android/source/src/java/org/libreoffice/canvas/CanvasElement.java

   1 /* -*- Mode: Java; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  */
   9
  10 package org.libreoffice.canvas;
  11
  12 import android.graphics.Canvas;
  13
  14 /**
  15  * Canvas element is an element (or part) that is drawn canvas and can
  16  * potentially be interacted with.
  17  */
  18 public interface CanvasElement {
  19     /**
  20      * Called when the element needs to be draw no the canvas. This method
  21      * should call onDraw when conditions to draw are satisfied.
  22      *
  23      * @param canvas - the canvas
  24      */
  25     void draw(Canvas canvas);
  26
  27     /**
  28      * Hit test - returns true if the object has been hit
  29      * @param x - x coordinate of the
  30      * @param y - y coordinate of the
  31      */
  32     boolean contains(float x, float y);
  33
  34     /**
  35      * Return if element is visible.
  36      */
  37     boolean isVisible();
  38
  39     /**
  40      * Set element visibility.
  41      * @param visible - is element visible
  42      */
  43     void setVisible(boolean visible);
  44 }
  45 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */