Merged feature-filter into master

filterlineedit.cpp

@@ -0,0 +1,53 @@
+#include "filterlineedit.h"
+
+#include <QStyle>
+#include <QIcon>
+
+FilterLineEdit::FilterLineEdit(QWidget *parent) :
+    QLineEdit(parent)
+{
+    clearButton = new QToolButton(this);
+    QIcon clearIcon(":/main/resources/edit-clear-locationbar-rtl.png");
+    clearButton->setIcon(clearIcon);
+    clearButton->setCursor(Qt::ArrowCursor);
+    clearButton->setStyleSheet("border:none;padding:0px");
+    clearButton->hide();
+    connect(clearButton, SIGNAL(clicked()), this, SLOT(clear()));
+    connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(updateCloseButton(const QString&)));
+}
+
+void FilterLineEdit::updateCloseButton(const QString& text)
+{
+    if(text.isEmpty() || text == tr("Filter"))
+        clearButton->setVisible(false);
+    else
+        clearButton->setVisible(true);
+}
+
+void FilterLineEdit::focusInEvent(QFocusEvent *e)
+{
+    if(this->styleSheet() == "color:gray;font-style:italic")
+        this->clear();
+
+    this->setStyleSheet(QString("color:black;font-style:normal;padding-right:%1").arg(clearButton->sizeHint().width()));
+
+    QLineEdit::focusInEvent(e);
+}
+
+void FilterLineEdit::focusOutEvent(QFocusEvent *e)
+{
+    if(this->text().isEmpty()) {
+        this->setText(tr("Filter"));
+        this->setStyleSheet("color:gray;font-style:italic");
+    }
+
+    QLineEdit::focusOutEvent(e);
+}
+
+void FilterLineEdit::resizeEvent(QResizeEvent *e)
+{
+    QSize sz = clearButton->sizeHint();
+    clearButton->move(rect().right() - sz.width(), (rect().bottom() - sz.height())/2);
+
+    QLineEdit::resizeEvent(e);
+}