Rename dialog files and classes

Rename the files and classes for the dialogs to share all the same
naming pattern. This should make navigation in the code a bit easier.
Do not include dialogs not rewritten yet; they'll be edited as they are
redesigned.

src/EditTableDialog.cpp

@@ -0,0 +1,200 @@
+#include "EditTableDialog.h"
+#include "ui_EditTableDialog.h"
+#include "EditFieldDialog.h"
+#include <QMessageBox>
+#include <QPushButton>
+#include "sqlitedb.h"
+
+EditTableDialog::EditTableDialog(QWidget* parent)
+    : QDialog(parent),
+      modified(false),
+      pdb(0),
+      ui(new Ui::EditTableDialog)
+{
+    ui->setupUi(this);
+}
+
+EditTableDialog::~EditTableDialog()
+{
+    delete ui;
+}
+
+void EditTableDialog::setActiveTable(DBBrowserDB * thedb, QString tableName)
+{
+    // Set variables
+    pdb = thedb;
+    curTable = tableName;
+
+    // Editing an existing table?
+    if(curTable != "")
+    {
+        // Existing table, so load and set the current layout
+        populateFields();
+
+        // And create a savepoint
+        pdb->executeSQL(QString("SAVEPOINT edittable_%1_save;").arg(curTable));
+    }
+
+    // Update UI
+    ui->editTableName->setText(curTable);
+    checkInput();
+}
+
+void EditTableDialog::populateFields()
+{
+    if (!pdb) return;
+
+    //make sure we are not using cached information
+    pdb->updateSchema();
+
+    fields= pdb->getTableFields(curTable);
+    types= pdb->getTableTypes(curTable);
+    ui->treeWidget->model()->removeRows(0, ui->treeWidget->model()->rowCount());
+    QStringList::Iterator tt = types.begin();
+    for ( QStringList::Iterator ct = fields.begin(); ct != fields.end(); ++ct ) {
+        QTreeWidgetItem *fldItem = new QTreeWidgetItem();
+        fldItem->setText( 0, *ct  );
+        fldItem->setText( 1, *tt );
+        ui->treeWidget->addTopLevelItem(fldItem);
+        ++tt;
+    }
+}
+
+void EditTableDialog::accept()
+{
+    // Are we editing an already existing table or designing a new one? In the first case there is a table name set,
+    // in the latter the current table name is empty
+    if(curTable == "")
+    {
+        // Creation of new table
+
+        // Prepare creation of the table
+        QList<DBBrowserField> tbl_structure;
+        for(int i=0;i<ui->treeWidget->topLevelItemCount();i++)
+            tbl_structure.push_back(DBBrowserField(ui->treeWidget->topLevelItem(i)->text(0), ui->treeWidget->topLevelItem(i)->text(1)));
+
+        // Create table
+        if(!pdb->createTable(ui->editTableName->text(), tbl_structure))
+        {
+            QMessageBox::warning(this, QApplication::applicationName(), QString("Error creating table. Message from database engine:\n%1").arg(pdb->lastErrorMessage));
+            return;
+        }
+        modified = true;
+    } else {
+        // Editing of old table
+
+        // Rename table if necessary
+        if(ui->editTableName->text() != curTable)
+        {
+            QApplication::setOverrideCursor( Qt::WaitCursor ); // this might take time
+            modified = true;
+            if(!pdb->renameTable(curTable, ui->editTableName->text()))
+            {
+                QApplication::restoreOverrideCursor();
+                QMessageBox::warning(this, QApplication::applicationName(), pdb->lastErrorMessage);
+                return;
+            } else {
+                QApplication::restoreOverrideCursor();
+            }
+        }
+
+        // Release the savepoint
+        pdb->executeSQL(QString("RELEASE SAVEPOINT edittable_%1_save;").arg(curTable));
+    }
+
+    QDialog::accept();
+}
+
+void EditTableDialog::reject()
+{
+    // Have we been in the process of editing an old table?
+    if(curTable != "")
+    {
+        // Then rollback to our savepoint
+         pdb->executeSQL(QString("ROLLBACK TO SAVEPOINT edittable_%1_save;").arg(curTable));
+    }
+
+    QDialog::reject();
+}
+
+void EditTableDialog::checkInput()
+{
+    ui->editTableName->setText(ui->editTableName->text().trimmed());
+    bool valid = true;
+    if(ui->editTableName->text().isEmpty() || ui->editTableName->text().contains(" "))
+        valid = false;
+    if(ui->treeWidget->topLevelItemCount() == 0)
+        valid = false;
+    ui->buttonBox->button(QDialogButtonBox::Ok)->setEnabled(valid);
+}
+
+void EditTableDialog::editField()
+{
+    if(!ui->treeWidget->currentItem())
+        return;
+
+    // Show the edit dialog
+    QTreeWidgetItem *item = ui->treeWidget->currentItem();
+    EditFieldDialog dialog(this);
+    dialog.setInitialValues(pdb, curTable == "", curTable, item->text(0), item->text(1));
+    if(dialog.exec())
+    {
+        modified = true;
+        item->setText(0, dialog.field_name);
+        item->setText(1, dialog.field_type);
+    }
+}
+
+void EditTableDialog::addField()
+{
+    EditFieldDialog dialog(this);
+    dialog.setInitialValues(pdb, true, curTable, QString(""), QString(""));
+    if(dialog.exec())
+    {
+        QTreeWidgetItem *tbitem = new QTreeWidgetItem(ui->treeWidget);
+        tbitem->setText(0, dialog.field_name);
+        tbitem->setText(1, dialog.field_type);
+        modified = true;
+        ui->treeWidget->addTopLevelItem(tbitem);
+        checkInput();
+    }
+}
+
+void EditTableDialog::removeField()
+{
+    // Is there any item selected to delete?
+    if(!ui->treeWidget->currentItem())
+        return;
+
+    // Are we creating a new table or editing an old one?
+    if(curTable == "")
+    {
+        // Creating a new one
+
+        // Just delete that item. At this point there is no DB table to edit or data to be lost anyway
+        delete ui->treeWidget->currentItem();
+    } else {
+        // Editing an old one
+
+        // Ask user wether he really wants to delete that column
+        QString msg = tr("Are you sure you want to delete the field '%1'?\nAll data currently stored in this field will be lost.").arg(ui->treeWidget->currentItem()->text(0));
+        if(QMessageBox::warning(this, QApplication::applicationName(), msg, QMessageBox::Yes | QMessageBox::Default, QMessageBox::No | QMessageBox::Escape) == QMessageBox::Yes)
+        {
+            if(!pdb->dropColumn(curTable, ui->treeWidget->currentItem()->text(0)))
+            {
+                QMessageBox::warning(0, QApplication::applicationName(), pdb->lastErrorMessage);
+            } else {
+                delete ui->treeWidget->currentItem();
+                modified = true;
+            }
+        }
+    }
+
+    checkInput();
+}
+
+void EditTableDialog::fieldSelectionChanged()
+{
+    ui->renameFieldButton->setEnabled(ui->treeWidget->selectionModel()->hasSelection());
+    ui->removeFieldButton->setEnabled(ui->treeWidget->selectionModel()->hasSelection());
+}