Qt5.15.2中加入图片资源

系列文章目录

前言

以前用的Qt5.15.2之前的版本，QtCreator默认的工程文件是*.pro，现在用5.15.2创建工程默认的工程文件是CMameList.txt,当然在创建项目时，仍然可以使用pro工程文件用QtCreator打开CMakeList.txt
以前用习惯了pro文件，现在改成CMakeList很不习惯，现在我们在CMakeList.txt中加入资源文件

一、加入图片资源

1.首先，在Qt项目里创建一个目录image，然后将图片资源放image目录中

2.在Qt creator中创建resource file
鼠标右键项目listWidgetSplitter> Add New… > Qt > Qt Resource File > 输入文件名Resources，->next

3.新建资源文件.qrc

4.创建资源文件名Resources.qrc

5.把资源文件加入到你的工程中

6.并在CMakeLists.txt加入Resources.qrc并保存（control + s),这时左侧项目工程会自动生成Resources.qrs

7.左侧右键点击Resources.qrs文件添加前缀

8.添加图片，关联到此前缀来：
右键·Resources.qrc > Open in Editor > 选中>Add Files > 从打开的文件选择器中选择icon1.png,icon2.png,padfsplit.ico,se_center.png



9.添加图片，复制图片路径

在代码中加入图片路径

二、代码

头文件

#ifndef LISTCONTROL_H
#define LISTCONTROL_H

#include <QWidget>
#include <QListWidget>
#include <QListWidgetItem>
#include <QMenu>
#include <QSplitter>
#include <QGridLayout>
#include <QVBoxLayout>
#include <QHBoxLayout>
#include <QLabel>
#include <QPixmap>
#include <QImage>
#include <QIcon>
#include <QMessageBox>
#include <QPushButton>
#include <QAction>
#include <QMouseEvent>

class listControl : public QWidget
{
    Q_OBJECT
public:
    explicit listControl(QWidget *parent = nullptr);

    QListWidget* _listWgtLeft;
    QListWidget* _listWgtRight;

    QSplitter* _splitterMain;

    QMenu* _popMenuLeft;
    QMenu* _menuRight;
private:
    void initUI();

signals:

private slots:

    void onMenuPopSlot(const QPoint &pos);
};

#endif // LISTCONTROL_H

实现文件

#include "listControl.h"

listControl::listControl(QWidget *parent)
    : QWidget{parent}
{
    initUI();
}

void listControl::initUI()
{

    _splitterMain = new QSplitter(Qt::Horizontal, 0); //新建主分割窗口，水平分割
    _listWgtLeft = new QListWidget(_splitterMain);


    //设置样式，直接在函数中设置
    _listWgtLeft->setStyleSheet("QListWidget{border:1px solid gray; color:black; }"
                               "QListWidget::Item{padding-top:1px; padding-bottom:4px; }"
                               "QListWidget::Item:hover{background:skyblue; }"
                               "QListWidget::item:selected{background:lightgray; color:red; }"
                               "QListWidget::item:selected:!active{border-width:0px; background:lightgreen; }"
                               );

    // _listWgtLeft->setResizeMode(QListView::Adjust); //适应布局调整
    _listWgtLeft->setViewMode(QListView::ListMode);
    _listWgtLeft->setMovement(QListView::Free);
    _listWgtLeft->setContextMenuPolicy(Qt::CustomContextMenu);
    _listWgtRight = new QListWidget(_splitterMain);

    // QWidget* itemWgt = new QWidget(_listWgtLeft);

    QGridLayout* itemMainLyt = new QGridLayout;
    QHBoxLayout* itemContentLyt = new QHBoxLayout;


    QListWidgetItem *item1 = new QListWidgetItem(_listWgtLeft);
    item1->setFlags(item1->flags() | Qt::ItemIsEditable); // 设置item可编辑
    QWidget *widget = new QWidget(_listWgtLeft);
    QHBoxLayout *layout = new QHBoxLayout(widget);
    QLabel* lbl01 = new QLabel("");
    QImage* image01 = new QImage;
    image01->load(":/images/icon/pdfsplit.ico");
    lbl01->setPixmap(QPixmap::fromImage(*image01));
    lbl01->setScaledContents(true);

    QPixmap pixMapOgi01(":/images/icon/icon1.png");
    QLabel *lbl02 = new QLabel(u8"卫星轨道1测试");
    QPushButton* btn01 = new QPushButton;
    int btnWidth = btn01->width();
    int btnHeight = btn01->height();
    QPixmap pixmapFit = pixMapOgi01.scaled(btnWidth, btnHeight, Qt::IgnoreAspectRatio, Qt::SmoothTransformation);

    btn01->setIcon(pixmapFit);
    btn01->setStyleSheet(QString("QPushButton {background-color: transparent; }"));
    btn01->setSizePolicy(QSizePolicy::Expanding, QSizePolicy::Expanding);
    layout->addWidget(lbl01, 0, Qt::AlignVCenter | Qt::AlignLeft);
    layout->addWidget(lbl02);
    layout->addWidget(btn01, 0, Qt::AlignVCenter | Qt::AlignRight);
    widget->setLayout(layout);
    item1->setSizeHint(widget->sizeHint()); // 设置item大小
    // item5->setData(Qt::UserRole, 1);
    _listWgtLeft->setItemWidget(item1, widget); // 设置item控件

    _splitterMain->setStretchFactor(0, 4);
    _splitterMain->setStretchFactor(1, 6);

    _splitterMain->setWindowTitle(tr("test splitter"));
    itemMainLyt->addWidget(_splitterMain);

    setLayout(itemMainLyt);

    //右键弹出菜单
    _popMenuLeft = new QMenu(_listWgtLeft);
    QAction* addAct = new QAction(tr("add"));
    QAction* resetHidAct = new QAction(tr("reset hide"));
    QAction* cutAct = new QAction(tr("cut"));
    QAction* copyAct = new QAction(tr("copy"));
    QAction* delAct = new QAction(tr("delete"));
    _popMenuLeft->addAction(addAct);
    _popMenuLeft->addAction(resetHidAct);
    _popMenuLeft->addAction(cutAct);
    _popMenuLeft->addAction(copyAct);
    _popMenuLeft->addAction(delAct);

    connect(_listWgtLeft, &QListView::customContextMenuRequested, this, &listControl::onMenuPopSlot);
}

void listControl::onMenuPopSlot(const QPoint &pos)
{
    // _popMenuLeft->exec(QCursor::pos());
    _popMenuLeft->exec(_listWgtLeft->mapToGlobal(pos));
}

代码调用

```cpp
#include "MainWindow.h"
#include "listControl.h"
#include <QApplication>
#include <QTextCodec>
#include <QDebug>

int main(int argc, char *argv[])
{
    QApplication a(argc, argv);
    // MainWindow w;
    // w.show();

    a.setFont(QFont("Microsoft Yahei", 9));
    QTextCodec::setCodecForLocale(QTextCodec::codecForName("UTF-8"));
    qDebug() << "中文调试信息";

    QFont font("ZYSong18030" , 10);
    a.setFont(font);

    listControl* contrl = new listControl;
    contrl->show();

    return a.exec();
}

运行效果
![在这里插入图片描述](https://img-blog.csdnimg.cn/direct/df747d4c4a4a434fa832478a558def35.gif#pic_center)