| /**************************************************************************** |
| ** |
| ** Copyright (C) 2020 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of Qt Quick 3D. |
| ** |
| ** $QT_BEGIN_LICENSE:GPL$ |
| ** Commercial License Usage |
| ** Licensees holding valid commercial Qt licenses may use this file in |
| ** accordance with the commercial license agreement provided with the |
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| ** GNU General Public License Usage |
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| ** General Public License version 3 or (at your option) any later version |
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| ****************************************************************************/ |
| |
| import QtQuick 2.15 |
| import HelperWidgets 2.0 as HelperWidgets |
| |
| HelperWidgets.ComboBox { |
| id: comboBox |
| |
| property alias typeFilter: itemFilterModel.typeFilter |
| |
| manualMapping: true |
| editable: true |
| model: comboBox.addDefaultItem(itemFilterModel.itemModel) |
| |
| textInput.validator: RegExpValidator { regExp: /(^$|^[a-z_]\w*)/ } |
| |
| HelperWidgets.ItemFilterModel { |
| id: itemFilterModel |
| modelNodeBackendProperty: modelNodeBackend |
| } |
| |
| property string defaultItem: qsTr("None") |
| property string textValue: comboBox.backendValue.expression |
| property bool block: false |
| property bool dirty: true |
| property var editRegExp: /^[a-z_]\w*/ |
| |
| onTextValueChanged: { |
| if (comboBox.block) |
| return |
| |
| comboBox.setCurrentText(comboBox.textValue) |
| } |
| onModelChanged: comboBox.setCurrentText(comboBox.textValue) |
| onCompressedActivated: comboBox.handleActivate(index) |
| Component.onCompleted: comboBox.setCurrentText(comboBox.textValue) |
| |
| onEditTextChanged: { |
| comboBox.dirty = true |
| colorLogic.errorState = !(editRegExp.exec(comboBox.editText) !== null |
| || comboBox.editText === parenthesize(defaultItem)) |
| } |
| onFocusChanged: { |
| if (comboBox.dirty) |
| comboBox.handleActivate(comboBox.currentIndex) |
| } |
| |
| function handleActivate(index) |
| { |
| if (!comboBox.__isCompleted || comboBox.backendValue === undefined) |
| return |
| |
| var cText = (index === -1) ? comboBox.editText : comboBox.textAt(index) |
| comboBox.block = true |
| comboBox.setCurrentText(cText) |
| comboBox.block = false |
| } |
| |
| function setCurrentText(text) |
| { |
| if (!comboBox.__isCompleted || comboBox.backendValue === undefined) |
| return |
| |
| comboBox.currentIndex = comboBox.find(text) |
| |
| if (text === "") { |
| comboBox.currentIndex = 0 |
| comboBox.editText = parenthesize(comboBox.defaultItem) |
| } else { |
| if (comboBox.currentIndex === -1) |
| comboBox.editText = text |
| else if (comboBox.currentIndex === 0) |
| comboBox.editText = parenthesize(comboBox.defaultItem) |
| } |
| |
| if (comboBox.currentIndex === 0) { |
| comboBox.backendValue.resetValue() |
| } else { |
| if (comboBox.backendValue.expression !== comboBox.editText) |
| comboBox.backendValue.expression = comboBox.editText |
| } |
| comboBox.dirty = false |
| } |
| |
| function addDefaultItem(arr) |
| { |
| var copy = arr.slice() |
| copy.unshift(parenthesize(comboBox.defaultItem)) |
| return copy |
| } |
| |
| function parenthesize(value) |
| { |
| return "[" + value + "]" |
| } |
| } |