From 63b34dc6ccd32c9bc7c3d8c0137ff12530238bde Mon Sep 17 00:00:00 2001 From: Andrea Diamantini Date: Thu, 30 Oct 2008 01:50:51 +0100 Subject: reKonq initial commit. Yeah! --- src/searchlineedit.cpp | 233 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 233 insertions(+) create mode 100644 src/searchlineedit.cpp (limited to 'src/searchlineedit.cpp') diff --git a/src/searchlineedit.cpp b/src/searchlineedit.cpp new file mode 100644 index 00000000..97fdf726 --- /dev/null +++ b/src/searchlineedit.cpp @@ -0,0 +1,233 @@ +/**************************************************************************** +** +** Copyright (C) 2008 Nokia Corporation and/or its subsidiary(-ies). +** Contact: Qt Software Information (qt-info@nokia.com) +** +** This file is part of the demonstration applications of the Qt Toolkit. +** +** Commercial Usage +** Licensees holding valid Qt Commercial licenses may use this file in +** accordance with the Qt Commercial License Agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and Nokia. +** +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License versions 2.0 or 3.0 as published by the Free +** Software Foundation and appearing in the file LICENSE.GPL included in +** the packaging of this file. Please review the following information +** to ensure GNU General Public Licensing requirements will be met: +** http://www.fsf.org/licensing/licenses/info/GPLv2.html and +** http://www.gnu.org/copyleft/gpl.html. In addition, as a special +** exception, Nokia gives you certain additional rights. These rights +** are described in the Nokia Qt GPL Exception version 1.3, included in +** the file GPL_EXCEPTION.txt in this package. +** +** Qt for Windows(R) Licensees +** As a special exception, Nokia, as the sole copyright holder for Qt +** Designer, grants users of the Qt/Eclipse Integration plug-in the +** right for the Qt/Eclipse Integration to link to functionality +** provided by Qt Designer and its related libraries. +** +** If you are unsure which license is appropriate for your use, please +** contact the sales department at qt-sales@nokia.com. +** +****************************************************************************/ + +#include "searchlineedit.h" + +#include +#include +#include +#include +#include + +ClearButton::ClearButton(QWidget *parent) + : QAbstractButton(parent) +{ + setCursor(Qt::ArrowCursor); + setToolTip(tr("Clear")); + setVisible(false); + setFocusPolicy(Qt::NoFocus); +} + +void ClearButton::paintEvent(QPaintEvent *event) +{ + Q_UNUSED(event); + QPainter painter(this); + int height = this->height(); + + painter.setRenderHint(QPainter::Antialiasing, true); + QColor color = palette().color(QPalette::Mid); + painter.setBrush(isDown() + ? palette().color(QPalette::Dark) + : palette().color(QPalette::Mid)); + painter.setPen(painter.brush().color()); + int size = width(); + int offset = size / 5; + int radius = size - offset * 2; + painter.drawEllipse(offset, offset, radius, radius); + + painter.setPen(palette().color(QPalette::Base)); + int border = offset * 2; + painter.drawLine(border, border, width() - border, height - border); + painter.drawLine(border, height - border, width() - border, border); +} + +void ClearButton::textChanged(const QString &text) +{ + setVisible(!text.isEmpty()); +} + +/* + Search icon on the left hand side of the search widget + When a menu is set a down arrow appears + */ +class SearchButton : public QAbstractButton { +public: + SearchButton(QWidget *parent = 0); + void paintEvent(QPaintEvent *event); + QMenu *m_menu; + +protected: + void mousePressEvent(QMouseEvent *event); +}; + +SearchButton::SearchButton(QWidget *parent) + : QAbstractButton(parent), + m_menu(0) +{ + setObjectName(QLatin1String("SearchButton")); + setCursor(Qt::ArrowCursor); + setFocusPolicy(Qt::NoFocus); +} + +void SearchButton::mousePressEvent(QMouseEvent *event) +{ + if (m_menu && event->button() == Qt::LeftButton) { + QWidget *p = parentWidget(); + if (p) { + QPoint r = p->mapToGlobal(QPoint(0, p->height())); + m_menu->exec(QPoint(r.x() + height() / 2, r.y())); + } + event->accept(); + } + QAbstractButton::mousePressEvent(event); +} + +void SearchButton::paintEvent(QPaintEvent *event) +{ + Q_UNUSED(event); + QPainterPath myPath; + + int radius = (height() / 5) * 2; + QRect circle(height() / 3 - 1, height() / 4, radius, radius); + myPath.addEllipse(circle); + + myPath.arcMoveTo(circle, 300); + QPointF c = myPath.currentPosition(); + int diff = height() / 7; + myPath.lineTo(qMin(width() - 2, (int)c.x() + diff), c.y() + diff); + + QPainter painter(this); + painter.setRenderHint(QPainter::Antialiasing, true); + painter.setPen(QPen(Qt::darkGray, 2)); + painter.drawPath(myPath); + + if (m_menu) { + QPainterPath dropPath; + dropPath.arcMoveTo(circle, 320); + QPointF c = dropPath.currentPosition(); + c = QPointF(c.x() + 3.5, c.y() + 0.5); + dropPath.moveTo(c); + dropPath.lineTo(c.x() + 4, c.y()); + dropPath.lineTo(c.x() + 2, c.y() + 2); + dropPath.closeSubpath(); + painter.setPen(Qt::darkGray); + painter.setBrush(Qt::darkGray); + painter.setRenderHint(QPainter::Antialiasing, false); + painter.drawPath(dropPath); + } + painter.end(); +} + +/* + SearchLineEdit is an enhanced QLineEdit + - A Search icon on the left with optional menu + - When there is no text and doesn't have focus an "inactive text" is displayed + - When there is text a clear button is displayed on the right hand side + */ +SearchLineEdit::SearchLineEdit(QWidget *parent) : ExLineEdit(parent), + m_searchButton(new SearchButton(this)) +{ + connect(lineEdit(), SIGNAL(textChanged(const QString &)), + this, SIGNAL(textChanged(const QString &))); + setLeftWidget(m_searchButton); + m_inactiveText = tr("Search"); + + QSizePolicy policy = sizePolicy(); + setSizePolicy(QSizePolicy::Preferred, policy.verticalPolicy()); +} + +void SearchLineEdit::paintEvent(QPaintEvent *event) +{ + if (lineEdit()->text().isEmpty() && !hasFocus() && !m_inactiveText.isEmpty()) { + ExLineEdit::paintEvent(event); + QStyleOptionFrameV2 panel; + initStyleOption(&panel); + QRect r = style()->subElementRect(QStyle::SE_LineEditContents, &panel, this); + QFontMetrics fm = fontMetrics(); + int horizontalMargin = lineEdit()->x(); + QRect lineRect(horizontalMargin + r.x(), r.y() + (r.height() - fm.height() + 1) / 2, + r.width() - 2 * horizontalMargin, fm.height()); + QPainter painter(this); + painter.setPen(palette().brush(QPalette::Disabled, QPalette::Text).color()); + painter.drawText(lineRect, Qt::AlignLeft|Qt::AlignVCenter, m_inactiveText); + } else { + ExLineEdit::paintEvent(event); + } +} + +void SearchLineEdit::resizeEvent(QResizeEvent *event) +{ + updateGeometries(); + ExLineEdit::resizeEvent(event); +} + +void SearchLineEdit::updateGeometries() +{ + int menuHeight = height(); + int menuWidth = menuHeight + 1; + if (!m_searchButton->m_menu) + menuWidth = (menuHeight / 5) * 4; + m_searchButton->resize(QSize(menuWidth, menuHeight)); +} + +QString SearchLineEdit::inactiveText() const +{ + return m_inactiveText; +} + +void SearchLineEdit::setInactiveText(const QString &text) +{ + m_inactiveText = text; +} + +void SearchLineEdit::setMenu(QMenu *menu) +{ + if (m_searchButton->m_menu) + m_searchButton->m_menu->deleteLater(); + m_searchButton->m_menu = menu; + updateGeometries(); +} + +QMenu *SearchLineEdit::menu() const +{ + if (!m_searchButton->m_menu) { + m_searchButton->m_menu = new QMenu(m_searchButton); + if (isVisible()) + (const_cast(this))->updateGeometries(); + } + return m_searchButton->m_menu; +} -- cgit v1.2.1