Changeset 846 for trunk/src/gui/widgets/qlabel.cpp

Timestamp:

May 5, 2011, 5:36:53 AM (14 years ago)

Author:

Dmitry A. Kuminov

Message:

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.

Location:

trunk

Files:

• . (modified) (1 prop)
• src/gui/widgets/qlabel.cpp (modified) (14 diffs)

trunk/src/gui/widgets/qlabel.cpp

@@ -1 +1 @@
 /****************************************************************************
 **
-** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
 ** All rights reserved.
 ** Contact: Nokia Corporation (qt-info@nokia.com)
@@ -54 +54 @@
 #include "qlabel_p.h"
 #include "private/qstylesheetstyle_p.h"
+#include <qmath.h>
 
 QT_BEGIN_NAMESPACE
@@ -635 +636 @@
 #endif
     else if (isTextLabel) {
-        int align = QStyle::visualAlignment(q->layoutDirection(), QFlag(this->align));
+        int align = QStyle::visualAlignment(textDirection(), QFlag(this->align));
         // Add indentation
         int m = indent;
@@ -662 +663 @@
                 control->setTextWidth(-1);
             }
-            br = QRect(QPoint(0, 0), control->size().toSize());
+
+            QSizeF controlSize = control->size();
+            br = QRect(QPoint(0, 0), QSize(qCeil(controlSize.width()), qCeil(controlSize.height())));
 
             // restore state
@@ -680 +683 @@
             bool tryWidth = (w < 0) && (align & Qt::TextWordWrap);
             if (tryWidth)
-                w = fm.averageCharWidth() * 80;
+                w = qMin(fm.averageCharWidth() * 80, q->maximumSize().width());
             else if (w < 0)
                 w = 2000;
@@ -782 +785 @@
 }
 
+/*!
+    Selects text from position \a start and for \a length characters.
+
+    \sa selectedText()
+
+    \bold{Note:} The textInteractionFlags set on the label need to include
+    either TextSelectableByMouse or TextSelectableByKeyboard.
+
+    \since 4.7
+*/
+void QLabel::setSelection(int start, int length)
+{
+    Q_D(QLabel);
+    if (d->control) {
+        d->ensureTextPopulated();
+        QTextCursor cursor = d->control->textCursor();
+        cursor.setPosition(start);
+        cursor.setPosition(start + length, QTextCursor::KeepAnchor);
+        d->control->setTextCursor(cursor);
+    }
+}
+
+/*!
+    \property QLabel::hasSelectedText
+    \brief whether there is any text selected
+
+    hasSelectedText() returns true if some or all of the text has been
+    selected by the user; otherwise returns false.
+
+    By default, this property is false.
+
+    \sa selectedText()
+
+    \bold{Note:} The textInteractionFlags set on the label need to include
+    either TextSelectableByMouse or TextSelectableByKeyboard.
+
+    \since 4.7
+*/
+bool QLabel::hasSelectedText() const
+{
+    Q_D(const QLabel);
+    if (d->control)
+        return d->control->textCursor().hasSelection();
+    return false;
+}
+
+/*!
+    \property QLabel::selectedText
+    \brief the selected text
+
+    If there is no selected text this property's value is
+    an empty string.
+
+    By default, this property contains an empty string.
+
+    \sa hasSelectedText()
+
+    \bold{Note:} The textInteractionFlags set on the label need to include
+    either TextSelectableByMouse or TextSelectableByKeyboard.
+
+    \since 4.7
+*/
+QString QLabel::selectedText() const
+{
+    Q_D(const QLabel);
+    if (d->control)
+        return d->control->textCursor().selectedText();
+    return QString();
+}
+
+/*!
+    selectionStart() returns the index of the first selected character in the
+    label or -1 if no text is selected.
+
+    \sa selectedText()
+
+    \bold{Note:} The textInteractionFlags set on the label need to include
+    either TextSelectableByMouse or TextSelectableByKeyboard.
+
+    \since 4.7
+*/
+int QLabel::selectionStart() const
+{
+    Q_D(const QLabel);
+    if (d->control && d->control->textCursor().hasSelection())
+        return d->control->textCursor().selectionStart();
+    return -1;
+}
+
 /*!\reimp
 */
@@ -863 +955 @@
     }
     ev->accept();
-    menu->exec(ev->globalPos());
-    delete menu;
+    menu->setAttribute(Qt::WA_DeleteOnClose);
+    menu->popup(ev->globalPos());
 #endif
 }
@@ -968 +1060 @@
     QRect cr = contentsRect();
     cr.adjust(d->margin, d->margin, -d->margin, -d->margin);
-    int align = QStyle::visualAlignment(layoutDirection(), QFlag(d->align));
+    int align = QStyle::visualAlignment(d->isTextLabel ? d->textDirection()
+                                                       : layoutDirection(), QFlag(d->align));
 
 #ifndef QT_NO_MOVIE
@@ -1028 +1121 @@
             painter.restore();
         } else {
-            int flags = align;
+            int flags = align | (d->textDirection() == Qt::LeftToRight ? Qt::TextForceLeftToRight
+                                                                       : Qt::TextForceRightToLeft);
             if (d->hasShortcut) {
                 flags |= Qt::TextShowMnemonic;
@@ -1356 +1450 @@
     } else if (ev->type() == QEvent::ContentsRectChange) {
         d->updateLabel();
-    } else if (ev->type() == QEvent::LayoutDirectionChange) {
-        if (d->isTextLabel && d->control) {
-            d->sendControlEvent(ev);
-        }
     }
     QFrame::changeEvent(ev);
@@ -1395 +1485 @@
 }
 
+Qt::LayoutDirection QLabelPrivate::textDirection() const
+{
+    if (control) {
+        QTextOption opt = control->document()->defaultTextOption();
+        return opt.textDirection();
+    }
+
+    return text.isRightToLeft() ? Qt::RightToLeft : Qt::LeftToRight;
+}
 
 /*!
@@ -1412 +1511 @@
     QRect cr = q->contentsRect();
     cr.adjust(margin, margin, -margin, -margin);
-    const int align = QStyle::visualAlignment(q->layoutDirection(), QFlag(this->align));
+    const int align = QStyle::visualAlignment(isTextLabel ? textDirection()
+                                                          : q->layoutDirection(), QFlag(this->align));
     int m = indent;
     if (m < 0 && q->frameWidth()) // no indent, but we do have a frame
@@ -1473 +1573 @@
         return;
     ensureTextPopulated();
-    Q_Q(const QLabel);
     if (control) {
         QTextDocument *doc = control->document();
@@ -1484 +1583 @@
         else
             opt.setWrapMode(QTextOption::ManualWrap);
-
-        opt.setTextDirection(q->layoutDirection());
 
         doc->setDefaultTextOption(opt);