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#include <raleigh/w/entry.h>
#include <knob/format.h>
#include <knob/block.h>
#include <knob/heap.h>
#include <knob/key.h>
namespace raleigh {
entry::entry(uint32_t rows, uint32_t cols, const char *default_text,
const char *font, _pixel_t bg, _pixel_t fg, _pixel_t border_color)
: rows(rows), cols(cols), bg(bg), fg(fg), border_color(border_color),
fi(get_font(font)), data(new char[rows * cols]),
line_indices(new uint32_t[rows + 1]), first_paint(true),
has_focus(false) {
size = coord(fi->space_width * (cols - 1) + fi->char_width + 6,
fi->space_height * (rows - 1) + fi->char_height + 6);
closest_opaque = this;
const uint32_t l = strlen(default_text);
const uint32_t cl = l > rows * cols - 1 ? rows * cols - 1 : l;
blockcpy(data, default_text, cl);
data[cl] = '\0';
line_indices[0] = 0;
get_indices(0, 0, 0);
cur_x = end_x;
cur_y = end_y;
cur_d = end_d;
}
void entry::get_indices(uint32_t from_y, uint32_t from_x, uint32_t from_d) {
while (1) {
const uint32_t ln = str_find_any(data + from_d, " \n");
bool quit_after = !data[from_d + ln];
if ((from_x + ln <= cols) || (ln >= cols)) {
from_x += ln;
from_d += ln;
if (data[from_d] == '\n') {
++from_y;
from_x = 0;
line_indices[from_y] = from_d + 1;
}
else
++from_x;
++from_d;
if (from_x >= cols) {
++from_y;
from_x = 0;
line_indices[from_y] = from_d;
}
if (quit_after)
break;
}
else {
++from_y;
from_x = 0;
line_indices[from_y] = from_d;
}
}
line_indices[from_y + 1] = from_d;
end_y = from_y;
end_x = from_x;
end_d = from_d;
}
void entry::notify_window_change() {}
void entry::paint_text(_pixel_t *pixbuf, uint32_t pitch) {
for (uint32_t y = 0; y <= end_y; ++y) {
const char *const line = data + line_indices[y];
const uint32_t len = line_indices[y + 1] - line_indices[y] >= cols ? cols : line_indices[y + 1] - line_indices[y];
for (uint32_t x = 0; x < len; ++x)
if ((line[x] != '\n') && line[x])
put_char_no_bg(fi, line[x], pixbuf + (window_offset.y + 3 + y * fi->space_height) * pitch + (window_offset.x + 3 + x * fi->space_width), pitch, fg);
}
}
void entry::paint(_pixel_t *pixbuf, uint32_t pitch) {
_pixel_t *const cur_ptr = pixbuf + (window_offset.y + 3 + cur_y * fi->space_height) * pitch + (window_offset.x + 3 + cur_x * fi->space_width);
_pixel_t *const old_cur_ptr = pixbuf + (window_offset.y + 3 + cur_y_last_paint * fi->space_height) * pitch + (window_offset.x + 3 + cur_x_last_paint * fi->space_width);
if (first_paint) {
for (uint32_t x = 0; x < size.x; ++x) {
pixbuf[(window_offset.y) * pitch + window_offset.x + x] = border_color;
pixbuf[(window_offset.y + size.y - 1) * pitch + window_offset.x + x] = border_color;
}
for (uint32_t y = 1; y < size.y - 1; ++y) {
pixbuf[(window_offset.y + y) * pitch + window_offset.x] = border_color;
pixbuf[(window_offset.y + y) * pitch + window_offset.x + size.x - 1] = border_color;
}
for (uint32_t y = 1; y < size.y - 1; ++y)
for (uint32_t x = 1; x < size.x - 1; ++x)
pixbuf[(window_offset.y + y) * pitch + (window_offset.x + x)] = bg;
paint_text(pixbuf, pitch);
first_paint = false;
}
else if (text_changed_since_last_paint) {
for (uint32_t y = 3; y < size.y - 3; ++y)
for (uint32_t x = 3; x < size.x - 3; ++x)
pixbuf[(window_offset.y + y) * pitch + (window_offset.x + x)] = bg;
paint_text(pixbuf, pitch);
