char ch = primary ? 'F' : 'M', *other;
- if (!INGRID(state, x, y) || !INGRID(state, x2, y2)) return "";
+ if (!INGRID(state, x, y) || !INGRID(state, x2, y2)) return UI_UPDATE;
/* disallow laying a mark over a line, or vice versa. */
other = primary ? state->marks : state->lines;
- if (other[y*w+x] & dir || other[y2*w+x2] & dir2) return "";
+ if (other[y*w+x] & dir || other[y2*w+x2] & dir2) return UI_UPDATE;
sprintf(buf, "%c%d,%d,%d;%c%d,%d,%d", ch, dir, x, y, ch, dir2, x2, y2);
return dupstr(buf);
ui->dragcoords[0] = gy * w + gx;
ui->ndragcoords = 0; /* will be 1 once drag is confirmed */
- return "";
+ return UI_UPDATE;
}
if (button == LEFT_DRAG && ui->ndragcoords >= 0) {
update_ui_drag(state, ui, gx, gy);
- return "";
+ return UI_UPDATE;
}
if (IS_MOUSE_RELEASE(button)) release = TRUE;
if (ui->ndragcoords >= 0)
update_ui_drag(state, ui, ui->curx, ui->cury);
}
- return "";
+ return UI_UPDATE;
}
if (IS_CURSOR_SELECT(button)) {
if (!ui->cursor_active) {
ui->cursor_active = TRUE;
- return "";
+ return UI_UPDATE;
} else if (button == CURSOR_SELECT) {
if (ui->ndragcoords == -1) {
ui->ndragcoords = 0;
ui->dragcoords[0] = ui->cury * w + ui->curx;
ui->clickx = CENTERED_COORD(ui->curx);
ui->clicky = CENTERED_COORD(ui->cury);
- return "";
+ return UI_UPDATE;
} else release = TRUE;
} else if (button == CURSOR_SELECT2 && ui->ndragcoords >= 0) {
ui->ndragcoords = -1;
- return "";
+ return UI_UPDATE;
}
}
if (button == 27 || button == '\b') {
ui->ndragcoords = -1;
- return "";
+ return UI_UPDATE;
}
if (release) {
ui->ndragcoords = -1;
- return buf ? buf : "";
+ return buf ? buf : UI_UPDATE;
} else if (ui->ndragcoords == 0) {
/* Click (or tiny drag). Work out which edge we were
* closest to. */
cx = CENTERED_COORD(gx);
cy = CENTERED_COORD(gy);
- if (!INGRID(state, gx, gy)) return "";
+ if (!INGRID(state, gx, gy)) return UI_UPDATE;
if (max(abs(x-cx),abs(y-cy)) < TILE_SIZE/4) {
/* TODO closer to centre of grid: process as a cell click not an edge click. */
- return "";
+ return UI_UPDATE;
} else {
int direction;
if (abs(x-cx) < abs(y-cy)) {