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Bug 777075 - Add a getMutableMetrics helper. r=mbrubeck

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This commit is contained in:
Kartikaya Gupta 2012-08-01 10:38:30 -04:00
parent 7de6d09010
commit d21d9fe1d7
1 changed files with 10 additions and 6 deletions
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16
mobile/android/base/ui/PanZoomController.java
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@ -158,6 +158,10 @@ public class PanZoomController
return mTarget.getViewportMetrics();
}
private ViewportMetrics getMutableMetrics() {
return new ViewportMetrics(getMetrics());
}
// for debugging bug 713011; it can be taken out once that is resolved.
private void checkMainThread() {
if (mMainThread != Thread.currentThread()) {
@ -313,7 +317,7 @@ public class PanZoomController
if (mState == PanZoomState.NOTHING) {
synchronized (mTarget.getLock()) {
ViewportMetrics validated = getValidViewportMetrics();
if (! (new ViewportMetrics(getMetrics())).fuzzyEquals(validated)) {
if (! getMutableMetrics().fuzzyEquals(validated)) {
// page size changed such that we are now in overscroll. snap to the
// the nearest valid viewport
mTarget.setViewportMetrics(validated);
@ -538,7 +542,7 @@ public class PanZoomController
}
private void scrollBy(PointF point) {
ViewportMetrics viewportMetrics = new ViewportMetrics(getMetrics());
ViewportMetrics viewportMetrics = getMutableMetrics();
PointF origin = viewportMetrics.getOrigin();
origin.offset(point.x, point.y);
viewportMetrics.setOrigin(origin);
@ -563,7 +567,7 @@ public class PanZoomController
private void bounce(ViewportMetrics metrics) {
stopAnimationTimer();
ViewportMetrics bounceStartMetrics = new ViewportMetrics(getMetrics());
ViewportMetrics bounceStartMetrics = getMutableMetrics();
if (bounceStartMetrics.fuzzyEquals(metrics)) {
setState(PanZoomState.NOTHING);
return;
@ -788,7 +792,7 @@ public class PanZoomController
/* Returns the nearest viewport metrics with no overscroll visible. */
private ViewportMetrics getValidViewportMetrics() {
return getValidViewportMetrics(new ViewportMetrics(getMetrics()));
return getValidViewportMetrics(getMutableMetrics());
}
private ViewportMetrics getValidViewportMetrics(ViewportMetrics viewportMetrics) {
@ -978,7 +982,7 @@ public class PanZoomController
* scale operation. You must hold the monitor while calling this.
*/
private void scaleWithFocus(float zoomFactor, PointF focus) {
ViewportMetrics viewportMetrics = new ViewportMetrics(getMetrics());
ViewportMetrics viewportMetrics = getMutableMetrics();
viewportMetrics.scaleTo(zoomFactor, focus);
mTarget.setViewportMetrics(viewportMetrics);
mTarget.notifyLayerClientOfGeometryChange();
@ -1086,7 +1090,7 @@ public class PanZoomController
float finalZoom = viewport.width() / zoomToRect.width();
ViewportMetrics finalMetrics = new ViewportMetrics(getMetrics());
ViewportMetrics finalMetrics = getMutableMetrics();
finalMetrics.setOrigin(new PointF(zoomToRect.left * finalMetrics.getZoomFactor(),
zoomToRect.top * finalMetrics.getZoomFactor()));
finalMetrics.scaleTo(finalZoom, new PointF(0.0f, 0.0f));