TerminalBridge.java 文件源码

private int fontSizeCompare(float sizeDp, int cols, int rows, int width, int height) {
    // read new metrics to get exact pixel dimensions
    defaultPaint.setTextSize((int) (sizeDp * this.displayDensity + 0.5f));
    FontMetrics fm = defaultPaint.getFontMetrics();

    float[] widths = new float[1];
    defaultPaint.getTextWidths("X", widths);
    int termWidth = (int) widths[0] * cols;
    int termHeight = (int) Math.ceil(fm.descent - fm.top) * rows;

    Log.d("fontsize", String.format("font size %fdp resulted in %d x %d", sizeDp, termWidth, termHeight));

    // Check to see if it fits in resolution specified.
    if (termWidth > width || termHeight > height)
        return 1;

    if (termWidth == width || termHeight == height)
        return 0;

    return -1;
}