121 lines
3.8 KiB
C++
121 lines
3.8 KiB
C++
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#include "ExQcomboBox.h"
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#include "ui_ExQcomboBox.h"
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#include <QMap>
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#include <QTextBlock>
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#include <QDebug>
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ExQcomboBox::ExQcomboBox(QWidget *parent) :
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QWidget(parent),
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ui(new Ui::ExQcomboBox)
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{
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ui->setupUi(this);
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setWindowTitle(QObject::tr("QComboBox和QPlainTextEdit的用法"));
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connect(ui->comBoxRight, &QComboBox::currentTextChanged, this, &ExQcomboBox::onSelectDisplay);
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}
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ExQcomboBox::~ExQcomboBox()
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{
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delete ui;
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}
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//左上角区域+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//初始化简单的QComboBox控件
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void ExQcomboBox::on_btnLeftInit_clicked()
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{
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QIcon ico;
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ico.addFile(":/images/github.ico");
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ui->comBoxLeft->clear();
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for (int i = 0; i < 13; i++) {
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ui->comBoxLeft->addItem(ico, QString("第%1个item项").arg(i)); //带有ico图标的项
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}
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}
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//清除简单的QComboBox控件
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void ExQcomboBox::on_btnLeftClear_clicked()
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{
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ui->comBoxLeft->clear();
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}
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//勾选QComboBox为可以编辑状态
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void ExQcomboBox::on_checkBoxOnlyWrite_clicked()
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{
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if(ui->checkBoxOnlyWrite->isChecked())
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ui->comBoxLeft->setEditable(true);
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else
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ui->comBoxLeft->setEditable(false);
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}
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//右上角区域+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//初始化复杂的QComboBox控件（给每一项都添加一个对应的自定义数据[不显示]）
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void ExQcomboBox::on_btnRightInit_clicked()
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{
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QIcon ico;
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ico.addFile(":/images/gril.ico");
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QMap<QString, QString> map;
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map.insert("张投", "16岁");
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map.insert("张我", "17岁");
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map.insert("张以", "18岁");
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map.insert("张木", "19岁");
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map.insert("张李", "20岁");
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map.insert("张，", "21岁");
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map.insert("张报", "22岁");
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map.insert("张之", "23岁");
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map.insert("张以", "24岁");
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map.insert("张琼", "25岁");
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map.insert("张玖", "26岁");
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map.insert("张。", "27岁");
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ui->comBoxRight->clear();
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foreach(QString str, map.keys()){
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ui->comBoxRight->addItem(ico, str, map.value(str)); //因为有Map，所以QComboBox显示会按照key排序，而非上面的定义顺序,注意不是map.key(str)
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}
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}
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//底部区域+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//文本框内容每次读取一行，添加到ComboBox作为item项
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void ExQcomboBox::on_btnBottomAdd_clicked()
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{
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QTextDocument* doc = ui->plainTextEdit->document(); //获取文本对象
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int cnt = doc->blockCount(); //回车符是一个block
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QIcon ico;
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ico.addFile(":/images/github.ico");
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ui->comBoxLeft->clear();
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ui->comBoxRight->clear();
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for (int i = 0; i < cnt; i++) {
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QTextBlock text = doc->findBlockByNumber(i); //获取文本中一段（以换行为标志）
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ui->comBoxLeft->addItem(ico, text.text());
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ui->comBoxRight->addItem(ico, text.text(), QString("附加内容:%1").arg(i));
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}
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}
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//清除可编辑的富文本的编辑器的所有内容
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void ExQcomboBox::on_btnBottomClear_clicked()
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{
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ui->plainTextEdit->clear();
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}
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//设置富文本的编辑器(plainTextEdit)只可读
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void ExQcomboBox::on_checkBoxOnlyRead_clicked()
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{
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if(ui->checkBoxOnlyRead->isChecked())
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ui->plainTextEdit->setEnabled(false);
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else
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ui->plainTextEdit->setEnabled(true);
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}
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//公共的槽函数区域+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
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//显示当前选中的ComboBox的item项的内容
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void ExQcomboBox::onSelectDisplay(QString str)
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{
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QString strData = ui->comBoxRight->currentData().toString(); // 获取当前item的关联数据的内容
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ui->labDisplay->setText(str + " " + strData);
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ui->plainTextEdit->appendPlainText(str + " " + strData);
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}
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