| 1 | module display_module |
| 2 | use types_module |
| 3 | use tree_module |
| 4 | use git_module |
| 5 | use terminal_module |
| 6 | implicit none |
| 7 | |
| 8 | contains |
| 9 | |
| 10 | subroutine display_tree(files, n_files) |
| 11 | type(file_entry), intent(in) :: files(:) |
| 12 | integer, intent(in) :: n_files |
| 13 | type(tree_node), pointer :: root |
| 14 | integer :: i |
| 15 | |
| 16 | ! Create root |
| 17 | allocate(root) |
| 18 | root%name = '.' |
| 19 | root%is_file = .false. |
| 20 | root%is_staged = .false. |
| 21 | root%is_unstaged = .false. |
| 22 | root%is_untracked = .false. |
| 23 | root%has_incoming = .false. |
| 24 | root%is_expanded = .true. ! Root is always expanded |
| 25 | root%first_child => null() |
| 26 | root%next_sibling => null() |
| 27 | |
| 28 | ! Build tree |
| 29 | do i = 1, n_files |
| 30 | call add_to_tree(root, files(i)%path, files(i)%is_staged, files(i)%is_unstaged, files(i)%is_untracked, files(i)%has_incoming, files(i)%is_gitignored) |
| 31 | end do |
| 32 | |
| 33 | ! Sort tree |
| 34 | call sort_tree(root) |
| 35 | |
| 36 | ! Print tree |
| 37 | call print_tree_node(root, '', .true., .true.) |
| 38 | |
| 39 | ! Cleanup |
| 40 | call free_tree(root) |
| 41 | end subroutine display_tree |
| 42 | |
| 43 | recursive subroutine print_tree_node(node, prefix, is_last, is_root) |
| 44 | type(tree_node), pointer, intent(in) :: node |
| 45 | character(len=*), intent(in) :: prefix |
| 46 | logical, intent(in) :: is_last, is_root |
| 47 | |
| 48 | character(len=1024) :: line |
| 49 | character(len=:), allocatable :: new_prefix |
| 50 | type(tree_node), pointer :: child |
| 51 | integer :: n_children, i |
| 52 | |
| 53 | ! UTF-8 box-drawing characters |
| 54 | character(len=*), parameter :: branch_last = '└──' |
| 55 | character(len=*), parameter :: branch_mid = '├──' |
| 56 | character(len=*), parameter :: vertical = '│' |
| 57 | character(len=1), parameter :: ESC = achar(27) |
| 58 | |
| 59 | ! Build colored marks |
| 60 | character(len=50) :: mark_unstaged |
| 61 | character(len=50) :: mark_untracked |
| 62 | character(len=50) :: mark_staged |
| 63 | character(len=50) :: mark_incoming |
| 64 | |
| 65 | write(mark_unstaged, '(A,A,A,A,A)') ESC, '[31m', ' ✗', ESC, '[0m' |
| 66 | write(mark_untracked, '(A,A,A,A,A)') ESC, '[90m', ' ✗', ESC, '[0m' |
| 67 | write(mark_staged, '(A,A,A,A,A)') ESC, '[32m', ' ↑', ESC, '[0m' |
| 68 | write(mark_incoming, '(A,A,A,A,A)') ESC, '[34m', ' ↓', ESC, '[0m' |
| 69 | |
| 70 | ! Count children first |
| 71 | n_children = 0 |
| 72 | child => node%first_child |
| 73 | do while (associated(child)) |
| 74 | n_children = n_children + 1 |
| 75 | child => child%next_sibling |
| 76 | end do |
| 77 | |
| 78 | ! Don't print root node |
| 79 | if (.not. is_root) then |
| 80 | ! Build line |
| 81 | if (is_last) then |
| 82 | line = prefix // branch_last // ' ' |
| 83 | else |
| 84 | line = prefix // branch_mid // ' ' |
| 85 | end if |
| 86 | |
| 87 | ! Add name with grey color if gitignored |
| 88 | if (node%is_gitignored) then |
