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Diffstat (limited to 'altosdroid/src/org/altusmetrum/AltosDroid/AltosMapView.java')
| -rw-r--r-- | altosdroid/src/org/altusmetrum/AltosDroid/AltosMapView.java | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/altosdroid/src/org/altusmetrum/AltosDroid/AltosMapView.java b/altosdroid/src/org/altusmetrum/AltosDroid/AltosMapView.java new file mode 100644 index 00000000..460a3a25 --- /dev/null +++ b/altosdroid/src/org/altusmetrum/AltosDroid/AltosMapView.java @@ -0,0 +1,163 @@ +/* + * Copyright © 2015 Keith Packard <keithp@keithp.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; version 2 of the License. + * + * 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, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +package org.altusmetrum.AltosDroid; + +import java.util.*; +import java.io.*; + +import org.altusmetrum.altoslib_7.*; + +import android.app.Activity; +import android.graphics.*; +import android.os.Bundle; +import android.support.v4.app.Fragment; +import android.support.v4.app.FragmentTransaction; +import android.view.*; +import android.widget.*; +import android.location.Location; +import android.content.*; +import android.util.*; + +public class AltosMapView extends View implements ScaleGestureDetector.OnScaleGestureListener { + ScaleGestureDetector scale_detector; + boolean scaling; + TabMapOffline tab; + + class Line { + AltosLatLon a, b; + + void paint() { + if (a != null && b != null) { + AltosPointDouble a_screen = tab.map.transform.screen(a); + AltosPointDouble b_screen = tab.map.transform.screen(b); + tab.paint.setColor(0xff8080ff); + tab.canvas.drawLine((float) a_screen.x, (float) a_screen.y, + (float) b_screen.x, (float) b_screen.y, + tab.paint); + } + } + + void set_a(AltosLatLon a) { + this.a = a; + } + + void set_b(AltosLatLon b) { + this.b = b; + } + + Line() { + } + } + + Line line = new Line(); + + private void draw_bitmap(AltosLatLon lat_lon, Bitmap bitmap, int off_x, int off_y) { + if (lat_lon != null && tab.map != null && tab.map.transform != null) { + AltosPointInt pt = new AltosPointInt(tab.map.transform.screen(lat_lon)); + + tab.canvas.drawBitmap(bitmap, pt.x - off_x, pt.y - off_y, tab.paint); + } + } + + private void draw_positions() { + line.set_a(tab.map.last_position); + line.set_b(tab.here); + line.paint(); + draw_bitmap(tab.pad, tab.pad_bitmap, tab.pad_off_x, tab.pad_off_y); + for (Rocket rocket : tab.rockets.values()) + rocket.paint(); + draw_bitmap(tab.here, tab.here_bitmap, tab.here_off_x, tab.here_off_y); + } + + @Override public void invalidate() { + Rect r = new Rect(); + getDrawingRect(r); + super.invalidate(); + } + + @Override public void invalidate(int l, int t, int r, int b) { + Rect rect = new Rect(); + getDrawingRect(rect); + super.invalidate(); + } + + @Override + protected void onDraw(Canvas view_canvas) { + tab.canvas = view_canvas; + tab.paint = new Paint(Paint.ANTI_ALIAS_FLAG); + tab.paint.setStrokeWidth(tab.stroke_width); + tab.paint.setStrokeCap(Paint.Cap.ROUND); + tab.paint.setStrokeJoin(Paint.Join.ROUND); + tab.paint.setTextSize(40); + tab.map.paint(); + draw_positions(); + tab.canvas = null; + } + + public boolean onScale(ScaleGestureDetector detector) { + float f = detector.getScaleFactor(); + if (f <= 0.8) { + tab.map.set_zoom(tab.map.get_zoom() - 1); + return true; + } + if (f >= 1.2) { + tab.map.set_zoom(tab.map.get_zoom() + 1); + return true; + } + return false; + } + + public boolean onScaleBegin(ScaleGestureDetector detector) { + return true; + } + + public void onScaleEnd(ScaleGestureDetector detector) { + } + + @Override + public boolean dispatchTouchEvent(MotionEvent event) { + scale_detector.onTouchEvent(event); + + if (scale_detector.isInProgress()) { + scaling = true; + } + + if (scaling) { + if (event.getAction() == MotionEvent.ACTION_UP) { + scaling = false; + } + return true; + } + + if (event.getAction() == MotionEvent.ACTION_DOWN) { + tab.map.touch_start((int) event.getX(), (int) event.getY(), true); + } else if (event.getAction() == MotionEvent.ACTION_MOVE) { + tab.map.touch_continue((int) event.getX(), (int) event.getY(), true); + } + return true; + } + + public void set_tab(TabMapOffline tab) { + this.tab = tab; + } + + public AltosMapView(Context context, AttributeSet attrs) { + super(context, attrs); + scale_detector = new ScaleGestureDetector(context, this); + } +} |