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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 "GprEdit.h"
#include "QLongValidator.h"
#include "QULongValidator.h"
#include "util/Font.h"
#include <QApplication>
#include <QRegExpValidator>
#include <cmath>
#include <cstring>
namespace ODbgRegisterView {
namespace {
const QRegExpValidator byteHexValidator(QRegExp("[0-9a-fA-F]{0,2}"));
const QRegExpValidator wordHexValidator(QRegExp("[0-9a-fA-F]{0,4}"));
const QRegExpValidator dwordHexValidator(QRegExp("[0-9a-fA-F]{0,8}"));
const QRegExpValidator qwordHexValidator(QRegExp("[0-9a-fA-F]{0,16}"));
const QLongValidator byteSignedValidator(INT8_MIN, INT8_MAX);
const QLongValidator wordSignedValidator(INT16_MIN, INT16_MAX);
const QLongValidator dwordSignedValidator(INT32_MIN, INT32_MAX);
const QLongValidator qwordSignedValidator(INT64_MIN, INT64_MAX);
const QULongValidator byteUnsignedValidator(0, UINT8_MAX);
const QULongValidator wordUnsignedValidator(0, UINT16_MAX);
const QULongValidator dwordUnsignedValidator(0, UINT32_MAX);
const QULongValidator qwordUnsignedValidator(0, UINT64_MAX);
const std::map<int, const QRegExpValidator *> hexValidators = {
{1, &byteHexValidator},
{2, &wordHexValidator},
{4, &dwordHexValidator},
{8, &qwordHexValidator}};
const std::map<int, const QLongValidator *> signedValidators = {
{1, &byteSignedValidator},
{2, &wordSignedValidator},
{4, &dwordSignedValidator},
{8, &qwordSignedValidator}};
const std::map<int, const QULongValidator *> unsignedValidators = {
{1, &byteUnsignedValidator},
{2, &wordUnsignedValidator},
{4, &dwordUnsignedValidator},
{8, &qwordUnsignedValidator}};
}
void GprEdit::setupFormat(Format newFormat) {
format_ = newFormat;
switch (format_) {
case Format::Hex:
setValidator(hexValidators.at(integerSize_));
naturalWidthInChars_ = 2 * integerSize_;
break;
case Format::Signed:
setValidator(signedValidators.at(integerSize_));
naturalWidthInChars_ = 1 + std::lround(integerSize_ * std::log10(256.));
break;
case Format::Unsigned:
setValidator(unsignedValidators.at(integerSize_));
naturalWidthInChars_ = std::lround(integerSize_ * std::log10(256.));
break;
case Format::Character:
setMaxLength(1);
break;
default:
Q_ASSERT("Unexpected format value" && 0);
}
}
GprEdit::GprEdit(std::size_t offsetInInteger, std::size_t integerSize, Format format, QWidget *parent)
: QLineEdit(parent), naturalWidthInChars_(2 * integerSize), integerSize_(integerSize), offsetInInteger_(offsetInInteger) {
setupFormat(format);
}
void GprEdit::setGPRValue(std::uint64_t gprValue) {
std::uint64_t value(0);
signBit_ = format_ == Format::Signed ? 1ull << (8 * integerSize_ - 1) : 0;
if ((gprValue >> 8 * offsetInInteger_) & signBit_)
value = -1;
std::memcpy(&value, reinterpret_cast<char *>(&gprValue) + offsetInInteger_, integerSize_);
switch (format_) {
case Format::Hex:
setText(QString("%1").arg(value, naturalWidthInChars_, 16, QChar('0')));
break;
case Format::Signed:
setText(QString("%1").arg(static_cast<std::int64_t>(value)));
break;
case Format::Unsigned:
setText(QString("%1").arg(value));
break;
case Format::Character:
setText(QChar(static_cast<char>(value)));
break;
}
}
void GprEdit::updateGPRValue(std::uint64_t &gpr) const {
bool ok;
std::uint64_t value;
switch (format_) {
case Format::Hex:
value = text().toULongLong(&ok, 16);
break;
case Format::Signed:
value = text().toLongLong(&ok);
break;
case Format::Unsigned:
value = text().toULongLong(&ok);
break;
case Format::Character:
value = text().toStdString()[0];
break;
default:
Q_ASSERT("Unexpected format value" && 0);
}
std::memcpy(reinterpret_cast<char *>(&gpr) + offsetInInteger_, &value, integerSize_);
}
QSize GprEdit::sizeHint() const {
const auto baseHint = QLineEdit::sizeHint();
// taking long enough reference char to make enough room even in presence of inner shadows like in Oxygen style
const auto charWidth = Font::maxWidth(QFontMetrics(font()));
const auto textMargins = this->textMargins();
const auto contentsMargins = this->contentsMargins();
int customWidth = charWidth * naturalWidthInChars_ + textMargins.left() + contentsMargins.left() + textMargins.right() + contentsMargins.right() + 1 * charWidth; // additional char to make edit field not too tight
return QSize(customWidth, baseHint.height()).expandedTo(QApplication::globalStrut());
}
}
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