| 89 | line = trim(line) // ESC // '[90m' // trim(node%name) // ESC // '[0m' |
| 90 | else |
| 91 | line = trim(line) // trim(node%name) |
| 92 | end if |
| 93 | |
| 94 | ! Show all applicable indicators |
| 95 | if (node%is_staged) then |
| 96 | line = trim(line) // trim(mark_staged) |
| 97 | end if |
| 98 | if (node%is_unstaged) then |
| 99 | line = trim(line) // trim(mark_unstaged) |
| 100 | end if |
| 101 | if (node%is_untracked) then |
| 102 | line = trim(line) // trim(mark_untracked) |
| 103 | end if |
| 104 | if (node%has_incoming) then |
| 105 | line = trim(line) // trim(mark_incoming) |
| 106 | end if |
| 107 | print '(A)', trim(line) |
| 108 | end if |
| 109 | |
| 110 | ! Print children |
| 111 | i = 0 |
| 112 | child => node%first_child |
| 113 | do while (associated(child)) |
| 114 | i = i + 1 |
| 115 | |
| 116 | if (is_root) then |
| 117 | new_prefix = '' |
| 118 | else |
| 119 | if (is_last) then |
| 120 | new_prefix = prefix // ' ' |
| 121 | else |
| 122 | new_prefix = prefix // vertical // ' ' |
| 123 | end if |
| 124 | end if |
| 125 | |
| 126 | call print_tree_node(child, new_prefix, i == n_children, .false.) |
| 127 | child => child%next_sibling |
| 128 | end do |
| 129 | end subroutine print_tree_node |
| 130 | |
| 131 | subroutine draw_interactive_tree(tree_root, items, n_items, selected, & |
| 132 | repo_name, branch_name, viewport_offset, visible_items, top_padding, mode, & |
| 133 | in_rename_mode, rename_buffer, rename_cursor_pos) |
| 134 | type(tree_node), pointer, intent(in) :: tree_root |
| 135 | integer, intent(in) :: n_items, selected |
| 136 | type(selectable_item), intent(in) :: items(:) |
| 137 | character(len=*), intent(in) :: repo_name, branch_name, mode, rename_buffer |
| 138 | integer, intent(in) :: viewport_offset, visible_items, top_padding, rename_cursor_pos |
| 139 | logical, intent(in) :: in_rename_mode |
| 140 | integer :: item_idx, viewport_end, i |
| 141 | character(len=512) :: status_line |
| 142 | |
| 143 | ! Add blank lines at top as padding for terminals that need it (fixes WezTerm/Ghostty) |
| 144 | do i = 1, top_padding |
| 145 | print '(A)', '' |
| 146 | end do |
| 147 | |
| 148 | ! Display repo:branch info at top with mode indicator |
| 149 | if (len_trim(repo_name) > 0 .and. len_trim(branch_name) > 0) then |
| 150 | if (mode == 'git') then |
| 151 | ! Git mode: show in yellow/orange |
| 152 | write(status_line, '(A,A,A,A,A,A,A,A,A,A,A)') & |
| 153 | achar(27) // '[1;36m', trim(repo_name), achar(27) // '[0m', & |
| 154 | ':', & |
| 155 | achar(27) // '[1;33m', trim(branch_name), achar(27) // '[0m', & |
| 156 | ' ', & |
| 157 | achar(27) // '[1;33m[ GIT MODE ]', achar(27) // '[0m' |
| 158 | else |
| 159 | ! Normal mode |
| 160 | write(status_line, '(A,A,A,A,A,A,A)') & |
| 161 | achar(27) // '[1;36m', trim(repo_name), achar(27) // '[0m', & |
| 162 | ':', & |
| 163 | achar(27) // '[1;33m', trim(branch_name), achar(27) // '[0m' |
| 164 | end if |
| 165 | print '(A)', trim(status_line) |
| 166 | print '(A)', '' |
| 167 | end if |
| 168 | |
