From 22179cab480efa593dc9b7d83352442f40da2da0 Mon Sep 17 00:00:00 2001
From: jventribout <jventrib@gmail.com>
Date: Mon, 24 Dec 2012 11:56:45 +0100
Subject: [PATCH] Animated zoom reset

---
 src/com/hexagon/map/MapActivity.java | 23 +++++++++++++++--------
 src/com/hexagon/map/Tile.java        |  2 +-
 src/com/hexagon/map/Viewport.java    | 14 ++++++++++++++
 3 files changed, 30 insertions(+), 9 deletions(-)

diff --git a/src/com/hexagon/map/MapActivity.java b/src/com/hexagon/map/MapActivity.java
index 8b6d1ec..b2e5f7d 100755
--- a/src/com/hexagon/map/MapActivity.java
+++ b/src/com/hexagon/map/MapActivity.java
@@ -540,14 +540,7 @@ protected void onSaveInstanceState(Bundle outState) {
 	@Override
 	public boolean onTouchEvent(MotionEvent me) {
 
-		if (me.getAction() == MotionEvent.ACTION_POINTER_UP
-				|| me.getAction() == MotionEvent.ACTION_UP) {
-			pinchDone = false;
-		}
 		mScaleDetector.onTouchEvent(me);
-		if (pinchDone) {
-			return true;
-		}
 		viewport.resetInertiaScroll();
 		// zoom control are reset to visible at each touch on the screen
 		controller.setVisible(true);
@@ -769,8 +762,23 @@ public class TouchUpReScaleGestureListener implements
 		public void onScaleEnd(ScaleGestureDetector detector) {
 			int zoomOffset = Math.round(viewport.zoomScale) - 1;
 			zoom(zoomOffset);
+			if (zoomOffset == 0) {
+				viewport.zoomReset(null);
+			}
+			float oldScale = viewport.zoomScale;
+			if (viewport.zoomScale < 0.5f) {
+				oldScale = viewport.zoomScale * 2;
+				
+			} else if (viewport.zoomScale < 2.0f) {
+				oldScale = viewport.zoomScale / 2;
+			}
 			viewport.zoomScale = 1.0f;
 			viewport.refresh();
+			if (zoomOffset != 0) {
+				viewport.zoomReset(oldScale);
+			}
+
+			pinchDone = true;
 		}
 
 		@Override
@@ -783,7 +791,6 @@ public boolean onScale(ScaleGestureDetector detector) {
 			Log.d(TAG, "zoom ongoing, scale: " + detector.getScaleFactor());
 			viewport.zoomScale = detector.getScaleFactor();
 			pinchDone = true;
-
 			return false;
 		}
 
diff --git a/src/com/hexagon/map/Tile.java b/src/com/hexagon/map/Tile.java
index 5137b0a..5cbddff 100755
--- a/src/com/hexagon/map/Tile.java
+++ b/src/com/hexagon/map/Tile.java
@@ -69,7 +69,7 @@ public void draw(Canvas canvas, Matrix scaleM, Paint paint) {
 		if (visible && Preferences.drawMap) {
 			m  =  new Matrix(scaleM);
 			m.preTranslate(posx, posy);
-			if (image != null && image.bmp != null) {
+			if (image != null && image.bmp != null && m != null) {
 				if (image.alpha < 255) {
 					Paint paintAlpha = new Paint(paint);
 					canvas.drawBitmap(layer.noSrcBmp, m, paint);
diff --git a/src/com/hexagon/map/Viewport.java b/src/com/hexagon/map/Viewport.java
index 412d2fe..8df2a6e 100755
--- a/src/com/hexagon/map/Viewport.java
+++ b/src/com/hexagon/map/Viewport.java
@@ -554,6 +554,20 @@ public void zoomOutAnimated() {
 		screenZoomAnimation.start();
 	}
 
+	public void zoomReset(Float oldScale) {
+		if (oldScale != null) {
+			screenZoomAnimation.initialZoom = oldScale;
+		} else {
+			screenZoomAnimation.initialZoom = zoomScale;
+		}
+		screenZoomAnimation.finalZoom = Math.round(zoomScale);
+		if (screenZoomAnimation.finalZoom < 0.5f) screenZoomAnimation.finalZoom = 0.5f;
+		if (screenZoomAnimation.finalZoom > 2.0f) screenZoomAnimation.finalZoom = 2.0f;
+		screenZoomAnimation.initialize(0, 0, 0, 0);
+		screenZoomAnimation.start();
+	}
+
+	
 	public void moveToLastLocation() {
 		moveToLocation(getCurrentBestLocation());
 	}