Add LineEditCompleter to Tab_Game

cockatrice/src/lineeditcompleter.cpp

@@ -0,0 +1,132 @@
+#include <QStringListModel>
+#include <QLineEdit>
+#include <QCompleter>
+#include <QWidget>
+#include <QTextCursor>
+#include <QAbstractItemView>
+#include <QScrollBar>
+#include <QStringListModel>
+#include <QKeyEvent>
+#include <QFocusEvent>
+#include "lineeditcompleter.h"
+
+LineEditCompleter::LineEditCompleter(QWidget *parent)
+: QLineEdit(parent)
+{
+}
+
+void LineEditCompleter::focusOutEvent(QFocusEvent * e){
+    QLineEdit::focusOutEvent(e);
+    if (c->popup()->isVisible()){
+        //Remove Popup
+        c->popup()->hide();
+        //Truncate the line to last space or whole string
+        QString textValue = text();
+        int lastIndex = textValue.length();
+        int lastWordStartIndex = textValue.lastIndexOf(" ") + 1;
+        int leftShift = qMin(lastIndex, lastWordStartIndex);
+        setText(textValue.left(leftShift));
+        //Insert highlighted line from popup
+        insert(c->completionModel()->index(c->popup()->currentIndex().row(), 0).data().toString() + " ");
+        //Set focus back to the textbox since tab was pressed
+        setFocus();
+    }
+}
+
+void LineEditCompleter::keyPressEvent(QKeyEvent * event)
+{
+    switch (event->key()){
+    case Qt::Key_Return:
+    case Qt::Key_Enter:
+    case Qt::Key_Escape:
+        if (c->popup()->isVisible()){
+            event->ignore();
+            //Remove Popup
+            c->popup()->hide();
+            //Truncate the line to last space or whole string
+            QString textValue = text();
+            int lastIndexof = textValue.lastIndexOf(" ");
+            QString finalString = textValue.left(lastIndexof);
+            //Add a space if there's a word
+            if (finalString != "")
+                finalString += " ";
+            setText(finalString);
+            return;
+        }
+        break;
+    case Qt::Key_Space:
+        if (c->popup()->isVisible()){
+            event->ignore();
+            //Remove Popup
+            c->popup()->hide();
+            //Truncate the line to last space or whole string
+            QString textValue = text();
+            int lastIndex = textValue.length();
+            int lastWordStartIndex = textValue.lastIndexOf(" ") + 1;
+            int leftShift = qMin(lastIndex, lastWordStartIndex);
+            setText(textValue.left(leftShift));
+            //Insert highlighted line from popup
+            insert(c->completionModel()->index(c->popup()->currentIndex().row(), 0).data().toString() + " ");
+            return;
+        }
+        break;
+    default:
+        break;
+    }
+
+    QLineEdit::keyPressEvent(event);
+    QString textValue = text();
+    //Wait until the first character after @
+    if (!c || text().right(1).contains("@"))
+        return;
+
+    //Set new completion prefix
+    c->setCompletionPrefix(cursorWord(text()));
+    if (c->completionPrefix().length() < 1){
+        c->popup()->hide();
+        return;
+    }
+
+    //Draw completion box
+    QRect cr = cursorRect();
+    cr.setWidth(c->popup()->sizeHintForColumn(0) + c->popup()->verticalScrollBar()->sizeHint().width());
+    c->complete(cr);
+
+    //Select first item in the completion popup
+    QItemSelectionModel* sm = new QItemSelectionModel(c->completionModel());
+    c->popup()->setSelectionModel(sm);
+    sm->select(c->completionModel()->index(0, 0), QItemSelectionModel::ClearAndSelect);
+    sm->setCurrentIndex(c->completionModel()->index(0, 0), QItemSelectionModel::NoUpdate);
+}
+
+QString LineEditCompleter::cursorWord(const QString &line) const
+{
+    return line.mid(line.left(cursorPosition()).lastIndexOf(" ") + 1,
+        cursorPosition() - line.left(cursorPosition()).lastIndexOf(" ") - 1);
+}
+
+void LineEditCompleter::insertCompletion(QString arg)
+{
+    QString s_arg = arg + " ";
+    setText(text().replace(text().left(cursorPosition()).lastIndexOf(" ") + 1,
+        cursorPosition() - text().left(cursorPosition()).lastIndexOf(" ") - 1, s_arg));
+}
+
+void LineEditCompleter::setCompleter(QCompleter* completer)
+{
+    c = completer;
+    c->setWidget(this);
+    connect(c, SIGNAL(activated(QString)), this, SLOT(insertCompletion(QString)));
+}
+
+void LineEditCompleter::setCompletionList(QStringList completionList)
+{
+    if (!c || c->popup()->isVisible())
+        return;
+
+    QStringListModel *model;
+    model = (QStringListModel*)(c->model());
+    if (model == NULL)
+        model = new QStringListModel();
+    model->setStringList(completionList);
+}