文章目录
- 一、QTabWidget基本用法
- 二、QListWidget应用详解
- 1.列表模式
- 1.1 基本操作
- 1.2 添加自定义item
- 1.3 如何添加右键菜单
- 1.4 QListWidget如何删除item
- 2.图标模式
- 三、QScrollArea应用详解
一、QTabWidget基本用法
QTabWidget
是 Qt 框架中的一个类,它提供了一个选项卡式的界面,允许用户通过点击不同的标签页来切换不同的内容区域。它是 Qt Widgets 模块的一部分,通常用于创建具有多个页面的应用程序界面。
-
创建QTabWidget
#include <QTabWidget>QTabWidget *pTabWidget = new QTabWidget(this);
-
相关方法
-
添加自定义tab(标签页)
int insertTab(int index, QWidget *page, const QString &label); int insertTab(int index, QWidget *page, const QIcon &icon, const QString &label);
-
tab设置
pTabWidget->setTabPosition(QTabWidget::West); //设置tab的位置 pTabWidget->setTabShape(QTabWidget::Triangular); //梯形tab pTabWidget->setTabsClosable(true); //显示关闭按钮 pTabWidget->setMovable(true); //tab可移动
-
四个信号
-
void currentChanged(int index);
这个信号在当前显示的标签页改变时发出。参数
index
表示新选中的标签页的索引。你可以连接这个信号到一个槽函数,以便在用户切换标签页时执行某些操作。 -
void tabCloseRequested(int index);
当用户请求关闭一个标签页时(例如,如果启用了可关闭的标签页),这个信号会被发出。参数
index
表示请求关闭的标签页的索引。你可以连接这个信号到一个槽函数,以处理标签页关闭的逻辑,比如确认关闭操作或保存数据。 -
void tabBarClicked(int index);
当用户点击标签栏中的标签时,这个信号会被发出。参数
index
表示被点击的标签页的索引。这个信号可以用来执行一些动作,比如更新标签页的显示内容或状态。 -
void tabBarDoubleClicked(int index);
当用户双击标签栏中的标签时,这个信号会被发出。参数
index
表示被双击的标签页的索引。这个信号可以用于执行更复杂的操作,比如直接关闭标签页或触发特定的应用程序功能。
-
-
关闭tab
//当用户请求关闭一个标签页时,将指定标签页关闭 connect(pTabWidget, &QTabWidget::tabCloseRequested, [=](int index){pTabWidget->removeTab(index); });
-
-
tab样式表
/* 把显示界面向上移动 */ QTabWidget::pane {border-top:1px solid #EAEAEA;position:absolute;top:-0.1px;background-color:black; }QTabBar::tab {width:100px;height:50px;font-size:16px;font-family:Microsoft YaHei;font-weight:400;background:#FFFFFF;border:2px solid #FFFFFF;border-bottom-color:#FFFFFF;border-top-left-radius:4px;border-top-right-radius:4px;padding:2px; }QTabBar::tab:selected {color:#333333;border-color:#FFFFFF;border-bottom-color:#4BA4F2; } QTabBar::tab:!selected {color:#B2B2B2;border-color:#FFFFFF;border-bottom-color:#FFFFFF; }
QTabBar
是 Qt 框架中的一个类,它提供了一个用于QTabWidget
的标签条(Tab Bar)。QTabBar
允许用户通过点击不同的标签来切换QTabWidget
中的不同标签页。将样式表设置如上,可实现如下效果:
示例:
widget.h:
#ifndef WIDGET_H
#define WIDGET_H#include <QWidget>class Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = nullptr);~Widget();
};
#endif // WIDGET_H
widget.cpp:
#include "widget.h"
#include <QHBoxLayout>
#include <QTabWidget>Widget::Widget(QWidget *parent): QWidget(parent)
{this->resize(QSize(800, 400));QHBoxLayout *pHLay = new QHBoxLayout(this);QTabWidget *pTabWidget = new QTabWidget(this);pTabWidget->setTabPosition(QTabWidget::West); //设置tab的位置pTabWidget->setTabShape(QTabWidget::Triangular); //梯形tabpTabWidget->setTabsClosable(true); //显示关闭按钮pTabWidget->setMovable(true); //tab可移动QWidget *w1 = new QWidget();w1->setStyleSheet("background-color:rgb(54, 54, 54)");QWidget *w2 = new QWidget();w2->setStyleSheet("background-color:rgb(154, 154, 54)");QWidget *w3 = new QWidget();w3->setStyleSheet("background-color:rgb(54, 54, 154)");pTabWidget->insertTab(0, w1, "tab1");pTabWidget->insertTab(1, w2, "tab2");pTabWidget->insertTab(2, w3, "tab3");pHLay->addWidget(pTabWidget);//当用户请求关闭一个标签页时,将指定标签页关闭connect(pTabWidget, &QTabWidget::tabCloseRequested, [=](int index){pTabWidget->removeTab(index);});
}Widget::~Widget() {}
main.cpp:
#include "widget.h"
#include <QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);Widget w;w.show();return a.exec();
}
二、QListWidget应用详解
QListWidget
是 Qt 框架中的一个类,它提供了一个列表框,允许用户以列表的形式展示项目,并允许用户通过点击或双击来选择项目。QListWidget
继承自 QListView
