mirror of
https://invent.kde.org/system/dolphin
synced 2024-11-05 18:47:12 +00:00
Use the same codebase for rating drawing as in KRatingWidget and playground/nepomuk.
For KDE 4.1 we will export this in kdelibs/nepomuk CCMAIL: peter.penz@gmx.at CCMAIL: ereslibre@kde.org svn path=/trunk/KDE/kdebase/apps/; revision=748547
This commit is contained in:
Sebastian Trueg
parent
e983e0e38e
commit
737b74aa29
4 changed files with 441 additions and 75 deletions
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@ -22,6 +22,7 @@ set(dolphinprivate_LIB_SRCS
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dolphinsortfilterproxymodel.cpp
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renamedialog.cpp
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dolphinview.cpp
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ratingpainter.cpp
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dolphindropcontroller.cpp
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)
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@ -19,7 +19,7 @@
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*/
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#include "dolphincategorydrawer.h"
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#include "ratingpainter.h"
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#include <QPainter>
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#include <QFile>
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#include <QDir>
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@ -211,80 +211,11 @@ void DolphinCategoryDrawer::drawCategory(const QModelIndex &index, int sortRole,
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paintText = false;
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paintIcon = false;
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starRect.setTop(option.rect.top() + (option.rect.height() / 2) - (iconSize / 2));
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starRect.setSize(QSize(iconSize, iconSize));
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QPixmap pixmap = KIconLoader::global()->loadIcon("rating", KIconLoader::Small);
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QPixmap smallPixmap = KIconLoader::global()->loadIcon("rating", KIconLoader::NoGroup, iconSize / 2);
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QPixmap disabledPixmap = KIconLoader::global()->loadIcon("rating", KIconLoader::Small);
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QImage img = disabledPixmap.toImage();
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Blitz::grayscale(img);
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disabledPixmap = QPixmap::fromImage(img);
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int rating = category.toInt();
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for (int i = 0; i < rating - (rating % 2); i += 2) {
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painter->drawPixmap(starRect, pixmap);
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if (option.direction == Qt::LeftToRight)
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{
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starRect.setLeft(starRect.left() + iconSize + (iconSize / 4) /* separator between stars */);
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starRect.setRight(starRect.right() + iconSize + (iconSize / 4) /* separator between stars */);
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}
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else
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{
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starRect.setLeft(starRect.left() - iconSize - (iconSize / 4) /* separator between stars */);
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starRect.setRight(starRect.right() - iconSize - (iconSize / 4) /* separator between stars */);
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}
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}
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if (rating && rating % 2) {
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if (option.direction == Qt::RightToLeft)
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{
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starRect.setLeft(starRect.left() + (iconSize / 2) /* separator between stars */);
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}
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starRect.setTop(option.rect.top() + (option.rect.height() / 2) - (iconSize / 4));
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starRect.setSize(QSize(iconSize / 2, iconSize / 2));
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painter->drawPixmap(starRect, smallPixmap);
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starRect.setTop(opt.rect.top() + (option.rect.height() / 2) - (iconSize / 2));
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if (option.direction == Qt::LeftToRight)
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{
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starRect.setLeft(starRect.left() + (iconSize / 2) + (iconSize / 4));
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starRect.setRight(starRect.right() + (iconSize / 2) + (iconSize / 4));
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}
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else
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{
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starRect.setLeft(starRect.left() - (iconSize / 2) - (iconSize / 4));
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starRect.setRight(starRect.right() - (iconSize / 2) - (iconSize / 4));
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}
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if (option.direction == Qt::RightToLeft)
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{
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starRect.setLeft(starRect.left() - (iconSize / 2));
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starRect.setRight(starRect.right() - (iconSize / 2));
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}
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starRect.setSize(QSize(iconSize, iconSize));
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}
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for (int i = rating; i < 9; i += 2) {
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painter->drawPixmap(starRect, disabledPixmap);
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if (option.direction == Qt::LeftToRight)
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{
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starRect.setLeft(starRect.left() + iconSize + (iconSize / 4));
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starRect.setRight(starRect.right() + iconSize + (iconSize / 4));
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}
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else
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{
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starRect.setLeft(starRect.left() - iconSize - (iconSize / 4));
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starRect.setRight(starRect.right() - iconSize - (iconSize / 4));
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}
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}
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painter->setLayoutDirection( option.direction );
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QRect ratingRect( option.rect );
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ratingRect.setTop(option.rect.top() + (option.rect.height() / 2) - (iconSize / 2));
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ratingRect.setHeight( iconSize );
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Nepomuk::RatingPainter::drawRating( painter, ratingRect, Qt::AlignLeft, category.toInt() );
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break;
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}
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310
src/ratingpainter.cpp
Normal file
310
src/ratingpainter.cpp
Normal file
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@ -0,0 +1,310 @@
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/*
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This file is part of the Nepomuk KDE project.
