Calculator::Calculator(QWidget *parent) :
QWidget(parent),
ui(new Ui::Calculator)
{
ui->setupUi(this);
pastNumber = 0;
currentNumber = ui->lcd->value();
state = '\0';
point = false;
in = false;
count = 0;
connect(ui->button0, SIGNAL(clicked()),
this, SLOT(push0()));
connect(ui->button1, SIGNAL(clicked()),
this, SLOT(push1()));
connect(ui->button2, SIGNAL(clicked()),
this, SLOT(push2()));
connect(ui->button3, SIGNAL(clicked()),
this, SLOT(push3()));
connect(ui->button4, SIGNAL(clicked()),
this, SLOT(push4()));
connect(ui->button5, SIGNAL(clicked()),
this, SLOT(push5()));
connect(ui->button6, SIGNAL(clicked()),
this, SLOT(push6()));
connect(ui->button7, SIGNAL(clicked()),
this, SLOT(push7()));
connect(ui->button8, SIGNAL(clicked()),
this, SLOT(push8()));
connect(ui->button9, SIGNAL(clicked()),
this, SLOT(push9()));
connect(ui->buttonDot, SIGNAL(clicked()),
this, SLOT(pushpoint()));
connect(ui->buttonCE, SIGNAL(clicked()),
this, SLOT(ce()));
connect(ui->buttonC, SIGNAL(clicked()),
this, SLOT(c()));
connect(ui->buttonPlus, SIGNAL(clicked()),
this, SLOT(pushPlus()));
connect(ui->buttonSub, SIGNAL(clicked()),
this, SLOT(pushSub()));
connect(ui->buttonTimes, SIGNAL(clicked()),
this, SLOT(pushTimes()));
connect(ui->buttonDiv, SIGNAL(clicked()),
this, SLOT(pushDiv()));
connect(ui->buttonEqual, SIGNAL(clicked()),
this, SLOT(pushEqual()));
QFont font = ui->button0->font();
font.setPointSize(40);
ui->button0->setFont(font);
ui->button1->setFont(font);
ui->button2->setFont(font);
ui->button3->setFont(font);
ui->button4->setFont(font);
ui->button5->setFont(font);
ui->button6->setFont(font);
ui->button7->setFont(font);
ui->button8->setFont(font);
ui->button9->setFont(font);
ui->buttonC->setFont(font);
ui->buttonCE->setFont(font);
ui->buttonEqual->setFont(font);
ui->buttonDiv->setFont(font);
ui->buttonTimes->setFont(font);
ui->buttonPlus->setFont(font);
ui->buttonSub->setFont(font);
ui->buttonDot->setFont(font);
}
/* ----------------------------------------------------------------------------
function: for_() author: Andrew Cave
creation date: 22-Oct-1987 last modification: ##-###-####
arguments: none .
description:
See PostScript reference manual page 160. The manual does not define
correct behaviour when increment is zero, so we emulate behaviour observed
in (Level 2 and 3) Adobe RIPs, which is to finish without looping if
initial < limit, and loop forever otherwise, pushing initial on each iteration.
---------------------------------------------------------------------------- */
Bool for_(ps_context_t *pscontext)
{
register int32 inc , current , ilimit ;
register OBJECT *o1 , *o2 , *o3 , *o4 ;
int32 loop ;
SYSTEMVALUE args[ 3 ] ;
UNUSED_PARAM(ps_context_t *, pscontext) ;
if ( theStackSize( operandstack ) < 3 )
return error_handler( STACKUNDERFLOW ) ;
o4 = theTop( operandstack ) ;
o3 = ( & o4[ -1 ] ) ;
o2 = ( & o4[ -2 ] ) ;
o1 = ( & o4[ -3 ] ) ;
if ( ! fastStackAccess( operandstack )) {
o3 = stackindex( 1 , & operandstack ) ;
o2 = stackindex( 2 , & operandstack ) ;
o1 = stackindex( 3 , & operandstack ) ;
}
switch ( oType(*o4) ) {
case OARRAY :
case OPACKEDARRAY :
break ;
default:
return error_handler( TYPECHECK ) ;
}
if ( ! oCanExec(*o4) && !object_access_override(o4) )
return error_handler( INVALIDACCESS ) ;
if ( oType(*o1) == OINTEGER &&
oType(*o2) == OINTEGER &&
oType(*o3) == OINTEGER ) {
current = oInteger(*o1) ;
inc = oInteger(*o2) ;
ilimit = oInteger(*o3) ;
/* Tests indicate we should loop forever iff inc == 0 && current >= ilimit */
if (( inc > 0 ) ? ( current > ilimit ) : ( current < ilimit )) {
npop( 4 , & operandstack ) ;
return TRUE ;
}
if ( ! push4( o1, o2 , o3 , o4 , & executionstack ))
return FALSE ;
if ( ! xsetup_operator( NAME_xfastfori , 5 ))
return FALSE ;
if ( ! push( o4 , & executionstack ))
return FALSE ;
npop( 3 , & operandstack ) ;
HQASSERT(oInteger(*o1) == current, "current changed mysteriously") ;
return TRUE ;
}
/* Slow default case. */
if ( !object_get_numeric(o1, &args[0]) ||
!object_get_numeric(o2, &args[1]) ||
!object_get_numeric(o3, &args[2]) )
return FALSE ;
if ( oType(*o1) == OINTEGER && oType(*o2) == OINTEGER && intrange(args[2])) {
if ( ! push4( o1 , o2 , o3 , o4 , & executionstack ))
return FALSE ;
if ( ! xsetup_operator( NAME_xfori , 5 ))
return FALSE ;
}
else {
for ( loop = 0 ; loop < 3 ; ++loop )
if ( ! stack_push_real(args[loop], &executionstack) )
return FALSE ;
if ( ! push( o4 , & executionstack ))
return FALSE ;
if ( ! xsetup_operator( NAME_xforr , 5 ))
return FALSE ;
}
npop( 4 , & operandstack ) ;
return TRUE ;
}
