QmlDesigner: Add BindingIndicator

Change-Id: I46a763f87e19114e223b9eb897cbb89cf1f4c3d5
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@digia.com>

9 files changed, 402 insertions, 3 deletions

diff --git a/src/plugins/qmldesigner/components/formeditor/bindingindicator.cpp b/src/plugins/qmldesigner/components/formeditor/bindingindicator.cpp
new file mode 100644
index 0000000000..12d1e96300
--- /dev/null
+++ b/src/plugins/qmldesigner/components/formeditor/bindingindicator.cpp
@@ -0,0 +1,191 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "bindingindicator.h"
+
+#include "bindingindicatorgraphicsitem.h"
+
+#include <QLineF>
+
+namespace QmlDesigner {
+
+BindingIndicator::BindingIndicator(LayerItem *layerItem)
+    : m_layerItem(layerItem)
+{
+}
+
+BindingIndicator::BindingIndicator()
+{
+}
+
+BindingIndicator::~BindingIndicator()
+{
+    clear();
+}
+
+void BindingIndicator::show()
+{
+    if (m_indicatorTopShape)
+        m_indicatorTopShape->show();
+
+    if (m_indicatorBottomShape)
+        m_indicatorBottomShape->show();
+
+    if (m_indicatorLeftShape)
+        m_indicatorLeftShape->show();
+
+    if (m_indicatorRightShape)
+        m_indicatorRightShape->show();
+}
+
+void BindingIndicator::hide()
+{
+    if (m_indicatorTopShape)
+        m_indicatorTopShape->hide();
+
+    if (m_indicatorBottomShape)
+        m_indicatorBottomShape->hide();
+
+    if (m_indicatorLeftShape)
+        m_indicatorLeftShape->hide();
+
+    if (m_indicatorRightShape)
+        m_indicatorRightShape->hide();
+}
+
+void BindingIndicator::clear()
+{
+  delete m_indicatorTopShape;
+  delete m_indicatorBottomShape;
+  delete m_indicatorLeftShape;
+  delete m_indicatorRightShape;
+}
+
+QLineF topLine(const QmlItemNode &qmlItemNode)
+{
+    QRectF rectangle = qmlItemNode.instanceSceneTransform().mapRect(qmlItemNode.instanceBoundingRect()).adjusted(0, 1, 0, 0);
+
+    return QLineF(rectangle.topLeft(), rectangle.topRight());
+}
+
+QLineF bottomLine(const QmlItemNode &qmlItemNode)
+{
+    QRectF rectangle = qmlItemNode.instanceSceneTransform().mapRect(qmlItemNode.instanceBoundingRect());
+
+    return QLineF(rectangle.bottomLeft(), rectangle.bottomRight());
+}
+
+QLineF leftLine(const QmlItemNode &qmlItemNode)
+{
+    QRectF rectangle = qmlItemNode.instanceSceneTransform().mapRect(qmlItemNode.instanceBoundingRect()).adjusted(1, 0, 0, 0);
+
+    return QLineF(rectangle.topLeft(), rectangle.bottomLeft());
+}
+
+QLineF rightLine(const QmlItemNode &qmlItemNode)
+{
+    QRectF rectangle = qmlItemNode.instanceSceneTransform().mapRect(qmlItemNode.instanceBoundingRect());
+
+    return QLineF(rectangle.topRight(), rectangle.bottomRight());
+}
+
+void BindingIndicator::setItems(const QList<FormEditorItem *> &itemList)
+{
+    clear();
+
+    if (itemList.count() == 1) {
+        m_formEditorItem = itemList.first();
+        QmlItemNode qmlItemNode = m_formEditorItem->qmlItemNode();
+
+        if (qmlItemNode.hasBindingProperty("x")) {
+            m_indicatorTopShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+            m_indicatorTopShape->updateBindingIndicator(leftLine(qmlItemNode));
+        }
+
+        if (qmlItemNode.hasBindingProperty("y")) {
+            m_indicatorLeftShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+            m_indicatorLeftShape->updateBindingIndicator(topLine(qmlItemNode));
+        }
+
+        if (qmlItemNode.hasBindingProperty("width")) {
+            m_indicatorRightShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+            m_indicatorRightShape->updateBindingIndicator(rightLine(qmlItemNode));
+        }
+
+        if (qmlItemNode.hasBindingProperty("height")) {
+            m_indicatorBottomShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+            m_indicatorBottomShape->updateBindingIndicator(bottomLine(qmlItemNode));
+        }
+    }
+}
+
+void BindingIndicator::updateItems(const QList<FormEditorItem *> &itemList)
+{
+    foreach (FormEditorItem *formEditorItem, itemList) {
