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159 lines
4.4 KiB
159 lines
4.4 KiB
/*
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Rosegarden
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A MIDI and audio sequencer and musical notation editor.
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This program is Copyright 2000-2008
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Guillaume Laurent <glaurent@telegraph-road.org>,
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Chris Cannam <cannam@all-day-breakfast.com>,
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Richard Bown <richard.bown@ferventsoftware.com>
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The moral rights of Guillaume Laurent, Chris Cannam, and Richard
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Bown to claim authorship of this work have been asserted.
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Other copyrights also apply to some parts of this work. Please
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see the AUTHORS file and individual file headers for details.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License as
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published by the Free Software Foundation; either version 2 of the
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License, or (at your option) any later version. See the file
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COPYING included with this distribution for more information.
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*/
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#include "MatrixElement.h"
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#include "misc/Debug.h"
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#include "base/Event.h"
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#include "base/NotationTypes.h"
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#include "base/ViewElement.h"
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#include "gui/general/GUIPalette.h"
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#include "QCanvasMatrixDiamond.h"
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#include "QCanvasMatrixRectangle.h"
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#include <tqbrush.h>
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#include <tqcanvas.h>
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#include <tqcolor.h>
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namespace Rosegarden
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{
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MatrixElement::MatrixElement(Event *event, bool drum) :
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ViewElement(event),
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m_canvasRect(drum ?
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new QCanvasMatrixDiamond(*this, 0) :
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new QCanvasMatrixRectangle(*this, 0)),
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m_overlapRectangles(NULL)
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{
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// MATRIX_DEBUG << "new MatrixElement "
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// << this << " wrapping " << event << endl;
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}
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MatrixElement::~MatrixElement()
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{
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// MATRIX_DEBUG << "MatrixElement " << this << "::~MatrixElement() wrapping "
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// << event() << endl;
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m_canvasRect->hide();
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delete m_canvasRect;
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removeOverlapRectangles();
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}
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void MatrixElement::setCanvas(TQCanvas* c)
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{
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if (!m_canvasRect->canvas()) {
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m_canvasRect->setCanvas(c);
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// We set this by velocity now (matrixstaff.cpp)
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//
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//m_canvasRect->setBrush(RosegardenGUIColours::MatrixElementBlock);
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m_canvasRect->setPen(GUIPalette::getColour(GUIPalette::MatrixElementBorder));
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m_canvasRect->show();
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}
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}
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bool MatrixElement::isNote() const
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{
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return event()->isa(Note::EventType);
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}
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void MatrixElement::drawOverlapRectangles()
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{
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if (m_overlapRectangles) removeOverlapRectangles();
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TQRect elRect = m_canvasRect->rect();
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TQCanvasItemList
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itemList = m_canvasRect->canvas()->collisions(elRect);
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TQCanvasItemList::Iterator it;
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MatrixElement* mel = 0;
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for (it = itemList.begin(); it != itemList.end(); ++it) {
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QCanvasMatrixRectangle *mRect = 0;
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if ((mRect = dynamic_cast<QCanvasMatrixRectangle*>(*it))) {
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// Element does'nt collide with itself
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if (mRect == m_canvasRect) continue;
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TQRect rect = mRect->rect() & elRect;
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if (!rect.isEmpty()) {
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if (!m_overlapRectangles) {
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m_overlapRectangles = new OverlapRectangles();
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}
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TQCanvasRectangle *
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overlap = new TQCanvasRectangle(rect, m_canvasRect->canvas());
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overlap->setBrush(GUIPalette::getColour(GUIPalette::MatrixOverlapBlock));
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overlap->setZ(getCanvasZ() + 1);
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overlap->show();
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m_overlapRectangles->push_back(overlap);
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}
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}
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}
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}
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void MatrixElement::redrawOverlaps(TQRect rect)
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{
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TQCanvasItemList
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itemList = m_canvasRect->canvas()->collisions(rect);
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TQCanvasItemList::Iterator it;
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MatrixElement* mel = 0;
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for (it = itemList.begin(); it != itemList.end(); ++it) {
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QCanvasMatrixRectangle *mRect = 0;
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if ((mRect = dynamic_cast<QCanvasMatrixRectangle*>(*it))) {
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mRect->getMatrixElement().drawOverlapRectangles();
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}
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}
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}
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void MatrixElement::removeOverlapRectangles()
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{
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if (!m_overlapRectangles) return;
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OverlapRectangles::iterator it;
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for (it = m_overlapRectangles->begin(); it != m_overlapRectangles->end(); ++it) {
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(*it)->hide();
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delete *it;
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}
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delete m_overlapRectangles;
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m_overlapRectangles = NULL;
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}
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bool MatrixElement::getVisibleRectangle(TQRect &rectangle)
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{
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if (m_canvasRect && m_canvasRect->isVisible()) {
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rectangle = m_canvasRect->rect();
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return true;
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}
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return false;
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}
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}
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