Initial commit

Lts/Tools/SqlBrowser/BrowserWnd.cpp

@@ -0,0 +1,251 @@
+#include "ui_BrowserWndUi.h"
+#include "BrowserWnd.h"
+#include "LoginWnd.h"
+#include "Query.h"
+#include "DataModel.h"
+#include "QueryThread.h"
+
+#include <QDebug>
+#include <QGraphicsDropShadowEffect>
+#include <QListWidgetItem>
+#include <QMessageBox>
+#include <QRegExp>
+#include <QShortcut>
+#include <QThread>
+
+
+BrowserWnd::BrowserWnd()
+  : QWidget(nullptr)
+  , m_loginWnd(new LoginWnd(this))
+  , m_waitWnd(new WaitWnd(this))
+  , m_ui(new Ui::BrowserWnd)
+  , m_queryWorker(new QueryWorker())
+  , m_queryThread(new QThread())
+{
+  //setVersionView();
+
+  qRegisterMetaType<LoginData>("LoginData");
+
+  if (!test())
+    exit(1);
+
+  new QShortcut(QKeySequence(QStringLiteral("Ctrl+Q")), this, SLOT(close()));
+
+  connect(this, &BrowserWnd::signalConnect, m_queryWorker, &QueryWorker::slotConnectIt);
+  connect(m_queryWorker, &QueryWorker::signalConnectResult, this, &BrowserWnd::slotConnectResult);
+
+  connect(this, &BrowserWnd::signalGetTableList, m_queryWorker, &QueryWorker::slotGetTableList);
+  connect(m_queryWorker, &QueryWorker::signalNewTableList, this, &BrowserWnd::slotNewTableList);
+
+  m_queryWorker->moveToThread(m_queryThread);
+  m_queryThread->start();
+}
+
+BrowserWnd::~BrowserWnd()
+{
+  endThread();
+  delete m_ui;
+  delete m_waitWnd;
+  delete m_loginWnd;
+}
+
+
+void BrowserWnd::slotAddNewQuery()
+{
+  addNewQuery();
+}
+
+
+void BrowserWnd::slotConnectResult(const QString &result)
+{
+  if (result.isEmpty()) // connection success!
+  {
+    // everything okay, logged in, go!
+    m_ui->setupUi(this);
+
+    // showing Host / DB name in window title
+    this->setWindowTitle(QStringLiteral("RDE SQL Browser on Database: ") + m_loginWnd->getLoginData().database);
+
+    m_ui->splitter->setStretchFactor(0, 0); // not stretch for table list
+    m_ui->splitter->setStretchFactor(1, 1); // stretch the query widget
+
+    this->show();
+
+    addNewQuery();
+
+    refreshTableList();
+
+    connect(m_ui->leFilter, &QLineEdit::textChanged, this, &BrowserWnd::slotFilterTableList);
+    connect(m_ui->lwTables, &QListWidget::itemDoubleClicked, this, &BrowserWnd::slotFilterTableItemChanged);
+    connect(m_ui->twQueries, &QTabWidget::tabCloseRequested, this, &BrowserWnd::slotTabCloseRequested);
+    connect(m_ui->pbNewQuery, &QPushButton::clicked, this, &BrowserWnd::slotAddNewQuery);
+    connect(m_ui->pushButton, &QPushButton::clicked, qApp, &QApplication::quit);
+    connect(m_ui->pushButton_2, &QPushButton::clicked, this, &BrowserWnd::slotHeart);
+  }
+  else // failed with message
+  {
+    QMessageBox::critical(this,
+                          tr("Connection Error"),
+                          tr("Cannot connect to specified server."
