editviewbase.cpp

LINUX下的混音软件

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

/*
    Rosegarden
    A MIDI and audio sequencer and musical notation editor.
 
    This program is Copyright 2000-2007
        Guillaume Laurent   <[e-mail]>,
        Chris Cannam        <[e-mail]>,
        Richard Bown        <[e-mail]>
 
    The moral rights of Guillaume Laurent, Chris Cannam, and Richard
    Bown to claim authorship of this work have been asserted.
 
    Other copyrights also apply to some parts of this work.  Please
    see the AUTHORS file and individual file headers for details.
 
    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 "EditViewBase.h"
#include <qlayout.h>
#include <kapplication.h>

#include <klocale.h>
#include <kstddirs.h>
#include "misc/Debug.h"
#include "base/Clipboard.h"
#include "base/Event.h"
#include "base/NotationTypes.h"
#include "base/Segment.h"
#include "commands/segment/SegmentReconfigureCommand.h"
#include "document/MultiViewCommandHistory.h"
#include "document/RosegardenGUIDoc.h"
#include "EditToolBox.h"
#include "EditTool.h"
#include "EditView.h"
#include "gui/dialogs/ConfigureDialog.h"
#include "gui/dialogs/TimeDialog.h"
#include "gui/general/EditViewTimeSigNotifier.h"
#include "gui/kdeext/KTmpStatusMsg.h"
#include <kaction.h>
#include <kcommand.h>
#include <kconfig.h>
#include <kdockwidget.h>
#include <kedittoolbar.h>
#include <kglobal.h>
#include <kkeydialog.h>
#include <kmainwindow.h>
#include <kstatusbar.h>
#include <kstdaccel.h>
#include <kstdaction.h>
#include <kxmlguiclient.h>
#include <qaccel.h>
#include <qcanvas.h>
#include <qdialog.h>
#include <qframe.h>
#include <qiconset.h>
#include <qobject.h>
#include <qpixmap.h>
#include <qstring.h>
#include <qwidget.h>


namespace Rosegarden
{

bool EditViewBase::m_inPaintEvent = false;
const unsigned int EditViewBase::ID_STATUS_MSG = 1;
const unsigned int EditViewBase::NbLayoutRows = 6;

EditViewBase::EditViewBase(RosegardenGUIDoc *doc,
                           std::vector<Segment *> segments,
                           unsigned int cols,
                           QWidget *parent, const char *name) :
        KDockMainWindow(parent, name),
        m_viewNumber( -1),
        m_viewLocalPropertyPrefix(makeViewLocalPropertyPrefix()),
        m_config(kapp->config()),
        m_doc(doc),
        m_segments(segments),
        m_tool(0),
        m_toolBox(0),
        m_mainDockWidget(0),
        m_centralFrame(0),
        m_grid(0),
        m_mainCol(cols - 1),
        m_compositionRefreshStatusId(doc->getComposition().getNewRefreshStatusId()),
        m_needUpdate(false),
        m_pendingPaintEvent(0),
        m_havePendingPaintEvent(false),
        m_accelerators(0),
        m_configDialogPageIndex(0),
        m_inCtor(true),
        m_timeSigNotifier(new EditViewTimeSigNotifier(doc))
{

    QPixmap dummyPixmap; // any icon will do
    m_mainDockWidget = createDockWidget("Rosegarden EditView DockWidget", dummyPixmap,
                                        0L, "editview_dock_widget");
    // allow others to dock to the left and right sides only
    m_mainDockWidget->setDockSite(KDockWidget::DockLeft | KDockWidget::DockRight);
    // forbit docking abilities of m_mainDockWidget itself
    m_mainDockWidget->setEnableDocking(KDockWidget::DockNone);
    setView(m_mainDockWidget); // central widget in a KDE mainwindow
    setMainDockWidget(m_mainDockWidget); // master dockwidget

    m_centralFrame = new QFrame(m_mainDockWidget, "centralframe");
    m_grid = new QGridLayout(m_centralFrame, NbLayoutRows, cols);

    m_mainDockWidget->setWidget(m_centralFrame);

    initSegmentRefreshStatusIds();

    m_doc->attachEditView(this);

    QObject::connect
    (getCommandHistory(), SIGNAL(commandExecuted()),
     this, SLOT(update()));

    QObject::connect
    (getCommandHistory(), SIGNAL(commandExecuted()),
     this, SLOT(slotTestClipboard()));

    // create accelerators
    //
    m_accelerators = new QAccel(this);
}

EditViewBase::~EditViewBase()
{
    delete m_timeSigNotifier;

    m_doc->detachEditView(this);

    getCommandHistory()->detachView(actionCollection());
    m_viewNumberPool.erase(m_viewNumber);
    slotSaveOptions();
}

void EditViewBase::slotSaveOptions()
{}

void EditViewBase::readOptions()
{
    getToggleAction("options_show_statusbar")->setChecked(!statusBar()->isHidden());
    getToggleAction("options_show_toolbar")->setChecked(!toolBar()->isHidden());
}

void EditViewBase::setupActions(QString rcFileName, bool haveClipboard)
{
    setRCFileName(rcFileName);

    // Actions all edit views will have

    KStdAction::showToolbar(this, SLOT(slotToggleToolBar()),
                            actionCollection(), "options_show_toolbar");

    KStdAction::showStatusbar(this, SLOT(slotToggleStatusBar()),
                              actionCollection(), "options_show_statusbar");

    KStdAction::preferences(this,
                            SLOT(slotConfigure()),
                            actionCollection());

    KStdAction::keyBindings(this,
                            SLOT(slotEditKeys()),
                            actionCollection());

    KStdAction::configureToolbars(this,
                                  SLOT(slotEditToolbars()),
                                  actionCollection());


