projectmodels.cpp 28.1 KB
Newer Older
hjk's avatar
hjk committed
1
/****************************************************************************
con's avatar
con committed
2
**
hjk's avatar
hjk committed
3 4
** Copyright (C) 2012 Digia Plc and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/legal
con's avatar
con committed
5
**
hjk's avatar
hjk committed
6
** This file is part of Qt Creator.
con's avatar
con committed
7
**
hjk's avatar
hjk committed
8 9 10 11 12 13 14
** 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.
15
**
16
** GNU Lesser General Public License Usage
hjk's avatar
hjk committed
17 18 19 20 21 22 23 24 25
** 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
con's avatar
con committed
26 27
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
**
hjk's avatar
hjk committed
28
****************************************************************************/
hjk's avatar
hjk committed
29

con's avatar
con committed
30
#include "projectmodels.h"
hjk's avatar
hjk committed
31 32

#include "project.h"
con's avatar
con committed
33
#include "projectexplorerconstants.h"
34
#include "projectnodes.h"
dt's avatar
dt committed
35
#include "projectexplorer.h"
con's avatar
con committed
36 37

#include <coreplugin/fileiconprovider.h>
hjk's avatar
hjk committed
38 39
#include <utils/qtcassert.h>

40 41
#include <QDebug>
#include <QFileInfo>
con's avatar
con committed
42

43 44
#include <QFont>
#include <QIcon>
con's avatar
con committed
45 46 47 48 49 50

using namespace ProjectExplorer;
using namespace ProjectExplorer::Internal;
using Core::FileIconProvider;

namespace {
hjk's avatar
hjk committed
51 52

// sorting helper function
dt's avatar
dt committed
53

hjk's avatar
hjk committed
54 55 56 57 58 59 60 61 62 63 64 65 66 67 68
bool sortNodes(Node *n1, Node *n2)
{
    // Ordering is: project files, project, folder, file

    const NodeType n1Type = n1->nodeType();
    const NodeType n2Type = n2->nodeType();

    // project files
    FileNode *file1 = qobject_cast<FileNode*>(n1);
    FileNode *file2 = qobject_cast<FileNode*>(n2);
    if (file1 && file1->fileType() == ProjectFileType) {
        if (file2 && file2->fileType() == ProjectFileType) {
            const QString fileName1 = QFileInfo(file1->path()).fileName();
            const QString fileName2 = QFileInfo(file2->path()).fileName();

69
            int result = caseFriendlyCompare(fileName1, fileName2);
dt's avatar
dt committed
70
            if (result != 0)
dt's avatar
dt committed
71
                return result < 0;
hjk's avatar
hjk committed
72 73
            else
                return file1 < file2;
con's avatar
con committed
74
        } else {
hjk's avatar
hjk committed
75 76 77 78 79
            return true; // project file is before everything else
        }
    } else {
        if (file2 && file2->fileType() == ProjectFileType) {
            return false;
con's avatar
con committed
80
        }
hjk's avatar
hjk committed
81
    }
con's avatar
con committed
82

hjk's avatar
hjk committed
83 84 85 86 87
    // projects
    if (n1Type == ProjectNodeType) {
        if (n2Type == ProjectNodeType) {
            ProjectNode *project1 = static_cast<ProjectNode*>(n1);
            ProjectNode *project2 = static_cast<ProjectNode*>(n2);
con's avatar
con committed
88

89
            int result = caseFriendlyCompare(project1->displayName(), project2->displayName());
dt's avatar
dt committed
90
            if (result != 0)
dt's avatar
dt committed
91
                return result < 0;
hjk's avatar
hjk committed
92 93 94 95 96 97 98 99
            else
                return project1 < project2; // sort by pointer value
        } else {
           return true; // project is before folder & file
       }
    }
    if (n2Type == ProjectNodeType)
        return false;
con's avatar
con committed
100

