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path: root/src/citra_qt/debugger/graphics_breakpoints.cpp
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// Copyright 2014 Citra Emulator Project
// Licensed under GPLv2
// Refer to the license.txt file included.

#include <QMetaType>
#include <QPushButton>
#include <QTreeWidget>
#include <QVBoxLayout>
#include <QLabel>

#include "graphics_breakpoints.hxx"
#include "graphics_breakpoints_p.hxx"

BreakPointModel::BreakPointModel(std::shared_ptr<Pica::DebugContext> debug_context, QObject* parent)
    : QAbstractListModel(parent), context_weak(debug_context),
      at_breakpoint(debug_context->at_breakpoint),
      active_breakpoint(debug_context->active_breakpoint)
{

}

int BreakPointModel::columnCount(const QModelIndex& parent) const
{
    return 2;
}

int BreakPointModel::rowCount(const QModelIndex& parent) const
{
    return static_cast<int>(Pica::DebugContext::Event::NumEvents);
}

QVariant BreakPointModel::data(const QModelIndex& index, int role) const
{
    const auto event = static_cast<Pica::DebugContext::Event>(index.row());

    switch (role) {
    case Qt::DisplayRole:
    {
        switch (index.column()) {
        case 0:
        {
            std::map<Pica::DebugContext::Event, QString> map;
            map.insert({Pica::DebugContext::Event::CommandLoaded, tr("Pica command loaded")});
            map.insert({Pica::DebugContext::Event::CommandProcessed, tr("Pica command processed")});
            map.insert({Pica::DebugContext::Event::IncomingPrimitiveBatch, tr("Incoming primitive batch")});
            map.insert({Pica::DebugContext::Event::FinishedPrimitiveBatch, tr("Finished primitive batch")});

            _dbg_assert_(Debug_GPU, map.size() == static_cast<size_t>(Pica::DebugContext::Event::NumEvents));

            return map[event];
        }

        case 1:
            return data(index, Role_IsEnabled).toBool() ? tr("Enabled") : tr("Disabled");

        default:
            break;
        }

        break;
    }

    case Qt::BackgroundRole:
    {
        if (at_breakpoint && index.row() == static_cast<int>(active_breakpoint)) {
            return QBrush(QColor(0xE0, 0xE0, 0x10));
        }
        break;
    }

    case Role_IsEnabled:
    {
        auto context = context_weak.lock();
        return context && context->breakpoints[event].enabled;
    }

    default:
        break;
    }
    return QVariant();
}

QVariant BreakPointModel::headerData(int section, Qt::Orientation orientation, int role) const
{
    switch(role) {
    case Qt::DisplayRole:
    {
        if (section == 0) {
            return tr("Event");
        } else if (section == 1) {
            return tr("Status");
        }

        break;
    }
    }

    return QVariant();
}

bool BreakPointModel::setData(const QModelIndex& index, const QVariant& value, int role)
{
    const auto event = static_cast<Pica::DebugContext::Event>(index.row());

    switch (role) {
    case Role_IsEnabled:
    {
        auto context = context_weak.lock();
        if (!context)
            return false;

        context->breakpoints[event].enabled = value.toBool();
        QModelIndex changed_index = createIndex(index.row(), 1);
        emit dataChanged(changed_index, changed_index);
        return true;
    }
    }

    return false;
}


void BreakPointModel::OnBreakPointHit(Pica::DebugContext::Event event)
{
    auto context = context_weak.lock();
    if (!context)
        return;

    active_breakpoint = context->active_breakpoint;
    at_breakpoint = context->at_breakpoint;
    emit dataChanged(createIndex(static_cast<int>(event), 0),
                     createIndex(static_cast<int>(event), 1));
}

void BreakPointModel::OnResumed()
{
    auto context = context_weak.lock();
    if (!context)
        return;

    at_breakpoint = context->at_breakpoint;
    emit dataChanged(createIndex(static_cast<int>(active_breakpoint), 0),
                     createIndex(static_cast<int>(active_breakpoint), 1));
    active_breakpoint = context->active_breakpoint;
}


