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< > BotCompany Repo | #1034224 // JPopDownButton - generalized jPopDownButton

JavaX fragment (include) [tags: use-pretranspiled]

Libraryless. Click here for Pure Java version (10394L/59K).

sclass JPopDownButton > JButton {
  S menuPosition = "left"; // or "center" or "right"
  
  *() { this(""); }
  *(S text) {
    super(joinNemptiesWithSpace(text, unicode_downPointingTriangle()));
    main addActionListener(this, r openMenu);
  }
  
  *(IVF1<JPopupMenu> *fillMenu) { this(); }
  
  selfType content(O... items) {
    onFillingMenu(menu -> fillJPopupMenu(menu, items));
    this;
  }
  
  event fillingMenu(JPopupMenu menu);
  
  swappable void fillMenu(JPopupMenu menu) {
    fillingMenu(menu);
  }
  
  void openMenu {
    new JPopupMenu menu;
    int emptyCount = menu.getComponentCount();
    fillMenu(menu);
    if (menu.getComponentCount() == emptyCount) ret;
    
    int x = 0;
    if (eq(menuPosition, "center")) x = (getWidth()-getPreferredWidth(menu))/2;
    else if (eq(menuPosition, "right")) x = getWidth()-getPreferredWidth(menu);
    menu.show(this, x, getHeight());
  }
  
  visual this;
}

Author comment

Began life as a copy of #1020102

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Snippet ID: #1034224
Snippet name: JPopDownButton - generalized jPopDownButton
Eternal ID of this version: #1034224/8
Text MD5: 8c865c9c059b240681bf792ce6b76162
Transpilation MD5: d5975120704fc219aee17db24ddf11ed
Author: stefan
Category: javax / gui
Type: JavaX fragment (include)
Public (visible to everyone): Yes
Archived (hidden from active list): No
Created/modified: 2022-06-16 16:48:24
Source code size: 956 bytes / 36 lines
Pitched / IR pitched: No / No
Views / Downloads: 95 / 205
Version history: 7 change(s)
Referenced in: [show references]