/src/libtomahawk/playlist/topbar/searchbutton.cpp
http://github.com/tomahawk-player/tomahawk · C++ · 116 lines · 81 code · 14 blank · 21 comment · 5 complexity · 2bb0d30baf8dd032ae8503c5802f8fbb MD5 · raw file
- /*
- * Copyright 2009 Benjamin C. Meyer <ben@meyerhome.net>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor,
- * Boston, MA 02110-1301 USA
- */
- #include "searchbutton.h"
- #include <qcompleter.h>
- #include <qevent.h>
- #include <qlineedit.h>
- #include <qpainter.h>
- SearchButton::SearchButton(QWidget *parent)
- : QAbstractButton(parent)
- , m_showMenuTriangle(false)
- {
- setFocusPolicy(Qt::NoFocus);
- setCursor(Qt::ArrowCursor);
- setMinimumSize(sizeHint());
- }
- QSize SearchButton::sizeHint() const
- {
- if (!m_cache.isNull())
- return m_cache.size();
- if (m_showMenuTriangle)
- return QSize(16, 16);
- return QSize(12, 16);
- }
- QImage SearchButton::generateSearchImage(bool dropDown)
- {
- QImage image(dropDown ? 16 : 12, 16, QImage::Format_ARGB32);
- image.fill(qRgba(0, 0, 0, 0));
- QPainterPath path;
- // draw magnify glass circle
- int radius = image.height() / 2;
- QRect circle(1, 1, radius, radius);
- path.addEllipse(circle);
- // draw handle
- path.arcMoveTo(circle, 300);
- QPointF currentPosition = path.currentPosition();
- path.moveTo(currentPosition.x() + 1, currentPosition.y() + 1);
- if (dropDown)
- path.lineTo(image.width()-6, image.height()-4);
- else
- path.lineTo(image.width()-2, image.height()-4);
- QPainter painter(&image);
- painter.setRenderHint(QPainter::Antialiasing, true);
- painter.setPen(QPen(Qt::darkGray, 2));
- painter.drawPath(path);
- if (dropDown) {
- // draw the dropdown triangle
- QPainterPath dropPath;
- dropPath.arcMoveTo(circle, 320);
- QPointF currentPosition = dropPath.currentPosition();
- currentPosition = QPointF(currentPosition.x() + 2, currentPosition.y() + 0.5);
- dropPath.moveTo(currentPosition);
- dropPath.lineTo(currentPosition.x() + 4, currentPosition.y());
- dropPath.lineTo(currentPosition.x() + 2, currentPosition.y() + 2);
- dropPath.closeSubpath();
- painter.setPen(Qt::darkGray);
- painter.setBrush(Qt::darkGray);
- painter.setRenderHint(QPainter::Antialiasing, false);
- painter.drawPath(dropPath);
- }
- painter.end();
- return image;
- }
- void SearchButton::setImage(const QImage &image)
- {
- m_cache = image;
- setMinimumSize(sizeHint());
- update();
- }
- void SearchButton::setShowMenuTriangle(bool show)
- {
- m_showMenuTriangle = show;
- setMinimumSize(sizeHint());
- }
- bool SearchButton::showMenuTriangle() const
- {
- return m_showMenuTriangle;
- }
- void SearchButton::paintEvent(QPaintEvent *event)
- {
- Q_UNUSED(event);
- if (m_cache.isNull())
- m_cache = generateSearchImage(m_showMenuTriangle);
- QPainter painter(this);
- painter.setRenderHint(QPainter::SmoothPixmapTransform);
- painter.drawImage(QPoint(0, 0), m_cache);
- }