{"id":1303,"date":"2023-03-22T13:48:06","date_gmt":"2023-03-22T05:48:06","guid":{"rendered":"https:\/\/www.huangrongzhen.ink\/?p=1303"},"modified":"2023-03-22T14:08:56","modified_gmt":"2023-03-22T06:08:56","slug":"%e5%8d%95%e7%89%87%e6%9c%ba-gui-%e8%ae%be%e8%ae%a1%ef%bc%88%e5%8d%81%e4%b9%9d%ef%bc%89-%e6%91%87%e6%9d%86","status":"publish","type":"post","link":"https:\/\/www.huangrongzhen.ink\/?p=1303","title":{"rendered":"\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u5341\u4e5d\uff09- \u6447\u6746"},"content":{"rendered":"<div class=\"wp-block-post-excerpt\"><p class=\"wp-block-post-excerpt__excerpt\">\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f <\/p><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%AE%80%E4%BB%8B\"><\/span>\u7b80\u4ecb<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6447\u6746\u63a7\u4ef6\u662f\u4e00\u4e2a\u8f93\u5165\u63a7\u4ef6\uff0c\u5e38\u5e38\u7528\u4e8e\u6e38\u620f\u5f00\u53d1\uff0c\u6216\u8005\u7528\u4e8e\u63a7\u5236\u9065\u63a7\u8f66\u3001\u65e0\u4eba\u673a\u7b49\u8bbe\u5907\uff0c\u5177\u4f53\u5982\u4e0b\u56fe\u6240\u793a\u3002\u4e0b\u56fe\u4e2d\uff0c\u5de6\u53f3\u4e24\u4e2a\u63a7\u4ef6\u5373\u4e3a\u6447\u6746\u63a7\u4ef6\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"640\" height=\"317\" src=\"http:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u6447\u6746\u793a\u4f8b-20230322.png\" alt=\"\" class=\"wp-image-1302\" srcset=\"https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u6447\u6746\u793a\u4f8b-20230322.png 640w, https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u6447\u6746\u793a\u4f8b-20230322-300x149.png 300w, https:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u6447\u6746\u793a\u4f8b-20230322-548x271.png 548w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/figure><\/div>\n\n\n<p>\u9996\u5148\u653e\u4e00\u5f20\u7ed3\u679c\u56fe\uff0c\u672c\u7ae0\u4e2d\u5b9e\u73b0\u7684\u6447\u6746\u6548\u679c\u5982\u4e0b\u6240\u793a\u3002\u4e0e\u4e0a\u56fe\u4e0d\u4e00\u6837\u7684\u662f\uff0c\u672c\u6587\u4e2d\u5b9e\u73b0\u7684\u6447\u6746\u63a7\u4ef6\uff0c\u4e0d\u7ba1\u662f\u80cc\u666f\u533a\uff0c\u8fd8\u662f\u6ed1\u5757\u90e8\u5206\uff0c\u90fd\u662f\u5e26\u900f\u660e\u5ea6\u7684\uff0c\u8fd9\u6837\u663e\u793a\u7684\u6548\u679c\u4f1a\u66f4\u597d\u4e00\u4e9b\u3002\u5728\u5355\u7247\u673a\u4e2d\uff0c\u900f\u660e\u5ea6\u53e0\u52a0\u4f1a\u5e26\u6765\u7b97\u529b\u4e0a\u7684\u5de8\u5927\u6d88\u8017\uff0c\u5982\u679c\u5904\u7406\u7684\u7684\u6027\u80fd\u4e0d\u591f\uff0c\u4e5f\u53ef\u4ee5\u76f4\u63a5\u7ed8\u5236\u5b9e\u5fc3\u5706\uff0c\u4e0d\u8003\u8651\u900f\u660e\u5ea6\u3002\u5f53\u7136\uff0c\u5982\u679c\u8d44\u6e90\u5145\u88d5\uff0c\u4e5f\u53ef\u4ee5\u9009\u62e9\u76f4\u63a5\u8d34\u56fe\u3002<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full\"><img decoding=\"async\" loading=\"lazy\" width=\"793\" height=\"507\" src=\"http:\/\/www.huangrongzhen.ink\/wp-content\/uploads\/2023\/03\/\u5355\u7247\u673a-GUI-\u8bbe\u8ba1\uff08\u5341\u4e5d\uff09-\u6447\u6746-\u5b9e\u9a8c\u7ed3\u679c-20230322.gif\" alt=\"\" class=\"wp-image-1301\"\/><\/figure><\/div>\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%8E%A7%E4%BB%B6%E8%AE%BE%E5%A4%87%E7%BB%93%E6%9E%84%E4%BD%93%E5%92%8C_API_%E6%8E%A5%E5%8F%A3%E8%AE%BE%E8%AE%A1\"><\/span>\u63a7\u4ef6\u8bbe\u5907\u7ed3\u6784\u4f53\u548c API \u63a5\u53e3\u8bbe\u8ba1<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u4e3a\u4e86\u65b9\u4fbf\u7528\u6237\u79fb\u690d\u548c\u4f7f\u7528\uff0c\u6211\u4eec\u4f7f\u7528\u4e00\u4e2a\u7ed3\u6784\u4f53\u6765\u7ba1\u7406\u6447\u6746\u63a7\u4ef6\uff0c\u8fd9\u6837\u7528\u6237\u5c31\u53ef\u4ee5\u521b\u5efa\u4efb\u610f\u591a\u7684\u6447\u6746\u63a7\u4ef6\u5728\u9879\u76ee\u4e2d\uff0c\u5177\u4f53\u5982\u4e0b\u8ff0\u4ee3\u7801\u6240\u793a\u3002\u521d\u59cb\u5316\u65f6\uff0c\u7528\u6237\u9700\u8981\u63d0\u4f9b\u63a7\u4ef6\u7684\u4e2d\u5fc3\u5750\u6807\u3001\u80cc\u666f\/\u6ed1\u5757\u7684\u534a\u5f84\u3001\u989c\u8272\u4ee5\u53ca\u900f\u660e\u5ea6\u3002\u81f3\u4e8e\u540e\u8fb9\u7684\u6210\u5458\u53d8\u91cf\uff0c\u4f8b\u5982\u5f53\u524d\u89d2\u5ea6\u3001\u8ddd\u79bb\u503c\u7b49\uff0c\u90fd\u662f\u8fd0\u884c\u8fc7\u7a0b\u4e2d\u81ea\u52a8\u8ba1\u7b97\u5f97\u51fa\u7684\u3002<\/p>\n\n\n\n<p>\u4e3a\u4e86\u9a71\u52a8\u6447\u6746\u63a7\u4ef6\u8fd0\u884c\uff0c\u9700\u8981\u4e3a\u6447\u6746\u63a7\u4ef6\u5b9a\u4e49\u4e00\u4e2a\u8f6e\u8be2\u51fd\u6570\uff0c\u6bcf\u9694\u4e00\u6bb5\u65f6\u95f4\u626b\u63cf\u4e00\u4e0b\u6447\u6746\u63a7\u4ef6\uff0c\u66f4\u65b0\u63a7\u4ef6\u663e\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/\/\u6447\u6746\u63a7\u5236\u7ed3\u6784\u4f53\ntypedef struct\n{\n  unsigned int    x, y, rBg, rButton;    \/\/\u4e2d\u5fc3\u5750\u6807\u3001\u80cc\u666f\u534a\u5f84\u3001\u6ed1\u5757\u534a\u5f84\n  unsigned int    bgColor, buttonColor;  \/\/\u989c\u8272\n  unsigned char   bgAlpha, buttonAlpha;  \/\/\u900f\u660e\u5ea6\n  unsigned int    curAngle;              \/\/\u5f53\u524d\u89d2\u5ea6\uff0c\u89d2\u5ea6\u5236\uff0c\u4ee5\u5782\u76f4\u5411\u4e0a\u4e3a\u96f6\uff0c\u6309\u987a\u65f6\u9488\u65b9\u5411\u589e\u6da8\n  unsigned int    curDistance;           \/\/\u5f53\u524d\u6ed1\u5757\u4e0e\u63a7\u4ef6\u4e2d\u5fc3\u7684\u8ddd\u79bb\n  unsigned int    lastX, lastY;          \/\/\u4e0a\u4e00\u6b21\u6309\u4e0b\u7684\u5750\u6807\n  unsigned short* buttonBg;              \/\/\u6309\u952e\u7684\u80cc\u666f\uff0c\u7528\u4e8e\u6309\u952e\u7684\u79fb\u52a8\n  unsigned int    isPress;               \/\/\u662f\u5426\u88ab\u6309\u4e0b\u6807\u5fd7\u4f4d\n}StructRockerDev;\n\n\/\/API  \u63a5\u53e3\nvoid CreateRocker(StructRockerDev* widget);                                               \/\/\u521b\u5efa\u6447\u6746\u63a7\u4ef6\nvoid RockerPoll(StructRockerDev* widget);                                                 \/\/\u8f6e\u8be2\u51fd\u6570\nint  GetRockResult(StructRockerDev* widget, unsigned int* angle, unsigned int* distance); \/\/\u83b7\u53d6\u6447\u6746\u68c0\u6d4b\u7ed3\u679c<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%BA%90%E7%A0%81%E4%B8%AD%E9%9C%80%E8%A6%81%E5%8C%85%E5%90%AB%E7%9A%84%E5%A4%B4%E6%96%87%E4%BB%B6\"><\/span>\u6e90\u7801\u4e2d\u9700\u8981\u5305\u542b\u7684\u5934\u6587\u4ef6<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6447\u6746\u9a71\u52a8\u4e2d\uff0c\u9700\u8981\u4f7f\u7528\u5230\u4e09\u89d2\u51fd\u6570\u3001\u52a8\u6001\u5185\u5b58\u5206\u914d\u7b49\u63a5\u53e3\uff0c\u9700\u8981\u5305\u542b\u7684\u5934\u6587\u4ef6\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">#include \"Rocker.h\"\n#include \".