#include "dialog.h"

#include "ui_dialog.h"

#include <QGridLayout>

#include <QFileDialog>

#include <QPushButton>

#include <QColorDialog>

#include <QFontDialog>

#include <QMessageBox>

Dialog::Dialog(QWidget *parent) :

QDialog(parent),

ui(new Ui::Dialog)

{

ui->setupUi(this);

// set the dialog border round

//this->setMask(roundedRect(this->rect(), 8));

setWindowTitle(QStringLiteral("各种标准对话框的实例"));

fileBtn = new QPushButton; //各个控件对象的初始化

fileBtn->setText(QStringLiteral("文件标准对话框实例"));

fileLineEdit = new QLineEdit; //用来显示选择的文件名

mainLayout = new QGridLayout(this); //布局设计

mainLayout->addWidget(fileBtn,0,0);

mainLayout->addWidget(fileLineEdit,0,1);

connect(fileBtn, SIGNAL(clicked()), this, SLOT(showFile())); //事件关联

colorBtn = new QPushButton; //创建各个控件的对象

colorBtn->setText(QStringLiteral("颜色标准对话框实例"));

colorFrame = new QFrame;

colorFrame->setFrameShape(QFrame::Box);

colorFrame->setAutoFillBackground(true);

mainLayout->addWidget(colorBtn,1,0); //布局设计

mainLayout->addWidget(colorFrame,1,1);

connect(colorBtn, SIGNAL(clicked()), this, SLOT(showColor())); //事件关联

fontBtn = new QPushButton; //创建控件的对象

fontBtn->setText(QStringLiteral("字体标准对话框实例"));

fontLineEdit = new QLineEdit; //显示更改的字符串

fontLineEdit->setText(QStringLiteral("Welcome!"));

mainLayout->addWidget(fontBtn,2,0); //布局设计

mainLayout->addWidget(fontLineEdit,2,1);

connect(fontBtn, SIGNAL(clicked()), this, SLOT(showFont())); //事件关联

inputBtn = new QPushButton; //创建控件的对象

inputBtn->setText(QStringLiteral("标准输入对话框实例"));

mainLayout->addWidget(inputBtn,3,0); //布局设计

connect(inputBtn,SIGNAL(clicked()),this,SLOT(showInputDlg()));

//事件关联

MsgBtn = new QPushButton; //创建控件对象

MsgBtn->setText(QStringLiteral("标准消息对话框实例"));

mainLayout->addWidget(MsgBtn,3,1);

connect(MsgBtn,SIGNAL(clicked()),this,SLOT(showMsgDlg()));

CustomBtn = new QPushButton;

CustomBtn->setText(QStringLiteral("用户自定义消息对话框实例"));

label = new QLabel;

label->setFrameStyle(QFrame::Panel|QFrame::Sunken);

mainLayout->addWidget(CustomBtn,4,0);

mainLayout->addWidget(label,4,1);

connect(CustomBtn,SIGNAL(clicked()),this,SLOT(showCustomDlg()));

}

Dialog::~Dialog()

{

delete ui;

}

void Dialog::showFile()

{

QString s = QFileDialog::getOpenFileName(this,"open file dialog","/","C++ files(*.cpp)::C files(*.c)::Head files(*.h)");

fileLineEdit->setText(s);

}

void Dialog::showColor()

{

QColor c = QColorDialog::getColor(Qt::blue);

if(c.isValid())

{

colorFrame->setPalette(QPalette(c));

}

}

void Dialog::showFont()

{

bool ok;

QFont f = QFontDialog::getFont(&ok);

if (ok)

{

fontLineEdit->setFont(f);

}

}

void Dialog::showInputDlg()

{

inputDlg = new InputDlg(this);

inputDlg->show();

}

void Dialog::showMsgDlg()

{

msgDlg = new MsgBoxDlg();

msgDlg->show();

}

void Dialog::showCustomDlg()

{

label->setText(QStringLiteral("Custom Message Box"));

QMessageBox customMsgBox;

customMsgBox.setWindowTitle(QStringLiteral("用户自定义消息框")); //设置消息框的标题

QPushButton *yesBtn = customMsgBox.addButton(QStringLiteral("Yes"), QMessageBox::ActionRole);

QPushButton *noBtn = customMsgBox.addButton(QStringLiteral("No"), QMessageBox::ActionRole);

QPushButton *cancelBtn = customMsgBox.addButton(QMessageBox::Cancel);

customMsgBox.setText(QStringLiteral("这是一个用户自定义消息框!"));

customMsgBox.setIconPixmap(QPixmap("Qt.png"));

customMsgBox.exec();

if(customMsgBox.clickedButton()== yesBtn)

{

label->setText("Custom Message Box/Yes");

}

if(customMsgBox.clickedButton()== noBtn)

{

label->setText("Custom Message Box/No");

}

if(customMsgBox.clickedButton()== cancelBtn)

{

label->setText("Custom Message Box/Cancel");

}

return;

}

QRegion Dialog::roundedRect(const QRect &rect, int r)

{

QRegion region;

// middle and borders

region += rect.adjusted(r, 0, -r, 0);

region += rect.adjusted(0, r, 0, -r);

// top left

QRect corner(rect.topLeft(), QSize(r*2, r*2));

region += QRegion(corner, QRegion::Ellipse);

// top right

corner.moveTopRight(rect.topRight());

region += QRegion(corner, QRegion::Ellipse);

// bottom left

corner.moveBottomLeft(rect.bottomLeft());

region += QRegion(corner, QRegion::Ellipse);

// bottom right

corner.moveBottomRight(rect.bottomRight());

region += QRegion(corner, QRegion::Ellipse);

return region;

}