,并且是 QWidget
的子类。QListWidget
有两种显示模式:列表模式与图标模式。默认是列表模式。
enum ViewMode
{ListMode, //列表模式IconMode //图标模式
}
1.列表模式
1.1 基本操作
-
创建QListWidget
QListWidget* pListWidget = new QListWidget(this);
-
创建item
QListWidgetItem* pLwItem1 = new QListWidgetItem(QIcon(":/resources/kits.png"), "构建套件");
-
添加item
pListWidget->addItem(pLwItem1);
-
返回列表控件中指定坐标的列表项
QListWidgetItem* pItem = pListWidget->itemAt(pos);
它的作用是返回在列表控件(
QListWidget
)中,指定坐标p
处的列表项(QListWidgetItem
)的指针。 -
返回当前的列表项
QListWidgetItem* item = pListWidget->currentItem();
-
删除列表项
pListWidget->removeItemWidget(item);
-
添加多个列表项
QStringList m_textList; m_textList << u8"基本设置" << u8"云盘设置" << u8"下载设置" << u8"接管设置" << u8"任务管理" << u8"提醒" << u8"悬浮窗" << u8"高级设置"; m_pListWidget->addItems(m_textList);
示例:
widget.h:
#pragma once#include <QtWidgets/QWidget>
#include <QVBoxLayout>
#include <QLineEdit>
#include <QListWidget>
#include <QTabWidget>
#include <QLabel>
#include <QPushButton>class widget : public QWidget
{Q_OBJECTpublic:widget(QWidget* parent = nullptr);~widget();private:QVBoxLayout* pMainVLayout;QVBoxLayout* pLeftVLayout;QVBoxLayout* pRightVLayout;QHBoxLayout* pTopHLayout;QHBoxLayout* pBottomHLayout;QWidget* pLeftWidget;QWidget* pRightWidget;QWidget* pBottomWidget;QListWidget* pListWidget;QTabWidget* pTabWidget;QLineEdit* pSelectEdit;QLabel* pLabel;QPushButton* pOKBtn;QPushButton* pCancelBtn;QPushButton* pApplyBtn;
};
widget.cpp:
#pragma execution_character_set("utf-8")
#include "widget.h"widget::widget(QWidget *parent): QWidget(parent)
{this->resize(QSize(800, 500));//整体pMainVLayout = new QVBoxLayout(this);pTopHLayout = new QHBoxLayout;/** 左侧 **/pLeftWidget = new QWidget;pLeftVLayout = new QVBoxLayout(pLeftWidget);pSelectEdit = new QLineEdit;pSelectEdit->setObjectName(QString::fromUtf8("pSelectEdit"));pSelectEdit->setFixedWidth(300);pListWidget = new QListWidget;pListWidget->setObjectName(QString::fromUtf8("pListWidget"));pListWidget->setFixedWidth(300); //设置固定宽度//创建itemQListWidgetItem* pLwItem1 = new QListWidgetItem(QIcon(":/resources/kits.png"), "构建套件");QListWidgetItem* pLwItem2 = new QListWidgetItem(QIcon(":/resources/env.png"), "环境");QListWidgetItem* pLwItem3 = new QListWidgetItem(QIcon(":/resources/editor.png"), "编辑");QListWidgetItem* pLwItem4 = new QListWidgetItem(QIcon(":/resources/vim.png"), "FakeVim");QListWidgetItem* pLwItem5 = new QListWidgetItem(QIcon(":/resources/help.png"), "帮助");//添加itempListWidget->addItem(pLwItem1);pListWidget->addItem(pLwItem2);pListWidget->addItem(pLwItem3);pListWidget->addItem(pLwItem4);pListWidget->addItem(pLwItem5);//添加到左侧布局中pLeftVLayout->addWidget(pSelectEdit);pLeftVLayout->addWidget(pListWidget);/** 右侧 **/pRightWidget = new QWidget;pRightWidget->setFixedWidth(500);pRightVLayout = new QVBoxLayout(pRightWidget);pLabel = new QLabel;pLabel->setObjectName(QString::fromUtf8("pLabel"));pLabel->setAlignment(Qt::AlignLeft);pLabel->setText("文本编辑器");pTabWidget = new QTabWidget;QWidget* w1 = new QWidget;QWidget* w2 = new QWidget;QWidget* w3 = new QWidget;//添加标签页pTabWidget->insertTab(0, w1, "构建套件");pTabWidget->insertTab(1, w2, "Qt版本");pTabWidget->insertTab(2, w3, "编译器");//添加到右侧布局中pRightVLayout->addWidget(pLabel);pRightVLayout->addWidget(pTabWidget);//添加到顶部布局中pTopHLayout->addWidget(pLeftWidget);pTopHLayout->addWidget(pRightWidget);/*底部*/pBottomWidget = new QWidget;pBottomHLayout = new QHBoxLayout(pBottomWidget);pBottomHLayout->addSpacing(500);pOKBtn = new