{"id":131,"date":"2015-06-10T16:23:59","date_gmt":"2015-06-10T16:23:59","guid":{"rendered":""},"modified":"2015-06-10T16:23:59","modified_gmt":"2015-06-10T16:23:59","slug":"","status":"publish","type":"post","link":"http:\/\/weizn.net\/?p=131","title":{"rendered":"[\u8f6c]Qt \u4e2dQTreewidget\u6dfb\u52a0\u53f3\u952e\u83dc\u5355"},"content":{"rendered":"

\n\t\u5728Qt+VS2005\u4e0b\uff0c\u4f7f\u7528slot\u51fd\u6570customContextMenuRequested<\/span>(<\/span>QPoint<\/span>pos<\/span>)\u5b9e\u73b0Treewidget\u7684\u53f3\u952e\u83dc\u5355\u680f\u3002<\/span>\n<\/p>\n

\n\t1\u3001\u5728ui\u7f16\u8f91\u754c\u9762\u4e2d\uff0c\u53f3\u51fbQTreeWidget–> Connect Signal–>\u9009\u62e9customContextMenuRequested(QPoint)\uff0c\u6dfb\u52a0slot\u51fd\u6570\u3002\n<\/p>\n

\n\t\u3000\u3000\u5728\u5c5e\u6027\u8bbe\u7f6e\u4e2d\uff0c\u5c06contextMenuPolicy\u5c5e\u6027\u8981\u8bbe\u7f6e\u4e3a\uff1aCustomContextMenu<\/span>\uff0c\u8fd9\u6b65\u4e0d\u80fd\u5fd8\u8bb0\uff0c\u5426\u5219\u53f3\u952e\u65e0\u53cd\u5e94\u3002<\/span>\n<\/p>\n

\n\t2\u3001\u4e3aTreewidget\u6dfb\u52a0\u8282\u70b9\uff0c\u901a\u8fc7setData()\u6765\u4e3a\u6bcf\u4e2a\u8282\u70b9\u8d4b\u4e88\u4e0d\u540c\u7684\u952e\u503c\u3002<\/span>\n<\/p>\n

