Add preliminary QAccessibleImage interface

As requested by the Maemo team.

5 files changed, 75 insertions, 2 deletions

diff --git a/src/gui/accessible/qaccessible.h b/src/gui/accessible/qaccessible.h
index 8f6d9d9..c493054 100644
--- a/src/gui/accessible/qaccessible.h
+++ b/src/gui/accessible/qaccessible.h
@@ -311,7 +311,8 @@ namespace QAccessible2
         EditableTextInterface,
         ValueInterface,
         TableInterface,
-        ActionInterface
+        ActionInterface,
+        ImageInterface
     };
 }
 
@@ -321,6 +322,7 @@ class QAccessibleEditableTextInterface;
 class QAccessibleValueInterface;
 class QAccessibleTableInterface;
 class QAccessibleActionInterface;
+class QAccessibleImageInterface;
 
 class Q_GUI_EXPORT QAccessibleInterface : public QAccessible
 {
@@ -381,6 +383,9 @@ public:
     inline QAccessibleActionInterface *actionInterface()
     { return reinterpret_cast<QAccessibleActionInterface *>(cast_helper(QAccessible2::ActionInterface)); }
 
+    inline QAccessibleImageInterface *imageInterface()
+    { return reinterpret_cast<QAccessibleImageInterface *>(cast_helper(QAccessible2::ImageInterface)); }
+
 private:
     QAccessible2Interface *cast_helper(QAccessible2::InterfaceType);
 };
diff --git a/src/gui/accessible/qaccessible2.cpp b/src/gui/accessible/qaccessible2.cpp
index 0867368..b878cf1 100644
--- a/src/gui/accessible/qaccessible2.cpp
+++ b/src/gui/accessible/qaccessible2.cpp
@@ -120,6 +120,18 @@ QT_BEGIN_NAMESPACE
     \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
 */
 
+/*!
+    \class QAccessibleImageInterface
+    \ingroup accessibility
+    \internal
+    \preliminary
+
+    \brief The QAccessibleImageInterface class implements support for
+    the IAccessibleImage interface.
+
+    \link http://www.linux-foundation.org/en/Accessibility/IAccessible2 IAccessible2 Specification \endlink
+*/
+
 QAccessibleSimpleEditableTextInterface::QAccessibleSimpleEditableTextInterface(
                 QAccessibleInterface *accessibleInterface)
     : iface(accessibleInterface)
diff --git a/src/gui/accessible/qaccessible2.h b/src/gui/accessible/qaccessible2.h
index 435c640..ba12a7c 100644
--- a/src/gui/accessible/qaccessible2.h
+++ b/src/gui/accessible/qaccessible2.h
@@ -82,6 +82,7 @@ inline QAccessible2Interface *qAccessibleTextCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleEditableTextCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleTableCastHelper() { return 0; }
 inline QAccessible2Interface *qAccessibleActionCastHelper() { return 0; }
+inline QAccessible2Interface *qAccessibleImageCastHelper() { return 0; }
 
 #define Q_ACCESSIBLE_OBJECT \
     public: \
@@ -98,6 +99,8 @@ inline QAccessible2Interface *qAccessibleActionCastHelper() { return 0; }
             return qAccessibleTableCastHelper(); \
         case QAccessible2::ActionInterface: \
             return qAccessibleActionCastHelper(); \
+        case QAccessible2::ImageInterface: \
+            return qAccessibleImageCastHelper(); \
         } \
         return 0; \
     } \
@@ -224,6 +227,16 @@ public:
     virtual QStringList keyBindings(int actionIndex) = 0;
 };
 
+class Q_GUI_EXPORT QAccessibleImageInterface : public QAccessible2Interface
+{
+public:
+    inline QAccessible2Interface *qAccessibleImageCastHelper() { return this; }
+
+    virtual QString imageDescription() = 0;
+    virtual QSize imageSize() = 0;
+    virtual QRect imagePosition(QAccessible2::CoordinateType coordType) = 0;
+};
+
 #endif // QT_NO_ACCESSIBILITY
 
 QT_END_NAMESPACE
diff --git a/src/plugins/accessible/widgets/simplewidgets.cpp b/src/plugins/accessible/widgets/simplewidgets.cpp
index aa51759..1d801e4 100644
--- a/src/plugins/accessible/widgets/simplewidgets.cpp
+++ b/src/plugins/accessible/widgets/simplewidgets.cpp
@@ -602,6 +602,44 @@ int QAccessibleDisplay::navigate(RelationFlag rel, int entry, QAccessibleInterfa
     return QAccessibleWidgetEx::navigate(rel, entry, target);
 }
 
+/*! \reimp */
+QString QAccessibleDisplay::imageDescription()
+{
+    return widget()->toolTip();
+}
+
+/*! \reimp */
+QSize QAccessibleDisplay::imageSize()
+{
+    QLabel *label = qobject_cast<QLabel *>(widget());
+    if (!label)
+        return QSize();
+    const QPixmap *pixmap = label->pixmap();
+    if (!pixmap)
+        return QSize();
+    return pixmap->size();
+}
+
+/*! \reimp */
+QRect QAccessibleDisplay::imagePosition(QAccessible2::CoordinateType coordType)
+{
+    QLabel *label = qobject_cast<QLabel *>(widget());
+    if (!label)
+        return QRect();
+    const QPixmap *pixmap = label->pixmap();
+    if (!pixmap)
+        return QRect();
+
+    switch (coordType) {
+    case QAccessible2::RelativeToScreen:
+        return QRect(label->mapToGlobal(label->pos()), label->size());
+    case QAccessible2::RelativeToParent:
+        return label->geometry();
+    }
+
+    return QRect();
+}
+
 #ifndef QT_NO_LINEEDIT
 /*!
   \class QAccessibleLineEdit
diff --git a/src/plugins/accessible/widgets/simplewidgets.h b/src/plugins/accessible/widgets/simplewidgets.h
index 0c1cf5e..5182bdd 100644
--- a/src/plugins/accessible/widgets/simplewidgets.h
+++ b/src/plugins/accessible/widgets/simplewidgets.h
@@ -111,7 +111,7 @@ protected:
 };
 #endif // QT_NO_TOOLBUTTON
 
-class QAccessibleDisplay : public QAccessibleWidgetEx
+class QAccessibleDisplay : public QAccessibleWidgetEx, public QAccessibleImageInterface
 {
     Q_ACCESSIBLE_OBJECT
 public:
@@ -122,6 +122,11 @@ public:
 
     Relation relationTo(int child, const QAccessibleInterface *other, int otherChild) const;
     int navigate(RelationFlag, int entry, QAccessibleInterface **target) const;
+
+    // QAccessibleImageInterface
+    QString imageDescription();
+    QSize imageSize();
+    QRect imagePosition(QAccessible2::CoordinateType coordType);
 };
 
 #ifndef QT_NO_LINEEDIT