gui: move source files to "src" subdirectory

gui/src/MultiSelect.cpp

@@ -0,0 +1,150 @@
+/**
+ * MIT License
+ *
+ * Copyright (c) 2020 EOS Sw/eden
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in all
+ * copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#include <QDialog>
+#include <QLayout>
+#include <QMouseEvent>
+#include <QListWidget>
+#include <QListWidgetItem>
+#include "MultiSelect.hpp"
+
+MultiSelect::MultiSelect(const QString& text, bool user_can_add, QWidget *parent) :
+QPushButton		(text + ": none", parent)
+{
+	QPushButton* btn;
+	QVBoxLayout* layout;
+
+	m_prefix = text;
+
+	// Dialog
+	m_dialog = new QDialog(this);
+
+	// Dialog Widgets
+	m_list = new QListWidget();
+	btn = new QPushButton("Select");
+
+	// Dialog layout
+	layout = new QVBoxLayout(m_dialog);
+	layout->addWidget(m_list);
+	layout->addWidget(btn);
+
+	// Connections
+	QObject::connect(btn, SIGNAL(clicked()), m_dialog, SLOT(accept()));
+	QObject::connect(m_dialog, SIGNAL(accepted()), this, SLOT(selectionConfirmed()));
+	QObject::connect(m_list, SIGNAL(itemClicked(QListWidgetItem*)), this, SLOT(listItemClicked(QListWidgetItem*)));
+
+	// Configured to let users add items. provide button and signal.
+	if (user_can_add) {
+		btn = new QPushButton("Add");
+		layout->addWidget(btn);
+		QObject::connect(btn, SIGNAL(clicked()), this, SLOT(addBtnClicked()));
+	}
+}
+
+void MultiSelect::addItem(const QString& text, bool checked)
+{
+	QListWidgetItem* item = new QListWidgetItem(text, m_list);
+	item->setFlags(Qt::ItemIsEnabled);
+	item->setCheckState(checked ? Qt::Checked : Qt::Unchecked);
+}
+
+void MultiSelect::addItems(const QStringList& list, bool checked)
+{
+	QStringList::const_iterator it;
+
+	for(it = list.cbegin(); it != list.cend(); it++) {
+		addItem(*it, checked);
+	}
+}
+
+void MultiSelect::clearItems()
+{
+	m_list->clear();
+}
+
+QStringList MultiSelect::getSelectedItems() const
+{
+	QListWidgetItem* item;
+	QStringList ret;
+
+	// Cannot use m_list->selectedItems() as that function only fetches
+	// _selected_ and not _checked_ items (there is a difference).
+	for(int i = 0; i < m_list->count(); i++) {
+		item = m_list->item(i);
+		// Include in list if checked.
+		if (item->checkState() == Qt::Checked) {
+			ret << item->text();
+		}
+    }
+	return ret;
+}
+
+void MultiSelect::selectionConfirmed()
+{
+	QStringList selected = getSelectedItems();
+
+	// Update the text for this widget to
+	// reflect the selected objects.
+	QString txt = m_prefix + ": ";
+
+	// Have more than one item. show number of items.
+	if (selected.count() > 1) {
+		txt += QString::number(selected.count()) + " selected";
+	}
+	// Just one, we can show the text.
+	else if (selected.count() == 1) {
+		txt += selected.at(0);
+	}
+	else {
+		txt += "none";
+	}
+
+	setText(txt);
+
+	// Emit the selectionChanged signal with the updated list
+	emit selectionChanged(selected);
+}
+
+void MultiSelect::listItemClicked(QListWidgetItem *item)
+{
+	// toggle state when user clicks.
+	bool checked = item->checkState() == Qt::Checked;
+	item->setCheckState(checked ? Qt::Unchecked : Qt::Checked);
+}
+
+void MultiSelect::addBtnClicked()
+{
+	// Just emit addNewItem event.
+	emit addNewItem();
+}
+
+void MultiSelect::mousePressEvent(QMouseEvent *event)
+{
+    if (event->button() == Qt::LeftButton) {
+        // Show select dialog.
+		m_dialog->show();
+    } else {
+        // pass on other buttons to base class
+        QPushButton::mousePressEvent(event);
+    }
+}