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78 lines
2.6 KiB
Bash
78 lines
2.6 KiB
Bash
# tui/layout.sh
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# Terminal UI layout helpers
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# Provides menu/table formatting utilities
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# set the total width of the menu
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# (adjusting this number will automatically change the entire menu, including the separator lines)
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# note: The number represents the number of columns that appear when the "||" appears on the right
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TABLE_WIDTH=60
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# define two extra-long template strings in advance
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# (the length should be greater than the expected TABLE_WIDTH)
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FULL_EQ="===================================================================================================="
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FULL_DASH="- - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - - "
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# function to print content lines
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# (using cursor jump with auto-wrapping and color handling)
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content_line() {
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local param="${1:-}"
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# Calculate Available Text Width
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local text_width=$((TABLE_WIDTH - 3))
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# 1. Extract color codes (if present)
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# Use sed to capture the leading ANSI Escape Code (\x1b is the hexadecimal representation of ESC)
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# This line extracts \033[33m... from \033[33m and stores it in color_code
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local color_code
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color_code=$(echo -e "$param" | sed -n 's/^\(\x1b\[[0-9;]*m\).*/\1/p')
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# 2. Generate Clean Text
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# Use sed to remove all ANSI color codes, retaining only plain text content
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# This allows fold to accurately count characters without premature line breaks
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local clean_text
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clean_text=$(echo -e "$param" | sed 's/\x1b\[[0-9;]*m//g')
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if [ -z "$clean_text" ]; then
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echo -e " \033[${TABLE_WIDTH}G||"
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else
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# 3. Insert line breaks in plain text
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echo "$clean_text" | fold -s -w "$text_width" | while IFS= read -r line; do
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# 4. Output Restructuring
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# Force the addition of color_code to each line and append \033[0m to reset at the end
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echo -e " ${color_code}${line}\033[0m\033[${TABLE_WIDTH}G||"
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done
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fi
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}
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# function to print sub content lines
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# for printing accompanying instructions
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sub_content_line() {
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local param="${1:-}"
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echo -e " ${param}\033[${TABLE_WIDTH}G||"
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content_line
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}
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# increase the spacing between the front
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# and back forms to improve readability
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double_line_break() {
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printf "\n\n"
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}
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# function to print separators
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# (using string slicing)
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# parameter $1: pass in "=" or "-"
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separator_line() {
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local separator_type="$1"
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local output_line=""
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local len=$((TABLE_WIDTH - 1))
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if [ "$separator_type" == "=" ]; then
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output_line="${FULL_EQ:0:$len}"
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else
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output_line="${FULL_DASH:0:$len}"
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fi
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echo "${output_line}||"
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}
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