101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123
    if (n1Type == VirtualFolderNodeType) {
        if (n2Type == VirtualFolderNodeType) {
            VirtualFolderNode *folder1 = static_cast<VirtualFolderNode *>(n1);
            VirtualFolderNode *folder2 = static_cast<VirtualFolderNode *>(n2);

            if (folder1->priority() > folder2->priority())
                return true;
            if (folder1->priority() < folder2->priority())
                return false;
            int result = caseFriendlyCompare(folder1->path(), folder2->path());
            if (result != 0)
                return result < 0;
            else
                return folder1 < folder2;
        } else {
            return true; // virtual folder is before folder
        }
    }

    if (n2Type == VirtualFolderNodeType)
        return false;


hjk's avatar
hjk committed
124 125 126 127
    if (n1Type == FolderNodeType) {
        if (n2Type == FolderNodeType) {
            FolderNode *folder1 = static_cast<FolderNode*>(n1);
            FolderNode *folder2 = static_cast<FolderNode*>(n2);
con's avatar
con committed
128

129
            int result = caseFriendlyCompare(folder1->path(), folder2->path());
dt's avatar
dt committed
130
            if (result != 0)
dt's avatar
dt committed
131
                return result < 0;
hjk's avatar
hjk committed
132 133 134 135
            else
                return folder1 < folder2;
        } else {
            return true; // folder is before file
con's avatar
con committed
136
        }
hjk's avatar
hjk committed
137 138 139
    }
    if (n2Type == FolderNodeType)
        return false;
con's avatar
con committed
140

hjk's avatar
hjk committed
141 142 143 144
    // must be file nodes
    {
        const QString filePath1 = n1->path();
        const QString filePath2 = n2->path();
con's avatar
con committed
145

hjk's avatar
hjk committed
146 147
        const QString fileName1 = QFileInfo(filePath1).fileName();
        const QString fileName2 = QFileInfo(filePath2).fileName();
con's avatar
con committed
148

149
        int result = caseFriendlyCompare(fileName1, fileName2);
dt's avatar
dt committed
150
        if (result != 0) {
dt's avatar
dt committed
151
            return result < 0; // sort by filename
hjk's avatar
hjk committed
152
        } else {
153
            result = caseFriendlyCompare(filePath1, filePath2);
dt's avatar
dt committed
154
            if (result != 0) {
dt's avatar
dt committed
155
                return result < 0; // sort by filepath
con's avatar
con committed
156
            } else {
hjk's avatar
hjk committed
157
                return n1 < n2; // sort by pointer value
con's avatar
con committed
158 159 160
            }
        }
    }
hjk's avatar
hjk committed
161
    return false;
con's avatar
con committed
162 163
}

hjk's avatar
hjk committed
164 165
} // namespace anon

con's avatar
con committed
166 167
FlatModel::FlatModel(SessionNode *rootNode, QObject *parent)
        : QAbstractItemModel(parent),
168
          m_filterProjects(false),
con's avatar
con committed
169 170 171 172 173 174 175 176
          m_filterGeneratedFiles(true),
          m_rootNode(rootNode),
          m_startupProject(0),
          m_parentFolderForChange(0)
{
    NodesWatcher *watcher = new NodesWatcher(this);
    m_rootNode->registerWatcher(watcher);

177
    connect(watcher, SIGNAL(aboutToChangeHasBuildTargets(ProjectExplorer::ProjectNode*)),
178 179 180 181 182
            this, SLOT(aboutToHasBuildTargetsChanged(ProjectExplorer::ProjectNode*)));

    connect(watcher, SIGNAL(hasBuildTargetsChanged(ProjectExplorer::ProjectNode*)),
            this, SLOT(hasBuildTargetsChanged(ProjectExplorer::ProjectNode*)));

Robert Loehning's avatar
Robert Loehning committed
183 184
    connect(watcher, SIGNAL(foldersAboutToBeAdded(FolderNode*,QList<FolderNode*>)),
            this, SLOT(foldersAboutToBeAdded(FolderNode*,QList<FolderNode*>)));
con's avatar
con committed
185 186 187
    connect(watcher, SIGNAL(foldersAdded()),
            this, SLOT(foldersAdded()));

Robert Loehning's avatar
Robert Loehning committed
188 189
    connect(watcher, SIGNAL(foldersAboutToBeRemoved(FolderNode*,QList<FolderNode*>)),
            this, SLOT(foldersAboutToBeRemoved(FolderNode*,QList<FolderNode*>)));
con's avatar
con committed
190 191 192
    connect(watcher, SIGNAL(foldersRemoved()),
            this, SLOT(foldersRemoved()));

