moved to shstk

libs/widgets/matrixedit.cpp

@@ -0,0 +1,164 @@
+#include "matrixedit.h"
+#include "ui_matrixedit.h"
+#include <QBoxLayout>
+
+
+MatrixEdit::MatrixEdit(QWidget * parent): QWidget(parent) {
+	ui = new Ui::MatrixEdit();
+	ui->setupUi(this);
+#if QT_VERSION >= QT_VERSION_CHECK(5, 2, 0)
+	ui->table->setSizeAdjustPolicy(QAbstractScrollArea::AdjustToContents);
+#endif
+	connect(ui->table, SIGNAL(cellChanged(int,int)), this, SIGNAL(changed()));
+	ro = false;
+}
+
+
+MatrixEdit::~MatrixEdit() {
+	delete ui;
+}
+
+
+bool MatrixEdit::isReadOnly() const {
+	return ro;
+}
+
+
+void MatrixEdit::setReadOnly(bool yes) {
+	ro = yes;
+	/// TODO
+}
+
+
+void MatrixEdit::setVectorMode(bool yes) {
+	if (yes)
+		ui->spinCols->setValue(1);
+	ui->labelCols->setHidden(yes);
+	ui->spinCols->setHidden(yes);
+	ui->buttonIdentity->setHidden(yes);
+}
+
+
+void MatrixEdit::clear(bool ident) {
+	int cc = ui->table->columnCount();
+	for (int r = 0; r < ui->table->rowCount(); ++r) {
+		for (int c = 0; c < cc; ++c) {
+			QTableWidgetItem * i = ui->table->item(r, c);
+			if (!i) {
+				i = new QTableWidgetItem();
+				ui->table->setItem(r, c, i);
+			}
+			i->setText((ident && (r == c)) ? "1" : "0");
+		}
+	}
+
+}
+
+
+void MatrixEdit::changeEvent(QEvent * e) {
+	QWidget::changeEvent(e);
+	switch (e->type()) {
+		case QEvent::LanguageChange:
+			ui->retranslateUi(this);
+			break;
+		default:
+			break;
+	}
+}
+
+
+QVector<double> MatrixEdit::vector() const {
+	QVector<double> ret;
+	if (ui->table->columnCount() < 1) return ret;
+	ret.resize(ui->table->rowCount());
+	ret.fill(0.);
+	for (int r = 0; r < ret.size(); ++r) {
+		QTableWidgetItem * i = ui->table->item(r, 0);
+		if (!i) continue;
+		ret[r] = i->text().toDouble();
+	}
+	return ret;
+}
+
+
+QVector<QVector<double> > MatrixEdit::matrix() const {
+	QVector<QVector<double> > ret;
+	if (ui->table->columnCount() < 1 || ui->table->rowCount() < 1) return ret;
+	int cc = ui->table->columnCount();
+	ret.resize(ui->table->rowCount());
+	for (int r = 0; r < ret.size(); ++r) {
+		ret[r].resize(cc);
+		ret[r].fill(0.);
+		for (int c = 0; c < cc; ++c) {
+			QTableWidgetItem * i = ui->table->item(r, c);
+			if (!i) continue;
+			ret[r][c] = i->text().toDouble();
+		}
+	}
+	return ret;
+}
+
+
+void MatrixEdit::setVector(const QVector<double> & v) {
+	clear();
+	if (v.isEmpty()) return;
+	blockSignals(true);
+	ui->spinRows->setValue(v.size());
+	setVectorMode(true);
+	for (int r = 0; r < v.size(); ++r) {
+		QTableWidgetItem * i = ui->table->item(r, 0);
+		if (!i) {
+			i = new QTableWidgetItem();
+			ui->table->setItem(r, 0, i);
+		}
+		i->setText(QString::number(v[r]));
+	}
+	blockSignals(false);
+	emit changed();
+}
+
+
+void MatrixEdit::setMatrix(const QVector<QVector<double> > & v) {
+	clear();
+	if (v.isEmpty()) return;
+	if (v[0].isEmpty()) return;
+	blockSignals(true);
+	int cc = v[0].size();
+	ui->spinRows->setValue(v.size());
+	ui->spinCols->setValue(cc);
+	setVectorMode(false);
+	for (int r = 0; r < v.size(); ++r) {
+		for (int c = 0; c < v[r].size(); ++c) {
+			QTableWidgetItem * i = ui->table->item(r, c);
+			if (!i) {
+				i = new QTableWidgetItem();
+				ui->table->setItem(r, c, i);
+			}
+			i->setText(QString::number(v[r][c]));
+		}
+	}
+	blockSignals(false);
+	emit changed();
+}
+
+
+void MatrixEdit::on_spinRows_valueChanged(int cnt) {
+	ui->table->setRowCount(cnt);
+	emit changed();
+}
+
+
+void MatrixEdit::on_spinCols_valueChanged(int cnt) {
+	ui->table->setColumnCount(cnt);
+	emit changed();
+}
+
+
+void MatrixEdit::on_buttonNull_clicked() {
+	clear();
+}
+
+
+void MatrixEdit::on_buttonIdentity_clicked() {
+	clear(true);
+}