mirror of
https://github.com/kasmtech/KasmVNC.git
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160 lines
4.4 KiB
C
160 lines
4.4 KiB
C
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/* Copyright (C) 2002-2005 RealVNC Ltd. All Rights Reserved.
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*
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* This is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This software is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this software; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
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* USA.
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*/
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// -=- SDisplay.h
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//
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// The SDisplay class encapsulates a system display.
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#ifndef __RFB_SDISPLAY_H__
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#define __RFB_SDISPLAY_H__
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#include <rfb/SDesktop.h>
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#include <rfb/UpdateTracker.h>
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#include <rfb/Configuration.h>
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#include <rfb_win32/Handle.h>
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#include <rfb_win32/EventManager.h>
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#include <rfb_win32/SInput.h>
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#include <rfb_win32/Clipboard.h>
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#include <rfb_win32/CleanDesktop.h>
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#include <rfb_win32/WMCursor.h>
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#include <rfb_win32/WMNotifier.h>
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#include <rfb_win32/DeviceFrameBuffer.h>
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#include <rfb_win32/DeviceContext.h>
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namespace rfb {
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namespace win32 {
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//
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// -=- SDisplay
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//
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class SDisplayCore {
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public:
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virtual ~SDisplayCore() {};
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virtual void setScreenRect(const Rect& screenRect_) = 0;
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virtual void flushUpdates() = 0;
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virtual const char* methodName() const = 0;
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};
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class SDisplay : public SDesktop,
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WMMonitor::Notifier,
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Clipboard::Notifier,
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public EventHandler
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{
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public:
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SDisplay();
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virtual ~SDisplay();
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// -=- SDesktop interface
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virtual void start(VNCServer* vs);
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virtual void stop();
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virtual void pointerEvent(const Point& pos, int buttonmask);
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virtual void keyEvent(rdr::U32 keysym, rdr::U32 keycode, bool down);
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virtual void clientCutText(const char* str, int len);
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// -=- Clipboard
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virtual void notifyClipboardChanged(const char* text, int len);
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// -=- Display events
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virtual void notifyDisplayEvent(WMMonitor::Notifier::DisplayEventType evt);
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// -=- EventHandler interface
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HANDLE getUpdateEvent() {return updateEvent;}
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virtual void processEvent(HANDLE event);
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// -=- Notification of whether or not SDisplay is started
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void setStatusLocation(bool* status) {statusLocation = status;}
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static IntParameter updateMethod;
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static BoolParameter disableLocalInputs;
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static StringParameter disconnectAction;
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static BoolParameter removeWallpaper;
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static BoolParameter disableEffects;
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// -=- Use by VNC Config to determine whether hooks are available
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static bool areHooksAvailable();
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protected:
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bool isRestartRequired();
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void startCore();
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void stopCore();
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void restartCore();
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void recreatePixelBuffer(bool force=false);
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bool flushChangeTracker(); // true if flushed, false if empty
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bool checkLedState();
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VNCServer* server;
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// -=- Display pixel buffer
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DeviceFrameBuffer* pb;
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DeviceContext* device;
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// -=- The coordinates of Window's entire virtual Screen
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Rect screenRect;
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// -=- All changes are collected in UN-CLIPPED Display coords and merged
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// When they are to be flushed to the VNCServer, they are changed
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// to server coords and clipped appropriately.
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SimpleUpdateTracker updates;
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ClippingUpdateTracker clipper;
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// -=- Internal SDisplay implementation
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SDisplayCore* core;
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int updateMethod_;
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// Inputs
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SPointer* ptr;
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SKeyboard* kbd;
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Clipboard* clipboard;
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WMBlockInput* inputs;
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// Desktop state
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WMMonitor* monitor;
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// Desktop optimisation
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CleanDesktop* cleanDesktop;
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bool isWallpaperRemoved;
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bool areEffectsDisabled;
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// Cursor
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WMCursor* cursor;
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WMCursor::Info old_cursor;
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Region old_cursor_region;
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Point cursor_renderpos;
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// -=- Event signalled to trigger an update to be flushed
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Handle updateEvent;
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// -=- Where to write the active/inactive indicator to
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bool* statusLocation;
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unsigned ledState;
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};
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}
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}
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#endif // __RFB_SDISPLAY_H__
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