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Gtk: Fix label wrapping

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This commit is contained in:
Ben Olden-Cooligan 2022-12-28 20:44:35 -08:00
parent 84dee83143
commit c9a8be3341
1 changed files with 26 additions and 0 deletions
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26
NAPS2.Lib.Gtk/EtoForms/Gtk/GtkEtoPlatform.cs
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@ -66,6 +66,10 @@ public class GtkEtoPlatform : EtoPlatform
panel.Move(widget, location.X - X_OFF, location.Y - Y_OFF);
}
widget.SetSizeRequest(size.Width, size.Height);
if (widget is gtk.Bin { Child: gtk.Label { Wrap: true } label })
{
label.MaxWidthChars = EstimateCharactersWide(size.Width, label);
}
}
public override Control CreateContainer()
@ -135,6 +139,28 @@ public class GtkEtoPlatform : EtoPlatform
return new SizeF(naturalSize.Width, naturalSize.Height);
}
public override SizeF GetWrappedSize(Control control, int defaultWidth)
{
var widget = control.ToNative();
if (widget is gtk.Bin { Child: gtk.Label label })
{
label.MaxWidthChars = EstimateCharactersWide(defaultWidth, label);
label.GetPreferredSize(out var minSize, out var naturalSize);
label.GetPreferredHeightForWidth(defaultWidth, out var minHeight, out var naturalHeight);
return new SizeF(Math.Min(naturalSize.Width, defaultWidth), naturalHeight);
}
return base.GetWrappedSize(control, defaultWidth);
}
private static int EstimateCharactersWide(int pixelWidth, gtk.Label label)
{
// TODO: This could vary based on font and text. Can we do better somehow?
// Ideally we'd be able to wrap based on a pixel width. Maybe if we put the label in a container?
var fontSize = label.GetFont().Size / Pango.Scale.PangoScale;
var approxCharWidth = fontSize * 0.8;
return (int) Math.Floor(pixelWidth / approxCharWidth);
}
public override Size GetClientSize(Window window, bool excludeToolbars)
{
var gtkWindow = (gtk.Window) window.ToNative();