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Update PolygonView.java #37

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Update PolygonView.java #37

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199cfd4
Update PolygonView.java
Apr 20, 2017
83087a7
Update PolygonView.java
Apr 20, 2017
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62 changes: 61 additions & 1 deletion ScanDemoExample/scanlibrary/src/main/java/com/scanlibrary/PolygonView.java
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Original file line number Diff line number Diff line change
Expand Up @@ -238,7 +238,11 @@ public boolean onTouch(View v, MotionEvent event) {
default:
break;
}
polygonView.invalidate();
if (eid == MotionEvent.ACTION_MOVE) {
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@jhansireddy jhansireddy Oct 16, 2020

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Thank you for the PR. Could you please help me understand the reason behind these changes.

polygonView.superInvalidate();
}else {
polygonView.invalidate();
}
return true;
}
}
Expand Down Expand Up @@ -292,5 +296,61 @@ public boolean onTouch(View v, MotionEvent event) {

}

public void invalidate() {

if (pointer1.getX() > pointer4.getX() && pointer1.getY() > pointer4.getY()) {
ImageView tempImageView = pointer4;
pointer4 = pointer1;
pointer1 = tempImageView;
}

if (pointer2.getY() > pointer3.getY() && pointer2.getX() < pointer3.getX()) {
ImageView tempImageView = pointer3;
pointer3 = pointer2;
pointer2 = tempImageView;
}

if (pointer1.getX() > pointer4.getX()) {
ImageView tempImageView = pointer4;
pointer4 = pointer3;
pointer3 = tempImageView;
}

if (pointer1.getY() > pointer3.getY()) {
ImageView tempImageView = pointer3;
pointer3 = pointer1;
pointer1 = tempImageView;
}

if (pointer2.getY() > pointer4.getY()) {
ImageView tempImageView = pointer4;
pointer4 = pointer2;
pointer2 = tempImageView;
}


if (pointer1.getX() > pointer2.getX()) {
ImageView tempImageView = pointer2;
pointer2 = pointer1;
pointer1 = tempImageView;
}

if (pointer3.getX() > pointer4.getX()) {
ImageView tempImageView = pointer4;
pointer4 = pointer3;
pointer3 = tempImageView;
}


midPointer13.setOnTouchListener(new MidPointTouchListenerImpl(pointer1, pointer3));
midPointer12.setOnTouchListener(new MidPointTouchListenerImpl(pointer1, pointer2));
midPointer34.setOnTouchListener(new MidPointTouchListenerImpl(pointer3, pointer4));
midPointer24.setOnTouchListener(new MidPointTouchListenerImpl(pointer2, pointer4));

super.invalidate();
}

public void superInvalidate() {
super.invalidate();
}
}