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Debugger: Move some tooltip model code out of treeview

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Closer to the usual pattern.

Change-Id: Iee0f095a59755424bd2e494aaa89215669d02972
Reviewed-by: Christian Stenger <christian.stenger@theqtcompany.com>
This commit is contained in:
hjk
2015-02-24 18:51:28 +01:00
parent 0efef6e3cd
commit 49fa8afcb9
1 changed files with 138 additions and 155 deletions
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293
src/plugins/debugger/debuggertooltipmanager.cpp
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@@ -204,6 +204,7 @@ public:
QString name;
QString value;
QString type;
QString expression;
QColor color;
bool expandable;
QByteArray iname;
@@ -217,6 +218,7 @@ ToolTipWatchItem::ToolTipWatchItem(WatchItem *item)
iname = item->d.iname;
color = item->color();
expandable = item->d.hasChildren;
expression = item->expression();
foreach (TreeItem *child, item->children())
appendChild(new ToolTipWatchItem(static_cast<WatchItem *>(child)));
}
@@ -366,136 +368,35 @@ void ToolTipModel::restoreTreeModel(QXmlStreamReader &r)
class DebuggerToolTipTreeView : public QTreeView
{
public:
explicit DebuggerToolTipTreeView(QWidget *parent = 0);
explicit DebuggerToolTipTreeView(QWidget *parent)
: QTreeView(parent)
{
setHeaderHidden(true);
setEditTriggers(NoEditTriggers);
setUniformRowHeights(true);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
QSize sizeHint() const { return m_size; }
void computeSize();
void setEngine(DebuggerEngine *engine);
private:
int computeHeight(const QModelIndex &index) const;
WatchHandler *watchHandler() const
int sizeHintForColumn(int column) const
{
return m_model.m_engine->watchHandler();
return QTreeView::sizeHintForColumn(column);
}
int computeHeight(const QModelIndex &index) const
{
int s = rowHeight(index);
const int rowCount = model()->rowCount(index);
for (int i = 0; i < rowCount; ++i)
s += computeHeight(model()->index(i, 0, index));
return s;
}
QSize m_size;
public:
ToolTipModel m_model;
void reexpand(const QModelIndex &idx);
};
DebuggerToolTipTreeView::DebuggerToolTipTreeView(QWidget *parent)
: QTreeView(parent)
{
setHeaderHidden(true);
setEditTriggers(NoEditTriggers);
setUniformRowHeights(true);
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
setModel(&m_model);
connect(this, &QTreeView::collapsed, this, &DebuggerToolTipTreeView::computeSize,
Qt::QueuedConnection);
connect(this, &QTreeView::expanded, this, &DebuggerToolTipTreeView::computeSize,
Qt::QueuedConnection);
connect(this, &QTreeView::expanded, &m_model, &ToolTipModel::expandNode);
connect(this, &QTreeView::collapsed, &m_model, &ToolTipModel::collapseNode);
}
void DebuggerToolTipTreeView::setEngine(DebuggerEngine *engine)
{
m_model.m_engine = engine;
}
int DebuggerToolTipTreeView::computeHeight(const QModelIndex &index) const
{
int s = rowHeight(index);
const int rowCount = model()->rowCount(index);
for (int i = 0; i < rowCount; ++i)
s += computeHeight(model()->index(i, 0, index));
return s;
}
void DebuggerToolTipTreeView::reexpand(const QModelIndex &idx)
{
TreeItem *item = m_model.itemFromIndex(idx);
QTC_ASSERT(item, return);
QByteArray iname = item->data(0, LocalsINameRole).toByteArray();
bool shouldExpand = m_model.m_expandedINames.contains(iname);
if (shouldExpand) {
if (!isExpanded(idx)) {
expand(idx);
for (int i = 0, n = model()->rowCount(idx); i != n; ++i) {
QModelIndex idx1 = model()->index(i, 0, idx);
reexpand(idx1);
}
}
} else {
if (isExpanded(idx))
collapse(idx);
}
}
void DebuggerToolTipTreeView::computeSize()
{
int columns = 30; // Decoration
int rows = 0;
bool rootDecorated = false;
if (QAbstractItemModel *m = model()) {
reexpand(m->index(0, 0));
const int columnCount = m->columnCount();
rootDecorated = m->rowCount() > 0;
if (rootDecorated) {
for (int i = 0; i < columnCount; ++i) {
resizeColumnToContents(i);
columns += sizeHintForColumn(i);
}
}
if (columns < 100)
columns = 100; // Prevent toolbar from shrinking when displaying 'Previous'
rows += computeHeight(QModelIndex());
// Fit tooltip to screen, showing/hiding scrollbars as needed.
// Add a bit of space to account for tooltip border, and not
// touch the border of the screen.
