* 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. *
***************************************************************************/
+#include "bufferview.h"
#include "inputline.h"
-
#include "tabcompleter.h"
InputLine::InputLine(QWidget *parent)
InputLine::~InputLine() {
}
+bool InputLine::eventFilter(QObject *watched, QEvent *event) {
+ if(event->type() != QEvent::KeyPress)
+ return false;
+
+ // keys from BufferView should be sent to (and focus) the input line
+ BufferView *view = qobject_cast<BufferView *>(watched);
+ if(view) {
+ QKeyEvent *keyEvent = static_cast<QKeyEvent*>(event);
+ if(keyEvent->text().length() == 1) { // normal key press
+ QChar c = keyEvent->text().at(0);
+ if(c.isLetterOrNumber() || c.isSpace() || c.isPunct() || c.isSymbol()) {
+ setFocus();
+ keyPressEvent(keyEvent);
+ return true;
+ } else
+ return false;
+ }
+ }
+ return false;
+}
+
void InputLine::keyPressEvent(QKeyEvent * event) {
- if(event->key() == Qt::Key_Up) {
- if(idx > 0) { idx--; setText(history[idx]); }
+ switch(event->key()) {
+ case Qt::Key_Up:
event->accept();
- } else if(event->key() == Qt::Key_Down) {
- if(idx < history.count()) idx++;
- if(idx < history.count()) setText(history[idx]);
- else setText("");
+
+ addToHistory(text(), true);
+
+ if(idx > 0) {
+ idx--;
+ showHistoryEntry();
+ }
+
+ break;
+
+ case Qt::Key_Down:
event->accept();
- } else if(event->key() == Qt::Key_Select) { // for Qtopia
+
+ addToHistory(text(), true);
+
+ if(idx < history.count()) {
+ idx++;
+ if(idx < history.count() || tempHistory.contains(idx)) // tempHistory might have an entry for idx == history.count() + 1
+ showHistoryEntry();
+ else
+ resetLine(); // equals clear() in this case
+ } else {
+ addToHistory(text());
+ resetLine();
+ }
+
+ break;
+
+ case Qt::Key_Select: // for Qtopia
emit returnPressed();
- QLineEdit::keyPressEvent(event);
- } else {
+
+ default:
QLineEdit::keyPressEvent(event);
}
+}
+
+bool InputLine::addToHistory(const QString &text, bool temporary) {
+ if(text.isEmpty())
+ return false;
+
+ Q_ASSERT(0 <= idx && idx <= history.count());
+ if(history.isEmpty() || text != history[idx - (int)(idx == history.count())]) {
+ // if an entry of the history is changed, we remember it and show it again at this
+ // position until a line was actually sent
+ // sent lines get appended to the history
+ if(temporary) {
+ tempHistory[idx] = text;
+ } else {
+ history << text;
+ tempHistory.clear();
+ }
+ return true;
+ } else {
+ return false;
+ }
}
void InputLine::on_returnPressed() {
- history << text();
- idx = history.count();
+ addToHistory(text());
emit sendText(text());
- clear();
+ resetLine();
}
void InputLine::on_textChanged(QString newText) {
- QStringList lineSeperators;
- lineSeperators << QString("\r\n")
+ QStringList lineSeparators;
+ lineSeparators << QString("\r\n")
<< QString('\n')
<< QString('\r');
-
+
QString lineSep;
- foreach(QString seperator, lineSeperators) {
- if(newText.contains(seperator)) {
- lineSep = seperator;
+ foreach(QString separator, lineSeparators) {
+ if(newText.contains(separator)) {
+ lineSep = separator;
break;
}
}
if(lineSep.isEmpty())
return;
-
+
if(newText.contains(lineSep)) {
clear();
QString line = newText.section(lineSep, 0, 0);
emit returnPressed();
insert(remainder);
}
-
}
+void InputLine::resetLine() {
+ // every time the InputLine is cleared we also reset history index
+ idx = history.count();
+ clear();
+}
+
+void InputLine::showHistoryEntry() {
+ // if the user changed the history, display the changed line
+ tempHistory.contains(idx) ? setText(tempHistory[idx]) : setText(history[idx]);
+}