50 lines
999 B
Bash
50 lines
999 B
Bash
|
#!/bin/bash
|
||
|
|
# zoom.sh - Capture cropped region of screen
|
||
|
|
# Usage: zoom.sh X1 Y1 X2 Y2
|
||
|
|
# Returns base64 of the cropped region
|
||
|
|
|
||
|
|
export DISPLAY=:99
|
||
|
|
OUTPUT_DIR="/tmp/computer-use"
|
||
|
|
mkdir -p "$OUTPUT_DIR"
|
||
|
|
|
||
|
|
X1=$1
|
||
|
|
Y1=$2
|
||
|
|
X2=$3
|
||
|
|
Y2=$4
|
||
|
|
|
||
|
|
if [ -z "$X1" ] || [ -z "$Y1" ] || [ -z "$X2" ] || [ -z "$Y2" ]; then
|
||
|
|
echo "ERROR: Usage: zoom.sh X1 Y1 X2 Y2" >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
TIMESTAMP=$(date +%s%N)
|
||
|
|
FULL_FILE="$OUTPUT_DIR/full_$TIMESTAMP.png"
|
||
|
|
CROP_FILE="$OUTPUT_DIR/crop_$TIMESTAMP.png"
|
||
|
|
|
||
|
|
# Take full screenshot
|
||
|
|
scrot -o "$FULL_FILE" 2>/dev/null
|
||
|
|
|
||
|
|
if [ ! -f "$FULL_FILE" ]; then
|
||
|
|
echo "ERROR: Failed to take screenshot" >&2
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Calculate crop dimensions
|
||
|
|
WIDTH=$((X2 - X1))
|
||
|
|
HEIGHT=$((Y2 - Y1))
|
||
|
|
|
||
|
|
# Crop using ImageMagick
|
||
|
|
convert "$FULL_FILE" -crop "${WIDTH}x${HEIGHT}+${X1}+${Y1}" +repage "$CROP_FILE"
|
||
|
|
|
||
|
|
if [ ! -f "$CROP_FILE" ]; then
|
||
|
|
echo "ERROR: Failed to crop screenshot" >&2
|
||
|
|
rm -f "$FULL_FILE"
|
||
|
|
exit 1
|
||
|
|
fi
|
||
|
|
|
||
|
|
# Output base64
|
||
|
|
base64 -w0 "$CROP_FILE"
|
||
|
|
|
||
|
|
# Cleanup
|
||
|
|
rm -f "$FULL_FILE" "$CROP_FILE"
|