6240\u793a\u3002\u8981\u6ce8\u610f\uff0c\u8fd9\u91cc\u9ed8\u8ba4\u89c4\u5b9a\u7ad6\u76f4\u5411\u4e0a\u89d2\u5ea6\u4e3a\u96f6\u5ea6\uff0c\u6240\u6709\u7684\u89d2\u5ea6\u503c\u5747\u4f7f\u7528\u5f27\u5ea6\u5236\u3002<\/strong>\u4e0e\u591a\u8fb9\u5f62\u586b\u5145\u7c7b\u4f3c\uff0c\u6b64\u5904\u4e5f\u662f\u626b\u63cf\u73af\u5f62\u8fdb\u5ea6\u6761\u6240\u6709\u7684\u70b9\uff0c\u4f9d\u6b21\u5224\u65ad\u662f\u5426\u9700\u8981\u663e\u793a\u3002\u5224\u65ad\u7684\u4f9d\u636e\u6709\u4e24\u70b9\uff0c\u4e00\u662f\u8be5\u70b9\u4e0e\u73af\u5f62\u8fdb\u5ea6\u6761\u5706\u5fc3\u7684\u8ddd\u79bb\u8981\u5728\u5185\u73af\u534a\u5f84\u548c\u5916\u73af\u534a\u5f84\u4e4b\u95f4\uff0c\u800c\u662f\u8be5\u70b9\u4e0e\u5706\u5fc3\u5f62\u6210\u7684\u76f4\u7ebf\u4e0e\u5782\u76f4\u65b9\u5411\u7684\u5939\u89d2\u8981\u5728\u767e\u5206\u6bd4\u7684\u8303\u56f4\u5185\u3002\u8ba1\u7b97\u5939\u89d2\u65f6\uff0c\u9ed8\u8ba4\u6309\u7167\u7b2c\u4e00\u9879\u8c61\u9650\uff0c\u5373\u53f3\u4e0a\u89d2\u8ba1\u7b97\uff0c\u7136\u540e\u518d\u6839\u636e\u8be5\u70b9\u843d\u5728\u4e86\u54ea\u4e2a\u8c61\u9650\u8fdb\u884c\u89d2\u5ea6\u8865\u507f\u3002<\/p>\n\n\n\n
\u8ddd\u79bb\u548c\u89d2\u5ea6\u5747\u6ee1\u8db3\u8981\u6c42\u540e\uff0c\u8be5\u70b9\u624d\u80fd\u5728\u5c4f\u5e55\u4e0a\u663e\u793a\u3002<\/p>\n\n\n\n
\/\/\u66f4\u65b0\u8fdb\u5ea6\u6761\u663e\u793a\n\/\/widget\uff1a\u63a7\u4ef6\u63a7\u5236\u7ed3\u6784\u4f53\u9996\u5730\u5740\n\/\/percent\uff1a\u767e\u5206\u6bd4\uff0c0-100\nvoid SetCirProgressBar(StructCirProgressBar* widget, unsigned int percent)\n{\n  const double pi = 3.1415926535;\n  unsigned int i;\n  double x, y, x0, y0, x1, y1, dx, dy, distance;\n  double angle, angle1;\n\n  \/\/\u9650\u5b9a\u8f93\u5165\u8303\u56f4\n  if (percent > 100)\n  {\n    percent = 100;\n  }\n\n  \/\/\u89d2\u5ea6\u4e0e\u8bb0\u5f55\u503c\u76f8\u540c\uff0c\u76f4\u63a5\u8fd4\u56de\n  if (percent == widget->lastPercent)\n  {\n    return;\n  }\n\n  \/\/\u9501\u5b9a\u5c4f\u5e55\n  LCDLock();\n\n  \/\/\u7edf\u8ba1\u663e\u793a\u533a\u57df\u5927\u5c0f\n  x0 = widget->x - widget->rout;\n  x1 = widget->x + widget->rout;\n  y0 = widget->y - widget->rout;\n  y1 = widget->y + widget->rout;\n\n  \/\/\u89d2\u5ea6\u6bd4\u8bb0\u5f55\u503c\u8981\u5c0f\uff0c\u9700\u8981\u91cd\u7ed8\u80cc\u666f\n  if (percent < widget->lastPercent)\n  {\n    \/\/\u80cc\u666f\u91cd\u7ed8\n    i = 0;\n    for (y = y0; y <= y1; y = y + 1)\n    {\n      