Add contentWidth and contentHeight properties to Text elements.

For Text and TextEdit this is a rename of paintedWidth and paintedHeight
both of which remain as synonyms of the content properties for
compatability.  For TextInput this is a new property.

Task-number: QTBUG-23691
Task-number: QTBUG-15160
Change-Id: Idbdc72fad34922be21b649ca45fc39b5e533ed1a
Reviewed-by: Yann Bodson <yann.bodson@nokia.com>

src/quick/items/qquicktext.cpp

@@ -377,8 +377,8 @@ void QQuickTextPrivate::updateSize()
     if (text.isEmpty()) {
         qreal fontHeight = fm.height();
         q->setImplicitSize(0, fontHeight);
-        paintedSize = QSize(0, fontHeight);
-        emit q->paintedSizeChanged();
+        contentSize = QSize(0, fontHeight);
+        emit q->contentSizeChanged();
         updateType = UpdatePaintNode;
         q->update();
         return;
@@ -449,9 +449,9 @@ void QQuickTextPrivate::updateSize()
 
     if (iWidth == -1)
         q->setImplicitHeight(size.height());
-    if (paintedSize != size) {
-        paintedSize = size;
-        emit q->paintedSizeChanged();
+    if (contentSize != size) {
+        contentSize = size;
+        emit q->contentSizeChanged();
     }
     updateType = UpdatePaintNode;
     q->update();
@@ -1487,8 +1487,8 @@ void QQuickText::setVAlign(VAlignment align)
     wrap if an explicit width has been set.  wrapMode can be one of:
 
     \list
-    \o Text.NoWrap (default) - no wrapping will be performed. If the text contains insufficient newlines, then \l paintedWidth will exceed a set width.
-    \o Text.WordWrap - wrapping is done on word boundaries only. If a word is too long, \l paintedWidth will exceed a set width.
+    \o Text.NoWrap (default) - no wrapping will be performed. If the text contains insufficient newlines, then \l contentWidth will exceed a set width.
+    \o Text.WordWrap - wrapping is done on word boundaries only. If a word is too long, \l contentWidth will exceed a set width.
     \o Text.WrapAnywhere - wrapping is done at any point on a line, even if it occurs in the middle of a word.
     \o Text.Wrap - if possible, wrapping occurs at a word boundary; otherwise it will occur at the appropriate point on the line, even in the middle of a word.
     \endlist
@@ -1914,27 +1914,27 @@ void QQuickText::updatePolish()
 }
 
 /*!
-    \qmlproperty real QtQuick2::Text::paintedWidth
+    \qmlproperty real QtQuick2::Text::contentWidth
 
     Returns the width of the text, including width past the width
     which is covered due to insufficient wrapping if WrapMode is set.
 */
-qreal QQuickText::paintedWidth() const
+qreal QQuickText::contentWidth() const
 {
     Q_D(const QQuickText);
-    return d->paintedSize.width();
+    return d->contentSize.width();
 }
 
 /*!
-    \qmlproperty real QtQuick2::Text::paintedHeight
+    \qmlproperty real QtQuick2::Text::contentHeight
 
     Returns the height of the text, including height past the height
     which is covered due to there being more text than fits in the set height.
 */
-qreal QQuickText::paintedHeight() const
+qreal QQuickText::contentHeight() const
 {
     Q_D(const QQuickText);
-    return d->paintedSize.height();
+    return d->contentSize.height();
 }
 
 /*!

src/quick/items/qquicktext_p.h

@@ -80,8 +80,10 @@ class Q_QUICK_PRIVATE_EXPORT QQuickText : public QQuickImplicitSizeItem
 
     Q_PROPERTY(TextFormat textFormat READ textFormat WRITE setTextFormat NOTIFY textFormatChanged)
     Q_PROPERTY(TextElideMode elide READ elideMode WRITE setElideMode NOTIFY elideModeChanged) //### elideMode?
-    Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedSizeChanged)
-    Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedSizeChanged)
+    Q_PROPERTY(qreal contentWidth READ contentWidth NOTIFY contentSizeChanged)
+    Q_PROPERTY(qreal contentHeight READ contentHeight NOTIFY contentSizeChanged)
+    Q_PROPERTY(qreal paintedWidth READ contentWidth NOTIFY contentSizeChanged)  // Compatibility
+    Q_PROPERTY(qreal paintedHeight READ contentHeight NOTIFY contentSizeChanged)
     Q_PROPERTY(qreal lineHeight READ lineHeight WRITE setLineHeight NOTIFY lineHeightChanged)
     Q_PROPERTY(LineHeightMode lineHeightMode READ lineHeightMode WRITE setLineHeightMode NOTIFY lineHeightModeChanged)
     Q_PROPERTY(QUrl baseUrl READ baseUrl WRITE setBaseUrl RESET resetBaseUrl NOTIFY baseUrlChanged)
@@ -188,8 +190,8 @@ class Q_QUICK_PRIVATE_EXPORT QQuickText : public QQuickImplicitSizeItem
 
     int resourcesLoading() const; // mainly for testing
 
-    qreal paintedWidth() const;
-    qreal paintedHeight() const;
+    qreal contentWidth() const;
+    qreal contentHeight() const;
 
