{"id":10441,"date":"2022-03-19T12:52:53","date_gmt":"2022-03-19T03:52:53","guid":{"rendered":"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/?p=10441"},"modified":"2022-03-19T12:52:53","modified_gmt":"2022-03-19T03:52:53","slug":"javaswing-imgscroll","status":"publish","type":"post","link":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/2022\/03\/19\/javaswing-imgscroll\/","title":{"rendered":"Java\/Swing: JFrame\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u77e2\u5370\u30ad\u30fc\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u308b\u65b9\u6cd5"},"content":{"rendered":"<p>\u524d\u56de\u3001JFrame\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3057\u305f\u3002<\/p>\n<div class=\"linkcard\"><div class=\"lkc-external-wrap\"><a class=\"lkc-link no_icon\" href=\"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/2022\/03\/15\/javaswing-image\/\" data-lkc-id=\"280\" target=\"_blank\" rel=\"external noopener\"><div class=\"lkc-card\"><div class=\"lkc-info\"><div class=\"lkc-favicon\"><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/www.google.com\/s2\/favicons?domain=pineplanter.moo.jp\" alt=\"\" width=\"16\" height=\"16\" \/><\/div><div class=\"lkc-domain\">\u975eIT\u4f01\u696d\u306b\u52e4\u3081\u308b\u4e2d\u5e74\u30b5\u30e9\u30ea\u30fc\u30de\u30f3\u306eIT\u65e5\u8a18<\/div><\/div><div class=\"lkc-content\"><figure class=\"lkc-thumbnail\"><img decoding=\"async\" class=\"lkc-thumbnail-img\" src=\"http:\/\/s.wordpress.com\/mshots\/v1\/http%3A%2F%2Fpineplanter.moo.jp%2Fnon-it-salaryman%2F2022%2F03%2F15%2Fjavaswing-image%2F?w=100\" width=\"100px\" height=\"108px\" alt=\"\" \/><\/figure><div class=\"lkc-title\">Java\/Swing\uff1a\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u306b\u306f<\/div><div class=\"lkc-excerpt\">Java\/Swing\u306eJFrame\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u3067\u3059\u3002Swing\u3067\u306f\u753b\u50cf\u7528\u306e\u30a6\u30a3\u30b8\u30a7\u30c3\u30c8\u304c\u7528\u610f\u3055\u308c\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001JLabel\u4e0a\u306b\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5\u304c\u4e00\u822c\u7684\u3089\u3057\u3044\u3067\u3059\u306d\u3002\u5b8c\u6210\u5f62\u306f\u3053\u3093\u306a\u611f\u3058\u3067\u3059\u3002\u753b\u9762\u304b\u3089\u306f\u307f\u51fa\u305f\u90e8\u5206\u306f\u30b9\u30af\u30ed\u30fc\u30eb\u3067\u78ba\u8a8d\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u3066\u3044\u307e\u3059\u3002\u00a0\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3053\u3061\u3089\u3002import javax.swing.*;import java.awt.*;import java.awt.event.*;public class ImageShow extends JFrame {  private Container pane;  private JScrollPane spane;  private JLabel label;  public static void main(String args){    I...<\/div><\/div><div class=\"clear\"><\/div><\/div><\/a><\/div><\/div>\n<p>\u4eca\u56de\u306f\u3001\u8868\u793a\u3055\u305b\u305f\u753b\u50cf\u304c\u753b\u9762\u304b\u3089\u306f\u307f\u51fa\u305f\u5834\u5408\u306b\u3001\u77e2\u5370\u30ad\u30fc\u3067\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3059\u3002<\/p>\n<p>\u5b8c\u6210\u4f8b\u306f\u4e0b\u8a18\u306e\u901a\u308a\u3002\u30b9\u30e0\u30fc\u30ba\u306b\u52d5\u304b\u3059\u306e\u3067\u306f\u306a\u304f\u898b\u3048\u3066\u3044\u306a\u3044\u3068\u3053\u308d\u3092\u9806\u306b\u30b9\u30c6\u30c3\u30d7\u7684\u306b\u30b9\u30af\u30ed\u30fc\u30eb\u3055\u305b\u307e\u3057\u305f\u3002\u3086\u3063\u304f\u308a\u4e0b\u308d\u3057\u305f\u3044\u5834\u5408\u306f\u4eca\u56de\u306e\u4f8b\u3092\u5fdc\u7528\u3067\u304d\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n<div