view widgets/ModelDataTableDialog.cpp @ 1447:8afea53332f3 single-point

Add option to make pane sizes auto-resize-only (i.e. remove user control via a splitter); also place alignment views above panes instead of below, meaning the extra bit of space that we currently have for the pane without one at least goes to the primary pane

/* -*- c-basic-offset: 4 indent-tabs-mode: nil -*-  vi:set ts=8 sts=4 sw=4: */

/*
    Sonic Visualiser
    An audio file viewer and annotation editor.
    Centre for Digital Music, Queen Mary, University of London.
    This file copyright 2008 QMUL.
    
    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.  See the file
    COPYING included with this distribution for more information.
*/

#include "ModelDataTableDialog.h"

#include "data/model/ModelDataTableModel.h"
#include "data/model/TabularModel.h"
#include "data/model/Model.h"

#include "CommandHistory.h"
#include "IconLoader.h"

#include <QTableView>
#include <QLineEdit>
#include <QGridLayout>
#include <QLabel>
#include <QGroupBox>
#include <QDialogButtonBox>
#include <QHeaderView>
#include <QApplication>
#include <QDesktopWidget>
#include <QAction>
#include <QToolBar>

#include <iostream>

ModelDataTableDialog::ModelDataTableDialog(TabularModel *model,
                                           QString title, QWidget *parent) :
    QMainWindow(parent),
    m_currentRow(0),
    m_trackPlayback(true)
{
    setWindowTitle(tr("Data Editor"));

    QToolBar *toolbar;

    toolbar = addToolBar(tr("Playback Toolbar"));
    m_playToolbar = toolbar;
    toolbar = addToolBar(tr("Play Mode Toolbar"));
    
    IconLoader il;

    QAction *action = new QAction(il.load("playfollow"), tr("Track Playback"), this);
    action->setStatusTip(tr("Toggle tracking of playback position"));
    action->setCheckable(true);
    action->setChecked(m_trackPlayback);
    connect(action, SIGNAL(triggered()), this, SLOT(togglePlayTracking()));
    toolbar->addAction(action);

    toolbar = addToolBar(tr("Edit Toolbar"));

    action = new QAction(il.load("draw"), tr("Insert New Item"), this);
    action->setShortcut(tr("Insert"));
    action->setStatusTip(tr("Insert a new item"));
    connect(action, SIGNAL(triggered()), this, SLOT(insertRow()));
    toolbar->addAction(action);

    action = new QAction(il.load("datadelete"), tr("Delete Selected Items"), this);
    action->setShortcut(tr("Delete"));
    action->setStatusTip(tr("Delete the selected item or items"));
    connect(action, SIGNAL(triggered()), this, SLOT(deleteRows()));
    toolbar->addAction(action);

    CommandHistory::getInstance()->registerToolbar(toolbar);

/*
    action = new QAction(il.load("dataedit"), tr("Edit Selected Item"), this);
    action->setShortcut(tr("Edit"));
    action->setStatusTip(tr("Edit the selected item"));
    connect(action, SIGNAL(triggered()), this, SLOT(editRow()));
    toolbar->addAction(action);
*/

    QFrame *mainFrame = new QFrame;
    setCentralWidget(mainFrame);

    QGridLayout *grid = new QGridLayout;
    mainFrame->setLayout(grid);
    
    QGroupBox *box = new QGroupBox;
    if (title != "") {
        box->setTitle(title);
    } else {
        box->setTitle(tr("Data in Layer"));
    }
    grid->addWidget(box, 0, 0);
    grid->setRowStretch(0, 15);

    QGridLayout *subgrid = new QGridLayout;
    box->setLayout(subgrid);

    subgrid->setSpacing(0);
    subgrid->setMargin(5);

    subgrid->addWidget(new QLabel(tr("Find:")), 1, 0);
    subgrid->addWidget(new QLabel(tr(" ")), 1, 1);
    m_find = new QLineEdit;
    subgrid->addWidget(m_find, 1, 2);
    connect(m_find, SIGNAL(textChanged(const QString &)),
            this, SLOT(searchTextChanged(const QString &)));
    connect(m_find, SIGNAL(returnPressed()),
            this, SLOT(searchRepeated()));

    m_tableView = new QTableView;
    subgrid->addWidget(m_tableView, 0, 0, 1, 3);

    m_tableView->setSortingEnabled(true);
    m_tableView->sortByColumn(0, Qt::AscendingOrder);

    m_table = new ModelDataTableModel(model);
    m_tableView->setModel(m_table);

    m_tableView->horizontalHeader()->setStretchLastSection(true);

    connect(m_tableView, SIGNAL(clicked(const QModelIndex &)),
            this, SLOT(viewClicked(const QModelIndex &)));
    connect(m_tableView, SIGNAL(pressed(const QModelIndex &)),
            this, SLOT(viewPressed(const QModelIndex &)));
    connect(m_tableView->selectionModel(),
            SIGNAL(currentChanged(const QModelIndex &, const QModelIndex &)),
            this,
            SLOT(currentChanged(const QModelIndex &, const QModelIndex &)));
    connect(m_table, SIGNAL(addCommand(Command *)),
            this, SLOT(addCommand(Command *)));
    connect(m_table, SIGNAL(currentChanged(const QModelIndex &)),
            this, SLOT(currentChangedThroughResort(const QModelIndex &)));
    connect(m_table, SIGNAL(modelRemoved()),
            this, SLOT(modelRemoved()));

    QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Close);
    connect(bb, SIGNAL(rejected()), this, SLOT(close()));
    grid->addWidget(bb, 2, 0);
    grid->setRowStretch(2, 0);
    
    QDesktopWidget *desktop = QApplication::desktop();
    QRect available = desktop->availableGeometry();

    int width = available.width() / 3;
    int height = available.height() / 2;
    if (height < 370) {
        if (available.height() > 500) height = 370;
    }
    if (width < 650) {
        if (available.width() > 750) width = 650;
        else if (width < 500) {
            if (available.width() > 650) width = 500;
        }
    }

    resize(width, height);
}

ModelDataTableDialog::~ModelDataTableDialog()
{
    delete m_table;
}

void
ModelDataTableDialog::userScrolledToFrame(sv_frame_t frame)
{
    QModelIndex index = m_table->getModelIndexForFrame(frame);
    makeCurrent(index.row());
}

void
ModelDataTableDialog::playbackScrolledToFrame(sv_frame_t frame)
{
    if (m_trackPlayback) {
        QModelIndex index = m_table->getModelIndexForFrame(frame);
        makeCurrent(index.row());
    }
}

void
ModelDataTableDialog::searchTextChanged(const QString &text)
{
    QModelIndex mi = m_table->findText(text);
    if (mi.isValid()) {
        makeCurrent(mi.row());
        m_tableView->selectionModel()->setCurrentIndex
            (mi, QItemSelectionModel::ClearAndSelect);
    }
}

void
ModelDataTableDialog::searchRepeated()
{
    QModelIndex mi = m_table->findText(m_find->text());
    if (mi.isValid()) {
        makeCurrent(mi.row());
        m_tableView->selectionModel()->setCurrentIndex
            (mi, QItemSelectionModel::ClearAndSelect);
    }
}

void
ModelDataTableDialog::makeCurrent(int row)
{
    if (m_table->rowCount() == 0 ||
        row >= m_table->rowCount() ||
        row < 0) {
        return;
    }
    
    int rh = m_tableView->height() / m_tableView->rowHeight(0);
    int topRow = row - rh/4;
    if (topRow < 0) topRow = 0;
    
    // should only scroll if the desired row is not currently visible

    // should only select if no part of the desired row is currently selected

//    cerr << "rh = " << rh << ", row = " << row << ", scrolling to "
//              << topRow << endl;

    int pos = m_tableView->rowViewportPosition(row);

    if (pos < 0 || pos >= m_tableView->height() - rh) {
        m_tableView->scrollTo(m_table->index(topRow, 0));
    }

    bool haveRowSelected = false;
    for (int i = 0; i < m_table->columnCount(); ++i) {
        if (m_tableView->selectionModel()->isSelected(m_table->index(row, i))) {
            haveRowSelected = true;
            break;
        }
    }

    if (!haveRowSelected) {
        m_tableView->selectionModel()->setCurrentIndex
            (m_table->index(row, 0),
             QItemSelectionModel::ClearAndSelect | QItemSelectionModel::Rows);
    }
}

void
ModelDataTableDialog::viewClicked(const QModelIndex &index)
{
//    SVDEBUG << "ModelDataTableDialog::viewClicked: " << index.row() << ", " << index.column() << endl;
    emit scrollToFrame(m_table->getFrameForModelIndex(index));
}

void
ModelDataTableDialog::viewPressed(const QModelIndex &)
{
//    SVDEBUG << "ModelDataTableDialog::viewPressed: " << index.row() << ", " << index.column() << endl;
}

void
ModelDataTableDialog::currentChanged(const QModelIndex &current,
                                     const QModelIndex &previous)
{
    SVDEBUG << "ModelDataTableDialog::currentChanged: from "
            << previous.row() << ", " << previous.column()
            << " to " << current.row() << ", " << current.column() 
            << endl;
    m_currentRow = current.row();
    m_table->setCurrentRow(m_currentRow);
}

void
ModelDataTableDialog::insertRow()
{
    m_table->insertRow(m_currentRow);
}

void
ModelDataTableDialog::deleteRows()
{
    std::set<int> selectedRows;
    if (m_tableView->selectionModel()->hasSelection()) {
        for (const auto &ix: m_tableView->selectionModel()->selectedIndexes()) {
            selectedRows.insert(ix.row());
        }
    }
    // Remove rows in reverse order, so as not to pull the rug from
    // under our own feet
    for (auto ri = selectedRows.rbegin(); ri != selectedRows.rend(); ++ri) {
        SVDEBUG << "ModelDataTableDialog: removing row " << *ri << endl;
        m_table->removeRow(*ri);
    }
}

void
ModelDataTableDialog::editRow()
{
}

void
ModelDataTableDialog::addCommand(Command *command)
{
    CommandHistory::getInstance()->addCommand(command, false, true);
}

void
ModelDataTableDialog::togglePlayTracking()
{
    m_trackPlayback = !m_trackPlayback;
}

void
ModelDataTableDialog::currentChangedThroughResort(const QModelIndex &index)
{
//    SVDEBUG << "ModelDataTableDialog::currentChangedThroughResort: row = " << index.row() << endl;
//  m_tableView->scrollTo(index);
    makeCurrent(index.row());
}

void
ModelDataTableDialog::modelRemoved()
{
    close();
}