void EditorTools::onMathEdit(){
bool ok;
QString text = QInputDialog::getText(this, tr("Apply expression to image"),
tr("\"A\" represents the current image. Examples:\n"
"A + 3 -> adds 3 to every pixel\n"
"fft(A) -> takes the fourier transform of the image\n"
"\n"
"Expression:"),
QLineEdit::Normal,
"A + 0", &ok);
if (ok && !text.isEmpty()){
const Image * image_list[2] = {0,0};
if(editor->editorView()->selectedImage() && editor->editorView()->selectedImage()->getImage()){
image_list[0] = editor->editorView()->selectedImage()->getImage();
}
qDebug("Got formula %s\n",text.toAscii().data());
Math_Output * out = evaluate_math_expression(text.toAscii().data(),image_list);
if(out->type == MathOutputImage){
/* We got a new image */
ImageItem * item = new ImageItem(out->image,QString(),editor->editorView());
editor->editorView()->setImage(item);
}else if(out->type == MathOutputScalar){
/* We got a scalar. Show it to the user */
QString out_text;
out_text = QString("Expression evaluated to %0 + %1 i").arg(sp_real(out->scalar)).arg(sp_imag(out->scalar));
QMessageBox::information ( 0,tr("Apply expression to image"),out_text);
}else if(out->type == MathOutputError){
QString out_text(out->error_msg);
QMessageBox::warning( 0,tr("Apply expression to image"),out_text);
}
}
}
static void dispatch_out(void) {
// update latest serial received
if (out_packet_ptr) {
in_packet[0] = out_packet[0];
if (in_packet_ptr == 0) {
in_packet_ptr = 1;
}
}
unsigned char ptr = 1;
while (ptr < out_packet_ptr) {
unsigned char code = out_packet[ptr];
++ptr;
unsigned char sz = code & 0xf;
if (sz == 15) {
if (ptr == out_packet_ptr) {
goto too_big;
}
sz = out_packet[ptr];
++ptr;
}
if (ptr + sz > out_packet_ptr || ptr + sz < ptr) {
too_big:
MY_Failure("Too big recv", ptr + sz, out_packet_ptr);
}
unsigned char code_ix = (code & 0xf0) >> 4;
if (code_ix >= sizeof(min_size)) {
unknown_op:
MY_Failure("Unknown op", code & 0xf0, sz);
}
unsigned char msz = 0;
memcpy_P(&msz, &min_size[code_ix], 1);
if (sz < msz) {
MY_Failure("Too small data", sz, code);
}
unsigned char *base = &out_packet[ptr];
switch (code & 0xf0) {
case OpSetStatus:
set_status(base[0], sz-1, base+1);
break;
case OpGetStatus:
get_status(base[0]);
break;
case OpWriteServo:
write_servo(base[0], base[1], sz-2, base+2);
break;
case OpReadServo:
read_servo(base[0], base[1], base[2]);
break;
case OpOutText:
out_text(sz, base);
break;
case OpRawWrite:
raw_write(sz, base);
break;
case OpRawRead:
raw_read(base[0]);
break;
default:
goto unknown_op;
}
ptr += sz;
}
}
