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/*
Copyright (C) 2015 Ruslan Kabatsayev <b7.10110111@gmail.com>
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "DialogEditFPU.h"
#include "EntryGridKeyUpDownEventFilter.h"
#include "Float80Edit.h"
#include "util/Float.h"
#include <QDebug>
#include <QDialogButtonBox>
#include <QGridLayout>
#include <QLabel>
#include <QLineEdit>
#include <QRegExp>
#include <QVBoxLayout>
#include <array>
#include <cmath>
#include <cstring>
#include <iomanip>
#include <iostream>
namespace ODbgRegisterView {
namespace {
long double readFloat(const QString &strInput, bool &ok) {
ok = false;
const QString str(strInput.toLower().trimmed());
if (const auto value = util::full_string_to_float<long double>(str.toStdString())) {
ok = true;
return *value;
}
// OK, so either it is invalid/unfinished, or it's some special value
// We still do want the user to be able to enter common special values
long double value;
static const std::array<std::uint8_t, 16> positiveInf{0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0x7f, 0, 0, 0, 0, 0, 0};
static const std::array<std::uint8_t, 16> negativeInf{0, 0, 0, 0, 0, 0, 0, 0x80, 0xff, 0xff, 0, 0, 0, 0, 0, 0};
static const std::array<std::uint8_t, 16> positiveSNaN{0, 0, 0, 0, 0, 0, 0, 0x90, 0xff, 0x7f, 0, 0, 0, 0, 0, 0};
static const std::array<std::uint8_t, 16> negativeSNaN{0, 0, 0, 0, 0, 0, 0, 0x90, 0xff, 0xff, 0, 0, 0, 0, 0, 0};
// Indefinite values are used for QNaN
static const std::array<std::uint8_t, 16> positiveQNaN{0, 0, 0, 0, 0, 0, 0, 0xc0, 0xff, 0x7f, 0, 0, 0, 0, 0, 0};
static const std::array<std::uint8_t, 16> negativeQNaN{0, 0, 0, 0, 0, 0, 0, 0xc0, 0xff, 0xff, 0, 0, 0, 0, 0, 0};
if (str == "+snan" || str == "snan")
std::memcpy(&value, &positiveSNaN, sizeof(value));
else if (str == "-snan")
std::memcpy(&value, &negativeSNaN, sizeof(value));
else if (str == "+qnan" || str == "qnan" || str == "nan")
std::memcpy(&value, &positiveQNaN, sizeof(value));
else if (str == "-qnan")
std::memcpy(&value, &negativeQNaN, sizeof(value));
else if (str == "+inf" || str == "inf")
std::memcpy(&value, &positiveInf, sizeof(value));
else if (str == "-inf")
std::memcpy(&value, &negativeInf, sizeof(value));
else
return 0;
ok = true;
return value;
}
}
DialogEditFPU::DialogEditFPU(QWidget *parent, Qt::WindowFlags f)
: QDialog(parent, f), floatEntry_(new ODbgRegisterView::Float80Edit(this)), hexEntry_(new QLineEdit(this)) {
setWindowTitle(tr("Modify Register"));
setModal(true);
const auto allContentsGrid = new QGridLayout();
allContentsGrid->addWidget(new QLabel(tr("Float"), this), 0, 0);
allContentsGrid->addWidget(new QLabel(tr("Hex"), this), 1, 0);
allContentsGrid->addWidget(floatEntry_, 0, 1);
allContentsGrid->addWidget(hexEntry_, 1, 1);
connect(floatEntry_, &Float80Edit::textEdited, this, &DialogEditFPU::onFloatEdited);
connect(hexEntry_, &QLineEdit::textEdited, this, &DialogEditFPU::onHexEdited);
hexEntry_->setValidator(new QRegExpValidator(QRegExp("[0-9a-fA-F ]{,20}"), this));
connect(floatEntry_, &Float80Edit::defocussed, this, &DialogEditFPU::updateFloatEntry);
hexEntry_->installEventFilter(this);
floatEntry_->installEventFilter(this);
const auto okCancel = new QDialogButtonBox(this);
okCancel->setStandardButtons(QDialogButtonBox::Cancel | QDialogButtonBox::Ok);
connect(okCancel, &QDialogButtonBox::accepted, this, &DialogEditFPU::accept);
connect(okCancel, &QDialogButtonBox::rejected, this, &DialogEditFPU::reject);
const auto dialogLayout = new QVBoxLayout(this);
dialogLayout->addLayout(allContentsGrid);
dialogLayout->addWidget(okCancel);
setTabOrder(floatEntry_, hexEntry_);
setTabOrder(hexEntry_, okCancel);
}
void DialogEditFPU::updateFloatEntry() {
floatEntry_->setValue(value_);
}
void DialogEditFPU::updateHexEntry() {
hexEntry_->setText(value_.toHexString());
}
bool DialogEditFPU::eventFilter(QObject *obj, QEvent *event) {
return entry_grid_key_event_filter(this, obj, event);
}
void DialogEditFPU::setValue(const Register &newReg) {
reg_ = newReg;
value_ = reg_.value<edb::value80>();
updateFloatEntry();
updateHexEntry();
setWindowTitle(tr("Modify %1").arg(reg_.name().toUpper()));
floatEntry_->setFocus(Qt::OtherFocusReason);
}
Register DialogEditFPU::value() const {
Register ret(reg_);
ret.setValueFrom(value_);
return ret;
}
void DialogEditFPU::onHexEdited(const QString &input) {
QString readable(input.trimmed());
readable.replace(' ', "");
while (readable.size() < 20) {
readable = '0' + readable;
}
const auto byteArray = QByteArray::fromHex(readable.toLatin1());
auto source = byteArray.constData();
auto dest = reinterpret_cast<unsigned char *>(&value_);
for (std::size_t i = 0; i < sizeof(value_); ++i) {
dest[i] = source[sizeof(value_) - i - 1];
}
updateFloatEntry();
}
void DialogEditFPU::onFloatEdited(const QString &str) {
bool ok;
const long double value = readFloat(str, ok);
if (ok) {
value_ = edb::value80(value);
}
updateHexEntry();
}
}
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