/* * Geopaparazzi - Digital field mapping on Android based devices * Copyright (C) 2016 HydroloGIS (www.hydrologis.com) * * This program is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program. If not, see <http://www.gnu.org/licenses/>. */ package eu.geopaparazzi.library.features; import android.graphics.Canvas; import android.view.MotionEvent; /** * A tool that can draw. * * @author Andrea Antonello (www.hydrologis.com) */ public interface DrawingTool extends Tool { /** * Called when the tool should draw. * * @param canvas the {@link Canvas} to draw on. */ public void onToolDraw(Canvas canvas); /** * Called on a touch event. * * @param event the current triggered event. * @return <code>true</code> if the event has been handled. */ public boolean onToolTouchEvent(MotionEvent event); }