コード例 #1
0
  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;
  }