QPushButton;pOKBtn->setObjectName(QString::fromUtf8("pOKBtn"));pOKBtn->setFixedHeight(40);pOKBtn->setText("确定");pCancelBtn = new QPushButton;pCancelBtn->setObjectName(QString::fromUtf8("pCancelBtn"));pCancelBtn->setFixedHeight(40);pCancelBtn->setText("取消");pApplyBtn = new QPushButton;pApplyBtn->setObjectName(QString::fromUtf8("pApplyBtn"));pApplyBtn->setFixedHeight(40);pApplyBtn->setText("应用");//添加到底部布局中pBottomHLayout->addWidget(pOKBtn);pBottomHLayout->addWidget(pCancelBtn);pBottomHLayout->addWidget(pApplyBtn);pBottomHLayout->setSpacing(10);//添加到整体布局中pMainVLayout->addLayout(pTopHLayout);pMainVLayout->addWidget(pBottomWidget);
}widget::~widget() {}
main.cpp:
#include "loginInCode.h"
#include <QtWidgets/QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);loginInCode w;w.show();return a.exec();
}
运行结果:
结构上类似于Qt的首选项
1.2 添加自定义item
-
新建自定义的widget类,
-
将自定义的Item添加到列表
QListWidgetItem* pLwItem6 = new QListWidgetItem; pListWidget->addItem(pLwItem6); pLwItem6->setSizeHint(QSize(200, 80));CUserItem* pUserItem = new CUserItem; pListWidget->setItemWidget(pLwItem6, pUserItem);
1.3 如何添加右键菜单
-
设置菜单策略(必须设置,不然无法显示菜单)
pListWidget->setContextMenuPolicy(Qt::CustomContextMenu);
-
连接信号槽
//QWidget的信号:void customContextMenuRequested(const QPoint &pos); connect(pListWidget, &QListWidget::customContextMenuRequested, this, &Widget::on_PopupRightMenu);
1.4 QListWidget如何删除item
QListWidget有两种删除方式:
-
方式一:知道item的名字,根据名字删除–动态删除
这种可用于用户掉线,信息丢失等情况
QList<QListWidgetItem*> list; list = pListWidget->findItems("Kits", Qt::MatchCaseSensitive);QListWidgetItem* sel = list[0]; int r = pListWidget->row(sel);//作用是从列表控件中移除并返回指定行的列表项。如果指定行没有列表项,则返回nullptr。 QListWidgetItem* item = pListWidget->takeItem(r); pListWidget->removeItemWidget(item);delete item;
-
方式二:右键点击删除,或者选中删除
QListWidgetItem* item = pListWidget->currentItem(); pListWidget->removeItemWidget(item); delete item;
示例:上面两小节
widget.h:
#pragma once#include <QtWidgets/QWidget>
#include <QVBoxLayout>
#include <QLineEdit>
#include <QListWidget>
#include <QTabWidget>
#include <QLabel>
#include <QPushButton>
#include <QMenu>
#include <QAction>
#include <QMessageBox>class widget : public QWidget
{Q_OBJECTpublic:widget(QWidget* parent = nullptr);~widget();private:QVBoxLayout* pMainVLayout;QVBoxLayout* pLeftVLayout;QVBoxLayout* pRightVLayout;QHBoxLayout* pTopHLayout;QHBoxLayout* pBottomHLayout;QWidget* pLeftWidget;QWidget* pRightWidget;QWidget* pBottomWidget;QListWidget* pListWidget;QTabWidget* pTabWidget;QLineEdit* pSelectEdit;QLabel* pLabel;QPushButton* pOKBtn;QPushButton* pCancelBtn;QPushButton* pApplyBtn;QMenu* m_pRightMenu;private:void initRightMenu();private slots:void on_PopupRightMenu(const QPoint& pos);
};
widget.cpp:
#pragma execution_character_set("utf-8")
#include "widget.h"widget::widget(QWidget *parent): QWidget(parent)
{this->setWindowTitle("首选项-Qt Creator");this->resize(QSize(800, 500));//整体pMainVLayout = new QVBoxLayout(this);pTopHLayout = new QHBoxLayout;/** 左侧 **/pLeftWidget = new QWidget;pLeftVLayout = new QVBoxLayout(pLeftWidget);pSelectEdit = new QLineEdit;pSelectEdit->setObjectName(QString::fromUtf8("pSelectEdit"));pSelectEdit->setFixedWidth(300);pListWidget = new QListWidget;pListWidget->setObjectName(QString::fromUtf8("pListWidget"));pListWidget->setFixedWidth(300); //设置固定宽度pListWidget->setContextMenuPolicy(Qt::CustomContextMenu);//创建itemQListWidgetItem* pLwItem1 = new QListWidgetItem(QIcon(":/resources/kits.png"), "构建套件");QListWidgetItem* pLwItem2 = new QListWidgetItem(QIcon(":/resources/env.png"), "环境");QListWidgetItem* pLwItem3 = new QListWidgetItem(QIcon(":/resources/editor.png"), "编辑");QListWidgetItem* pLwItem4 = new QListWidgetItem(QIcon(":/resources/vim.png"), "FakeVim");QListWidgetItem* pLwItem5 = new QListWidgetItem(QIcon(":/resources/help.png"), "帮助");//添加itempListWidget->addItem(pLwItem1);pListWidget->addItem(pLwItem2);pListWidget->addItem(pLwItem3);pListWidget->addItem(pLwItem4);pListWidget->addItem(pLwItem5);//添加到左侧布局中pLeftVLayout->addWidget(pSelectEdit);pLeftVLayout->addWidget(pListWidget);/** 右侧 **/pRightWidget = new QWidget;pRightWidget->setFixedWidth(500);pRightVLayout = new QVBoxLayout(pRightWidget);pLabel = new QLabel;pLabel->setObjectName(QString::fromUtf8("pLabel"));pLabel->setAlignment(Qt::AlignLeft);pLabel->setText("文本编辑器");pTabWidget = new QTabWidget;QWidget* w1 = new QWidget;QWidget* w2 = new QWidget;QWidget* w3 = new QWidget;//添加标签页pTabWidget->insertTab(0, w1, "构建套件");pTabWidget->insertTab(1, w2, "Qt版本");pTabWidget->insertTab(2, w3, "编译器");//添加到右侧布局中pRightVLayout->addWidget(pLabel);pRightVLayout->addWidget(pTabWidget);//添加到顶部布局中pTopHLayout->addWidget(pLeftWidget);pTopHLayout->addWidget(pRightWidget);/*底部*/pBottomWidget = new QWidget;pBottomHLayout = new QHBoxLayout(pBottomWidget);pBottomHLayout->addSpacing(500);pOKBtn = new QPushButton;pOKBtn->setObjectName(QString::fromUtf8("pOKBtn"));pOKBtn->setFixedHeight(40);pOKBtn->setText("确定");pCancelBtn = new QPushButton;pCancelBtn->setObjectName(QString::fromUtf8("pCancelBtn"));pCancelBtn->setFixedHeight(40);pCancelBtn->setText("取消");pApplyBtn = new QPushButton;pApplyBtn->setObjectName(QString::fromUtf8("pApplyBtn"));pApplyBtn->setFixedHeight(40);pApplyBtn->setText("应用");//添加到底部布局中pBottomHLayout->addWidget(pOKBtn);pBottomHLayout->addWidget(pCancelBtn);pBottomHLayout->addWidget(pApplyBtn);pBottomHLayout->setSpacing(10);//添加到整体布局中pMainVLayout->addLayout(pTopHLayout);pMainVLayout->addWidget(pBottomWidget);initRightMenu();connect(pListWidget, &QListWidget::customContextMenuRequested, this, &widget::on_PopupRightMenu);
}widget::~widget() {}void widget::initRightMenu()
{m_pRightMenu = new QMenu(this);QAction* pAc1 = new QAction(u8"动作1", this);QAction* pAc2 = new QAction(u8"动作2", this);QAction* pAc3 = new QAction(u8"动作3", this);QAction* pAc4 = new QAction(u8"删除", this);m_pRightMenu->addAction(pAc1);m_pRightMenu->addAction(pAc2);m_pRightMenu->addAction(pAc3);m_pRightMenu->addAction(pAc4);connect(pAc1, &QAction::triggered, [=] {QMessageBox::information(this, "title", "ac1");});connect(pAc4, &QAction::triggered, [=] {// 动态删除//QList<QListWidgetItem*> list;//list = pListWidget->findItems("帮助", Qt::MatchCaseSensitive); //Qt::MatchCaseSensitive:匹配区分大小写//QListWidgetItem* sel = list[0];//int r = pListWidget->row(sel);//QListWidgetItem* item = pListWidget->takeItem(r);//pListWidget->removeItemWidget(item);//delete item;QListWidgetItem* item = pListWidget->currentItem();pListWidget->removeItemWidget(item);delete item;});
}void widget::on_PopupRightMenu(const QPoint& pos)
{//判断当前坐标处是否是列表项QListWidgetItem* pItem = pListWidget->itemAt(pos);if (!pItem){return;}m_pRightMenu->exec(QCursor::pos());
}
main.cpp:
#include "loginInCode.h"
#include <QtWidgets/QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);loginInCode w;w.show();return a.exec();
}
运行结果:
2.图标模式
-
设置为图标模式
pListWidget->setViewMode(QListView::IconMode); //设置图标模式
-
图标模式如何固定列数显式、设置Item间隙
