QT实现自定义侧边导航栏

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资源文件列表:

QNavigationWidget.zip 大约有15个文件

QNavigationWidget/
QNavigationWidget/main.cpp 177B
QNavigationWidget/mainwindow.cpp 1.33KB
QNavigationWidget/mainwindow.h 206B
QNavigationWidget/qnavigationwidget.cpp 2.85KB
QNavigationWidget/qnavigationwidget.h 969B
QNavigationWidget/QNavigationWidget.pro 676B
QNavigationWidget/res/
QNavigationWidget/res/contents.png 6.27KB
QNavigationWidget/res/editclear.png 4.42KB
QNavigationWidget/res/editcopy.png 2.9KB
QNavigationWidget/res/filenew.png 1.94KB
QNavigationWidget/res/fileopen.png 3.08KB
QNavigationWidget/res/filesave.png 3.12KB
QNavigationWidget/ui.qrc 273B

资源介绍:

侧边导航栏是应用程序界面的一种常见布局，它通常位于页面或应用程序的侧边位置，用来展示导航菜单或功能链接，方便用户快速访问不同的页面或功能。本示例展示了在QT中，通过自定义QWidget来实现自定义的侧边导航栏。你可以根据需要修改样式、添加图标等来达到你想要的效果。

#include "qnavigationwidget.h" #include #include QNavigationWidget::QNavigationWidget(QWidget *parent) : QWidget(parent) { backgroundColor = "#E4E4E4"; selectedColor = "#2CA7F8"; mouseInColor = "#C4C4C4"; rowHeight = 40; currentIndex = 0; mouseMoveIndex = -1; setMouseTracking(true); setFixedWidth(120); } QNavigationWidget::~QNavigationWidget() { } void QNavigationWidget::addItem(const QString &iconPath,const QString &title) { listIcons << iconPath; listItems << title; update(); } void QNavigationWidget::setWidth(const int &width) { setFixedWidth(width); } void QNavigationWidget::setBackgroundColor(const QColor &color) { backgroundColor = color; update(); } void QNavigationWidget::setSelectColor(const QColor &color) { selectedColor = color; update(); } void QNavigationWidget::setMouseInColor(const QColor &color) { mouseInColor = color; update(); } void QNavigationWidget::setRowHeight(const int &height) { rowHeight = height; update(); } void QNavigationWidget::paintEvent(QPaintEvent *) { QPainter painter(this); painter.setRenderHint(QPainter::Antialiasing, true); // Draw background color. painter.setPen(Qt::NoPen); painter.setBrush(backgroundColor); painter.drawRect(rect()); // Draw Items int count = 0; for (const QString &str : listItems) { QPainterPath itemPath; itemPath.addRect(QRect(0, count * rowHeight, width(), rowHeight)); if (currentIndex == count) { painter.setPen("#FFFFFF"); painter.fillPath(itemPath, selectedColor); } else if(mouseMoveIndex == count) { painter.setPen("#FFFFFF"); painter.fillPath(itemPath, mouseInColor); } else { painter.setPen("#202020"); painter.fillPath(itemPath, backgroundColor); } //painter.drawText(QRect(40, count * rowHeight, width()-40, rowHeight), Qt::AlignVCenter | Qt::AlignHCenter, str); painter.drawPixmap(QRect(20, (count * rowHeight+(rowHeight-20)/2), 20, 20),QPixmap(listIcons[count])); painter.drawText(QRect(45, count * rowHeight, width()-40, rowHeight), Qt::AlignVCenter, str); ++count; } } void QNavigationWidget::mouseMoveEvent(QMouseEvent *e) { if (e->y() / rowHeight < listItems.count()) { mouseMoveIndex = e->y() / rowHeight; } else { mouseMoveIndex = -1; } update(); } void QNavigationWidget::mousePressEvent(QMouseEvent *e) { if (e->y() / rowHeight < listItems.count()) { currentIndex = e->y() / rowHeight; emit currentItemChanged(currentIndex); update(); } } void QNavigationWidget::leaveEvent(QEvent *) { if(mouseMoveIndex !=-1 ) { mouseMoveIndex = -1; update(); } }

QT实现自定义侧边导航栏

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资源介绍:

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