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Diffstat (limited to 'src/gui/kdeext/QCanvasSimpleSprite.cpp')
| -rw-r--r-- | src/gui/kdeext/QCanvasSimpleSprite.cpp | 217 |
1 files changed, 217 insertions, 0 deletions
diff --git a/src/gui/kdeext/QCanvasSimpleSprite.cpp b/src/gui/kdeext/QCanvasSimpleSprite.cpp new file mode 100644 index 0000000..537cc62 --- /dev/null +++ b/src/gui/kdeext/QCanvasSimpleSprite.cpp @@ -0,0 +1,217 @@ +// -*- c-basic-offset: 4 -*- + +/* + Rosegarden + A sequencer and musical notation editor. + + This program is Copyright 2000-2008 + Guillaume Laurent <[email protected]>, + Chris Cannam <[email protected]>, + Richard Bown <[email protected]> + + The moral right of the authors to claim authorship of this work + has been asserted. + + 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 <vector> +#include "misc/Debug.h" + +#include <qpainter.h> + +#include "QCanvasSimpleSprite.h" + +namespace Rosegarden { + +QCanvasSimpleSprite::QCanvasSimpleSprite(QPixmap *pixmap, QCanvas *canvas) + : QCanvasSprite(0, canvas), + m_pixmapArray(0) +{ + m_pixmapArray = makePixmapArray(pixmap); + setSequence(m_pixmapArray); +} + +QCanvasSimpleSprite::QCanvasSimpleSprite(QCanvasPixmap *pixmap, QCanvas *canvas) + : QCanvasSprite(0, canvas), + m_pixmapArray(0) +{ + m_pixmapArray = makePixmapArray(pixmap); + setSequence(m_pixmapArray); +} + +QCanvasSimpleSprite::QCanvasSimpleSprite(const QString &pixmapfile, + QCanvas *canvas) + : QCanvasSprite(0, canvas), + m_pixmapArray(0) +{ + m_pixmapArray = makePixmapArray(pixmapfile); + setSequence(m_pixmapArray); +} + +QCanvasSimpleSprite::QCanvasSimpleSprite(QCanvas *canvas) + : QCanvasSprite(0, canvas), + m_pixmapArray(0) +{ + QCanvasPixmapArray* tmpArray = makePixmapArray(new QPixmap()); + setSequence(tmpArray); +} + + +QCanvasSimpleSprite::~QCanvasSimpleSprite() +{ + PixmapArrayGC::registerForDeletion(m_pixmapArray); + m_pixmapArray = 0; + + // We can't delete m_pixmapArray or we get a core dump. + // + // The reason I think is that after the QCanvasSprite is deleted, + // it is removed from the QCanvas, which therefore needs the + // pixmaps to know how to update itself (the crash is in + // QCanvas::removeChunks(), usually). + // + // So instead we have to do this GCish + // thingy. PixmapArrayGC::deleteAll() is called by + // NotationView::redoLayout +} + +QCanvasPixmapArray* +QCanvasSimpleSprite::makePixmapArray(QPixmap *pixmap) +{ + QList<QPixmap> pixlist; + pixlist.setAutoDelete(true); // the QCanvasPixmapArray creates its + // own copies of the pixmaps, so we + // can delete the one we're passed + pixlist.append(pixmap); + + QList<QPoint> spotlist; + spotlist.setAutoDelete(true); + spotlist.append(new QPoint(0, 0)); + + return new QCanvasPixmapArray(pixlist, spotlist); +} + +QCanvasPixmapArray* +QCanvasSimpleSprite::makePixmapArray(QCanvasPixmap *pixmap) +{ + QList<QPixmap> pixlist; + pixlist.setAutoDelete(true); // the QCanvasPixmapArray creates its + // own copies of the pixmaps, so we + // can delete the one we're passed + pixlist.append(pixmap); + + QList<QPoint> spotlist; + spotlist.setAutoDelete(true); + spotlist.append(new QPoint(pixmap->offsetX(), pixmap->offsetY())); + + return new QCanvasPixmapArray(pixlist, spotlist); +} + +QCanvasPixmapArray* +QCanvasSimpleSprite::makePixmapArray(const QString &pixmapfile) +{ + return new QCanvasPixmapArray(pixmapfile); +} + +////////////////////////////////////////////////////////////////////// + +QCanvasNotationSprite::QCanvasNotationSprite(NotationElement& n, + QPixmap* pixmap, + QCanvas* canvas) + : QCanvasSimpleSprite(pixmap, canvas), + m_notationElement(n) +{} + +QCanvasNotationSprite::QCanvasNotationSprite(NotationElement& n, + QCanvasPixmap* pixmap, + QCanvas* canvas) + : QCanvasSimpleSprite(pixmap, canvas), + m_notationElement(n) + +{} + +QCanvasNotationSprite::~QCanvasNotationSprite() +{} + + +QCanvasNonElementSprite::QCanvasNonElementSprite(QPixmap *pixmap, + QCanvas *canvas) : + QCanvasSimpleSprite(pixmap, canvas) +{} + +QCanvasNonElementSprite::QCanvasNonElementSprite(QCanvasPixmap *pixmap, + QCanvas *canvas) : + QCanvasSimpleSprite(pixmap, canvas) +{} + +QCanvasNonElementSprite::~QCanvasNonElementSprite() +{} + +QCanvasTimeSigSprite::QCanvasTimeSigSprite(double layoutX, + QPixmap *pixmap, + QCanvas *canvas) : + QCanvasNonElementSprite(pixmap, canvas), + m_layoutX(layoutX) +{} + +QCanvasTimeSigSprite::QCanvasTimeSigSprite(double layoutX, + QCanvasPixmap *pixmap, + QCanvas *canvas) : + QCanvasNonElementSprite(pixmap, canvas), + m_layoutX(layoutX) +{} + +QCanvasTimeSigSprite::~QCanvasTimeSigSprite() +{} + + +QCanvasStaffNameSprite::QCanvasStaffNameSprite(QPixmap *pixmap, + QCanvas *canvas) : + QCanvasNonElementSprite(pixmap, canvas) +{} + +QCanvasStaffNameSprite::QCanvasStaffNameSprite(QCanvasPixmap *pixmap, + QCanvas *canvas) : + QCanvasNonElementSprite(pixmap, canvas) +{} + +QCanvasStaffNameSprite::~QCanvasStaffNameSprite() +{} + + +////////////////////////////////////////////////////////////////////// + +void PixmapArrayGC::registerForDeletion(QCanvasPixmapArray* array) +{ + m_pixmapArrays.push_back(array); +} + +void PixmapArrayGC::deleteAll() +{ + RG_DEBUG << "PixmapArrayGC::deleteAll() : " + << m_pixmapArrays.size() << " pixmap arrays to delete\n"; + + static unsigned long total = 0; + + for (unsigned int i = 0; i < m_pixmapArrays.size(); ++i) { + QCanvasPixmapArray *array = m_pixmapArrays[i]; + QPixmap *pixmap = array->image(0); + if (pixmap) { + total += pixmap->width() * pixmap->height(); + // NOTATION_DEBUG << "PixmapArrayGC::deleteAll(): " << pixmap->width() << "x" << pixmap->height() << " (" << (pixmap->width()*pixmap->height()) << " px, " << total << " total)" << endl; + } + delete m_pixmapArrays[i]; + } + + m_pixmapArrays.clear(); +} + +std::vector<QCanvasPixmapArray*> PixmapArrayGC::m_pixmapArrays; + +} + +////////////////////////////////////////////////////////////////////// |