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+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qmlgraphicsimage_p.h"
+#include "qmlgraphicsimage_p_p.h"
+
+#include <QKeyEvent>
+#include <QPainter>
+
+QT_BEGIN_NAMESPACE
+
+
+QML_DEFINE_TYPE(Qt,4,6,(QT_VERSION&0x00ff00)>>8,Image,QmlGraphicsImage)
+
+/*!
+ \qmlclass Image QmlGraphicsImage
+ \brief The Image element allows you to add bitmaps to a scene.
+ \inherits Item
+
+ The Image element supports untransformed, stretched and tiled.
+
+ For an explanation of stretching and tiling, see the fillMode property description.
+
+ Examples:
+ \table
+ \row
+ \o \image declarative-qtlogo1.png
+ \o Untransformed
+ \qml
+ Image { source: "pics/qtlogo.png" }
+ \endqml
+ \row
+ \o \image declarative-qtlogo2.png
+ \o fillMode: Stretch (default)
+ \qml
+ Image {
+ width: 160
+ height: 160
+ source: "pics/qtlogo.png"
+ }
+ \endqml
+ \row
+ \o \image declarative-qtlogo3.png
+ \o fillMode: Tile
+ \qml
+ Image {
+ fillMode: Image.Tile
+ width: 160; height: 160
+ source: "pics/qtlogo.png"
+ }
+ \endqml
+ \row
+ \o \image declarative-qtlogo6.png
+ \o fillMode: TileVertically
+ \qml
+ Image {
+ fillMode: Image.TileVertically
+ width: 160; height: 160
+ source: "pics/qtlogo.png"
+ }
+ \endqml
+ \row
+ \o \image declarative-qtlogo5.png
+ \o fillMode: TileHorizontally
+ \qml
+ Image {
+ fillMode: Image.TileHorizontally
+ width: 160; height: 160
+ source: "pics/qtlogo.png"
+ }
+ \endqml
+ \endtable
+ */
+
+/*!
+ \internal
+ \class QmlGraphicsImage Image
+ \brief The QmlGraphicsImage class provides an image item that you can add to a QmlView.
+
+ \ingroup group_coreitems
+
+ Example:
+ \qml
+ Image { source: "pics/star.png" }
+ \endqml
+
+ A QmlGraphicsImage object can be instantiated in Qml using the tag \l Image.
+*/
+
+QmlGraphicsImage::QmlGraphicsImage(QmlGraphicsItem *parent)
+ : QmlGraphicsImageBase(*(new QmlGraphicsImagePrivate), parent)
+{
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QmlGraphicsImage::QmlGraphicsImage(QmlGraphicsImagePrivate &dd, QmlGraphicsItem *parent)
+ : QmlGraphicsImageBase(dd, parent)
+{
+ setFlag(QGraphicsItem::ItemHasNoContents, false);
+}
+
+QmlGraphicsImage::~QmlGraphicsImage()
+{
+}
+
+QPixmap QmlGraphicsImage::pixmap() const
+{
+ Q_D(const QmlGraphicsImage);
+ return d->pix;
+}
+
+void QmlGraphicsImage::setPixmap(const QPixmap &pix)
+{
+ Q_D(QmlGraphicsImage);
+ if (!d->url.isEmpty())
+ return;
+ d->pix = pix;
+
+ setImplicitWidth(d->pix.width());
+ setImplicitHeight(d->pix.height());
+
+ update();
+}
+
+/*!
+ \qmlproperty enumeration Image::fillMode
+
+ Set this property to define what happens when the image set for the item is smaller
+ than the size of the item.
+
+ \list
+ \o Stretch - the image is scaled to fit
+ \o PreserveAspectFit - the image is scaled uniformly to fit without cropping
+ \o PreserveAspectCrop - the image is scaled uniformly to fill, cropping if necessary
+ \o Tile - the image is duplicated horizontally and vertically
+ \o TileVertically - the image is stretched horizontally and tiled vertically
+ \o TileHorizontally - the image is stretched vertically and tiled horizontally
+ \endlist
+
+ \image declarative-image_fillMode.gif
+ \sa examples/declarative/fillmode
+ \sa examples/declarative/aspectratio
+*/
+QmlGraphicsImage::FillMode QmlGraphicsImage::fillMode() const
+{
+ Q_D(const QmlGraphicsImage);
+ return d->fillMode;
+}
+
+void QmlGraphicsImage::setFillMode(FillMode mode)
+{
+ Q_D(QmlGraphicsImage);
+ if (d->fillMode == mode)
+ return;
+ d->fillMode = mode;
+ update();
+ emit fillModeChanged();
+}
+
+/*!