\/LCD\/LCD.h\"\n#include \"math.h\"\n#include \"malloc.h\"\n#include \"stdio.h\"<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E7%BB%98%E5%88%B6%E9%80%8F%E6%98%8E%E7%9A%84%E5%AE%9E%E5%BF%83%E5%9C%86\"><\/span>\u7ed8\u5236\u900f\u660e\u7684\u5b9e\u5fc3\u5706<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6447\u6746\u9a71\u52a8\u4e2d\uff0c\u4e0d\u8bba\u662f\u80cc\u666f\u8fd8\u662f\u6ed1\u5757\uff0c\u90fd\u662f\u4e00\u4e2a\u900f\u660e\u7684\u5b9e\u5fc3\u5706\uff0c\u900f\u660e\u5b9e\u5fc3\u5706\u7684\u9a71\u52a8\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<p>\u7ed8\u5236\u5b9e\u5fc3\u5706\u65f6\uff0c\u4e0d\u80fd\u4f7f\u7528\u73af\u5f62\u8fdb\u5ea6\u6761\u4e2d\u7684\u9a71\u52a8\uff0c\u56e0\u4e3a Bresenham \u7b97\u6cd5\u7ed8\u5236\u5b9e\u5fc3\u5706\u65f6\uff0c\u4f1a\u5bfc\u81f4\u4e00\u4e9b\u70b9\u88ab\u91cd\u590d\u7ed8\u5236\uff0c\u800c\u900f\u660e\u5ea6\u53e0\u52a0\u5177\u6709\u7d2f\u52a0\u6548\u5e94\uff0c\u6240\u4ee5\u4f7f\u7528 Bresenham \u7b97\u6cd5\u4f1a\u9020\u6210\u67d0\u4e9b\u533a\u57df\u989c\u8272\u66f4\u6df1\u3002\u4e3a\u4e86\u907f\u514d\u8fd9\u79cd\u72b6\u51b5\uff0c\u6211\u4eec\u91c7\u7528\u4e86\u8001\u65b9\u6cd5\uff0c\u5148\u8ba1\u7b97\u5b9e\u5fc3\u5706\u5750\u6807\u8303\u56f4\uff0c\u7136\u540e\u626b\u63cf\u8fd9\u7bc7\u533a\u57df\u5185\u6240\u6709\u7684\u70b9\uff0c\u8ba1\u7b97\u8fd9\u4e9b\u70b9\u4e0e\u5706\u5fc3\u7684\u8ddd\u79bb\u3002\u5982\u679c\u8ddd\u79bb\u5c0f\u4e8e\u7b49\u4e8e\u534a\u5f84\uff0c\u90a3\u4e48\u5c31\u7ed8\u5236\u8be5\u70b9\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a DrawPoint\n* \u51fd\u6570\u529f\u80fd\uff1a \u753b\u70b9\n* \u8f93\u5165\u53c2\u6570\uff1a x\u3001y\uff1a\u5750\u6807\uff0ccolor\uff1a\u989c\u8272\uff0calpha\uff1a\u900f\u660e\u5ea6\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a void\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a \u53ea\u80fd\u7528\u4e8e RGB565\n*********************************************************************************************************\/\nstatic void DrawPoint(unsigned int x, unsigned int y, unsigned int color, unsigned int alpha)\n{\n  unsigned int foreColor, backColor;\n  unsigned int backR, backG, backB, foreR, foreG, foreB, colorAlpha;\n  unsigned int resultR, resultG, resultB;\n  unsigned int result;\n\n  \/\/\u83b7\u53d6\u524d\u666f\u8272\n  foreColor = color;\n\n  \/\/\u83b7\u53d6\u80cc\u666f\u8272\n  backColor = LCDReadPoint(x, y);\n\n  \/\/\u63d0\u524d\u524d\u666f RGB \u901a\u9053\u6570\u636e\n  foreR = ((foreColor &gt;&gt; 11) &amp; 0x1F);\n  foreG = ((foreColor &gt;&gt; 5) &amp; 0x3F);\n  foreB = ((foreColor &gt;&gt; 0) &amp; 0x1F);\n\n  \/\/\u63d0\u524d\u80cc\u666f RGB \u901a\u9053\u6570\u636e\n  backR = ((backColor &gt;&gt; 11) &amp; 0x1F);\n  backG = ((backColor &gt;&gt; 5) &amp; 0x3F);\n  backB = ((backColor &gt;&gt; 0) &amp; 0x1F);\n\n  \/\/\u83b7\u53d6\u900f\u660e\u5ea6\n  colorAlpha = alpha;\n\n  \/\/RGB\u901a\u9053\u900f\u660e\u5ea6\u53e0\u52a0\n  resultR = (foreR * colorAlpha + backR * (0xFF - colorAlpha)) &gt;&gt; 8;\n  resultG = (foreG * colorAlpha + backG * (0xFF - colorAlpha)) &gt;&gt; 8;\n  resultB = (foreB * colorAlpha + backB * (0xFF - colorAlpha)) &gt;&gt; 8;\n\n  \/\/\u7ec4\u5408\u6210RGB565\u683c\u5f0f\n  result = (((u16)resultR) &lt;&lt; 11) | (((u16)resultG) &lt;&lt; 5) | (((u16)resultB) &lt;&lt; 0);\n\n  \/\/\u753b\u70b9\n  LCDFastDrawPoint(x, y, result);\n}\n\n\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a DrawCircle\n* \u51fd\u6570\u529f\u80fd\uff1a \u7ed8\u5236\u5b9e\u5fc3\u5706\n* \u8f93\u5165\u53c2\u6570\uff1a x\uff0cy\uff1a\u5706\u5fc3\u5750\u6807\uff0cr\uff1a\u534a\u5f84\uff0ccolor\uff1a\u989c\u8272\uff0calpha\uff1a\u900f\u660e\u5ea6\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a void\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a\n*********************************************************************************************************\/\nstatic void DrawCircle(unsigned int x, unsigned int y, unsigned