+        if (formEditorItem == m_formEditorItem) {
+            QmlItemNode qmlItemNode = m_formEditorItem->qmlItemNode();
+
+            if (qmlItemNode.hasBindingProperty("x")) {
+                if (m_indicatorTopShape.isNull())
+                    m_indicatorTopShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+                m_indicatorTopShape->updateBindingIndicator(leftLine(qmlItemNode));
+            } else {
+                delete m_indicatorTopShape;
+            }
+
+            if (qmlItemNode.hasBindingProperty("y")) {
+                if (m_indicatorLeftShape.isNull())
+                    m_indicatorLeftShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+                m_indicatorLeftShape->updateBindingIndicator(topLine(qmlItemNode));
+            } else {
+                delete m_indicatorLeftShape;
+            }
+
+            if (qmlItemNode.hasBindingProperty("width")) {
+                if (m_indicatorRightShape.isNull())
+                    m_indicatorRightShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+                m_indicatorRightShape->updateBindingIndicator(rightLine(qmlItemNode));
+            } else {
+                delete m_indicatorRightShape;
+            }
+
+            if (qmlItemNode.hasBindingProperty("height")) {
+                if (m_indicatorBottomShape.isNull())
+                    m_indicatorBottomShape = new BindingIndicatorGraphicsItem(m_layerItem.data());
+                m_indicatorBottomShape->updateBindingIndicator(bottomLine(qmlItemNode));
+            } else {
+                delete m_indicatorBottomShape;
+            }
+
+            return;
+        }
+    }
+}
+
+} // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/formeditor/bindingindicator.h b/src/plugins/qmldesigner/components/formeditor/bindingindicator.h
new file mode 100644
index 0000000000..86c728030e
--- /dev/null
+++ b/src/plugins/qmldesigner/components/formeditor/bindingindicator.h
@@ -0,0 +1,68 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef QMLDESIGNER_BINDINGINDICATOR_H
+#define QMLDESIGNER_BINDINGINDICATOR_H
+
+#include <QPointer>
+#include "layeritem.h"
+#include "formeditoritem.h"
+
+namespace QmlDesigner {
+
+class FormEditorItem;
+class BindingIndicatorGraphicsItem;
+
+class BindingIndicator
+{
+public:
+    BindingIndicator(LayerItem *layerItem);
+    BindingIndicator();
+    ~BindingIndicator();
+
+    void show();
+    void hide();
+
+    void clear();
+
+    void setItems(const QList<FormEditorItem*> &itemList);
+    void updateItems(const QList<FormEditorItem*> &itemList);
+
+private:
+    QPointer<LayerItem> m_layerItem;
+    QPointer<FormEditorItem> m_formEditorItem;
+    QPointer<BindingIndicatorGraphicsItem> m_indicatorTopShape;
+    QPointer<BindingIndicatorGraphicsItem> m_indicatorBottomShape;
+    QPointer<BindingIndicatorGraphicsItem> m_indicatorLeftShape;
+    QPointer<BindingIndicatorGraphicsItem> m_indicatorRightShape;
+};
+
+} // namespace QmlDesigner
+
+#endif // QMLDESIGNER_BINDINGINDICATOR_H
diff --git a/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.cpp b/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.cpp
new file mode 100644
index 0000000000..3876b03602
--- /dev/null
+++ b/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.cpp
@@ -0,0 +1,65 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#include "bindingindicatorgraphicsitem.h"
+
+#include <QPainter>
+
+namespace QmlDesigner {
+
+BindingIndicatorGraphicsItem::BindingIndicatorGraphicsItem(QGraphicsItem *parent) :
+    QGraphicsObject(parent)
+{
+}
+
+void BindingIndicatorGraphicsItem::paint(QPainter *painter, const QStyleOptionGraphicsItem * /*option*/, QWidget * /*widget*/)
+{
+    painter->save();
+    QPen linePen(QColor(255, 0, 0, 255), 2);
+    //linePen.setDashPattern(QVector<double>() << 3. << 2.);
+    painter->setPen(linePen);
+    painter->drawLine(m_bindingLine);
+    painter->restore();
+}
+
+QRectF BindingIndicatorGraphicsItem::boundingRect() const