Robert Loehning's avatar
Robert Loehning committed
193 194
    connect(watcher, SIGNAL(filesAboutToBeAdded(FolderNode*,QList<FileNode*>)),
            this, SLOT(filesAboutToBeAdded(FolderNode*,QList<FileNode*>)));
con's avatar
con committed
195 196 197
    connect(watcher, SIGNAL(filesAdded()),
            this, SLOT(filesAdded()));

Robert Loehning's avatar
Robert Loehning committed
198 199
    connect(watcher, SIGNAL(filesAboutToBeRemoved(FolderNode*,QList<FileNode*>)),
            this, SLOT(filesAboutToBeRemoved(FolderNode*,QList<FileNode*>)));
con's avatar
con committed
200 201 202 203 204 205 206 207 208 209 210
    connect(watcher, SIGNAL(filesRemoved()),
            this, SLOT(filesRemoved()));
}

QModelIndex FlatModel::index(int row, int column, const QModelIndex &parent) const
{
    QModelIndex result;
    if (!parent.isValid() && row == 0 && column == 0) { // session
        result = createIndex(0, 0, m_rootNode);
    } else if (parent.isValid() && column == 0) {
        FolderNode *parentNode = qobject_cast<FolderNode*>(nodeForIndex(parent));
dt's avatar
dt committed
211
        Q_ASSERT(parentNode);
con's avatar
con committed
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
        QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(parentNode);
        if (it == m_childNodes.constEnd()) {
            fetchMore(parentNode);
            it = m_childNodes.constFind(parentNode);
        }

        if (row < it.value().size())
            result = createIndex(row, 0, it.value().at(row));
    }
//    qDebug() << "index of " << row << column << parent.data(Project::FilePathRole) << " is " << result.data(Project::FilePathRole);
    return result;
}

QModelIndex FlatModel::parent(const QModelIndex &idx) const
{
    QModelIndex parentIndex;
    if (Node *node = nodeForIndex(idx)) {
        FolderNode *parentNode = visibleFolderNode(node->parentFolderNode());
        if (parentNode) {
            FolderNode *grandParentNode = visibleFolderNode(parentNode->parentFolderNode());
            if (grandParentNode) {
                QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(grandParentNode);
                if (it == m_childNodes.constEnd()) {
                    fetchMore(grandParentNode);
                    it = m_childNodes.constFind(grandParentNode);
                }
dt's avatar
dt committed
238
                Q_ASSERT(it != m_childNodes.constEnd());
con's avatar
con committed
239
                const int row = it.value().indexOf(parentNode);
dt's avatar
dt committed
240
                Q_ASSERT(row >= 0);
con's avatar
con committed
241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260
                parentIndex = createIndex(row, 0, parentNode);
            } else {
                // top level node, parent is session
                parentIndex = index(0, 0, QModelIndex());
            }
        }
    }

//    qDebug() << "parent of " << idx.data(Project::FilePathRole) << " is " << parentIndex.data(Project::FilePathRole);

    return parentIndex;
}

QVariant FlatModel::data(const QModelIndex &index, int role) const
{
    QVariant result;

    if (Node *node = nodeForIndex(index)) {
        FolderNode *folderNode = qobject_cast<FolderNode*>(node);
        switch (role) {
261 262 263 264 265 266 267 268
        case Qt::DisplayRole: {
            QString name = node->displayName();

            if (node->parentFolderNode()
                    && node->parentFolderNode()->nodeType() == SessionNodeType) {
                const QString vcsTopic = node->vcsTopic();

                if (!vcsTopic.isEmpty())
269
                    name += QLatin1String(" (") + vcsTopic + QLatin1Char(')');
270 271 272 273 274
            }

            result = name;
            break;
        }
con's avatar
con committed
275
        case Qt::EditRole: {
276
            result = node->displayName();
con's avatar
con committed
277 278 279
            break;
        }
        case Qt::ToolTipRole: {
280
            result = node->tooltip();
con's avatar
con committed
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
            break;
        }
        case Qt::DecorationRole: {
            if (folderNode)
                result = folderNode->icon();
            else
                result = FileIconProvider::instance()->icon(QFileInfo(node->path()));
            break;
        }
        case Qt::FontRole: {
            QFont font;
            if (node == m_startupProject)
                font.setBold(true);
            result = font;
            break;
        }
        case ProjectExplorer::Project::FilePathRole: {
            result = node->path();
            break;
        }
        }
    }