int r, unsigned int color, unsigned int alpha)\n{\n  unsigned int xCir, yCir, x0, y0, x1, y1;\n  double dx, dy, distance;\n\n  \/\/\u8bb0\u5f55\u5706\u5fc3\u5750\u6807\n  xCir = x;\n  yCir = y;\n\n  \/\/\u8ba1\u7b97\u663e\u793a\u533a\u57df\u5927\u5c0f\n  x0 = xCir - r;\n  x1 = xCir + r;\n  y0 = yCir - r;\n  y1 = yCir + r;\n\n  \/\/\u4f9d\u6b21\u626b\u63cf\u6240\u6709\u7684\u70b9\n  for (y = y0; y &lt;= y1; y++)\n  {\n    for (x = x0; x &lt;= x1; x++)\n    {\n      \/\/\u8ba1\u7b97\u5f53\u524d\u5750\u6807\u4e0e\u5706\u5fc3\u7684\u8ddd\u79bb\n      dx = abs(x - xCir);\n      dy = abs(y - yCir);\n      distance = sqrt(dx * dx + dy * dy);\n\n      \/\/\u8ddd\u79bb\u5706\u5fc3\u7684\u8ddd\u79bb\u5c0f\u4e8e\u7b49\u4e8e\u534a\u5f84\uff0c\u7ed8\u5236\u8be5\u70b9\n      if (distance &lt;= r)\n      {\n        DrawPoint(x, y, color, alpha);\n      }\n    }\n  }\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%9B%B4%E6%96%B0%E6%BB%91%E5%9D%97%E6%98%BE%E7%A4%BA\"><\/span>\u66f4\u65b0\u6ed1\u5757\u663e\u793a<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5728\u6447\u6746\u63a7\u4ef6\u7684\u8bbe\u5907\u7ed3\u6784\u4f53\u4e2d\uff0c\u6210\u5458\u53d8\u91cf buttonBg \u8868\u793a\u6ed1\u5757\u7684\u80cc\u666f\u7f13\u51b2\u533a\uff0c\u521b\u5efa\u6447\u6746\u63a7\u4ef6\u65f6\uff0c\u80cc\u666f\u7f13\u51b2\u533a\u6240\u9700\u7684\u5185\u5b58\u7531\u52a8\u6001\u5185\u5b58\u5206\u914d\u3002<\/p>\n\n\n\n<p>\u66f4\u65b0\u6ed1\u5757\u663e\u793a\u65f6\uff0c\u9996\u5148\u8981\u5c06\u5f53\u524d\u6ed1\u5757\u6240\u5728\u4f4d\u7f6e\u7684\u80cc\u666f\u586b\u56de\u53bb\uff0c\u5373\u80cc\u666f\u91cd\u7ed8\uff0c\u8fd9\u6837\u5c31\u53ef\u4ee5\u64e6\u9664\u6ed1\u5757\u6240\u5728\u533a\u57df\u3002\u7136\u540e\uff0c\u5728\u76ee\u7684\u5730\u7ed8\u5236\u6ed1\u5757\u4e4b\u524d\uff0c\u9996\u5148\u5c06\u8be5\u533a\u57df\u7684\u50cf\u7d20\u70b9\u6570\u636e\u9884\u5148\u4fdd\u5b58\u4e0b\u6765\uff0c\u4e3a\u4e0b\u6b21\u80cc\u666f\u91cd\u7ed8\u505a\u51c6\u5907\u3002\u6700\u540e\u624d\u662f\u7ed8\u5236\u6ed1\u5757\uff0c\u5c06\u6ed1\u5757\u663e\u793a\u5230\u5c4f\u5e55\u4e0a\u3002\u7ecf\u8fc7\u8fd9\u4e00\u7cfb\u5217\u590d\u6742\u7684\u64cd\u4f5c\u540e\uff0c\u624d\u80fd\u5c06\u6ed1\u5757\u4ece\u4e00\u4e2a\u4f4d\u7f6e\u79fb\u52a8\u5230\u53e6\u4e00\u4e2a\u4f4d\u7f6e\u3002\u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a DrawButton\n* \u51fd\u6570\u529f\u80fd\uff1a \u7ed8\u5236\u6ed1\u5757\n* \u8f93\u5165\u53c2\u6570\uff1a widget\uff1a\u63a7\u4ef6\u9996\u5730\u5740\n*            x\uff0cy\uff1a\u65b0\u7684\u5750\u6807\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a void\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a\n*********************************************************************************************************\/\nstatic void DrawButton(StructRockerDev* widget, unsigned int x, unsigned int y)\n{\n  unsigned int x0, y0, x1, y1, i, targetX, targetY;\n\n  \/\/\u4fdd\u5b58\u76ee\u6807\u4f4d\u7f6e\u4fe1\u606f\n  targetX = x;\n  targetY = y;\n\n  \/\/\u65b0\u7684\u5750\u6807\u4e0e\u65e7\u7684\u5750\u6807\u76f8\u540c\n  if ((targetX == widget-&gt;lastX) &amp;&amp; (targetY == widget-&gt;lastY))\n  {\n    return;\n  }\n\n  \/\/\u8ba1\u7b97\u80cc\u666f\u6240\u5728\u4f4d\u7f6e\n  x0 = widget-&gt;lastX - widget-&gt;rButton;\n  x1 = widget-&gt;lastX + widget-&gt;rButton;\n  y0 = widget-&gt;lastY - widget-&gt;rButton;\n  y1 = widget-&gt;lastY + widget-&gt;rButton;\n\n  \/\/\u80cc\u666f\u91cd\u7ed8\n  i = 0;\n  for (y = y0; y &lt;= y1; y++)\n  {\n    for (x = x0; x &lt;= x1; x++)\n    {\n      LCDFastDrawPoint(x, y, widget-&gt;buttonBg[i++]);\n    }\n  }\n\n  \/\/\u8ba1\u7b97\u65b0\u7684\u663e\u793a\u533a\u57df\n  x0 = targetX - widget-&gt;rButton;\n  x1 = targetX + widget-&gt;rButton;\n  y0 = targetY - widget-&gt;rButton;\n  y1 = targetY + widget-&gt;rButton;\n\n  \/\/\u4fdd\u5b58\u80cc\u666f\n  i = 0;\n  for (y = y0; y &lt;= y1; y++)\n  {\n    for (x = x0; x &lt;= x1; x++)\n    {\n      widget-&gt;buttonBg[i++] = LCDReadPoint(x, y);\n    }\n  }\n\n  \/\/\u7ed8\u5236\u6ed1\u5757\n  DrawCircle(targetX, targetY, widget-&gt;rButton, widget-&gt;buttonColor, widget-&gt;buttonAlpha);\n\n  \/\/\u4fdd\u5b58\u5f53\u524d\u4f4d\u7f6e\n  widget-&gt;lastX = targetX;\n  widget-&gt;lastY = targetY;\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E5%88%9B%E5%BB%BA%E5%87%BD%E6%95%B0\"><\/span>\u521b\u5efa\u51fd\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u521b\u5efa\u51fd\u6570\u4e2d\uff0c\u4e3b\u8981\u5de5\u4f5c\u5c31\u662f\u4e3a\u6ed1\u5757\u7684\u80cc\u666f\u7f13\u51b2\u533a\u7533\u8bf7\u52a8\u6001\u5185\u5b58\uff0c\u5177\u4f53\u5982\u4e0b\u6240\u793a\u3002\u7ed8\u5236\u51fa\u80cc\u666f\u5706\u540e\uff0c\u9996\u5148\u8981\u5c06\u6ed1\u5757\u80cc\u666f\u50cf\u7d20\u70b9\u6570\u636e\u4fdd\u5b58\u5230\u80cc\u666f\u7f13\u51b2\u533a\uff0c\u4e3a\u7b2c\u4e00\u6b21\u80cc\u666f\u91cd\u7ed8\u505a\u51c6\u5907\uff0c\u7136\u540e\u624d\u80fd\u7ed8\u5236\u6ed1\u5757\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a CreateRocker\n* \u51fd\u6570\u529f\u80fd\uff1a \u521b\u5efa\u6447\u6746\u63a7\u4ef6\n* \u8f93\u5165\u53c2\u6570\uff1a widget: \u63a7\u4ef6\u9996\u5730\u5740\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a void\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a \u53ea\u80fd\u7528\u4e8e RGB565\n*********************************************************************************************************\/\nvoid CreateRocker(StructRockerDev* widget)\n{\n  unsigned int x, y, x0, y0, x1, y1, width, height, i;\n\n  \/\/\u753b\u80cc\u666f\u5706\n  DrawCircle(widget-&gt;x, widget-&gt;y, widget-&gt;rBg, widget-&gt;bgColor, widget-&gt;bgAlpha);\n\n  \/\/\u8ba1\u7b97\u6ed1\u5757\u663e\u793a\u533a\u57df\n  x0 = widget-&gt;x - widget-&gt;rButton;\n  x1 = widget-&gt;x + widget-&gt;rButton;\n  y0 = widget-&gt;y - widget-&gt;rButton;\n  y1 = widget-&gt;y + widget-&gt;rButton;\n  width = x1 - x0 + 1;\n  height = y1 - y0 + 1;\n\n  \/\/\u4e3a\u6ed1\u5757\u80cc\u666f\u7533\u8bf7\u52a8\u6001\u5185\u5b58\n  widget-&gt;buttonBg = (unsigned short*)malloc(width * height * 2);\n  if (NULL == widget-&gt;buttonBg)\n  {\n    printf(\"CreateRocker: Fail to malloc\\r\\n\");\n    while (1) {}\n  }\n\n  \/\/\u4fdd\u5b58\u6ed1\u5757\u80cc\u666f\u533a\u57df\n  i = 0;\n  for (y = y0; y &lt;= y1; y++)\n  {\n    for (x = x0; x &lt;= x1; x++)\n    {\n      widget-&gt;buttonBg[i++] = LCDReadPoint(x, y);\n    }\n  }\n\n  \/\/\u7ed8\u5236\u6ed1\u5757\n  DrawCircle(widget-&gt;x, widget-&gt;y, widget-&gt;rButton, widget-&gt;buttonColor, widget-&gt;buttonAlpha);\n  widget-&gt;lastX = widget-&gt;x;\n  widget-&gt;lastY = widget-&gt;y;\n\n  \/\/\u6807\u8bb0\u5c1a\u672a\u88ab\u6309\u4e0b\n  widget-&gt;isPress = 0;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%BD%AE%E8%AF%A2%E5%87%BD%E6%95%B0\"><\/span>\u8f6e\u8be2\u51fd\u6570<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u8f6e\u8be2\u51fd\u6570\u4e2d\uff0c\u53ea\u9700\u8981\u4e0d\u505c\u7684\u8c03\u7528 DrawButton \u51fd\u6570\u5237\u65b0\u6ed1\u5757\u663e\u793a\u4f4d\u7f6e\u5373\u53ef\u3002\u7ed8\u5236\u6ed1\u5757\u65f6\uff0c\u6709\u663e\u793a\u533a\u57df\u9650\u5236\uff0c\u4e0d\u80fd\u7ed8\u5236\u5230\u80cc\u666f\u5706\u5916\u8fb9\uff0c\u56e0\u6b64\u8c03\u7528 DrawButton \u51fd\u6570\u4e4b\u524d\uff0c\u8fd8\u5f97\u6821\u9a8c\u5f53\u524d\u89e6\u70b9\u5750\u6807\u662f\u5426\u8d8a\u754c\uff0c\u5982\u679c\u8d8a\u754c\uff0c\u5219\u9700\u8981\u901a\u8fc7\u51e0\u4f55\u5173\u7cfb\uff0c\u8ba1\u7b97\u51fa\u6ed1\u5757\u5728\u8fb9\u754c\u5904\u7684\u5750\u6807\u3002\u5177\u4f53\u5b9e\u73b0\u4ee3\u7801\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a RockerPoll\n* \u51fd\u6570\u529f\u80fd\uff1a \u6447\u6746\u63a7\u4ef6\u8f6e\u8be2\u51fd\u6570\n* \u8f93\u5165\u53c2\u6570\uff1a widget: \u63a7\u4ef6\u9996\u5730\u5740\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a void\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a \u53ea\u80fd\u7528\u4e8e RGB565\n*********************************************************************************************************\/\nvoid RockerPoll(StructRockerDev* widget)\n{\n  const double pi = 3.1415926535;\n  unsigned int tx, ty, tflag;\n  double x, y, dx, dy, distance, angle;\n\n  \/\/\u83b7\u53d6\u5f53\u524d\u89e6\u5c4f\u5750\u6807\u4fe1\u606f\n  tflag = GetTouch(&amp;tx, &amp;ty);\n\n  \/\/\u672a\u68c0\u6d4b\u5230\u6309\u4e0b\n  if (0 == tflag)\n  {\n    widget-&gt;curAngle = 0;\n    widget-&gt;curDistance = 0;\n    DrawButton(widget, widget-&gt;x, widget-&gt;y);\n    widget-&gt;isPress = 0;\n    return;\n  }\n\n  \/\/\u6b63\u597d\u843d\u5728\u63a7\u4ef6\u4e2d\u5fc3\uff0c\u6ed1\u5757\u5f52\u4f4d\uff08\u5b9a\u4e49\u843d\u5230\u539f\u70b9\u4e0a\u7684\u89d2\u5ea6\u503c\u4e3a\u96f6\uff09\n  if ((tx == widget-&gt;x) &amp;&amp; (ty == widget-&gt;y))\n  {\n    widget-&gt;curAngle = 0;\n    widget-&gt;curDistance = 0;\n    DrawButton(widget, widget-&gt;x, widget-&gt;y);\n    widget-&gt;isPress = 1;\n    return;\n  }\n\n  \/\/\u8ba1\u7b97\u5f53\u524d\u5750\u6807\u503c\u4e0e\u63a7\u4ef6\u4e2d\u5fc3\u7684\u8ddd\u79bb\n  x = tx; y = ty;\n  dx = x - widget-&gt;x;\n  dy = y - widget-&gt;y;\n  dy = -dy;\n  distance = sqrt(dx * dx + dy * dy);\n\n  \/\/\u6309\u7167\u7b2c\u4e00\u8c61\u9650\u6c42\u89d2\u5ea6\n  angle = atan(fabs(dx) \/ fabs(dy));\n\n  \/\/\u89d2\u5ea6\u8865\u507f\uff0c\u8865\u507f\u5230 4 \u4e2a\u8c61\u9650\n  if ((dx &gt;= 0) &amp;&amp; (dy &gt;= 0)) \/\/\u7b2c\u4e00\u8c61\u9650\n  {\n    angle = angle;\n  }\n  else if ((dx &gt;= 0) &amp;&amp; (dy &lt;= 0)) \/\/\u7b2c\u4e8c\u8c61\u9650\n  {\n    angle = 0.5 * pi + (0.5 * pi - angle);\n  }\n  else if ((dx &lt;= 0) &amp;&amp; (dy &lt;= 0)) \/\/\u7b2c\u4e09\u8c61\u9650\n  {\n    angle = angle + pi;\n  }\n  else\n  {\n    angle = angle + pi + 2 * (0.5 * pi - angle);\n  }\n\n  \/\/\u8fd8\u5728\u63a7\u4ef6\u8303\u56f4\u5185\n  if (distance &lt;= widget-&gt;rBg)\n  {\n    \/\/\u66f4\u65b0\u663e\u793a\n    DrawButton(widget, tx, ty);\n\n    \/\/\u6807\u8bb0\u88ab\u6309\u4e0b\n    widget-&gt;isPress = 1;\n\n    \/\/\u4fdd\u5b58\u5f53\u524d\u89d2\u5ea6\u503c\u548c\u8ddd\u79bb\u503c\n    widget-&gt;curAngle = 180.0 * angle \/ pi;\n    widget-&gt;curDistance = distance;\n  }\n\n  \/\/\u8d85\u51fa\u4e86\u63a7\u4ef6\u8303\u56f4\uff0c\u9700\u8981\u628a\u5750\u6807\u7f29\u5c0f\u5230\u8fb9\u754c\u4e0a\n  else\n  {\n    \/\/\u5982\u679c\u4e0a\u4e00\u6b21\u68c0\u6d4b\u65f6\uff0c\u63a7\u4ef6\u6709\u88ab\u6309\u4e0b\n    if (0 != widget-&gt;isPress)\n    {\n      \/\/\u8ba1\u7b97\u76ee\u7684\u5750\u6807\n      