+{
+    return QRectF(m_bindingLine.x1(),
+                  m_bindingLine.y1(),
+                  m_bindingLine.x2() - m_bindingLine.x1() + 3,
+                  m_bindingLine.y2() - m_bindingLine.y1() + 3);
+}
+
+void BindingIndicatorGraphicsItem::updateBindingIndicator(const QLineF &bindingLine)
+{
+    m_bindingLine = bindingLine;
+    update();
+}
+
+} // namespace QmlDesigner
diff --git a/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.h b/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.h
new file mode 100644
index 0000000000..6e259b70bd
--- /dev/null
+++ b/src/plugins/qmldesigner/components/formeditor/bindingindicatorgraphicsitem.h
@@ -0,0 +1,55 @@
+/****************************************************************************
+**
+** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/legal
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.  For licensing terms and
+** conditions see http://qt.digia.com/licensing.  For further information
+** use the contact form at http://qt.digia.com/contact-us.
+**
+** 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, Digia gives you certain additional
+** rights.  These rights are described in the Digia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+****************************************************************************/
+
+#ifndef QMLDESIGNER_BINDINGINDICATORGRAPHICSITEM_H
+#define QMLDESIGNER_BINDINGINDICATORGRAPHICSITEM_H
+
+#include <QGraphicsObject>
+
+namespace QmlDesigner {
+
+class BindingIndicatorGraphicsItem : public QGraphicsObject
+{
+    Q_OBJECT
+public:
+    explicit BindingIndicatorGraphicsItem(QGraphicsItem *parent = 0);
+
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
+    QRectF boundingRect() const;
+
+    void updateBindingIndicator(const QLineF &bindingLine);
+
+private:
+    QLineF m_bindingLine;
+
+};
+
+} // namespace QmlDesigner
+
+#endif // QMLDESIGNER_BINDINGINDICATORGRAPHICSITEM_H
diff --git a/src/plugins/qmldesigner/components/formeditor/formeditor.pri b/src/plugins/qmldesigner/components/formeditor/formeditor.pri
index 0db9cbe809..325534e372 100644
--- a/src/plugins/qmldesigner/components/formeditor/formeditor.pri
+++ b/src/plugins/qmldesigner/components/formeditor/formeditor.pri
@@ -32,7 +32,9 @@ SOURCES += formeditoritem.cpp \
     lineeditaction.cpp \
     abstractcustomtool.cpp \
     anchorindicator.cpp \
-    components/formeditor/anchorindicatorgraphicsitem.cpp
+    anchorindicatorgraphicsitem.cpp \
+    bindingindicator.cpp \
+    bindingindicatorgraphicsitem.cpp
 HEADERS += formeditorscene.h \
     formeditorwidget.h \
     formeditoritem.h \
@@ -66,5 +68,7 @@ HEADERS += formeditorscene.h \
     lineeditaction.h \
     abstractcustomtool.h \
     anchorindicator.h \
-    components/formeditor/anchorindicatorgraphicsitem.h
+    anchorindicatorgraphicsitem.h \
+    bindingindicator.h \
+    bindingindicatorgraphicsitem.h
 RESOURCES += formeditor.qrc
diff --git a/src/plugins/qmldesigner/components/formeditor/movetool.cpp b/src/plugins/qmldesigner/components/formeditor/movetool.cpp
index 0b75c262cd..a04a220c4c 100644
--- a/src/plugins/qmldesigner/components/formeditor/movetool.cpp
+++ b/src/plugins/qmldesigner/components/formeditor/movetool.cpp
@@ -47,7 +47,8 @@ MoveTool::MoveTool(FormEditorView *editorView)
     m_moveManipulator(editorView->scene()->manipulatorLayerItem(), editorView),
     m_selectionIndicator(editorView->scene()->manipulatorLayerItem()),
     m_resizeIndicator(editorView->scene()->manipulatorLayerItem()),
-    m_anchorIndicator(editorView->scene()->manipulatorLayerItem())
+    m_anchorIndicator(editorView->scene()->manipulatorLayerItem()),
+    m_bindingIndicator(editorView->scene()->manipulatorLayerItem())
 {
     m_selectionIndicator.setCursor(Qt::SizeAllCursor);
 }
@@ -65,6 +66,7 @@ void MoveTool::clear()
     m_selectionIndicator.clear();
     m_resizeIndicator.clear();
     m_anchorIndicator.clear();
+    m_bindingIndicator.clear();
 
