Qt-interest Archive, February 2008
QtScript - hooking into "print"
Message 1 in thread
The QtScript docs show numerous examples that use print() to print
things, but where does the output go? How do I tie into that so I can
send the results to my QTextEdit-based console? I was looking for a
signal to connect to but there doesn't seem to be one. What am I missing?
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Message 2 in thread
Not that it's "the right way" ...
but I created my own print function:
void
IqtScriptKit::setupPrint()
{
// make "print" print to console not terminal.
// Map existing print function to terminalPrint
QScriptValue rtn;
QString toRun("terminalPrint = print;");
d_inScript = true;
rtn = d_scriptEngine->evaluate(/*program*/ toRun,
/*fileName*/ "<builtIn>",
/*lineNumber*/ 0);
d_inScript = false;
if ( d_scriptEngine->hasUncaughtException() ) {
d_console.statusOut(IqtErr) << "IqtScriptKit::setupPrint():" << endl
<< "Unexpected exception" << endl;
d_console.reportBacktrace(toRun,rtn);
} else {
if ( 0 ) {
d_console.statusOut(IqtDebug)
<< "IqtScriptKit::setupPrint():" << endl
<< "terminalPrint assign returns " << rtn.toString() <<
endl;
}
}
// put our print function into script env:
addCplusplusFunc("print",IqtScriptKit::consolePrint);
}
//static
QScriptValue
IqtScriptKit::consolePrint(QScriptContext* context,QScriptEngine*
/*engine*/)
{
QScriptValue arg = context->argument(0);
if (!arg.isString()) {
return context->throwError(
QScriptContext::TypeError,
QString::fromLatin1("print(): expected string argument"));
}
QString toPrint = arg.toString();
IqtConsole::statusOut(IqtInfo) << toPrint << endl;
IqtConsole::statusOut(IqtInfo).flush();
return QScriptValue();
}
Paul Miller wrote:
> The QtScript docs show numerous examples that use print() to print
> things, but where does the output go? How do I tie into that so I can
> send the results to my QTextEdit-based console? I was looking for a
> signal to connect to but there doesn't seem to be one. What am I missing?
>
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Message 3 in thread
Peter Hackett wrote:
> Not that it's "the right way" ...
> but I created my own print function:
>
Thanks Peter. I'm surprised something like this isn't part of QtScript.
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Message 4 in thread
http://lists.trolltech.com/qt-interest/2008-02/thread00515-0.html
On Tue, 26 Feb 2008 23:41:30 +0300, Paul Miller <paul@xxxxxxxxxx> wrote:
> The QtScript docs show numerous examples that use print() to print
> things, but where does the output go? How do I tie into that so I can
> send the results to my QTextEdit-based console? I was looking for a
> signal to connect to but there doesn't seem to be one. What am I missing?
--
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Message 5 in thread
Constantin Makshin wrote:
> http://lists.trolltech.com/qt-interest/2008-02/thread00515-0.html
>
> On Tue, 26 Feb 2008 23:41:30 +0300, Paul Miller <paul@xxxxxxxxxx> wrote:
>> The QtScript docs show numerous examples that use print() to print
>> things, but where does the output go? How do I tie into that so I can
>> send the results to my QTextEdit-based console? I was looking for a
>> signal to connect to but there doesn't seem to be one. What am I missing?
Aha! I knew it had to be "simple". Thanks for the pointer. I'm usually
pretty good at my google queries but my efforts didn't turn that one up.
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