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{"id":89,"date":"2017-01-10T21:37:22","date_gmt":"2017-01-10T19:37:22","guid":{"rendered":"https:\/\/edvin.town\/?p=89"},"modified":"2022-03-16T16:10:22","modified_gmt":"2022-03-16T14:10:22","slug":"tornadofx-advanced-tableview-editing","status":"publish","type":"post","link":"https:\/\/edvin.town\/tornadofx-advanced-tableview-editing\/","title":{"rendered":"TornadoFX Advanced TableView Editing"},"content":{"rendered":"<p>Yesterday I started working on an editable orderline grid for the TornadoFX version of our CRM system, which we are currently porting from HTML5. I ran across some issues with the default JavaFX TableView control, and I wanted to share these issues and their solution with you.<\/p>\n<p>The experience spawned several new features, which will be in the TornadoFX 1.5.10 release scheduled for release this week.<\/p>\n<p><iframe loading=\"lazy\" width=\"840\" height=\"473\" src=\"https:\/\/www.youtube.com\/embed\/qdOqTDtsS3k\" frameborder=\"0\" allowfullscreen><\/iframe><\/p>\n<p>The most interesting feature displayed is the type safe way to construct select bindings, or deeply nested, editable properties. This has a number of handy use cases, some of which is showcased in this screencast.<\/p>\n<p>This example shows you how to create a writeable property for the <code>Orderline -&gt; Product -&gt; Id<\/code> property in the example data model:<\/p>\n<pre><code class=\"language-java\">class Orderline {\n    val productProperty = SimpleObjectProperty&lt;Product&gt;()\n    val productIdProperty = productProperty.select(Product::idProperty)\n} <\/code><\/pre>\n<p>You can use the <code>productIdProperty<\/code> as a completely normal <code>Property&lt;Int&gt;<\/code>. These type safe select bindings even let you swap out any property in the select chain and the resulting property will still work and do the right thing.<\/p>\n<p>The code for the OrderlineEditor as shown in the video looks like this:<\/p>\n<pre><code class=\"language-java\">class OrderlinesEditor : Fragment() {\n    val order: OrderModel by inject()\n    val orderline: OrderlineModel by inject()\n\n    val orderController: OrderController by inject()\n\n    override val root = tableview(order.orderlines.value) {\n        column(\"Product\", Orderline::productId).fixedWidth(70)\n        column(\"Text\", Orderline::textProperty).remainingWidth().makeEditable()\n        column(\"Price\", Orderline::priceProperty).fixedWidth(70).makeEditable(AmountConverter).addClass(right)\n        column(\"Price Inc\", Orderline::priceIncProperty).fixedWidth(70).makeEditable(AmountConverter).addClass(right)\n        column(\"Qty\", Orderline::qtyProperty).fixedWidth(50).makeEditable(LocaleAwareBigDecimalStringConverter()).addClass(center)\n        column(\"Vat\", Orderline::vatFactorProperty).fixedWidth(50).makeEditable(LocaleAwareBigDecimalStringConverter()).addClass(right)\n        column(\"Sum\", Orderline::sum).converter(AmountConverter).fixedWidth(70).addClass(right, bold)\n        column(\"Sum Inc\", Orderline::sumInc).converter(AmountConverter).addClass(right, bold)\n\n        enableCellEditing()\n        regainFocusAfterEdit()\n        bindSelected(orderline)\n\n        onEditCommit {\n            orderController.updateOrderline(it)\n        }\n\n        columnResizePolicy = SmartResize.POLICY\n    }\n\n}<\/code><\/pre>\n<p>You might wonder why the <code>AmountConverter<\/code> is not instantiated like the others? I just call <code>converter(AmountConverter)<\/code> instead of <code>converter(AmountConverter()<\/code> as you would expect. This converter has no shared state, so I didn't see a reason to create multiple versions of it. Therefor I elected to make it an <code>object<\/code>:<\/p>\n<pre><code class=\"language-java\">object AmountConverter : StringConverter&lt;Amount&gt;() {\n    override fun toString(amount: Amount?) = amount?.toNorwegianString()\n    override fun fromString(string: String?) = if (string == null) null else Amount.of(string)\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>Yesterday I started working on an editable orderline grid for the TornadoFX version of our CRM system, which we are currently porting from HTML5. I ran across some issues with the default JavaFX TableView control, and I wanted to share these issues and their solution with you. The experience spawned several new features, which will &hellip;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/posts\/89"}],"collection":[{"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/comments?post=89"}],"version-history":[{"count":8,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/posts\/89\/revisions"}],"predecessor-version":[{"id":97,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/posts\/89\/revisions\/97"}],"wp:attachment":[{"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/media?parent=89"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/categories?post=89"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/edvin.town\/wp-json\/wp\/v2\/tags?post=89"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}