* do not use timer for selection, due to issue with Engine.time_scale == 0
* deciding on redraw based on target cell change
* deciding on send to system based on mouse button up event
* remove _on_selection_held() timer callback function and SelectionMode enum
* on non-Linux system use clipbord when copy_on_selection is active
Adds support for 'normal' and 'focus' Style Boxes to Terminal node.
Changes default background color to transparent, with background to be
set by StyleBox.
If background color is not transparent, will draw a background color
rect to cover the entire control over the top of any stylebox. This is
consistent with the behavior of the TextEdit node with regards to theme
colors and styleboxes.
Implements the copy_all() method which copies all text in the screen
including text in the scrollback buffer.
Includes a fix to an upstream bug in libtsm that resulted in double the
number of '\n' characters being copied for each row.
Implements the copy_selection() method, which returns the selected text.
Adds a copy_on_selection property. When this property is enabled, the
selected text will automatically be copied to the primary clipboard
(Linux X11/Wayland only).
Changes blink_on_time and blink_off_time to use double rather than
float. When float was used, the default blink_off_time of 0.3 was being
converted to 0.30000001192093 in GDScript.
Updates the `write()` method to return a String containing any responses
from the terminal. For example, these could be responses to a cursor
position request such as "\u001b[6n".
- Inverse mode invert (default) will invert the color in shader.
- Inverse mode swap will simply swap the foreground and background
colors. This is the default behavior of libtsm and GodotXterm v3.
The two shaders use a lot of common logic for co-ordinate and attribute
look up, so it makes sense to use a common include shader for both.
Adds support for the inverse and blink attributes to the foreground shader.
Rewrites the Terminal class as a GDExtension to be used directly in
Godot without a terminal.gd proxy.
Breaks a lot of things in its current state (e.g. signals and other
functions have not be implemented yet), but does add support for
transparent colors and true color inversion. It also seems to
be about 4x faster (FPS-wise) than the old version with some basic
stress testing.
Old source code has been moved to a different directory to be copied
over and/or rewritten piece by piece.
- Primary example scenes (menu, terminal, and asciicast) working but
still a lot of warning/error messages and some regressions.
- Editor integrated terminal works, but still a lot of warning/error
messages and some regressions.
- Added support for "blink" display attribute.
- Removed GDScript terminal code. Terminal node is now purely a
GDExtension. So is LibuvUtils.
- GUT tests not working yet.
- Still a lot of things to fix.
- So far, only built for and manually tested on Linux x86_64.
Changes `write()` method of native pipe and terminal to accept a
PoolByteArray rather than String. This means that `get_string_from_utf8()`
is no longer called on data coming from PTY and being sent to Terminal.
The terminal state machine already has a UTF8 parser which maintains
its state across calls to `write()`. This means that we can write half
the bytes of a single unicode character in one call and the remaining half
in the next call and the state machine will parse it correctly.
On the other hand, the `get_string_from_utf8()` method of Godot's
PoolByteArray requires that the array contains completely valid UTF8,
otherwise we get errors such as "Unicode error: invalid skip".
The data coming from PTY can be arbitrarily split in the middle of a
unicode character meaning that we will sometimes get errors when calling
`get_string_from_utf8()` on it. This is more likely to occur when there
is a large amount of output (i.e. it's more likely to be split). In other
cases, the data might intentionally contain invalid unicode such as when
printing binary files or random data (e.g. `cat /bin/sh`, `cat /dev/random`).
We avoid these errors by passing the PoolByteArray data directly to the terminal
state machine.
In addition to fixing unicode errors, this commit:
- Prevents repeated calls to pipes `_read_cb()` method that would block Godot
and result in a crash with the message "ERROR: All memory pool allocations
are in use" that resulted from writing data to an ever-increasing number of
PoolByteArrays before any of them could be freed. This could be triggered by
running the `cat /dev/urandom` command after making the change to `write()`
mentioned above.
- Prevents memory leaks by freeing libuv buffers after they have been copied
to PoolByteArrays.
Fixes#55.
Clearing the terminal removes all lines in the scrollback buffer except
for the most recent.
With sb_reset, the terminal will return the scrollback buffer to the
bottom when the user starts typing if they have previously scrolled up.
Draw the full background for wide characters as soon as they are
encountered. Don't draw any foreground or background if width is zero as
this means the previous character was wide.
Fixes#17
Fixes#41. But creates another issue where sometimes the yield will
resume after the terminal node has already been freed logging an error
to the console.
Also a few changes to where update is called it the gdnative terminal
code.
Also changed gdnative terminal to only accept strings.
- Use viewport as render target for terminal:
Terminal now only draws cells which changed since the last _draw() call.
A viewport is used with clear mode set to NEVER to cache previous draw
calls. The terminal node and viewport are wrapped by a GDScript Terminal
node which takes care of resizing the viewport scene, and forcing the
terminal to redraw all cells when necessary (i.e. on resize or theme
change).
Adds update_mode to terminal interface which can be set to one of:
- DISABLED: terminal will never be drawn
- AUTO: terminal will only draw the cells that changed, but
automatically redraw the full screen when necessary (for example,
when the size or theme changed).
- ALL: terminal will always draw every cell on every update. This is
the most reliable but least performant option.
- ALL_NEXT_FRAME: Will use update_mode ALL for the next _draw() call,
then change update_mode back to AUTO.
- Upgraded libtsm:
Includes changes from Fredrik Wikstrom (salass00)'s fork of libtsm.
- Don't require theme to be set.
Terminal will use default fonts/colors if no theme is set.
Previously KeyList constants came from the GlobalConstants.hpp header,
but this did not work when compiling for HTML5. Therefore, we now get
the globals constants from the GDNative API.
Throws the error:
`LNK2019: unresolved external symbol godot_get_global_constants referenced in function "private: static void __cdecl godot::Terminal::_populate_key_list(void)" (?_populate_key_list@Terminal@godot@@CAXXZ)`
in GitHub Windows action. So use the old technique on Windows for now.
This is a prerequisite for HTML5 support.
