#include "dialog.h"
#include "ui_dialog.h"

Dialog::Dialog(QWidget *parent) :QDialog(parent),ui(new Ui::Dialog)
{
    ui->setupUi(this);

    this->setWindowTitle("New Doc <By: LyShark >");           // 窗口標(biāo)題
    this->setAttribute(Qt::WA_DeleteOnClose);  // 關(guān)閉時(shí)自動(dòng)刪除
    this->setFixedSize(200,100);               // 設(shè)置窗體大小
    // this->setWindowIcon(QIcon(":/image/1.ico"));
}

Dialog::~Dialog()
{
    delete ui;
}

// 獲取窗體標(biāo)題
// By: LyShark
QString Dialog::currentFileName()
{
    QString title = this->windowTitle();
    return title;
}

// 設(shè)置編輯框內(nèi)容
// https://www.cnblogs.com/lyshark
void Dialog::SetData(QString data)
{
    ui->lineEdit->setText(data);
}

#include "mainwindow.h"
#include "ui_mainwindow.h"
#include "dialog.h"
#include <iostream>
#include <QCloseEvent>

// 如果直接關(guān)閉,則清空所有對(duì)話框
// https://www.cnblogs.com/lyshark
void MainWindow::closeEvent(QCloseEvent *event)
{
    ui->mdiArea->closeAllSubWindows();
    event->accept();
}

// By: LyShark
MainWindow::MainWindow(QWidget *parent) :QMainWindow(parent),ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setCentralWidget(ui->mdiArea);
    //this->setWindowState(Qt::WindowMaximized); //窗口最大化顯示
    ui->mainToolBar->setToolButtonStyle(Qt::ToolButtonTextUnderIcon);
    ui->mdiArea->setViewMode(QMdiArea::SubWindowView); //子窗口模式
}

MainWindow::~MainWindow()
{
    delete ui;
}

// 新建窗體
void MainWindow::on_actionOpen_triggered()
{
    Dialog *formDoc = new Dialog(this); //
    ui->mdiArea->addSubWindow(formDoc); //文檔窗口添加到MDI
    formDoc->show(); //在單獨(dú)的窗口中顯示
}
// 關(guān)閉全部
void MainWindow::on_actionClose_triggered()
{
    ui->mdiArea->closeAllSubWindows(); //關(guān)閉所有子窗口
}

// 轉(zhuǎn)為MID模式
void MainWindow::on_actionMID_triggered(bool checked)
{
    // Tab多頁(yè)顯示模式
    if (checked)
    {
        ui->mdiArea->setViewMode(QMdiArea::TabbedView); // Tab多頁(yè)顯示模式
        ui->mdiArea->setTabsClosable(true);             // 頁(yè)面可關(guān)閉
        ui->actionLine->setEnabled(false);
        ui->actionTile->setEnabled(false);
    }
    // 子窗口模式
    else
    {
        ui->mdiArea->setViewMode(QMdiArea::SubWindowView); // 子窗口模式
        ui->actionLine->setEnabled(true);
        ui->actionTile->setEnabled(true);
    }
}

// 級(jí)聯(lián)模式
void MainWindow::on_actionLine_triggered()
{
    ui->mdiArea->cascadeSubWindows();
}

// 平鋪模式
void MainWindow::on_actionTile_triggered()
{
    ui->mdiArea->tileSubWindows();
}

// 當(dāng)子窗體打開(kāi)時(shí)獲取到其窗體標(biāo)題
// By: LyShark
void MainWindow::on_mdiArea_subWindowActivated(QMdiSubWindow *arg1)
{
    Q_UNUSED(arg1);

    // 若子窗口個(gè)數(shù)為零,則將statusBar置空
    if (ui->mdiArea->subWindowList().count()==0)
    {
        ui->statusBar->clearMessage();
    }
    else
    {
        // 如果不為0則顯示主窗口的文件名
        Dialog *formDoc=static_cast<Dialog*>(ui->mdiArea->activeSubWindow()->widget());
        ui->statusBar->showMessage(formDoc->currentFileName());
    }
}

// 對(duì)選中窗體發(fā)送數(shù)據(jù)
// https://www.cnblogs.com/lyshark
void MainWindow::on_actionSendMsg_triggered()
{
    // 先獲取當(dāng)前MDI子窗口
    Dialog *formDoc;

    // 如果打開(kāi)則獲取活動(dòng)窗體
    if (ui->mdiArea->subWindowList().count() > 0)
    {
        formDoc=(Dialog*)ui->mdiArea->activeSubWindow()->widget();
        // 對(duì)活動(dòng)窗體設(shè)置數(shù)據(jù)
        formDoc->SetData("hello lyshark");
    }
}