for (x = x0; x <= x1; x = x + 1)\n      {\n        LCDFastDrawPoint(x, y, widget->background[i++]);\n      }\n    }\n  }\n\n  \/\/\u4fdd\u5b58\u5f53\u524d\u8fdb\u5ea6\n  widget->lastPercent = percent;\n\n  \/\/\u8ba1\u7b97\u89d2\u5ea6\u503c\uff08\u5f27\u5ea6\u503c\uff09\n  angle = percent \/ 100.0;\n  angle = angle * 2.0 * pi;\n\n  \/\/\u904d\u5386\u6240\u6709\u7684\u70b9\n  for (y = y0; y <= y1; y = y + 1)\n  {\n    for (x = x0; x <= x1; x = x + 1)\n    {\n      \/\/\u8ba1\u7b97\u8be5\u70b9\u8ddd\u79bb\u5706\u5fc3\u7684\u8ddd\u79bb\n      dx = x - widget->x;\n      dy = y - widget->y;\n      dy = -dy;\n      distance = sqrt(dx * dx + dy * dy);\n\n      \/\/\u70b9\u843d\u5728\u5706\u73af\u8303\u56f4\u5185\n      if ((distance >= widget->rin) && (distance <= widget->rout))\n      {\n        \/\/\u6309\u7167\u7b2c\u4e00\u8c61\u9650\u6c42\u89d2\u5ea6\n        angle1 = atan(fabs(dx) \/ fabs(dy));\n\n        \/\/\u89d2\u5ea6\u8865\u507f\uff0c\u8865\u507f\u5230 4 \u4e2a\u8c61\u9650\n        if ((dx >= 0) && (dy >= 0)) \/\/\u7b2c\u4e00\u8c61\u9650\n        {\n          angle1 = angle1;\n        }\n        else if ((dx >= 0) && (dy <= 0)) \/\/\u7b2c\u4e8c\u8c61\u9650\n        {\n          angle1 = 0.5 * pi + (0.5 * pi - angle1);\n        }\n        else if ((dx <= 0) && (dy <= 0)) \/\/\u7b2c\u4e09\u8c61\u9650\n        {\n          angle1 = angle1 + pi;\n        }\n        else \/\/\u7b2c\u56db\u8c61\u9650\n        {\n          angle1 = angle1 + pi + 2 * (0.5 * pi - angle1);\n        }\n\n        \/\/\u89d2\u5ea6\u4e5f\u843d\u5728\u8fd9\u4e2a\u8303\u56f4\n        if (angle1 <= angle)\n        {\n          LCDFastDrawPoint(x, y, widget->color);\n        }\n      }\n    }\n  }\n\n  \/\/\u89e3\u9501\u5c4f\u5e55\n  LCDUnlock();\n}\n<\/code><\/pre>\n\n\n\n
\u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff0c\u6bcf\u9694 100ms \u589e\u52a0\u4e00\u4e2a\u767e\u5206\u6bd4\u663e\u793a<\/p>\n\n\n\n
#include \"CirProgressBar.h\"\nint main(void)\n{\n  static StructCirProgressBar s_structCirProgressBar;\n  static unsigned int s_iProcessCnt = 0;\n\n  \/\/\u521d\u59cb\u5316\n  InitLCD();\n  InitBMP();\n\n  \/\/\u521b\u5efa\u73af\u5f62\u8fdb\u5ea6\u6761\n  s_structCirProgressBar.x = 400;\n  s_structCirProgressBar.y = 204;\n  s_structCirProgressBar.rin = 80;\n  s_structCirProgressBar.rout = 100;\n  s_structCirProgressBar.color = LCD_COLOR_GREEN;\n  CreateCirProgressBar(&s_structCirProgressBar);\n  \n  \/\/\u901f\u5ea6\u4eea\u8868\u76d8\u663e\u793a\n  while (1)\n  {\n    SetCirProgressBar(&s_structCirProgressBar, s_iProcessCnt);\n    s_iProcessCnt = (s_iProcessCnt + 1) % 101;\n    Sleep(100);\n  }\n  \n  return 0;\n}<\/code><\/pre>\n\n\n\n