    return result;
}

dt's avatar
dt committed
307 308 309 310 311 312 313
Qt::ItemFlags FlatModel::flags(const QModelIndex &index) const
{
    if (!index.isValid())
        return 0;
    // We claim that everything is editable
    // That's slightly wrong
    // We control the only view, and that one does the checks
314 315 316 317 318 319 320 321 322
    Qt::ItemFlags f = Qt::ItemIsSelectable|Qt::ItemIsEnabled;
    if (Node *node = nodeForIndex(index)) {
        if (!qobject_cast<ProjectNode *>(node)) {
            // either folder or file node
            if (node->projectNode()->supportedActions(node).contains(ProjectNode::Rename))
                f = f | Qt::ItemIsEditable;
        }
    }
    return f;
dt's avatar
dt committed
323 324 325 326 327 328 329 330 331 332 333 334 335
}

bool FlatModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
    if (!index.isValid())
        return false;
    if (role != Qt::EditRole)
        return false;

    ProjectExplorerPlugin::instance()->renameFile(nodeForIndex(index), value.toString());
    return true;
}

con's avatar
con committed
336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436
int FlatModel::rowCount(const QModelIndex &parent) const
{
    int rows = 0;
    if (!parent.isValid()) {
        rows = 1;
    } else {
        FolderNode *folderNode = qobject_cast<FolderNode*>(nodeForIndex(parent));
        if (folderNode && m_childNodes.contains(folderNode))
            rows = m_childNodes.value(folderNode).size();
    }
    return rows;
}

int FlatModel::columnCount(const QModelIndex &/*parent*/) const
{
    return 1;
}

bool FlatModel::hasChildren(const QModelIndex &parent) const
{
    if (!parent.isValid())
        return true;

    FolderNode *folderNode = qobject_cast<FolderNode*>(nodeForIndex(parent));
    if (!folderNode)
        return false;

    QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(folderNode);
    if (it == m_childNodes.constEnd()) {
        fetchMore(folderNode);
        it = m_childNodes.constFind(folderNode);
    }
    return !it.value().isEmpty();
}

bool FlatModel::canFetchMore(const QModelIndex & parent) const
{
    if (!parent.isValid()) {
        return false;
    } else {
        if (FolderNode *folderNode = qobject_cast<FolderNode*>(nodeForIndex(parent)))
            return !m_childNodes.contains(folderNode);
        else
            return false;
    }
}

void FlatModel::recursiveAddFolderNodes(FolderNode *startNode, QList<Node *> *list, const QSet<Node *> &blackList) const
{
    foreach (FolderNode *folderNode, startNode->subFolderNodes()) {
        if (folderNode && !blackList.contains(folderNode))
            recursiveAddFolderNodesImpl(folderNode, list, blackList);
    }
}

void FlatModel::recursiveAddFolderNodesImpl(FolderNode *startNode, QList<Node *> *list, const QSet<Node *> &blackList) const
{
    if (!filter(startNode)) {
        if (!blackList.contains(startNode))
            list->append(startNode);
    } else {
        foreach (FolderNode *folderNode, startNode->subFolderNodes()) {
            if (folderNode && !blackList.contains(folderNode))
                recursiveAddFolderNodesImpl(folderNode, list, blackList);
        }
    }
}

void FlatModel::recursiveAddFileNodes(FolderNode *startNode, QList<Node *> *list, const QSet<Node *> &blackList) const
{
    foreach (FolderNode *subFolderNode, startNode->subFolderNodes()) {
        if (!blackList.contains(subFolderNode))
            recursiveAddFileNodes(subFolderNode, list, blackList);
    }
    foreach (Node *node, startNode->fileNodes()) {
        if (!blackList.contains(node) && !filter(node))
            list->append(node);
    }
}

