refs #452 overlay messages (allows to display overlay messages in a widget)

* the overlay widget itself
* a QFrame derived class allowing to display such widgets as overlay

src/blackgui/overlaymessages.cpp

@@ -0,0 +1,124 @@
+/* Copyright (C) 2015
+ * swift project Community / Contributors
+ *
+ * This file is part of swift project. It is subject to the license terms in the LICENSE file found in the top-level
+ * directory of this distribution and at http://www.swift-project.org/license.html. No part of swift project,
+ * including this file, may be copied, modified, propagated, or distributed except according to the terms
+ * contained in the LICENSE file.
+ */
+
+#include "blackgui/overlaymessages.h"
+#include "blackgui/stylesheetutility.h"
+#include "ui_overlaymessages.h"
+#include <QKeyEvent>
+
+using namespace BlackGui::Models;
+
+namespace BlackGui
+{
+    COverlayMessages::COverlayMessages(int w, int h, QWidget *parent) :
+        QFrame(parent),
+        ui(new Ui::COverlayMessages)
+    {
+        this->init(w, h);
+    }
+
+    COverlayMessages::COverlayMessages(const QString &headerText, int w, int h, QWidget *parent) :
+        QFrame(parent),
+        ui(new Ui::COverlayMessages),
+        m_header(headerText)
+    {
+        this->init(w, h);
+    }
+
+    void COverlayMessages::init(int w, int h)
+    {
+        ui->setupUi(this);
+        resize(w, h);
+        this->setAutoFillBackground(true);
+        this->ui->tvp_StatusMessages->setMode(CStatusMessageListModel::Simplified);
+        connect(this->ui->tb_Close, &QToolButton::released, this, &COverlayMessages::close);
+        m_autoCloseTimer.setObjectName(objectName() + ":autoCloseTimer");
+        connect(&m_autoCloseTimer, &QTimer::timeout, this, &COverlayMessages::close);
+    }
+
+    void COverlayMessages::setHeader(const QString &header)
+    {
+        if (m_header.isEmpty())
+        {
+            ui->lbl_Header->setText(header);
+        }
+        else
+        {
+            ui->lbl_Header->setText(m_header);
+        }
+    }
+
+    COverlayMessages::~COverlayMessages()
+    {}
+
+    void COverlayMessages::showMessages(const BlackMisc::CStatusMessageList &messages, int timeOutMs)
+    {
+        if (messages.isEmpty()) { return; }
+        this->setModeToMessages();
+        this->ui->tvp_StatusMessages->updateContainer(messages);
+        this->display(timeOutMs);
+    }
+
+    void COverlayMessages::showMessage(const BlackMisc::CStatusMessage &message, int timeOutMs)
+    {
+        if (message.isEmpty()) { return; }
+        this->setModeToMessage();
+        this->ui->form_StatusMessage->setValue(message);
+        this->display(timeOutMs);
+    }
+
+    void COverlayMessages::setModeToMessages()
+    {
+        this->ui->sw_StatusMessagesComponent->setCurrentWidget(this->ui->pg_StatusMessages);
+        this->setHeader("Messages");
+    }
+
+    void COverlayMessages::setModeToMessage()
+    {
+        this->ui->sw_StatusMessagesComponent->setCurrentWidget(this->ui->pg_StatusMessage);
+        this->setHeader("Message");
+    }
+
+    void COverlayMessages::keyPressEvent(QKeyEvent *event)
+    {
+        if (event->key() ==  Qt::Key_Escape)
+        {
+            this->close();
+            event->setAccepted(true);
+        }
+    }
+
+    void COverlayMessages::close()
+    {
+        this->hide();
+        this->setEnabled(false);
+    }
+
+    void COverlayMessages::display(int timeOutMs)
+    {
+        this->show();
+        this->setEnabled(true);
+        if (timeOutMs > 250)
+        {
+            m_autoCloseTimer.start(timeOutMs);
+        }
+        else
+        {
+            m_autoCloseTimer.stop();
+        }
+    }
+
+    void BlackGui::COverlayMessages::paintEvent(QPaintEvent *event)
+    {
+        bool s = CStyleSheetUtility::useStyleSheetInDerivedWidget(this, QStyle::PE_Widget);
+        if (s) { return; }
+        QFrame::paintEvent(event);
+    }
+
+} // ns