handle selection new line
This commit is contained in:
153
src/main.odin
153
src/main.odin
@@ -96,24 +96,25 @@ main :: proc() {
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}
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move_cursor()
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handle_backspace()
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if repeatable_key_pressed(.ENTER) {
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// TODO: selection
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if selection.active {
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} else {
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new_line_cap := len(current_line()) - cursor.char
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bs := make([dynamic]u8, 0, len(current_line()) == 0 ? 1 : new_line_cap * 2)
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if cursor.char < len(current_line()) {
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for c, i in current_line()[cursor.char:] {
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append(&bs, c)
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}
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}
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inject_at(&lines, cursor.line + 1, bs)
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resize(current_line(), cursor.char)
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cursor.line += 1
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cursor.char = 0
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delete_selection()
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selection.active = false
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}
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new_line_cap := len(current_line()) - cursor.char
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bs := make([dynamic]u8, 0, len(current_line()) == 0 ? 1 : new_line_cap * 2)
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if cursor.char < len(current_line()) {
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for c, i in current_line()[cursor.char:] {
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append(&bs, c)
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}
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}
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inject_at(&lines, cursor.line + 1, bs)
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resize(current_line(), cursor.char)
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cursor.line += 1
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cursor.char = 0
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}
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if r.IsKeyDown(.LEFT_SUPER) && r.IsKeyPressed(.S) {
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@@ -127,66 +128,6 @@ main :: proc() {
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fmt.println("Wrote file!")
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}
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skip_backspace: if repeatable_key_pressed(.BACKSPACE) {
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if cursor.line == 0 && cursor.char == 0 do break skip_backspace
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// TODO: selection
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if selection.active {
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earliest := selection_earliest()
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latest := selection_latest()
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earliest_line := &lines[earliest.line]
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earliest_selection := get_selection_for_line(earliest_line[:], earliest.line)
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remove_range(earliest_line, earliest_selection.start, earliest_selection.end)
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if latest.line != earliest.line {
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latest_line := lines[latest.line]
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latest_selection := get_selection_for_line(latest_line[:], latest.line)
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append(earliest_line, string(latest_line[latest_selection.end:len(latest_line)]))
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ordered_remove(&lines, latest.line)
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delete(latest_line)
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if selection.start.line < selection.end.line {
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cursor.line -= 1
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}
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for i := earliest.line + 1; i < latest.line; i += 1 {
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line_to_remove := lines[i]
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defer delete(line_to_remove)
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ordered_remove(&lines, i)
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// NOTE(grant): Should we do this here?
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if selection.start.line < selection.end.line {
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cursor.line -= 1
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}
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}
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} else {
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cursor.char -= earliest_selection.end - earliest_selection.start
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}
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selection.active = false
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} else {
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if cursor.char == 0 {
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// join lines
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old_len := len(lines[cursor.line - 1])
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append(&lines[cursor.line - 1], string(current_line()[:]))
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line_to_remove := current_line()^
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defer delete(line_to_remove)
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ordered_remove(&lines, cursor.line)
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cursor.line -= 1
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cursor.char = old_len
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} else {
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if r.IsKeyDown(.LEFT_ALT) {
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// delete by word
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delete_to, found := find_previous_space(cursor.char, current_line()[:])
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if found {
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remove_range(current_line(), delete_to, cursor.char)
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cursor.char = delete_to
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} else {
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remove_range(current_line(), 0, cursor.char)
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cursor.char = 0
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}
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} else {
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// delete single char
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ordered_remove(&lines[cursor.line], cursor.char - 1)
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cursor.char -= 1
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}
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}
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}
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}
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cursor_padding := 3
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// move viewport up
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@@ -489,3 +430,69 @@ get_selection_for_line :: proc(line: []u8, line_index: int) -> Range {
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}
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return Range{start = selection_begin, end = selection_end}
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}
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handle_backspace :: proc() {
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skip_backspace: if repeatable_key_pressed(.BACKSPACE) {
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if cursor.line == 0 && cursor.char == 0 do break skip_backspace
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// TODO: selection
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if selection.active {
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delete_selection()
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selection.active = false
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} else if cursor.char == 0 {
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// join lines
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old_len := len(lines[cursor.line - 1])
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append(&lines[cursor.line - 1], string(current_line()[:]))
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line_to_remove := current_line()^
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defer delete(line_to_remove)
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ordered_remove(&lines, cursor.line)
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cursor.line -= 1
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cursor.char = old_len
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} else if r.IsKeyDown(.LEFT_ALT) {
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// delete by word
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delete_to, found := find_previous_space(cursor.char, current_line()[:])
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if found {
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remove_range(current_line(), delete_to, cursor.char)
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cursor.char = delete_to
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} else {
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remove_range(current_line(), 0, cursor.char)
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cursor.char = 0
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}
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} else {
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// delete single char
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ordered_remove(&lines[cursor.line], cursor.char - 1)
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cursor.char -= 1
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}
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}
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}
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delete_selection :: proc() {
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earliest := selection_earliest()
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latest := selection_latest()
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earliest_line := &lines[earliest.line]
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earliest_selection := get_selection_for_line(earliest_line[:], earliest.line)
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remove_range(earliest_line, earliest_selection.start, earliest_selection.end)
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if latest.line != earliest.line {
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latest_line := lines[latest.line]
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latest_selection := get_selection_for_line(latest_line[:], latest.line)
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append(earliest_line, string(latest_line[latest_selection.end:len(latest_line)]))
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ordered_remove(&lines, latest.line)
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delete(latest_line)
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if selection.start.line < selection.end.line {
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cursor.line -= 1
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if selection.start.char < selection.end.char {
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cursor.char -= selection.end.char - selection.start.char
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}
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}
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for i := earliest.line + 1; i < latest.line; i += 1 {
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line_to_remove := lines[i]
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defer delete(line_to_remove)
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ordered_remove(&lines, i)
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// NOTE(grant): Should we do this here?
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if selection.start.line < selection.end.line {
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cursor.line -= 1
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}
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}
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} else {
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cursor.char -= earliest_selection.end - earliest_selection.start
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}
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}
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