QList<Node*> FlatModel::childNodes(FolderNode *parentNode, const QSet<Node*> &blackList) const
{
    QList<Node*> nodeList;

    if (parentNode->nodeType() == SessionNodeType) {
        SessionNode *sessionNode = static_cast<SessionNode*>(parentNode);
        QList<ProjectNode*> projectList = sessionNode->projectNodes();
        for (int i = 0; i < projectList.size(); ++i) {
            if (!blackList.contains(projectList.at(i)))
                nodeList << projectList.at(i);
        }
    } else {
        recursiveAddFolderNodes(parentNode, &nodeList, blackList);
        recursiveAddFileNodes(parentNode, &nodeList, blackList + nodeList.toSet());
    }
    qSort(nodeList.begin(), nodeList.end(), sortNodes);
    return nodeList;
}

void FlatModel::fetchMore(FolderNode *folderNode) const
{
dt's avatar
dt committed
437 438
    Q_ASSERT(folderNode);
    Q_ASSERT(!m_childNodes.contains(folderNode));
con's avatar
con committed
439 440 441 442 443 444 445 446

    QList<Node*> nodeList = childNodes(folderNode);
    m_childNodes.insert(folderNode, nodeList);
}

void FlatModel::fetchMore(const QModelIndex &parent)
{
    FolderNode *folderNode = qobject_cast<FolderNode*>(nodeForIndex(parent));
dt's avatar
dt committed
447
    Q_ASSERT(folderNode);
con's avatar
con committed
448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466

    fetchMore(folderNode);
}

void FlatModel::setStartupProject(ProjectNode *projectNode)
{
    if (m_startupProject != projectNode) {
        QModelIndex oldIndex = (m_startupProject ? indexForNode(m_startupProject) : QModelIndex());
        QModelIndex newIndex = (projectNode ? indexForNode(projectNode) : QModelIndex());
        m_startupProject = projectNode;
        if (oldIndex.isValid())
            emit dataChanged(oldIndex, oldIndex);
        if (newIndex.isValid())
            emit dataChanged(newIndex, newIndex);
    }
}

void FlatModel::reset()
{
467
    beginResetModel();
con's avatar
con committed
468
    m_childNodes.clear();
469
    endResetModel();
con's avatar
con committed
470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501
}

QModelIndex FlatModel::indexForNode(const Node *node_)
{
    // We assume that we are only called for nodes that are represented

    // we use non-const pointers internally
    Node *node = const_cast<Node*>(node_);
    if (!node)
        return QModelIndex();

    if (node == m_rootNode)
        return createIndex(0, 0, m_rootNode);

    FolderNode *parentNode = visibleFolderNode(node->parentFolderNode());

    // Do we have the parent mapped?
    QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(parentNode);
    if (it == m_childNodes.constEnd()) {
        fetchMore(parentNode);
        it = m_childNodes.constFind(parentNode);
    }
    if (it != m_childNodes.constEnd()) {
        const int row = it.value().indexOf(node);
        if (row != -1)
            return createIndex(row, 0, node);
    }
    return QModelIndex();
}

void FlatModel::setProjectFilterEnabled(bool filter)
{
502 503
    if (filter == m_filterProjects)
        return;
con's avatar
con committed
504 505 506 507 508 509 510 511 512 513
    m_filterProjects = filter;
    reset();
}

void FlatModel::setGeneratedFilesFilterEnabled(bool filter)
{
    m_filterGeneratedFiles = filter;
    reset();
}

514 515 516 517 518 519 520 521 522 523
bool FlatModel::projectFilterEnabled()
{
    return m_filterProjects;
}

bool FlatModel::generatedFilesFilterEnabled()
{
    return m_filterGeneratedFiles;
}

con's avatar
con committed
524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552
Node *FlatModel::nodeForIndex(const QModelIndex &index) const
{
    if (index.isValid())
        return (Node*)index.internalPointer();
    return 0;
}

/*
  Returns the first folder node in the ancestors
  for the given node that is not filtered
  out by the Flat Model.
*/
FolderNode *FlatModel::visibleFolderNode(FolderNode *node) const
{
    if (!node)
        return 0;

    for (FolderNode *folderNode = node;
         folderNode;
         folderNode = folderNode->parentFolderNode()) {
        if (!filter(folderNode))
            return folderNode;
    }
    return 0;
}

bool FlatModel::filter(Node *node) const
{
    bool isHidden = false;
553 554 555
    if (node->nodeType() == SessionNodeType) {
        isHidden = false;
    } else if (ProjectNode *projectNode = qobject_cast<ProjectNode*>(node)) {
con's avatar
con committed
556
        if (m_filterProjects && projectNode->parentFolderNode() != m_rootNode)
557
            isHidden = !projectNode->hasBuildTargets();
558
    } else if (node->nodeType() == FolderNodeType || node->nodeType() == VirtualFolderNodeType) {
559 560 561
        if (m_filterProjects)
            isHidden = true;
    } else if (FileNode *fileNode = qobject_cast<FileNode*>(node)) {
con's avatar
con committed
562 563 564 565 566 567
        if (m_filterGeneratedFiles)
            isHidden = fileNode->isGenerated();
    }
    return isHidden;
}

