TextPainterWithPadding.java 文件源码

private TextLayout getCellTextLayout(LayerCell cell) {
    int orientation = editor.getTable().getStyle() & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT);
    TextLayout layout = new TextLayout(editor.getTable().getDisplay());
    layout.setOrientation(orientation);
    layout.setSpacing(Constants.SEGMENT_LINE_SPACING);
    layout.setFont(font);
    layout.setAscent(ascent);
    layout.setDescent(descent); // 和 StyledTextEditor 同步
    layout.setTabs(new int[] { tabWidth });

    Rectangle rectangle = cell.getBounds();
    int width = rectangle.width - leftPadding - rightPadding;
    width -= 1;
    if (wrapText && width > 0) {
        layout.setWidth(width);
    }

    String displayText = InnerTagUtil.resolveTag(innerTagFactory.parseInnerTag((String) cell.getDataValue()));
    if (XliffEditorParameter.getInstance().isShowNonpirnttingCharacter()) {
        displayText = displayText.replaceAll("\\n", Constants.LINE_SEPARATOR_CHARACTER + "\n");
        displayText = displayText.replaceAll("\\t", Constants.TAB_CHARACTER + "\u200B");
        displayText = displayText.replaceAll(" ", Constants.SPACE_CHARACTER + "\u200B");
    }
    layout.setText(displayText);
    List<InnerTagBean> innerTagBeans = innerTagFactory.getInnerTagBeans();
    for (InnerTagBean innerTagBean : innerTagBeans) {
        String placeHolder = placeHolderBuilder.getPlaceHolder(innerTagBeans, innerTagBeans.indexOf(innerTagBean));
        int start = displayText.indexOf(placeHolder);
        if (start == -1) {
            continue;
        }
        TextStyle style = new TextStyle();
        Point rect = tagRender.calculateTagSize(innerTagBean);
        style.metrics = new GlyphMetrics(rect.y, 0, rect.x + SEGMENT_LINE_SPACING * 2);
        layout.setStyle(style, start, start + placeHolder.length() - 1);
    }

    return layout;
}