| 169 | ! Calculate viewport range |
| 170 | viewport_end = viewport_offset + visible_items - 1 |
| 171 | if (viewport_end > n_items) viewport_end = n_items |
| 172 | |
| 173 | ! Print tree with selection highlighting |
| 174 | item_idx = 0 |
| 175 | print '(A)', '.' |
| 176 | call print_interactive_node(tree_root, '', .true., .true., items, selected, & |
| 177 | item_idx, viewport_offset, viewport_end, in_rename_mode, rename_buffer, rename_cursor_pos) |
| 178 | |
| 179 | ! Print help (mode and rename state dependent) |
| 180 | print '(A)', '' |
| 181 | if (in_rename_mode) then |
| 182 | ! Rename mode help - show in cyan |
| 183 | print '(A)', achar(27) // '[36mRENAME MODE: [a-zA-Z0-9._- ] | ←/→:cursor | Backspace:del | Tab:save | ESC:cancel' // achar(27) // '[0m' |
| 184 | else if (mode == 'git') then |
| 185 | ! Git mode help - show in yellow tint |
| 186 | print '(A)', achar(27) // '[33mLegend: ' // achar(27) // '[32m↑' // achar(27) // '[0m=staged ' // & |
| 187 | achar(27) // '[31m✗' // achar(27) // '[0m=modified ' // & |
| 188 | achar(27) // '[90m✗' // achar(27) // '[0m=untracked ' // & |
| 189 | achar(27) // '[34m↓' // achar(27) // '[0m=incoming' // achar(27) // '[0m' |
| 190 | print '(A)', achar(27) // '[33mKeys: j/k/↑/↓:nav | ←/→:nav tree | space:toggle | .:hide-dots | alt-n:rename | a:stage | u:unstage | S:stage-all | U:unstage-all | x:discard | z:stash | Z:unstash | b:switch | n:new-br | R:del-br | G:merge | O:reset | I:rebase | f:fetch | d:diff | c/alt-v:view | w:blame | h:history | L:reflog | y:cherry-pick | v:revert | r:delete | l:pull | m:commit | M:amend | p:push | t:tag | s/alt-s:status | q:exit-mode | ESC:exit-mode | ctrl-c:quit' // achar(27) // '[0m' |
| 191 | else |
| 192 | ! Normal mode help |
| 193 | print '(A)', 'Legend: ' // achar(27) // '[32m↑' // achar(27) // '[0m=staged ' // & |
| 194 | achar(27) // '[31m✗' // achar(27) // '[0m=modified ' // & |
| 195 | achar(27) // '[90m✗' // achar(27) // '[0m=untracked ' // & |
| 196 | achar(27) // '[34m↓' // achar(27) // '[0m=incoming' |
| 197 | print '(A)', 'Keys: j/k/↑/↓:nav | ←/→:nav tree | space:toggle | .:hide-dots | alt-n:rename | alt-v:view | alt-s:status | alt-g:git-mode | ctrl-c:quit' |
| 198 | end if |
| 199 | |
| 200 | ! Don't free tree - it's owned by interactive_mode |
| 201 | end subroutine draw_interactive_tree |
| 202 | |
| 203 | recursive subroutine print_interactive_node(node, prefix, is_last, is_root, items, selected, & |
| 204 | item_idx, viewport_offset, viewport_end, in_rename_mode, rename_buffer, rename_cursor_pos) |
| 205 | type(tree_node), pointer, intent(in) :: node |
| 206 | character(len=*), intent(in) :: prefix, rename_buffer |
| 207 | logical, intent(in) :: is_last, is_root, in_rename_mode |
| 208 | type(selectable_item), intent(in) :: items(:) |
| 209 | integer, intent(in) :: selected, viewport_offset, viewport_end, rename_cursor_pos |
| 210 | integer, intent(inout) :: item_idx |
| 211 | |
| 212 | character(len=1024) :: line |
| 213 | character(len=:), allocatable :: new_prefix |
