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For later use in IFindFilter.

Don't highlight selection in headers, disable editing and make it a bit
bigger by default.

Now it's possible to choose between having completion popup manually,
when triggered or always.

the block might be invalid

Requested by con.

instead of extra selections. This requires a recent
version of Qt 4.7, the beta 2 will not do.

Done-with: Roberto Raggi

in VCSBaseEditor  and BaseTextEditor::createNew to the size
used for limiting file size.
Reviewed-by: Robert Loehning <robert.loehning@nokia.com>
Task-number: QTCREATORBUG-1847

The lexer needs its own lexerState, before it was using
the syntax highlighter user state. This breaks the brace
depth calculation of the highlighter.

Reviewed-by: Roberto Raggi

this function returns the bound region for the text in
lineStart to lineEnd

We use this to position the context pane

Now you can type characters like ., ( and : to complete the selected
item, depending on the type of the completion item.

Task-number: QTCREATORBUG-271
Reviewed-by: Roberto Raggi

We need our very own syntax highlighter in Qt Creator.

Adds a generic Outline pane to the sidebar. The CppEditor & QmlJSEditor
plugins will implement the IOutlineWidget/IOutlineWidgetFactory interface to
provide views specific to C++/Qml/JS documents.

Reviewed-by: con

Done-with: Thomas Hartmann

Previously it would always jump to the start of the document, since
that's where the newly created text cursor is at the beginEditBlock
call. Avoid this when saving the current editor by starting with the
cursor of the editor.

Reviewed-by: mae
Task-number: QTCREATORBUG-1807

confusion between columns and character positions

Updating the text cursors that the extra selections are based on can
get quite slow if there are changes in a lot of positions - like when
reindenting a file.

Dropping some text cursors can increase performance significantly in
these cases.

Done-with: mae

There are cases like when editing, or when jumping to a line, where we
shouldn't cut it though (so we don't).

Task-number: QTCREATORBUG-1535

we need a real icon in a larger size, this one will scale
poorly.

Done-with: Erik Verbruggen

This will be hooked up with the new indenter.
If you use tabs for spaces, and have tabSize==indentSize, we
will be able to preserve spaces for padding nonetheless.

See BaseTextEditor::setRefactorMarkers(...). The markers support
a clicked signal via BaseTextEditor and tooltips. They feature
a cursor, but are always positioned at the end of the line (not block!).

As special gimmick they do extend the document width when they
are positioned outside the document area.

Reviewed-by: Leandro Melo

A mostly mechanical change.

Reviewed-By: con

Task-number: QTCREATORBUG-1690

The semantic highlighting and all the extra selections create
many cursors, this does cost time in setText().
Solution: remove all extra selections on reload.

Reviewed-by: Oswald Buddenhagen
Task-number: QTCREATORBUG-1720

Especially for the file system filter, it's better not to block while
collecting all the file names by first iterating over the file system.
Now, the filters return an iterator, and the search thread takes a file
from it, searches it, and takes the next file.

This also unifies the file iterator for the custom locator filters and
the find in files on file system search filter.

Task-number: QTCREATORBUG-1690

The relevance member is already used by the CompletionCollector. Instead
I introduced the 'order' member to store a value used for the sorting
of completion items.

Reviewed-by: Erik Verbruggen