[birt-dev] Checkin: Bugzilla#190939 - Bubble is clipped in chart builder

["Yulin Wang" <yulin.wang@xxxxxxxxxxx>]

- Summary:
Bubble is clipped in chart builder [0001]

- Bugzilla Bug (s) Resolved: 190939

- Description:
Clipped Bubble occurs when X axis is category style, Bubble with null category value was skipped when computing fit size. Hence, this Bubble may be too big and clipped.
Now revised the logic for null category value. If X axis is category style, null will be included in computation; if non-category, null value will be skipped.
Additionally, refactored AutoScale code.

- Tests Description: Manual Test

- Notes to Build Team: N/A

- Notes to Developers: N/A

- Notes to QA: N/A

- Notes to Documentation: N/A

- Files Edited:

/org.eclipse.birt.chart.engine.extension/src/org/eclipse/birt/chart/render/Bubble.java
/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/computation/withaxes/AutoScale.java
/org.eclipse.birt.chart.engine/src/org/eclipse/birt/chart/render/AxesRenderer.java

- Files Added:

- Files Deleted