568 569 570 571 572 573 574 575 576 577
bool isSorted(const QList<Node *> &nodes)
{
    int size = nodes.size();
    for (int i = 0; i < size -1; ++i) {
        if (!sortNodes(nodes.at(i), nodes.at(i+1)))
            return false;
    }
    return true;
}

con's avatar
con committed
578 579 580 581 582 583 584 585 586 587 588 589 590 591
/// slots and all the fun
void FlatModel::added(FolderNode* parentNode, const QList<Node*> &newNodeList)
{
    QModelIndex parentIndex = indexForNode(parentNode);
    // Old  list
    QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(parentNode);
    if (it == m_childNodes.constEnd())
        return;
    QList<Node *> oldNodeList = it.value();

    // Compare lists and emit signals, and modify m_childNodes on the fly
    QList<Node *>::const_iterator oldIter = oldNodeList.constBegin();
    QList<Node *>::const_iterator newIter = newNodeList.constBegin();

592 593 594 595 596 597 598 599 600 601 602 603 604 605 606
    Q_ASSERT(isSorted(oldNodeList));
    Q_ASSERT(isSorted(newNodeList));

    QSet<Node *> emptyDifference;
    emptyDifference = oldNodeList.toSet();
    emptyDifference.subtract(newNodeList.toSet());
    if (!emptyDifference.isEmpty()) {
        // This should not happen...
        qDebug() << "FlatModel::added, old Node list should be subset of newNode list, found files in old list which were not part of new list";
        foreach (Node *n, emptyDifference) {
            qDebug()<<n->path();
        }
        Q_ASSERT(false);
    }

con's avatar
con committed
607 608 609 610 611 612 613 614 615 616 617 618
    // optimization, check for old list is empty
    if (oldIter == oldNodeList.constEnd()) {
        // New Node List is empty, nothing added which intrest us
        if (newIter == newNodeList.constEnd())
            return;
        // So all we need to do is easy
        beginInsertRows(parentIndex, 0, newNodeList.size() - 1);
        m_childNodes.insert(parentNode, newNodeList);
        endInsertRows();
        return;
    }

hjk's avatar
hjk committed
619
    while (true) {
con's avatar
con committed
620
        // Skip all that are the same
hjk's avatar
hjk committed
621
        while (*oldIter == *newIter) {
con's avatar
con committed
622 623 624 625 626 627 628 629 630 631
            ++oldIter;
            ++newIter;
            if (oldIter == oldNodeList.constEnd()) {
                // At end of oldNodeList, sweep up rest of newNodeList
                QList<Node *>::const_iterator startOfBlock = newIter;
                newIter = newNodeList.constEnd();
                int pos = oldIter - oldNodeList.constBegin();
                int count = newIter - startOfBlock;
                if (count > 0) {
                    beginInsertRows(parentIndex, pos, pos+count-1);
hjk's avatar
hjk committed
632
                    while (startOfBlock != newIter) {
con's avatar
con committed
633 634 635 636 637 638 639 640 641 642 643 644
                        oldNodeList.insert(pos, *startOfBlock);
                        ++pos;
                        ++startOfBlock;
                    }
                    m_childNodes.insert(parentNode, oldNodeList);
                    endInsertRows();
                }
                return; // Done with the lists, leave the function
            }
        }