style=\"width: 580px;\" class=\"wp-video\"><video class=\"wp-video-shortcode\" id=\"video-10441-1\" width=\"580\" height=\"326\" preload=\"metadata\" controls=\"controls\"><source type=\"video\/mp4\" src=\"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-content\/uploads\/2022\/03\/javapic.mp4?_=1\" \/><a href=\"http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-content\/uploads\/2022\/03\/javapic.mp4\">http:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-content\/uploads\/2022\/03\/javapic.mp4<\/a><\/video><\/div>\n<p>&nbsp;<\/p>\n<p>\u30bd\u30fc\u30b9\u30b3\u30fc\u30c9\u306f\u3053\u3061\u3089\u3002\u4ee5\u4e0b\u3092\u30b3\u30d4\u30da\u3057\u3066\u30b3\u30f3\u30d1\u30a4\u30eb\u3059\u308c\u3070\u4e0a\u8a18\u306e\u3082\u306e\u304c\u5b9f\u884c\u3067\u304d\u307e\u3059\u3002\u89e3\u8aac\u306f\u30bd\u30fc\u30b9\u5185\u306e\u30b3\u30e1\u30f3\u30c8\u3092\u53c2\u7167\u304f\u3060\u3055\u3044\u3002<\/p>\n<pre class=\"brush: java; title: ; notranslate\" title=\"\">\r\nimport javax.swing.*;\r\nimport java.awt.*;\r\nimport java.awt.event.*;\r\n\r\npublic class ImageShow extends JFrame implements ComponentListener, KeyListener {\r\n  private Container pane;\r\n  private JScrollPane spane;\r\n  private JLabel label;\r\n  private ImageIcon icon;\r\n\r\n  public static void main(String&#x5B;] args){\r\n    ImageShow f = new ImageShow();\r\n    f.setLocationRelativeTo(null);\r\n    f.setVisible(true);\r\n  }\r\n\r\n  ImageShow(){\r\n    super(&quot;\u753b\u50cf\u8868\u793a\u30c6\u30b9\u30c8&quot;);\r\n    setSize(1000, 800);\r\n    addComponentListener(this);\r\n    addKeyListener(this);\r\n    pane = getContentPane();\r\n    \/\/\u753b\u50cf\u306e\u8aad\u307f\u8fbc\u307f\r\n    icon = new ImageIcon(&quot;img.png&quot;);\r\n    \/\/\u30e9\u30d9\u30eb\u306b\u753b\u50cf\u3092\u8868\u793a\r\n    label = new JLabel();\r\n    label.setIcon(icon);\r\n    \/\/JScrollPane\u306b\u30bb\u30c3\u30c8\u3002\u7e26\u6a2a\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u304c\u5e38\u306b\u8868\u793a\u3055\u308c\u308b\u3088\u3046\u306b\r\n    spane = new JScrollPane(label, JScrollPane.VERTICAL_SCROLLBAR_ALWAYS, JScrollPane.HORIZONTAL_SCROLLBAR_ALWAYS);\r\n    pane.add(spane);\r\n\r\n    \/\/\u7d42\u4e86\u51e6\u7406\r\n    setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);\r\n    addWindowListener(new WindowAdapter(){\r\n      public void windowClosing(WindowEvent e){\r\n        System.exit(0);\r\n      }\r\n    });\r\n\r\n    \/\/\u30eb\u30c3\u30af\u30a2\u30f3\u30c9\u30d5\u30a3\u30fc\u30eb\u3092GTK+\u98a8\u306b\r\n    try{\r\n      UIManager.setLookAndFeel(&quot;com.sun.java.swing.plaf.gtk.GTKLookAndFeel&quot;);\r\n    }catch(Exception e){}\r\n  }\r\n\r\n  public void keyPressed(KeyEvent e) {\r\n    \/\/\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u306e\u9577\u3055\u3092\u53d6\u5f97\uff08\u3053\u308c\u3092\u77e2\u5370\u30ad\u30fc\u62bc\u4e0b\u6642\u306e\u79fb\u52d5\u91cf\u3068\u3059\u308b\uff09\r\n    int sp_size = spane.getVerticalScrollBar().getVisibleAmount();\r\n    \/\/\u4e0b\u77e2\u5370\u30ad\u30fc\u62bc\u4e0b\u30a4\u30d9\u30f3\u30c8\r\n    if(e.getKeyCode()==KeyEvent.VK_DOWN){\r\n      \/\/\u73fe\u5728\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u304b\u3089\u30d0\u30fc\u9577\u3055\u5206\u3060\u3051\u4e0b\u306b\u4e0b\u3052\u308b\r\n      int step = spane.getVerticalScrollBar().getValue() + sp_size;\r\n      spane.getVerticalScrollBar().setValue(step);\r\n    }\r\n    \/\/\u4e0a\u77e2\u5370\u30ad\u30fc\u62bc\u4e0b\u30a4\u30d9\u30f3\u30c8\r\n    if(e.getKeyCode()==KeyEvent.VK_UP){\r\n      \/\/\u73fe\u5728\u306e\u30b9\u30af\u30ed\u30fc\u30eb\u4f4d\u7f6e\u304b\u3089\u30d0\u30fc\u9577\u3055\u5206\u3060\u3051\u4e0a\u306b\u4e0a\u3052\u308b\r\n      int step = spane.getVerticalScrollBar().getValue() - sp_size;\r\n      spane.getVerticalScrollBar().setValue(step);\r\n    }\r\n  }\r\n  public void keyReleased(KeyEvent e) {}\r\n  public void keyTyped(KeyEvent e) {}\r\n\r\n  public void componentHidden(ComponentEvent e) {}\r\n  public void componentMoved(ComponentEvent e) {}\r\n  \/\/\u30a6\u30a3\u30f3\u30c9\u30a6\u30ea\u30b5\u30a4\u30ba\u6642\u306e\u30a4\u30d9\u30f3\u30c8\r\n  public void componentResized(ComponentEvent e) {\r\n    \/\/\u7e26\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u306e\u6a2a\u5e45\u53d6\u5f97\r\n    int bar_width = spane.getVerticalScrollBar().getSize().width;\r\n    \/\/\u753b\u50cf\u306e\u6a2a\u5e45\u6c7a\u5b9a\uff08JFrame\u5e45\u2212\u7e26\u30b9\u30af\u30ed\u30fc\u30eb\u30d0\u30fc\u306e\u6a2a\u5e45, 3px\u3060\u3051\u7e2e\u3081\u308b\u3068\u4e01\u5ea6\u3088\u3044\uff09\r\n    int width = this.getSize().width - bar_width - 3;\r\n    \/\/\u753b\u50cf\u306e\u6a2a\u5e45\u3092\u30a6\u30a3\u30f3\u30c9\u30a6\u5e45\u306b\u5408\u308f\u305b\u308b\r\n    Image smallImg = icon.getImage().getScaledInstance(width, -1, Image.SCALE_SMOOTH);\r\n    ImageIcon img = new ImageIcon(smallImg);\r\n    label.setIcon(img);\r\n  }\r\n  public void componentShown(ComponentEvent e) {}\r\n}\r\n \r\n<\/pre>\n<p>&nbsp;<\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u524d\u56de\u3001JFrame\u4e0a\u306b\u753b\u50cf\u3092\u8868\u793a\u3055\u305b\u308b\u65b9\u6cd5\u306b\u3064\u3044\u3066\u66f8\u304d\u307e\u3057\u305f\u3002 \u4eca\u56de\u306f\u3001\u8868\u793a\u3055\u305b &#8230; <\/p>\n","protected":false},"author":1,"featured_media":10445,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[34],"tags":[],"class_list":["post-10441","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-java"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/10441","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/comments?post=10441"}],"version-history":[{"count":3,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/10441\/revisions"}],"predecessor-version":[{"id":10446,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/posts\/10441\/revisions\/10446"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media\/10445"}],"wp:attachment":[{"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/media?parent=10441"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/categories?post=10441"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pineplanter.moo.jp\/non-it-salaryman\/wp-json\/wp\/v2\/tags?post=10441"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}