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citra/src/citra_qt/cheats.cpp
zhupengfei 433176a9b9
citra_qt: Implement UI for adding/editing/deleting cheats 
The UI file is rewritten, to better make use of Qt's layouts (instead of depending on abstract geometry). "Add Cheat", "Save", "Delete" buttons are also added.

The UI logic should be rather easy and usable (IMO), but the code may seem a bit dirty. If anyone has a better idea regarding UI logic design or code implementation, feel free to tell me about it.
2019-02-02 08:15:27 +08:00

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// Copyright 2018 Citra Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include <QCheckBox>
#include <QMessageBox>
#include <QTableWidgetItem>
#include "citra_qt/cheats.h"
#include "core/cheats/cheat_base.h"
#include "core/cheats/cheats.h"
#include "core/cheats/gateway_cheat.h"
#include "core/core.h"
#include "core/hle/kernel/process.h"
#include "ui_cheats.h"
CheatDialog::CheatDialog(QWidget* parent)
: QDialog(parent), ui(std::make_unique<Ui::CheatDialog>()) {
// Setup gui control settings
ui->setupUi(this);
setWindowFlags(Qt::Dialog | Qt::MSWindowsFixedSizeDialogHint);
ui->tableCheats->setColumnWidth(0, 30);
ui->tableCheats->setColumnWidth(2, 85);
ui->tableCheats->horizontalHeader()->setSectionResizeMode(0, QHeaderView::Fixed);
ui->tableCheats->horizontalHeader()->setSectionResizeMode(1, QHeaderView::Stretch);
ui->tableCheats->horizontalHeader()->setSectionResizeMode(2, QHeaderView::Fixed);
ui->lineName->setEnabled(false);
ui->textCode->setEnabled(false);
ui->textNotes->setEnabled(false);
const auto game_id = fmt::format(
"{:016X}", Core::System::GetInstance().Kernel().GetCurrentProcess()->codeset->program_id);
ui->labelTitle->setText(tr("Title ID: %1").arg(QString::fromStdString(game_id)));
connect(ui->buttonClose, &QPushButton::released, this, &CheatDialog::OnCancel);
connect(ui->buttonAddCheat, &QPushButton::released, this, &CheatDialog::OnAddCheat);
connect(ui->tableCheats, &QTableWidget::cellClicked, this, &CheatDialog::OnRowSelected);
connect(ui->lineName, &QLineEdit::textEdited, this, &CheatDialog::OnTextEdited);
connect(ui->textNotes, &QPlainTextEdit::textChanged, this, &CheatDialog::OnTextEdited);
connect(ui->textCode, &QPlainTextEdit::textChanged, this, &CheatDialog::OnTextEdited);
connect(ui->buttonSave, &QPushButton::released,
[this] { SaveCheat(ui->tableCheats->currentRow()); });
connect(ui->buttonDelete, &QPushButton::released, this, &CheatDialog::OnDeleteCheat);
LoadCheats();
}
CheatDialog::~CheatDialog() = default;
void CheatDialog::LoadCheats() {
cheats = Core::System::GetInstance().CheatEngine().GetCheats();
ui->tableCheats->setRowCount(cheats.size());
for (size_t i = 0; i < cheats.size(); i++) {
QCheckBox* enabled = new QCheckBox();
enabled->setChecked(cheats[i]->IsEnabled());
enabled->setStyleSheet("margin-left:7px;");
ui->tableCheats->setItem(i, 0, new QTableWidgetItem());
ui->tableCheats->setCellWidget(i, 0, enabled);
ui->tableCheats->setItem(
i, 1, new QTableWidgetItem(QString::fromStdString(cheats[i]->GetName())));
ui->tableCheats->setItem(
i, 2, new QTableWidgetItem(QString::fromStdString(cheats[i]->GetType())));
enabled->setProperty("row", static_cast<int>(i));
connect(enabled, &QCheckBox::stateChanged, this, &CheatDialog::OnCheckChanged);
}
}
bool CheatDialog::CheckSaveCheat() {
auto answer = QMessageBox::warning(
this, tr("Cheats"), tr("Would you like to save the current cheat?"),
QMessageBox::Yes | QMessageBox::No | QMessageBox::Cancel, QMessageBox::Cancel);
if (answer == QMessageBox::Yes) {
return SaveCheat(last_row);
} else {
return answer != QMessageBox::Cancel;
}
}
bool CheatDialog::SaveCheat(int row) {
if (ui->lineName->text().isEmpty()) {
QMessageBox::critical(this, tr("Save Cheat"), tr("Please enter a cheat name."));
return false;
}
if (ui->textCode->toPlainText().isEmpty()) {
QMessageBox::critical(this, tr("Save Cheat"), tr("Please enter the cheat code."));
return false;
}
// Check if the cheat lines are valid
auto code_lines = ui->textCode->toPlainText().split("\n", QString::SkipEmptyParts);
for (int i = 0; i < code_lines.size(); ++i) {
Cheats::GatewayCheat::CheatLine cheat_line(code_lines[i].toStdString());
if (cheat_line.valid)
continue;
auto answer = QMessageBox::warning(
this, tr("Save Cheat"),
tr("Cheat code line %1 is not valid.\nWould you like to ignore the error and continue?")