        QList<Node *>::const_iterator startOfBlock = newIter;
hjk's avatar
hjk committed
645
        while (*oldIter != *newIter)
con's avatar
con committed
646 647 648 649 650 651 652 653
            ++newIter;
        // startOfBlock is the first that was diffrent
        // newIter points to the new position of oldIter
        // newIter - startOfBlock is number of new items
        // oldIter is the position where those are...
        int pos = oldIter - oldNodeList.constBegin();
        int count = newIter - startOfBlock;
        beginInsertRows(parentIndex, pos, pos + count - 1);
hjk's avatar
hjk committed
654
        while (startOfBlock != newIter) {
con's avatar
con committed
655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671
            oldNodeList.insert(pos, *startOfBlock);
            ++pos;
            ++startOfBlock;
        }
        m_childNodes.insert(parentNode, oldNodeList);
        endInsertRows();
        oldIter = oldNodeList.constBegin() + pos;
    }
}

void FlatModel::removed(FolderNode* parentNode, const QList<Node*> &newNodeList)
{
    QModelIndex parentIndex = indexForNode(parentNode);
    // Old  list
    QHash<FolderNode*, QList<Node*> >::const_iterator it = m_childNodes.constFind(parentNode);
    if (it == m_childNodes.constEnd())
        return;
672

con's avatar
con committed
673 674 675 676 677
    QList<Node *> oldNodeList = it.value();
    // Compare lists and emit signals, and modify m_childNodes on the fly
    QList<Node *>::const_iterator oldIter = oldNodeList.constBegin();
    QList<Node *>::const_iterator newIter = newNodeList.constBegin();

678 679 680 681 682 683 684 685 686 687 688 689 690 691
    Q_ASSERT(isSorted(newNodeList));

    QSet<Node *> emptyDifference;
    emptyDifference = newNodeList.toSet();
    emptyDifference.subtract(oldNodeList.toSet());
    if (!emptyDifference.isEmpty()) {
        // This should not happen...
        qDebug() << "FlatModel::removed, new Node list should be subset of oldNode list, found files in new list which were not part of old list";
        foreach (Node *n, emptyDifference) {
            qDebug()<<n->path();
        }
        Q_ASSERT(false);
    }

con's avatar
con committed
692 693 694 695 696 697 698 699 700 701 702 703
    // optimization, check for new list is empty
    if (newIter == newNodeList.constEnd()) {
        // New Node List is empty, everything removed
        if (oldIter == oldNodeList.constEnd())
            return;
        // So all we need to do is easy
        beginRemoveRows(parentIndex, 0, oldNodeList.size() - 1);
        m_childNodes.insert(parentNode, newNodeList);
        endRemoveRows();
        return;
    }

hjk's avatar
hjk committed
704
    while (true) {
con's avatar
con committed
705
        // Skip all that are the same
hjk's avatar
hjk committed
706
        while (*oldIter == *newIter) {
con's avatar
con committed
707 708 709 710 711 712 713 714 715 716
            ++oldIter;
            ++newIter;
            if (newIter == newNodeList.constEnd()) {
                // At end of newNodeList, sweep up rest of oldNodeList
                QList<Node *>::const_iterator startOfBlock = oldIter;
                oldIter = oldNodeList.constEnd();
                int pos = startOfBlock - oldNodeList.constBegin();
                int count = oldIter - startOfBlock;
                if (count > 0) {
                    beginRemoveRows(parentIndex, pos, pos+count-1);
hjk's avatar
hjk committed
717
                    while (startOfBlock != oldIter) {
con's avatar
con committed
718 719 720 721 722 723 724 725 726 727 728 729
                        ++startOfBlock;
                        oldNodeList.removeAt(pos);
                    }

                    m_childNodes.insert(parentNode, oldNodeList);
                    endRemoveRows();
                }
                return; // Done with the lists, leave the function
            }
        }

        QList<Node *>::const_iterator startOfBlock = oldIter;
hjk's avatar
hjk committed
730
        while (*oldIter != *newIter)
con's avatar
con committed
731 732 733 734 735 736 737 738
            ++oldIter;
        // startOfBlock is the first that was diffrent
        // oldIter points to the new position of newIter
        // oldIter - startOfBlock is number of new items
        // newIter is the position where those are...
        int pos = startOfBlock - oldNodeList.constBegin();
        int count = oldIter - startOfBlock;
        beginRemoveRows(parentIndex, pos, pos + count - 1);
hjk's avatar
hjk committed
739
        while (startOfBlock != oldIter) {
con's avatar
con committed
740 741 742 743 744 745 746 747 748
            ++startOfBlock;
            oldNodeList.removeAt(pos);
        }
        m_childNodes.insert(parentNode, oldNodeList);
        endRemoveRows();
        oldIter = oldNodeList.constBegin() + pos;
    }
}

