ChartComposite.java 文件源码

/**
 * Opens a file chooser and gives the user an opportunity to save the chart
 * in PNG format.
 *
 * @throws IOException if there is an I/O error.
 */
public void doSaveAs() throws IOException {
    FileDialog fileDialog = new FileDialog(this.canvas.getShell(),
            SWT.SAVE);
    String[] extensions = {"*.png"};
    fileDialog.setFilterExtensions(extensions);
    String filename = fileDialog.open();
    if (filename != null) {
        if (isEnforceFileExtensions()) {
            if (!filename.endsWith(".png")) {
                filename = filename + ".png";
            }
        }
        //TODO replace getSize by getBounds ?
        ChartUtilities.saveChartAsPNG(new File(filename), this.chart,
                this.canvas.getSize().x, this.canvas.getSize().y);
    }
}