485942 - Canvas is repainted each time the cursor toggles

Status: RESOLVED WONTFIX

(Skywriter Graveyard :: General, defect)

Description

[Julian Viereck]

User-Agent:       Mozilla/5.0 (Macintosh; U; Intel Mac OS X 10_5_6; de-de) AppleWebKit/528.16 (KHTML, like Gecko) Version/4.0 Safari/528.16
Build Identifier: tip

Each time the cursor toggles the whole convas get repainted. To save up performance only the current affected / dirty rows + selected rows should be repainted in this case.

Reproducible: Always

Comment 1

[Julian Viereck]

Attachment: First trying to keep the canvas from repainting completly

This patch works well with insering code and moving the mouse aroung.

This patch *don't* work well, if the highlighting of the syntax changes on a line that is not marked as dirty by the editor's model, the cursor is on or selected by the user. Is there a way to get the lines the syntax highlighting has changed since the last pain?

Comment 2

[Gordon P. Hemsley [:GPHemsley]]

As I recall, you're right. So confirming this.

Comment 3

[Julian Viereck]

Attachment: Repaint the canvas if a setting has changed

Comment 4

[Gordon P. Hemsley [:GPHemsley]]

This is a mass migration from Mozilla Labs :: Bespin to Bespin :: General.

This bug likely still needs to be triaged and categorized.

Comment 5

[Ben Galbraith]

This describes internal behavior and doesn't reflect a "bug". If Bespin's painting performance is too slow, a bug should be filed describing those conditions.