.arg(i + 1),
QMessageBox::Yes | QMessageBox::No, QMessageBox::No);
if (answer == QMessageBox::No)
return false;
}
auto cheat = std::make_shared<Cheats::GatewayCheat>(ui->lineName->text().toStdString(),
ui->textCode->toPlainText().toStdString(),
ui->textNotes->toPlainText().toStdString());
if (newly_created) {
Core::System::GetInstance().CheatEngine().AddCheat(cheat);
newly_created = false;
} else {
Core::System::GetInstance().CheatEngine().UpdateCheat(row, cheat);
}
Core::System::GetInstance().CheatEngine().SaveCheatFile();
int previous_row = ui->tableCheats->currentRow();
int previous_col = ui->tableCheats->currentColumn();
LoadCheats();
ui->tableCheats->setCurrentCell(previous_row, previous_col);
edited = false;
ui->buttonSave->setEnabled(false);
ui->buttonAddCheat->setEnabled(true);
return true;
}
void CheatDialog::closeEvent(QCloseEvent* event) {
if (edited && !CheckSaveCheat()) {
event->ignore();
return;
}
event->accept();
}
void CheatDialog::OnCancel() {
close();
}
void CheatDialog::OnRowSelected(int row, int column) {
if (row == last_row) {
return;
}
if (edited && !CheckSaveCheat()) {
ui->tableCheats->setCurrentCell(last_row, last_col);
return;
}
if (row < cheats.size()) {
if (newly_created) {
// Remove the newly created dummy item
newly_created = false;
ui->tableCheats->setRowCount(ui->tableCheats->rowCount() - 1);
}
const auto& current_cheat = cheats[row];
ui->lineName->setText(QString::fromStdString(current_cheat->GetName()));
ui->textNotes->setPlainText(QString::fromStdString(current_cheat->GetComments()));
ui->textCode->setPlainText(QString::fromStdString(current_cheat->GetCode()));
}
edited = false;
ui->buttonSave->setEnabled(false);
ui->buttonDelete->setEnabled(true);
ui->buttonAddCheat->setEnabled(true);
ui->lineName->setEnabled(true);
ui->textCode->setEnabled(true);
ui->textNotes->setEnabled(true);
last_row = row;
last_col = column;
}
void CheatDialog::OnCheckChanged(int state) {
const QCheckBox* checkbox = qobject_cast<QCheckBox*>(sender());
int row = static_cast<int>(checkbox->property("row").toInt());
cheats[row]->SetEnabled(state);
Core::System::GetInstance().CheatEngine().SaveCheatFile();
}
void CheatDialog::OnTextEdited() {
edited = true;
ui->buttonSave->setEnabled(true);
}
void CheatDialog::OnDeleteCheat() {
if (newly_created) {
newly_created = false;
} else {
Core::System::GetInstance().CheatEngine().RemoveCheat(ui->tableCheats->currentRow());
Core::System::GetInstance().CheatEngine().SaveCheatFile();
}
LoadCheats();
if (cheats.empty()) {
ui->lineName->setText("");
ui->textCode->setPlainText("");
ui->textNotes->setPlainText("");
ui->lineName->setEnabled(false);
ui->textCode->setEnabled(false);
ui->textNotes->setEnabled(false);
ui->buttonDelete->setEnabled(false);
last_row = last_col = -1;
} else {
if (last_row >= ui->tableCheats->rowCount()) {
last_row = ui->tableCheats->rowCount() - 1;
}
ui->tableCheats->setCurrentCell(last_row, last_col);
const auto& current_cheat = cheats[last_row];
ui->lineName->setText(QString::fromStdString(current_cheat->GetName()));
ui->textNotes->setPlainText(QString::fromStdString(current_cheat->GetComments()));
ui->textCode->setPlainText(QString::fromStdString(current_cheat->GetCode()));
}
edited = false;
ui->buttonSave->setEnabled(false);
ui->buttonAddCheat->setEnabled(true);
}
void CheatDialog::OnAddCheat() {
if (edited && !CheckSaveCheat()) {
return;
}
int row = ui->tableCheats->rowCount();
ui->tableCheats->setRowCount(row + 1);
ui->tableCheats->setCurrentCell(row, 1);
// create a dummy item
ui->tableCheats->setItem(row, 1, new QTableWidgetItem(tr("[new cheat]")));
ui->tableCheats->setItem(row, 2, new QTableWidgetItem(""));
ui->lineName->setText("");
ui->lineName->setPlaceholderText(tr("[new cheat]"));
ui->textCode->setPlainText("");
ui->textNotes->setPlainText("");
ui->lineName->setEnabled(true);
ui->textCode->setEnabled(true);
ui->textNotes->setEnabled(true);
ui->buttonSave->setEnabled(true);
ui->buttonDelete->setEnabled(true);
ui->buttonAddCheat->setEnabled(false);
edited = false;
newly_created = true;
last_row = row;
last_col = 1;
}
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