bool ScanSequence::is_valid() const {
bool res = true;
int num_lines = static_cast<int>(get_num_lines());
for (int line_no = 0; line_no < num_lines; line_no++) {
if (!get_scanline(line_no).is_valid()) res = false;
}
return res;
}
static int message_handle_key_editmode(struct key_event * k)
{
int line_len, num_lines = -1;
int new_cursor_line = cursor_line;
int new_cursor_char = cursor_char;
char *ptr;
int doing_drag = 0;
int clipl, clipr, cp;
if (k->mouse == MOUSE_SCROLL_UP) {
if (k->state == KEY_RELEASE)
return 0;
new_cursor_line -= MOUSE_SCROLL_LINES;
} else if (k->mouse == MOUSE_SCROLL_DOWN) {
if (k->state == KEY_RELEASE)
return 0;
new_cursor_line += MOUSE_SCROLL_LINES;
} else if (k->mouse == MOUSE_CLICK && k->mouse_button == 2) {
if (k->state == KEY_RELEASE)
status.flags |= CLIPPY_PASTE_SELECTION;
return 1;
} else if (k->mouse == MOUSE_CLICK) {
if (k->x >= 2 && k->x <= 77 && k->y >= 13 && k->y <= 47) {
new_cursor_line = (k->y - 13) + top_line;
new_cursor_char = (k->x - 2);
if (k->sx != k->x || k->sy != k->y) {
/* yay drag operation */
cp = get_absolute_position(current_song->message, (k->sy-13)+top_line,
(k->sx-2));
widgets_message[0].clip_start = cp;
doing_drag = 1;
}
}
}
line_len = get_nth_line(current_song->message, cursor_line, &ptr);
switch (k->sym) {
case SDLK_UP:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_line--;
break;
case SDLK_DOWN:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_line++;
break;
case SDLK_LEFT:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_char--;
break;
case SDLK_RIGHT:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_char++;
break;
case SDLK_PAGEUP:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_line -= 35;
break;
case SDLK_PAGEDOWN:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
new_cursor_line += 35;
break;
case SDLK_HOME:
if (k->state == KEY_RELEASE)
return 1;
if (k->mod & KMOD_CTRL)
new_cursor_line = 0;
else
new_cursor_char = 0;
break;
case SDLK_END:
if (k->state == KEY_RELEASE)
return 1;
if (k->mod & KMOD_CTRL) {
num_lines = get_num_lines(current_song->message);
new_cursor_line = num_lines;
} else {
new_cursor_char = line_len;
}
break;
case SDLK_ESCAPE:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
message_set_viewmode();
memused_songchanged();
return 1;
case SDLK_BACKSPACE:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
if (k->sym && clippy_owner(CLIPPY_SELECT) == widgets_message) {
_delete_selection();
} else {
message_delete_char();
}
return 1;
case SDLK_DELETE:
if (!NO_MODIFIER(k->mod))
return 0;
if (k->state == KEY_RELEASE)
return 1;
if (k->sym && clippy_owner(CLIPPY_SELECT) == widgets_message) {
_delete_selection();
} else {
message_delete_next_char();
}
return 1;
default:
if (k->mod & KMOD_CTRL) {
if (k->state == KEY_RELEASE)
return 1;
if (k->sym == SDLK_t) {
message_extfont = !message_extfont;
break;
} else if (k->sym == SDLK_y) {
clippy_select(NULL, NULL, 0);
message_delete_line();
break;
}
} else if (k->mod & KMOD_ALT) {
if (k->state == KEY_RELEASE)
return 1;
if (k->sym == SDLK_c) {
prompt_message_clear();
return 1;
}
} else if (k->mouse == MOUSE_NONE) {
if (k->unicode == '\r' || k->unicode == '\t'
|| k->unicode >= 32) {
if (k->state == KEY_RELEASE)
return 1;
