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/*
* This file is part of qmljs, the QML/JS language support plugin for KDevelop
* Copyright (c) 2014 Denis Steckelmacher <steckdenis@yahoo.fr>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; either version 2 of
* the License or (at your option) version 3 or any later version
* accepted by the membership of KDE e.V. (or its successor approved
* by the membership of KDE e.V.), which shall act as a proxy
* defined in Section 14 of version 3 of the license.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include "functioncalltipcompletionitem.h"
#include "../../duchain/helper.h"
#include "../../duchain/functiontype.h"
#include <language/codecompletion/codecompletionmodel.h>
#include <language/duchain/duchainutils.h>
#include <language/duchain/ducontext.h>
#include <QtGui/QIcon>
using namespace KDevelop;
using namespace QmlJS;
FunctionCalltipCompletionItem::FunctionCalltipCompletionItem(const DeclarationPointer& decl,
int depth,
int argumentIndex)
: m_declaration(decl),
m_depth(depth)
{
// Ensure that decl has a function type
if (!decl) {
return;
}
QmlJS::FunctionType::Ptr func = QmlJS::FunctionType::Ptr::dynamicCast(decl->abstractType());
if (!func) {
return;
}
// Arguments can be fetch from the function declaration (if available), or
// from its function type
Declaration* funcDecl = func->declaration(decl->topContext());
DUContext* argsContext = (funcDecl ? funcDecl->internalContext() : nullptr);
QStringList arguments;
if (argsContext) {
auto args = argsContext->allDeclarations(CursorInRevision::invalid(), decl->topContext(), false);
for (auto pair : args) {
arguments.append(pair.first->toString());
}
if (argumentIndex < args.count()) {
m_currentArgumentType = args.at(argumentIndex).first->abstractType();
}
} else {
for (auto type : func->arguments()) {
arguments.append(type->toString());
}
if (argumentIndex < func->arguments().count()) {
m_currentArgumentType = func->arguments().at(argumentIndex);
}
}
// [type] functionName
if (func->returnType()) {
m_prefix = func->returnType()->toString() + QLatin1String(" ");
}
m_prefix += decl->identifier().toString();
// (arg1, arg2, [currentArgument in m_currentArgument], arg4, arg5)
m_arguments = QLatin1String("(");
for (int i=0; i<arguments.count(); ++i) {
if (i > 0) {
m_arguments += QLatin1String(", ");
}
if (i == argumentIndex) {
m_currentArgumentStart = m_arguments.length();
m_currentArgumentLength = arguments.at(i).length();
}
m_arguments += arguments.at(i);
}
m_arguments += QLatin1String(")");
}
AbstractType::Ptr FunctionCalltipCompletionItem::currentArgumentType() const
{
return m_currentArgumentType;
}
QVariant FunctionCalltipCompletionItem::data(const QModelIndex& index, int role, const CodeCompletionModel* model) const
{
Q_UNUSED(model)
switch (role) {
case Qt::DisplayRole:
switch (index.column()) {
case CodeCompletionModel::Prefix:
return m_prefix;
case CodeCompletionModel::Arguments:
return m_arguments;
}
break;
case CodeCompletionModel::ArgumentHintDepth:
return argumentHintDepth();
case CodeCompletionModel::CompletionRole:
return (int)completionProperties();
case CodeCompletionModel::HighlightingMethod:
if (index.column() == CodeCompletionModel::Arguments) {
return (int)CodeCompletionModel::CustomHighlighting;
}
break;
case CodeCompletionModel::CustomHighlight:
if (index.column() == CodeCompletionModel::Arguments) {
QTextFormat format;
format.setBackground(QBrush(QColor::fromRgb(142, 186, 255))); // Same color as kdev-python
format.setProperty(QTextFormat::FontWeight, 99);
return QVariantList()
<< m_currentArgumentStart
<< m_currentArgumentLength
<< format;
}
break;
case Qt::DecorationRole:
if (index.column() == CodeCompletionModel::Prefix) {
return DUChainUtils::iconForProperties(completionProperties());
}
break;
}
return QVariant();
}
DeclarationPointer FunctionCalltipCompletionItem::declaration() const
{
return m_declaration;
}
int FunctionCalltipCompletionItem::argumentHintDepth() const
{
return m_depth;
}
int FunctionCalltipCompletionItem::inheritanceDepth() const
{
return 0;
}
CodeCompletionModel::CompletionProperties FunctionCalltipCompletionItem::completionProperties() const
{
return CodeCompletionModel::Function;
}
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