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832d2beb2d
Retain the padded canonical pixel canvas separately from the image content. Scale only the populated portion of partial edge cells so an image keeps its exact raster size on the originating terminal while retaining its cell footprint.
71 lines
2.3 KiB
Bash
Executable File
71 lines
2.3 KiB
Bash
Executable File
#!/bin/sh
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# Grid-resident SIXEL image markers: history, copy, overwrite and fallback.
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PATH=/bin:/usr/bin
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TERM=screen
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[ -z "$TEST_TMUX" ] && TEST_TMUX=$(readlink -f ../tmux)
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TMUX="$TEST_TMUX -Limage$$ -f/dev/null"
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TMUX2="$TEST_TMUX -Limage-client$$ -f/dev/null"
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$TMUX kill-server 2>/dev/null
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$TMUX2 kill-server 2>/dev/null
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TMP=$(mktemp)
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trap "$TMUX kill-server 2>/dev/null; $TMUX2 kill-server 2>/dev/null; rm -f $TMP" 0 1 15
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$TMUX new-session -d -x 20 -y 8 "
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printf '\033Pq\"1;1;8;16#0;2;100;100;100#0~~~~~~~~\044-~~~~~~~~\033\\'
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i=0
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while [ \$i -lt 10 ]; do printf '\nline-%d' \$i; i=\$((i + 1)); done
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sleep 10"
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sleep 1
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[ "$($TMUX display-message -p '#{image_support}')" = 0 ] && exit 0
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# Images scroll as grid cells, while capture output contains ordinary spaces.
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[ "$($TMUX display-message -p '#{history_size}')" -gt 0 ] || exit 1
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$TMUX capture-pane -pS- >$TMP || exit 1
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grep 'Pq' $TMP >/dev/null && exit 1
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# Copy mode duplicates the backing grid, including image marker references.
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$TMUX copy-mode || exit 1
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$TMUX send-keys -X history-top || exit 1
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$TMUX capture-pane -p >$TMP || exit 1
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$TMUX send-keys -X cancel || exit 1
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# Ordinary text overwrites marker cells through the normal grid write path.
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$TMUX new-window -d "
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printf '\033Pq\"1;1;8;16#0;2;100;100;100#0~~~~~~~~\044-~~~~~~~~\033\\'
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printf '\033[HXY'
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sleep 10"
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sleep 1
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[ "$($TMUX capture-pane -pt:1 -S0 -E0)" = "XY" ] || exit 1
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# A 26-pixel raster occupies two default 16-pixel cells, but the final cell
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# remains only partially filled instead of stretching the raster to 32 pixels.
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# A client without an image feature exposes this in the sampled text backend.
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$TMUX kill-server 2>/dev/null
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$TMUX2 new-session -d -x 10 -y 4 "
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printf '\033Pq\"1;1;26;26#0;2;100;100;100#0!26~-!26~-!26~-!26~-!26B\033\\'
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sleep 10" || exit 1
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$TMUX2 set -g status off || exit 1
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$TMUX new-session -d -x 10 -y 4 || exit 1
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$TMUX set -g status off || exit 1
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$TMUX send-keys -l "$TMUX2 attach-session" || exit 1
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$TMUX send-keys Enter || exit 1
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sleep 1
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$TMUX capture-pane -pS0 -E0 >$TMP || exit 1
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grep -q '^#=' $TMP || exit 1
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# Selection redraws must leave text image cells visible.
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$TMUX2 copy-mode || exit 1
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$TMUX2 send-keys -X history-top || exit 1
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$TMUX2 send-keys -X start-of-line || exit 1
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$TMUX2 send-keys -X begin-selection || exit 1
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sleep 1
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$TMUX capture-pane -pS0 -E0 >$TMP || exit 1
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grep -q '^#=' $TMP || exit 1
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exit 0
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