New QmlDesigner plugin & Design mode

This adds a new "Design" mode that can be used to manipulate qml files
in a visual way. It will only get build if you have the declarativeui
module in Qt.

This is a squashed import from the Bauhaus project. Share & enjoy :)

1 files changed, 280 insertions, 0 deletions

diff --git a/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp b/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp
new file mode 100644
index 0000000000..a3e7c1ee60
--- /dev/null
+++ b/src/plugins/qmldesigner/components/formeditor/selectiontool.cpp
@@ -0,0 +1,280 @@
+/**************************************************************************
+**
+** This file is part of Qt Creator
+**
+** Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies).
+**
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** Commercial Usage
+**
+** Licensees holding valid Qt Commercial licenses may use this file in
+** accordance with the Qt Commercial License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Nokia.
+**
+** 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at http://qt.nokia.com/contact.
+**
+**************************************************************************/
+
+#include "selectiontool.h"
+#include "formeditorscene.h"
+#include "formeditorview.h"
+
+#include "resizehandleitem.h"
+
+
+#include <QApplication>
+#include <QGraphicsSceneMouseEvent>
+#include <QtDebug>
+#include <QClipboard>
+
+namespace QmlDesigner {
+
+SelectionTool::SelectionTool(FormEditorView *editorView)
+    : AbstractFormEditorTool(editorView),
+    m_rubberbandSelectionManipulator(editorView->scene()->manipulatorLayerItem(), editorView),
+    m_singleSelectionManipulator(editorView),
+    m_selectionIndicator(editorView->scene()->manipulatorLayerItem()),
+    m_resizeIndicator(editorView->scene()->manipulatorLayerItem())
+
+{
+//    view()->setCursor(Qt::CrossCursor);
+}
+
+
+SelectionTool::~SelectionTool()
+{
+}
+
+void SelectionTool::mousePressEvent(const QList<QGraphicsItem*> &itemList,
+                                    QGraphicsSceneMouseEvent *event)
+{
+    m_mousePressTimer.start();
+    FormEditorItem* formEditorItem = topFormEditorItem(itemList);
+    if (formEditorItem && !formEditorItem->qmlItemNode().hasChildren()) {
+        m_singleSelectionManipulator.begin(event->scenePos());
+
+        if (event->modifiers().testFlag(Qt::ControlModifier))
+            m_singleSelectionManipulator.select(SingleSelectionManipulator::RemoveFromSelection);
+        else if (event->modifiers().testFlag(Qt::ShiftModifier))
+            m_singleSelectionManipulator.select(SingleSelectionManipulator::AddToSelection);
+        else
+            m_singleSelectionManipulator.select(SingleSelectionManipulator::InvertSelection);
+    } else {
+        if (event->modifiers().testFlag(Qt::AltModifier)) {
+            m_singleSelectionManipulator.begin(event->scenePos());
+
+            if (event->modifiers().testFlag(Qt::ControlModifier))
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::RemoveFromSelection);
+            else if (event->modifiers().testFlag(Qt::ShiftModifier))
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::AddToSelection);
+            else
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::InvertSelection);
+
+            m_singleSelectionManipulator.end(event->scenePos());
+            view()->changeToMoveTool(event->scenePos());
+        } else {
+            m_rubberbandSelectionManipulator.begin(event->scenePos());
+        }
+    }
+}
+
+void SelectionTool::mouseMoveEvent(const QList<QGraphicsItem*> &/*itemList*/,
+                                   QGraphicsSceneMouseEvent *event)
+{
+    if (m_singleSelectionManipulator.isActive()) {
+        QPointF mouseMovementVector = m_singleSelectionManipulator.beginPoint() - event->scenePos();
+        if ((mouseMovementVector.toPoint().manhattanLength() > QApplication::startDragDistance())
+            && (m_mousePressTimer.elapsed() > QApplication::startDragTime())) {
+            m_singleSelectionManipulator.end(event->scenePos());
+            view()->changeToMoveTool(m_singleSelectionManipulator.beginPoint());
+            return;
+        }
+    } else if (m_rubberbandSelectionManipulator.isActive()) {
+        QPointF mouseMovementVector = m_rubberbandSelectionManipulator.beginPoint() - event->scenePos();
+        if ((mouseMovementVector.toPoint().manhattanLength() > QApplication::startDragDistance())
+            && (m_mousePressTimer.elapsed() > QApplication::startDragTime())) {
+            m_rubberbandSelectionManipulator.update(event->scenePos());
+
+            if (event->modifiers().testFlag(Qt::ControlModifier))
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::RemoveFromSelection);
+            else if (event->modifiers().testFlag(Qt::ShiftModifier))
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::AddToSelection);
+            else
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::ReplaceSelection);
+        }
+    }
+}
+
+void SelectionTool::hoverMoveEvent(const QList<QGraphicsItem*> &itemList,
+                        QGraphicsSceneMouseEvent * /*event*/)