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Copyright (C) 2007 Sebastian Trueg <trueg@kde.org>
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Library General Public
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License version 2 as published by the Free Software Foundation.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Library General Public License for more details.
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You should have received a copy of the GNU Library General Public License
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along with this library; see the file COPYING.LIB. If not, write to
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the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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Boston, MA 02110-1301, USA.
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*/
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#include "ratingpainter.h"
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#include <QtGui/QPainter>
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#include <QtGui/QPixmap>
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#include <kicon.h>
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#include <kiconeffect.h>
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#include <kdebug.h>
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class Nepomuk::RatingPainter::Private
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{
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public:
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Private()
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: maxRating(10),
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icon( "rating" ),
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bHalfSteps(true),
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alignment(Qt::AlignCenter),
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direction(Qt::LeftToRight) {
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}
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int maxRating;
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KIcon icon;
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bool bHalfSteps;
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Qt::Alignment alignment;
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Qt::LayoutDirection direction;
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QPixmap customPixmap;
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};
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Nepomuk::RatingPainter::RatingPainter()
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: d(new Private())
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{
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}
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Nepomuk::RatingPainter::~RatingPainter()
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{
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delete d;
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}
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int Nepomuk::RatingPainter::maxRating() const
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{
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return d->maxRating;
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}
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bool Nepomuk::RatingPainter::halfStepsEnabled() const
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{
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return d->bHalfSteps;
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}
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Qt::Alignment Nepomuk::RatingPainter::alignment() const
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{
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return d->alignment;
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}
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Qt::LayoutDirection Nepomuk::RatingPainter::direction() const
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{
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return d->direction;
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}
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KIcon Nepomuk::RatingPainter::icon() const
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{
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return d->icon;
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}
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QPixmap Nepomuk::RatingPainter::customPixmap() const
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{
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return d->customPixmap;
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}
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void Nepomuk::RatingPainter::setMaxRating( int max )
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{
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d->maxRating = max;
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}
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void Nepomuk::RatingPainter::setHalfStepsEnabled( bool enabled )
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{
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d->bHalfSteps = enabled;
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}
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void Nepomuk::RatingPainter::setAlignment( Qt::Alignment align )
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{
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d->alignment = align;
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}
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void Nepomuk::RatingPainter::setLayoutDirection( Qt::LayoutDirection direction )
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{
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d->direction = direction;
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}
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void Nepomuk::RatingPainter::setIcon( const KIcon& icon )
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{
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d->icon = icon;
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}
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void Nepomuk::RatingPainter::setCustomPixmap( const QPixmap& pixmap )
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{
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d->customPixmap = pixmap;
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}
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void Nepomuk::RatingPainter::draw( QPainter* painter, const QRect& rect, int rating, int hoverRating )
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{
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rating = qMin( rating, d->maxRating );
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hoverRating = qMin( hoverRating, d->maxRating );
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int numUsedStars = d->bHalfSteps ? d->maxRating/2 : d->maxRating;
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if ( hoverRating > 0 && hoverRating < rating ) {
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int tmp = hoverRating;
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hoverRating = rating;
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rating = tmp;
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}
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// get the rating pixmaps
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QPixmap ratingPix;
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if ( !d->customPixmap.isNull() ) {
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ratingPix = d->customPixmap;
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}
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else {
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KIcon ratingIcon( "rating" );
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int iconSize = qMin( rect.height(), rect.width() / numUsedStars );
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ratingPix = ratingIcon.pixmap( iconSize );
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}
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QPixmap disabledRatingPix = KIconEffect().apply( ratingPix, KIconEffect::ToGray, 1.0, QColor(), false );
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QPixmap hoverPix;
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bool half = d->bHalfSteps && rating%2;
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int numRatingStars = d->bHalfSteps ? rating/2 : rating;
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int numHoverStars = 0;
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bool halfHover = false;
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if ( hoverRating > 0 && rating != hoverRating ) {
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numHoverStars = d->bHalfSteps ? hoverRating/2 : hoverRating;
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halfHover = d->bHalfSteps && hoverRating%2;
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hoverPix = KIconEffect().apply( ratingPix, KIconEffect::ToGray, 0.5, QColor(), false );
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}
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int usedSpacing = 0;
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if ( d->alignment & Qt::AlignJustify ) {
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int w = rect.width();
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w -= numUsedStars * ratingPix.width();
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usedSpacing = w / ( numUsedStars-1 );
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}
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int i = 0;
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int x = rect.x();
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if ( d->alignment & Qt::AlignRight ) {
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x += ( rect.width() - ratingPix.width()*numUsedStars );
