#include "qwdlgmanual.h"
#include <QHBoxLayout>
#include <QVBoxLayout>
void QWDlgManual::iniUI()
{
//创建 Underline, Italic, Bold三个CheckBox，并水平布局
chkBoxUnder=new QCheckBox(tr("Underline"));
chkBoxItalic=new QCheckBox(tr("Italic"));
chkBoxBold=new QCheckBox(tr("Bold"));
QHBoxLayout *HLay1=new QHBoxLayout;
HLay1->addWidget(chkBoxUnder);
HLay1->addWidget(chkBoxItalic);
HLay1->addWidget(chkBoxBold);
//创建 Black, Red, Blue三个RadioButton，并水平布局
rBtnBlack=new QRadioButton(tr("Black"));
rBtnBlack->setChecked(true);//缺省被选中
rBtnRed=new QRadioButton(tr("Red"));
rBtnBlue=new QRadioButton(tr("Blue"));
QHBoxLayout *HLay2=new QHBoxLayout;
HLay2->addWidget(rBtnBlack);
HLay2->addWidget(rBtnRed);
HLay2->addWidget(rBtnBlue);
//创建 确定, 取消, 退出 三个 QPushButton, 并水平布局
btnOK=new QPushButton(tr("确定"));
btnCancel=new QPushButton(tr("取消"));
btnClose=new QPushButton(tr("退出"));
QHBoxLayout *HLay3=new QHBoxLayout;
HLay3->addStretch();
HLay3->addWidget(btnOK);
HLay3->addWidget(btnCancel);
HLay3->addStretch();
HLay3->addWidget(btnClose);
//创建 文本框,并设置初始字体
txtEdit=new QPlainTextEdit;
txtEdit->setPlainText("Hello world\n\nIt is my demo");
QFont font=txtEdit->font(); //获取字体
font.setPointSize(20);//修改字体大小为20
txtEdit->setFont(font);//设置字体
//创建 垂直布局，并设置为主布局
QVBoxLayout *VLay=new QVBoxLayout;
VLay->addLayout(HLay1); //添加字体类型组
VLay->addLayout(HLay2);//添加字体颜色组
VLay->addWidget(txtEdit);//添加PlainTextEdit
VLay->addLayout(HLay3);//添加按键组
setLayout(VLay); //设置为窗体的主布局
}
void QWDlgManual::iniSignalSlots()
{
//三个颜色 QRadioButton的clicked()事件与setTextFontColor()槽函数关联
connect(rBtnBlue,SIGNAL(clicked()),this,SLOT(setTextFontColor()));//
connect(rBtnRed,SIGNAL(clicked()),this,SLOT(setTextFontColor()));//
connect(rBtnBlack,SIGNAL(clicked()),this,SLOT(setTextFontColor()));//
//三个字体设置的 QCheckBox 的clicked(bool)事件与 相应的槽函数关联
connect(chkBoxUnder,SIGNAL(clicked(bool)),this,SLOT(on_chkBoxUnder(bool)));//
connect(chkBoxItalic,SIGNAL(clicked(bool)),this,SLOT(on_chkBoxItalic(bool)));//
connect(chkBoxBold,SIGNAL(clicked(bool)),this,SLOT(on_chkBoxBold(bool)));//
//三个按键与窗体的槽函数关联
connect(btnOK,SIGNAL(clicked()),this,SLOT(accept()));//
connect(btnCancel,SIGNAL(clicked()),this,SLOT(reject()));//
connect(btnClose,SIGNAL(clicked()),this,SLOT(close()));//
}
void QWDlgManual::on_chkBoxUnder(bool checked)
{
QFont font=txtEdit->font();
font.setUnderline(checked);
txtEdit->setFont(font);
}
void QWDlgManual::on_chkBoxItalic(bool checked)
{
QFont font=txtEdit->font();
font.setItalic(checked);
txtEdit->setFont(font);
}
void QWDlgManual::on_chkBoxBold(bool checked)
{
QFont font=txtEdit->font();
font.setBold(checked);
txtEdit->setFont(font);
}
void QWDlgManual::setTextFontColor()
{
QPalette plet=txtEdit->palette();
if (rBtnBlue->isChecked())
plet.setColor(QPalette::Text,Qt::blue);
else if (rBtnRed->isChecked())
plet.setColor(QPalette::Text,Qt::red);
else if (rBtnBlack->isChecked())
plet.setColor(QPalette::Text,Qt::black);
else
plet.setColor(QPalette::Text,Qt::black);
txtEdit->setPalette(plet);
}
QWDlgManual::QWDlgManual(QWidget *parent)
: QDialog(parent)
{
iniUI(); //界面创建与布局
iniSignalSlots(); //信号与槽的关联
setWindowTitle("Form created manually");//设置窗体标题
}
QWDlgManual::~QWDlgManual()
{
}
