ConversationPage.qml Example File | Qt Quick Controls 5.12.11

- Qt 5.12
- Qt Quick Controls
- Qt Quick Controls - Chat Tutorial
- ConversationPage.qml Example File
- Qt 5.12.11 Reference Documentation

# ConversationPage.qml Example File

chattutorial/chapter4-models/ConversationPage.qml

     /****************************************************************************
     **
     ** Copyright (C) 2017 The Qt Company Ltd.
     ** Contact: https://www.qt.io/licensing/
     **
     ** This file is part of the examples of the Qt Toolkit.
     **
     ** $QT_BEGIN_LICENSE:BSD$
     ** Commercial License Usage
     ** Licensees holding valid commercial Qt licenses may use this file in
     ** accordance with the commercial license agreement provided with the
     ** Software or, alternatively, in accordance with the terms contained in
     ** a written agreement between you and The Qt Company. For licensing terms
     ** and conditions see https://www.qt.io/terms-conditions. For further
     ** information use the contact form at https://www.qt.io/contact-us.
     **
     ** BSD License Usage
     ** Alternatively, 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 The Qt Company Ltd 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 QtQuick 2.12
     import QtQuick.Layouts 1.12
     import QtQuick.Controls 2.12

     import io.qt.examples.chattutorial 1.0

     Page {
         id: root

         property string inConversationWith

         header: ToolBar {
             ToolButton {
                 text: qsTr("Back")
                 anchors.left: parent.left
                 anchors.leftMargin: 10
                 anchors.verticalCenter: parent.verticalCenter
                 onClicked: root.StackView.view.pop()
             }

             Label {
                 id: pageTitle
                 text: inConversationWith
                 font.pixelSize: 20
                 anchors.centerIn: parent
             }
         }

         ColumnLayout {
             anchors.fill: parent

             ListView {
                 id: listView
                 Layout.fillWidth: true
                 Layout.fillHeight: true
                 Layout.margins: pane.leftPadding + messageField.leftPadding
                 displayMarginBeginning: 40
                 displayMarginEnd: 40
                 verticalLayoutDirection: ListView.BottomToTop
                 spacing: 12
                 model: SqlConversationModel {
                     recipient: inConversationWith
                 }
                 delegate: Column {
                     anchors.right: sentByMe ? parent.right : undefined
                     spacing: 6

                     readonly property bool sentByMe: model.recipient !== "Me"

                     Row {
                         id: messageRow
                         spacing: 6
                         anchors.right: sentByMe ? parent.right : undefined

                         Image {
                             id: avatar
                             source: !sentByMe ? "qrc:/" + model.author.replace(" ", "_") + ".png" : ""
                         }

                         Rectangle {
                             width: Math.min(messageText.implicitWidth + 24,
                                 listView.width - (!sentByMe ? avatar.width + messageRow.spacing : 0))
                             height: messageText.implicitHeight + 24
                             color: sentByMe ? "lightgrey" : "steelblue"

                             Label {
                                 id: messageText
                                 text: model.message
                                 color: sentByMe ? "black" : "white"
                                 anchors.fill: parent
                                 anchors.margins: 12
                                 wrapMode: Label.Wrap
                             }
                         }
                     }

                     Label {
                         id: timestampText
                         text: Qt.formatDateTime(model.timestamp, "d MMM hh:mm")
                         color: "lightgrey"
                         anchors.right: sentByMe ? parent.right : undefined
                     }
                 }

                 ScrollBar.vertical: ScrollBar {}
             }

             Pane {
                 id: pane
                 Layout.fillWidth: true

                 RowLayout {
                     width: parent.width

                     TextArea {
                         id: messageField
                         Layout.fillWidth: true
                         placeholderText: qsTr("Compose message")
                         wrapMode: TextArea.Wrap
                     }

                     Button {
                         id: sendButton
                         text: qsTr("Send")
                         enabled: messageField.length > 0
                         onClicked: {
                             listView.model.sendMessage(inConversationWith, messageField.text);
                             messageField.text = "";
                         }
                     }
                 }
             }
         }
     }