pListWidget->setFixedWidth(180 * 3 + 30); //设置固定宽度//设置水平、竖直滑动条的属性 pListWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); //屏蔽水平滑动条 pListWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); //垂直滑动条需要时才显示
-
QListWidget样式表
//样式表:给item添加背景色以便更好的识别每个item QString qss = "QListWidget{border:none; background:rgb(251,251,251);} \QListWidget::item{background:blue; margin-left:20px;margin-right:20px;margin-top:10px;}"; pListWidget->setStyleSheet(qss);
-
循环添加图标
for (int i = 0; i < 15; i++) //往pListWidget中循环添加图标56 {QIcon icon = QIcon(":/Widget/resources/env.png");QString name = QString(u8"用户%1").arg(QString::number(i));QListWidgetItem* item1 = new QListWidgetItem(icon, name);item1->setSizeHint(QSize(180, 180)); //180包含了margin-left等间隙的值pListWidget->addItem(item1); }
示例:
widget.h:
#pragma once#include <QtWidgets/QWidget>
#include <QVBoxLayout>
#include <QListWidget>class Widget : public QWidget
{Q_OBJECTpublic:Widget(QWidget *parent = Q_NULLPTR);private:QVBoxLayout* pMainVLayout;QListWidget* pListWidget;
};
widget.cpp:
#include "Widget.h"Widget::Widget(QWidget *parent): QWidget(parent)
{this->resize(QSize(600, 500));pMainVLayout = new QVBoxLayout(this);pListWidget = new QListWidget(this);pListWidget->setFixedWidth(180 * 3 + 30); //设置固定宽度pListWidget->setViewMode(QListView::IconMode); //设置图表模式//设置水平、竖直滑动条的属性pListWidget->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); //屏蔽水平滑动条pListWidget->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); //垂直滑动条需要时才显示//样式表:给item添加背景色以便更好的识别每个itemQString qss = "QListWidget{border:none; background:rgb(251,251,251);} \QListWidget::item{background:blue; margin-left:20px;margin-right:20px;margin-top:10px;}";pListWidget->setStyleSheet(qss);for (int i = 0; i < 15; i++) //往pListWidget中循环添加图标56{QIcon icon = QIcon(":/Widget/resources/env.png");QString name = QString(u8"用户%1").arg(QString::number(i));QListWidgetItem* item1 = new QListWidgetItem(icon, name);item1->setSizeHint(QSize(180, 180)); //180包含了margin-left等间隙的值pListWidget->addItem(item1);}pMainVLayout->addWidget(pListWidget);
}
main.cpp:
#include "Widget.h"
#include <QtWidgets/QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);Widget w;w.show();return a.exec();
}
运行结果:
三、QScrollArea应用详解
QScrollArea
是 Qt 框架中的一个类,它提供了一个可以滚动的区域,用来显示比其自身尺寸更大的内容。QScrollArea
可以包含任何 QWidget 作为其子控件。下面模仿迅雷可以上下滑动的设置界面。大体上是将子窗口创建起来,添加到滑动区域中。
示例:
SCrollAreaDemo.h:
#pragma once#include "CBaseSetWidget.h"
#include "GaojiSetWidget.h"
#include <QtWidgets/QWidget>
#include <QListWidget>
#include <QScrollArea>
#include <QScrollBar>
#include <QHBoxLayout>
#include <QStringList>
#include <QVector>class ScrollAreaDemo : public QWidget
{Q_OBJECTpublic:ScrollAreaDemo(QWidget *parent = Q_NULLPTR);private:QListWidget* m_pListWidget;QScrollArea* m_pScrollArea;QStringList m_textList;CBaseSetWidget* m_pBaseSetWidget;QWidget* m_pYunpanSetWidget;QWidget* m_pDownloadWidget;QWidget* m_pJieguanWidget;QWidget* m_pRenwuWidget;QWidget* m_pTixingWidget;QWidget* m_pXuanfuWidget;GaojiSetWidget* m_pGaojiWidget;QVector<QWidget*> m_vecWidget;bool signFlag = false;private:void slotItemClicked(QListWidgetItem* item);void slotValueChanged(int value);
};
SCrollAreaDemo.cpp:
#include "ScrollAreaDemo.h"
#include <string>using namespace std;ScrollAreaDemo::ScrollAreaDemo(QWidget *parent): QWidget(parent)
