"Insert RTF.." is very slow and throws an exception.

[kyli]

1. Try to insert a RTF frame with a large resource (for example, the attached file).
2. Notice that the importing is very slow.
3. After some time, an exception is thrown.

[kyli]

Design

• The slow part is because the text is parsed into lots of elements, each of them forms a HotText, then the texts are merged. Appending a hot text to another one is a relatively slow operation, so for big texts it becomes an issue. What we can make here is to accumulate the texts in a StringBuilder and then make the text at once. Unfortunately, applying a style is also slow, but applying one by one cannot be avoided. However, this operation will become visibly faster.
• The exception occurs because the TextAlign is not hashable. It is generally not a problem, but trying ti hash a text with this attribute will fail. So, for this concrete file, the exception is normal. It is enough to implement Hashable and override the only one method there - the hash of the align can be constructed by its name and its class.
• In order to test the rtf insert, I found out that with moving the rtf functionality, some extensions are lost - the rtf menu item and the import manager. They will be registered again in the text module.

Implementation

The code is committed in branches/private/kyli/2156/.

[meddle]

Merged with the trunk at [8071]... Copy paste of RTF does not keep the styles, but it is not from your code...

And write your name in the fields

4p

[deyan]

Batch update from file query-10.csv