| 214 | type(tree_node), pointer :: child |
| 215 | integer :: n_children, i |
| 216 | logical :: is_selected |
| 217 | |
| 218 | character(len=*), parameter :: branch_last = '└──' |
| 219 | character(len=*), parameter :: branch_mid = '├──' |
| 220 | character(len=*), parameter :: vertical = '│' |
| 221 | character(len=*), parameter :: highlight_on = achar(27) // '[7m' |
| 222 | character(len=*), parameter :: highlight_off = achar(27) // '[0m' |
| 223 | character(len=1), parameter :: ESC = achar(27) |
| 224 | |
| 225 | ! Build colored marks |
| 226 | character(len=50) :: mark_unstaged |
| 227 | character(len=50) :: mark_untracked |
| 228 | character(len=50) :: mark_staged |
| 229 | character(len=50) :: mark_incoming |
| 230 | |
| 231 | write(mark_unstaged, '(A,A,A,A,A)') ESC, '[31m', ' ✗', ESC, '[0m' |
| 232 | write(mark_untracked, '(A,A,A,A,A)') ESC, '[90m', ' ✗', ESC, '[0m' |
| 233 | write(mark_staged, '(A,A,A,A,A)') ESC, '[32m', ' ↑', ESC, '[0m' |
| 234 | write(mark_incoming, '(A,A,A,A,A)') ESC, '[34m', ' ↓', ESC, '[0m' |
| 235 | |
| 236 | ! Count children first |
| 237 | n_children = 0 |
| 238 | child => node%first_child |
| 239 | do while (associated(child)) |
| 240 | n_children = n_children + 1 |
| 241 | child => child%next_sibling |
| 242 | end do |
| 243 | |
| 244 | ! Don't print root node |
| 245 | if (.not. is_root) then |
| 246 | ! Increment item index for all nodes |
| 247 | item_idx = item_idx + 1 |
| 248 | is_selected = (item_idx == selected) |
| 249 | |
| 250 | ! Only print if within viewport range |
| 251 | if (item_idx >= viewport_offset .and. item_idx <= viewport_end) then |
| 252 | ! Build line with appropriate branch character |
| 253 | if (is_last) then |
| 254 | line = prefix // branch_last // ' ' |
| 255 | else |
| 256 | line = prefix // branch_mid // ' ' |
| 257 | end if |
| 258 | |
| 259 | ! Add expand/collapse indicator for directories |
| 260 | if (.not. node%is_file) then |
| 261 | if (node%is_expanded) then |
| 262 | line = trim(line) // '▼ ' |
| 263 | else |
| 264 | line = trim(line) // '▶ ' |
| 265 | end if |
| 266 | end if |
| 267 | |
| 268 | ! Add name with highlighting if selected |
| 269 | if (is_selected) then |
| 270 | ! Special handling for rename mode |
| 271 | if (in_rename_mode) then |
| 272 | ! Show editable name with cursor at correct position |
| 273 | if (rename_cursor_pos == len_trim(rename_buffer)) then |
| 274 | ! Cursor at end |
| 275 | line = trim(line) // highlight_on // trim(rename_buffer) // '█' // highlight_off |
| 276 | else if (rename_cursor_pos == 0) then |
| 277 | ! Cursor at beginning |
| 278 | line = trim(line) // highlight_on // '█' // trim(rename_buffer) // highlight_off |
| 279 | else |
| 280 | ! Cursor in middle |
| 281 | line = trim(line) // highlight_on // rename_buffer(1:rename_cursor_pos) // '█' // & |
| 282 | rename_buffer(rename_cursor_pos+1:len_trim(rename_buffer)) // highlight_off |
| 283 | end if |
| 284 | else |
| 285 | ! Normal selection highlighting |
| 286 | if (node%is_gitignored) then |
