Initial import from the monolithic Qt.

This is the beginning of revision history for this module. If you
want to look at revision history older than this, please refer to the
Qt Git wiki for how to use Git history grafting. At the time of
writing, this wiki is located here:

http://qt.gitorious.org/qt/pages/GitIntroductionWithQt

If you have already performed the grafting and you don't see any
history beyond this commit, try running "git log" with the "--follow"
argument.

Branched from the monolithic repo, Qt master branch, at commit
896db169ea224deb96c59ce8af800d019de63f12

1 files changed, 145 insertions, 0 deletions

diff --git a/src/designer/src/components/formeditor/widgetselection.h b/src/designer/src/components/formeditor/widgetselection.h
new file mode 100644
index 000000000..987bd4b51
--- /dev/null
+++ b/src/designer/src/components/formeditor/widgetselection.h
@@ -0,0 +1,145 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the Qt Designer of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef WIDGETSELECTION_H
+#define WIDGETSELECTION_H
+
+#include "formeditor_global.h"
+#include <invisible_widget_p.h>
+
+#include <QtCore/QHash>
+#include <QtCore/QPointer>
+
+QT_BEGIN_NAMESPACE
+
+class QDesignerFormEditorInterface;
+class QMouseEvent;
+class QPaintEvent;
+
+namespace qdesigner_internal {
+
+class FormWindow;
+class WidgetSelection;
+
+class QT_FORMEDITOR_EXPORT WidgetHandle: public InvisibleWidget
+{
+    Q_OBJECT
+public:
+    enum Type
+    {
+        LeftTop,
+        Top,
+        RightTop,
+        Right,
+        RightBottom,
+        Bottom,
+        LeftBottom,
+        Left,
+
+        TypeCount
+    };
+
+    WidgetHandle(FormWindow *parent, Type t, WidgetSelection *s);
+    void setWidget(QWidget *w);
+    void setActive(bool a);
+    void updateCursor();
+
+    void setEnabled(bool) {}
+
+    QDesignerFormEditorInterface *core() const;
+
+protected:
+    void paintEvent(QPaintEvent *e);
+    void mousePressEvent(QMouseEvent *e);
+    void mouseMoveEvent(QMouseEvent *e);
+    void mouseReleaseEvent(QMouseEvent *e);
+
+private:
+    void changeGridLayoutItemSpan();
+    void changeFormLayoutItemSpan();
+    void trySetGeometry(QWidget *w, int x, int y, int width, int height);
+    void tryResize(QWidget *w, int width, int height);
+
+private:
+    QWidget *m_widget;
+    const Type m_type;
+    QPoint m_origPressPos;
+    FormWindow *m_formWindow;
+    WidgetSelection *m_sel;
+    QRect m_geom, m_origGeom;
+    bool m_active;
+};
+
+class QT_FORMEDITOR_EXPORT WidgetSelection: public QObject
+{
+    Q_OBJECT
+public:
+    WidgetSelection(FormWindow *parent);
+
+    void setWidget(QWidget *w);
+    bool isUsed() const;
+
+    void updateActive();
+    void updateGeometry();
+    void hide();
+    void show();
+    void update();
+
+    QWidget *widget() const;
+
+    QDesignerFormEditorInterface *core() const;
+
+    virtual bool eventFilter(QObject *object, QEvent *event);
+
+    enum  WidgetState { UnlaidOut, LaidOut, ManagedGridLayout, ManagedFormLayout };
+    static WidgetState widgetState(const QDesignerFormEditorInterface *core, QWidget *w);
+
+private:
+    WidgetHandle *m_handles[WidgetHandle::TypeCount];
+    QPointer<QWidget> m_widget;
+    FormWindow *m_formWindow;
+};
+
+}  // namespace qdesigner_internal
+
+QT_END_NAMESPACE
+
+#endif // WIDGETSELECTION_H