+++ /dev/null
-/****************************************************************************
-**
-** Copyright (C) Qxt Foundation. Some rights reserved.
-**
-** This file is part of the QxtGui module of the Qt eXTension library
-**
-** This library is free software; you can redistribute it and/or modify it
-** under the terms of th Common Public License, version 1.0, as published by
-** IBM.
-**
-** This file is provided "AS IS", without WARRANTIES OR CONDITIONS OF ANY
-** KIND, EITHER EXPRESS OR IMPLIED INCLUDING, WITHOUT LIMITATION, ANY
-** WARRANTIES OR CONDITIONS OF TITLE, NON-INFRINGEMENT, MERCHANTABILITY OR
-** FITNESS FOR A PARTICULAR PURPOSE.
-**
-** You should have received a copy of the CPL along with this file.
-** See the LICENSE file and the cpl1.0.txt file included with the source
-** distribution for more information. If you did not receive a copy of the
-** license, contact the Qxt Foundation.
-**
-** <http://libqxt.sourceforge.net> <foundation@libqxt.org>
-**
-****************************************************************************/
-#include "qxtstars.h"
-
-#include <QStyleOptionSlider>
-#include <QPainterPath>
-#include <QMouseEvent>
-#include <QPainter>
-
-class QxtStarsPrivate : public QxtPrivate<QxtStars>
-{
-public:
- QXT_DECLARE_PUBLIC(QxtStars);
- QxtStarsPrivate();
- int pixelPosToRangeValue(int pos) const;
- inline int pick(const QPoint& pt) const;
- QStyleOptionSlider getStyleOption() const;
- QSize getStarSize() const;
- int snapBackPosition;
- bool readOnly;
- QSize starSize;
- QPainterPath star;
-};
-
-QxtStarsPrivate::QxtStarsPrivate()
- : snapBackPosition(0), readOnly(false)
-{
- star.moveTo(14.285716,-43.352104);
- star.lineTo(38.404536,9.1654726);
- star.lineTo(95.804846,15.875014);
- star.lineTo(53.310787,55.042197);
- star.lineTo(64.667306,111.7065);
- star.lineTo(14.285714,83.395573);
- star.lineTo(-36.095881,111.7065);
- star.lineTo(-24.739359,55.042198);
- star.lineTo(-67.233416,15.875009);
- star.lineTo(-9.8331075,9.1654728);
- star.closeSubpath();
-}
-
-int QxtStarsPrivate::pixelPosToRangeValue(int pos) const
-{
- const QxtStars* p = &qxt_p();
- QStyleOptionSlider opt = getStyleOption();
- QRect gr = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderGroove, p);
- QRect sr = p->style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, p);
- int sliderMin, sliderMax, sliderLength;
-
- gr.setSize(qxt_p().sizeHint());
- if (p->orientation() == Qt::Horizontal)
- {
- sliderLength = sr.width();
- sliderMin = gr.x();
- sliderMax = gr.right() - sliderLength + 1;
- }
- else
- {
- sliderLength = sr.height();
- sliderMin = gr.y();
- sliderMax = gr.bottom() - sliderLength + 1;
- }
- return QStyle::sliderValueFromPosition(p->minimum(), p->maximum(), pos - sliderMin,
- sliderMax - sliderMin, opt.upsideDown);
-}
-
-inline int QxtStarsPrivate::pick(const QPoint& pt) const
-{
- return qxt_p().orientation() == Qt::Horizontal ? pt.x() : pt.y();
-}
-
-// TODO: get rid of this in Qt 4.3
-QStyleOptionSlider QxtStarsPrivate::getStyleOption() const
-{
- const QxtStars* p = &qxt_p();
- QStyleOptionSlider opt;
- opt.initFrom(p);
- opt.subControls = QStyle::SC_None;
- opt.activeSubControls = QStyle::SC_None;
- opt.orientation = p->orientation();
- opt.maximum = p->maximum();
- opt.minimum = p->minimum();
- opt.upsideDown = (p->orientation() == Qt::Horizontal) ?
