mirror of
https://github.com/strawberrymusicplayer/strawberry
synced 2024-12-28 09:10:58 +01:00
257 lines
8.3 KiB
C++
257 lines
8.3 KiB
C++
/*
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Copyright (C) 2011 by Mike McQuaid
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in
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all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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THE SOFTWARE.
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*/
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#include "qsearchfield.h"
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#include <QLineEdit>
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#include <QVBoxLayout>
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#include <QToolButton>
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#include <QStyle>
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#include <QApplication>
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#include <QDesktopWidget>
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#include <QDir>
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#include <QDebug>
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class QSearchFieldPrivate : public QObject
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{
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public:
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QSearchFieldPrivate(QSearchField *searchField, QLineEdit *lineEdit, QToolButton *clearButton, QToolButton *searchButton)
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: QObject(searchField), lineEdit(lineEdit), clearButton(clearButton), searchButton(searchButton) {}
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int lineEditFrameWidth() const {
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return lineEdit->style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
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}
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int clearButtonPaddedWidth() const {
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return clearButton->width() + lineEditFrameWidth() * 2;
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}
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int clearButtonPaddedHeight() const {
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return clearButton->height() + lineEditFrameWidth() * 2;
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}
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int searchButtonPaddedWidth() const {
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return searchButton->width() + lineEditFrameWidth() * 2;
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}
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int searchButtonPaddedHeight() const {
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return searchButton->height() + lineEditFrameWidth() * 2;
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}
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QPointer<QLineEdit> lineEdit;
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QPointer<QToolButton> clearButton;
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QPointer<QToolButton> searchButton;
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QPointer<QMenu> searchMenu;
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};
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QSearchField::QSearchField(QWidget *parent) : QWidget(parent)
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{
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QLineEdit *lineEdit = new QLineEdit(this);
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connect(lineEdit, SIGNAL(textChanged(QString)),
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this, SIGNAL(textChanged(QString)));
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connect(lineEdit, SIGNAL(editingFinished()),
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this, SIGNAL(editingFinished()));
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connect(lineEdit, SIGNAL(returnPressed()),
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this, SIGNAL(returnPressed()));
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connect(lineEdit, SIGNAL(textChanged(QString)),
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this, SLOT(setText(QString)));
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int iconsize = style()->pixelMetric(QStyle::PM_SmallIconSize);
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QToolButton *clearButton = new QToolButton(this);
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QIcon clearIcon = QIcon::fromTheme(QLatin1String("edit-clear"),
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QIcon(QLatin1String(":/Qocoa/qsearchfield_nonmac_clear.png")));
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clearButton->setIcon(clearIcon);
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clearButton->setIconSize(QSize(iconsize, iconsize));
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clearButton->setFixedSize(QSize(iconsize, iconsize));
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clearButton->setStyleSheet("border: none;");
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clearButton->hide();
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connect(clearButton, SIGNAL(clicked()), this, SLOT(clear()));
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QToolButton *searchButton = new QToolButton(this);
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QIcon searchIcon = QIcon(QLatin1String(":/Qocoa/qsearchfield_nonmac_magnifier.png"));
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searchButton->setIcon(searchIcon);
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searchButton->setIconSize(QSize(iconsize, iconsize));
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searchButton->setFixedSize(QSize(iconsize, iconsize));
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searchButton->setStyleSheet("border: none;");
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searchButton->setPopupMode(QToolButton::InstantPopup);
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searchButton->setEnabled(false);
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connect(searchButton, SIGNAL(clicked()), this, SLOT(popupMenu()));
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pimpl = new QSearchFieldPrivate(this, lineEdit, clearButton, searchButton);
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lineEdit->setStyleSheet(QString("QLineEdit { padding-left: %1px; padding-right: %2px; } ")
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.arg(pimpl->searchButtonPaddedWidth())
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.arg(pimpl->clearButtonPaddedWidth()));
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const int width = qMax(lineEdit->minimumSizeHint().width(), pimpl->clearButtonPaddedWidth() + pimpl->searchButtonPaddedWidth());
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const int height = qMax(lineEdit->minimumSizeHint().height(),
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qMax(pimpl->clearButtonPaddedHeight(),
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pimpl->searchButtonPaddedHeight()));
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lineEdit->setMinimumSize(width, height);
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QVBoxLayout *layout = new QVBoxLayout(this);
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layout->setMargin(0);
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layout->addWidget(lineEdit);
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}
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void QSearchField::setMenu(QMenu *menu)
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{
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Q_ASSERT(pimpl);
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if (!pimpl)
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return;
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pimpl->searchMenu = menu;
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QIcon searchIcon = menu ? QIcon(QLatin1String(":/Qocoa/qsearchfield_nonmac_magnifier_menu.png"))
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: QIcon(QLatin1String(":/Qocoa/qsearchfield_nonmac_magnifier.png"));
