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#include "screen.h"
static void print_separator(Window *window, void *ud)
{
Terminal *term = ud;
TermOutputBuffer *obuf = &term->obuf;
if (window->x + window->w == term->width) {
return;
}
for (int y = 0, h = window->h; y < h; y++) {
term_move_cursor(obuf, window->x + window->w, window->y + y);
term_add_byte(obuf, '|');
}
}
static void update_separators(Terminal *term, const ColorScheme *colors, const Frame *frame)
{
set_builtin_color(term, colors, BC_STATUSLINE);
frame_for_each_window(frame, print_separator, term);
}
static void update_line_numbers(Terminal *term, const ColorScheme *colors, Window *window, bool force)
{
const View *view = window->view;
size_t lines = view->buffer->nl;
int x = window->x;
calculate_line_numbers(window);
long first = view->vy + 1;
long last = MIN(view->vy + window->edit_h, lines);
if (
!force
&& window->line_numbers.first == first
&& window->line_numbers.last == last
) {
return;
}
window->line_numbers.first = first;
window->line_numbers.last = last;
TermOutputBuffer *obuf = &term->obuf;
char buf[DECIMAL_STR_MAX(unsigned long) + 1];
size_t width = window->line_numbers.width;
BUG_ON(width > sizeof(buf));
BUG_ON(width < LINE_NUMBERS_MIN_WIDTH);
term_output_reset(term, window->x, window->w, 0);
set_builtin_color(term, colors, BC_LINENUMBER);
for (int y = 0, h = window->edit_h, edit_y = window->edit_y; y < h; y++) {
unsigned long line = view->vy + y + 1;
memset(buf, ' ', width);
if (line <= lines) {
size_t i = width - 2;
do {
buf[i--] = (line % 10) + '0';
} while (line /= 10);
}
term_move_cursor(obuf, x, edit_y + y);
term_add_bytes(obuf, buf, width);
}
}
static void update_window_full(Window *window, void* UNUSED_ARG(data))
{
EditorState *e = window->editor;
View *view = window->view;
view_update_cursor_x(view);
view_update_cursor_y(view);
view_update(view, e->options.scroll_margin);
if (e->options.tab_bar) {
print_tabbar(&e->terminal, &e->colors, window);
}
if (e->options.show_line_numbers) {
update_line_numbers(&e->terminal, &e->colors, window, true);
}
update_range(e, view, view->vy, view->vy + window->edit_h);
update_status_line(window);
}
void update_all_windows(EditorState *e)
{
update_window_sizes(&e->terminal, e->root_frame);
frame_for_each_window(e->root_frame, update_window_full, NULL);
update_separators(&e->terminal, &e->colors, e->root_frame);
}
static void update_window(EditorState *e, Window *window)
{
if (e->options.tab_bar && window->update_tabbar) {
print_tabbar(&e->terminal, &e->colors, window);
}
const View *view = window->view;
if (e->options.show_line_numbers) {
// Force updating lines numbers if all lines changed
bool force = (view->buffer->changed_line_max == LONG_MAX);
update_line_numbers(&e->terminal, &e->colors, window, force);
}
long y1 = MAX(view->buffer->changed_line_min, view->vy);
long y2 = MIN(view->buffer->changed_line_max, view->vy + window->edit_h - 1);
update_range(e, view, y1, y2 + 1);
update_status_line(window);
}
// Update all visible views containing this buffer
void update_buffer_windows(EditorState *e, const Buffer *buffer)
{
const View *current_view = e->view;
for (size_t i = 0, n = buffer->views.count; i < n; i++) {
View *view = buffer->views.ptrs[i];
if (view != view->window->view) {
// Not visible
continue;
}
if (view != current_view) {
// Restore cursor
view->cursor.blk = BLOCK(view->buffer->blocks.next);
block_iter_goto_offset(&view->cursor, view->saved_cursor_offset);
// These have already been updated for current view
view_update_cursor_x(view);
view_update_cursor_y(view);
view_update(view, e->options.scroll_margin);
}
update_window(e, view->window);
}
}
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