public TreeNode(ThemeConfig theme, bool useIcon = true, TreeNode nodeParent = null)
: base(FlowDirection.TopToBottom)
{
this.HAnchor = HAnchor.Fit | HAnchor.Left;
this.VAnchor = VAnchor.Fit;
this.NodeParent = nodeParent;
this.TitleBar = new FlowLayoutWidget();
this.TitleBar.Click += (s, e) =>
{
if (TreeView != null)
{
TreeView.SelectedNode = this;
}
this.TreeView.NotifyItemClicked(this.TitleBar, e);
};
this.TitleBar.MouseDown += (s, e) =>
{
if (TreeView != null &&
e.Button == MouseButtons.Left &&
e.Clicks == 2)
{
TreeView.SelectedNode = this;
this.TreeView.NotifyItemDoubleClicked(this.TitleBar, e);
}
};
this.AddChild(this.TitleBar);
// add a check box
expandWidget = new TreeExpandWidget(theme)
{
Expandable = GetNodeCount(false) != 0,
VAnchor = VAnchor.Fit | VAnchor.Center,
Height = 16,
Width = 16
};
expandWidget.Click += (s, e) =>
{
this.Expanded = !this.Expanded;
expandWidget.Expanded = this.Expanded;
};
this.TitleBar.AddChild(expandWidget);
this.HighlightRegion = new FlowLayoutWidget()
{
VAnchor = VAnchor.Fit,
HAnchor = HAnchor.Fit,
Padding = useIcon ? new BorderDouble(2) : new BorderDouble(4, 2),
Selectable = false
};
this.TitleBar.AddChild(this.HighlightRegion);
// add a check box
if (useIcon)
{
_image = new ImageBuffer(16, 16);
this.HighlightRegion.AddChild(imageWidget = new ImageWidget(this.Image, listenForImageChanged: false)
{
VAnchor = VAnchor.Center,
Margin = new BorderDouble(right: 4),
Selectable = false
});
}
this.HighlightRegion.AddChild(textWidget = new TextWidget(this.Text, pointSize: theme.DefaultFontSize, textColor: theme.TextColor)
{
Selectable = false,
AutoExpandBoundsToText = true,
VAnchor = VAnchor.Center
});
content = new FlowLayoutWidget(FlowDirection.TopToBottom)
{
HAnchor = HAnchor.Fit | HAnchor.Left,
Visible = false, // content starts out not visible
Name = "content",
Margin = new BorderDouble(12, 3),
};
this.AddChild(content);
// Register listeners
this.Nodes.CollectionChanged += this.Nodes_CollectionChanged;
}
public TreeNode(ThemeConfig theme, bool useIcon = true)
: base(FlowDirection.TopToBottom)
{
this.HAnchor = HAnchor.Fit | HAnchor.Left;
this.VAnchor = VAnchor.Fit;
this.TitleBar = new FlowLayoutWidget();
this.TitleBar.Click += (s, e) =>
{
if (TreeView != null)
{
TreeView.SelectedNode = this;
}
this.TreeView.NotifyItemClicked(this.TitleBar, e);
};
this.AddChild(this.TitleBar);
// add a check box
expandWidget = new TreeExpandWidget(theme)
{
Expandable = GetNodeCount(false) != 0,
VAnchor = VAnchor.Fit,
Height = 16,
Width = 16
};
var expandCheckBox = new CheckBox(expandWidget)
{
Checked = this.Expanded,
VAnchor = VAnchor.Center,
};
this.ExpandedChanged += (s, e) =>
{
expandWidget.Expanded = this.Expanded;
expandCheckBox.Checked = this.Expanded;
};
expandCheckBox.CheckedStateChanged += (s, e) =>
{
Expanded = expandCheckBox.Checked;
};
this.TitleBar.AddChild(expandCheckBox);
this.HighlightRegion = new FlowLayoutWidget()
{
VAnchor = VAnchor.Fit,
HAnchor = HAnchor.Fit,
Padding = useIcon ? 0 : new BorderDouble(4, 2),
Selectable = false
};
this.TitleBar.AddChild(this.HighlightRegion);
// add a check box
if (useIcon)
{
_image = new ImageBuffer(16, 16);
this.HighlightRegion.AddChild(imageWidget = new ImageWidget(this.Image)
{
VAnchor = VAnchor.Center,
BackgroundColor = new Color(theme.Colors.PrimaryTextColor, 12),
Margin = 2,
Selectable = false
});
}
;
this.HighlightRegion.AddChild(textWidget = new TextWidget(this.Text, pointSize: theme.DefaultFontSize, textColor: theme.Colors.PrimaryTextColor)
{
Selectable = false,
AutoExpandBoundsToText = true,
VAnchor = VAnchor.Center
});
content = new FlowLayoutWidget(FlowDirection.TopToBottom)
{
HAnchor = HAnchor.Fit | HAnchor.Left,
Visible = false, // content starts out not visible
Name = "content",
Margin = new BorderDouble(12, 3),
};
AddChild(content);
Nodes.CollectionChanged += (s, e) => isDirty = true;
}
