Qt 5.9 | Qt Quick Controls 2 | Qt Quick Controls 2 - Text Editor | texteditor.qml Example File

Qt 5.9.2 Reference Documentation

# texteditor.qml Example File

texteditor/qml/+touch/texteditor.qml

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      import QtQuick 2.8
      import QtQuick.Controls 2.1
      import QtQuick.Controls.Material 2.1
      import QtQuick.Layouts 1.3
      import QtQuick.Window 2.0

      import io.qt.examples.texteditor 1.0

      // TODO:
      // - make designer-friendly

      ApplicationWindow {
          id: window
          visible: true
          title: document.fileName + " - Text Editor Example"

          header: ToolBar {
              leftPadding: 5

              RowLayout {
                  anchors.fill: parent
                  spacing: 0

                  ToolButton {
                      id: doneEditingButton
                      font.family: "fontello"
                      text: "\uE80A" // icon-ok
                      opacity: !textArea.readOnly ? 1 : 0
                      onClicked: textArea.readOnly = true

                      Material.foreground: Material.accent
                  }

                  Label {
                      text: qsTr("Text Editor Example")
                      font.bold: true
                      font.pixelSize: 20
                      elide: Label.ElideRight
                      Layout.fillWidth: true
                  }

                  ToolButton {
                      font.family: "fontello"
                      text: "\uF142" // icon-ellipsis-vert
                      onClicked: menu.open()

                      Menu {
                          id: menu

                          MenuItem {
                              text: qsTr("About")
                              onTriggered: aboutDialog.open()
                          }
                      }
                  }
              }
          }

          DocumentHandler {
              id: document
              document: textArea.textDocument
              cursorPosition: textArea.cursorPosition
              selectionStart: textArea.selectionStart
              selectionEnd: textArea.selectionEnd
              // textColor: TODO
              Component.onCompleted: document.load("qrc:/texteditor.html")
              onLoaded: {
                  textArea.text = text
              }
              onError: {
                  errorDialog.text = message
                  errorDialog.visible = true
              }
          }

          Flickable {
              id: flickable
              flickableDirection: Flickable.VerticalFlick
              anchors.fill: parent

              TextArea.flickable: TextArea {
                  id: textArea
                  textFormat: Qt.RichText
                  wrapMode: TextArea.Wrap
                  readOnly: true
                  persistentSelection: true
                  // Different styles have different padding and background
                  // decorations, but since this editor is almost taking up the
                  // entire window, we don't need them.
                  leftPadding: 6
                  rightPadding: 6
                  topPadding: 0
                  bottomPadding: 0
                  background: null

                  onLinkActivated: Qt.openUrlExternally(link)
              }

              ScrollBar.vertical: ScrollBar {}
          }

          footer: ToolBar {
              visible: !textArea.readOnly && textArea.activeFocus

              Material.primary: "#E0E0E0"
              Material.elevation: 0

              Flickable {
                  anchors.fill: parent
                  contentWidth: toolRow.implicitWidth
                  flickableDirection: Qt.Horizontal
                  boundsBehavior: Flickable.StopAtBounds

                  Row {
                      id: toolRow

                      ToolButton {
                          id: boldButton
                          text: "\uE800" // icon-bold
                          font.family: "fontello"
                          // Don't want to close the virtual keyboard when this is clicked.
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.bold
                          onClicked: document.bold = !document.bold
                      }
                      ToolButton {
                          id: italicButton
                          text: "\uE801" // icon-italic
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.italic
                          onClicked: document.italic = !document.italic
                      }
                      ToolButton {
                          id: underlineButton
                          text: "\uF0CD" // icon-underline
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.underline
                          onClicked: document.underline = !document.underline
                      }

                      ToolSeparator {}

                      ToolButton {
                          id: alignLeftButton
                          text: "\uE803" // icon-align-left
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.alignment == Qt.AlignLeft
                          onClicked: document.alignment = Qt.AlignLeft
                      }
                      ToolButton {
                          id: alignCenterButton
                          text: "\uE804" // icon-align-center
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.alignment == Qt.AlignHCenter
                          onClicked: document.alignment = Qt.AlignHCenter
                      }
                      ToolButton {
                          id: alignRightButton
                          text: "\uE805" // icon-align-right
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.alignment == Qt.AlignRight
                          onClicked: document.alignment = Qt.AlignRight
                      }
                      ToolButton {
                          id: alignJustifyButton
                          text: "\uE806" // icon-align-justify
                          font.family: "fontello"
                          focusPolicy: Qt.NoFocus
                          checkable: true
                          checked: document.alignment == Qt.AlignJustify
                          onClicked: document.alignment = Qt.AlignJustify
                      }
                  }
              }
          }

          RoundButton {
              id: editButton
              font.family: "fontello"
              text: "\uE809" // icon-pencil
              width: 48
              height: width
              // Don't want to use anchors for the y position, because it will anchor
              // to the footer, leaving a large vertical gap.
              y: parent.height - height - 12
              anchors.right: parent.right
              anchors.margins: 12
              visible: textArea.readOnly
              highlighted: true

              onClicked: {
                  textArea.readOnly = false
                  // Force focus on the text area so the cursor and footer show up.
                  textArea.forceActiveFocus()
              }
          }

          Dialog {
              id: aboutDialog
              standardButtons: Dialog.Ok
              modal: true
              x: parent.width / 2 - width / 2
              y: parent.height / 2 - height / 2

              contentItem: Label {
                  text: qsTr("Qt Quick Controls 2 - Text Editor Example")
              }
          }
      }