Merge branch '4.7' of scm.dev.nokia.troll.no:qt/qt-qml into 4.7-integration

* '4.7' of scm.dev.nokia.troll.no:qt/qt-qml: (119 commits)
  Add Mac OS X bundle description for qml runtime
  Cleanup
  Disallow writes to read-only value type properties
  Allow undefined to be assigned to QVariant properties
  Add a Qt.isQtObject() method
  Fix crash in QML library imports
  Remove QT_VERSION checks in QML
  List properties aren't read-only
  Small doc fix.
  Make sure WorkerScript thread is stopped on deletion. This also fixes
  Release ListModel's worker agent on deletion.
  Doc fixes
  Fix example
  Example code style improvements
  Enable other wrapping modes.
  TextEdit::wrap changed to TextEdit::wrapMode enumeration
  Remove use of obsolete "Script" element.
  unwarn
  Replace "var" with "variant" in tests
  Fix test after deletion of GraphicsObjectContainer.
  ...

1 files changed, 82 insertions, 19 deletions

diff --git a/src/declarative/graphicsitems/qdeclarativetextinput.cpp b/src/declarative/graphicsitems/qdeclarativetextinput.cpp
index 29e43f9..1b8b84b 100644
--- a/src/declarative/graphicsitems/qdeclarativetextinput.cpp
+++ b/src/declarative/graphicsitems/qdeclarativetextinput.cpp
@@ -429,6 +429,29 @@ void QDeclarativeTextInput::setFocusOnPress(bool b)
 }
 
 /*!
+    \qmlproperty bool TextInput::autoScroll
+
+    Whether the TextInput should scroll when the text is longer than the width. By default this is
+    set to true.
+*/
+bool QDeclarativeTextInput::autoScroll() const
+{
+    Q_D(const QDeclarativeTextInput);
+    return d->autoScroll;
+}
+
+void QDeclarativeTextInput::setAutoScroll(bool b)
+{
+    Q_D(QDeclarativeTextInput);
+    if (d->autoScroll == b)
+        return;
+
+    d->autoScroll = b;
+
+    emit autoScrollChanged(d->autoScroll);
+}
+
+/*!
     \qmlproperty Validator TextInput::validator
 
     Allows you to set a validator on the TextInput. When a validator is set
@@ -449,7 +472,7 @@ void QDeclarativeTextInput::setFocusOnPress(bool b)
     input of integers between 11 and 31 into the text input:
 
     \code
-    import Qt 4.6
+    import Qt 4.7
     TextInput{
         validator: IntValidator{bottom: 11; top: 31;}
         focus: true
@@ -645,6 +668,8 @@ void QDeclarativeTextInputPrivate::focusChanged(bool hasFocus)
     Q_Q(QDeclarativeTextInput);
     focused = hasFocus;
     q->setCursorVisible(hasFocus);
+    if (!hasFocus)
+        control->deselect();
     QDeclarativeItemPrivate::focusChanged(hasFocus);
 }
 
@@ -679,7 +704,15 @@ void QDeclarativeTextInput::mousePressEvent(QGraphicsSceneMouseEvent *event)
         }
         setFocus(true);
     }
-    d->control->processEvent(event);
+    bool mark = event->modifiers() & Qt::ShiftModifier;
+    int cursor = d->xToPos(event->pos().x());
+    d->control->moveCursor(cursor, mark);
+}
+
+void QDeclarativeTextInput::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
+{
+    Q_D(QDeclarativeTextInput);
+    d->control->moveCursor(d->xToPos(event->pos().x()), true);
 }
 
