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Fixes: Crashes on switching sessions.

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Task:     Reported on irc
Details:  Hopefully this new code is a little bit more robust, i tried
to untangle the code a bit.
This commit is contained in:
dt
2009-03-11 17:36:17 +01:00
parent 047e5af24a
commit 0cd8da28d4
5 changed files with 93 additions and 52 deletions
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2
src/plugins/projectexplorer/projectexplorer.cpp
View File

@@ -1121,7 +1121,7 @@ void ProjectExplorerPlugin::setCurrent(Project *project, QString filePath, Node
if (node)
filePath = node->path();
else
node = m_session->nodeForFile(filePath);
node = m_session->nodeForFile(filePath, project);
Core::ICore *core = Core::ICore::instance();

103
src/plugins/projectexplorer/projectwindow.cpp
View File

@@ -65,10 +65,9 @@ ProjectWindow::ProjectWindow(QWidget *parent) : QWidget(parent)
m_projectExplorer = ProjectExplorerPlugin::instance();
m_session = m_projectExplorer->session();
connect(m_session, SIGNAL(sessionLoaded()), this, SLOT(restoreStatus()));
connect(m_session, SIGNAL(aboutToSaveSession()), this, SLOT(saveStatus()));
m_treeWidget = new QTreeWidget(this);
m_treeWidget->setSelectionMode(QAbstractItemView::SingleSelection);
m_treeWidget->setSelectionBehavior(QAbstractItemView::SelectRows);
m_treeWidget->setFrameStyle(QFrame::NoFrame);
m_treeWidget->setRootIsDecorated(false);
m_treeWidget->header()->setResizeMode(QHeaderView::ResizeToContents);
@@ -79,7 +78,7 @@ ProjectWindow::ProjectWindow(QWidget *parent) : QWidget(parent)
);
connect(m_treeWidget, SIGNAL(itemChanged(QTreeWidgetItem*, int)),
this, SLOT(handleItem(QTreeWidgetItem*, int)), Qt::QueuedConnection);
this, SLOT(handleItem(QTreeWidgetItem*, int)));
connect(m_treeWidget, SIGNAL(currentItemChanged(QTreeWidgetItem*, QTreeWidgetItem *)),
this, SLOT(handleCurrentItemChanged(QTreeWidgetItem*)));
@@ -116,10 +115,14 @@ ProjectWindow::ProjectWindow(QWidget *parent) : QWidget(parent)
topLayout->setSpacing(0);
topLayout->addWidget(splitter);
connect(m_session, SIGNAL(sessionLoaded()), this, SLOT(updateTreeWidget()));
connect(m_session, SIGNAL(startupProjectChanged(ProjectExplorer::Project*)), this, SLOT(updateTreeWidget()));
connect(m_session, SIGNAL(projectAdded(ProjectExplorer::Project*)), this, SLOT(updateTreeWidget()));
connect(m_session, SIGNAL(projectRemoved(ProjectExplorer::Project*)), this, SLOT(updateTreeWidget()));
connect(m_session, SIGNAL(sessionLoaded()), this, SLOT(restoreStatus()));
connect(m_session, SIGNAL(aboutToSaveSession()), this, SLOT(saveStatus()));
connect(m_session, SIGNAL(startupProjectChanged(ProjectExplorer::Project*)), this, SLOT(updateTreeWidgetStatupProjectChanged(ProjectExplorer::Project*)));
connect(m_session, SIGNAL(projectAdded(ProjectExplorer::Project*)), this, SLOT(updateTreeWidgetProjectAdded(ProjectExplorer::Project*)));
connect(m_session, SIGNAL(projectRemoved(ProjectExplorer::Project*)), this, SLOT(updateTreeWidgetProjectRemoved(ProjectExplorer::Project*)));
connect(m_session, SIGNAL(aboutToRemoveProject(ProjectExplorer::Project*)), this, SLOT(updateTreeWidgetAboutToRemoveProject(ProjectExplorer::Project*)));
}
ProjectWindow::~ProjectWindow()
@@ -128,12 +131,21 @@ ProjectWindow::~ProjectWindow()
void ProjectWindow::restoreStatus()
{
m_panelsTabWidget->setFocus();
if (!m_treeWidget->currentItem() && m_treeWidget->topLevelItemCount()) {
m_treeWidget->setCurrentItem(m_treeWidget->topLevelItem(0), 0, QItemSelectionModel::SelectCurrent | QItemSelectionModel::Rows);
}
const QVariant lastPanel = m_session->value(QLatin1String("ProjectWindow/Panel"));
if (lastPanel.isValid()) {
const int index = lastPanel.toInt();
if (index < m_panelsTabWidget->count())
m_panelsTabWidget->setCurrentIndex(index);
}
if ((m_panelsTabWidget->currentIndex() == -1) && m_panelsTabWidget->count())
m_panelsTabWidget->setCurrentIndex(0);
}
void ProjectWindow::saveStatus()
@@ -172,52 +184,69 @@ void ProjectWindow::showProperties(ProjectExplorer::Project *project, const QMod
}
}
void ProjectWindow::updateTreeWidget()
void ProjectWindow::updateTreeWidgetStatupProjectChanged(ProjectExplorer::Project *startupProject)
{
// This setFocus prevents a crash, which I (daniel) spend the better part of a day tracking down.
// To explain: Consider the case that a widget on either the build or run settings has Focus
// Us clearing the m_treewidget will emit a currentItemChanged(0) signal
// Which is connected to showProperties
// showProperties will now remove the widget that has focus from m_panelsTabWidget, so the treewidget
// gets focus, which will in focusIn select the first entry (due to QTreeWidget::clear() implementation,
// there are still items in the model) which emits another currentItemChanged() signal
// That one runs fully thorough and deletes all widgets, even that one that we are currently removing
// from m_panelsTabWidget.
// To prevent that, we simply prevent the focus switching....
QWidget *focusWidget = qApp->focusWidget();
while (focusWidget) {
if (focusWidget == this) {
m_treeWidget->setFocus();
break;
int count = m_treeWidget->topLevelItemCount();
for (int i = 0; i < count; ++i) {
QTreeWidgetItem *item = m_treeWidget->topLevelItem(i);
if (Project *project = findProject(item->text(2))) {
bool checked = (startupProject == project);
if (item->checkState(1) != (checked ? Qt::Checked : Qt::Unchecked))
item->setCheckState(1, checked ? Qt::Checked : Qt::Unchecked);
} else {
item->setCheckState(1, Qt::Unchecked);
}
focusWidget = focusWidget->parentWidget();
}
m_treeWidget->clear();
}
foreach(Project *project, m_session->projects()) {
const QFileInfo fileInfo(project->file()->fileName());
void ProjectWindow::updateTreeWidgetProjectAdded(ProjectExplorer::Project *projectAdded)
{
int position = m_session->projects().indexOf(projectAdded);
const QFileInfo fileInfo(projectAdded->file()->fileName());
QTreeWidgetItem *item = new QTreeWidgetItem();
item->setText(0, fileInfo.baseName());
item->setIcon(0, Core::FileIconProvider::instance()->icon(fileInfo));
item->setText(2, fileInfo.filePath());
if (project->isApplication()) {
bool checked = (m_session->startupProject() == project);
if (projectAdded->isApplication()) {
bool checked = (m_session->startupProject() == projectAdded);
item->setCheckState(1, checked ? Qt::Checked : Qt::Unchecked);
}
m_treeWidget->addTopLevelItem(item);
m_treeWidget->insertTopLevelItem(position, item);
}
void ProjectWindow::updateTreeWidgetAboutToRemoveProject(ProjectExplorer::Project *projectRemoved) {
int count = m_treeWidget->topLevelItemCount();
for (int i = 0; i < count; ++i) {
QTreeWidgetItem *item = m_treeWidget->topLevelItem(i);
if (item->text(2) == QFileInfo(projectRemoved->file()->fileName()).filePath()) {
if (m_treeWidget->currentItem() == item) {
m_treeWidget->setCurrentItem(0);
}
}
}
}
void ProjectWindow::updateTreeWidgetProjectRemoved(ProjectExplorer::Project *projectRemoved)
{
int count = m_treeWidget->topLevelItemCount();
for (int i = 0; i < count; ++i) {
QTreeWidgetItem *item = m_treeWidget->topLevelItem(i);
if (item->text(2) == QFileInfo(projectRemoved->file()->fileName()).filePath()) {
QTreeWidgetItem *it = m_treeWidget->takeTopLevelItem(i);
delete it;
break;
}
}
}
Project *ProjectWindow::findProject(const QString &path) const
{
QList<Project*> projects = m_session->projects();
foreach (Project* project, projects)
if (project->file()->fileName() == path)
if (QFileInfo(project->file()->fileName()).filePath() == path)
return project;
return 0;
}
@@ -232,22 +261,26 @@ void ProjectWindow::handleCurrentItemChanged(QTreeWidgetItem *current)
showProperties(project, QModelIndex());
return;
}
} else {
showProperties(0, QModelIndex());
}
}
void ProjectWindow::handleItem(QTreeWidgetItem *item, int column)
{
if (!item || column != 1) // startup project
return;
const QString path = item->text(2);
Project *project = findProject(path);
if (project && project->isApplication()) {
if (!(item->checkState(1) == Qt::Checked)) {
if (!(item->checkState(1) == Qt::Checked)) { // is now unchecked
if (m_session->startupProject() == project) {
item->setCheckState(1, Qt::Checked); // uncheck not supported
} else {
}
} else { // is now checked
m_session->setStartupProject(project);
}
}

