/***************************************************************************
**
** This file is part of Qt Creator
**
** Copyright (c) 2008 Nokia Corporation and/or its subsidiary(-ies).
**
** Contact:  Qt Software Information (qt-info@nokia.com)
**
**
** Non-Open Source Usage
**
** Licensees may use this file in accordance with the Qt Beta Version
** License Agreement, Agreement version 2.2 provided with the Software or,
** alternatively, in accordance with the terms contained in a written
** agreement between you and Nokia.
**
** GNU General Public License Usage
**
** Alternatively, this file may be used under the terms of the GNU General
** Public License versions 2.0 or 3.0 as published by the Free Software
** Foundation and appearing in the file LICENSE.GPL included in the packaging
** of this file.  Please review the following information to ensure GNU
** General Public Licensing requirements will be met:
**
** http://www.fsf.org/licensing/licenses/info/GPLv2.html and
** http://www.gnu.org/copyleft/gpl.html.
**
** In addition, as a special exception, Nokia gives you certain additional
** rights. These rights are described in the Nokia Qt GPL Exception
** version 1.2, included in the file GPL_EXCEPTION.txt in this package.
**
***************************************************************************/
#include "breakwindow.h"

#include "ui_breakcondition.h"

#include <QAction>
#include <QDir>
#include <QFileInfo>
#include <QFileInfoList>
#include <QHeaderView>
#include <QKeyEvent>
#include <QMenu>
#include <QResizeEvent>
#include <QToolButton>
#include <QTreeView>

using Debugger::Internal::BreakWindow;


BreakWindow::BreakWindow(QWidget *parent)
  : QTreeView(parent), m_alwaysResizeColumnsToContents(false)
{
    setWindowTitle(tr("Breakpoints"));
    setWindowIcon(QIcon(":/gdbdebugger/images/debugger_breakpoints.png"));
    setAlternatingRowColors(true);
    setRootIsDecorated(false);
    setIconSize(QSize(10, 10));

    connect(this, SIGNAL(activated(QModelIndex)),
        this, SLOT(rowActivated(QModelIndex)));
}

void BreakWindow::keyPressEvent(QKeyEvent *event)
{
    if (event->key() == Qt::Key_Delete)
        deleteBreakpoint(currentIndex());
    QTreeView::keyPressEvent(event);
}

void BreakWindow::resizeEvent(QResizeEvent *event)
{
    QHeaderView *hv = header();
    int totalSize = event->size().width() - 180;
    hv->resizeSection(0, 60);
    hv->resizeSection(1, (totalSize * 30) / 100);
    hv->resizeSection(2, (totalSize * 30) / 100);
    hv->resizeSection(3, (totalSize * 30) / 100);
    hv->resizeSection(4, 70);
    hv->resizeSection(5, 50);
    QTreeView::resizeEvent(event);
}

void BreakWindow::contextMenuEvent(QContextMenuEvent *ev)
{
    QMenu menu;
    QModelIndex index = indexAt(ev->pos());
    QAction *act0 = new QAction("Delete breakpoint", &menu);
    QAction *act1 = new QAction("Adjust column widths to contents", &menu);
    QAction *act2 = new QAction("Always adjust column widths to contents", &menu);
    QAction *act3 = new QAction("Edit condition...", &menu);
    act2->setCheckable(true);
    act2->setChecked(m_alwaysResizeColumnsToContents);
    if (index.isValid()) {
        menu.addAction(act0);
        menu.addAction(act3);
        menu.addSeparator();
    }
    menu.addAction(act1);
    menu.addAction(act2);

    QAction *act = menu.exec(ev->globalPos());

    if (act == act0)
        deleteBreakpoint(index);
    else if (act == act1)
        resizeColumnsToContents();
    else if (act == act2)
        setAlwaysResizeColumnsToContents(!m_alwaysResizeColumnsToContents);
    else if (act == act3)
        editCondition(index);
}

void BreakWindow::deleteBreakpoint(const QModelIndex &idx)
{
    int row = idx.row();
    if (row == model()->rowCount() - 1)
        --row;
    setCurrentIndex(idx.sibling(row, 0));
    emit breakPointDeleted(idx.row());
}

void BreakWindow::editCondition(const QModelIndex &idx)
{
    QDialog dlg(this);
    Ui::BreakCondition ui;
    ui.setupUi(&dlg);

    int row = idx.row();
    dlg.setWindowTitle(tr("Conditions on Breakpoint %1").arg(row));
    ui.lineEditCondition->setText(model()->data(idx.sibling(row, 4)).toString());
    ui.spinBoxIgnoreCount->setValue(model()->data(idx.sibling(row, 5)).toInt());

    if (dlg.exec() == QDialog::Rejected)
        return;

    model()->setData(idx.sibling(row, 4), ui.lineEditCondition->text());
    model()->setData(idx.sibling(row, 5), ui.spinBoxIgnoreCount->value());
}

void BreakWindow::resizeColumnsToContents()
{
    resizeColumnToContents(0);
    resizeColumnToContents(1);
    resizeColumnToContents(2);
    resizeColumnToContents(3);
}

void BreakWindow::setAlwaysResizeColumnsToContents(bool on)
{
    m_alwaysResizeColumnsToContents = on;
    QHeaderView::ResizeMode mode = on 
        ? QHeaderView::ResizeToContents : QHeaderView::Interactive;
    header()->setResizeMode(0, mode);
    header()->setResizeMode(1, mode);
    header()->setResizeMode(2, mode);
    header()->setResizeMode(3, mode);
}

void BreakWindow::rowActivated(const QModelIndex &index)
{
    emit breakPointActivated(index.row());
}