173 lines
4.4 KiB
Java
173 lines
4.4 KiB
Java
/*
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Reversound is used to get the music sheet of a piece from a music file.
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Copyright (C) 2014 Gabriel AUGENDRE
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Copyright (C) 2014 Gabriel DIENY
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Copyright (C) 2014 Arthur GAUCHER
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Copyright (C) 2014 Gabriel LEPETIT-AIMON
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package gui.viewer_state;
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import processing.buffer.Buffer;
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import processing.buffer.BufferEvent;
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import processing.buffer.BufferEventListener;
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/**
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* Created by gaby on 09/04/14.
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*
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* Classe controlleur s'interposant entre les buffers et leur visualisateur,
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* il gère les mises à jour différée dans le temps et les modifications de fenêtres du visualisateur
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*/
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public class BufferViewerState extends ViewerState implements BufferEventListener{
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public enum Type{
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SINGLE_FRAME,
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CONTINUOUS_WINDOW,
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ALL_DATA,
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NO_DATA
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}
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final private Type type;
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final private boolean bufferSizeSensible;
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private int idMin=0, idMax=0;
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private Buffer buffer;
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private BufferViewerState(Buffer buffer, Viewer viewer, Type type, boolean bufferSizeSensible){
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super(viewer);
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this.type = type;
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this.bufferSizeSensible = bufferSizeSensible;
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this.buffer = buffer;
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buffer.addBufferListener(this);
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init();
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}
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static public BufferViewerState singleFrameWindow( Viewer viewer, Buffer buffer){
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return new BufferViewerState(buffer, viewer, Type.SINGLE_FRAME, false);
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}
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static public BufferViewerState continousWindow(Viewer viewer, Buffer buffer){
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return new BufferViewerState(buffer, viewer, Type.CONTINUOUS_WINDOW, false);
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}
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static public BufferViewerState allDataWindow(Viewer viewer, Buffer buffer){
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return new BufferViewerState(buffer, viewer, Type.ALL_DATA, true);
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}
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static public BufferViewerState sizeSensible(Viewer viewer, Buffer buffer){
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return new BufferViewerState(buffer, viewer, Type.NO_DATA, true);
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}
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public void setWindow(int idMin, int idMax){
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this.idMax = idMax;
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this.idMin = idMin;
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invalidate();
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}
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public void setSingleFrame(int id){
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idMax = id;
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idMin = id;
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invalidate();
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}
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public Type getType(){
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return type;
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}
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public int getMaximumIndex(){
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if(type==Type.CONTINUOUS_WINDOW)
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return idMax;
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return -1;
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}
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public int getMinimumIndex(){
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if(type==Type.CONTINUOUS_WINDOW)
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return idMin;
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return -1;
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}
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public int getSingleIndex(){
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if(type == Type.SINGLE_FRAME)
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return idMin;
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return -1;
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}
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public boolean windowContains(int sampleID){
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switch (type){
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case NO_DATA:
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return false;
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case ALL_DATA:
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return true;
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case CONTINUOUS_WINDOW:
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return sampleID >= idMin && sampleID <= idMax;
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case SINGLE_FRAME:
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return sampleID == idMin;
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}
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return false;
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}
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@Override
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public void bufferEvent(BufferEvent e) {
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if (e.getType() == BufferEvent.Type.SAMPLE_ADDED || e.getType() == BufferEvent.Type.SAMPLE_CHANGED){
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if (windowContains(e.getSampleID()))
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setState(State.UPDATE_NEEDED, slowingFactorOnDataChange());
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}else if(e.getType()== BufferEvent.Type.SAMPLE_DELETED){
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if(type==Type.SINGLE_FRAME)
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if(e.getSampleID()==idMin)
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setState(State.CLEAN_NEEDED, slowingFactorOnDataChange());
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else if(windowContains(e.getSampleID()))
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setState(State.UPDATE_NEEDED, slowingFactorOnDataChange());
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}else if(e.getType()== BufferEvent.Type.INVALIDATE)
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invalidate();
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if(bufferSizeSensible&&(e.getType()== BufferEvent.Type.SAMPLE_ADDED||e.getType()== BufferEvent.Type.SAMPLE_DELETED))
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setState(State.UPDATE_NEEDED, slowingFactorOnDataChange());
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}
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@Override
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protected boolean canDraw() {
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switch(type){
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case CONTINUOUS_WINDOW:
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return idMin< buffer.size();
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case SINGLE_FRAME:
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return buffer.get(idMin) != null;
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}
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return !buffer.isEmpty();
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}
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@Override
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protected void visibilityChanged() {
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if(visibility)
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buffer.addBufferListener(this);
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else
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buffer.removeBufferListener(this);
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}
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public Buffer getBuffer() {
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return buffer;
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}
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public boolean isSizeSensitive(){
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return bufferSizeSensible;
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}
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}
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