improve display message for dependency tree

Author: excalibur1234

pacui

@@ -826,7 +826,7 @@ function func_t
                 pactree -c "$pkg" | fzf -i --multi --exact --no-sort --ansi --reverse --bind=right:half-page-down,left:half-page-up --margin=4%,1%,1%,1% --inline-info --preview '
                     echo -e "\e[1mInstalled package info: \e[0m"
                     pacman -Qi "$( echo {} | sed "s/^[│├└─ ]*//g" | cut -d " " -f 1 )" --color always
-                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Dependency Tree of \"$pkg\" (installed). ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-t
+                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Local Dependency Tree of \"$pkg\". ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-t
 
             else
 
@@ -841,7 +841,7 @@ function func_t
                         pacman -Si "$( echo {} | sed "s/^[│├└─ ]*//g" | cut -d " " -f 1 )" --color always                                                 # display package info from repository, if package is not locally installed
 
                     fi
-                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Dependency Tree of \"$pkg\" (not installed). ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-t
+                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Repository Dependency Tree of \"$pkg\". ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-t
 
             fi
 
@@ -891,10 +891,11 @@ function func_rt
                 pactree -c -r "$pkg" | fzf -i --multi --exact --no-sort --ansi --reverse --bind=right:half-page-down,left:half-page-up --margin=4%,1%,1%,1% --inline-info --preview '
                     echo -e "\e[1mInstalled package info: \e[0m"
                     pacman -Qi "$( echo {} | sed "s/^[│├└─ ]*//g" | cut -d " " -f 1 )" --color always
-                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Reverse Dependency Tree of \"$pkg\" (installed). ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-rt
+                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Local Reverse Dependency Tree of \"$pkg\". ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-rt
 
             else
 
+                # if $pkg is not a locally installed package, "pactree -s -r" shows reverse dependency tree of repository packages:
                 pactree -c -s -r "$pkg" | fzf -i --multi --exact --no-sort --ansi --reverse --bind=right:half-page-down,left:half-page-up --margin=4%,1%,1%,1% --inline-info --preview '
                     if ( pacman -Qq "$( echo {} | sed "s/^[│├└─ ]*//g" | cut -d " " -f 1 )" &>/dev/null )                                                 # check, if selected line contains a locally installed package.
                     then
@@ -906,7 +907,7 @@ function func_rt
                         pacman -Si "$( echo {} | sed "s/^[│├└─ ]*//g" | cut -d " " -f 1 )" --color always                                                 # display package info from repository, if package is not locally installed
 
                     fi
-                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Reverse Dependency Tree of \"$pkg\" (not installed). ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-rt
+                    ' "$( if (( $(tput cols) >= 120 )); then echo "--preview-window=right:55%:wrap"; else echo "--preview-window=bottom:55%:wrap"; fi )" --header="Repository Reverse Dependency Tree of \"$pkg\". ESC to quit." --prompt='Enter string to filter list > ' > /tmp/pacui-rt
 
             fi