Qt 实现界面换肤功能

#include "frmmain.h" #include "ui_frmmain.h" #include "iconhelper.h" #include "myhelper.h" frmMain::frmMain(QWidget *parent) : QDialog(parent), ui(new Ui::frmMain) { ui->setupUi(this); myHelper::FormInCenter(this); this->InitStyle(); } frmMain::~frmMain() { delete ui; } void frmMain::InitStyle() { //设置窗体标题栏隐藏 this->setWindowFlags(Qt::FramelessWindowHint | Qt::WindowSystemMenuHint | Qt::WindowMinMaxButtonsHint); location = this->geometry(); max = false; mousePressed = false; //安装事件监听器,让标题栏识别鼠标双击 ui->lab_Title->installEventFilter(this); IconHelper::Instance()->SetIcon(ui->btnMenu_Close, QChar(0xf00d), 12); IconHelper::Instance()->SetIcon(ui->btnMenu_Max, QChar(0xf096), 10); IconHelper::Instance()->SetIcon(ui->btnMenu_Min, QChar(0xf068), 10); IconHelper::Instance()->SetIcon(ui->btnMenu, QChar(0xf0c9), 10); IconHelper::Instance()->SetIcon(ui->lab_Ico, QChar(0xf015), 12); } bool frmMain::eventFilter(QObject *obj, QEvent *event) { if (event->type() == QEvent::MouseButtonDblClick) { this->on_btnMenu_Max_clicked(); return true; } return QObject::eventFilter(obj, event); } void frmMain::mouseMoveEvent(QMouseEvent *e) { if (mousePressed && (e->buttons() && Qt::LeftButton) && !max) { this->move(e->globalPos() - mousePoint); e->accept(); } } void frmMain::mousePressEvent(QMouseEvent *e) { if (e->button() == Qt::LeftButton) { mousePressed = true; mousePoint = e->globalPos() - this->pos(); e->accept(); } } void frmMain::mouseReleaseEvent(QMouseEvent *) { mousePressed = false; } void frmMain::on_btnMenu_Close_clicked() { qApp->exit(); } void frmMain::on_btnMenu_Max_clicked() { if (max) { this->setGeometry(location); IconHelper::Instance()->SetIcon(ui->btnMenu_Max, QChar(0xf096), 10); ui->btnMenu_Max->setToolTip("最大化"); } else { location = this->geometry(); this->setGeometry(qApp->desktop()->availableGeometry()); IconHelper::Instance()->SetIcon(ui->btnMenu_Max, QChar(0xf079), 10); ui->btnMenu_Max->setToolTip("还原");; } max = !max; } void frmMain::on_btnMenu_Min_clicked() { this->showMinimized(); } void frmMain::on_pushButton_clicked() { myHelper::ShowMessageBoxInfo("恭喜你获得我公司送出的1000万元大礼一份!"); } void frmMain::on_pushButton_2_clicked() { int result = myHelper::ShowMessageBoxQuesion("确定真的不要我了吗?"); if (result == 1) { myHelper::ShowMessageBoxInfo("你好狠心啊!"); } else { myHelper::ShowMessageBoxInfo("亲爱的,我就知道你不会离开我的!"); } } void frmMain::on_pushButton_3_clicked() { myHelper::ShowMessageBoxError("天空飘来五个字!"); } void frmMain::on_comboBox_currentIndexChanged(int index) { switch(index) { case 0: myHelper::SetStyle("black"); break; case 1: myHelper::SetStyle("blue"); break; case 2: myHelper::SetStyle("gray"); break; case 3: myHelper::SetStyle("navy"); break; } }