WebWord
A word processor example demonstrating the Turtle GUI virtualization package.
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
#ifdef flagTURTLEGUI
#include <Turtle/Turtle.h>
#else
#include <CtrlLib/CtrlLib.h>
#endif
#include <RichEdit/RichEdit.h>
#include <PdfDraw/PdfDraw.h>
namespace Upp {
class WebWord : public TopWindow {
public:
typedef WebWord CLASSNAME;
WebWord();
void ShowInfo();
RichEditWithToolBar editor;
StatusBar statusbar;
};
}
#endif
main.cpp
#include "WebWord.h"
using namespace Upp;
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 flagTURTLEGUI
int secs = GetSysTime() - TurtleServer::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(TurtleServer::stat_data_send);
if(secs)
s << ", average bandwidth " << FormatSize(TurtleServer::stat_data_send / secs) << "/s";
s << ", actual bandwidth " << FormatSize(TurtleServer::stat_data_send - sent_prev);
s << ", putimage " << TurtleServer::stat_putimage;
s << ", putrect " << TurtleServer::stat_putrect;
s << ", setimage " << TurtleServer::stat_setimage << " len " << FormatSize(TurtleServer::stat_setimage_len);
s << ", roundtrip " << TurtleServer::stat_roundtrip_ms << " ms";
s << ", client " << TurtleServer::stat_client_ms << " ms";
#ifdef PLATFORM_POSIX
s << ", cpu time " << int((double) clock() / CLOCKS_PER_SEC * 1000) << " ms";
#endif
sent_prev = TurtleServer::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 AppMainLoop()
{
// "Main" stuff should go in here...
WebWord().Run();
}
#ifdef flagTURTLEGUI
CONSOLE_APP_MAIN
{
#ifdef _DEBUG
TurtleServer::DebugMode();
#endif
// MemoryLimitKb(100000000); // Can aid preventing DDoS attacks.
TurtleServer guiserver;
guiserver.Host("localhost");
guiserver.Port(8888);
guiserver.MaxConnections(100);
RunTurtleGui(guiserver, AppMainLoop);
}
#else
GUI_APP_MAIN
{
AppMainLoop();
}
#endif
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