package logbook.gui;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.nio.file.Path;
import java.nio.file.Paths;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Timer;
import java.util.TimerTask;
import javax.imageio.IIOImage;
import javax.imageio.ImageIO;
import javax.imageio.ImageWriteParam;
import javax.imageio.ImageWriter;
import javax.imageio.stream.ImageOutputStream;
import logbook.config.AppConfig;
import logbook.constants.AppConstants;
import logbook.gui.listener.SelectedListener;
import logbook.gui.logic.LayoutLogic;
import logbook.util.AwtUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.graphics.Font;
import org.eclipse.swt.graphics.FontData;
import org.eclipse.swt.graphics.GC;
import org.eclipse.swt.graphics.Image;
import org.eclipse.swt.graphics.Rectangle;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Button;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Dialog;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Spinner;
import org.eclipse.swt.widgets.Text;
/**
* キャプチャダイアログ
*
*/
public final class CaptureDialog extends Dialog {
private static class LoggerHolder {
/** ロガー */
private static final Logger LOG = LogManager.getLogger(CaptureDialog.class);
}
private Shell shell;
private Composite composite;
private Text text;
private Button capture;
private Button interval;
private Spinner intervalms;
private Rectangle rectangle;
private Timer timer;
private boolean isAlive;
private Font font;
/**
* Create the dialog.
* @param parent
*/
public CaptureDialog(Shell parent) {
super(parent, SWT.CLOSE | SWT.TITLE | SWT.MIN | SWT.RESIZE);
this.setText("キャプチャ");
}
/**
* Open the dialog.
*/
public void open() {
try {
this.createContents();
this.shell.open();
this.shell.layout();
Display display = this.getParent().getDisplay();
while (!this.shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
} finally {
// タイマーを停止させる
if (this.timer != null) {
this.timer.cancel();
}
// フォントを開放
if (this.font != null) {
this.font.dispose();
}
}
}
/**
* Create contents of the dialog.
*/
private void createContents() {
// シェル
this.shell = new Shell(this.getParent(), this.getStyle());
this.shell.setText(this.getText());
// レイアウト
GridLayout glShell = new GridLayout(1, false);
glShell.horizontalSpacing = 1;
glShell.marginHeight = 1;
glShell.marginWidth = 1;
glShell.verticalSpacing = 1;
this.shell.setLayout(glShell);
// 太字にするためのフォントデータを作成する
FontData defaultfd = this.shell.getFont().getFontData()[0];
FontData fd = new FontData(defaultfd.getName(), defaultfd.getHeight(), SWT.BOLD);
this.font = new Font(Display.getDefault(), fd);
// コンポジット
Composite rangeComposite = new Composite(this.shell, SWT.NONE);
rangeComposite.setLayout(new GridLayout(2, false));
// 範囲設定
this.text = new Text(rangeComposite, SWT.BORDER | SWT.READ_ONLY);
GridData gdText = new GridData(SWT.FILL, SWT.CENTER, true, false, 1, 1);
gdText.widthHint = 120;
this.text.setLayoutData(gdText);
this.text.setText("範囲が未設定です");
Button button = new Button(rangeComposite, SWT.NONE);
button.setText("範囲を選択");
button.addSelectionListener(new SelectRectangleAdapter());
// コンポジット
this.composite = new Composite(this.shell, SWT.NONE);
GridLayout loglayout = new GridLayout(3, false);
this.composite.setLayout(loglayout);
this.composite.setLayoutData(new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL));
// 周期設定
this.interval = new Button(this.composite, SWT.CHECK);
this.interval.addSelectionListener((SelectedListener) e -> {
this.capture.setText(getCaptureButtonText(false, this.interval.getSelection()));
});
this.interval.setText("周期");
this.intervalms = new Spinner(this.composite, SWT.BORDER);
this.intervalms.setMaximum(60000);
this.intervalms.setMinimum(100);
this.intervalms.setSelection(1000);
this.intervalms.setIncrement(100);
Label label = new Label(this.composite, SWT.NONE);
label.setText("ミリ秒");
this.capture = new Button(this.shell, SWT.NONE);
this.capture.setFont(this.font);
GridData gdCapture = new GridData(GridData.FILL_HORIZONTAL | GridData.FILL_VERTICAL);
gdCapture.horizontalSpan = 3;
gdCapture.heightHint = 64;
this.capture.setLayoutData(gdCapture);
this.capture.setEnabled(false);
this.capture.setText(getCaptureButtonText(false, this.interval.getSelection()));
this.capture.addSelectionListener(new CaptureStartAdapter());
this.shell.pack();
}
/**
* キャプチャボタンの文字を取得します
*
* @param isrunning
* @param interval
* @return
*/
private static String getCaptureButtonText(boolean isrunning, boolean interval) {