    // File menu
    KStdAction::save (this, SIGNAL(saveFile()), actionCollection());
    KStdAction::close(this, SLOT(slotCloseWindow()), actionCollection());

    if (haveClipboard) {
        KStdAction::cut (this, SLOT(slotEditCut()), actionCollection());
        KStdAction::copy (this, SLOT(slotEditCopy()), actionCollection());
        KStdAction::paste (this, SLOT(slotEditPaste()), actionCollection());
    }

    new KToolBarPopupAction(i18n("Und&o"),
                            "undo",
                            KStdAccel::key(KStdAccel::Undo),
                            actionCollection(),
                            KStdAction::stdName(KStdAction::Undo));

    new KToolBarPopupAction(i18n("Re&do"),
                            "redo",
                            KStdAccel::key(KStdAccel::Redo),
                            actionCollection(),
                            KStdAction::stdName(KStdAction::Redo));

    QString pixmapDir = KGlobal::dirs()->findResource("appdata", "pixmaps/");

    QCanvasPixmap pixmap(pixmapDir + "/toolbar/matrix.png");
    QIconSet icon = QIconSet(pixmap);
    new KAction(i18n("Open in Matri&x Editor"), icon, 0, this,
                SLOT(slotOpenInMatrix()), actionCollection(),
                "open_in_matrix");

    pixmap.load(pixmapDir + "/toolbar/matrix-percussion.png");
    icon = QIconSet(pixmap);
    new KAction(i18n("Open in &Percussion Matrix Editor"), icon, 0, this,
                SLOT(slotOpenInPercussionMatrix()), actionCollection(),
                "open_in_percussion_matrix");

    pixmap.load(pixmapDir + "/toolbar/notation.png");
    icon = QIconSet(pixmap);
    new KAction(i18n("Open in &Notation Editor"), icon, 0, this,
                SLOT(slotOpenInNotation()), actionCollection(),
                "open_in_notation");

    pixmap.load(pixmapDir + "/toolbar/eventlist.png");
    icon = QIconSet(pixmap);
    new KAction(i18n("Open in &Event List Editor"), icon, 0, this,
                SLOT(slotOpenInEventList()), actionCollection(),
                "open_in_event_list");

    new KAction(i18n("Set Segment Start Time..."), 0, this,
                SLOT(slotSetSegmentStartTime()), actionCollection(),
                "set_segment_start");

    new KAction(i18n("Set Segment Duration..."), 0, this,
                SLOT(slotSetSegmentDuration()), actionCollection(),
                "set_segment_duration");

    // add undo and redo to edit menu and toolbar
    getCommandHistory()->attachView(actionCollection());

}

void EditViewBase::slotConfigure()
{
    ConfigureDialog *configDlg =
        new ConfigureDialog(getDocument(), m_config, this);

    configDlg->showPage(getConfigDialogPageIndex());
    configDlg->show();
}

void EditViewBase::slotEditKeys()
{
    KKeyDialog::configure(actionCollection());
}

void EditViewBase::slotEditToolbars()
{
    KEditToolbar dlg(actionCollection(), getRCFileName());

    connect(&dlg, SIGNAL(newToolbarConfig()),
            SLOT(slotUpdateToolbars()));

    dlg.exec();
}

void EditViewBase::slotUpdateToolbars()
{
    createGUI(getRCFileName());
    //m_viewToolBar->setChecked(!toolBar()->isHidden());
}

void
EditViewBase::slotOpenInNotation()
{

    emit openInNotation(m_segments);
}

void
EditViewBase::slotOpenInMatrix()
{
    emit openInMatrix(m_segments);
}

void
EditViewBase::slotOpenInPercussionMatrix()
{
    emit openInPercussionMatrix(m_segments);
}

void
EditViewBase::slotOpenInEventList()
{
    emit openInEventList(m_segments);
}

std::set<int> EditViewBase::m_viewNumberPool;

std::string
EditViewBase::makeViewLocalPropertyPrefix()
{
    static char buffer[100];
    int i = 0;
    while (m_viewNumberPool.find(i) != m_viewNumberPool.end())
        ++i;
    m_viewNumber = i;
    m_viewNumberPool.insert(i);
    sprintf(buffer, "View%d::", i);
    return buffer;
}

void EditViewBase::paintEvent(QPaintEvent* e)
{
    // It is possible for this function to be called re-entrantly,
    // because a re-layout procedure may deliberately ask the event
    // loop to process some more events so as to keep the GUI looking
    // responsive.  If that happens, we remember the events that came
    // in in the middle of one paintEvent call and process their union
    // again at the end of the call.
    /*
        if (m_inPaintEvent) {
    	NOTATION_DEBUG << "EditViewBase::paintEvent: in paint event already" << endl;
    	if (e) {
    	    if (m_havePendingPaintEvent) {
    		if (m_pendingPaintEvent) {
    		    QRect r = m_pendingPaintEvent->rect().unite(e->rect());
    		    *m_pendingPaintEvent = QPaintEvent(r);
    		} else {
    		    m_pendingPaintEvent = new QPaintEvent(*e);
    		}
    	    } else {
    		m_pendingPaintEvent = new QPaintEvent(*e);
    	    }
    	}
    	m_havePendingPaintEvent = true;
    	return;
        }
    */ 
    //!!!    m_inPaintEvent = true;

    if (isCompositionModified()) {

        // Check if one of the segments we display has been removed
        // from the composition.
        //
        // For the moment we'll have to close the view if any of the
        // segments we handle has been deleted.

        for (unsigned int i = 0; i < m_segments.size(); ++i) {

            if (!m_segments[i]->getComposition()) {
                // oops, I think we've been deleted
                close();
                return ;
            }
        }
    }