- (p->invertedAppearance() != (opt.direction == Qt::RightToLeft)) : (!p->invertedAppearance());
- opt.direction = Qt::LeftToRight; // we use the upsideDown option instead
- opt.sliderPosition = p->sliderPosition();
- opt.sliderValue = p->value();
- opt.singleStep = p->singleStep();
- opt.pageStep = p->pageStep();
- if (p->orientation() == Qt::Horizontal)
- opt.state |= QStyle::State_Horizontal;
- return opt;
-}
-
-QSize QxtStarsPrivate::getStarSize() const
-{
- QSize size = starSize;
- if (!size.isValid() || size.isNull())
- {
- const int width = qxt_p().style()->pixelMetric(QStyle::PM_SmallIconSize);
- size = QSize(width, width);
- }
- return size;
-}
-
-/*!
- \class QxtStars QxtStars
- \ingroup QxtGui
- \brief A stars assessment widget.
-
- QxtStars is an optionally interactive stars assessment widget.
-
- By default, orientation is \b Qt::Horizonal and range is from \b 0 to \b 5.
-
- The stars are rendered accoring to palette with the following color roles:
- <table>
- <tr><td><b>ColorRole</b></td><td><b>Element</b></td></tr>
- <tr><td>QPalette::Text</td><td>outlines</td></tr>
- <tr><td>QPalette::Base</td><td>unselected stars</td></tr>
- <tr><td>QPalette::Highlight</td><td>selected stars</td></tr>
- </table>
-
- \image html qxtstars.png "QxtStars in action."
- */
-
-/*!
- \fn QxtStars::valueChanged(int value)
-
- This signal is emitted whenever the value has been changed.
- */
-
-/*!
- Constructs a new QxtStars with \a parent.
- */
-QxtStars::QxtStars(QWidget* parent) : QAbstractSlider(parent)
-{
- QXT_INIT_PRIVATE(QxtStars);
- setOrientation(Qt::Horizontal);
- setFocusPolicy(Qt::FocusPolicy(style()->styleHint(QStyle::SH_Button_FocusPolicy)));
- setSizePolicy(QSizePolicy::Fixed, QSizePolicy::Fixed);
- setRange(0, 5);
-}
-
-/*!
- Destructs the stars.
- */
-QxtStars::~QxtStars()
-{}
-
-/*!
- \property QxtStars::readOnly
- \brief This property holds whether stars are adjustable
-
- In read-only mode, the user is not able to change the value.
- The default value is \b false.
- */
-bool QxtStars::isReadOnly() const
-{
- return qxt_d().readOnly;
-}
-
-void QxtStars::setReadOnly(bool readOnly)
-{
- if (qxt_d().readOnly != readOnly)
- {
- qxt_d().readOnly = readOnly;
- if (readOnly)
- setFocusPolicy(Qt::NoFocus);
- else
- setFocusPolicy(Qt::FocusPolicy(style()->styleHint(QStyle::SH_Button_FocusPolicy)));
- }
-}
-
-/*!
- \property QxtStars::starSize
- \brief This property holds the size of star icons
-
- The default value is \b QStyle::PM_SmallIconSize.