\u6700\u7ec8\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002\u8bfb\u8005\u53ef\u4ee5\u4fee\u6539 SetCirProgressBar \u51fd\u6570\uff0c\u4e3a\u5706\u5f62\u8fdb\u56fe\u6761\u589e\u52a0\u767e\u5206\u6bd4\u663e\u793a\u3002\u5728\u8fd9\u91cc\u6ca1\u6709\u505a\u662f\u56e0\u4e3a\u6bd4\u8f83\u61d2\uff0c\u663e\u793a\u767e\u5206\u6bd4\u8fd8\u5f97\u8003\u8651\u5b57\u4f53\u7684\u900f\u660e\u663e\u793a\uff0c\u6709\u70b9\u9ebb\u70e6\u3002<\/p>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/span>\u65b9\u6cd5\u4e09\uff1a\u753b\u5706\u5f27<\/span><\/h2>\n\n\n\n
\u7b2c\u4e09\u4e2a\u65b9\u6cd5\u5219\u66f4\u7b80\u5355\uff0c\u76f4\u63a5\u7ed8\u5236\u4e00\u6bb5\u5706\u5f27\u5373\u53ef\u3002\u7ed8\u5236\u5706\u5f27\u7684\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff0c\u5728\u8fd9\u91cc\u4f7f\u7528\u4e86\u5fae\u5206\u7684\u65b9\u6cd5\uff0c\u628a\u5706\u5f27\u7ec6\u5206\u6210\u5f88\u591a\u4e2a\u5c0f\u6bb5\uff0c\u6bcf\u4e00\u6bb5\u90fd\u662f\u76f4\u7ebf\uff0c\u7136\u540e\u628a\u76f4\u7ebf\u8fde\u8d77\u6765\u5373\u53ef\u3002\u56e0\u4e3a\u4f7f\u7528\u4e86\u4e09\u89d2\u51fd\u6570\uff0c\u6240\u4ee5\u6548\u7387\u4f1a\u504f\u4f4e\u4e00\u4e9b\u3002\u8bfb\u8005\u53ef\u4ee5\u53c2\u8003\u7f51\u4e0a\uff0c\u522b\u4eba\u7684\u4f18\u79c0\u4ee3\u7801\u3002<\/p>\n\n\n\n
\u6b64\u5904\u7684\u753b\u7ebf\u51fd\u6570\u53ef\u4ee5\u6307\u5b9a\u7ebf\u6761\u5bbd\u5ea6\uff0c\u753b\u7ebf\u51fd\u6570\u4e2d\u7684\u6253\u70b9\u51fd\u6570\u53ef\u4ee5\u7528\u7ed8\u5236\u5b9e\u5fc3\u5706\u4ee3\u66ff\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u5b9e\u73b0\u4e00\u4e2a\u7b80\u5355\u7684\u3001\u652f\u6301\u5bbd\u5ea6\u7684\u753b\u7ebf\u51fd\u6570\u4e86\u3002<\/p>\n\n\n\n
\u5982\u679c\u8bfb\u8005\u89c9\u5f97\u7ed8\u5236\u7684\u5706\u5f27\u4e0d\u591f\u5706\uff0c\u90a3\u4e48\u53ef\u4ee5\u91ca\u653e\u51cf\u5c0f\u89d2\u5ea6\u9012\u589e\u7684\u91cf\uff0c\u5373\u51cf\u5c0f angle \u53d8\u91cf\u9012\u589e\u7684\u6b65\u957f\uff0c\u4f46\u662f\u8fd9\u6837\u4f1a\u4f7f\u5f97\u8ba1\u7b97\u91cf\u589e\u52a0\u3002<\/strong><\/p>\n\n\n\n
