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Luis Javier Merino authored May 01, 2021 and Kurt Hindenburg committed May 05, 2021

Commits 9ffe33a2 and
4352df00 introduce and use a
getScreenLineColumns(line) method to provide support for DECDWL
(Double-Width) lines.

It turns out that under some conditions on resize Screen::_cuY (the
current cursor Y position) and ScreenWindow::endWindowLine() can have
different ideas of how many lines the terminal has.

A test that asserts:

 - while [ true ]; do echo -e "\e[?1047h";  done
 - Resize the window, making it smaller

BUG: 436327

Luis Javier Merino authored May 02, 2021 and Kurt Hindenburg committed May 05, 2021

Restore Y coordinate before X coordinate, so we make sure Y is in bounds
before trying to access _lineProperties depending on Y.

To test:

 - Go to the last line
 - tput sc
 - Shrink the terminal
 - tput rc

Carlos Alves authored May 01, 2021 and Kurt Hindenburg committed May 03, 2021

* Using internal erase function instead of While loop.
* Just clear if there is only one line.

Carlos Alves authored May 01, 2021 and Kurt Hindenburg committed May 03, 2021

Declaring it where there is no change in content and enable compiler to
perform better optimizations.

Carlos Alves authored Apr 29, 2021 and Kurt Hindenburg committed May 03, 2021

It is removing the vector of lines storage. Now it is using a similar
idea used in history file.

All chars are stored in a linear way, only the line indexes are
changed when reflowing.

No speed problem found when removing lines.

GIT_SILENT

When you open settings and close it, than open a new window, than
close the old window, the MainWindow with the settings will
delete the configDialog. If you try to open settings againg it crashes.

Fix is each MainWindow now has its own configDialog.

BUG: 436366

When needed CompactHistoryBlock can now increase from 256kb to a bigger
size.

BUG: 436031

This fixes the rendering on highdpi screens

Janet Blackquill authored Apr 23, 2021 and Kurt Hindenburg committed Apr 26, 2021

BUG: 435309

Lucas Biaggi authored Apr 24, 2021 and Kurt Hindenburg committed Apr 24, 2021

Add three layouts to the toolbar; add --layout <file> to the command line.
The 3 defaults layouts are 2x2, 2x1, 1x2

GUI:

In case of conflict in i18n, keep the version of the branch "ours"
To resolve a particular conflict, "git checkout --ours path/to/file.desktop"

Luis Javier Merino authored Mar 09, 2021 and Kurt Hindenburg committed Apr 17, 2021

Konsole wasn't really keeping track of changes to line rendition
attributes, and was just always marking for update the top line of
double-height lines. This didn't account for double-width lines, changes
back to single-width single-height, and did not provide proper support for
separate rendering of the bottom of double-height lines.

The effect can be seen on vttest "Test of known bugs" (9) -> "Erase
right half of double-width lines" (8), where a line is changed from
single-width to double-width and back. The line wasn't re-rendered on
each change, as it should.

Can also be tested with:

echo -e "\e[2J\e[1;1HTEST\n"; sleep 1; echo -e "\e[1;1H\e#6\e[2;1H"

Luis Javier Merino authored Mar 08, 2021 and Kurt Hindenburg committed Apr 17, 2021

Double height lines are actually two lines, the first with the top part
of the characters, the second with the bottom part. Reflowing could lead
to situations where we render a top part, a double height line with its
top and bottom parts, and a bottom part, which looks weird.

Luis Javier Merino authored Mar 08, 2021 and Kurt Hindenburg committed Apr 17, 2021

There is a difference with xterm behavior: when the screen width is an
odd number of columns, xterm allows selecting up to columns/2+1, we just
allow selecting up to columns/2.

Luis Javier Merino authored Mar 06, 2021 and Kurt Hindenburg committed Apr 17, 2021

While DECDHL/DECDWL lines are not wrapped at the correct column, now at
least reflowing doesn't clear line rendition attributes, so resizing
Konsole and going back to the original size always recovers the original
content, including double-height/double-width status of each line.

Reflowing double-height lines doesn't make much sense, since a
double-height line actually consists of a top (T) and a bottom (B)
line. Shrinking them could lead to TTBB lines, which look weird. At
least now going back to the original size brings back the original
content in all its glory.

Luis Javier Merino authored Mar 05, 2021 and Kurt Hindenburg committed Apr 17, 2021

The scrollback buffer has support for a wrapped property for every line.
Extend it to support the line rendition attributes.

Luis Javier Merino authored Mar 03, 2021 and Kurt Hindenburg committed Apr 17, 2021

While DECHDL sequences should be used in pairs on adjacent lines, the
first line drawing the top half, and the second line drawing the bottom
half, apparently real VTxxx (or at least the VT220) terminals did draw
only the top or bottom of characters when confronted with an isolated
DECDHL line (https://retrocomputing.stackexchange.com/questions/18023/).
xterm has that same behavior. So behave likewise.