\n
QTreeWidgetItem *root;    \r\nroot = new QTreeWidgetItem(ui->treeWidget, QStringList(QString(\"Connection\")));\r\nQVariant var0(0);\r\nroot->setData(0,Qt::UserRole,var0);<\/pre>\n<\/div>\n
\n\t3\u3001\u5728slot\u51fd\u6570\u4e2d\u4f7f\u7528itemAt()\u51fd\u6570\u83b7\u53d6\u5f53\u524d\u88ab\u70b9\u51fb\u7684\u8282\u70b9\uff0c\u7136\u540e<\/span>\u4e3a\u4e0d\u540c\u7684\u8282\u70b9\u6dfb\u52a0\u4e0d\u540c\u7684\u83dc\u5355\u3002\n<\/p>\n
\n
\n\t\t \n\t<\/div>\n
void<\/span> MainWindow::on_treeWidget_customContextMenuRequested(QPoint pos)\r\n{\r\n    QTreeWidgetItem<\/span>* curItem=ui->treeWidget->itemAt(pos); \/\/<\/span>\u83b7\u53d6\u5f53\u524d\u88ab\u70b9\u51fb\u7684\u8282\u70b9<\/span> if<\/span>(curItem==NULL)return<\/span>; \/\/<\/span>\u8fd9\u79cd\u60c5\u51b5\u662f\u53f3\u952e\u7684\u4f4d\u7f6e\u4e0d\u5728treeItem\u7684\u8303\u56f4\u5185\uff0c\u5373\u5728\u7a7a\u767d\u4f4d\u7f6e\u53f3\u51fb<\/span> QVariant var<\/span> = curItem->data(0<\/span>,Qt::UserRole); <\/span>if<\/span>(0<\/span> == var<\/span>) \/\/<\/span>data(...)\u8fd4\u56de\u7684data\u5df2\u7ecf\u5728\u4e4b\u524d\u5efa\u7acb\u8282\u70b9\u65f6\u7528setdata()\u8bbe\u7f6e\u597d <\/span>  {\r\n       QMenu <\/span>*popMenu =new<\/span> QMenu(this<\/span>);\/\/<\/span>\u5b9a\u4e49\u4e00\u4e2a\u53f3\u952e\u5f39\u51fa\u83dc\u5355<\/span>  popMenu<\/span>->addAction(ui->action_newDB);\/\/<\/span>\u5f80\u83dc\u5355\u5185\u6dfb\u52a0QAction   \u8be5action\u5728\u524d\u9762\u7528\u8bbe\u8ba1\u5668\u5b9a\u4e49\u4e86<\/span> popMenu->addAction(ui->action_openDB);\r\n       popMenu<\/span>->addAction(ui->action_delDB);\r\n       popMenu<\/span>->exec(QCursor::pos());\/\/<\/span>\u5f39\u51fa\u53f3\u952e\u83dc\u5355\uff0c\u83dc\u5355\u4f4d\u7f6e\u4e3a\u5149\u6807\u4f4d\u7f6e<\/span>  } <\/span>else<\/span> {\r\n        QMenu <\/span>*popMenu =new<\/span> QMenu(this<\/span>);\/\/<\/span>\u5b9a\u4e49\u4e00\u4e2a\u53f3\u952e\u5f39\u51fa\u83dc\u5355<\/span>  popMenu<\/span>->addAction(ui->action_newTable);\/\/<\/span>\u5f80\u83dc\u5355\u5185\u6dfb\u52a0QAction   \u8be5action\u5728\u524d\u9762\u7528\u8bbe\u8ba1\u5668\u5b9a\u4e49\u4e86<\/span> popMenu->addAction(ui->action_openTable);\r\n        popMenu<\/span>->addAction(ui->action_designTable);\r\n        popMenu<\/span>->exec(QCursor::pos());\/\/<\/span>\u5f39\u51fa\u53f3\u952e\u83dc\u5355\uff0c\u83dc\u5355\u4f4d\u7f6e\u4e3a\u5149\u6807\u4f4d\u7f6e<\/span>  }\r\n}<\/span><\/pre>\n<\/div>\n
\n\t \n<\/p>\n
\n\t\u53c2\u8003\uff1ahttp:\/\/blog.csdn.net\/moxiaomomo\/article\/details\/6542683<\/p>\n","protected":false},"excerpt":{"rendered":"
\n\t\u5728Qt+VS2005\u4e0b\uff0c\u4f7f\u7528slot\u51fd\u6570customContextMenuRequested<\/span>(<\/span>QPoint<\/span>pos<\/span>)\u5b9e\u73b0Treewidget\u7684\u53f3\u952e\u83dc\u5355\u680f\u3002<\/span>\n<\/p>\n
\n\t1\u3001\u5728ui\u7f16\u8f91\u754c\u9762\u4e2d\uff0c\u53f3\u51fbQTreeWidget–> Connect Signal–>\u9009\u62e9customContextMenuRequested(QPoint)\uff0c\u6dfb\u52a0slot\u51fd\u6570\u3002\n<\/p>\n
\n\t\u3000\u3000\u5728\u5c5e\u6027\u8bbe\u7f6e\u4e2d\uff0c\u5c06contextMe…<\/span><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[331],"tags":[],"class_list":["post-131","post","type-post","status-publish","format-standard","hentry"],"yoast_head":"\n[\u8f6c]Qt \u4e2dQTreewidget\u6dfb\u52a0\u53f3\u952e\u83dc\u5355 - Wayne's Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"http:\/\/weizn.net\/?p=131\" \/>\n<meta property=\"og:locale\" content=\"zh_CN\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[\u8f6c]Qt \u4e2dQTreewidget\u6dfb\u52a0\u53f3\u952e\u83dc\u5355 - Wayne's Blog\" \/>\n<meta property=\"og:description\" content=\"\u5728Qt+VS2005\u4e0b\uff0c\u4f7f\u7528slot\u51fd\u6570customContextMenuRequested(QPointpos)\u5b9e\u73b0Treewidget\u7684\u53f3\u952e\u83dc\u5355\u680f\u3002    1\u3001\u5728ui\u7f16\u8f91\u754c\u9762\u4e2d\uff0c\u53f3\u51fbQTreeWidget--> Connect Signal-->\u9009\u62e9customContextMenuRequested(QPoint)\uff0c\u6dfb\u52a0slot\u51fd\u6570\u3002    \u3000\u3000\u5728\u5c5e\u6027\u8bbe\u7f6e\u4e2d\uff0c\u5c06contextMe...\" \/>\n<meta property=\"og:url\" content=\"http:\/\/weizn.net\/?p=131\" \/>\n<meta property=\"og:site_name\" content=\"Wayne's Blog\" \/>\n<meta property=\"article:published_time\" content=\"2015-06-10T16:23:59+00:00\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"zinan\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"http:\/\/weizn.net\/#website\",\"url\":\"http:\/\/weizn.net\/\",\"name\":\"Wayne's Blog\",\"description\":\"\",\"publisher\":{\"@id\":\"http:\/\/weizn.net\/#\/schema\/person\/e88bc12c590502d8b6249326f960b264\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"http:\/\/weizn.net\/?s={search_term_string}\"},\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"zh-Hans\"},{\"@type\":\"WebPage\",\"@id\":\"http:\/\/weizn.net\/?p=131#webpage\",\"url\":\"http:\/\/weizn.net\/?p=131\",\"name\":\"[\\u8f6c]Qt \\u4e2dQTreewidget\\u6dfb\\u52a0\\u53f3\\u952e\\u83dc\\u5355 - 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