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Initial work on better function argument widget

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Done with Roberto Raggi.
This commit is contained in:
Thorbjørn Lindeijer
2009-03-26 11:14:05 +01:00
parent 5a97436c0c
commit 8912f4db98
1 changed files with 98 additions and 30 deletions
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128
src/plugins/cpptools/cppcodecompletion.cpp
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@@ -60,10 +60,11 @@
#include <QtCore/QMap>
#include <QtCore/QFile>
#include <QtGui/QAction>
#include <QtGui/QApplication>
#include <QtGui/QKeyEvent>
#include <QtGui/QLabel>
#include <QtGui/QToolButton>
#include <QtGui/QVBoxLayout>
#include <QtGui/QApplication>
using namespace CPlusPlus;
@@ -72,26 +73,37 @@ namespace Internal {
class FunctionArgumentWidget : public QLabel
{
Q_OBJECT
public:
FunctionArgumentWidget();
void showFunctionHint(Function *functionSymbol, const LookupContext &context);
void showFunctionHint(QList<Function *> functionSymbols, const LookupContext &context);
protected:
bool eventFilter(QObject *obj, QEvent *e);
private slots:
void nextPage();
void previousPage();
private:
void update();
void close();
void updateHintText();
Function *currentFunction() const
{ return m_items.at(m_current); }
int m_startpos;
int m_currentarg;
TextEditor::ITextEditor *m_editor;
QWidget *m_pager;
QFrame *m_popupFrame;
Function *m_item;
QList<Function *> m_items;
LookupContext m_context;
int m_current;
};
class ConvertToCompletionItem: protected NameVisitor
@@ -180,57 +192,101 @@ protected:
using namespace CppTools::Internal;
FunctionArgumentWidget::FunctionArgumentWidget()
: m_item(0)
FunctionArgumentWidget::FunctionArgumentWidget():
m_current(0)
{
QObject *editorObject = Core::EditorManager::instance()->currentEditor();
m_editor = qobject_cast<TextEditor::ITextEditor *>(editorObject);
m_popupFrame = new QFrame(0, Qt::ToolTip | Qt::WindowStaysOnTopHint);
m_popupFrame = new QFrame(m_editor->widget(), Qt::ToolTip | Qt::WindowStaysOnTopHint);
m_popupFrame->setFocusPolicy(Qt::NoFocus);
m_popupFrame->setAttribute(Qt::WA_DeleteOnClose);
setFrameStyle(QFrame::Box);
setFrameShadow(QFrame::Plain);
QToolButton *leftArrow = new QToolButton;
leftArrow->setArrowType(Qt::LeftArrow);
leftArrow->setFixedSize(16, 16);
leftArrow->setAutoRaise(true);
QToolButton *rightArrow = new QToolButton;
rightArrow->setArrowType(Qt::RightArrow);
rightArrow->setFixedSize(16, 16);
rightArrow->setAutoRaise(true);
m_popupFrame->setFrameStyle(QFrame::Box);
m_popupFrame->setFrameShadow(QFrame::Plain);
setParent(m_popupFrame);
setFocusPolicy(Qt::NoFocus);
m_pager = new QWidget;
QHBoxLayout *hbox = new QHBoxLayout(m_pager);
hbox->setMargin(0);
hbox->setSpacing(0);
hbox->addSpacerItem(new QSpacerItem(0, 0, QSizePolicy::MinimumExpanding, QSizePolicy::Minimum));
hbox->addWidget(leftArrow);
hbox->addWidget(rightArrow);
QVBoxLayout *layout = new QVBoxLayout;
layout->addWidget(this);
layout->setMargin(0);
layout->setSpacing(0);
layout->addWidget(m_pager);
layout->addWidget(this);
m_popupFrame->setLayout(layout);
QPalette pal = palette();
connect(leftArrow, SIGNAL(clicked()), SLOT(previousPage()));
connect(rightArrow, SIGNAL(clicked()), SLOT(nextPage()));
QPalette pal = m_popupFrame->palette();
setAutoFillBackground(true);
pal.setColor(QPalette::Background, QColor(255, 255, 220));
setPalette(pal);
m_popupFrame->setPalette(pal);
setTextFormat(Qt::RichText);
setMargin(1);
}
void FunctionArgumentWidget::showFunctionHint(Function *functionSymbol,
void FunctionArgumentWidget::showFunctionHint(QList<Function *> functionSymbols,
const LookupContext &context)
{
Q_ASSERT(!functionSymbols.isEmpty());
m_popupFrame->hide();
m_item = functionSymbol;
m_items = functionSymbols;
m_context = context;
m_startpos = m_editor->position();