\/\/\u7ed8\u5236\u5706\u5f27\n\/\/x\u3001y\uff1a\u5706\u5fc3\u5750\u6807\n\/\/r\uff1a\u534a\u5f84\n\/\/angle0\u3001angle1\uff1a\u8d77\u70b9\u3001\u7ec8\u70b9\u89d2\u5ea6\uff0c\u6309\u987a\u65f6\u9488\u65b9\u5411\n\/\/size\uff1a\u5f27\u7ebf\u5bbd\u5ea6\n\/\/color: \u5f27\u7ebf\u989c\u8272\nvoid DrawArc(unsigned int x, unsigned int y, unsigned int r, double angle0, double angle1, unsigned int size, unsigned int color)\n{\n  double angle, radius;\n  unsigned int cirx, ciry, lastX, lastY;\n\n  \/\/\u8bb0\u5f55\u8d77\u70b9\u503c\n  cirx = x;\n  ciry = y;\n\n  \/\/\u8bb0\u5f55\u534a\u5f84\n  radius = r;\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\n  lastX = cirx + radius * sin(angle0);\n  lastY = ciry - radius * cos(angle0);\n\n  \/\/\u5f00\u59cb\u7ed8\u5236\n  angle = angle0;\n  while (angle <= angle1)\n  {\n    \/\/\u8ba1\u7b97\u4e0b\u4e00\u4e2a\u70b9\u7684\u4f4d\u7f6e\n    x = cirx + radius * sin(angle);\n    y = ciry - radius * cos(angle);\n\n    \/\/\u8fde\u7ebf\n    DrawLine(lastX, lastY, x, y, size, color);\n\n    \/\/\u4fdd\u5b58\u4e0a\u4e00\u4e2a\u70b9\u7684\u4fe1\u606f\n    lastX = x;\n    lastY = y;\n\n    \/\/\u89d2\u5ea6\u9012\u589e\n    angle = angle + 0.01;\n  }\n\n  \/\/\u786e\u4fdd\u7ec8\u70b9\u80fd\u8fde\u8d77\u6765\n  x = cirx + radius * sin(angle1);\n  y = ciry - radius * cos(angle1);\n\n  \/\/\u8fde\u7ebf\n  DrawLine(lastX, lastY, x, y, size, color);\n}<\/code><\/pre>\n\n\n\n
\u5982\u6b64\u4e00\u6765\uff0c\u73af\u5f62\u8fdb\u5ea6\u6761\u5237\u65b0\u51fd\u6570\u91cc\uff0c\u53ea\u9700\u8981\u8ba1\u7b97\u8d77\u70b9\u3001\u7ec8\u70b9\u6240\u5bf9\u5e94\u7684\u89d2\u5ea6\uff0c\u5373\u53ef\u5237\u65b0\u663e\u793a\uff0c\u7b80\u5355\u65b9\u4fbf\u3002<\/p>\n\n\n\n
\/\/\u66f4\u65b0\u8fdb\u5ea6\u6761\u663e\u793a\n\/\/widget\uff1a\u63a7\u4ef6\u63a7\u5236\u7ed3\u6784\u4f53\u9996\u5730\u5740\n\/\/percent\uff1a\u767e\u5206\u6bd4\uff0c0-100\nvoid SetCirProgressBar(StructCirProgressBar* widget, unsigned int percent)\n{\n  const double pi = 3.1415926535;\n  unsigned int x, y, x0, y0, x1, y1, i, size;\n  double angle0, angle1;\n\n  \/\/\u9650\u5b9a\u8f93\u5165\u8303\u56f4\n  if (percent > 100)\n  {\n    percent = 100;\n  }\n\n  \/\/\u89d2\u5ea6\u4e0e\u8bb0\u5f55\u503c\u76f8\u540c\uff0c\u76f4\u63a5\u8fd4\u56de\n  if (percent == widget->lastPercent)\n  {\n    return;\n  }\n\n  \/\/\u9501\u5b9a\u5c4f\u5e55\n  LCDLock();\n\n  \/\/\u89d2\u5ea6\u6bd4\u8bb0\u5f55\u503c\u8981\u5c0f\uff0c\u9700\u8981\u91cd\u7ed8\u80cc\u666f\n  