| 287 | line = trim(line) // highlight_on // ESC // '[90m' // trim(node%name) // ESC // '[0m' |
| 288 | else |
| 289 | line = trim(line) // highlight_on // trim(node%name) |
| 290 | end if |
| 291 | if (node%is_staged) then |
| 292 | line = trim(line) // trim(mark_staged) |
| 293 | end if |
| 294 | if (node%is_unstaged) then |
| 295 | line = trim(line) // trim(mark_unstaged) |
| 296 | end if |
| 297 | if (node%is_untracked) then |
| 298 | line = trim(line) // trim(mark_untracked) |
| 299 | end if |
| 300 | if (node%has_incoming) then |
| 301 | line = trim(line) // trim(mark_incoming) |
| 302 | end if |
| 303 | line = trim(line) // highlight_off |
| 304 | end if |
| 305 | else |
| 306 | if (node%is_gitignored) then |
| 307 | line = trim(line) // ESC // '[90m' // trim(node%name) // ESC // '[0m' |
| 308 | else |
| 309 | line = trim(line) // trim(node%name) |
| 310 | end if |
| 311 | if (node%is_staged) then |
| 312 | line = trim(line) // trim(mark_staged) |
| 313 | end if |
| 314 | if (node%is_unstaged) then |
| 315 | line = trim(line) // trim(mark_unstaged) |
| 316 | end if |
| 317 | if (node%is_untracked) then |
| 318 | line = trim(line) // trim(mark_untracked) |
| 319 | end if |
| 320 | if (node%has_incoming) then |
| 321 | line = trim(line) // trim(mark_incoming) |
| 322 | end if |
| 323 | end if |
| 324 | |
| 325 | print '(A)', trim(line) |
| 326 | end if |
| 327 | end if |
| 328 | |
| 329 | ! Print children only if expanded (or if this is root) |
| 330 | if (node%is_expanded) then |
| 331 | i = 0 |
| 332 | child => node%first_child |
| 333 | do while (associated(child)) |
| 334 | i = i + 1 |
| 335 | |
| 336 | if (is_root) then |
| 337 | new_prefix = '' |
| 338 | else |
| 339 | if (is_last) then |
| 340 | new_prefix = prefix // ' ' |
| 341 | else |
| 342 | new_prefix = prefix // vertical // ' ' |
| 343 | end if |
| 344 | end if |
| 345 | |
| 346 | call print_interactive_node(child, new_prefix, i == n_children, .false., items, selected, & |
| 347 | item_idx, viewport_offset, viewport_end, in_rename_mode, rename_buffer, rename_cursor_pos) |
| 348 | child => child%next_sibling |
| 349 | end do |
| 350 | end if |
| 351 | end subroutine print_interactive_node |
| 352 | |
| 353 | subroutine draw_status_view(status_lines, n_lines) |
| 354 | character(len=*), intent(in) :: status_lines(:) |
| 355 | integer, intent(in) :: n_lines |
| 356 | integer :: i |
| 357 | |
| 358 | ! Clear screen |
| 359 | call clear_screen() |
| 360 | |
| 361 | ! Display header |
| 362 | print '(A)', achar(27) // '[1mGit Status' // achar(27) // '[0m' |
| 363 | print '(A)', '==========================================' |
| 364 | print '(A)', '' |
| 365 | |
| 366 | ! Display status output |
| 367 | do i = 1, n_lines |
| 368 | print '(A)', trim(status_lines(i)) |
| 369 | end do |
| 370 | |
| 371 | ! Display footer |
| 372 | print '(A)', '' |
| 373 | print '(A)', '==========================================' |
| 374 | print '(A)', 'Press any key to return to tree view...' |
| 375 | end subroutine draw_status_view |
| 376 | |
| 377 | end module display_module |
| 378 |