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pimpl->searchButton->setIcon(searchIcon);
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pimpl->searchButton->setEnabled(isEnabled() && menu);
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}
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void QSearchField::popupMenu()
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{
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Q_ASSERT(pimpl);
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if (!pimpl)
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return;
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if (pimpl->searchMenu) {
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const QRect screenRect = qApp->desktop()->availableGeometry(pimpl->searchButton);
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const QSize sizeHint = pimpl->searchMenu->sizeHint();
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const QRect rect = pimpl->searchButton->rect();
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const int x = pimpl->searchButton->isRightToLeft()
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? rect.right() - sizeHint.width()
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: rect.left();
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const int y = pimpl->searchButton->mapToGlobal(QPoint(0, rect.bottom())).y() + sizeHint.height() <= screenRect.height()
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? rect.bottom()
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: rect.top() - sizeHint.height();
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QPoint point = pimpl->searchButton->mapToGlobal(QPoint(x, y));
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point.rx() = qMax(screenRect.left(), qMin(point.x(), screenRect.right() - sizeHint.width()));
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point.ry() += 1;
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pimpl->searchMenu->popup(point);
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}
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}
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void QSearchField::changeEvent(QEvent* event)
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{
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if (event->type() == QEvent::EnabledChange) {
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Q_ASSERT(pimpl);
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if (!pimpl)
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return;
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const bool enabled = isEnabled();
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pimpl->searchButton->setEnabled(enabled && pimpl->searchMenu);
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pimpl->lineEdit->setEnabled(enabled);
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pimpl->clearButton->setEnabled(enabled);
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}
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QWidget::changeEvent(event);
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}
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void QSearchField::setText(const QString &text)
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{
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Q_ASSERT(pimpl && pimpl->clearButton && pimpl->lineEdit);
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if (!(pimpl && pimpl->clearButton && pimpl->lineEdit))
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return;
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pimpl->clearButton->setVisible(!text.isEmpty());
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if (text != this->text())
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pimpl->lineEdit->setText(text);
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}
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void QSearchField::setPlaceholderText(const QString &text)
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{
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (!(pimpl && pimpl->lineEdit))
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return;
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#if QT_VERSION >= 0x040700
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pimpl->lineEdit->setPlaceholderText(text);
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#endif
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}
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void QSearchField::clear()
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{
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (!(pimpl && pimpl->lineEdit))
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return;
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pimpl->lineEdit->clear();
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}
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void QSearchField::selectAll()
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{
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (!(pimpl && pimpl->lineEdit))
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return;
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pimpl->lineEdit->selectAll();
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}
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QString QSearchField::text() const
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{
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (!(pimpl && pimpl->lineEdit))
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return QString();
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return pimpl->lineEdit->text();
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}
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QString QSearchField::placeholderText() const {
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (!(pimpl && pimpl->lineEdit))
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return QString();
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#if QT_VERSION >= 0x040700
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return pimpl->lineEdit->placeholderText();
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#else
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return QString();
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#endif
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}
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void QSearchField::setFocus(Qt::FocusReason reason)
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{
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Q_ASSERT(pimpl && pimpl->lineEdit);
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if (pimpl && pimpl->lineEdit)
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pimpl->lineEdit->setFocus(reason);
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}
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void QSearchField::setFocus()
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{
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setFocus(Qt::OtherFocusReason);
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}
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void QSearchField::resizeEvent(QResizeEvent *resizeEvent)
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{
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Q_ASSERT(pimpl && pimpl->clearButton && pimpl->lineEdit);
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if (!(pimpl && pimpl->clearButton && pimpl->lineEdit))
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return;
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QWidget::resizeEvent(resizeEvent);
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const int x = width() - pimpl->clearButtonPaddedWidth();
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const int y = (height() - pimpl->clearButton->height())/2;
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pimpl->clearButton->move(x, y);
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pimpl->searchButton->move(pimpl->lineEditFrameWidth() * 2,
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(height() - pimpl->searchButton->height())/2);
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}
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