formeditorscene.cpp 10.9 KB
Newer Older
1 2 3 4
/**************************************************************************
**
** This file is part of Qt Creator
**
con's avatar
con committed
5
** Copyright (c) 2011 Nokia Corporation and/or its subsidiary(-ies).
6 7 8
**
** Contact: Nokia Corporation (qt-info@nokia.com)
**
con's avatar
con committed
9
** No Commercial Usage
10
**
con's avatar
con committed
11 12 13 14
** 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.
15 16 17 18 19 20 21 22 23 24
**
** 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.
**
con's avatar
con committed
25 26 27 28 29 30
** 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.
31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64
**
**************************************************************************/

#include "formeditorscene.h"
#include "formeditorview.h"
#include "formeditorwidget.h"
#include "formeditoritem.h"
#include "movemanipulator.h"
#include <metainfo.h>
#include <QGraphicsSceneDragDropEvent>

#include <QEvent>
#include <QGraphicsSceneMouseEvent>
#include <QGraphicsSceneHoverEvent>
#include <QGraphicsView>

#include <QApplication>
#include <QDebug>
#include <QList>

#include "formeditornodeinstanceview.h"

#include "resizehandleitem.h"
#include <QtDebug>



namespace QmlDesigner {

FormEditorScene::FormEditorScene(FormEditorWidget *view, FormEditorView *editorView)
        : QGraphicsScene(),
        m_editorView(editorView),
        m_formLayerItem(new LayerItem(this)),
        m_manipulatorLayerItem(new LayerItem(this)),
65 66
        m_paintMode(NormalMode),
        m_showBoundingRects(true)
67 68 69
{
    m_manipulatorLayerItem->setZValue(1.0);
    m_formLayerItem->setZValue(0.0);
70
    m_formLayerItem->setFlag(QGraphicsItem::ItemClipsChildrenToShape, false);
71
    view->setScene(this);
72
    setItemIndexMethod(QGraphicsScene::NoIndex);
73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132

//    setItemIndexMethod(QGraphicsScene::NoIndex);
}

FormEditorScene::~FormEditorScene()
{
    clear();  //FormEditorItems have to be cleared before destruction
              //Reason: FormEditorItems accesses FormEditorScene in destructor
}


FormEditorItem* FormEditorScene::itemForQmlItemNode(const QmlItemNode &qmlItemNode) const
{
    Q_ASSERT(hasItemForQmlItemNode(qmlItemNode));
    return m_qmlItemNodeItemHash.value(qmlItemNode);
}


QList<FormEditorItem*> FormEditorScene::itemsForQmlItemNodes(const QList<QmlItemNode> &nodeList) const
{
    QList<FormEditorItem*> itemList;
    foreach (const QmlItemNode &node, nodeList) {
        if (hasItemForQmlItemNode(node))
            itemList += itemForQmlItemNode(node);
    }

    return itemList;
}

QList<FormEditorItem*> FormEditorScene::allFormEditorItems() const
{
    return m_qmlItemNodeItemHash.values();
}

void FormEditorScene::updateAllFormEditorItems()
{
    foreach (FormEditorItem *item, allFormEditorItems()) {
        item->update();
    }
}

bool FormEditorScene::hasItemForQmlItemNode(const QmlItemNode &qmlItemNode) const
{
    return m_qmlItemNodeItemHash.contains(qmlItemNode);
}

void FormEditorScene::removeItemFromHash(FormEditorItem *item)
{
   m_qmlItemNodeItemHash.remove(item->qmlItemNode());
}


AbstractFormEditorTool* FormEditorScene::currentTool() const
{
    return m_editorView->currentTool();
}

//This method calculates the possible parent for reparent
FormEditorItem* FormEditorScene::calulateNewParent(FormEditorItem *formEditorItem)
{
133 134 135 136 137 138 139
    if (formEditorItem->qmlItemNode().isValid()) {
        QList<QGraphicsItem *> list = items(formEditorItem->qmlItemNode().instanceBoundingRect().center());
        foreach (QGraphicsItem *graphicsItem, list) {
            if (qgraphicsitem_cast<FormEditorItem*>(graphicsItem) &&
                graphicsItem->collidesWithItem(formEditorItem, Qt::ContainsItemShape))
                return qgraphicsitem_cast<FormEditorItem*>(graphicsItem);
        }
140
    }
141

