shareboard.h

   1 #ifndef __SHAREBOARD_H__
   2 #define __SHAREBOARD_H__
   3
   4 #include <QWidget>
   5 #include <QPointF>
   6 #include <QDateTime>
   7 #include <QMap>
   8
   9 class QStackedLayout;
  10 class ConnectWidget;
  11 class ShareboardCanvas;
  12
  13 class Action;
  14 typedef QList<Action*> History;
  15
  16 class Shareboard : public QWidget {
  17         Q_OBJECT
  18         public:
  19                 Shareboard(QWidget* parent = 0);
  20                 ~Shareboard();
  21                 QImage view();
  22                 int getDrawState();
  23
  24         public slots:
  25                 void handleMouseMoved(QPointF pos);
  26                 void handleSegmentDrawn(QPointF start, QPointF end);
  27                 void handleInsertImage(QPointF pos);
  28                 void postAction(Action* action);
  29                 void postLocalAction(Action* action);
  30                 void switchToBoard();
  31                 void switchToPrompt();
  32                 void setUserID(int id);
  33                 void jumpToIndex(int index);
  34                 //void jumpToTime(QDateTime time);
  35                 void setDrawState(int newstate);
  36                 void setInsertImage(QImage newimage);
  37
  38         signals:
  39                 void rangeChanged(int max);
  40                 void indexChanged(int index);
  41                 void connectToServer(QString, QString);
  42                 void actionHappened(Action* action);
  43
  44         private:
  45                 QStackedLayout* layout;
  46                 ConnectWidget* prompt;
  47                 ShareboardCanvas* canvas;
  48                 History history;
  49                 History localHistory;
  50                 int userID;
  51                 int drawState; // if > 0, line width.  If < 0, eraser size.  If == 0, image tool.
  52                 QImage insertImage;
  53                 // These items represent the present state of the view.
  54                 QDateTime viewTime;
  55                 QImage viewImage;
  56                 int viewIndex; // The index of the first action we haven't applied.
  57                 QMap<int, QPointF> viewCursors;
  58                 QMap<int, QString> viewUsers;
  59
  60 //              QPixmap renderAtTime(QDateTime time);
  61 //              QPixmap renderOneChange();
  62         friend class ShareboardCanvas;
  63 };
  64
  65 #endif // __SHAREBOARD_H__