x = widget-&gt;x + widget-&gt;rBg * sin(angle);\n      y = widget-&gt;y - widget-&gt;rBg * cos(angle);\n\n      \/\/\u66f4\u65b0\u663e\u793a\n      DrawButton(widget, x, y);\n\n      \/\/\u4fdd\u5b58\u5f53\u524d\u89d2\u5ea6\u503c\u548c\u8ddd\u79bb\u503c\n      widget-&gt;curAngle = 180.0 * angle \/ pi;\n      widget-&gt;curDistance = distance;\n    }\n  }\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E8%8E%B7%E5%8F%96%E6%91%87%E6%9D%86%E8%BE%93%E5%85%A5\"><\/span>\u83b7\u53d6\u6447\u6746\u8f93\u5165<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u5176\u5b9e\uff0c\u7528\u6237\u53ef\u4ee5\u76f4\u63a5\u8bbf\u95ee\u6447\u6746\u63a7\u5236\u7ed3\u6784\u4f53\u83b7\u53d6\u5f53\u524d\u89d2\u5ea6\u3001\u8ddd\u79bb\u4ee5\u53ca\u662f\u5426\u88ab\u6309\u4e0b\u7b49\u4fe1\u606f\uff1b\u4f46\u662f\u4e3a\u4e86\u89c4\u8303\u6027\uff0c\u5728\u8fd9\u91cc\u8fd8\u662f\u63d0\u4f9b\u4e86\u4e00\u4e2a API \u51fd\u6570\uff0c\u4e13\u95e8\u7528\u4e8e\u83b7\u53d6\u6447\u6746\u8f93\u5165\uff0c\u5177\u4f53\u5982\u4e0b\u6240\u793a\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">\/*********************************************************************************************************\n* \u51fd\u6570\u540d\u79f0\uff1a GetRockResult\n* \u51fd\u6570\u529f\u80fd\uff1a \u83b7\u53d6\u6447\u6746\u68c0\u6d4b\u7ed3\u679c\n* \u8f93\u5165\u53c2\u6570\uff1a widget: \u63a7\u4ef6\u9996\u5730\u5740\n*            angle\uff1a\u7528\u4e8e\u8f93\u51fa\u5f53\u524d\u89d2\u5ea6\uff0c\u89d2\u5ea6\u5236\uff0c\u4ee5\u5782\u76f4\u5411\u4e0a\u4e3a\u96f6\uff0c\u987a\u65f6\u9488\u65b9\u5411\u4e3a\u6b63\u65b9\u5411\n*            distance\uff1a\u624b\u6307\u4e0e\u63a7\u4ef6\u4e2d\u5fc3\u7684\u8ddd\u79bb\n* \u8f93\u51fa\u53c2\u6570\uff1a void\n* \u8fd4 \u56de \u503c\uff1a 0-\u672a\u68c0\u6d4b\u5230\u8f93\u5165\uff0c\u5176\u5b83-\u68c0\u6d4b\u5230\u8f93\u5165\n* \u521b\u5efa\u65e5\u671f\uff1a 2023\u5e7403\u670821\u65e5\n* \u6ce8    \u610f\uff1a \u53ea\u80fd\u7528\u4e8e RGB565\n*********************************************************************************************************\/\nint GetRockResult(StructRockerDev* widget, unsigned int* angle, unsigned int* distance)\n{\n  *angle = widget-&gt;curAngle;\n  *distance = widget-&gt;curDistance;\n  return widget-&gt;isPress;\n}\n<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%B5%8B%E8%AF%95%E4%BB%A3%E7%A0%81\"><\/span>\u6d4b\u8bd5\u4ee3\u7801<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u6d4b\u8bd5\u4ee3\u7801\u5982\u4e0b\u6240\u793a\uff0c\u4e3a\u4e86\u65b9\u4fbf\u663e\u793a\u7ed3\u679c\uff0c\u8fd9\u91cc\u4f7f\u7528\u4e86\u4e24\u4e2a Text \u63a7\u4ef6\uff0c\u5206\u522b\u7528\u4e8e\u663e\u793a\u5f53\u524d\u89d2\u5ea6\u503c\u548c\u8ddd\u79bb\u503c\u3002\u89d2\u5ea6\u503c\u8303\u56f4\u662f 0~359\uff0c\u4e3a\u89d2\u5ea6\u5236\uff0c\u4ee5\u5782\u76f4\u4e0a\u5347\u4e3a\u96f6\u5ea6\uff0c\u987a\u65f6\u9488\u4e3a\u6b63\u65b9\u5411\uff1b\u8ddd\u79bb\u503c\u5219\u662f\u5f53\u524d\u89e6\u70b9\u5750\u6807\u4e0e\u6447\u6746\u63a7\u4ef6\u4e2d\u5fc3\u7684\u8ddd\u79bb\u503c\uff0c\u4ee5\u50cf\u7d20\u70b9\u4e3a\u5355\u4f4d\u3002<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code lang=\"c\" class=\"language-c\">#include &lt;stdio.h&gt;\n#include \".\/LCD\/LCD.h\"\n#include \".