142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158
    return 0;
}

void FormEditorScene::synchronizeTransformation(const QmlItemNode &qmlItemNode)
{
    FormEditorItem *item = itemForQmlItemNode(qmlItemNode);
    item->updateGeometry();

    if (qmlItemNode.isRootNode()) {
        formLayerItem()->update();
        manipulatorLayerItem()->update();
    }
}

void FormEditorScene::synchronizeParent(const QmlItemNode &qmlItemNode)
{
    QmlItemNode parentNode = qmlItemNode.instanceParent().toQmlItemNode();
159
    reparentItem(qmlItemNode, parentNode);
160 161
}

162
void FormEditorScene::synchronizeOtherProperty(const QmlItemNode &qmlItemNode, const QString &propertyName)
163 164 165
{
    if (hasItemForQmlItemNode(qmlItemNode)) {
        FormEditorItem *item = itemForQmlItemNode(qmlItemNode);
166 167 168 169

        if (propertyName == "opacity")
            item->setOpacity(qmlItemNode.instanceValue("opacity").toDouble());

Marco Bubke's avatar
Marco Bubke committed
170 171 172
        if (propertyName == "clip")
            item->setFlag(QGraphicsItem::ItemClipsChildrenToShape, qmlItemNode.instanceValue("clip").toBool());

173 174 175
        if (propertyName == "visible")
            item->setContentVisible(qmlItemNode.instanceValue("visible").toBool());

176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195
    }
}

void FormEditorScene::synchronizeState(const QmlItemNode &qmlItemNode)
{
    if (hasItemForQmlItemNode(qmlItemNode)) {
        FormEditorItem *item = itemForQmlItemNode(qmlItemNode);
        if (item)
            item->update();
    }
}


FormEditorItem *FormEditorScene::addFormEditorItem(const QmlItemNode &qmlItemNode)
{
    FormEditorItem *formEditorItem = new FormEditorItem(qmlItemNode, this);
    Q_ASSERT(!m_qmlItemNodeItemHash.contains(qmlItemNode));

    m_qmlItemNodeItemHash.insert(qmlItemNode, formEditorItem);
    if (qmlItemNode.isRootNode()) {
196 197
        formLayerItem()->update();
        manipulatorLayerItem()->update();
198 199
    }

200 201


202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333
    return formEditorItem;
}


void FormEditorScene::dropEvent(QGraphicsSceneDragDropEvent * event)
{
    currentTool()->dropEvent(event);

    if (views().first())
        views().first()->setFocus();
}

void FormEditorScene::dragEnterEvent(QGraphicsSceneDragDropEvent * event)
{
    currentTool()->dragEnterEvent(event);
}

void FormEditorScene::dragLeaveEvent(QGraphicsSceneDragDropEvent * event)
{
    currentTool()->dragLeaveEvent(event);

    return;
}

void FormEditorScene::dragMoveEvent(QGraphicsSceneDragDropEvent * event)
{
    currentTool()->dragMoveEvent(event);
}

QList<QGraphicsItem *> FormEditorScene::removeLayerItems(const QList<QGraphicsItem *> &itemList)
{
    QList<QGraphicsItem *> itemListWithoutLayerItems;

    foreach (QGraphicsItem *item, itemList)
        if (item != manipulatorLayerItem() && item != formLayerItem())
            itemListWithoutLayerItems.append(item);

    return itemListWithoutLayerItems;
}

void FormEditorScene::mousePressEvent(QGraphicsSceneMouseEvent *event)
{
    currentTool()->mousePressEvent(removeLayerItems(items(event->scenePos())), event);
}

void FormEditorScene::mouseMoveEvent(QGraphicsSceneMouseEvent *event)
{
    if (event->buttons())
        currentTool()->mouseMoveEvent(removeLayerItems(items(event->scenePos())), event);
    else
        currentTool()->hoverMoveEvent(removeLayerItems(items(event->scenePos())), event);

    event->accept();
}

void FormEditorScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
{
    currentTool()->mouseReleaseEvent(removeLayerItems(items(event->scenePos())), event);

    event->accept();
 }

void FormEditorScene::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event)
{
    currentTool()->mouseDoubleClickEvent(removeLayerItems(items(event->scenePos())), event);

    event->accept();
}

void FormEditorScene::keyPressEvent(QKeyEvent *keyEvent)
{
    currentTool()->keyPressEvent(keyEvent);
}

void FormEditorScene::keyReleaseEvent(QKeyEvent *keyEvent)
{
    currentTool()->keyReleaseEvent(keyEvent);
}