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}
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else if ( d->alignment & Qt::AlignCenter ) {
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x += ( rect.width() - ratingPix.width()*numUsedStars )/2;
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}
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int xInc = ratingPix.width() + usedSpacing;
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if ( d->direction == Qt::RightToLeft ) {
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x = rect.width() - ratingPix.width() - x;
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xInc = -xInc;
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}
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int y = rect.y();
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if( d->alignment & Qt::AlignVCenter ) {
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y += ( rect.height() / 2 - ratingPix.height() / 2 );
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}
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else if ( d->alignment & Qt::AlignBottom ) {
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y += ( rect.height() - ratingPix.height() );
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}
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for(; i < numRatingStars; ++i ) {
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painter->drawPixmap( x, y, ratingPix );
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x += xInc;
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}
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if( half ) {
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painter->drawPixmap( x, y, ratingPix.width()/2, ratingPix.height(),
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d->direction == Qt::LeftToRight ? ratingPix : ( numHoverStars > 0 ? hoverPix : disabledRatingPix ),
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0, 0, ratingPix.width()/2, ratingPix.height() );
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painter->drawPixmap( x + ratingPix.width()/2, y, ratingPix.width()/2, ratingPix.height(),
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d->direction == Qt::LeftToRight ? ( numHoverStars > 0 ? hoverPix : disabledRatingPix ) : ratingPix,
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ratingPix.width()/2, 0, ratingPix.width()/2, ratingPix.height() );
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x += xInc;
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++i;
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}
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for(; i < numHoverStars; ++i ) {
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painter->drawPixmap( x, y, hoverPix );
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x += xInc;
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}
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if( halfHover ) {
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painter->drawPixmap( x, y, ratingPix.width()/2, ratingPix.height(),
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d->direction == Qt::LeftToRight ? hoverPix : disabledRatingPix,
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0, 0, ratingPix.width()/2, ratingPix.height() );
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painter->drawPixmap( x + ratingPix.width()/2, y, ratingPix.width()/2, ratingPix.height(),
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d->direction == Qt::LeftToRight ? disabledRatingPix : hoverPix,
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ratingPix.width()/2, 0, ratingPix.width()/2, ratingPix.height() );
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x += xInc;
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++i;
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}
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for(; i < numUsedStars; ++i ) {
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painter->drawPixmap( x, y, disabledRatingPix );
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x += xInc;
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}
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}
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int Nepomuk::RatingPainter::fromPosition( const QRect& rect, const QPoint& pos )
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{
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int numUsedStars = d->bHalfSteps ? d->maxRating/2 : d->maxRating;
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QPixmap ratingPix;
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if ( !d->customPixmap.isNull() ) {
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ratingPix = d->customPixmap;
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}
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else {
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KIcon ratingIcon( "rating" );
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int iconSize = qMin( rect.height(), rect.width() / numUsedStars );
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ratingPix = ratingIcon.pixmap( iconSize );
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}
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QRect usedRect( rect );
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if ( d->alignment & Qt::AlignRight ) {
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usedRect.setLeft( rect.right() - numUsedStars * ratingPix.width() );
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}
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else if ( d->alignment & Qt::AlignHCenter ) {
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int x = ( rect.width() - numUsedStars * ratingPix.width() )/2;
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usedRect.setLeft( rect.left() + x );
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usedRect.setRight( rect.right() - x );
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}
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else { // d->alignment & Qt::AlignLeft
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usedRect.setRight( rect.left() + numUsedStars * ratingPix.width() - 1 );
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}
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if ( d->alignment & Qt::AlignBottom ) {
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usedRect.setTop( rect.bottom() - ratingPix.height() + 1 );
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}
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else if ( d->alignment & Qt::AlignVCenter ) {
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int x = ( rect.height() - ratingPix.height() )/2;
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usedRect.setTop( rect.top() + x );
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usedRect.setBottom( rect.bottom() - x );
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}
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else { // d->alignment & Qt::AlignTop
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usedRect.setBottom( rect.top() + ratingPix.height() - 1 );
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}
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if ( usedRect.contains( pos ) ) {
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int x = 0;
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if ( d->direction == Qt::RightToLeft ) {
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x = usedRect.right() - pos.x();
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}
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else {
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x = pos.x() - usedRect.left();
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}
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double one = ( double )usedRect.width() / ( double )d->maxRating;
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kDebug() << "rating:" << ( int )( ( double )x/one + 0.5 );
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return ( int )( ( double )x/one + 0.5 );
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}
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else {
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return -1;
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}
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}
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void Nepomuk::RatingPainter::drawRating( QPainter* painter, const QRect& rect, Qt::Alignment align, int rating, int hoverRating )
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{
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RatingPainter rp;
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rp.setAlignment( align );
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rp.setLayoutDirection( painter->layoutDirection() );
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rp.draw( painter, rect, rating, hoverRating );
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}
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int Nepomuk::RatingPainter::getRatingFromPosition( const QRect& rect, Qt::Alignment align, Qt::LayoutDirection direction, const QPoint& pos )
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{
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RatingPainter rp;
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rp.setAlignment( align );
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rp.setLayoutDirection( direction );
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return rp.fromPosition( rect, pos );
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}
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124
src/ratingpainter.h
Normal file
124
src/ratingpainter.h
Normal file
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@ -0,0 +1,124 @@
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/*
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This file is part of the Nepomuk KDE project.
