#include?“LoginDialog.h“
#include?“ui_LoginDialog.h“
#include?
LoginDialog::LoginDialog（QWidget?*parent）?:
????QDialog（parent）
????ui（new?Ui::LoginDialog）
{
????ui->setupUi（this）;
????//創建QSqlTableModel
????model=new?QSqlTableModel（this）;
????model->setEditStrategy（QSqlTableModel::OnManualSubmit）;
????//設置登錄對話框的標題
????this->setWindowtitle（“登錄“）;
????//設置登錄對話框的圖標
????this->setWindowIcon（QIcon（“:/student/img/book.jpg“））;
????//設置登錄對話框大小固定為399*252
????this->setMaximumSize（399252）;
????this->setMinimumSize（399252）;
????//設置調色板用于設置titlelabel的顏色
????QPalette?p;
????p.setColor（QPalette::WindowTextQt::black）;
????ui->titlelabel->setPalette（p）;
????//設置調色板用于設置logindialog的背景
????QPalette?palette;
????palette.setBrush（QPalette::BackgroundQBrush（QPixmap（“:/student/img/loginbk1.jpg“）.scaled（this->size（））））;
????this->setPalette（palette）;
????//設置三個按鈕的圖標
????ui->exitbtn->setIcon（QIcon（“:/student/img/exit.png“））;
????ui->registerbtn->setIcon（QIcon（“:/student/img/log.png“））;
????ui->loginbtn->setIcon（QIcon（“:/student/img/Enter.png“））;
????//設置groupbox，放置兩個radiobutton
????radiogroup=new?QButtonGroup（this）;
????radiogroup->addButton（ui->studentradio0）;
????radiogroup->addButton（ui->teacherradio1）;
????//設置圖片
????ui->piclabel->setPixmap（QPixmap（“:/student/img/log.png“）.scaled（ui->piclabel->size（）））;
????//設置登錄按鈕不可用
????ui->loginbtn->setEnabled（false）;
????//設置lineedit提示語句
????ui->userline->setPlaceholderText（“請輸入用戶名“）;
????ui->passwordline->setPlaceholderText（“請輸入密碼“）;
????//設置passlineedit顯示為密碼模式
????ui->passwordline->setEchoMode（QLineEdit::Password）;
????//連接信號與槽
????connect（ui->loginbtnSIGNAL（clicked（））thisSLOT（loginbtnSlot（）））;
????connect（ui->registerbtnSIGNAL（clicked（））thisSLOT（registerbtnSlot（）））;
????connect（ui->exitbtnSIGNAL（clicked（））thisSLOT（exitbtnSlot（）））;
????//設置登錄按鈕可用
????connect（ui->userlineSIGNAL（textChanged（QString））thisSLOT（loginbtnSetSlot（QString）））;
????connect（ui->passwordlineSIGNAL（textChanged（QString））thisSLOT（loginbtnSetSlot（QString）））;
}
LoginDialog::~LoginDialog（）
{
????delete?ui;
}
void?LoginDialog::loginbtnSlot（）
{
????if（!this->judgeEmpty（））
????{
????????ui->passwordline->clear（）;
????????return;
????}
????//判斷是否學生登錄
????if（radiogroup->checkedId（）==0）
????{
????????model->setTable（“student“）;
????????model->select（）;
????????int?i;
????????for（i=0;irowCount（）;i++）
????????{
????????????QSqlRecord?record=model->record（i）;

????????????if（record.value（0）==ui->userline->text（）&&
????????????????????record.value（5）==ui->passwordline->text（））
????????????{
????????????????QString?str1=“登錄成功“;
????????????????QString?str2=record.value（1）.toString（）;
????????????????QString?str3=“學生“;
????????????????QMessageBox::information（this“提示“str3+str2+str1QMessageBox::Yes）;
????????????????this->clearAll（）;
????????????????//創建學生成績管理窗口
????????????????student=new?StudentManage;
????????????????//連接學生成績管理窗口和登錄對話框信號與槽
?????

?屬性????????????大小?????日期????時間???名稱
-----------?---------??----------?-----??----
?????目錄???????????0??2015-12-08?18:02??StudentSystem\
?????文件????????6663??2015-12-12?01:40??StudentSystem\LoginDialog.cpp
?????文件?????????927??2015-12-11?14:17??StudentSystem\LoginDialog.h
?????文件????????7926??2015-12-10?22:27??StudentSystem\LoginDialog.ui
?????文件????????7818??2015-12-12?01:42??StudentSystem\RegisterDialog.cpp
?????文件?????????753??2015-12-09?10:45??StudentSystem\RegisterDialog.h
?????文件????????5845??2015-12-09?00:16??StudentSystem\RegisterDialog.ui
?????文件????????4091??2015-12-10?22:46??StudentSystem\StuInfo.cpp
?????文件?????????791??2015-12-10?20:56??StudentSystem\StuInfo.h
?????文件????????4632??2015-12-11?00:29??StudentSystem\StuInfo.ui
?????文件????????1717??2015-12-11?13:33??StudentSystem\StuInfoSearch.cpp
?????文件?????????626??2015-12-11?13:30??StudentSystem\StuInfoSearch.h
?????文件????????5045??2015-12-11?00:29??StudentSystem\StuInfoSearch.ui
?????文件????????4845??2015-12-10?22:46??StudentSystem\StuPassWord.cpp
?????文件?????????714??2015-12-10?21:05??StudentSystem\StuPassWord.h
?????文件????????5009??2015-12-11?15:42??StudentSystem\StuPassWord.ui
?????文件????????5753??2015-12-11?14:48??StudentSystem\StudentManage.cpp
?????文件????????1190??2015-12-11?17:56??StudentSystem\StudentManage.h
?????文件????????7350??2015-12-11?14:17??StudentSystem\StudentManage.ui
?????文件????????1825??2015-12-12?13:10??StudentSystem\StudentSocre.cpp
?????文件?????????586??2015-12-11?00:38??StudentSystem\StudentSocre.h
?????文件????????1711??2015-12-11?16:44??StudentSystem\StudentSocre.ui
?????文件????????1299??2015-12-11?21:30??StudentSystem\StudentSystem.pro
?????文件???????33524??2015-12-12?13:11??StudentSystem\StudentSystem.pro.user
?????文件????????4717??2015-12-11?22:37??StudentSystem\TeaPassWord.cpp
?????文件?????????720??2015-12-11?22:34??StudentSystem\TeaPassWord.h
?????文件????????4517??2015-12-11?20:38??StudentSystem\TeaPassWord.ui
?????文件????????3058??2015-12-12?02:00??StudentSystem\TeacherChangeScore.cpp
?????文件?????????744??2015-12-11?23:53??StudentSystem\TeacherChangeScore.h
?????文件????????2632??2015-12-11?23:57??StudentSystem\TeacherChangeScore.ui
?????文件????????2718??2015-12-12?01:56??StudentSystem\TeacherDelete.cpp
............此處省略62個文件信息