{this->setFixedSize(QSize(150 + 1000 + 30, 900));this->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowMinimizeButtonHint);this->setStyleSheet("background:rgb(26, 26, 26);");/*ListWidget*/m_pListWidget = new QListWidget(this);m_pListWidget->setFixedWidth(150);m_pListWidget->setFrameShape(QFrame::NoFrame); //设置控件边框形状为无边框m_pListWidget->setFocusPolicy(Qt::NoFocus);m_textList << u8"基本设置" << u8"云盘设置" << u8"下载设置" << u8"接管设置" << u8"任务管理" << u8"提醒" << u8"悬浮窗" << u8"高级设置";m_pListWidget->addItems(m_textList); //添加多个列表项//lw的样式表;R"()";常用来写jsonstring lw_qss = R"(QListWidget{/*border:1px solid gray; 边界线:宽度、颜色*/background:rgb(26, 26, 26); /* 列表背景色*/color:rgb(200, 200, 200); /*前景色、文字颜色*/font-size:15px;border-radius:1px; /*圆角*/}QListWidget::item{height:40px;padding-left:10px; /*控制文本与left左边的距离 */}QListWidget::item:!active{background:rgb(26, 26, 26);margin:5px 20px 1px 20px; /*上右下左,控制item与ListWidget的距离*/}/*悬浮到项目上时发生右偏移*/QListWidget::item:hover{background:rgb(56, 56, 56);/*padding-left:30px;*/}/*选中项目时,边框圆角与背景色发生改变*/QListWidget::item:selected{border-radius:15px;background:lightblue;}/*上次选择后保留的状态,鼠标离开后显示*/QListWidget::item:selected:!active{background:rgb(51,51,51);color:#3F85FF;})";m_pListWidget->setStyleSheet(QString::fromStdString(lw_qss));/* QScrollArea */m_pScrollArea = new QScrollArea(this);m_pScrollArea->setFixedWidth(1000 + 30);m_pScrollArea->setFrameShape(QFrame::NoFrame);m_pScrollArea->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);m_pScrollArea->setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded);string verticalbar_qss = R"(QScrollBar{width:16px;background:rgb(26, 26, 26);margin:0px, 0px, 0px, 0px;}QScrollBar::handle:vertical{width:8px;background:rgba(162, 163, 165, 100%);border-radius:4px;min-height:40;}QScrollBar::handle:vertical:hover{width:8px;background:rgba(115,118,118, 100%);border-radius:4px;min-height:40;}QScrollBar::add-page:vertical,QScrollBar::sub-page:vertical{background:rgb(26, 26, 26);border-radius:4px;}QScrollBar::top-arrow:vertical,QScrollBar::bottom-arrow:vertical{border: none;background: none;color: none;}QScrollBar::add-line:vertical{border:none;background:none;}QScrollBar::sub-line:vertical{border:none;background:none;})";m_pScrollArea->verticalScrollBar()->setStyleSheet(QString::fromStdString(verticalbar_qss));/*基本设置使用自定义类,其他部分使用图片代替*/m_pBaseSetWidget = new CBaseSetWidget;m_vecWidget.push_back(m_pBaseSetWidget);m_pYunpanSetWidget = new QWidget;m_pYunpanSetWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/YunPanSet.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pYunpanSetWidget->setFixedSize(1000, 478);m_vecWidget.push_back(m_pYunpanSetWidget);m_pDownloadWidget = new QWidget;m_pDownloadWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/XiaZai.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pDownloadWidget->setFixedSize(1000, 337);m_vecWidget.push_back(m_pDownloadWidget);m_pJieguanWidget = new QWidget;m_pJieguanWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/JieGuanSet.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pJieguanWidget->setFixedSize(1000, 340);m_vecWidget.push_back(m_pJieguanWidget);m_pRenwuWidget = new QWidget;m_pRenwuWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/RenwuGuanli.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pRenwuWidget->setFixedSize(1000, 413);m_vecWidget.push_back(m_pRenwuWidget);m_pTixingWidget = new QWidget;m_pTixingWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/TiXing.