+ \qmlproperty enum Image::status
+
+ This property holds the status of image loading. It can be one of:
+ \list
+ \o Null - no image has been set
+ \o Ready - the image has been loaded
+ \o Loading - the image is currently being loaded
+ \o Error - an error occurred while loading the image
+ \endlist
+
+ \sa progress
+*/
+
+/*!
+ \qmlproperty real Image::progress
+
+ This property holds the progress of image loading, from 0.0 (nothing loaded)
+ to 1.0 (finished).
+
+ \sa status
+*/
+
+/*!
+ \qmlproperty bool Image::smooth
+
+ Set this property if you want the image to be smoothly filtered when scaled or
+ transformed. Smooth filtering gives better visual quality, but is slower. If
+ the image is displayed at its natural size, this property has no visual or
+ performance effect.
+
+ \note Generally scaling artifacts are only visible if the image is stationary on
+ the screen. A common pattern when animating an image is to disable smooth
+ filtering at the beginning of the animation and reenable it at the conclusion.
+*/
+
+/*!
+ \qmlproperty url Image::source
+
+ Image can handle any image format supported by Qt, loaded from any URL scheme supported by Qt.
+
+ The URL may be absolute, or relative to the URL of the component.
+*/
+
+void QmlGraphicsImage::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWidget *)
+{
+ Q_D(QmlGraphicsImage);
+ if (d->pix.isNull())
+ return;
+
+ bool oldAA = p->testRenderHint(QPainter::Antialiasing);
+ bool oldSmooth = p->testRenderHint(QPainter::SmoothPixmapTransform);
+ if (d->smooth)
+ p->setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform, d->smooth);
+
+ if (width() != d->pix.width() || height() != d->pix.height()) {
+ if (d->fillMode >= Tile) {
+ if (d->fillMode == Tile)
+ p->drawTiledPixmap(QRectF(0,0,width(),height()), d->pix);
+ else if (d->fillMode == TileVertically)
+ p->drawTiledPixmap(QRectF(0,0,d->pix.width(),height()), d->pix);
+ else
+ p->drawTiledPixmap(QRectF(0,0,width(),d->pix.height()), d->pix);
+ } else {
+ qreal widthScale = width() / qreal(d->pix.width());
+ qreal heightScale = height() / qreal(d->pix.height());
+
+ QTransform scale;
+
+ if (d->fillMode == PreserveAspectFit) {
+ if (widthScale < heightScale) {
+ heightScale = widthScale;
+ scale.translate(0, (height() - heightScale * d->pix.height()) / 2);
+ } else if(heightScale < widthScale) {
+ widthScale = heightScale;
+ scale.translate((width() - widthScale * d->pix.width()) / 2, 0);
+ }
+ } else if (d->fillMode == PreserveAspectCrop) {
+ if (widthScale < heightScale) {
+ widthScale = heightScale;
+ scale.translate((width() - widthScale * d->pix.width()) / 2, 0);
+ } else if(heightScale < widthScale) {
+ heightScale = widthScale;
+ scale.translate(0, (height() - heightScale * d->pix.height()) / 2);
+ }
+ }
+
+ scale.scale(widthScale, heightScale);
+ QTransform old = p->transform();
+ p->setWorldTransform(scale * old);
+ p->drawPixmap(0, 0, d->pix);
+ p->setWorldTransform(old);
+ }
+ } else {
+ p->drawPixmap(0, 0, d->pix);
+ }
+
+ if (d->smooth) {
+ p->setRenderHint(QPainter::Antialiasing, oldAA);
+ p->setRenderHint(QPainter::SmoothPixmapTransform, oldSmooth);
+ }
+}
+
+QT_END_NAMESPACE