m_current = 0;
// update the text
m_currentarg = -1;
update();
m_pager->setVisible(functionSymbols.size() > 1);
QPoint pos = m_editor->cursorRect().topLeft();
pos.setY(pos.y() - sizeHint().height());
pos.setY(pos.y() - m_popupFrame->sizeHint().height() - 1);
m_popupFrame->move(pos);
m_popupFrame->show();
qApp->installEventFilter(this);
}
void FunctionArgumentWidget::nextPage()
{
m_current = (m_current + 1) % m_items.size();
updateHintText();
}
void FunctionArgumentWidget::previousPage()
{
if (m_current == 0)
m_current = m_items.size() - 1;
else
--m_current;
updateHintText();
}
void FunctionArgumentWidget::update()
{
int curpos = m_editor->position();
@@ -276,22 +332,28 @@ bool FunctionArgumentWidget::eventFilter(QObject *obj, QEvent *e)
break;
}
case QEvent::WindowDeactivate:
case QEvent::Leave:
case QEvent::FocusOut:
{
if (obj != m_editor->widget())
break;
}
qDebug() << e;
close();
break;
case QEvent::MouseButtonPress:
case QEvent::MouseButtonRelease:
case QEvent::MouseButtonDblClick:
case QEvent::Wheel:
close();
case QEvent::Wheel: {
QWidget *widget = qobject_cast<QWidget *>(obj);
if (! (widget == this || m_popupFrame->isAncestorOf(widget))) {
qDebug() << e << widget;
close();
}
}
break;
default:
break;
}
return false;
}
@@ -306,8 +368,8 @@ void FunctionArgumentWidget::updateHintText()
overview.setShowReturnTypes(true);
overview.setShowArgumentNames(true);
overview.setMarkArgument(m_currentarg + 1);
QString text = overview(m_item->type(), m_item->name());
setText(text);
Function *f = currentFunction();
setText(overview(f->type(), f->name()));
}
CppCodeCompletion::CppCodeCompletion(CppModelManager *manager)
@@ -591,6 +653,8 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
o.setShowReturnTypes(true);
o.setShowArgumentNames(true);
QList<Function *> functions;
foreach (const TypeOfExpression::Result &result, results) {
FullySpecifiedType exprTy = result.first;
@@ -604,8 +668,7 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
else if (! member->identity()->isEqualTo(klass->identity()))
continue;
if (TextEditor::CompletionItem item = toCompletionItem(member)) {
item.m_text = o(member->type(), member->name());
m_completions.append(item);
functions.append(member->type()->asFunctionType());
}
}
@@ -613,7 +676,7 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
}
}
if (m_completions.isEmpty()) {
if (functions.isEmpty()) {
QSet<QString> signatures;
foreach (const TypeOfExpression::Result &p, results) {
@@ -628,18 +691,21 @@ bool CppCodeCompletion::completeConstructorOrFunction(const QList<TypeOfExpressi
continue;
signatures.insert(signature);
item.m_text = o(ty, fun->name());
m_completions.append(item);
functions.append(fun);
}
}
}
}
// If there is only one item, show the function argument widget immediately
if (m_completions.size() == 1)
complete(m_completions.takeFirst());
if (! functions.isEmpty()) {
// Recreate if necessary
if (!m_functionArgumentWidget)
m_functionArgumentWidget = new FunctionArgumentWidget;
return ! m_completions.isEmpty();
m_functionArgumentWidget->showFunctionHint(functions, typeOfExpression.lookupContext());
}
return false;
}
bool CppCodeCompletion::completeMember(const QList<TypeOfExpression::Result> &results,
@@ -1095,7 +1161,7 @@ void CppCodeCompletion::complete(const TextEditor::CompletionItem &item)
if (!m_functionArgumentWidget)
m_functionArgumentWidget = new FunctionArgumentWidget;
m_functionArgumentWidget->showFunctionHint(function, typeOfExpression.lookupContext());
m_functionArgumentWidget->showFunctionHint(QList<Function*>() << function, typeOfExpression.lookupContext());
}
} else if (m_completionOperator == T_SIGNAL || m_completionOperator == T_SLOT) {
QString toInsert = item.m_text;
@@ -1217,3 +1283,5 @@ int CppCodeCompletion::findStartOfName(int pos) const
return pos + 1;
}
#include "cppcodecompletion.moc"