QPoint pos(x(), y());
QTC_ASSERT(QApplication::desktop(), return);
QRect desktopRect = QApplication::desktop()->availableGeometry(pos);
const int maxWidth = desktopRect.right() - pos.x() - 5 - 5;
const int maxHeight = desktopRect.bottom() - pos.y() - 5 - 5;
if (columns > maxWidth)
rows += horizontalScrollBar()->height();
if (rows > maxHeight) {
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
rows = maxHeight;
columns += verticalScrollBar()->width();
} else {
setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
if (columns > maxWidth) {
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
columns = maxWidth;
} else {
setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
}
m_size = QSize(columns + 5, rows + 5);
setMinimumSize(m_size);
setMaximumSize(m_size);
setRootIsDecorated(rootDecorated);
}
/////////////////////////////////////////////////////////////////////////
//
@@ -508,10 +409,7 @@ class DebuggerToolTipWidget : public QWidget
public:
DebuggerToolTipWidget();
~DebuggerToolTipWidget()
{
DEBUG("DESTROY DEBUGGERTOOLTIP WIDGET");
}
~DebuggerToolTipWidget() { DEBUG("DESTROY DEBUGGERTOOLTIP WIDGET"); }
void closeEvent(QCloseEvent *)
{
@@ -548,11 +446,54 @@ public:
titleLabel->active = true; // User can now drag
}
void computeSize();
void setContents(ToolTipWatchItem *item)
{
titleLabel->setText(item->expression);
//treeView->setEnabled(true);
model.m_enabled = true;
if (item) {
model.rootItem()->removeChildren();
model.rootItem()->appendChild(item);
}
reexpand(QModelIndex());
computeSize();
}
WatchHandler *watchHandler() const
{
return model.m_engine->watchHandler();
}
void setEngine(DebuggerEngine *engine) { model.m_engine = engine; }
void reexpand(const QModelIndex &idx)
{
TreeItem *item = model.itemFromIndex(idx);
QTC_ASSERT(item, return);
QByteArray iname = item->data(0, LocalsINameRole).toByteArray();
bool shouldExpand = model.m_expandedINames.contains(iname);
if (shouldExpand) {
if (!treeView->isExpanded(idx)) {
treeView->expand(idx);
for (int i = 0, n = model.rowCount(idx); i != n; ++i) {
QModelIndex idx1 = model.index(i, 0, idx);
reexpand(idx1);
}
}
} else {
if (treeView->isExpanded(idx))
treeView->collapse(idx);
}
}
public:
bool isPinned;
QToolButton *pinButton;
DraggableLabel *titleLabel;
DebuggerToolTipTreeView *treeView;
ToolTipModel model;
};
DebuggerToolTipWidget::DebuggerToolTipWidget()
@@ -584,6 +525,7 @@ DebuggerToolTipWidget::DebuggerToolTipWidget()
treeView = new DebuggerToolTipTreeView(this);
treeView->setFocusPolicy(Qt::NoFocus);
treeView->setModel(&model);
auto mainLayout = new QVBoxLayout(this);
mainLayout->setSizeConstraint(QLayout::SetFixedSize);
@@ -594,7 +536,7 @@ DebuggerToolTipWidget::DebuggerToolTipWidget()
connect(copyButton, &QAbstractButton::clicked, [this] {
QString text;
QTextStream str(&text);
treeView->m_model.rootItem()->walkTree([&str](TreeItem *item) {
model.rootItem()->walkTree([&str](TreeItem *item) {
auto titem = static_cast<ToolTipWatchItem *>(item);
str << QString(item->level(), QLatin1Char('\t'))
<< titem->name << '\t' << titem->value << '\t' << titem->type << '\n';
@@ -603,9 +545,69 @@ DebuggerToolTipWidget::DebuggerToolTipWidget()
clipboard->setText(text, QClipboard::Selection);
clipboard->setText(text, QClipboard::Clipboard);
});
connect(treeView, &QTreeView::expanded, &model, &ToolTipModel::expandNode);
connect(treeView, &QTreeView::collapsed, &model, &ToolTipModel::collapseNode);
connect(treeView, &QTreeView::collapsed, this, &DebuggerToolTipWidget::computeSize,
Qt::QueuedConnection);
connect(treeView, &QTreeView::expanded, this, &DebuggerToolTipWidget::computeSize,
Qt::QueuedConnection);
DEBUG("CREATE DEBUGGERTOOLTIP WIDGET");
}
void DebuggerToolTipWidget::computeSize()
{
int columns = 30; // Decoration
int rows = 0;
bool rootDecorated = false;
reexpand(model.index(0, 0, QModelIndex()));
const int columnCount = model.columnCount(QModelIndex());
rootDecorated = model.rowCount() > 0;
if (rootDecorated) {
for (int i = 0; i < columnCount; ++i) {
treeView->resizeColumnToContents(i);
columns += treeView->sizeHintForColumn(i);
}
}
if (columns < 100)
columns = 100; // Prevent toolbar from shrinking when displaying 'Previous'
rows += treeView->computeHeight(QModelIndex());
// Fit tooltip to screen, showing/hiding scrollbars as needed.
