QNotepad/mainwindow.cpp at main · arshc0der/QNotepad · GitHub

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#include "mainwindow.h"
#include "ui_mainwindow.h"
#include <QFile>
#include <QFileDialog>
#include <QTextStream>
#include <QMessageBox>
#include <QFontDialog>
#include <QFont>
#include <QColorDialog>
#include <QColor>
#include <QPrinter>
#include <QPrintDialog>

MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);
    this->setCentralWidget(ui->textEdit);//help to remove space from side

    // Assuming QTextEdit named 'textEdit' and a QStatusBar named 'statusBar'
    connect(ui->textEdit, &QTextEdit::textChanged, this, [=] {
        int charCount = ui->textEdit->toPlainText().length();
        ui->statusbar->showMessage(QString("Character count: %1").arg(charCount), 2000);
    });

}

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


void MainWindow::on_actionNew_triggered()
{
    file_path = "";
    ui->textEdit->setText("");
}

void MainWindow::on_actionOpen_triggered()
{
    QString file_name = QFileDialog::getOpenFileName(this,"open the file");
    QFile file(file_name);
    file_path = file_name;
    if(!file.open(QFile::ReadOnly | QFile::Text)){
        QMessageBox::warning(this,"..","file not open");
        return;
    }
    QTextStream in(&file);
    QString text = in.readAll();
    ui->textEdit->setText(text);
    file.close();
}

void MainWindow::on_actionSave_triggered()
{
    QFile file(file_path);
    if(!file.open(QFile::WriteOnly | QFile::Text)){
        QMessageBox::warning(this,"..","file not open");
        return;
    }
    QTextStream out(&file);
    QString text = ui->textEdit->toPlainText();
    out << text;
    file.flush();
    file.close();
}


void MainWindow::on_actionSave_as_triggered()
{
    QString file_name = QFileDialog::getSaveFileName(this,"open the file");
    QFile file(file_name);
    file_path = file_name;
    if(!file.open(QFile::WriteOnly | QFile::Text)){
        QMessageBox::warning(this,"..","file not open");
        return;
    }
    QTextStream out(&file);
    QString text = ui->textEdit->toPlainText();
    out << text;
    file.flush();
    file.close();
}

void MainWindow::on_actionCut_triggered()
{
    ui->textEdit->cut();
}


void MainWindow::on_actionCopy_triggered()
{
     ui->textEdit->copy();
}


void MainWindow::on_actionPaste_triggered()
{
     ui->textEdit->paste();
}


void MainWindow::on_actionRedo_triggered()
{
     ui->textEdit->redo();
}


void MainWindow::on_actionUndo_triggered()
{
     ui->textEdit->undo();
}

void MainWindow::on_actionabout_triggered()
{
    QString about_text;
    about_text = "Author : arsh\n";
    about_text += "Date : 06/07/2024\n";
    about_text += "(C) Notepad (R)";

    QMessageBox::about(this,"About Notepad",about_text);
}


void MainWindow::on_actionFont_triggered()
{
    bool ok;
    QFont font = QFontDialog::getFont(&ok,this);
    if(ok){
        ui->textEdit->setFont(font);
    }else{
        return;
    }
}

void MainWindow::on_actionColor_triggered()
{
    QColor color = QColorDialog::getColor(Qt::white,this,"choose color");
    if(color.isValid()){
        ui->textEdit->setTextColor(color);
    }else{
        return;
    }
}


void MainWindow::on_actionText_Background_Color_triggered()
{
    QColor color = QColorDialog::getColor(Qt::white,this,"choose color");
    if(color.isValid()){
        ui->textEdit->setTextBackgroundColor(color);
    }
}


void MainWindow::on_actionBackground_Color_triggered()
{
    QColor color = QColorDialog::getColor(Qt::white,this,"choose color");
    if(color.isValid()){
        ui->textEdit->setPalette(QPalette(color));
    }
}


void MainWindow::on_actionPrint_triggered()
{
    QPrinter printer;
    printer.setPrinterName("Micosoft printer");
    QPrintDialog dialog(&printer,this);
    if(dialog.exec()==QDialog::Rejected) return;
    ui->textEdit->print(&printer);
}