text_changed_since_last_paint = false;
}
else if (had_focus_last_paint) {
for (uint32_t y = 0; y < fi->char_height; ++y) {
old_cur_ptr[y * pitch] = bg;
old_cur_ptr[y * pitch + 1] = bg;
}
if (data[cur_d_last_paint] && (data[cur_d_last_paint] != '\n') && (cur_d_last_paint < line_indices[cur_y_last_paint + 1]))
put_char_no_bg(fi, data[cur_d_last_paint], old_cur_ptr, pitch, fg);
}
if (has_focus)
for (uint32_t y = 0; y < fi->char_height; ++y) {
cur_ptr[y * pitch] = fg;
cur_ptr[y * pitch + 1] = fg;
}
cur_y_last_paint = cur_y;
cur_x_last_paint = cur_x;
cur_d_last_paint = cur_d;
had_focus_last_paint = has_focus;
}
void entry::ensure_cursor_in_line() {
cur_d = line_indices[cur_y] + cur_x;
if (cur_d >= line_indices[cur_y + 1]) {
cur_d = line_indices[cur_y + 1] - 1;
if (data[cur_d] && (data[cur_d] != '\n'))
++cur_d;
cur_x = cur_d - line_indices[cur_y];
}
}
void entry::handle_click(coord window_coords, enum mouse_packet::mouse_button click_type, bool up) {
if (up || (click_type != mouse_packet::LEFT))
return;
if (window_coords.x - window_offset.x < 3)
window_coords.x = 3 + window_offset.x;
else if (window_coords.x - window_offset.x > size.x - 4)
window_coords.x = size.x - 4 + window_offset.x;
if (window_coords.y - window_offset.y < 3)
window_coords.y = 3 + window_offset.y;
else if (window_coords.y - window_offset.y > size.y - 4)
window_coords.y = size.y - 4 + window_offset.y;
cur_y = (window_coords.y - window_offset.y - 3) / fi->space_height;
cur_x = (window_coords.x - window_offset.x - 3) / fi->space_width;
if (cur_y > end_y) {
cur_y = end_y;
cur_x = end_x;
}
ensure_cursor_in_line();
if (has_focus)
w->notify_needs_paint(*this);
else
w->focus(*this);
}
void entry::notify_has_opaque_parent(widget *parent) {}
bool entry::cursor_left() {
if (cur_x) {
--cur_x;
--cur_d;
return true;
}
if (!cur_y)
return false;
--cur_y;
cur_x = line_indices[cur_y + 1] - line_indices[cur_y] - 1;
if (cur_x == cols)
--cur_x;
cur_d = line_indices[cur_y] + cur_x;
return true;
}
bool entry::cursor_right() {
if (cur_d >= (end_d - 1))
return false;
++cur_d;
++cur_x;
if (cur_d >= line_indices[cur_y + 1]) {
cur_x = 0;
++cur_y;
cur_d = line_indices[cur_y];
}
return true;
}
bool entry::cursor_up() {
if (!cur_y)
return false;
--cur_y;
ensure_cursor_in_line();
return true;
}
bool entry::cursor_down() {
if (cur_y == end_y)
return false;
++cur_y;
ensure_cursor_in_line();
return true;
}
void entry::handle_key(struct key_packet kp) {
switch (kp.key_id) {
case kp.KEY_LEFT_ARROW:
if (cursor_left() && has_focus)
w->notify_needs_paint(*this);
break;
case kp.KEY_RIGHT_ARROW:
if (cursor_right() && has_focus)
w->notify_needs_paint(*this);
break;
case kp.KEY_DOWN_ARROW:
if (cursor_down() && has_focus)
w->notify_needs_paint(*this);
break;
case kp.KEY_UP_ARROW:
if (cursor_up() && has_focus)
w->notify_needs_paint(*this);
break;
case kp.KEY_HOME:
if (cur_x) {
cur_x = 0;
if (has_focus)
w->notify_needs_paint(*this);
}
break;
case kp.KEY_END:
cur_x = cols;
ensure_cursor_in_line();
if (has_focus)
w->notify_needs_paint(*this);
break;
default:
break;
}
}
void entry::on_focus() {
has_focus = true;
w->notify_needs_paint(*this);
}
void entry::on_unfocus() {
has_focus = false;
w->notify_needs_paint(*this);
}
}
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