- */
-QSize QxtStars::starSize() const
-{
- return qxt_d().starSize;
-}
-
-void QxtStars::setStarSize(const QSize& size)
-{
- if (qxt_d().starSize != size)
- {
- qxt_d().starSize = size;
- updateGeometry();
- update();
- }
-}
-
-QSize QxtStars::sizeHint() const
-{
- return minimumSizeHint();
-}
-
-QSize QxtStars::minimumSizeHint() const
-{
- QSize size = qxt_d().getStarSize();
- size.rwidth() *= maximum() - minimum();
- if (orientation() == Qt::Vertical)
- size.transpose();
- return size;
-}
-
-void QxtStars::paintEvent(QPaintEvent* event)
-{
- QAbstractSlider::paintEvent(event);
-
- QPainter painter(this);
- painter.save();
- painter.setPen(palette().color(QPalette::Text));
- painter.setRenderHint(QPainter::Antialiasing);
-
- const bool invert = invertedAppearance();
- const QSize size = qxt_d().getStarSize();
- const QRectF star = qxt_d().star.boundingRect();
- painter.scale(size.width() / star.width(), size.height() / star.height());
- const int count = maximum() - minimum();
- if (orientation() == Qt::Horizontal)
- {
- painter.translate(-star.x(), -star.y());
- if (invert != isRightToLeft())
- painter.translate((count - 1) * star.width(), 0);
- }
- else
- {
- painter.translate(-star.x(), -star.y());
- if (!invert)
- painter.translate(0, (count - 1) * star.height());
- }
- for (int i = 0; i < count; ++i)
- {
- if (value() > minimum() + i)
- painter.setBrush(palette().highlight());
- else
- painter.setBrush(palette().base());
- painter.drawPath(qxt_d().star);
-
- if (orientation() == Qt::Horizontal)
- painter.translate(invert != isRightToLeft() ? -star.width() : star.width(), 0);
- else
- painter.translate(0, invert ? star.height() : -star.height());
- }
-
- painter.restore();
- if (hasFocus())
- {
- QStyleOptionFocusRect opt;
- opt.initFrom(this);
- opt.rect.setSize(sizeHint());
- style()->drawPrimitive(QStyle::PE_FrameFocusRect, &opt, &painter, this);
- }
-}
-
-void QxtStars::keyPressEvent(QKeyEvent* event)
-{
- if (qxt_d().readOnly)
- {
- event->ignore();
- return;
- }
- QAbstractSlider::keyPressEvent(event);
-}
-
-void QxtStars::mousePressEvent(QMouseEvent* event)
-{
- if (qxt_d().readOnly)
- {
- event->ignore();
- return;
- }
- QAbstractSlider::mousePressEvent(event);
-
- if (maximum() == minimum() || (event->buttons() ^ event->button()))
- {
- event->ignore();
- return;
- }
-
- event->accept();
- QStyleOptionSlider opt = qxt_d().getStyleOption();
- const QRect sliderRect = style()->subControlRect(QStyle::CC_Slider, &opt, QStyle::SC_SliderHandle, this);
- const QPoint center = sliderRect.center() - sliderRect.topLeft();
- const int pos = qxt_d().pixelPosToRangeValue(qxt_d().pick(event->pos() - center));
- setSliderPosition(pos);
- triggerAction(SliderMove);
- setRepeatAction(SliderNoAction);
- qxt_d().snapBackPosition = pos;
- update();
-}
-
-void QxtStars::mouseMoveEvent(QMouseEvent* event)
-{
- if (qxt_d().readOnly)
- {
- event->ignore();
- return;
- }
- QAbstractSlider::mouseMoveEvent(event);
-
- event->accept();
- int newPosition = qxt_d().pixelPosToRangeValue(qxt_d().pick(event->pos()));
- QStyleOptionSlider opt = qxt_d().getStyleOption();
- int m = style()->pixelMetric(QStyle::PM_MaximumDragDistance, &opt, this);
- if (m >= 0)
- {
- QRect r = rect();
- r.adjust(-m, -m, m, m);
- if (!r.contains(event->pos()))
- newPosition = qxt_d().snapBackPosition;
- }
- setSliderPosition(newPosition);
-}
-
-void QxtStars::mouseReleaseEvent(QMouseEvent* event)
-{
- if (qxt_d().readOnly)
- {
- event->ignore();
- return;
- }
- QAbstractSlider::mouseReleaseEvent(event);
-
- if (event->buttons())
- {
- event->ignore();
- return;
- }
-
- event->accept();
- setRepeatAction(SliderNoAction);
-}
projects / quassel.git / blobdiff