Add paintedWidth and paintedHeight properties to QmlGraphicsImage.

3 files changed, 59 insertions, 2 deletions

diff --git a/src/declarative/graphicsitems/qmlgraphicsimage.cpp b/src/declarative/graphicsitems/qmlgraphicsimage.cpp
index a777de7..ad43027 100644
--- a/src/declarative/graphicsitems/qmlgraphicsimage.cpp
+++ b/src/declarative/graphicsitems/qmlgraphicsimage.cpp
@@ -139,6 +139,12 @@ QmlGraphicsImage::~QmlGraphicsImage()
 {
 }
 
+void QmlGraphicsImage::setSource(const QUrl &url)
+{
+    QmlGraphicsImageBase::setSource(url);
+    updatePaintedGeometry();
+}
+
 /*!
     \qmlproperty QPixmap Image::pixmap
 
@@ -205,9 +211,22 @@ void QmlGraphicsImage::setFillMode(FillMode mode)
         return;
     d->fillMode = mode;
     update();
+    updatePaintedGeometry();
     emit fillModeChanged();
 }
 
+qreal QmlGraphicsImage::paintedWidth() const
+{
+    Q_D(const QmlGraphicsImage);
+    return d->paintedWidth;
+}
+
+qreal QmlGraphicsImage::paintedHeight() const
+{
+    Q_D(const QmlGraphicsImage);
+    return d->paintedHeight;
+}
+
 /*!
     \qmlproperty enum Image::status
 
@@ -244,6 +263,33 @@ void QmlGraphicsImage::setFillMode(FillMode mode)
     filtering at the beginning of the animation and reenable it at the conclusion.
 */
 
+void QmlGraphicsImage::updatePaintedGeometry()
+{
+    Q_D(QmlGraphicsImage);
+
+    if (d->fillMode == PreserveAspectFit) {
+        qreal widthScale = width() / qreal(d->pix.width());
+        qreal heightScale = height() / qreal(d->pix.height());
+        if (widthScale <= heightScale) {
+            d->paintedWidth = width();
+            d->paintedHeight = widthScale * qreal(d->pix.height());
+        } else if(heightScale < widthScale) {
+            d->paintedWidth = heightScale * qreal(d->pix.width());
+            d->paintedHeight = height();
+        }
+    } else {
+        d->paintedWidth = width();
+        d->paintedHeight = height();
+    }
+    emit paintedGeometryChanged();
+}
+
+void QmlGraphicsImage::geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry)
+{
+    QmlGraphicsImageBase::geometryChanged(newGeometry, oldGeometry);
+    updatePaintedGeometry();
+}
+
 /*!
     \qmlproperty url Image::source
 
@@ -278,7 +324,7 @@ void QmlGraphicsImage::paint(QPainter *p, const QStyleOptionGraphicsItem *, QWid
             QTransform scale;
 
             if (d->fillMode == PreserveAspectFit) {
-                if (widthScale < heightScale) {
+                if (widthScale <= heightScale) {
                     heightScale = widthScale;
                     scale.translate(0, (height() - heightScale * d->pix.height()) / 2);
                 } else if(heightScale < widthScale) {
diff --git a/src/declarative/graphicsitems/qmlgraphicsimage_p.h b/src/declarative/graphicsitems/qmlgraphicsimage_p.h
index 2547b78..36066e1 100644
--- a/src/declarative/graphicsitems/qmlgraphicsimage_p.h
+++ b/src/declarative/graphicsitems/qmlgraphicsimage_p.h
@@ -59,6 +59,8 @@ class Q_DECLARATIVE_EXPORT QmlGraphicsImage : public QmlGraphicsImageBase
 
     Q_PROPERTY(QPixmap pixmap READ pixmap WRITE setPixmap NOTIFY pixmapChanged DESIGNABLE false)
     Q_PROPERTY(FillMode fillMode READ fillMode WRITE setFillMode NOTIFY fillModeChanged)
+    Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedGeometryChanged)
+    Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedGeometryChanged)
 
 public:
     QmlGraphicsImage(QmlGraphicsItem *parent=0);
@@ -71,13 +73,20 @@ public:
     QPixmap pixmap() const;
     void setPixmap(const QPixmap &);
 
+    qreal paintedWidth() const;
+    qreal paintedHeight() const;
+
+    void setSource(const QUrl &url);
     void paint(QPainter *, const QStyleOptionGraphicsItem *, QWidget *);
 
 Q_SIGNALS:
     void fillModeChanged();
+    void paintedGeometryChanged();
 
 protected:
     QmlGraphicsImage(QmlGraphicsImagePrivate &dd, QmlGraphicsItem *parent);
+    void geometryChanged(const QRectF &newGeometry, const QRectF &oldGeometry);
+    void updatePaintedGeometry();
 
 private:
     Q_DISABLE_COPY(QmlGraphicsImage)
diff --git a/src/declarative/graphicsitems/qmlgraphicsimage_p_p.h b/src/declarative/graphicsitems/qmlgraphicsimage_p_p.h
index f6b4e51..3a5acca 100644
--- a/src/declarative/graphicsitems/qmlgraphicsimage_p_p.h
+++ b/src/declarative/graphicsitems/qmlgraphicsimage_p_p.h
@@ -64,11 +64,13 @@ class QmlGraphicsImagePrivate : public QmlGraphicsImageBasePrivate
 
 public:
     QmlGraphicsImagePrivate()
-      : fillMode(QmlGraphicsImage::Stretch)
+      : fillMode(QmlGraphicsImage::Stretch), paintedWidth(0), paintedHeight(0)
     {
     }
 
     QmlGraphicsImage::FillMode fillMode;
+    qreal paintedWidth;
+    qreal paintedHeight;
     void setPixmap(const QPixmap &pix);
 };