+{
+    if (itemList.isEmpty())
+        return;
+
+    ResizeHandleItem* resizeHandle = ResizeHandleItem::fromGraphicsItem(itemList.first());
+    if (resizeHandle) {
+        view()->changeToResizeTool();
+        return;
+    }
+
+    if (topSelectedItemIsMovable(itemList))
+        view()->changeToMoveTool();
+}
+
+void SelectionTool::mouseReleaseEvent(const QList<QGraphicsItem*> &/*itemList*/,
+                                      QGraphicsSceneMouseEvent *event)
+{
+    if (m_singleSelectionManipulator.isActive()) {
+        qDebug() << __FUNCTION__ << "single";
+        m_singleSelectionManipulator.end(event->scenePos());
+    }
+    else if (m_rubberbandSelectionManipulator.isActive()) {
+
+        QPointF mouseMovementVector = m_rubberbandSelectionManipulator.beginPoint() - event->scenePos();
+        if (mouseMovementVector.toPoint().manhattanLength() < QApplication::startDragDistance()) {
+            m_singleSelectionManipulator.begin(event->scenePos());
+
+            if (event->modifiers().testFlag(Qt::ControlModifier))
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::RemoveFromSelection);
+            else if (event->modifiers().testFlag(Qt::ShiftModifier))
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::AddToSelection);
+            else
+                m_singleSelectionManipulator.select(SingleSelectionManipulator::InvertSelection);
+
+            m_singleSelectionManipulator.end(event->scenePos());
+        } else {
+            m_rubberbandSelectionManipulator.update(event->scenePos());
+
+            if (event->modifiers().testFlag(Qt::ControlModifier))
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::RemoveFromSelection);
+            else if (event->modifiers().testFlag(Qt::ShiftModifier))
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::AddToSelection);
+            else
+                m_rubberbandSelectionManipulator.select(RubberBandSelectionManipulator::ReplaceSelection);
+
+            m_rubberbandSelectionManipulator.end();
+        }
+    }
+
+}
+
+void SelectionTool::mouseDoubleClickEvent(const QList<QGraphicsItem*> &/*itemList*/,
+                                          QGraphicsSceneMouseEvent * /*event*/)
+{
+
+}
+
+void SelectionTool::keyPressEvent(QKeyEvent *event)
+{
+    switch(event->key()) {
+        case Qt::Key_Left:
+        case Qt::Key_Right:
+        case Qt::Key_Up:
+        case Qt::Key_Down:
+            view()->changeToMoveTool();
+            view()->currentTool()->keyPressEvent(event);
+            break;
+        case Qt::Key_C:
+            if (event->modifiers().testFlag(Qt::ControlModifier)) {
+                copySelectedNodeToClipBoard();
+                break;
+            }
+        case Qt::Key_V:
+            if (event->modifiers().testFlag(Qt::ControlModifier)) {
+                pasteClipBoard();
+                break;
+            }
+        case Qt::Key_X:
+            if (event->modifiers().testFlag(Qt::ControlModifier)) {
+                cutSelectedNodeToClipBoard();
+                break;
+            }
+    }
+}
+
+void SelectionTool::keyReleaseEvent(QKeyEvent * /*keyEvent*/)
+{
+
+}
+
+void SelectionTool::copySelectedNodeToClipBoard()
+{
+    // QClipboard *clipboard = QApplication::clipboard();
+}
+
+void SelectionTool::cutSelectedNodeToClipBoard()
+{
+    // QClipboard *clipboard = QApplication::clipboard();
+}
+
+void SelectionTool::pasteClipBoard()
+{
+    // QClipboard *clipboard = QApplication::clipboard();
+}
+
+void SelectionTool::itemsAboutToRemoved(const QList<FormEditorItem*> &/*itemList*/)
+{
+
+}
+
+//QVariant SelectionTool::itemChange(const QList<QGraphicsItem*> &itemList,
+//                                           QGraphicsItem::GraphicsItemChange change,
+//                                           const QVariant &value )
+//{
+//    qDebug() << Q_FUNC_INFO;
+//    return QVariant();
+//}
+
+//void SelectionTool::update()
+//{
+//
+//}
+
+
+void SelectionTool::clear()
+{
+    m_rubberbandSelectionManipulator.clear(),
+    m_singleSelectionManipulator.clear();
+    m_selectionIndicator.clear();
+    m_resizeIndicator.clear();
+}
+
+void SelectionTool::selectedItemsChanged(const QList<FormEditorItem*> &itemList)
+{
+    m_selectionIndicator.setItems(itemList);
+    m_resizeIndicator.setItems(itemList);
+}
+
+void SelectionTool::formEditorItemsChanged(const QList<FormEditorItem*> &itemList)
+{
+    m_selectionIndicator.updateItems(itemList);
+    m_resizeIndicator.updateItems(itemList);
+}
+
+void SelectionTool::selectUnderPoint(QGraphicsSceneMouseEvent *event)
+{
+    m_singleSelectionManipulator.begin(event->scenePos());
+
+    if (event->modifiers().testFlag(Qt::ControlModifier))
+        m_singleSelectionManipulator.select(SingleSelectionManipulator::RemoveFromSelection);
+    else if (event->modifiers().testFlag(Qt::ShiftModifier))
+        m_singleSelectionManipulator.select(SingleSelectionManipulator::AddToSelection);
+    else
+        m_singleSelectionManipulator.select(SingleSelectionManipulator::ReplaceSelection);
+
+    m_singleSelectionManipulator.end(event->scenePos());
+}
+
+}