     AbstractFormEditorTool::clear();
 }
@@ -96,6 +98,7 @@ void MoveTool::mouseMoveEvent(const QList<QGraphicsItem*> &itemList,
         //    m_selectionIndicator.hide();
         m_resizeIndicator.hide();
         m_anchorIndicator.hide();
+        m_bindingIndicator.hide();
 
         FormEditorItem *containerItem = containerFormEditorItem(itemList, m_movingItems);
         if (containerItem && view()->currentState().isBaseState()) {
@@ -154,6 +157,7 @@ void MoveTool::keyPressEvent(QKeyEvent *event)
 //        m_selectionIndicator.hide();
         m_resizeIndicator.hide();
         m_anchorIndicator.hide();
+        m_bindingIndicator.hide();
         m_moveManipulator.beginRewriterTransaction();
     }
 
@@ -187,6 +191,7 @@ void MoveTool::keyReleaseEvent(QKeyEvent *keyEvent)
 //        m_selectionIndicator.show();
         m_resizeIndicator.show();
         m_anchorIndicator.show();
+        m_bindingIndicator.show();
     }
 }
 
@@ -212,6 +217,7 @@ void MoveTool::mouseReleaseEvent(const QList<QGraphicsItem*> &itemList,
         m_selectionIndicator.show();
         m_resizeIndicator.show();
         m_anchorIndicator.show();
+        m_bindingIndicator.show();
         m_movingItems.clear();
     }
 
@@ -234,6 +240,7 @@ void MoveTool::selectedItemsChanged(const QList<FormEditorItem*> &itemList)
     m_selectionIndicator.setItems(movingItems(itemList));
     m_resizeIndicator.setItems(itemList);
     m_anchorIndicator.setItems(itemList);
+    m_bindingIndicator.setItems(itemList);
     updateMoveManipulator();
 }
 
@@ -383,6 +390,7 @@ void MoveTool::formEditorItemsChanged(const QList<FormEditorItem*> &itemList)
     m_selectionIndicator.updateItems(itemList);
     m_resizeIndicator.updateItems(itemList);
     m_anchorIndicator.updateItems(itemList);
+    m_bindingIndicator.updateItems(itemList);
 }
 
 }
diff --git a/src/plugins/qmldesigner/components/formeditor/movetool.h b/src/plugins/qmldesigner/components/formeditor/movetool.h
index e767cfa51b..6a498d7d2c 100644
--- a/src/plugins/qmldesigner/components/formeditor/movetool.h
+++ b/src/plugins/qmldesigner/components/formeditor/movetool.h
@@ -35,6 +35,7 @@
 #include "selectionindicator.h"
 #include "resizeindicator.h"
 #include "anchorindicator.h"
+#include "bindingindicator.h"
 
 
 namespace QmlDesigner {
@@ -95,6 +96,7 @@ private:
     SelectionIndicator m_selectionIndicator;
     ResizeIndicator m_resizeIndicator;
     AnchorIndicator m_anchorIndicator;
+    BindingIndicator m_bindingIndicator;
     QList<FormEditorItem*> m_movingItems;
 };
 
diff --git a/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp b/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp
index 6f49f11803..e3c6574d8c 100644
--- a/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp
+++ b/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp
@@ -49,6 +49,7 @@ SelectionTool::SelectionTool(FormEditorView *editorView)
     m_selectionIndicator(editorView->scene()->manipulatorLayerItem()),
     m_resizeIndicator(editorView->scene()->manipulatorLayerItem()),
     m_anchorIndicator(editorView->scene()->manipulatorLayerItem()),
+    m_bindingIndicator(editorView->scene()->manipulatorLayerItem()),
     m_selectOnlyContentItems(false)
 {
     m_selectionIndicator.setCursor(Qt::ArrowCursor);
@@ -260,6 +261,7 @@ void SelectionTool::clear()
     m_selectionIndicator.clear();
     m_resizeIndicator.clear();
     m_anchorIndicator.clear();
+    m_bindingIndicator.clear();
 
     AbstractFormEditorTool::clear();
 }
@@ -269,6 +271,7 @@ void SelectionTool::selectedItemsChanged(const QList<FormEditorItem*> &itemList)
     m_selectionIndicator.setItems(itemList);
     m_resizeIndicator.setItems(itemList);
     m_anchorIndicator.setItems(itemList);
+    m_bindingIndicator.setItems(itemList);
 }
 
 void SelectionTool::formEditorItemsChanged(const QList<FormEditorItem*> &itemList)
@@ -276,6 +279,7 @@ void SelectionTool::formEditorItemsChanged(const QList<FormEditorItem*> &itemLis
     m_selectionIndicator.updateItems(itemList);
     m_resizeIndicator.updateItems(itemList);
     m_anchorIndicator.updateItems(itemList);
+    m_bindingIndicator.updateItems(itemList);
 }
 
 void SelectionTool::instancesCompleted(const QList<FormEditorItem*> &/*itemList*/)
diff --git a/src/plugins/qmldesigner/components/formeditor/selectiontool.h b/src/plugins/qmldesigner/components/formeditor/selectiontool.h
index 80c1dabe69..85df5d495f 100644
--- a/src/plugins/qmldesigner/components/formeditor/selectiontool.h
+++ b/src/plugins/qmldesigner/components/formeditor/selectiontool.h
@@ -37,6 +37,7 @@
 #include "selectionindicator.h"
 #include "resizeindicator.h"
 #include "anchorindicator.h"
+#include "bindingindicator.h"
 
 #include <QTime>
 
@@ -94,6 +95,7 @@ private:
     SelectionIndicator m_selectionIndicator;
     ResizeIndicator m_resizeIndicator;
     AnchorIndicator m_anchorIndicator;
+    BindingIndicator m_bindingIndicator;
     QTime m_mousePressTimer;
     bool m_selectOnlyContentItems;
     QCursor m_cursor;