src/com/googlecode/lanterna/gui2/AbsoluteLayout.java

   1 /*
   2  * This file is part of lanterna (http://code.google.com/p/lanterna/).
   3  *
   4  * lanterna is free software: you can redistribute it and/or modify
   5  * it under the terms of the GNU Lesser General Public License as published by
   6  * the Free Software Foundation, either version 3 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU Lesser General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU Lesser General Public License
  15  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  16  *
  17  * Copyright (C) 2010-2015 Martin
  18  */
  19 package com.googlecode.lanterna.gui2;
  20
  21 import com.googlecode.lanterna.TerminalSize;
  22 import java.util.List;
  23
  24 /**
  25  * Layout manager that places components where they are manually specified to be and sizes them to the size they are
  26  * manually assigned to. When using the AbsoluteLayout, please use setPosition(..) and setSize(..) manually on each
  27  * component to choose where to place them. Components that have not had their position and size explicitly set will
  28  * not be visible.
  29  *
  30  * @author martin
  31  */
  32 public class AbsoluteLayout implements LayoutManager {
  33     @Override
  34     public TerminalSize getPreferredSize(List<Component> components) {
  35         TerminalSize size = TerminalSize.ZERO;
  36         for(Component component: components) {
  37             size = size.max(
  38                     new TerminalSize(
  39                             component.getPosition().getColumn() + component.getSize().getColumns(),
  40                             component.getPosition().getRow() + component.getSize().getRows()));
  41
  42         }
  43         return size;
  44     }
  45
  46     @Override
  47     public void doLayout(TerminalSize area, List<Component> components) {
  48         //Do nothing
  49     }
  50
  51     @Override
  52     public boolean hasChanged() {
  53         return false;
  54     }
  55 }