if (percent < widget->lastPercent)\n  {\n    \/\/\u8ba1\u7b97\u663e\u793a\u533a\u57df\u5927\u5c0f\n    x0 = widget->x - widget->rout;\n    x1 = widget->x + widget->rout;\n    y0 = widget->y - widget->rout;\n    y1 = widget->y + widget->rout;\n\n    \/\/\u80cc\u666f\u91cd\u7ed8\n    i = 0;\n    for (y = y0; y <= y1; y++)\n    {\n      for (x = x0; x <= x1; x++)\n      {\n        LCDFastDrawPoint(x, y, widget->background[i++]);\n      }\n    }\n\n    \/\/\u5b9a\u4e49\u4e0a\u4e00\u4e2a\u89d2\u5ea6\u4e3a 0\n    widget->lastPercent = 0;\n  }\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\u89d2\u5ea6\u503c\uff08\u5f27\u5ea6\u5236\uff09\n  angle0 = widget->lastPercent \/ 100.0;\n  angle0 = angle0 * 2.0 * pi;\n\n  \/\/\u8ba1\u7b97\u7ec8\u70b9\u89d2\u5ea6\u503c\uff08\u5f27\u5ea6\u5236\uff09\n  angle1 = percent \/ 100.0;\n  angle1 = angle1 * 2.0 * pi;\n\n  \/\/\u8ba1\u7b97\u70b9\u76f4\u5f84\uff0c\u6b63\u597d\u7b49\u4e8e\u5706\u73af\u539a\u5ea6\n  size = widget->rout - widget->rin;\n\n  \/\/\u753b\u5f27\u7ebf\n  DrawArc(widget->x, widget->y, (widget->rout + widget->rin) \/ 2, angle0, angle1, size, widget->color);\n\n  \/\/\u89e3\u9501\u5c4f\u5e55\n  LCDUnlock();\n\n  \/\/\u4fdd\u5b58\u5f53\u524d\u8fdb\u5ea6\n  widget->lastPercent = percent;\n}\n<\/code><\/pre>\n\n\n\n
\u6700\u7ec8\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002\u56e0\u4e3a\u753b\u7ebf\u51fd\u6570\u4e2d\uff0c\u753b\u70b9\u662f\u901a\u8fc7\u753b\u5b9e\u5fc3\u5706\u5b9e\u73b0\u7684\uff0c\u8fd9\u5c31\u5bfc\u81f4\u4e86\u6709\u4e00\u4e9b\u50cf\u7d20\u70b9\u88ab\u91cd\u590d\u7ed8\u5236\u4e86\u591a\u6b21\uff0c\u6548\u7387\u4f1a\u504f\u4f4e\u4e00\u4e9b\u3002<\/p>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
<\/span>\u65b9\u6cd5\u56db\uff1a\u753b\u5c04\u7ebf<\/span><\/h2>\n\n\n\n
\u5f97\u76ca\u4e8e\u65b9\u6cd5\u4e09\u4e2d\u7ed8\u5236\u5706\u5f27\u7684\u65b9\u6cd5\uff0c\u6211\u4eec\u4e5f\u53ef\u4ee5\u7528\u7ed8\u5236\u5c04\u7ebf\u7684\u65b9\u5f0f\u5b9e\u73b0\u73af\u5f62\u8fdb\u5ea6\u6761\u3002\u5177\u4f53\u65b9\u6cd5\u4e0e\u65b9\u6cd5\u4e09\u7c7b\u4f3c\uff0c\u7ed8\u5236\u5706\u5f27\u65f6\uff0c\u4ee5\u5706\u5fc3\u4e3a\u4e2d\u5fc3\uff0c\u5411\u5916\u7ed8\u5236\u5c04\u7ebf\uff0c\u7531\u591a\u6761\u5c04\u7ebf\u7ec4\u6210\u4e00\u4e2a\u5b8c\u6574\u7684\u5706\u5f27\u3002\u7ed8\u5236\u5c04\u7ebf\u65f6\uff0c\u53ea\u8981\u524d\u540e\u4e24\u6761\u5c04\u7ebf\u7684\u89d2\u5ea6\u589e\u91cf\u8db3\u591f\u5c0f\uff0c\u5c04\u7ebf\u8db3\u591f\u5bc6\uff0c\u540c\u6837\u53ef\u4ee5\u8fbe\u5230\u65b9\u6cd5\u4e8c\u4e2d\u7684\u6548\u679c\u3002<\/p>\n\n\n\n
