git-svn-id: svn://db.shs.com.ru/libs@334 a8b55f48-bf90-11e4-a774-851b48703e85
This commit is contained in:
303
qad/widgets/evalspinbox.cpp
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303
qad/widgets/evalspinbox.cpp
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#include "evalspinbox.h"
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#include <QLineEdit>
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#include <QLabel>
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#include <QDebug>
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#include <QRegExp>
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#include <QPainter>
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#include <QStyle>
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#include <QStyleOptionSpinBox>
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#include "qad_types.h"
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EvalSpinBox::EvalSpinBox(QWidget * parent): QAbstractSpinBox(parent) {
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status = new QWidget(lineEdit());
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cw = new QWidget(lineEdit());
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label = new QLabel(lineEdit());
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// label->hide();
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clear_im.load(":/icons/edit-clear-locationbar-rtl.png");
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icon_ok.load(":/icons/dialog-ok-apply.png");
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icon_fail.load(":/icons/dialog-warning.png");
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icon_calc.load(":/icons/tools-wizard.png");
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icon = icon_ok;
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status->setCursor(Qt::ArrowCursor);
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status->setToolTip("OK -> 0");
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status->hide();
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cw->setCursor(Qt::ArrowCursor);
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cw->setToolTip(tr("Clear"));
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cw->hide();
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cw_visible = false;
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//lineEdit()->setStyleSheet("color: darkgreen;");
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//lineEdit()->setText(eval.expression() + " -> " + QString::number(value(), 'G', 10));
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cw->installEventFilter(this);
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status->installEventFilter(this);
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connect(lineEdit(), SIGNAL(textChanged(QString)), this, SLOT(textChanged_(QString)));
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connect(this, SIGNAL(editingFinished()), this, SLOT(setExpression_()));
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label->setText("0");
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//connect(cw, SIGNAL(mouseReleaseEvent(QMouseEvent * )), this, SLOT(clearMouseRelease(QMouseEvent * )));
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}
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EvalSpinBox::~EvalSpinBox() {
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delete cw;
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delete status;
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delete label;
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}
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bool EvalSpinBox::eventFilter(QObject * o, QEvent * e) {
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switch (e->type()) {
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case QEvent::MouseButtonRelease:
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if (o == cw) clearMouseRelease((QMouseEvent * )e);
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break;
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case QEvent::Paint:
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if (o == status) statusPaintEvent();
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if (o == cw) cwPaintEvent();
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break;
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default : break;
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}
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return QAbstractSpinBox::eventFilter(o, e);
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}
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void EvalSpinBox::resizeIcons() {
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int is = fontHeight();
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int tm = (lineEdit()->height() - is + 1) / 2;
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QStyleOptionFrame so;
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so.initFrom(lineEdit());
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QRect r = style()->subElementRect(QStyle::SE_LineEditContents, &so, lineEdit());
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label->setGeometry(r.x() + 2, r.y() + (r.height() - fontMetrics().height() + 1) / 2, lineEdit()->width() - 2*tm - (is * 1.2) * ((status->isVisible() ? 1 : 0) + (cw->isVisible() ? 1 : 0)), lineEdit()->height() - 2*tm);
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status->setGeometry(lineEdit()->width() - (is + tm) * (cw->isVisible() ? 2 : 1), tm, is, is);
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cw->setGeometry(lineEdit()->width() - (is + tm) * 1, tm, is, is);
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lineEdit()->setTextMargins(0, 0, (is * 1.2) * ((status->isVisible() ? 1 : 0) + (cw->isVisible() ? 1 : 0)), 0);
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}
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void EvalSpinBox::resizeEvent(QResizeEvent * e) {
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QAbstractSpinBox::resizeEvent(e);
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resizeIcons();
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}
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void EvalSpinBox::changeEvent(QEvent * e) {
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if (e->type() == QEvent::LanguageChange) {
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cw->setToolTip(tr("Clear"));
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return;
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}
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QAbstractSpinBox::changeEvent(e);
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}
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void EvalSpinBox::cwPaintEvent() {
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QPainter p(cw);
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p.setRenderHint(QPainter::SmoothPixmapTransform);
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p.drawImage(cw->rect(), clear_im);
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}
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void EvalSpinBox::statusPaintEvent() {
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QPainter p(status);
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p.setRenderHint(QPainter::SmoothPixmapTransform);
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p.drawImage(status->rect(), icon);
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}
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void EvalSpinBox::clearMouseRelease(QMouseEvent * e) {
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if (cw->rect().contains(e->pos())) clear();
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}
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void EvalSpinBox::textChanged_(const QString & text) {
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double pv = value();
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QString t = text;
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cw->setVisible(text != dt && cw_visible);
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bool td = false;
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if (t.endsWith('=')) {
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td = true;
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t.chop(1);
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}
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bool ok = eval.check(t);
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if (ok) {
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eval.evaluate();
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if (td) {
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icon = icon_calc;
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status->setToolTip("Enter to calc -> "+QString::number(value(), 'G', 10));
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} else {
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icon = icon_ok;
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status->setToolTip("OK -> "+QString::number(value(), 'G', 10));
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}
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// qDebug() << "value =" << value();
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if (pv != value()) emit valueChanged(value());
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} else {
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icon = icon_fail;
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status->setToolTip(eval.error());
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}
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resizeIcons();
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}
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void EvalSpinBox::setExpression_() {
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bool td = false;
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double pv = value();
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QString t = text();
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if (t.endsWith('=')) {
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td = true;
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t.chop(1);
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}
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if (eval.check(t)) {
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if (eval.expression() == "0") lineEdit()->clear();
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else lineEdit()->setText(eval.expression());
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eval.evaluate();
