WebWord
Package demonstrating TURTLE (thin JavaScript client to U++ based GUI server application)
Description
The reference shows usage of TURTLE. TURTLE is a thin JavaScript client to U++ based GUI server application. The page is by default available on following address: 127.0.0.1:8088. Of course firstly you need to compile the project and execute it.
WebWord can be launch in any browser that supports HTML5 and implements WebSocket protocol. The simplest examples of such browser are the latest versions of Firefox or Chrom.
Result
WebWord.h
#ifndef _WebWord_WebWord_h_
#define _WebWord_WebWord_h_
#include <RichEdit/RichEdit.h>
#include <PdfDraw/PdfDraw.h>
using namespace Upp;
struct WebWord : public TopWindow {
public:
RichEditWithToolBar editor;
StatusBar statusbar;
void ShowInfo();
public:
typedef WebWord CLASSNAME;
WebWord();
};
#endif
WebWord.cpp
#include "WebWord.h"
String FormatSize(int64 n)
{
if(n < 10000)
return Format("%d B", n);
else
if(n < 10000 * 1024)
return Format("%d.%d KB", n >> 10, (n & 1023) / 103);
else
if(n < I64(10000000) * 1024)
return Format("%d.%d MB", n >> 20, (n & 1023) / 103);
else
return Format("%d.%d GB", n >> 30, (n & 1023) / 103);
}
void WebWord::ShowInfo()
{
String s;
s << "Mem " << MemoryUsedKb() << " KB";
static int sent_prev;
#ifdef PLATFORM_TURTLE
int secs = GetSysTime() - Ctrl::stat_started;
Time tm = Time(1, 1, 1, 0, 0, 0) + secs;
s << ", uptime " << Format("%d:%0d:%02d:%02d", tm - Date(1, 1, 1), tm.hour, tm.minute, tm.second);
s << ", data sent " << FormatSize(Ctrl::stat_data_send);
if(secs)
s << ", average bandwidth " << FormatSize(Ctrl::stat_data_send / secs) << "/s";
s << ", actual bandwidth " << FormatSize(Ctrl::stat_data_send - sent_prev);
s << ", putimage " << Ctrl::stat_putimage;
s << ", putrect " << Ctrl::stat_putrect;
s << ", setimage " << Ctrl::stat_setimage << " len " << FormatSize(Ctrl::stat_setimage_len);
s << ", roundtrip " << Ctrl::stat_roundtrip_ms << " ms";
s << ", client " << Ctrl::stat_client_ms << " ms";
#ifdef PLATFORM_POSIX
s << ", cpu time " << int((double) clock() / CLOCKS_PER_SEC * 1000) << " ms";
#endif
sent_prev = Ctrl::stat_data_send;
statusbar.Set(s);
#endif
}
WebWord::WebWord()
{
AddFrame(statusbar);
Add(editor.SizePos());
Sizeable().Zoomable();
// FrameLess();
Maximize();
Title("WebWord");
Icon(CtrlImg::File());
editor.ClearModify();
ActiveFocus(editor);
SetTimeCallback(-1000, THISBACK(ShowInfo));
}
void Main()
{
WebWord w;
w.Run();
}
#ifdef flagTURTLE
CONSOLE_APP_MAIN
{
StdLogSetup(LOG_COUT|LOG_FILE);
MemoryLimitKb(100000000); // Perhaps a good idea to set a limit to prevent DDoS
Ctrl::connection_limit = 50; // Maximum number of concurrent users (preventing DDoS)
#ifdef _DEBUG
Ctrl::debugmode = true; // Only single session in debug (no forking)
#endif
// Ctrl::WhenDisconnect = callback(FinishApp); // Use this to gracefully exit (save data?)
#ifndef _DEBUG
Ctrl::host = "myserverhost.org";
#endif
if(Ctrl::StartSession()) {
Main();
Ctrl::EndSession();
}
LOG("Session Finished");
}
#else
GUI_APP_MAIN
{
Main();
}
#endif
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