Changeset 64473 in vbox

Timestamp:

Oct 28, 2016 3:31:29 PM (8 years ago)

Author:

vboxsync

svn:sync-xref-src-repo-rev:

111607

Message:

FE/Qt: bugref:6899: Accessibility support (step 105): Extend QITreeView with API allowing to make items accessible.

Location:

trunk/src/VBox/Frontends/VirtualBox/src/extensions

Files:

• QITreeView.cpp (modified) (1 diff)
• QITreeView.h (modified) (2 diffs)

trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeView.cpp

@@ -29 +29 @@
 #endif /* !VBOX_WITH_PRECOMPILED_HEADERS */
 
+
+/*********************************************************************************************************************************
+*   Class QITreeViewItem implementation.                                                                                         *
+*********************************************************************************************************************************/
+
+QRect QITreeViewItem::rect() const
+{
+    /* Redirect call to parent-tree: */
+    return parentTree() ? parentTree()->visualRect(modelIndex()) : QRect();
+}
+
+QModelIndex QITreeViewItem::modelIndex() const
+{
+    /* Make sure it's not root model-index: */
+    if (   parentTree()->rootIndex().internalPointer()
+        && parentTree()->rootIndex().internalPointer() == this)
+        return parentTree()->rootIndex();
+
+    /* Determine our index inside parent: */
+    int iIndexInParent = -1;
+    if (parentItem())
+    {
+        for (int i = 0; i < parentItem()->childCount(); ++i)
+            if (parentItem()->childItem(i) == this)
+            {
+                iIndexInParent = i;
+                break;
+            }
+    }
+    else
+    {
+        for (int i = 0; i < parentTree()->childCount(); ++i)
+            if (parentTree()->childItem(i) == this)
+            {
+                iIndexInParent = i;
+                break;
+            }
+    }
+    if (iIndexInParent == -1)
+        return QModelIndex();
+
+    /* Get parent model-index: */
+    QModelIndex parentModelIndex = parentItem() ? parentItem()->modelIndex() : parentTree()->rootIndex();
+
+    /* Return model-index as child of parent model-index: */
+    return parentModelIndex.child(iIndexInParent, 0);
+}
+
+
+/*********************************************************************************************************************************
+*   Class QITreeView implementation.                                                                                             *
+*********************************************************************************************************************************/
 
 QITreeView::QITreeView(QWidget *pParent)

trunk/src/VBox/Frontends/VirtualBox/src/extensions/QITreeView.h

@@ -21 +21 @@
 /* Qt includes: */
 #include <QTreeView>
+
+/* Forward declarations: */
+class QITreeViewItem;
+class QITreeView;
+
+
+/** OObject subclass used as item for the QITreeView. */
+class QITreeViewItem : public QObject
+{
+    Q_OBJECT;
+
+public:
+
+    /** Constructs tree-view item for passed @a pParent. */
+    QITreeViewItem(QITreeView *pParent)
+        : m_pParentTree(pParent)
+        , m_pParentItem(0)
+    {}
+
+    /** Constructs tree-view item for passed @a pParent. */
+    QITreeViewItem(QITreeViewItem *pParentItem)
+        : m_pParentTree(pParentItem->parentTree())
+        , m_pParentItem(pParentItem)
+    {}
+
+    /** Returns the parent tree-view. */
+    QITreeView *parentTree() const { return m_pParentTree; }
+    /** Returns the parent tree-view item. */
+    QITreeViewItem *parentItem() const { return m_pParentItem; }
+
+    /** Returns the number of children. */
+    virtual int childCount() const = 0;
+    /** Returns the child item with @a iIndex. */
+    virtual QITreeViewItem *childItem(int iIndex) const = 0;
+
+    /** Returns the item text. */
+    virtual QString text() const = 0;
+
+    /** Returns the rectangle. */
+    QRect rect() const;
+
+private:
+
+    /** Returns the model-index: */
+    QModelIndex modelIndex() const;
+
+    /** Holds the parent tree reference. */
+    QITreeView *m_pParentTree;
+    /** Holds the parent item reference. */
+    QITreeViewItem *m_pParentItem;
+};
 
 
@@ -50 +101 @@
     /** Constructs table-view passing @a pParent to the base-class. */
     QITreeView(QWidget *pParent = 0);
+
+    /** Returns the number of children. */
+    virtual int childCount() const { return 0; }
+    /** Returns the child item with @a iIndex. */
+    virtual QITreeViewItem *childItem(int /* iIndex */) const { return 0; }
 
     /** Returns child rectangle. */