Files correlati : cg0.exe cg0700a.msk cg0700b.msk cg3.exe cg4.exe Bug : Commento: Merge 1.0 libraries
243 lines
7.7 KiB
C++
243 lines
7.7 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the demonstration applications of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "searchlineedit.h"
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#include <QtGui/QPainter>
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#include <QtGui/QMouseEvent>
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#include <QtGui/QMenu>
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#include <QtGui/QStyle>
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#include <QtGui/QStyleOptionFrameV2>
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ClearButton::ClearButton(QWidget *parent)
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: QAbstractButton(parent)
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{
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#ifndef QT_NO_CURSOR
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setCursor(Qt::ArrowCursor);
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#endif // QT_NO_CURSOR
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setToolTip(tr("Clear"));
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setVisible(false);
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setFocusPolicy(Qt::NoFocus);
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}
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void ClearButton::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainter painter(this);
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int height = this->height();
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painter.setRenderHint(QPainter::Antialiasing, true);
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QColor color = palette().color(QPalette::Mid);
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painter.setBrush(isDown()
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? palette().color(QPalette::Dark)
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: palette().color(QPalette::Mid));
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painter.setPen(painter.brush().color());
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int size = width();
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int offset = size / 5;
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int radius = size - offset * 2;
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painter.drawEllipse(offset, offset, radius, radius);
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painter.setPen(palette().color(QPalette::Base));
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int border = offset * 2;
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painter.drawLine(border, border, width() - border, height - border);
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painter.drawLine(border, height - border, width() - border, border);
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}
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void ClearButton::textChanged(const QString &text)
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{
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setVisible(!text.isEmpty());
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}
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/*
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Search icon on the left hand side of the search widget
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When a menu is set a down arrow appears
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*/
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class SearchButton : public QAbstractButton {
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public:
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SearchButton(QWidget *parent = 0);
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void paintEvent(QPaintEvent *event);
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QMenu *m_menu;
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protected:
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void mousePressEvent(QMouseEvent *event);
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};
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SearchButton::SearchButton(QWidget *parent)
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: QAbstractButton(parent),
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m_menu(0)
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{
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setObjectName(QLatin1String("SearchButton"));
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#ifndef QT_NO_CURSOR
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setCursor(Qt::ArrowCursor);
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#endif //QT_NO_CURSOR
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setFocusPolicy(Qt::NoFocus);
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}
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void SearchButton::mousePressEvent(QMouseEvent *event)
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{
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if (m_menu && event->button() == Qt::LeftButton) {
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QWidget *p = parentWidget();
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if (p) {
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QPoint r = p->mapToGlobal(QPoint(0, p->height()));
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m_menu->exec(QPoint(r.x() + height() / 2, r.y()));
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}
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event->accept();
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}
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QAbstractButton::mousePressEvent(event);
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}
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void SearchButton::paintEvent(QPaintEvent *event)
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{
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Q_UNUSED(event);
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QPainterPath myPath;
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int radius = (height() / 5) * 2;
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QRect circle(height() / 3 - 1, height() / 4, radius, radius);
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myPath.addEllipse(circle);
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myPath.arcMoveTo(circle, 300);
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QPointF c = myPath.currentPosition();
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int diff = height() / 7;
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myPath.lineTo(qMin(width() - 2, (int)c.x() + diff), c.y() + diff);
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.setPen(QPen(Qt::darkGray, 2));
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painter.drawPath(myPath);
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if (m_menu) {
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QPainterPath dropPath;
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dropPath.arcMoveTo(circle, 320);
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QPointF c = dropPath.currentPosition();
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c = QPointF(c.x() + 3.5, c.y() + 0.5);
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dropPath.moveTo(c);
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dropPath.lineTo(c.x() + 4, c.y());
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dropPath.lineTo(c.x() + 2, c.y() + 2);
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dropPath.closeSubpath();
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painter.setPen(Qt::darkGray);
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painter.setBrush(Qt::darkGray);
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painter.setRenderHint(QPainter::Antialiasing, false);
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painter.drawPath(dropPath);
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}
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painter.end();
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}
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/*
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SearchLineEdit is an enhanced QLineEdit
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- A Search icon on the left with optional menu
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- When there is no text and doesn't have focus an "inactive text" is displayed
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- When there is text a clear button is displayed on the right hand side
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*/
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SearchLineEdit::SearchLineEdit(QWidget *parent) : ExLineEdit(parent),
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m_searchButton(new SearchButton(this))
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{
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connect(lineEdit(), SIGNAL(textChanged(QString)),
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this, SIGNAL(textChanged(QString)));
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setLeftWidget(m_searchButton);
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m_inactiveText = tr("Search");
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QSizePolicy policy = sizePolicy();
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setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy());
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}
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void SearchLineEdit::paintEvent(QPaintEvent *event)
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{
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if (lineEdit()->text().isEmpty() && !hasFocus() && !m_inactiveText.isEmpty()) {
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ExLineEdit::paintEvent(event);
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QStyleOptionFrameV2 panel;
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initStyleOption(&panel);
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QRect r = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this);
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QFontMetrics fm = fontMetrics();
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int horizontalMargin = lineEdit()->x();
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QRect lineRect(horizontalMargin + r.x(), r.y() + (r.height() - fm.height() + 1) / 2,
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r.width() - 2 * horizontalMargin, fm.height());
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QPainter painter(this);
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painter.setPen(palette().brush(QPalette::Disabled, QPalette::Text).color());
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painter.drawText(lineRect, Qt::AlignLeft|Qt::AlignVCenter, m_inactiveText);
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} else {
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ExLineEdit::paintEvent(event);
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}
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}
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void SearchLineEdit::resizeEvent(QResizeEvent *event)
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{
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updateGeometries();
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ExLineEdit::resizeEvent(event);
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}
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void SearchLineEdit::updateGeometries()
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{
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int menuHeight = height();
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int menuWidth = menuHeight + 1;
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if (!m_searchButton->m_menu)
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menuWidth = (menuHeight / 5) * 4;
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m_searchButton->resize(QSize(menuWidth, menuHeight));
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}
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QString SearchLineEdit::inactiveText() const
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{
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return m_inactiveText;
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}
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void SearchLineEdit::setInactiveText(const QString &text)
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{
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m_inactiveText = text;
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}
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void SearchLineEdit::setMenu(QMenu *menu)
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{
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if (m_searchButton->m_menu)
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m_searchButton->m_menu->deleteLater();
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m_searchButton->m_menu = menu;
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updateGeometries();
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}
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QMenu *SearchLineEdit::menu() const
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{
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if (!m_searchButton->m_menu) {
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m_searchButton->m_menu = new QMenu(m_searchButton);
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if (isVisible())
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(const_cast<SearchLineEdit*>(this))->updateGeometries();
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}
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return m_searchButton->m_menu;
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}
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