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if (td) lineEdit()->setText(QString::number(value(), 'G', 10));
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status->setToolTip("OK -> " + QString::number(value(), 'G', 10));
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icon = icon_ok;
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} else {
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icon = icon_fail;
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status->setToolTip(eval.error());
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// qDebug() << eval.expression();
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}
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if (!label->isHidden()) {
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if (eval.expression() != QString::number(value(), 'G', 10) && eval.expression() != QString::number(value(), 'G', 11) && eval.isCorrect())
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label->setText("<html><head/><body><p>" + eval.expression() + " <span style=\"color:#005500;\">-> " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
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else label->setText(eval.expression());
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lineEdit()->blockSignals(true);
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if (!eval.isCorrect()) {
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lineEdit()->setStyleSheet("color: darkred;");
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status->show();
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} else {
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lineEdit()->setStyleSheet("color: black;");
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status->hide();
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}
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// lineEdit()->setText(eval.expression() + " -> " + QString::number(value(), 'G', 10));
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lineEdit()->setText("");
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lineEdit()->blockSignals(false);
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}
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// qDebug() << "value =" << value();
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if (pv != value()) emit valueChanged(value());
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}
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void EvalSpinBox::setExpression(const QString & expr) {
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lineEdit()->setText(expr);
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//if (eval.expression() == "0") lineEdit()->clear();
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cw->setVisible(text() != dt && cw_visible);
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setExpression_();
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}
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void EvalSpinBox::setValue(double val) {
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lineEdit()->setText(QString::number(val));
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//if (val == 0) lineEdit()->clear();
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cw->setVisible(text() != dt && cw_visible);
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setExpression_();
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}
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void EvalSpinBox::stepBy(int steps) {
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QString t = text();
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if (eval.check(t)) {
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t = eval.expression();
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QRegExp re("(\\-?\\d+)");
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int pos = 0;
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if ((pos = re.indexIn(t)) != -1) {
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double v = t.mid(pos, re.matchedLength()).toDouble();
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v += steps;
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t.remove(pos, re.matchedLength());
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t.insert(pos, QString::number(v));
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} else {
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double v = steps;
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t = QString::number(v) + t;
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}
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eval.check(t);
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lineEdit()->setText(eval.expression());
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}
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}
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void EvalSpinBox::clear() {
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lineEdit()->setText(dt);
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setExpression_();
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cw->hide();
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resizeIcons();
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emit cleared();
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}
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double EvalSpinBox::value() const {
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if (eval.isCorrect()) {
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return eval.lastResult().real();
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}
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return 0;
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}
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const QString & EvalSpinBox::expression() const {
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return eval.expression();
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}
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bool EvalSpinBox::isCleared() const {
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return (dt == eval.expression() || (value() == 0 && dt.isEmpty()));
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}
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QSize EvalSpinBox::sizeHint() const {
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QSize s = QAbstractSpinBox::sizeHint();
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s.setWidth(120);
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return s;
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}
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QAbstractSpinBox::StepEnabled EvalSpinBox::stepEnabled() const {
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return StepUpEnabled | StepDownEnabled;
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}
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void EvalSpinBox::focusInEvent(QFocusEvent * event) {
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// qDebug() << "focus_in";
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label->hide();
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status->show();
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lineEdit()->blockSignals(true);
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lineEdit()->setStyleSheet("color: black;");
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if (eval.expression() != "0") lineEdit()->setText(eval.expression());
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lineEdit()->blockSignals(false);
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QAbstractSpinBox::focusInEvent(event);
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resizeIcons();
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}
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void EvalSpinBox::focusOutEvent(QFocusEvent * event) {
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QAbstractSpinBox::focusOutEvent(event);
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// qDebug() << eval.expression() << QString::number(value(), 'G', 10);
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if (eval.expression() != QString::number(value(), 'G', 10) && eval.expression() != QString::number(value(), 'G', 11) && eval.isCorrect())
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label->setText("<html><head/><body><p>" + eval.expression() + " <span style=\"color:#005500;\">-> " + QString::number(value(), 'G', 10) + "</span></p></body></html>");
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else label->setText(eval.expression());
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label->show();
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lineEdit()->blockSignals(true);
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if (!eval.isCorrect()) lineEdit()->setStyleSheet("color: darkred;");
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else status->hide();
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// lineEdit()->setText(eval.expression() + " -> " + QString::number(value(), 'G', 10));
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lineEdit()->clear();
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lineEdit()->blockSignals(false);
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resizeIcons();
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}
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void EvalSpinBox::setDefaultText(const QString & t) {
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// bool def = (!cw->isHidden());
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dt = t;
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// if (def) {
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// lineEdit()->setText(dt);
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// setExpression_();
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// }
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//if (t == eval.expression() || (value() == 0 && t.isEmpty())) clear();
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cw->setVisible((eval.expression() != dt || (dt.isEmpty() && eval.expression() == "0")) && cw_visible);
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resizeIcons();
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}
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void EvalSpinBox::setClearButtonVisible(bool visible) {
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cw_visible = visible;
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cw->setVisible((eval.expression() != dt || (dt.isEmpty() && eval.expression() == "0")) && cw_visible);
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resizeIcons();
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}
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