\/Picture\/BMP.h\"\n#include &lt;windows.h&gt;\n#include \"Rocker.h\"\n#include \"Text.h\"\n\nint main(void)\n{\n  \/\/\u76f8\u5173\u53d8\u91cf\n  static StructRockerDev s_structRocker;\n  static StructText s_structText1;\n  static StructText s_structText2;\n  static char s_arrStringBuf[64];\n  unsigned int angle, distance;\n\n  \/\/\u521d\u59cb\u5316\n  InitLCD();\n  InitBMP();\n\n  \/\/\u663e\u793a\u80cc\u666f\n  extern const unsigned char g_arrBmpBgImage800x480[768068];\n  DrawBMP(g_arrBmpBgImage800x480, 0, 0);\n\n  \/\/\u521b\u5efa\u6447\u6746\u63a7\u4ef6\n  s_structRocker.x = 400;\n  s_structRocker.y = 240;\n  s_structRocker.rBg = 100;\n  s_structRocker.rButton = 25;\n  s_structRocker.bgColor = LCD_COLOR_BLACK;\n  s_structRocker.buttonColor = LCD_COLOR_YELLOW;\n  s_structRocker.bgAlpha = 75;\n  s_structRocker.buttonAlpha = 200;\n  CreateRocker(&amp;s_structRocker);\n\n  \/\/\u521b\u5efa Text1\n  s_structText1.x = 10;\n  s_structText1.y = 10;\n  s_structText1.width = 12 * 20;\n  s_structText1.size = 24;\n  s_structText1.height = s_structText1.size;\n  TextInit(&amp;s_structText1);\n\n  \/\/\u521b\u5efa Text2\n  s_structText2.x = 10;\n  s_structText2.y = 40;\n  s_structText2.width = 12 * 20;\n  s_structText2.size = 24;\n  s_structText2.height = s_structText2.size;\n  TextInit(&amp;s_structText2);\n  \n  \/\/\u901f\u5ea6\u4eea\u8868\u76d8\u663e\u793a\n  while (1)\n  {\n    \/\/\u6447\u6746\u8f6e\u8be2\n    RockerPoll(&amp;s_structRocker);\n\n    \/\/\u83b7\u53d6\u6447\u6746\u8f93\u5165\n    if (0 != GetRockResult(&amp;s_structRocker, &amp;angle, &amp;distance))\n    {\n      \/\/\u8bbe\u7f6e\u753b\u7b14\u989c\u8272\n      g_iLCDPointColor = LCD_COLOR_WHITE;\n\n      \/\/\u663e\u793a\u89d2\u5ea6\n      sprintf(s_arrStringBuf, \"Angle: %d\", angle);\n      TextShow(&amp;s_structText1, s_arrStringBuf);\n\n      \/\/\u663e\u793a\u8ddd\u79bb\n      sprintf(s_arrStringBuf, \"Distance: %d\", distance);\n      TextShow(&amp;s_structText2, s_arrStringBuf);\n    }\n    else\n    {\n      \/\/\u8bbe\u7f6e\u753b\u7b14\u989c\u8272\n      g_iLCDPointColor = LCD_COLOR_WHITE;\n\n      \/\/\u663e\u793a\u89d2\u5ea6\n      sprintf(s_arrStringBuf, \"Angle: --\");\n      TextShow(&amp;s_structText1, s_arrStringBuf);\n\n      \/\/\u663e\u793a\u8ddd\u79bb\n      sprintf(s_arrStringBuf, \"Distance: --\");\n      TextShow(&amp;s_structText2, s_arrStringBuf);\n    }\n\n    \/\/\u5ef6\u65f6 25ms\n    Sleep(25);\n  }\n  \n  return 0;\n}<\/code><\/pre>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%E6%BA%90%E7%A0%81\"><\/span>\u6e90\u7801<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p>\u672c\u7ae0\u8282\u4e2d\u7684\u6e90\u7801\u8bf7\u53c2\u8003\u300a<em><a href=\"http:\/\/www.huangrongzhen.ink\/?p=451\">\u5355\u7247\u673a GUI \u8bbe\u8ba1\uff08\u96f6\uff09- \u5927\u7eb2<\/a><\/em>\u300b<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8e GD32F303ZET6 \u82f9\u679c\u6d3e\u5f00\u53d1\u677f<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[13],"tags":[],"_links":{"self":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/1303"}],"collection":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1303"}],"version-history":[{"count":20,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/1303\/revisions"}],"predecessor-version":[{"id":1326,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=\/wp\/v2\/posts\/1303\/revisions\/1326"}],"wp:attachment":[{"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1303"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1303"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.huangrongzhen.ink\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1303"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}