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pTixingWidget->setFixedSize(1000, 728);m_vecWidget.push_back(m_pTixingWidget);m_pXuanfuWidget = new QWidget;m_pXuanfuWidget->setStyleSheet("background-image:url(:/ScrollAreaDemo/resources/XuanFuChuang.png);background-repeat: no-repeat;background-color:rgb(51, 51, 51)");m_pXuanfuWidget->setFixedSize(1000, 206);m_vecWidget.push_back(m_pXuanfuWidget);m_pGaojiWidget = new GaojiSetWidget;m_vecWidget.push_back(m_pGaojiWidget);QWidget* widget = new QWidget;QVBoxLayout* pVLay = new QVBoxLayout(widget);/*将所有的“设置Widget”添加进来*/for (auto w : m_vecWidget){pVLay->addWidget(w);pVLay->addSpacing(15);}pVLay->setContentsMargins(0, 5, 0, 5);//给QScrollArea设置Widgetm_pScrollArea->setWidget(widget);//整体布局QHBoxLayout* hlay = new QHBoxLayout(this);hlay->addWidget(m_pListWidget);hlay->setSpacing(0);hlay->addWidget(m_pScrollArea);/*点击listWidget的Item切换显示区域*/connect(m_pListWidget, &QListWidget::itemClicked, this, &ScrollAreaDemo::slotItemClicked);/*滚动鼠标中建时ScrollBar值变化的信号槽*/connect(m_pScrollArea->verticalScrollBar(), &QScrollBar::valueChanged,this, &ScrollAreaDemo::slotValueChanged);
}void ScrollAreaDemo::slotItemClicked(QListWidgetItem* item)
{signFlag = true;QString itemText = item->text();QPoint widgetPos;int size = m_textList.size();for (int i = 0; i < size; i++){if (itemText == m_textList[i]){widgetPos = m_vecWidget[i]->pos();}}m_pScrollArea->verticalScrollBar()->setValue(widgetPos.y());
}void ScrollAreaDemo::slotValueChanged(int value)
{if (!signFlag){int itemSize = m_vecWidget.size();for (int i = 0; i < itemSize; i++){//visibleRegion()用来获取当前控件的可视区域,if (!m_vecWidget[i]->visibleRegion().isEmpty()){m_pListWidget->item(i)->setSelected(true); //设置列表项的选中状态return;}else{m_pListWidget->item(i)->setSelected(false);}}}signFlag = false;
}
GaojiSetWidget.h:
#pragma once#include <QWidget>class GaojiSetWidget : public QWidget
{Q_OBJECTpublic:GaojiSetWidget(QWidget* parent = Q_NULLPTR);~GaojiSetWidget();private:};
GaojiSetWidget.cpp:
#include "GaojiSetWidget.h"
#include <QVBoxLayout>
#include <QLabel>GaojiSetWidget::GaojiSetWidget(QWidget* parent): QWidget(parent)
{QLabel* pLabel1 = new QLabel(this);pLabel1->setFixedSize(1000, 541);QPixmap* pixmap = new QPixmap(":/ScrollAreaDemo/resources/GaojiSet_1.png");pixmap->scaled(pLabel1->size(), Qt::KeepAspectRatio);pLabel1->setScaledContents(true);pLabel1->setPixmap(*pixmap);QLabel* pLabel2 = new QLabel(this);pLabel2->setFixedSize(1000, 685);pixmap = new QPixmap(":/ScrollAreaDemo/resources/GaojiSet_2.png");pixmap->scaled(pLabel2->size(), Qt::KeepAspectRatio);pLabel2->setScaledContents(true);pLabel2->setPixmap(*pixmap);QVBoxLayout* pVLay = new QVBoxLayout(this);pVLay->addWidget(pLabel1);pVLay->setSpacing(0);pVLay->addWidget(pLabel2);pVLay->setContentsMargins(0, 0, 0, 0);
}GaojiSetWidget::~GaojiSetWidget()
{
}
CBaseSetWidget.h:
#pragma once
#include <QWidget>
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QCheckBox>
#include <QLabel>
#include <QLineEdit>
#include <QRadioButton>
#include <QPushButton>class CBaseSetWidget : public QWidget
{
public:CBaseSetWidget(QWidget* parent = Q_NULLPTR);~CBaseSetWidget();private:QLabel* pBasesetLabel;QCheckBox* pCheckKaijiqidong;QCheckBox* pCheckMiandarao;QLabel* p1;QLabel* p2;QCheckBox* pCheckBosskey;QLineEdit* pLineEdit;QCheckBox* pCheckNewShowMainUI;QLabel* pXiazaimoshi;QRadioButton* pQuansuxiazai;QRadioButton* pXiansuxiazai;QPushButton* pBtnModify;QLabel* label_cfginfo;QVBoxLayout* pMainVlay;QHBoxLayout* pHlay1;QVBoxLayout* pVlay1;QHBoxLayout* pHlay2;QHBoxLayout* pHlay3;QHBoxLayout* pHlay4;QVBoxLayout* pVlay2;QHBoxLayout* pHlay5;QHBoxLayout* pHlay6;
