action.cpp

   1 #include "action.h"
   2 #include <QDataStream>
   3 #include <QByteArray>
   4 #include <QBuffer>
   5 #include "base64.h"
   6
   7 Action::Action() {
   8         type = INVALID;
   9         mesgID = 0;
  10         userID = 0;
  11         timestamp = QDateTime::currentDateTime();
  12 }
  13
  14 Action::Action(Type t) {
  15         type = t;
  16         mesgID = 0;
  17         userID = 0;
  18         timestamp = QDateTime::currentDateTime();
  19 }
  20
  21 Action::~Action() {
  22 }
  23
  24 //
  25 UserJoinAction::UserJoinAction() : Action(Action::UserJoin) {
  26 }
  27 UserJoinAction::~UserJoinAction() {
  28 }
  29
  30 //
  31 UserPartAction::UserPartAction() : Action(Action::UserPart) {
  32 }
  33 UserPartAction::~UserPartAction() {
  34 }
  35
  36 //
  37 MouseMoveAction::MouseMoveAction() : Action(Action::MouseMove) {
  38 }
  39 MouseMoveAction::~MouseMoveAction() {
  40 }
  41
  42 //
  43 DrawLineAction::DrawLineAction() : Action(Action::DrawLine) {
  44         color = Qt::black;
  45         width = 1;
  46 }
  47 DrawLineAction::~DrawLineAction() {
  48 }
  49
  50 AddImageAction::AddImageAction() : Action(Action::AddImage) {
  51 }
  52 AddImageAction::~AddImageAction() {
  53 }
  54
  55 UserChatAction::UserChatAction() : Action(Action::UserChat) {
  56 }
  57 UserChatAction::~UserChatAction() {
  58 }
  59
  60 ClearBoardAction::ClearBoardAction() : Action(Action::ClearBoard) {
  61 }
  62 ClearBoardAction::~ClearBoardAction() {
  63 }
  64
  65 QTextStream& operator<<(QTextStream& out, const Action& action) {
  66         out << "0 " << action.userID << " " << action.timestamp.toString("yyyy-MM-ddThh:mm:ss.zzz") << " " << static_cast<quint16>(action.type) ; // mesgID, userID, timestamp, mesgType
  67         switch(action.type) {
  68                 case Action::INVALID:
  69                 case Action::UserSynced:
  70                         break;
  71                 case Action::UserJoin:
  72                         {
  73                                 const UserJoinAction* a = static_cast<const UserJoinAction*>(&action);
  74                                 out << " " << a->username;
  75                         } break;
  76                 case Action::UserPart:
  77                         break; // UserPart doesn't have any special data
  78                 case Action::MouseMove:
  79                         {
  80                                 const MouseMoveAction* a = static_cast<const MouseMoveAction*>(&action);
  81                                 out << " " << a->pos.x() << " " << a->pos.y();
  82                         } break;
  83                 case Action::DrawLine:
  84                         {
  85                                 const DrawLineAction* a = static_cast<const DrawLineAction*>(&action);
  86                                 const QColor& c = a->color;
  87                                 out << " " << c.red() << " " << c.green() << " " << c.blue() << " " << a->width;
  88                                 foreach(QPointF p, a->points) {
  89                                         out << " " << p.x() << " " << p.y();
  90                                 }
  91                         } break;
  92                 case Action::AddImage:
  93                         {
  94                                 const AddImageAction* a = static_cast<const AddImageAction*>(&action);
  95                                 out << " " << a->topLeft.x() << " " << a->topLeft.y();
  96                                 QByteArray ba;
  97                                 QBuffer buffer(&ba);
  98                                 buffer.open(QIODevice::WriteOnly);
  99                                 a->image.save(&buffer, "PNG");
 100                                 buffer.close();
 101                                 out << toBase64(ba);
 102                         } break;
 103                 case Action::UserChat:
 104                         {
 105                                 const UserChatAction* a = static_cast<const UserChatAction*>(&action);
 106                                 out << " " << a->text;
 107                         } break;
 108                 case Action::ClearBoard:
 109                         break; // No special data for ClearBoard
 110         }
 111         out << "\n";
 112         return out;
 113 }
 114
 115 // operator>> can't be implemented in this manner since we need to handle
 116 // different types and operator>> works on a reference to the base class.
 117 // Thus, I'm pushing this sort of functionality into the connection manager. - Drew
 118