if (isrunning && interval) {
return "停 止";
} else if (interval) {
return "開 始";
} else {
return "キャプチャ";
}
}
/**
* 範囲の選択を押した時
*
*/
public final class SelectRectangleAdapter extends SelectionAdapter {
/** ダイアログが完全に消えるまで待つ時間 */
private static final int WAIT = 250;
@Override
public void widgetSelected(SelectionEvent paramSelectionEvent) {
try {
Display display = Display.getDefault();
// ダイアログを非表示にする
CaptureDialog.this.shell.setVisible(false);
// 消えるまで待つ
Thread.sleep(WAIT);
// ディスプレイに対してGraphics Contextを取得する(フルスクリーンキャプチャ)
GC gc = new GC(display);
Image image = new Image(display, display.getBounds());
gc.copyArea(image, 0, 0);
gc.dispose();
try {
// 範囲を取得する
Rectangle rectangle = new FullScreenDialog(CaptureDialog.this.shell, image,
CaptureDialog.this.shell.getMonitor())
.open();
if ((rectangle != null) && (rectangle.width > 1) && (rectangle.height > 1)) {
CaptureDialog.this.rectangle = rectangle;
CaptureDialog.this.text.setText("(" + rectangle.x + "," + rectangle.y + ")-("
+ (rectangle.x + rectangle.width) + "," + (rectangle.y + rectangle.height) + ")");
CaptureDialog.this.capture.setEnabled(true);
}
} finally {
image.dispose();
}
CaptureDialog.this.shell.setVisible(true);
CaptureDialog.this.shell.setActive();
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* キャプチャボタンを押した時
*
*/
public final class CaptureStartAdapter extends SelectionAdapter {
@Override
public void widgetSelected(SelectionEvent e) {
Timer timer = CaptureDialog.this.timer;
Rectangle rectangle = CaptureDialog.this.rectangle;
boolean interval = CaptureDialog.this.interval.getSelection();
int intervalms = CaptureDialog.this.intervalms.getSelection();
if (timer != null) {
// タイマーを停止させる
timer.cancel();
timer = null;
}
if (CaptureDialog.this.isAlive) {
CaptureDialog.this.capture.setText(getCaptureButtonText(false, interval));
LayoutLogic.enable(CaptureDialog.this.composite, true);
CaptureDialog.this.isAlive = false;
} else {
timer = new Timer(true);
if (interval) {
// 固定レートで周期キャプチャ
timer.scheduleAtFixedRate(new CaptureTask(rectangle), 0, intervalms);
CaptureDialog.this.isAlive = true;
} else {
// 一回だけキャプチャ
timer.schedule(new CaptureTask(rectangle), 0);
}
CaptureDialog.this.capture.setText(getCaptureButtonText(true, interval));
if (interval) {
LayoutLogic.enable(CaptureDialog.this.composite, false);
}
}
CaptureDialog.this.timer = timer;
}
}
/**
* 画面キャプチャスレッド
*
*/
public static final class CaptureTask extends TimerTask {
/** Jpeg品質 */
private static final float QUALITY = 0.9f;
/** 日付フォーマット(ファイル名) */
private SimpleDateFormat fileNameFormat;
/** キャプチャ範囲 */
private final Rectangle rectangle;
/** トリム範囲 */
private java.awt.Rectangle trimRect;
public CaptureTask(Rectangle rectangle) {
this.rectangle = rectangle;
try {
this.fileNameFormat = new SimpleDateFormat(AppConfig.get().getImageNameFormat());
} catch (IllegalArgumentException e) {
this.fileNameFormat = new SimpleDateFormat(AppConstants.DATE_LONG_FORMAT);
}
}
@Override
public void run() {
try {
// 時刻からファイル名を作成
Date now = Calendar.getInstance().getTime();
// 範囲をキャプチャする
BufferedImage image = AwtUtils.getCapture(this.rectangle);
String dir = AppConfig.get().getCapturePath();
String name = this.fileNameFormat.format(now) + "." + AppConfig.get().getImageFormat();
Path path = Paths.get(dir, name);
File file = path.toFile();
if (file.exists()) {
if (file.isDirectory()) {
throw new IOException("File '" + file + "' exists but is a directory");
}
if (!(file.canWrite()))
throw new IOException("File '" + file + "' cannot be written to");
} else {
File parent = file.getParentFile();
if ((parent != null) &&
(!(parent.mkdirs())) && (!(parent.isDirectory()))) {
throw new IOException("Directory '" + parent + "' could not be created");
}
}
if (image != null) {
try (ImageOutputStream ios = ImageIO.createImageOutputStream(file)) {
ImageWriter writer = ImageIO.getImageWritersByFormatName(AppConfig.get().getImageFormat())
.next();
try {
ImageWriteParam iwp = writer.getDefaultWriteParam();
if (iwp.canWriteCompressed()) {
iwp.setCompressionMode(ImageWriteParam.MODE_EXPLICIT);
iwp.setCompressionQuality(QUALITY);
}
writer.setOutput(ios);
if (this.trimRect == null) {
this.trimRect = AwtUtils.getTrimSize(image);
}
writer.write(null, new IIOImage(AwtUtils.trim(image, this.trimRect), null, null), iwp);
} finally {
writer.dispose();
}
}
}
} catch (Exception e) {
LoggerHolder.LOG.warn("キャプチャ中に例外が発生しました", e);
}
}
}
}