+                             "\nError:"
+                             "\n'%1'").arg(result));
+  }
+
+  m_waitWnd->hide();
+}
+
+
+void BrowserWnd::slotFilterTableList(const QString &)
+{
+  refreshTableList();
+}
+
+
+void BrowserWnd::addNewQuery(const QString &tableName) // tableName only set when query from double clicking table list
+{
+  Query *query = new Query(m_queryWorker);
+
+  connect(query, &Query::signalShowWait, this, &BrowserWnd::slotShowWait);
+  connect(query, &Query::signalHideWait, this, &BrowserWnd::slotHideWait);
+
+  int tabIndex = -1;
+
+  if (tableName.length()) // there is a tablename
+  {
+    query->setTable(tableName);
+    tabIndex = m_ui->twQueries->addTab(query, tableName);
+  }
+  else // no tablename
+    tabIndex = m_ui->twQueries->addTab(query, QStringLiteral("Query %1").arg(m_newQueryCounter++));
+
+  m_ui->twQueries->setCurrentIndex(tabIndex);
+}
+
+//#warning TODO: reimpl
+//void BrowserWnd::slotSelectQueryStatus(int percent)
+//{
+//  m_waitWnd->setStatus(percent);
+//}
+
+
+void BrowserWnd::endThread()
+{
+  if (!m_queryThread)
+    return;
+
+  m_queryWorker->dy();
+  m_queryThread->quit();
+  m_queryThread->wait();
+
+  delete m_queryThread;
+  m_queryThread = nullptr;
+  delete m_queryWorker;
+  m_queryWorker = nullptr;
+}
+
+
+void BrowserWnd::refreshTableList()
+{
+  m_ui->lwTables->clear();
+
+  m_waitWnd->wait(QStringLiteral("Refreshing Table List .."));
+
+  emit signalGetTableList();
+}
+
+
+void BrowserWnd::slotNewTableList(QStringList tables)
+{
+  if (!m_ui->leFilter->text().isEmpty()) // filter when there is a filter
+  {
+    QRegExp regExp(m_ui->leFilter->text(), Qt::CaseInsensitive, QRegExp::Wildcard);
+    tables = tables.filter(regExp);
+  }
+
+  m_ui->lwTables->addItems(tables);
+
+  m_waitWnd->hide();
+}
+
+
+void BrowserWnd::startConnect()
+{
+  //m_loginWnd->setDefaultLoginData(presetManager.  defaultLoginData);
+
+  if (!m_loginWnd->exec()) // false = user reject
+  {
+    QCoreApplication::quit();
+    return;
+  }
+
+  m_waitWnd->wait(tr("Connecting .."));
+
+  emit signalConnect(m_loginWnd->getLoginData());
+}
+
+
+bool BrowserWnd::test()
+{
+  if (QSqlDatabase::drivers().isEmpty() ||
+      QSqlDatabase::drivers().indexOf(QLatin1String("QSQLITE")) == -1)
+  {
+    QMessageBox::critical(this,
+                          tr("Missing Qt PostgreSQL driver"),
+                          tr("There is no QPSQL driver."
+                             "\nDid you install the package 'libQt5Sql5-postgresql'?"));
+
+    return false;
+  }
+
+  return true;
+}
+
+
+void BrowserWnd::slotFilterTableItemChanged(QListWidgetItem *item)
+{
+  QString tableName = item->text();
+  addNewQuery(tableName);
+}
+
+
+void BrowserWnd::slotTabCloseRequested(int index)
+{
+  Query *q = qobject_cast<Query *>(m_ui->twQueries->widget(index));
+
+  m_ui->twQueries->removeTab(index);
+
+  if (!q)
+    QMessageBox::critical(this, QStringLiteral("Query Failed"), QStringLiteral("Woops..?!!"));
+
+  delete q; // It´s safe to delete nullptr;
+}
+
+
+void BrowserWnd::slotShowWait(const QString &msg)
+{
+  m_waitWnd->wait(msg);
+}
+
+
+void BrowserWnd::slotHideWait()
+{
+  m_waitWnd->hide();
+}
+
+
+void BrowserWnd::slotHeart()
+{
+  QWidget *w = new QWidget;
+  w->setAttribute(Qt::WA_DeleteOnClose); // delete when closed
+  QVBoxLayout *b = new QVBoxLayout;
+  QLabel *l = new QLabel(QStringLiteral("<html><body>Geschmiedet mit %1 , ohne Kostenträger, für das Team.<br>Diese Software wurde in meiner Freizeit entwickelt, bitte habt Verständnis für Bugs und Geduld für Fixes. Danke! - Euer Mike Wille, SLSE 2016, 17</body></html>").arg(QChar(0x2764)));
+  QGraphicsDropShadowEffect *shadow = new QGraphicsDropShadowEffect;
+  shadow->setOffset(0, 0);
+  shadow->setBlurRadius(22);
+  shadow->setColor(QColor("blue"));
+  l->setGraphicsEffect(shadow);
+  b->addWidget(l);
+  w->setLayout(b);
+
+  w->show();
+}