Luis Javier Merino authored Mar 03, 2021 and Kurt Hindenburg committed Apr 17, 2021

TerminalDisplay::getCharacterPosition() should take double-width lines
into account to return the right column.

Luis Javier Merino authored Feb 28, 2021 and Kurt Hindenburg committed Apr 17, 2021

EL (Erase Line) should not reset the line rendition attribute to
single-width. ED (Erase Display) should only reset it for completely
cleared lines. ECH (Erase CHaracters) should obviously not reset it.
DECSED and DECSEL (Selective Erase, not supported by Konsole) should not
reset it.

This fixes a vttest test where a line is set to double-height-top and
then EL before writing its text and the double-height-bottom line below.

Can also be tested with:

echo -e "\e[2J\e[4;1HNormal\n\e#6DOUBLE\n\e#6DOUBLE\nNormal" &&
sleep 2; echo -e "\e[5;3H\e[1J\e[8;1H"

Luis Javier Merino authored Feb 26, 2021 and Kurt Hindenburg committed Apr 17, 2021

Some control functions special case the last column. When a line has
been set to double-width via DECDWL or DECDHL (double-height and
double-width), the correcr last column for that line should be used.
Control functions which special case the last column include TAB, CUF,
ICH and DECRC.

Can be tested with:

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7l$r";
         $s="L"."\tx"x4 ."\t\tR"; say "\e#3$s\n\e#4$s"'

The above tests that tabs don't travel beyond the last column in
double-width lines.  The last column (below columns 79 and 80 of
the previous line) should have an "R".

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7h$r";
         $s="L"."X"x36 ."\e[6C"."R"; say "\e#3$s\n\e#4$s"'

The above tests that CUF (Cursor Forward) doesn't travel beyond the last
column in double-width lines.  The last column (below columns 79 and 80
of the previous line) should have an "R".

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7h$r";
         $s="L"."X"x22 ."R"."x"x8 ."r"."\e[17D\e[16@";
         say "\e#3$s\n\e#4$s"'

The above tests that ICH (Insert CHaracters; VT200+) doesn't write past
the last column, visible on repaints (switch to another window and
back).

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7h$r";
         $s="L"."X"x38 ."r\e7\e[H\e8R"; say "\e#3$s\n\e#4$s"'

The above tests that DECRC (Restore Cursor) doesn't restore the cursor
to a position beyond the last column on double-width lines.  The last
column should have an "R", "r" should not be visible.

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7l$r";
         $s="L"."X"x38 ."R"; print "\e#6$s"'; sleep 5; echo

The above tests that the cursor stays at the rightmost column. The
cursor should stay over the "R" for 5 seconds.

Luis Javier Merino authored Feb 25, 2021 and Kurt Hindenburg committed Apr 17, 2021

Since double-width/double-height lines have room for just half the
characters, take that into account.

Can be tested with:

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7h$r";
         $s="L"."X"x38 ."RL"; say "\e#6$s"'

The above tests that appending characters to double-width lines in
DECAWM (Auto Wrap Mode) wraps at the correct last column. There should
appear a second line (single-width) with a single "L".

perl -E '$r=join "", map{$_%10}1..80; say "\e<\e[?40h\e[?3l\e[?7l$r";
         $s="L"."X"x42 ." TEST FAILED OUTOFBOUNDS R"; say "\e#6$s"'

The above tests that appending characters to double-width lines in
non-DECAWM (Auto Wrap Mode) doesn't write past the last column (visible
on repaints - switch to another window and back). The last column (below
columns 79 and 80 of prev line) should have an "R".

Luis Javier Merino authored Feb 24, 2021 and Kurt Hindenburg committed Apr 17, 2021

When there were several runs of double width/double height runs with
differing color/rendition/line draw/..., the second and subsequent runs
were positioned wrong. Fix the calculation of the starting x position to
account for double width, and fix a bug were the y position was
incremented for every run instead of for every line.

Can be tested with:
perl -E '$s="\e[0mTEST\e[32mTEST\e[0m"; say "\e#3$s\n\e#4$s"'

(cherry picked from commit f4fad3bb)

KPageDialog already creates the accepted()/rejected() connections, since
the code here created another connection, the accept() slot was being
called twice for each OK button click, with e.g. the profile name empty,
clicking Ok:
- the first time isProfileNameValid() would return false, and the saving
  would abort, as it should
- the second time around, isProfileNameValid() would return true since
  the name has been reverted to the original value in the Name line edit

The same goes for the reject() slot.

Also use a lambda instead of apply(), it's a very small method and this
was the code is more readable, since we don't need to jump back and forth.

It needed a few more tweaks to be fully consistent and gramatically
correct in English.

Ahmad Samir authored Apr 04, 2021 and Kurt Hindenburg committed Apr 04, 2021

- If the QObject has a parent, the parent will take care of deleting it
- Use std::unique_ptr to manage pointer member variable
- Use '= default' with empty destructors
- Fix initialization of QTimer in constructor initialization list