6
src/plugins/projectexplorer/projectwindow.h
View File

@@ -62,6 +62,12 @@ private slots:
void saveStatus();
void updateTreeWidget();
void updateTreeWidgetStatupProjectChanged(ProjectExplorer::Project *startupProject);
void updateTreeWidgetProjectAdded(ProjectExplorer::Project *addedProject);
void updateTreeWidgetProjectRemoved(ProjectExplorer::Project *removedProject);
void updateTreeWidgetAboutToRemoveProject(ProjectExplorer::Project *removedProject);
void handleItem(QTreeWidgetItem *item, int column);
void handleCurrentItemChanged(QTreeWidgetItem *);

6
src/plugins/projectexplorer/session.cpp
View File

@@ -826,10 +826,12 @@ Project *SessionManager::projectForNode(Node *node) const
return project;
}
Node *SessionManager::nodeForFile(const QString &fileName) const
Node *SessionManager::nodeForFile(const QString &fileName, Project *project) const
{
Node *node = 0;
if (Project *project = projectForFile(fileName)) {
if (!project)
project = projectForFile(fileName);
if (project) {
FindNodesForFileVisitor findNodes(fileName);
project->rootProjectNode()->accept(&findNodes);

2
src/plugins/projectexplorer/session.h
View File

@@ -144,7 +144,7 @@ public:
SessionNode *sessionNode() const;
Project *projectForNode(ProjectExplorer::Node *node) const;
Node *nodeForFile(const QString &fileName) const;
Node *nodeForFile(const QString &fileName, Project *project = 0) const;
Project *projectForFile(const QString &fileName) const;