     QRectF boundingRect() const;
     Q_INVOKABLE void doLayout();
@@ -209,7 +211,7 @@ class Q_QUICK_PRIVATE_EXPORT QQuickText : public QQuickImplicitSizeItem
     void maximumLineCountChanged();
     void textFormatChanged(TextFormat textFormat);
     void elideModeChanged(TextElideMode mode);
-    void paintedSizeChanged();
+    void contentSizeChanged();
     void lineHeightChanged(qreal lineHeight);
     void lineHeightModeChanged(LineHeightMode mode);
     void fontSizeModeChanged();

src/quick/items/qquicktext_p_p.h

@@ -124,7 +124,7 @@ class Q_AUTOTEST_EXPORT QQuickTextPrivate : public QQuickImplicitSizeItemPrivate
     bool needToUpdateLayout:1;
 
     QRect layedOutTextRect;
-    QSize paintedSize;
+    QSize contentSize;
     qreal naturalWidth;
     virtual qreal getImplicitWidth() const;
 

src/quick/items/qquicktextedit.cpp

@@ -271,7 +271,6 @@ void QQuickTextEdit::setText(const QString &text)
     } else {
         d->control->setPlainText(text);
     }
-    q_textChanged();
 }
 
 /*!
@@ -663,27 +662,27 @@ int QQuickTextEdit::length() const
 }
 
 /*!
-    \qmlproperty real QtQuick2::TextEdit::paintedWidth
+    \qmlproperty real QtQuick2::TextEdit::contentWidth
 
     Returns the width of the text, including the width past the width
     which is covered due to insufficient wrapping if \l wrapMode is set.
 */
-qreal QQuickTextEdit::paintedWidth() const
+qreal QQuickTextEdit::contentWidth() const
 {
     Q_D(const QQuickTextEdit);
-    return d->paintedSize.width();
+    return d->contentSize.width();
 }
 
 /*!
-    \qmlproperty real QtQuick2::TextEdit::paintedHeight
+    \qmlproperty real QtQuick2::TextEdit::contentHeight
 
     Returns the height of the text, including the height past the height
     that is covered if the text does not fit within the set height.
 */
-qreal QQuickTextEdit::paintedHeight() const
+qreal QQuickTextEdit::contentHeight() const
 {
     Q_D(const QQuickTextEdit);
-    return d->paintedSize.height();
+    return d->contentSize.height();
 }
 
 /*!
@@ -1966,8 +1965,11 @@ void QQuickTextEdit::updateSize()
         else
             setImplicitHeight(newHeight);
 
-        d->paintedSize = QSize(newWidth, newHeight);
-        emit paintedSizeChanged();
+        QSize size(newWidth, newHeight);
+        if (d->contentSize != size) {
+            d->contentSize = size;
+            emit contentSizeChanged();
+        }
     } else {
         d->dirty = true;
     }

src/quick/items/qquicktextedit_p.h

@@ -72,8 +72,10 @@ class Q_AUTOTEST_EXPORT QQuickTextEdit : public QQuickImplicitSizeItem
     Q_PROPERTY(WrapMode wrapMode READ wrapMode WRITE setWrapMode NOTIFY wrapModeChanged)
     Q_PROPERTY(int lineCount READ lineCount NOTIFY lineCountChanged)
     Q_PROPERTY(int length READ length NOTIFY textChanged)
-    Q_PROPERTY(qreal paintedWidth READ paintedWidth NOTIFY paintedSizeChanged)
-    Q_PROPERTY(qreal paintedHeight READ paintedHeight NOTIFY paintedSizeChanged)
+    Q_PROPERTY(qreal contentWidth READ contentWidth NOTIFY contentSizeChanged)
+    Q_PROPERTY(qreal contentHeight READ contentHeight NOTIFY contentSizeChanged)
+    Q_PROPERTY(qreal paintedWidth READ contentWidth NOTIFY contentSizeChanged)  // Compatibility
+    Q_PROPERTY(qreal paintedHeight READ contentHeight NOTIFY contentSizeChanged)
     Q_PROPERTY(TextFormat textFormat READ textFormat WRITE setTextFormat NOTIFY textFormatChanged)
     Q_PROPERTY(bool readOnly READ isReadOnly WRITE setReadOnly NOTIFY readOnlyChanged)
     Q_PROPERTY(bool cursorVisible READ isCursorVisible WRITE setCursorVisible NOTIFY cursorVisibleChanged)
@@ -212,8 +214,8 @@ class Q_AUTOTEST_EXPORT QQuickTextEdit : public QQuickImplicitSizeItem
 