if (k->sym && clippy_owner(CLIPPY_SELECT) == widgets_message) {
_delete_selection();
}
if (k->mod & (KMOD_SHIFT|KMOD_CAPS)) {
message_insert_char(toupper((unsigned int)k->unicode));
} else {
message_insert_char(k->unicode);
}
return 1;
}
return 0;
}
if (k->mouse != MOUSE_CLICK)
return 0;
if (k->state == KEY_RELEASE)
return 1;
if (!doing_drag) {
clippy_select(NULL, NULL, 0);
}
}
if (new_cursor_line != cursor_line) {
if (num_lines == -1)
num_lines = get_num_lines(current_song->message);
if (new_cursor_line < 0)
new_cursor_line = 0;
else if (new_cursor_line > num_lines)
new_cursor_line = num_lines;
/* make sure the cursor doesn't go past the new eol */
line_len = get_nth_line(current_song->message, new_cursor_line, &ptr);
if (new_cursor_char > line_len)
new_cursor_char = line_len;
cursor_char = new_cursor_char;
cursor_line = new_cursor_line;
} else if (new_cursor_char != cursor_char) {
/* we say "else" here ESPECIALLY because the mouse can only come
in the top section - not because it's some clever optimization */
if (new_cursor_char < 0) {
if (cursor_line == 0) {
new_cursor_char = cursor_char;
} else {
cursor_line--;
new_cursor_char =
get_nth_line(current_song->message, cursor_line, &ptr);
}
} else if (new_cursor_char >
get_nth_line(current_song->message, cursor_line, &ptr)) {
if (cursor_line == get_num_lines(current_song->message)) {
new_cursor_char = cursor_char;
} else {
cursor_line++;
new_cursor_char = 0;
}
}
cursor_char = new_cursor_char;
}
message_reposition();
cursor_pos = get_absolute_position(current_song->message, cursor_line, cursor_char);
if (doing_drag) {
widgets_message[0].clip_end = cursor_pos;
clipl = widgets_message[0].clip_start;
clipr = widgets_message[0].clip_end;
if (clipl > clipr) {
cp = clipl;
clipl = clipr;
clipr = cp;
}
clippy_select(widgets_message, (current_song->message+clipl), clipr-clipl);
}
status.flags |= NEED_UPDATE;
return 1;
}
static int message_handle_key_viewmode(struct key_event * k)
{
if (k->state == KEY_PRESS) {
if (k->mouse == MOUSE_SCROLL_UP) {
top_line -= MOUSE_SCROLL_LINES;
} else if (k->mouse == MOUSE_SCROLL_DOWN) {
top_line += MOUSE_SCROLL_LINES;
} else if (k->mouse == MOUSE_CLICK) {
message_set_editmode();
return message_handle_key_editmode(k);
}
}
switch (k->sym) {
case SDLK_UP:
if (k->state == KEY_RELEASE)
return 0;
top_line--;
break;
case SDLK_DOWN:
if (k->state == KEY_RELEASE)
return 0;
top_line++;
break;
case SDLK_PAGEUP:
if (k->state == KEY_RELEASE)
return 0;
top_line -= 35;
break;
case SDLK_PAGEDOWN:
if (k->state == KEY_RELEASE)
return 0;
top_line += 35;
break;
case SDLK_HOME:
if (k->state == KEY_RELEASE)
return 0;
top_line = 0;
break;
case SDLK_END:
if (k->state == KEY_RELEASE)
return 0;
top_line = get_num_lines(current_song->message) - 34;
break;
case SDLK_t:
if (k->state == KEY_RELEASE)
return 0;
if (k->mod & KMOD_CTRL) {
message_extfont = !message_extfont;
break;
}
return 1;
case SDLK_RETURN:
if (k->state == KEY_PRESS)
return 0;
message_set_editmode();
return 1;
default:
return 0;
}
if (top_line < 0)
top_line = 0;
status.flags |= NEED_UPDATE;
return 1;
}
const Scanline& ScanSequence::get_scanline(int index) const {
if (index < 0 || index >= get_num_lines()) {
throw std::runtime_error("ScanSequence::Invalid index.");
}
return scanlines[index];
}
