Add line edit widget with integrated clear button.

src/CMakeLists.txt

@@ -64,6 +64,7 @@ set(keepassx_SOURCES
     gui/FileDialog.cpp
     gui/IconModels.cpp
     gui/KeePass1OpenDialog.cpp
+    gui/LineEdit.cpp
     gui/MainWindow.cpp
     gui/entry/EditEntryWidget.cpp
     gui/entry/EntryAttachmentsModel.cpp
@@ -102,6 +103,7 @@ set(keepassx_MOC
     gui/EditWidget.h
     gui/EditWidgetIcons.h
     gui/IconModels.h
+    gui/LineEdit.h
     gui/MainWindow.h
     gui/entry/EditEntryWidget.h
     gui/entry/EntryAttachmentsModel.h

src/gui/LineEdit.cpp

@@ -0,0 +1,50 @@
+/****************************************************************************
+**
+** Copyright (c) 2007 Trolltech ASA <info@trolltech.com>
+**
+** Use, modification and distribution is allowed without limitation,
+** warranty, liability or support of any kind.
+**
+****************************************************************************/
+
+#include "LineEdit.h"
+
+#include <QtGui/QToolButton>
+#include <QtGui/QStyle>
+
+#include "core/DataPath.h"
+
+LineEdit::LineEdit(QWidget* parent)
+    : QLineEdit(parent)
+{
+    clearButton = new QToolButton(this);
+    clearButton->setObjectName("clearButton");
+    QIcon icon = dataPath()->icon("action", "edit-clear-locationbar-rtl");
+    clearButton->setIcon(icon);
+    clearButton->setCursor(Qt::ArrowCursor);
+    clearButton->setStyleSheet("QToolButton { border: none; padding: 0px; }");
+    clearButton->hide();
+    connect(clearButton, SIGNAL(clicked()), this, SLOT(clear()));
+    connect(this, SIGNAL(textChanged(const QString&)), this, SLOT(updateCloseButton(const QString&)));
+    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+    setStyleSheet(QString("QLineEdit { padding-right: %1px; } ")
+                  .arg(clearButton->sizeHint().width() + frameWidth + 1));
+    QSize msz = minimumSizeHint();
+    setMinimumSize(qMax(msz.width(), clearButton->sizeHint().height() + frameWidth * 2 + 2),
+                   qMax(msz.height(), clearButton->sizeHint().height() + frameWidth * 2 + 2));
+}
+
+void LineEdit::resizeEvent(QResizeEvent*)
+{
+    QSize sz = clearButton->sizeHint();
+    int frameWidth = style()->pixelMetric(QStyle::PM_DefaultFrameWidth);
+    clearButton->move(rect().right() - frameWidth - sz.width(),
+                      (rect().bottom() + 1 - sz.height())/2);
+}
+
+void LineEdit::updateCloseButton(const QString& text)
+{
+    clearButton->setVisible(!text.isEmpty());
+}
+
+

src/gui/LineEdit.h

@@ -0,0 +1,35 @@
+/****************************************************************************
+**
+** Copyright (c) 2007 Trolltech ASA <info@trolltech.com>
+**
+** Use, modification and distribution is allowed without limitation,
+** warranty, liability or support of any kind.
+**
+****************************************************************************/
+
+#ifndef KEEPASSX_LINEEDIT_H
+#define KEEPASSX_LINEEDIT_H
+
+#include <QtGui/QLineEdit>
+
+class QToolButton;
+
+class LineEdit : public QLineEdit
+{
+    Q_OBJECT
+
+public:
+    LineEdit(QWidget* parent = 0);
+
+protected:
+    void resizeEvent(QResizeEvent*);
+
+private Q_SLOTS:
+    void updateCloseButton(const QString& text);
+
+private:
+    QToolButton* clearButton;
+};
+
+#endif // KEEPASSX_LINEEDIT_H
+