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/*
* 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);
}
}
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