|
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Copyright (C) 2007 Sebastian Trueg <trueg@kde.org>
|
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|
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This library is free software; you can redistribute it and/or
|
||||
modify it under the terms of the GNU Library General Public
|
||||
License version 2 as published by the Free Software Foundation.
|
||||
|
||||
This library 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
|
||||
Library General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU Library General Public License
|
||||
along with this library; see the file COPYING.LIB. If not, write to
|
||||
the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
|
||||
Boston, MA 02110-1301, USA.
|
||||
*/
|
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|
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#ifndef _NEPOMUK_RATING_PAINTER_H_
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#define _NEPOMUK_RATING_PAINTER_H_
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class QPainter;
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#include <QtCore/QRect>
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#include <QtCore/QPoint>
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#include <kicon.h>
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#include <nepomuk/nepomuk_export.h>
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namespace Nepomuk {
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/**
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* Utility class that draws a row of stars for a rating value.
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*/
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class NEPOMUK_EXPORT RatingPainter
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{
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public:
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/**
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* Create a new RatingPainter.
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* Normally the static methods should be sufficient.
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*/
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RatingPainter();
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~RatingPainter();
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int maxRating() const;
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bool halfStepsEnabled() const;
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Qt::Alignment alignment() const;
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Qt::LayoutDirection direction() const;
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KIcon icon() const;
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QPixmap customPixmap() const;
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/**
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* The maximum rating. Defaults to 10.
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*/
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void setMaxRating( int max );
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|
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/**
|
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* If half steps are enabled (the default) then
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* one rating step corresponds to half a star.
|
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*/
|
||||
void setHalfStepsEnabled( bool enabled );
|
||||
|
||||
/**
|
||||
* The alignment of the stars in the drawing rect.
|
||||
* All alignment flags are supported.
|
||||
*/
|
||||
void setAlignment( Qt::Alignment align );
|
||||
|
||||
/**
|
||||
* LTR or RTL
|
||||
*/
|
||||
void setLayoutDirection( Qt::LayoutDirection direction );
|
||||
|
||||
/**
|
||||
* Set a custom icon. Defaults to "rating".
|
||||
*/
|
||||
void setIcon( const KIcon& icon );
|
||||
|
||||
/**
|
||||
* Set a custom pixmap.
|
||||
*/
|
||||
void setCustomPixmap( const QPixmap& pixmap );
|
||||
|
||||
/**
|
||||
* Draw the rating into the configured rect.
|
||||
*/
|
||||
void draw( QPainter* painter, const QRect& rect, int rating, int hoverRating = -1 );
|
||||
|
||||
/**
|
||||
* Calculate the rating value from mouse position pos.
|
||||
*
|
||||
* \return The rating corresponding to pos or -1 if pos is
|
||||
* outside of the configured rect.
|
||||
*/
|
||||
int fromPosition( const QRect& rect, const QPoint& pos );
|
||||
|
||||
/**
|
||||
* Convenience method that draws a rating into the given rect.
|
||||
*
|
||||
* LayoutDirection is read from QPainter.
|
||||
*
|
||||
* \param align can be aligned vertically and horizontally. Using Qt::AlignJustify will insert spacing
|
||||
* between the stars.
|
||||
*/
|
||||
static void drawRating( QPainter* p, const QRect& rect, Qt::Alignment align, int rating, int hoverRating = -1 );
|
||||
|
||||
/**
|
||||
* Get the rating that would be selected if the user clicked position pos
|
||||
* within rect if the rating has been drawn with drawRating() using the same
|
||||
* rect and align values.
|
||||
*
|
||||
* \return The new rating or -1 if pos is outside of the rating area.
|
||||
*/
|
||||
static int getRatingFromPosition( const QRect& rect, Qt::Alignment align, Qt::LayoutDirection direction, const QPoint& pos );
|
||||
|
||||
private:
|
||||
class Private;
|
||||
Private* const d;
|
||||
};
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue