Just a couple of queries:
1) Is it possible to incorporate two different text fonts and an image into a NatTable cell?
2) How can the margins be set up like in the example image below?
In different scenarios:
a) Through Java 1.6 (without RichTexCellEditor or CSS).
b) Via Java 1.7 (using RichTexCellEditor, no CSS).
c) Utilizing Java 1.8 (employing RichTexCellEditor and CSS).
Your help is greatly appreciated.
ICellPainter.PaddingDecorator.CellPainterDecorator that includes a base painter for the text and uses an additional ImagePainter.RichTextCellPainter within the NatTable Nebula Extension, requiring Java 1.7.So the answer to a) is: NatTable Core does not support rendering text with two different fonts, hence a custom ICellPainter implementation is necessary to achieve this.
Regarding b), a complex painter should be created and registered as follows:
configRegistry.registerConfigAttribute(
CellConfigAttributes.CELL_PAINTER,
new BackgroundPainter(
new PaddingDecorator(
new CellPainterDecorator(
new PaddingDecorator(new RichTextCellPainter(), 10, 0, 0, 0),
CellEdgeEnum.LEFT,
new ImagePainter()),
2, 5, 2, 5)),
DisplayMode.NORMAL,
ColumnLabelAccumulator.COLUMN_LABEL_PREFIX + 0);
This example assumes that column labels have been applied using the ColumnLabelAccumulator, and the painter configuration is specifically for the first column. Additionally, ensure that the CellStyleAttributes.IMAGE attribute is set for the respective cell to be rendered by the ImagePainter. If the image is fixed, it should be provided as a constructor parameter.
As for the content, it must include the necessary HTML markup for displaying different fonts, like so:
<p><strong><span style="font-size:14px">This is a test</span></strong></p>
<p><span style="color:rgb(128, 128, 128)"><span style="font-size:12px">This is a test</span></span></p>
For c), achieving the complex painter structure shown earlier is not feasible with CSS due to limitations such as configuring multiple paddings, which is unsupported in NatTable CSS. Moreover, the RichTextPainter is not native to the E4 Extension and has to be manually registered to the CellPainterFactory like below:
CellPainterFactory.getInstance().registerContentPainter(
"richtext",
(painterProperties, underlying) -> {
return new RichTextCellPainter();
});
Additional considerations need to be made for handling extra attributes along with this registration.
Thus, the CSS implementation would resemble something as shown below:
painter: background padding decorator richtext;
decoration: left url('./nebula_logo_16.png') 5 true;
padding: 2 5;
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