     QVariant inputMethodQuery(Qt::InputMethodQuery property) const;
 
-    qreal paintedWidth() const;
-    qreal paintedHeight() const;
+    qreal contentWidth() const;
+    qreal contentHeight() const;
 
     QUrl baseUrl() const;
     void setBaseUrl(const QUrl &url);
@@ -233,7 +235,7 @@ class Q_AUTOTEST_EXPORT QQuickTextEdit : public QQuickImplicitSizeItem
 
 Q_SIGNALS:
     void textChanged();
-    void paintedSizeChanged();
+    void contentSizeChanged();
     void cursorPositionChanged();
     void cursorRectangleChanged();
     void selectionStartChanged();

src/quick/items/qquicktextedit_p_p.h

@@ -133,7 +133,7 @@ class QQuickTextEditPrivate : public QQuickImplicitSizeItemPrivate
     QQuickTextEdit::SelectionMode mouseSelectionMode;
     int lineCount;
     int yoff;
-    QSize paintedSize;
+    QSize contentSize;
 
     enum NodeType {
         NodeIsNull,

src/quick/items/qquicktextinput.cpp

@@ -2251,6 +2251,32 @@ bool QQuickTextInput::canRedo() const
     return d->canRedo;
 }
 
+/*!
+    \qmlproperty real QtQuick2::TextInput::contentWidth
+
+    Returns the width of the text, including the width past the width
+    which is covered due to insufficient wrapping if \l wrapMode is set.
+*/
+
+qreal QQuickTextInput::contentWidth() const
+{
+    Q_D(const QQuickTextInput);
+    return d->boundingRect.width();
+}
+
+/*!
+    \qmlproperty real QtQuick2::TextInput::contentHeight
+
+    Returns the height of the text, including the height past the height
+    that is covered if the text does not fit within the set height.
+*/
+
+qreal QQuickTextInput::contentHeight() const
+{
+    Q_D(const QQuickTextInput);
+    return d->boundingRect.height();
+}
+
 void QQuickTextInput::moveCursorSelection(int position)
 {
     Q_D(QQuickTextInput);
@@ -2675,6 +2701,8 @@ void QQuickTextInputPrivate::updateLayout()
     if (!q->isComponentComplete())
         return;
 
+    const QRectF previousRect = boundingRect;
+
     QTextOption option = m_textLayout.textOption();
     option.setTextDirection(layoutDirection());
     option.setFlags(QTextOption::IncludeTrailingSpaces);
@@ -2709,6 +2737,8 @@ void QQuickTextInputPrivate::updateLayout()
     q->update();
     q->setImplicitSize(qCeil(boundingRect.width()), qCeil(boundingRect.height()));
 
+    if (previousRect != boundingRect)
+        emit q->contentSizeChanged();
 }
 
 #ifndef QT_NO_CLIPBOARD

src/quick/items/qquicktextinput_p.h

@@ -103,6 +103,8 @@ class Q_AUTOTEST_EXPORT QQuickTextInput : public QQuickImplicitSizeItem
     Q_PROPERTY(bool canUndo READ canUndo NOTIFY canUndoChanged)
     Q_PROPERTY(bool canRedo READ canRedo NOTIFY canRedoChanged)
     Q_PROPERTY(bool inputMethodComposing READ isInputMethodComposing NOTIFY inputMethodComposingChanged)
+    Q_PROPERTY(qreal contentWidth READ contentWidth NOTIFY contentSizeChanged)
+    Q_PROPERTY(qreal contentHeight READ contentHeight NOTIFY contentSizeChanged)
 
 public:
     QQuickTextInput(QQuickItem * parent=0);
@@ -254,6 +256,9 @@ class Q_AUTOTEST_EXPORT QQuickTextInput : public QQuickImplicitSizeItem
 
     Q_INVOKABLE QString getText(int start, int end) const;
 
+    qreal contentWidth() const;
+    qreal contentHeight() const;
+
 Q_SIGNALS:
     void textChanged();
     void cursorPositionChanged();
@@ -289,6 +294,7 @@ class Q_AUTOTEST_EXPORT QQuickTextInput : public QQuickImplicitSizeItem
     void canRedoChanged();
     void inputMethodComposingChanged();
     void effectiveHorizontalAlignmentChanged();
+    void contentSizeChanged();
 
 protected:
     virtual void geometryChanged(const QRectF &newGeometry,