protected TGImage getBuffer() {
if (this.clientArea != null) {
this.bufferDisposer.update(this.clientArea.width, this.clientArea.height);
if (this.buffer == null || this.buffer.isDisposed()) {
String[] names = null;
TGMeasure measure = getMeasure();
this.maxNote = 0;
this.minNote = 127;
if (TuxGuitar.instance()
.getSongManager()
.isPercussionChannel(measure.getTrack().getChannelId())) {
names = new String[PERCUSSIONS.length];
for (int i = 0; i < names.length; i++) {
this.minNote = Math.min(this.minNote, PERCUSSIONS[i].getValue());
this.maxNote = Math.max(this.maxNote, PERCUSSIONS[i].getValue());
names[i] = PERCUSSIONS[names.length - i - 1].getName();
}
} else {
for (int sNumber = 1; sNumber <= measure.getTrack().stringCount(); sNumber++) {
TGString string = measure.getTrack().getString(sNumber);
this.minNote = Math.min(this.minNote, string.getValue());
this.maxNote = Math.max(this.maxNote, (string.getValue() + 20));
}
names = new String[this.maxNote - this.minNote + 1];
for (int i = 0; i < names.length; i++) {
names[i] = (NOTE_NAMES[(this.maxNote - i) % 12] + ((this.maxNote - i) / 12));
}
}
int minimumNameWidth = 110;
int minimumNameHeight = 0;
TGPainter painter = new TGPainterImpl(new GC(this.dialog.getDisplay()));
painter.setFont(new TGFontImpl(this.config.getFont()));
for (int i = 0; i < names.length; i++) {
int fmWidth = painter.getFMWidth(names[i]);
if (fmWidth > minimumNameWidth) {
minimumNameWidth = fmWidth;
}
int fmHeight = painter.getFMHeight();
if (fmHeight > minimumNameHeight) {
minimumNameHeight = fmHeight;
}
}
painter.dispose();
int cols = measure.getTimeSignature().getNumerator();
int rows = (this.maxNote - this.minNote);
this.leftSpacing = minimumNameWidth + 10;
this.lineHeight =
Math.max(
minimumNameHeight,
((this.clientArea.height - (BORDER_HEIGHT * 2.0f)) / (rows + 1.0f)));
this.timeWidth =
Math.max(
(10
* (TGDuration.SIXTY_FOURTH
/ measure.getTimeSignature().getDenominator().getValue())),
((this.clientArea.width - this.leftSpacing) / cols));
this.bufferWidth = this.leftSpacing + (this.timeWidth * cols);
this.bufferHeight = (this.lineHeight * (rows + 1));
this.buffer =
new TGImageImpl(
this.editor.getDisplay(),
Math.round(this.bufferWidth),
Math.round(this.bufferHeight));
painter = this.buffer.createPainter();
painter.setFont(new TGFontImpl(this.config.getFont()));
painter.setForeground(new TGColorImpl(this.config.getColorForeground()));
for (int i = 0; i <= rows; i++) {
painter.setBackground(new TGColorImpl(this.config.getColorLine(i % 2)));
painter.initPath(TGPainter.PATH_FILL);
painter.setAntialias(false);
painter.addRectangle(0, (i * this.lineHeight), this.bufferWidth, this.lineHeight);
painter.closePath();
painter.drawString(
names[i],
5,
(Math.round((i * this.lineHeight))
+ Math.round((this.lineHeight - minimumNameHeight) / 2)));
}
for (int i = 0; i < cols; i++) {
float colX = this.leftSpacing + (i * this.timeWidth);
float divisionWidth = (this.timeWidth / this.grids);
for (int j = 0; j < this.grids; j++) {
if (j == 0) {
painter.setLineStyleSolid();
} else {
painter.setLineStyleDot();
}
painter.initPath();
painter.setAntialias(false);
painter.moveTo(Math.round(colX + (j * divisionWidth)), 0);
painter.lineTo(Math.round(colX + (j * divisionWidth)), this.bufferHeight);
painter.closePath();
}
}
painter.dispose();
}
}
return this.buffer;
}