tools/qvfb/qvfbprotocol.h
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     1 /****************************************************************************
       
     2 **
       
     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
       
     4 ** All rights reserved.
       
     5 ** Contact: Nokia Corporation (qt-info@nokia.com)
       
     6 **
       
     7 ** This file is part of the tools applications of the Qt Toolkit.
       
     8 **
       
     9 ** $QT_BEGIN_LICENSE:LGPL$
       
    10 ** No Commercial Usage
       
    11 ** This file contains pre-release code and may not be distributed.
       
    12 ** You may use this file in accordance with the terms and conditions
       
    13 ** contained in the Technology Preview License Agreement accompanying
       
    14 ** this package.
       
    15 **
       
    16 ** GNU Lesser General Public License Usage
       
    17 ** Alternatively, this file may be used under the terms of the GNU Lesser
       
    18 ** General Public License version 2.1 as published by the Free Software
       
    19 ** Foundation and appearing in the file LICENSE.LGPL included in the
       
    20 ** packaging of this file.  Please review the following information to
       
    21 ** ensure the GNU Lesser General Public License version 2.1 requirements
       
    22 ** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
       
    23 **
       
    24 ** In addition, as a special exception, Nokia gives you certain additional
       
    25 ** rights.  These rights are described in the Nokia Qt LGPL Exception
       
    26 ** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
       
    27 **
       
    28 ** If you have questions regarding the use of this file, please contact
       
    29 ** Nokia at qt-info@nokia.com.
       
    30 **
       
    31 **
       
    32 **
       
    33 **
       
    34 **
       
    35 **
       
    36 **
       
    37 **
       
    38 ** $QT_END_LICENSE$
       
    39 **
       
    40 ****************************************************************************/
       
    41 #ifndef QVFBPROTOCOL_H
       
    42 #define QVFBPROTOCOL_H
       
    43 
       
    44 #include <QImage>
       
    45 #include <QVector>
       
    46 #include <QColor>
       
    47 
       
    48 QT_BEGIN_NAMESPACE
       
    49 
       
    50 class QVFbKeyProtocol;
       
    51 class QVFbMouseProtocol;
       
    52 class QVFbViewProtocol : public QObject
       
    53 {
       
    54     Q_OBJECT
       
    55 public:
       
    56     QVFbViewProtocol(int display_id, QObject *parent = 0);
       
    57 
       
    58     virtual ~QVFbViewProtocol();
       
    59 
       
    60     int id() const { return mDisplayId; }
       
    61 
       
    62     void sendKeyboardData(QString unicode, int keycode,
       
    63             int modifiers, bool press, bool repeat);
       
    64     void sendMouseData(const QPoint &pos, int buttons, int wheel);
       
    65 
       
    66     virtual int width() const = 0;
       
    67     virtual int height() const = 0;
       
    68     virtual int depth() const = 0;
       
    69     virtual int linestep() const = 0;
       
    70     virtual int  numcols() const = 0;
       
    71     virtual QVector<QRgb> clut() const = 0;
       
    72     virtual unsigned char *data() const = 0;
       
    73     virtual int brightness() const = 0;
       
    74 
       
    75     virtual void setRate(int) {}
       
    76 public slots:
       
    77     virtual void flushChanges();
       
    78 
       
    79 signals:
       
    80     void displayDataChanged(const QRect &);
       
    81     void displayEmbedRequested(WId windowId);
       
    82 
       
    83 protected:
       
    84     virtual QVFbKeyProtocol *keyHandler() const = 0;
       
    85     virtual QVFbMouseProtocol *mouseHandler() const = 0;
       
    86 
       
    87 private:
       
    88     int mDisplayId;
       
    89 };
       
    90 
       
    91 class QVFbKeyProtocol
       
    92 {
       
    93 public:
       
    94     QVFbKeyProtocol(int display_id) : mDisplayId(display_id) {}
       
    95     virtual ~QVFbKeyProtocol() {}
       
    96 
       
    97     int id() const { return mDisplayId; }
       
    98 
       
    99     virtual void sendKeyboardData(QString unicode, int keycode,
       
   100             int modifiers, bool press, bool repeat) = 0;
       
   101 
       
   102 private:
       
   103     int mDisplayId;
       
   104 };
       
   105 
       
   106 class QVFbMouseProtocol
       
   107 {
       
   108 public:
       
   109     QVFbMouseProtocol(int display_id) : mDisplayId(display_id) {}
       
   110     virtual ~QVFbMouseProtocol() {}
       
   111 
       
   112     int id() const { return mDisplayId; }
       
   113 
       
   114     virtual void sendMouseData(const QPoint &pos, int buttons, int wheel) = 0;
       
   115 
       
   116 private:
       
   117     int mDisplayId;
       
   118 };
       
   119 
       
   120 /* since there is very little variation in input protocols defaults are
       
   121    provided */
       
   122 
       
   123 class QVFbKeyPipeProtocol : public QVFbKeyProtocol
       
   124 {
       
   125 public:
       
   126     QVFbKeyPipeProtocol(int display_id);
       
   127     ~QVFbKeyPipeProtocol();
       
   128 
       
   129     void sendKeyboardData(QString unicode, int keycode,
       
   130             int modifiers, bool press, bool repeat);
       
   131 
       
   132     QString pipeName() const { return fileName; }
       
   133 private:
       
   134     int fd;
       
   135     QString fileName;
       
   136 };
       
   137 
       
   138 class QVFbMousePipe: public QVFbMouseProtocol
       
   139 {
       
   140 public:
       
   141     QVFbMousePipe(int display_id);
       
   142     ~QVFbMousePipe();
       
   143 
       
   144     void sendMouseData(const QPoint &pos, int buttons, int wheel);
       
   145 
       
   146     QString pipeName() const { return fileName; }
       
   147 protected:
       
   148     int fd;
       
   149     QString fileName;
       
   150 };
       
   151 
       
   152 class QTimer;
       
   153 class QVFbMouseLinuxTP : public QObject, public QVFbMousePipe
       
   154 {
       
   155     Q_OBJECT
       
   156 public:
       
   157     QVFbMouseLinuxTP(int display_id);
       
   158     ~QVFbMouseLinuxTP();
       
   159 
       
   160     void sendMouseData(const QPoint &pos, int buttons, int wheel);
       
   161 
       
   162 protected slots:
       
   163     void repeatLastPress();
       
   164 
       
   165 protected:
       
   166     void writeToPipe(const QPoint &pos, ushort pressure);
       
   167     QPoint lastPos;
       
   168     QTimer *repeater;
       
   169 };
       
   170 
       
   171 QT_END_NAMESPACE
       
   172 
       
   173 #endif