view widgets/KeyReference.cpp @ 561:aced8ec09bc8

* Complete the overhaul of CSV file import; now you can pick the purpose for
  each column in the file, and SV should do the rest.  The most significant
  practical improvement here is that we can now handle files in which time
  and duration do not necessarily appear in known columns.

/* -*- 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 2007 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 "KeyReference.h"

#include <QAction>
#include <QTextEdit>
#include <QDialog>
#include <QVBoxLayout>
#include <QDialogButtonBox>
#include <QApplication>
#include <QDesktopWidget>

KeyReference::KeyReference() :
    m_dialog(0)
{
}

KeyReference::~KeyReference()
{
    delete m_dialog;
}

void
KeyReference::setCategory(QString category)
{
    if (m_map.find(category) == m_map.end()) {
        m_categoryOrder.push_back(category);
        m_map[category] = KeyList();
    }
    m_currentCategory = category;
}

void
KeyReference::registerShortcut(QAction *action, QString overrideName)
{
    QString name = action->text();
    if (overrideName != "") name = overrideName;

    QString shortcut = action->shortcut();
    QString tip = action->statusTip();

    registerShortcut(name, shortcut, tip);
}

void
KeyReference::registerShortcut(QString name, QString shortcut, QString tip)
{
    name.replace(tr("&"), "");
            
    KeyList &list = m_map[m_currentCategory];

    for (KeyList::iterator i = list.begin(); i != list.end(); ++i) {
        if (i->actionName == name) {
            i->shortcut = shortcut;
            i->tip = tip;
            i->alternatives.clear();
            return;
        }
    }

    KeyDetails details;
    details.actionName = name;
    details.shortcut = shortcut;
    details.tip = tip;

    list.push_back(details);
}

void
KeyReference::registerAlternativeShortcut(QAction *action, QString alternative)
{
    QString name = action->text();
    registerAlternativeShortcut(name, alternative);
}

void
KeyReference::registerAlternativeShortcut(QString name, QString alternative)
{
    name.replace(tr("&"), "");

    KeyList &list = m_map[m_currentCategory];

    for (KeyList::iterator i = list.begin(); i != list.end(); ++i) {
        if (i->actionName == name) {
            i->alternatives.push_back(alternative);
            return;
        }
    }
}

void
KeyReference::show()
{
    if (m_dialog) {
        m_dialog->show();
        m_dialog->raise();
        return;
    }

    QString text;
    
    QColor bgcolor = QApplication::palette().window().color();
    bool darkbg = (bgcolor.red() + bgcolor.green() + bgcolor.blue() < 384);

    text += QString("<center><table bgcolor=\"%1\">")
        .arg(darkbg ? "#121212" : "#e8e8e8");
        
    for (CategoryList::iterator i = m_categoryOrder.begin();
         i != m_categoryOrder.end(); ++i) {

        QString category = *i;
        KeyList &list = m_map[category];

        text += QString("<tr><td bgcolor=\"%1\" colspan=3 align=\"center\"><br><b>%2</b><br></td></tr>\n").arg(darkbg ? "#303030" : "#d0d0d0").arg(category);

        for (KeyList::iterator j = list.begin(); j != list.end(); ++j) {

            QString actionName = j->actionName;

            QString shortcut = j->shortcut;
            shortcut.replace(" ", "&nbsp;");

            QString tip = j->tip;
            if (tip != "") tip = QString("<i>%1</i>").arg(tip);

            QString altdesc;
            if (!j->alternatives.empty()) {
                for (std::vector<QString>::iterator k = j->alternatives.begin();
                     k != j->alternatives.end(); ++k) {
                    QString alt = *k;
                    alt.replace(" ", "&nbsp;");
                    altdesc += tr("<i>or</i>&nbsp;<b>%1</b>").arg(alt);
                }
                altdesc = tr("</b>&nbsp;(%1)<b>").arg(altdesc);
            }

            text += QString("<tr><td>&nbsp;<b>%1%2</b></td><td>&nbsp;%3</td><td>%4</td></tr>\n")
                .arg(shortcut).arg(altdesc).arg(actionName).arg(tip);
        }
    }

    text += "</table></center>\n";

    m_text = new QTextEdit;
    m_text->setHtml(text);
    m_text->setReadOnly(true);

    m_dialog = new QDialog;
    m_dialog->setWindowTitle(tr("Sonic Visualiser: Key and Mouse Reference"));

    QVBoxLayout *layout = new QVBoxLayout;
    m_dialog->setLayout(layout);
    layout->addWidget(m_text);

    QDialogButtonBox *bb = new QDialogButtonBox(QDialogButtonBox::Close);
    connect(bb, SIGNAL(clicked(QAbstractButton *)), this, SLOT(dialogButtonClicked(QAbstractButton *)));
    layout->addWidget(bb);

    m_dialog->show();
    
    QDesktopWidget *desktop = QApplication::desktop();
    QRect available = desktop->availableGeometry();

    int width = available.width() * 3 / 5;
    int height = available.height() * 2 / 3;
    if (height < 450) {
        if (available.height() > 500) height = 450;
    }
    if (width < 600) {
        if (available.width() > 650) width = 600;
    }

    m_dialog->resize(width, height);
    m_dialog->raise();
}

void
KeyReference::dialogButtonClicked(QAbstractButton *)
{
    // only button is Close
    m_dialog->hide();
}