Initial commit

Lts/Plugins/ProjectionWorkstation/Gui/pws_vnc_viewer_dialog.h

@@ -0,0 +1,137 @@
+/**
+  * @RDE_HEADER@
+  * $Id$
+  * $HeadURL$
+  * $Author$
+  */
+#pragma once
+
+#include <LtsWidgets/lts_dialog.h>
+#include <Plugins/ProjectionWorkstation/Common/pws_rfb_protocol.h>
+#include <Plugins/ProjectionWorkstation/Common/pws_vnc_handler.h>
+
+#include <QMutex>
+#include <QOpenGLFramebufferObject>
+#include <QOpenGLTextureBlitter>
+#include <QOpenGLWidget>
+#include <QOpenGLFunctions>
+#include <QHostAddress>
+
+namespace Ui { class VncViewerDialog; }
+
+namespace ProjectionWorkstation
+{
+
+class VncRenderAreaWorker : public QObject
+{
+  Q_OBJECT
+public:
+  explicit VncRenderAreaWorker();
+
+  void setImageSize(QSize s);
+  void setScaledSize(QSize s);
+  QImage renderedImage() const;
+
+public Q_SLOTS:
+  void onRfbFrameBufferUpdate(const QVector<RfbProtocol::RfbRectangle> &rectangles);
+Q_SIGNALS:
+  void newImageAvailable();
+  void newScaleSizeAspectRatio(QSize s);
+private:
+  QImage m_renderedImage;  // store pixeldata
+  QImage m_scaledImage;
+  mutable QMutex m_mutex;
+  QSize m_scaledSize;
+  QSize m_scaledSizeAspectRatio;
+  LtsProjectionWorkstation::LOGGER_T m_logger;
+};
+
+class VncRenderArea : public QOpenGLWidget, protected QOpenGLFunctions
+{
+  Q_OBJECT
+public:
+  explicit VncRenderArea(const QSize remoteResolution, QWidget *parent);
+  ~VncRenderArea();
+  // QOpenGLWidget interface
+
+  void clear();
+
+  QSize frameSize() const { return m_frameSize; }
+  QSize scaledSize() const { return m_scaledSizeAspectRatio; }
+  void maybeResized();
+
+protected:
+  void initializeGL() override final;
+  void paintGL() override final;
+
+Q_SIGNALS:
+  void frameBufferUpdateReceived(const QVector<RfbProtocol::RfbRectangle> &rectangles);
+public slots:
+  void prepareRender();
+private:
+  void rebuildFbo(QSize newSize);
+private:
+  QThread *m_imageRenderThread;
+  VncRenderAreaWorker *m_renderAreaWorker;
+  QSize m_scaledSizeAspectRatio;
+  QSize m_frameSize;
+  QOpenGLFramebufferObject *m_fbo;
+  QOpenGLTextureBlitter m_blitter;
+
+  LtsProjectionWorkstation::LOGGER_T m_logger;
+};  // VncRenderArea
+
+
+class VncViewerDialog : public LtsWidgets::LtsDialog
+{
+  Q_OBJECT
+public:
+  VncViewerDialog(const QString &name, QWidget *parent = nullptr);
+  ~VncViewerDialog();
+
+  bool init(const QHostAddress &host, quint16 port, const QSize &remoteResolution);
+
+  // LtsDialog interface
+  void retranslate() override final;
+
+signals:
+  void disconnected();
+
+private slots:
+  void handleServerCuttext(const QString &cutText);
+  void slotOnDisconnected();
+  void onScrollRelease();
+  void onSlotConnected();
+
+protected:
+  // QWidget interface
+  void focusInEvent(QFocusEvent *event) override final;
+  void focusOutEvent(QFocusEvent *event) override final;
+  void mousePressEvent(QMouseEvent *event) override final;
+  void mouseReleaseEvent(QMouseEvent *event) override final;
+  void mouseMoveEvent(QMouseEvent *event) override final;
+  void keyPressEvent(QKeyEvent *event) override final;
+  void keyReleaseEvent(QKeyEvent *event) override final;
+  void wheelEvent(QWheelEvent *event) override final;
+  void resizeEvent(QResizeEvent *event) override final;
+  void showEvent(QShowEvent *event) override final;
+
+private:
+  QPoint mapMousePosition(const QPoint &point) const;
+
+  Ui::VncViewerDialog *m_ui;
+
+  VncHandler *m_handler;
+  VncRenderArea *m_renderArea;
+
+  quint8 m_mouseButtonMask;
+  QTimer *m_mouseScrollReleaseTimer;
+  QPoint m_lastScrollPos;
+  QSize m_remoteResolution;
+  QString m_name;
+  bool m_isConnected;
+
+  LtsProjectionWorkstation::LOGGER_T m_logger;
+};  // VncViewerDialog
+
+} // ProjectionWorkstation