terminal/src/interactivity
Carlos Zamora 0e672fac08
Move rect expansion to textbuffer; refactor selection code (#4560)
- When performing chunk selection, the expansion now occurs at the time
  of the selection, not the rendering of the selection
- `GetSelectionRects()` was moved to the `TextBuffer` and is now shared
  between ConHost and Windows Terminal
- Some of the selection variables were renamed for clarity
- Selection COORDs are now in the Text Buffer coordinate space
- Fixes an issue with Shift+Click after performing a Multi-Click
  Selection

## References
This also contributes to...
- #4509: UIA Box Selection
- #2447: UIA Signaling for Selection
- #1354: UIA support for Wide Glyphs

Now that the expansion occurs at before render-time, the selection
anchors are an accurate representation of what is selected. We just need
to move `GetText` to the `TextBuffer`. Then we can have those three
issues just rely on code from the text buffer. This also means ConHost
gets some of this stuff for free 😀

### TextBuffer
- `GetTextRects` is the abstracted form of `GetSelectionRects`
- `_ExpandTextRow` is still needed to handle wide glyphs properly

### Terminal
- Rename...
    - `_boxSelection` --> `_blockSelection` for consistency with ConHost
    - `_selectionAnchor` --> `_selectionStart` for consistency with UIA
    - `_endSelectionPosition` --> `_selectionEnd` for consistency with
      UIA
- Selection anchors are in Text Buffer coordinates now
- Really rely on `SetSelectionEnd` to accomplish appropriate chunk
  selection and shift+click actions

## Validation Steps Performed
- Shift+Click
- Multi-Click --> Shift+Click
- Chunk Selection at...
    - top of buffer
    - bottom of buffer
    - random region in scrollback

Closes #4465
Closes #4547
2020-02-27 16:42:26 -08:00
..
base Fix a bunch of spelling errors across the project (#4295) 2020-02-10 20:40:01 +00:00
inc Accessibility: Set-up UIA Tree (#1691) 2019-07-29 15:21:15 -07:00
onecore Make Conpty emit wrapped lines as actually wrapped lines (#4415) 2020-02-27 16:40:11 +00:00
win32 Move rect expansion to textbuffer; refactor selection code (#4560) 2020-02-27 16:42:26 -08:00
dirs Initial release of the Windows Terminal source code 2019-05-02 15:29:04 -07:00