FormEditorView *FormEditorScene::editorView() const
{
   return m_editorView;
}

LayerItem* FormEditorScene::manipulatorLayerItem() const
{
    return m_manipulatorLayerItem.data();
}

LayerItem* FormEditorScene::formLayerItem() const
{
    return m_formLayerItem.data();
}

bool FormEditorScene::event(QEvent * event)
{
    switch(event->type())
    {
        case QEvent::GraphicsSceneHoverEnter :
            hoverEnterEvent(static_cast<QGraphicsSceneHoverEvent *>(event));
            return true;
        case QEvent::GraphicsSceneHoverMove :
            hoverMoveEvent(static_cast<QGraphicsSceneHoverEvent *>(event));
            return true;
        case QEvent::GraphicsSceneHoverLeave :
            hoverLeaveEvent(static_cast<QGraphicsSceneHoverEvent *>(event));
            return true;
        default: return QGraphicsScene::event(event);
    }

}

void FormEditorScene::hoverEnterEvent(QGraphicsSceneHoverEvent * /*event*/)
{
    qDebug() << __FUNCTION__;
}

void FormEditorScene::hoverMoveEvent(QGraphicsSceneHoverEvent * /*event*/)
{
    qDebug() << __FUNCTION__;
}

void FormEditorScene::hoverLeaveEvent(QGraphicsSceneHoverEvent * /*event*/)
{
    qDebug() << __FUNCTION__;
}


void FormEditorScene::reparentItem(const QmlItemNode &node, const QmlItemNode &newParent)
{
    Q_ASSERT(hasItemForQmlItemNode(node));
    FormEditorItem *item = itemForQmlItemNode(node);
334 335
    FormEditorItem *parentItem = 0;
    if (newParent.isValid() && hasItemForQmlItemNode(newParent))
336
        parentItem = itemForQmlItemNode(newParent);
337

338 339
    item->setParentItem(0);
    item->setParentItem(parentItem);
340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362
}

FormEditorItem* FormEditorScene::rootFormEditorItem() const
{
    QList<QGraphicsItem*> childItemList(m_formLayerItem->childItems());
    if (!childItemList.isEmpty())
        return FormEditorItem::fromQGraphicsItem(childItemList.first());

    return 0;
}

FormEditorScene::PaintMode FormEditorScene::paintMode() const
{
    return m_paintMode;
}

void FormEditorScene::setPaintMode(PaintMode paintMode)
{
    m_paintMode = paintMode;
}

void FormEditorScene::clearFormEditorItems()
{
363 364 365
    QList<QGraphicsItem*> itemList(items());

    foreach (QGraphicsItem *item, itemList) {
366
        if (qgraphicsitem_cast<FormEditorItem* >(item)) {
367
            item->setParentItem(0);
368
        }
369 370 371
    }

    foreach (QGraphicsItem *item, itemList) {
372 373 374 375 376
        if (qgraphicsitem_cast<FormEditorItem* >(item))
            delete item;
    }
}

377 378 379 380 381 382 383 384 385 386
void FormEditorScene::highlightBoundingRect(FormEditorItem *highlighItem)
{
    foreach(FormEditorItem *item, allFormEditorItems()) {
        if (item == highlighItem)
            item->setHighlightBoundingRect(true);
        else
            item->setHighlightBoundingRect(false);
    }
}

387 388 389 390 391 392 393 394 395 396 397
void FormEditorScene::setShowBoundingRects(bool show)
{
    m_showBoundingRects = show;
    updateAllFormEditorItems();
}

bool FormEditorScene::showBoundingRects() const
{
    return m_showBoundingRects;
}

398 399
}