LineEdit.qml Example File

 /****************************************************************************
 **
 ** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
 ** Contact: http://www.qt-project.org/legal
 **
 ** This file is part of the examples of the Qt Mobility Components.
 **
 ** $QT_BEGIN_LICENSE:BSD$
 ** You may use this file under the terms of the BSD license as follows:
 **
 ** "Redistribution and use in source and binary forms, with or without
 ** modification, are permitted provided that the following conditions are
 ** met:
 **   * Redistributions of source code must retain the above copyright
 **     notice, this list of conditions and the following disclaimer.
 **   * Redistributions in binary form must reproduce the above copyright
 **     notice, this list of conditions and the following disclaimer in
 **     the documentation and/or other materials provided with the
 **     distribution.
 **   * Neither the name of Digia Plc and its Subsidiary(-ies) nor the names
 **     of its contributors may be used to endorse or promote products derived
 **     from this software without specific prior written permission.
 **
 **
 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
 **
 ** $QT_END_LICENSE$
 **
 ****************************************************************************/

 import Qt 4.7

 Rectangle {
     property alias font: input.font
     property string text: ""
     signal textChanged(string text)

     id: lineEdit
     height: input.height + 6
     color: "transparent"

     TextInput {
         id: input
         anchors.left: parent.left
         anchors.leftMargin: 3
         anchors.top: parent.top
         anchors.topMargin: 3
         anchors.bottom: parent.bottom
         anchors.bottomMargin: 3
         color: "white"

         text: lineEdit.text
     }

     MouseArea {
         anchors.fill: parent
         onClicked: input.focus = true
     }

     states: [
         State {
             when: input.cursorVisible
             PropertyChanges { target: lineEdit; color: "white" }
             PropertyChanges { target: input; color: "black" }
         },
         State {
             when: text == ""
             PropertyChanges { target: lineEdit; border.color: "grey" }
         }
     ]

     Keys.onReturnPressed: {
         lineEdit.textChanged(input.text)
         lineEdit.focus = true
     }
     Keys.onEnterPressed: {
         lineEdit.textChanged(input.text)
         lineEdit.focus = true
     }
     Keys.onEscapePressed: {
         input.text = text
         lineEdit.focus = true
     }
 }