\/\/\u66f4\u65b0\u8fdb\u5ea6\u6761\u663e\u793a\n\/\/widget\uff1a\u63a7\u4ef6\u63a7\u5236\u7ed3\u6784\u4f53\u9996\u5730\u5740\n\/\/percent\uff1a\u767e\u5206\u6bd4\uff0c0-100\nvoid SetCirProgressBar(StructCirProgressBar* widget, unsigned int percent)\n{\n  const double pi = 3.1415926535;\n  unsigned int i;\n  double x, y, x0, y0, x1, y1;\n  double angle, angle0, angle1;\n\n  \/\/\u9650\u5b9a\u8f93\u5165\u8303\u56f4\n  if (percent > 100)\n  {\n    percent = 100;\n  }\n\n  \/\/\u89d2\u5ea6\u4e0e\u8bb0\u5f55\u503c\u76f8\u540c\uff0c\u76f4\u63a5\u8fd4\u56de\n  if (percent == widget->lastPercent)\n  {\n    return;\n  }\n\n  \/\/\u9501\u5b9a\u5c4f\u5e55\n  LCDLock();\n\n  \/\/\u7edf\u8ba1\u663e\u793a\u533a\u57df\u5927\u5c0f\n  x0 = widget->x - widget->rout;\n  x1 = widget->x + widget->rout;\n  y0 = widget->y - widget->rout;\n  y1 = widget->y + widget->rout;\n\n  \/\/\u89d2\u5ea6\u6bd4\u8bb0\u5f55\u503c\u8981\u5c0f\uff0c\u9700\u8981\u91cd\u7ed8\u80cc\u666f\n  if (percent < widget->lastPercent)\n  {\n    \/\/\u80cc\u666f\u91cd\u7ed8\n    i = 0;\n    for (y = y0; y <= y1; y = y + 1)\n    {\n      for (x = x0; x <= x1; x = x + 1)\n      {\n        LCDFastDrawPoint(x, y, widget->background[i++]);\n      }\n    }\n\n    \/\/\u5b9a\u4e49\u4e0a\u4e00\u4e2a\u89d2\u5ea6\u4e3a 0\n    widget->lastPercent = 0;\n  }\n\n  \/\/\u8ba1\u7b97\u8d77\u70b9\u89d2\u5ea6\u503c\uff08\u5f27\u5ea6\u5236\uff09\n  angle0 = widget->lastPercent \/ 100.0;\n  angle0 = angle0 * 2.0 * pi;\n\n  \/\/\u8ba1\u7b97\u7ec8\u70b9\u89d2\u5ea6\u503c\uff08\u5f27\u5ea6\u5236\uff09\n  angle1 = percent \/ 100.0;\n  angle1 = angle1 * 2.0 * pi;\n\n  \/\/\u4f9d\u6b21\u626b\u63cf\u6240\u6709\u7684\u89d2\u5ea6\n  angle = angle0;\n  while (angle <= angle1)\n  {\n    \/\/\u8ba1\u7b97\u7ebf\u6bb5\u7684\u8d77\u70b9\n    x0 = widget->x + widget->rin * sin(angle);\n    y0 = widget->y - widget->rin * cos(angle);\n\n    \/\/\u8ba1\u7b97\u7ebf\u6bb5\u7684\u7ec8\u70b9\uff08\u56e0\u4e3a\u753b\u7ebf\u65f6\uff0c\u4f7f\u7528\u7684\u753b\u70b9\u51fd\u6570\u662f 3x3 \u5927\u5c0f\uff0c\u7ebf\u6bb5\u7684\u957f\u5ea6\u53ef\u80fd\u4f1a\u591a 1 \u4e2a\u50cf\u7d20\u70b9\uff0c\u6240\u4ee5\u9700\u8981\u51cf\u53bb\uff09\n    x1 = widget->x + widget->rout * sin(angle);\n    y1 = widget->y - widget->rout * cos(angle);\n    if (x1 > widget->x) { x1 = x1 - 1; } else { x1 = x1 + 1; }\n    if (y1 > widget->y) { y1 = y1 - 1; } else { y1 = y1 + 1; }\n\n    \/\/\u753b\u7ebf\n    DrawLine(x0, y0, x1, y1, widget->color);\n\n    \/\/\u89d2\u5ea6\u9012\u589e\n    angle = angle + 0.03;\n  }\n\n  \/\/\u89e3\u9501\u5c4f\u5e55\n  LCDUnlock();\n\n  \/\/\u4fdd\u5b58\u5f53\u524d\u8fdb\u5ea6\n  widget->lastPercent = percent;\n}<\/code><\/pre>\n\n\n\n
\u753b\u7ebf\u65f6\uff0c\u4e0d\u80fd\u76f4\u63a5\u4f7f\u7528 LCD \u6a21\u5757\u7684\u753b\u7ebf\u51fd\u6570\uff0c\u5426\u5219\u5706\u73af\u4e0a\u4f1a\u4e0d\u53ef\u907f\u514d\u7684\u51fa\u73b0\u7f3a\u53e3\uff0c\u9700\u8981\u7279\u6b8a\u7684\u753b\u7ebf\u51fd\u6570\uff0c\u5177\u4f53\u5982\u4e0b\u3002\u8fd9\u4e2a\u753b\u7ebf\u51fd\u6570\u4e0e LCD \u6a21\u5757\u4e2d\u7684\u753b\u7ebf\u51fd\u6570\u7c7b\u4f3c\uff0c\u53ea\u4e0d\u8fc7\u753b\u70b9\u51fd\u6570\u53d8\u6210\u4e86\u4e00\u6b21\u6027\u7ed8\u5236\u4e5d\u4e2a\u70b9\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u6709\u6548\u907f\u514d\u7f3a\u53e3\u7684\u51fa\u73b0\u3002<\/p>\n\n\n\n
\/\/\u753b\u76f4\u7ebf\n\/\/x0\u3001y0\uff1a\u8d77\u70b9\u5750\u6807\n\/\/x1\u3001y1\uff1a\u7ec8\u70b9\u5750\u6807\n\/\/color\uff1a\u7ebf\u6761\u989c\u8272\nstatic void DrawLine(unsigned int x0, unsigned int y0, unsigned int x1, unsigned int y1, unsigned int color)\n{\n  int x, y, dx, dy, dx2, dy2, xStep, yStep, swap, sum;\n\n  \/\/\u8ba1\u7b97x\u3001y\u65b9\u5411\u589e\u91cf\n  dx = x1 - x0;\n  dy = y1 - y0;\n  if (dx < 0) { dx = -dx; }\n  if (dy < 0) { dy = -dy; }\n  dx2 = dx << 1;\n  dy2 = dy << 1;\n\n  \/\/\u659c\u7387\u5c0f\u4e8e\u7b49\u4e8e1\uff0c\u4ee5\u6a2a\u5750\u6807\u589e\u957f\u65b9\u5411\u8ba1\u7b97\n  if (dx >= dy)\n  {\n    \/\/\u4fee\u6b63\u7ed8\u5236\u65b9\u5411\uff08\u6309\u589e\u957f\u65b9\u5411\u7ed8\u5236\uff09\n    if (x0 > x1)\n    {\n      swap = x0; x0 = x1; x1 = swap;\n      swap = y0; y0 = y1; y1 = swap;\n    }\n\n    \/\/\u5224\u65ady\u589e\u957f\u65b9\u5411\n    if (y1 > y0) { yStep = 1; }\n    else { yStep = -1; }\n\n    x = x0;\n    y = y0;\n    sum = -dx;\n    while (x <= x1)\n    {\n      \/\/\u753b\u70b9\uff083x3\uff09\n      LCDFastDrawPoint(x - 1, y - 1, color);\n      LCDFastDrawPoint(x + 0, y - 1, color);\n      LCDFastDrawPoint(x + 1, y - 1, color);\n      LCDFastDrawPoint(x - 1, y + 0, color);\n      LCDFastDrawPoint(x + 