// Add a bit of space to account for tooltip border, and not
// touch the border of the screen.
QPoint pos(x(), y());
QTC_ASSERT(QApplication::desktop(), return);
QRect desktopRect = QApplication::desktop()->availableGeometry(pos);
const int maxWidth = desktopRect.right() - pos.x() - 5 - 5;
const int maxHeight = desktopRect.bottom() - pos.y() - 5 - 5;
if (columns > maxWidth)
rows += treeView->horizontalScrollBar()->height();
if (rows > maxHeight) {
treeView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
rows = maxHeight;
columns += treeView->verticalScrollBar()->width();
} else {
treeView->setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
if (columns > maxWidth) {
treeView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOn);
columns = maxWidth;
} else {
treeView->setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
}
treeView->m_size = QSize(columns + 5, rows + 5);
treeView->setMinimumSize(treeView->m_size);
treeView->setMaximumSize(treeView->m_size);
treeView->setRootIsDecorated(rootDecorated);
}
/////////////////////////////////////////////////////////////////////////
//
@@ -645,7 +647,6 @@ public:
QPointer<DebuggerToolTipWidget> widget;
QDate creationDate;
DebuggerToolTipContext context;
DebuggerTooltipState state;
};
@@ -788,7 +789,7 @@ DebuggerToolTipHolder::~DebuggerToolTipHolder()
void DebuggerToolTipHolder::updateTooltip(DebuggerEngine *engine)
{
widget->treeView->setEngine(engine);
widget->setEngine(engine);
if (!engine) {
setState(Released);
@@ -796,6 +797,7 @@ void DebuggerToolTipHolder::updateTooltip(DebuggerEngine *engine)
}
StackFrame frame = engine->stackHandler()->currentFrame();
WatchItem *item = engine->watchHandler()->findItem(context.iname);
// FIXME: The engine should decide on whether it likes
// the context.
@@ -806,14 +808,15 @@ void DebuggerToolTipHolder::updateTooltip(DebuggerEngine *engine)
<< "SHOW NEEDED: " << widget->isPinned
<< "SAME FRAME: " << sameFrame);
if (state == PendingUnshown) {
ToolTip::show(context.mousePosition, widget, Internal::mainWindow());
setState(PendingShown);
}
if (sameFrame) {
acquireEngine(engine);
if (item && sameFrame) {
setState(Acquired);
DEBUG("ACQUIRE ENGINE: STATE " << state);
widget->setContents(new ToolTipWatchItem(item));
} else {
releaseEngine();
}
@@ -848,26 +851,6 @@ void DebuggerToolTipHolder::destroy()
}
}
void DebuggerToolTipHolder::acquireEngine(DebuggerEngine *engine)
{
DEBUG("ACQUIRE ENGINE: STATE " << state);
setState(Acquired);
QTC_ASSERT(widget, return);
widget->titleLabel->setText(context.expression);
//widget->treeView->setEnabled(true);
widget->treeView->m_model.m_enabled = true;
WatchItem *item = engine->watchHandler()->findItem(context.iname);
if (item) {
auto clone = new ToolTipWatchItem(item);
widget->treeView->m_model.rootItem()->removeChildren();
widget->treeView->m_model.rootItem()->appendChild(clone);
}
WatchTreeView::reexpand(widget->treeView, QModelIndex());
widget->treeView->computeSize();
}
void DebuggerToolTipHolder::releaseEngine()
{
if (state == Released)
@@ -876,8 +859,8 @@ void DebuggerToolTipHolder::releaseEngine()
setState(Released);
QTC_ASSERT(widget, return);
widget->treeView->m_model.m_enabled = false;
widget->treeView->m_model.layoutChanged();
widget->model.m_enabled = false;
widget->model.layoutChanged();
widget->titleLabel->setText(DebuggerToolTipManager::tr("%1 (Previous)").arg(context.expression));
// widget->treeView->setEnabled(false);
}
@@ -963,7 +946,7 @@ void DebuggerToolTipHolder::saveSessionData(QXmlStreamWriter &w) const
w.writeAttributes(attributes);
w.writeStartElement(QLatin1String(treeElementC));
widget->treeView->m_model.rootItem()->walkTree([&w](TreeItem *item) {
widget->model.rootItem()->walkTree([&w](TreeItem *item) {
const QString modelItemElement = QLatin1String(modelItemElementC);
for (int i = 0; i < 3; ++i) {
const QString value = item->data(i, Qt::DisplayRole).toString();
@@ -1126,7 +1109,7 @@ void DebuggerToolTipManager::loadSessionData()
if (readTree) {
DebuggerToolTipHolder *tw = findOrCreateTooltip(context);
tw->widget->treeView->m_model.restoreTreeModel(r);
tw->widget->model.restoreTreeModel(r);
tw->widget->pin();
tw->widget->titleLabel->setText(DebuggerToolTipManager::tr("%1 (Restored)").arg(context.expression));
tw->widget->treeView->expandAll();