 /*!
@@ -704,6 +737,7 @@ bool QDeclarativeTextInput::event(QEvent* ev)
         case QEvent::KeyPress:
         case QEvent::KeyRelease://###Should the control be doing anything with release?
         case QEvent::GraphicsSceneMousePress:
+        case QEvent::GraphicsSceneMouseMove:
         case QEvent::GraphicsSceneMouseRelease:
             break;
         default:
@@ -733,28 +767,56 @@ void QDeclarativeTextInput::drawContents(QPainter *p, const QRect &r)
     int flags = QLineControl::DrawText;
     if(!isReadOnly() && d->cursorVisible && !d->cursorItem)
         flags |= QLineControl::DrawCursor;
-    if (d->control->hasSelectedText()){
+    if (d->control->hasSelectedText())
             flags |= QLineControl::DrawSelections;
-    }
-
     QPoint offset = QPoint(0,0);
-    if(d->hAlign != AlignLeft){
-        QFontMetrics fm = QFontMetrics(d->font);
-        //###Is this using bearing appropriately?
-        int minLB = qMax(0, -fm.minLeftBearing());
-        int minRB = qMax(0, -fm.minRightBearing());
-        int widthUsed = qRound(d->control->naturalTextWidth()) + 1 + minRB;
-        int hOffset = 0;
+    QFontMetrics fm = QFontMetrics(d->font);
+    int cix = qRound(d->control->cursorToX());
+    QRect br(boundingRect().toRect());
+    //###Is this using bearing appropriately?
+    int minLB = qMax(0, -fm.minLeftBearing());
+    int minRB = qMax(0, -fm.minRightBearing());
+    int widthUsed = qRound(d->control->naturalTextWidth()) + 1 + minRB;
+    if (d->autoScroll) {
+        if ((minLB + widthUsed) <=  br.width()) {
+            // text fits in br; use hscroll for alignment
+            switch (d->hAlign & ~(Qt::AlignAbsolute|Qt::AlignVertical_Mask)) {
+            case Qt::AlignRight:
+                d->hscroll = widthUsed - br.width() + 1;
+                break;
+            case Qt::AlignHCenter:
+                d->hscroll = (widthUsed - br.width()) / 2;
+                break;
+            default:
+                // Left
+                d->hscroll = 0;
+                break;
+            }
+            d->hscroll -= minLB;
+        } else if (cix - d->hscroll >= br.width()) {
+            // text doesn't fit, cursor is to the right of br (scroll right)
+            d->hscroll = cix - br.width() + 1;
+        } else if (cix - d->hscroll < 0 && d->hscroll < widthUsed) {
+            // text doesn't fit, cursor is to the left of br (scroll left)
+            d->hscroll = cix;
+        } else if (widthUsed - d->hscroll < br.width()) {
+            // text doesn't fit, text document is to the left of br; align
+            // right
+            d->hscroll = widthUsed - br.width() + 1;
+        }
+        // the y offset is there to keep the baseline constant in case we have script changes in the text.
+        offset = br.topLeft() - QPoint(d->hscroll, d->control->ascent() - fm.ascent());
+    } else {
         if(d->hAlign == AlignRight){
-            hOffset = width() - widthUsed;
+            d->hscroll = width() - widthUsed;
         }else if(d->hAlign == AlignHCenter){
-            hOffset = (width() - widthUsed) / 2;
+            d->hscroll = (width() - widthUsed) / 2;
         }
-        hOffset -= minLB;
-        offset = QPoint(hOffset, 0);
+        d->hscroll -= minLB;
+        offset = QPoint(d->hscroll, 0);
     }
-    QRect clipRect = r;
-    d->control->draw(p, offset, clipRect, flags);
+
+    d->control->draw(p, offset, r, flags);
 
     p->restore();
 }
@@ -892,10 +954,11 @@ void QDeclarativeTextInput::q_textChanged()
 
 void QDeclarativeTextInput::updateRect(const QRect &r)
 {
+    Q_D(QDeclarativeTextInput);
     if(r == QRect())
         clearCache();
     else
-        dirtyCache(r);
+        dirtyCache(QRect(r.x() - d->hscroll, r.y(), r.width(), r.height()));
     update();
 }