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#include <string.h>
#include "screen.h"
#include "frame.h"
#include "terminal/cursor.h"
#include "terminal/ioctl.h"
#include "util/log.h"
void set_color(Terminal *term, const ColorScheme *colors, const TermColor *color)
{
TermColor tmp = *color;
// NOTE: -2 (keep) is treated as -1 (default)
if (tmp.fg < 0) {
tmp.fg = colors->builtin[BC_DEFAULT].fg;
}
if (tmp.bg < 0) {
tmp.bg = colors->builtin[BC_DEFAULT].bg;
}
if (same_color(&tmp, &term->obuf.color)) {
return;
}
term_set_color(term, &tmp);
}
void set_builtin_color(Terminal *term, const ColorScheme *colors, BuiltinColorEnum c)
{
set_color(term, colors, &colors->builtin[c]);
}
static void update_cursor_style(EditorState *e)
{
CursorInputMode mode;
switch (e->input_mode) {
case INPUT_NORMAL:
if (e->buffer->options.overwrite) {
mode = CURSOR_MODE_OVERWRITE;
} else {
mode = CURSOR_MODE_INSERT;
}
break;
case INPUT_COMMAND:
case INPUT_SEARCH:
mode = CURSOR_MODE_CMDLINE;
break;
default:
BUG("unhandled input mode");
return;
}
TermCursorStyle style = e->cursor_styles[mode];
TermCursorStyle def = e->cursor_styles[CURSOR_MODE_DEFAULT];
if (style.type == CURSOR_KEEP) {
style.type = def.type;
}
if (style.color == COLOR_KEEP) {
style.color = def.color;
}
e->cursor_style_changed = false;
if (!same_cursor(&style, &e->terminal.obuf.cursor_style)) {
term_set_cursor_style(&e->terminal, style);
}
}
void update_term_title(Terminal *term, const Buffer *buffer, bool set_window_title)
{
if (!set_window_title || !(term->features & TFLAG_SET_WINDOW_TITLE)) {
return;
}
// FIXME: title must not contain control characters
TermOutputBuffer *obuf = &term->obuf;
const char *filename = buffer_filename(buffer);
term_add_literal(obuf, "\033]2;");
term_add_bytes(obuf, filename, strlen(filename));
term_add_byte(obuf, ' ');
term_add_byte(obuf, buffer_modified(buffer) ? '+' : '-');
term_add_literal(obuf, " dte\033\\");
}
void mask_color(TermColor *color, const TermColor *over)
{
if (over->fg != COLOR_KEEP) {
color->fg = over->fg;
}
if (over->bg != COLOR_KEEP) {
color->bg = over->bg;
}
if (!(over->attr & ATTR_KEEP)) {
color->attr = over->attr;
}
}
void restore_cursor(EditorState *e)
{
unsigned int x, y;
switch (e->input_mode) {
case INPUT_NORMAL:
x = e->window->edit_x + e->view->cx_display - e->view->vx;
y = e->window->edit_y + e->view->cy - e->view->vy;
break;
case INPUT_COMMAND:
case INPUT_SEARCH:
x = e->cmdline_x;
y = e->terminal.height - 1;
break;
default:
BUG("unhandled input mode");
}
term_move_cursor(&e->terminal.obuf, x, y);
}
static void clear_update_tabbar(Window *window, void* UNUSED_ARG(data))
{
window->update_tabbar = false;
}
void end_update(EditorState *e)
{
Terminal *term = &e->terminal;
restore_cursor(e);
term_show_cursor(term);
term_end_sync_update(term);
term_output_flush(&term->obuf);
e->buffer->changed_line_min = LONG_MAX;
e->buffer->changed_line_max = -1;
frame_for_each_window(e->root_frame, clear_update_tabbar, NULL);
}
void start_update(Terminal *term)
{
term_begin_sync_update(term);
term_hide_cursor(term);
}
void update_window_sizes(Terminal *term, Frame *frame)
{
set_frame_size(frame, term->width, term->height - 1);
update_window_coordinates(frame);
}
void update_screen_size(Terminal *term, Frame *root_frame)
{
unsigned int width, height;
if (!term_get_size(&width, &height)) {
return;
}
// TODO: remove minimum width/height and instead make update_screen()
// do something sensible when the terminal dimensions are tiny
term->width = MAX(width, 3);
term->height = MAX(height, 3);
update_window_sizes(term, root_frame);
LOG_INFO("terminal size: %ux%u", width, height);
}
NOINLINE
void normal_update(EditorState *e)
{
Terminal *term = &e->terminal;
start_update(term);
update_term_title(term, e->buffer, e->options.set_window_title);
update_all_windows(e);
update_command_line(e);
update_cursor_style(e);
end_update(e);
}
void update_screen(EditorState *e, const ScreenState *s)
{
if (e->everything_changed) {
e->everything_changed = false;
normal_update(e);
return;
}
Buffer *buffer = e->buffer;
View *view = e->view;
view_update_cursor_x(view);
view_update_cursor_y(view);
view_update(view, e->options.scroll_margin);
if (s->id == buffer->id) {
if (s->vx != view->vx || s->vy != view->vy) {
mark_all_lines_changed(buffer);
} else {
// Because of trailing whitespace highlighting and highlighting
// current line in different color, the lines cy (old cursor y) and
// view->cy need to be updated. Always update at least current line.
buffer_mark_lines_changed(buffer, s->cy, view->cy);
}
if (s->is_modified != buffer_modified(buffer)) {
mark_buffer_tabbars_changed(buffer);
}
} else {
e->window->update_tabbar = true;
mark_all_lines_changed(buffer);
}
start_update(&e->terminal);
if (e->window->update_tabbar) {
update_term_title(&e->terminal, e->buffer, e->options.set_window_title);
}
update_buffer_windows(e, buffer);
update_command_line(e);
if (e->cursor_style_changed) {
update_cursor_style(e);
}
end_update(e);
}
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