GraphicsBreakPointsWidget::GraphicsBreakPointsWidget(std::shared_ptr<Pica::DebugContext> debug_context,
                                                     QWidget* parent)
    : QDockWidget(tr("Pica Breakpoints"), parent),
      Pica::DebugContext::BreakPointObserver(debug_context)
{
    setObjectName("PicaBreakPointsWidget");

    status_text = new QLabel(tr("Emulation running"));
    resume_button = new QPushButton(tr("Resume"));
    resume_button->setEnabled(false);

    breakpoint_model = new BreakPointModel(debug_context, this);
    breakpoint_list = new QTreeView;
    breakpoint_list->setModel(breakpoint_model);

    toggle_breakpoint_button = new QPushButton(tr("Enable"));
    toggle_breakpoint_button->setEnabled(false);

    qRegisterMetaType<Pica::DebugContext::Event>("Pica::DebugContext::Event");

    connect(resume_button, SIGNAL(clicked()), this, SLOT(OnResumeRequested()));

    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
            this, SLOT(OnBreakPointHit(Pica::DebugContext::Event,void*)),
            Qt::BlockingQueuedConnection);
    connect(this, SIGNAL(Resumed()), this, SLOT(OnResumed()));

    connect(this, SIGNAL(BreakPointHit(Pica::DebugContext::Event,void*)),
            breakpoint_model, SLOT(OnBreakPointHit(Pica::DebugContext::Event)),
            Qt::BlockingQueuedConnection);
    connect(this, SIGNAL(Resumed()), breakpoint_model, SLOT(OnResumed()));

    connect(this, SIGNAL(BreakPointsChanged(const QModelIndex&,const QModelIndex&)),
            breakpoint_model, SIGNAL(dataChanged(const QModelIndex&,const QModelIndex&)));

    connect(breakpoint_list->selectionModel(), SIGNAL(currentChanged(QModelIndex,QModelIndex)),
            this, SLOT(OnBreakpointSelectionChanged(QModelIndex)));

    connect(toggle_breakpoint_button, SIGNAL(clicked()), this, SLOT(OnToggleBreakpointEnabled()));

    QWidget* main_widget = new QWidget;
    auto main_layout = new QVBoxLayout;
    {
        auto sub_layout = new QHBoxLayout;
        sub_layout->addWidget(status_text);
        sub_layout->addWidget(resume_button);
        main_layout->addLayout(sub_layout);
    }
    main_layout->addWidget(breakpoint_list);
    main_layout->addWidget(toggle_breakpoint_button);
    main_widget->setLayout(main_layout);

    setWidget(main_widget);
}

void GraphicsBreakPointsWidget::OnPicaBreakPointHit(Event event, void* data)
{
    // Process in GUI thread
    emit BreakPointHit(event, data);
}

void GraphicsBreakPointsWidget::OnBreakPointHit(Pica::DebugContext::Event event, void* data)
{
    status_text->setText(tr("Emulation halted at breakpoint"));
    resume_button->setEnabled(true);
}

void GraphicsBreakPointsWidget::OnPicaResume()
{
    // Process in GUI thread
    emit Resumed();
}

void GraphicsBreakPointsWidget::OnResumed()
{
    status_text->setText(tr("Emulation running"));
    resume_button->setEnabled(false);
}

void GraphicsBreakPointsWidget::OnResumeRequested()
{
    if (auto context = context_weak.lock())
        context->Resume();
}

void GraphicsBreakPointsWidget::OnBreakpointSelectionChanged(const QModelIndex& index)
{
    if (!index.isValid()) {
        toggle_breakpoint_button->setEnabled(false);
        return;
    }

    toggle_breakpoint_button->setEnabled(true);
    UpdateToggleBreakpointButton(index);
}

void GraphicsBreakPointsWidget::OnToggleBreakpointEnabled()
{
    QModelIndex index = breakpoint_list->selectionModel()->currentIndex();
    bool new_state = !(breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool());

    breakpoint_model->setData(index, new_state,
                              BreakPointModel::Role_IsEnabled);
    UpdateToggleBreakpointButton(index);
}

void GraphicsBreakPointsWidget::UpdateToggleBreakpointButton(const QModelIndex& index)
{
    if (true == breakpoint_model->data(index, BreakPointModel::Role_IsEnabled).toBool()) {
        toggle_breakpoint_button->setText(tr("Disable"));
    } else {
        toggle_breakpoint_button->setText(tr("Enable"));
    }
}