749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773
void FlatModel::aboutToHasBuildTargetsChanged(ProjectExplorer::ProjectNode* node)
{
    if (!m_filterProjects)
        return;
    FolderNode *folder = visibleFolderNode(node->parentFolderNode());
    QList<Node *> newNodeList = childNodes(folder, QSet<Node *>() << node);
    removed(folder, newNodeList);

    QList<Node *> staleFolders;
    recursiveAddFolderNodesImpl(node, &staleFolders);
    foreach (Node *n, staleFolders)
        if (FolderNode *fn = qobject_cast<FolderNode *>(n))
            m_childNodes.remove(fn);
}

void FlatModel::hasBuildTargetsChanged(ProjectExplorer::ProjectNode *node)
{
    if (!m_filterProjects)
        return;
    // we are only interested if we filter
    FolderNode *folder = visibleFolderNode(node->parentFolderNode());
    QList<Node *> newNodeList = childNodes(folder);
    added(folder, newNodeList);
}

con's avatar
con committed
774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793
void FlatModel::foldersAboutToBeAdded(FolderNode *parentFolder, const QList<FolderNode*> &newFolders)
{
    Q_UNUSED(newFolders)
    m_parentFolderForChange = parentFolder;
}

void FlatModel::foldersAdded()
{
    // First found out what the folder is that we are adding the files to
    FolderNode *folderNode = visibleFolderNode(m_parentFolderForChange);

    // Now get the new list for that folder
    QList<Node *> newNodeList = childNodes(folderNode);

    added(folderNode, newNodeList);
}

void FlatModel::foldersAboutToBeRemoved(FolderNode *parentFolder, const QList<FolderNode*> &staleFolders)
{
    QSet<Node *> blackList;
hjk's avatar
hjk committed
794
    foreach (FolderNode *node, staleFolders)
con's avatar
con committed
795 796 797 798 799
        blackList.insert(node);

    FolderNode *folderNode = visibleFolderNode(parentFolder);
    QList<Node *> newNodeList = childNodes(folderNode, blackList);

800
    removed(folderNode, newNodeList);
con's avatar
con committed
801 802 803 804 805
    removeFromCache(staleFolders);
}

void FlatModel::removeFromCache(QList<FolderNode *> list)
{
hjk's avatar
hjk committed
806
    foreach (FolderNode *fn, list) {
con's avatar
con committed
807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838
        removeFromCache(fn->subFolderNodes());
        m_childNodes.remove(fn);
    }
}

void FlatModel::foldersRemoved()
{
    // Do nothing
}

void FlatModel::filesAboutToBeAdded(FolderNode *folder, const QList<FileNode*> &newFiles)
{
    Q_UNUSED(newFiles)
    m_parentFolderForChange = folder;
}

void FlatModel::filesAdded()
{
    // First find out what the folder is that we are adding the files to
    FolderNode *folderNode = visibleFolderNode(m_parentFolderForChange);

    // Now get the new List for that folder
    QList<Node *> newNodeList = childNodes(folderNode);
    added(folderNode, newNodeList);
}

void FlatModel::filesAboutToBeRemoved(FolderNode *folder, const QList<FileNode*> &staleFiles)
{
    // First found out what the folder (that is the project) is that we are adding the files to
    FolderNode *folderNode = visibleFolderNode(folder);

    QSet<Node *> blackList;
839
    foreach (Node *node, staleFiles)
con's avatar
con committed
840 841 842 843 844 845 846 847 848 849 850
        blackList.insert(node);

    // Now get the new List for that folder
    QList<Node *> newNodeList = childNodes(folderNode, blackList);
    removed(folderNode, newNodeList);
}

void FlatModel::filesRemoved()
{
    // Do nothing
}
851 852 853 854 855 856 857 858 859 860 861 862 863 864 865

namespace ProjectExplorer {
namespace Internal {

int caseFriendlyCompare(const QString &a, const QString &b)
{
    int result = a.compare(b, Qt::CaseInsensitive);
    if (result != 0)
        return result;
    return a.compare(b, Qt::CaseSensitive);
}

}
}