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Fixes issue rendering when node is collapsed and text has new lines #794
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slluis
reviewed
Mar 6, 2018
| @@ -48,7 +48,7 @@ public TreeViewEvents () | |||
| tree.Columns.Add (col); | |||
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| var node = store.AddNode ().SetValue (nodeField, new TextNode ("Root 1")); | |||
| var child = node.AddChild ().SetValue (nodeField, new TextNode ("Very long text. Very long text. Very long text. Very long text. Very long text. Very long text. Very long text. Very long text.")); | |||
| var child = node.AddChild ().SetValue (nodeField, new TextNode ($"Very long text with NewLines. {Environment.NewLine} Very long text with NewLines.{Environment.NewLine} Very long text. Very long text. Very long text. Very long text.")); | |||
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Just use "\n", no need to embed a call to Environment.NewLine.
slluis
reviewed
Mar 6, 2018
| status.LastCalculatedHeight = textSize.Height; | ||
| //in cases when there are multiple lines and they don't execeed the max width we need to care height include the expand | ||
| double height = textSize.Height; | ||
| if (!status.Expanded && textSize.Height > defaultHeight) { |
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This can be simplified. If there are multiple lines, just measure the height of the first line.
sevoku
reviewed
Mar 7, 2018
| public ExpandableTextCellView () | ||
| { | ||
| var defaultLayout = new TextLayout() { Text = "A" }; | ||
| defaultHeight = defaultLayout.GetSize().Height; |
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This won't work correctly. Because it doesn't take all possible glyphs into account. For example the height of A is smaller than the height of Ag. It's not possible to measure the final height at this point.
Better measure the first line, as proposed here: https://github.com/mono/xwt/pull/794/files#r172651546
| @@ -147,9 +164,16 @@ protected override void OnDraw (Context ctx, Rectangle cellArea) | |||
| layout.SetBackground (Colors.LightBlue, Math.Min (selectionStart, selectionEnd), Math.Abs (selectionEnd - selectionStart)); | |||
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| // Text doesn't fit. We need to render the expand icon | |||
| if (textSize.Width > cellArea.Width || textSize.Height > cellArea.Height) { | |||
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| if (textSize.Width > cellArea.Width || textSize.Height > cellArea.Height) { | |||
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ups! probably do it at the end of the day could be a great reason :)
It happens when text doesn't exceed the maxwidth and we have multiple lines because the new lines
netonjm
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Fixes issue rendering when node is collapsed and text has new lines
It happens when text doesn't exceed the maxwidth and we have
multiple lines because the new lines