};
CBaseSetWidget.cpp:
#include "CBaseSetWidget.h"
#include <QHBoxLayout>
#include <QVBoxLayout>
#include <QCheckBox>
#include <QLabel>
#include <QLineEdit>
#include <QRadioButton>
#include <QPushButton>CBaseSetWidget::CBaseSetWidget(QWidget* parent):QWidget(parent)
{setWindowFlags(Qt::FramelessWindowHint);setAttribute(Qt::WA_StyledBackground);this->setStyleSheet("background-color:rgb(51, 51, 51);color:rgb(200,200,200);");QLabel* pBasesetLabel = new QLabel(this);pBasesetLabel->setText(u8"基本设置");QCheckBox* pCheckKaijiqidong = new QCheckBox(this);pCheckKaijiqidong->setText(u8"开机启动");QCheckBox* pCheckMiandarao = new QCheckBox(this);pCheckMiandarao->setFixedWidth(140);pCheckMiandarao->setText(u8"开启免打扰模式");QLabel* p1 = new QLabel(this);p1->setText("?");QCheckBox* pCheckBosskey = new QCheckBox(this);pCheckBosskey->setFixedWidth(105);pCheckBosskey->setText(u8"开启老板键");QLineEdit* pLineEdit = new QLineEdit(this);pLineEdit->setFixedWidth(100);pLineEdit->setStyleSheet("border-style:solid;border-width:1px;border-color:rgb(79,79,79);");QLabel* p2 = new QLabel(this);p2->setText("Alt+D");QCheckBox* pCheckNewShowMainUI = new QCheckBox(this);pCheckNewShowMainUI->setText(u8"新建时显示主界面");QLabel* pXiazaimoshi = new QLabel(this);pXiazaimoshi->setText(u8"下载模式");QRadioButton* pQuansuxiazai = new QRadioButton(this);pQuansuxiazai->setText(u8"全速下载");QRadioButton* pXiansuxiazai = new QRadioButton(this);pXiansuxiazai->setText(u8"极速下载");pXiansuxiazai->setFixedWidth(90);QPushButton* pBtnModify = new QPushButton(this);pBtnModify->setText(u8"修改设置");pBtnModify->setStyleSheet("background-color:#1A1A1A;color:#5F5F5F");QLabel* label_cfginfo = new QLabel(this);label_cfginfo->setText(u8"限制时间段: 00:00-23:59 最大下载速度:不限速");QVBoxLayout* pMainVlay = new QVBoxLayout(this);pMainVlay->addWidget(pBasesetLabel);pMainVlay->addSpacing(20);QHBoxLayout* pHlay1 = new QHBoxLayout(this);pHlay1->addSpacing(35);QVBoxLayout* pVlay1 = new QVBoxLayout(this);pVlay1->addWidget(pCheckKaijiqidong);pVlay1->addSpacing(20);QHBoxLayout* pHlay2 = new QHBoxLayout;pHlay2->addWidget(pCheckMiandarao);pHlay2->addWidget(p1);pVlay1->addLayout(pHlay2); // 添加免打扰的水平布局pVlay1->addSpacing(20);QHBoxLayout* pHlay3 = new QHBoxLayout;pHlay3->addWidget(pCheckBosskey);pHlay3->addWidget(pLineEdit);pHlay3->addWidget(p2);pVlay1->addLayout(pHlay3);pVlay1->addSpacing(20);pVlay1->addWidget(pCheckNewShowMainUI);pVlay1->addSpacing(20);pVlay1->addWidget(pXiazaimoshi); // 下载模式pVlay1->addSpacing(20);QHBoxLayout* pHlay4 = new QHBoxLayout; // 下载模式下面的水平布局pHlay4->addSpacing(30);QVBoxLayout* pVlay2 = new QVBoxLayout(this);QHBoxLayout* pHlay5 = new QHBoxLayout;pHlay5->addWidget(pQuansuxiazai);pHlay5->addWidget(p2);pVlay2->addLayout(pHlay5);pVlay2->addSpacing(20);// 限速下载QHBoxLayout* pHlay6 = new QHBoxLayout;pHlay6->addWidget(pXiansuxiazai);pHlay6->addWidget(pBtnModify);pHlay6->addWidget(label_cfginfo);pHlay6->addStretch();pVlay2->addLayout(pHlay6);pHlay4->addLayout(pVlay2);pVlay1->addLayout(pHlay4);pHlay1->addLayout(pVlay1);pMainVlay->addLayout(pHlay1);pMainVlay->setContentsMargins(20, 20, 20, 20);
}CBaseSetWidget::~CBaseSetWidget()
{
}
main.cpp:
#include "ScrollAreaDemo.h"
#include <QtWidgets/QApplication>int main(int argc, char *argv[])
{QApplication a(argc, argv);ScrollAreaDemo w;w.show();return a.exec();
}
运行结果: