first code, basic program works

1 files changed, 230 insertions, 0 deletions

diff --git a/productinventory.cpp b/productinventory.cpp
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+++ b/productinventory.cpp
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+/*
+ * productinventory.cpp is a part of ProductInventory
+ * An inventory system designed for makeup and related things
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "productinventory.h"
+#include "ui_productinventory.h"
+
+/*!
+ * constructor
+ * \param parent parent
+ */
+ProductInventory::ProductInventory(QWidget *parent) :
+	QMainWindow(parent),
+	ui(new Ui::ProductInventory)
+{
+	ui->setupUi(this);
+	/* database and statusbar init */
+	db = QSqlDatabase::addDatabase("QMYSQL");
+	conStatus = "Disconnected";
+	conColor = "red";
+	isConnected = false;
+	statusMessage(conStatus, conColor, 0);
+
+	/* make column headers resize to fit display */
+	ui->tableWidget->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
+
+	/* signal/slot connections */
+	connect(ui->statusBar, SIGNAL(messageChanged(const QString)), this, SLOT(statusChanged(QString)));
+
+	ui->tableWidget->hide();
+	headerLabels.append(QString("Brand"));
+	headerLabels.append(QString("Color"));
+	headerLabels.append(QString("Comment"));
+}
+
+/*!
+ * destructor
+ */
+ProductInventory::~ProductInventory()
+{
+	clearTables();
+	delete ui;
+}
+
+/*!
+ * write a message to the statusbar
+ * \param msg message to display
+ * \param color text color
+ * \param ms milliseconds to show message (0 = forever until overwritten)
+ */
+void
+ProductInventory::statusMessage(QString msg, QString color, int ms)
+{
+	ui->statusBar->setStyleSheet("color: " + color);
+	ui->statusBar->showMessage(msg, ms);
+}
+
+/*!
+ * overload for writing a message to the status bar without a color (defaults to black)
+ * \param msg message to display
+ * \param ms milliseconds to show message (0 = forever until overwritten)
+ */
+void
+ProductInventory::statusMessage(QString msg, int ms)
+{
+	statusMessage(msg, "black", ms);
+}
+
+/*!
+ * slot to receive signal when statusbar message changes
+ * \param msg new message
+ */
+void
+ProductInventory::statusChanged(QString msg)
+{
+	/*
+	 * if we have an empty message, display the connection status
+	 * indefinitely (empty message received when it is cleared)
+	 * BUG: called on hover in file menu
+	*/
+	if (msg == "")
+		statusMessage(conStatus, conColor, 0);
+}
+
+/*!
+ * slot to receive signal when the connect button is clicked
+ */
+void
+ProductInventory::on_connectButton_clicked()
+{
+	/*
+	 * we use the one button for both connect and disconnect,
+	 * so we need to keep track of our status in isConnected
+	 * change the button appropriately
+	 */
+	if (getConnectionStatus())
+	{
+		// TODO log
+		if (dbDisconnect())
+		{
+			qDebug() << "Disconnected from database";
+		}
+	}
+	else
+	{
+		db.setHostName(ui->HostInput->text());
+		db.setPort((ui->portInput->value()));
+		db.setUserName(ui->usernameInput->text());
+		db.setPassword(ui->passwordInput->text());
+		if (dbConnect())
+		{
+			// TODO log
+			qDebug() << "Connected to database";
+			clearTables();
+			populateInterface();
+		}
+	}
+}
+
+/*!
+ * called when window is resized
+ * \param event
+ */
+void
+ProductInventory::resizeEvent(QResizeEvent* event)
+{
+	QMainWindow::resizeEvent(event);
+	ui->tableWidget->resizeRowsToContents(); // not needed?
+	QList<QTableWidget *>::iterator i;
+	for (i = tables.begin(); i != tables.end(); i++)
+	{
+		(*i)->resizeRowsToContents();
+	}
+}
+
+void ProductInventory::on_mustHaveImagesCheckBox_clicked()
+{
+	ui->mustNotHaveImagesCheckBox->setChecked(false);
+}
+
+void ProductInventory::on_mustNotHaveImagesCheckBox_clicked()
+{
+	ui->mustHaveImagesCheckBox->setChecked(false);
+}
+
+/*!
+ * add a single item (row) to the table
+ * \param table	the table object to add the item to
+ * \param values QList<QString> with values to add to the new row
+ */
+void
+ProductInventory::addItemToTable(QTableWidget *table, QList<QString> *values)
+{
+	QList<QString>::iterator i;
+	int col = 0;
+	int row = ui->tableWidget->rowCount();
+	table->insertRow(row);
+	for (i = values->begin(); i != values->end(); i++)
+	{
+		QTableWidgetItem *test1 = new QTableWidgetItem(*i);
+		table->setItem(row, col, test1);
+		col++;
+	}
+}
+
+/*!
+ * clear the default table and all other added tables
+ * by iterating through the tables list
+ */
+void
+ProductInventory::clearTables()
+{
+	qDebug() << "clearing table and deleting items";
+	ui->tableWidget->setRowCount(0); // automagically deletes items
+	QList<QTableWidget *>::iterator i;
+	for (i = tables.begin(); i != tables.end(); i++)
+	{
+		(*i)->setRowCount(0);
+		(*i)->hide();
+		delete (*i);
+		tables.erase(i);
+	}
+	QList<QLabel *>::iterator l;
+	for (l = labels.begin(); l != labels.end(); l++)
+	{
+		(*l)->hide();
+		labels.erase(l);
+	}
+}
+
+/*!
+ * create a QTableWidget, set some properties, append to tables list
+ * \return index into tables or -1 on error
+ */
+int
+ProductInventory::createTable(QString category)
+{
+	QTableWidget *table = new QTableWidget;
+	if (table == nullptr)
+		return -1;
+	table->setMinimumHeight(100);
+	table->setColumnCount(3);
+	table->horizontalHeader()->setSectionResizeMode(QHeaderView::Stretch);
+	table->setHorizontalHeaderLabels(headerLabels);
+	table->verticalHeader()->hide();
+	QLabel *label = new QLabel(category);
+	if (label == nullptr)
+		return -1;
+	labels.append(label);
+	QFont f( "Arial", 10, QFont::Bold);
+	label->setFont(f);
+	ui->scrollArea->widget()->layout()->addWidget(label);
+	ui->scrollArea->widget()->layout()->addWidget(table);
+	tables.append(table);
+	return tables.size()-1;
+}