void SciDoc::moveUp() {
if ( int_->curEdit_ == NULL ) return;
if ( hasSelectedText() ) {
int line1, line2, col1, col2;
getSelection(line1, col1, line2, col2);
if ( line1 == 0 )
return;
int realLine2 = line2;
if ( col2 == 0 )
--line2;
int_->curEdit_->beginUndoAction();
for (int line = line1; line <= line2; ++line) {
int_->curEdit_->setCursorPosition(line, 0);
swapLines();
}
setSelection(line1 - 1, col1, realLine2 - 1, col2);
int_->curEdit_->endUndoAction();
}
else {
int line, col;
int_->curEdit_->getCursorPosition(&line, &col);
if ( line > 0 ) {
swapLines();
int_->curEdit_->setCursorPosition(line - 1, col);
}
}
}
void SciDoc::moveDown() {
if ( int_->curEdit_ == NULL ) return;
if ( hasSelectedText() ) {
int line1, line2, col1, col2;
getSelection(line1, col1, line2, col2);
int realLine2 = line2;
if ( col2 == 0 )
--line2;
if ( line2 == lineCount() - 1 )
return;
int_->curEdit_->beginUndoAction();
for (int line = line2 + 1; line >= line1 + 1; --line) {
int_->curEdit_->setCursorPosition(line, 0);
swapLines();
}
setSelection(line1 + 1, col1, realLine2 + 1, col2);
int_->curEdit_->endUndoAction();
}
else {
int line, col;
int_->curEdit_->getCursorPosition(&line, &col);
if ( line < lineCount() - 1 ) {
int_->curEdit_->setCursorPosition(line + 1, 0);
swapLines();
int_->curEdit_->setCursorPosition(line + 1, col);
}
}
}
double getDeterminant(pmatrix mx){
if (mx == NULL || mx->rowCount != mx->colCount || mx->size == 0) return NULL;
pmatrix res = mxInitMx(mx);
for (uint i = 0; i < res->rowCount; ++i)
for (uint j = 0; j < res->colCount; ++j)
res->cells[i][j] = mx->cells[i][j];
if (res->size == 1) return res->cells[0][0];
double det = 1.0; int swapCount = 0;
for (uint i = 0; i < res->rowCount; ++i) {
if (res->cells[i][i] == 0.0) {
for (uint j = i + 1; j < res->rowCount; ++j) {
if (res->cells[j][i] != 0.0) {
swapLines(res, i, j);
++swapCount;
}
}
if (res->cells[i][i] == 0.0) return 0.0;
}
double divisor = res->cells[i][i];
for (uint j = 0; j < res->colCount; ++j)
res->cells[i][j] /= divisor;
det *= divisor;
for (uint j = i + 1; j < res->rowCount; ++j) {
double mult = res->cells[j][i];
for (uint k = 0; k < res->colCount; ++k)
res->cells[j][k] -= res->cells[i][k] * mult;
}
}
return det * pow(-1.0, swapCount);
}
void gauss(int n, ll p) { // nx(n+1)-Matrix, Körper F_p.
for (int line = 0; line < n; line++) {
int swappee = line;
while (mat[swappee][line] == 0) swappee++;
swapLines(n, line, swappee);
normalLine(n, line, p);
takeAll(n, line, p);
}}
