Qt 5.7 | Qt Bluetooth | Bluetooth QML Chat Example | InputBox.qml Example File

Qt 5.7.1 Reference Documentation

# InputBox.qml Example File

chat/InputBox.qml

      /****************************************************************************
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      ** Copyright (C) 2015 The Qt Company Ltd.
      ** Contact: http://www.qt.io/licensing/
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      ** This file is part of the examples of the QtBluetooth module.
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      ** $QT_BEGIN_LICENSE:BSD$
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      import QtQuick 2.2

      FocusScope {
          id: focusScope
          width: 250; height: 28

          property string text: textInput.text
          signal clear

          onClear: {
              textInput.text=""
          }

          BorderImage {
              source: "images/lineedit-bg.png"
              width: parent.width; height: parent.height
              border { left: 4; top: 4; right: 4; bottom: 4 }
          }

          Text {
              id: typeSomething
              anchors.fill: parent; anchors.leftMargin: 8
              verticalAlignment: Text.AlignVCenter
              text: "Type something..."
              color: "gray"
              font.italic: true
              font.pointSize: 14
          }

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

          TextInput {
              id: textInput
              anchors { left: parent.left; leftMargin: 8; right: clear.left; rightMargin: 8; verticalCenter: parent.verticalCenter }
              focus: true
              selectByMouse: true
              font.pointSize: 14
          }

          Image {
              id: clear
              anchors { right: parent.right; rightMargin: 8; verticalCenter: parent.verticalCenter }
              source: "images/clear.png"
              opacity: 0

              MouseArea {
                  // allow area to grow beyond image size
                  // easier to hit the area on high DPI devices
                  anchors.centerIn: parent
                  height:focusScope.height
                  width: focusScope.height
                  onClicked: {
                      //toogle focus to be able to jump out of input method composer
                      focusScope.focus = false;
                      textInput.text = '';
                      focusScope.focus = true;
                  }
              }
          }

          states: State {
              name: "hasText"; when: (textInput.text != '' || textInput.inputMethodComposing)
              PropertyChanges { target: typeSomething; opacity: 0 }
              PropertyChanges { target: clear; opacity: 1 }
          }

          transitions: [
              Transition {
                  from: ""; to: "hasText"
                  NumberAnimation { exclude: typeSomething; properties: "opacity" }
              },
              Transition {
                  from: "hasText"; to: ""
                  NumberAnimation { properties: "opacity" }
              }
          ]
      }