0, y + 0, color);\n      LCDFastDrawPoint(x + 1, y + 0, color);\n      LCDFastDrawPoint(x - 1, y + 1, color);\n      LCDFastDrawPoint(x + 0, y + 1, color);\n      LCDFastDrawPoint(x + 1, y + 1, color);\n\n      \/\/\u6a2a\u5750\u6807\u81ea\u589e\n      x = x + 1;\n\n      \/\/\u7eb5\u5750\u6807\u5224\u522b\u5f0f\n      sum = sum + dy2;\n\n      \/\/\u7eb5\u5750\u6807\u81ea\u589e\n      if (sum >= 0)\n      {\n        sum = sum - dx2;\n        y = y + yStep;\n      }\n    }\n  }\n\n  \/\/\u659c\u7387\u5927\u4e8e1\uff0c\u4ee5\u7eb5\u5750\u6807\u589e\u957f\u65b9\u5411\u8ba1\u7b97\n  else\n  {\n    \/\/\u4fee\u6b63\u7ed8\u5236\u65b9\u5411\uff08\u6309\u589e\u957f\u65b9\u5411\u7ed8\u5236\uff09\n    if (y0 > y1)\n    {\n      swap = x0; x0 = x1; x1 = swap;\n      swap = y0; y0 = y1; y1 = swap;\n    }\n\n    \/\/\u5224\u65adx\u589e\u957f\u65b9\u5411\n    if (x1 > x0) { xStep = 1; }\n    else { xStep = -1; }\n\n    x = x0;\n    y = y0;\n    sum = -dy;\n    while (y <= y1)\n    {\n      \/\/\u753b\u70b9\uff083x3\uff09\n      LCDFastDrawPoint(x - 1, y - 1, color);\n      LCDFastDrawPoint(x + 0, y - 1, color);\n      LCDFastDrawPoint(x + 1, y - 1, color);\n      LCDFastDrawPoint(x - 1, y + 0, color);\n      LCDFastDrawPoint(x + 0, y + 0, color);\n      LCDFastDrawPoint(x + 1, y + 0, color);\n      LCDFastDrawPoint(x - 1, y + 1, color);\n      LCDFastDrawPoint(x + 0, y + 1, color);\n      LCDFastDrawPoint(x + 1, y + 1, color);\n\n      \/\/\u7eb5\u5750\u6807\u81ea\u589e\n      y = y + 1;\n\n      \/\/\u6a2a\u5750\u6807\u5224\u522b\u5f0f\n      sum = sum + dx2;\n\n      \/\/\u6a2a\u5750\u6807\u81ea\u589e\n      if (sum >= 0)\n      {\n        sum = sum - dy2;\n        x = x + xStep;\n      }\n    }\n  }\n}<\/code><\/pre>\n\n\n\n
\u6700\u7ec8\u5b9e\u73b0\u7684\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002\u8fd9\u4e2a\u5706\u73af\u6709\u70b9\u7c97\u7cd9\uff0c\u6ca1\u6709\u65b9\u6cd5\u4e8c\u4e2d\u7684\u6548\u679c\u597d\uff0c\u4e0d\u8fc7\u80dc\u5728\u6548\u7387\u7565\u9ad8\uff0c\u4e0d\u7528\u626b\u63cf\u6240\u6709\u7684\u50cf\u7d20\u70b9\u3002<\/p>\n\n\n
\n
\"\"<\/figure><\/div>\n\n\n
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    \/\/\u89d2\u5ea6\u9012\u589e\n    angle = angle + 0.1;<\/code><\/pre>\n\n\n\n
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\n
\"\"<\/figure><\/div>\n\n\n
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