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#include "profilecompletion.h"
#include "profileeditor.h"
#include "profilekeywords.h"
#include <texteditor/itexteditor.h>
#include <texteditor/completionsettings.h>
#include <cplusplus/Icons.h>
#include <QDebug>
using namespace Qt4ProjectManager::Internal;
ProFileCompletion::ProFileCompletion(QObject *parent) :
TextEditor::ICompletionCollector(parent),
m_editor(0),
m_startPosition(-1),
m_variableIcon(CPlusPlus::Icons().iconForType(CPlusPlus::Icons::VarPublicIconType)),
m_functionIcon(CPlusPlus::Icons().iconForType(CPlusPlus::Icons::FuncPublicIconType))
{
}
ProFileCompletion::~ProFileCompletion()
{
}
QList<TextEditor::CompletionItem> ProFileCompletion::getCompletions()
{
QList<TextEditor::CompletionItem> completionItems;
completions(&completionItems);
return completionItems;
}
bool ProFileCompletion::shouldRestartCompletion()
{
return false;
}
TextEditor::ITextEditable *ProFileCompletion::editor() const
{
return m_editor;
}
int ProFileCompletion::startPosition() const
{
return m_startPosition;
}
bool ProFileCompletion::supportsEditor(TextEditor::ITextEditable *editor)
{
if (qobject_cast<ProFileEditorEditable *>(editor))
return true;
return false;
}
bool ProFileCompletion::triggersCompletion(TextEditor::ITextEditable *editor)
{
m_editor = editor;
const int pos = editor->position();
if (completionSettings().m_completionTrigger == TextEditor::AutomaticCompletion) {
QChar characterUnderCursor = editor->characterAt(pos);
if (!characterUnderCursor.isLetterOrNumber()) {
m_startPosition = findStartOfName();
if (pos - m_startPosition >= 3 && !isInComment())
return true;
}
}
return false;
}
int ProFileCompletion::findStartOfName(int pos) const
{
if (pos == -1)
pos = m_editor->position();
QChar chr;
// Skip to the start of a name
do {
chr = m_editor->characterAt(--pos);
} while (chr.isLetterOrNumber() || chr == QLatin1Char('_'));
return pos + 1;
}
bool ProFileCompletion::isInComment() const
{
const int beginOfLinePosition = m_editor->position(TextEditor::ITextEditor::StartOfLine);
const QString lineBeginning = m_editor->textAt(beginOfLinePosition,
m_startPosition - beginOfLinePosition);
if (lineBeginning.contains(QLatin1Char('#')))
return true;
return false;
}
int ProFileCompletion::startCompletion(TextEditor::ITextEditable *editor)
{
m_editor = editor;
m_startPosition = findStartOfName();
return m_startPosition;
}
void ProFileCompletion::completions(QList<TextEditor::CompletionItem> *completions)
{
const int length = m_editor->position() - m_startPosition;
if (length < 0)
return;
if (isInComment())
return;
const QString key = m_editor->textAt(m_startPosition, length);
QList<TextEditor::CompletionItem> items;
QStringList keywords = ProFileKeywords::variables()
+ ProFileKeywords::functions();
// qSort(keywords);
for (int i = 0; i < keywords.count(); i++) {
TextEditor::CompletionItem item(this);
item.text = keywords[i];
item.data = QVariant::fromValue(item.text);
item.icon = ProFileKeywords::isFunction(item.text)
? m_functionIcon : m_variableIcon;
items.append(item);
}
filter(items, completions, key);
}
bool ProFileCompletion::typedCharCompletes(const TextEditor::CompletionItem &item, QChar typedChar)
{
// only '(' in case of a function
if (typedChar == QLatin1Char('(') && ProFileKeywords::isFunction(item.text))
return true;
return false;
}
void ProFileCompletion::complete(const TextEditor::CompletionItem &item, QChar typedChar)
{
Q_UNUSED(typedChar)
int replaceLength = m_editor->position() - m_startPosition;
if (replaceLength < 0)
return;
QString toInsert = item.text;
int cursorOffset = 0;
if (ProFileKeywords::isFunction(toInsert)
&& completionSettings().m_autoInsertBrackets) {
if (completionSettings().m_spaceAfterFunctionName) {
if (m_editor->textAt(m_editor->position(), 2) == QLatin1String(" (")) {
cursorOffset = 2;
} else if (m_editor->characterAt(m_editor->position()) == QLatin1Char('(')
|| m_editor->characterAt(m_editor->position()) == QLatin1Char(' ')) {
replaceLength += 1;
toInsert += QLatin1String(" (");
} else {
toInsert += QLatin1String(" ()");
cursorOffset = -1;
}
} else {
if (m_editor->characterAt(m_editor->position()) == QLatin1Char('(')) {
cursorOffset = 1;
} else {
toInsert += QLatin1String("()");
cursorOffset = -1;
}
}
}
m_editor->setCurPos(m_startPosition);
m_editor->replace(replaceLength, toInsert);
if (cursorOffset)
m_editor->setCurPos(m_editor->position() + cursorOffset);
}
bool ProFileCompletion::partiallyComplete(const QList<TextEditor::CompletionItem> &completionItems)
{
if (completionItems.count() == 1) {
complete(completionItems.first(), QChar());
return true;
}
return TextEditor::ICompletionCollector::partiallyComplete(completionItems);
}
void ProFileCompletion::cleanup()
{
}
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