diff options
Diffstat (limited to 'src/attributes/mod.rs')
| -rw-r--r-- | src/attributes/mod.rs | 832 |
1 files changed, 821 insertions, 11 deletions
diff --git a/src/attributes/mod.rs b/src/attributes/mod.rs index ea4427a..450440e 100644 --- a/src/attributes/mod.rs +++ b/src/attributes/mod.rs @@ -330,17 +330,12 @@ pub trait AttributeStatement<'a> { if self.get_attributes().is_empty() { return String::from(""); } - let mut dot_string = format!("{} [", self.get_attribute_statement_type()); - let attributes = &self.get_attributes(); - let mut iter = attributes.iter(); - let first = iter.next().unwrap(); - dot_string.push_str(format!("{}={}", first.0, first.1.dot_string()).as_str()); - for (key, value) in iter { - dot_string.push_str(", "); - dot_string.push_str(format!("{}={}", key, value.dot_string()).as_str()); - } - dot_string.push_str("];"); - dot_string.to_string() + + format!( + "{}{};", + self.get_attribute_statement_type(), + fmt_attributes(self.get_attributes()) + ) } } @@ -399,6 +394,14 @@ pub trait GraphAttributes<'a> { self.add_attribute("clusterrank", AttributeText::from(cluster_rank)) } + /// Basic drawing color for graphics, not text. For the latter, use the fontcolor attribute. + /// If any fraction is used, the colors are drawn in series, with each color being given + /// roughly its specified fraction of the edge. + fn color(&mut self, color: Color<'a>) -> &mut Self { + Attributes::color(self.get_attributes_mut(), color); + self + } + /// This attribute specifies a color scheme namespace: the context for interpreting color names. /// In particular, if a color value has form "xxx" or "//xxx", then the color xxx will be evaluated /// according to the current color scheme. If no color scheme is set, the standard X11 naming is used. @@ -1159,6 +1162,813 @@ impl Attributes { } } +pub trait NodeAttributes<'a> { + // TODO: constrain + /// Indicates the preferred area for a node or empty cluster when laid out by patchwork. + /// default: 1.0, minimum: >0 + fn area(&mut self, area: f32) -> &mut Self { + self.add_attribute("area", AttributeText::from(area)) + } + + /// Classnames to attach to the node’s SVG element. + /// Combine with stylesheet for styling SVG output using CSS classnames. + /// Multiple space-separated classes are supported. + fn class(&mut self, class: String) -> &mut Self { + Attributes::class(self.get_attributes_mut(), class); + self + } + + /// Basic drawing color for graphics, not text. For the latter, use the fontcolor attribute. + fn color(&mut self, color: Color<'a>) -> &mut Self { + Attributes::color(self.get_attributes_mut(), color); + self + } + + /// This attribute specifies a color scheme namespace: the context for interpreting color names. + /// In particular, if a color value has form "xxx" or "//xxx", then the color xxx will be evaluated + /// according to the current color scheme. If no color scheme is set, the standard X11 naming is used. + /// For example, if colorscheme=bugn9, then color=7 is interpreted as color="/bugn9/7". + fn color_scheme(&mut self, color_scheme: String) -> &mut Self { + Attributes::color_scheme(self.get_attributes_mut(), color_scheme); + self + } + + /// Comments are inserted into output. Device-dependent + fn comment(&mut self, comment: String) -> &mut Self { + Attributes::comment(self.get_attributes_mut(), comment); + self + } + + /// Distortion factor for shape=polygon. + /// Positive values cause top part to be larger than bottom; negative values do the opposite. + fn distortion(&mut self, distortion: f32) -> &mut Self { + self.add_attribute("distortion", AttributeText::from(distortion)) + } + + /// Color used to fill the background of a node or cluster assuming style=filled, or a filled arrowhead. + fn fill_color(&mut self, fill_color: Color<'a>) -> &mut Self { + Attributes::fill_color(self.get_attributes_mut(), fill_color); + self + } + + /// Color used to fill the background, with a gradient, of a node or cluster assuming + /// style=filled, or a filled arrowhead. + fn fill_color_with_colorlist(&mut self, fill_colors: ColorList<'a>) -> &mut Self { + Attributes::fill_color_with_colorlist(self.get_attributes_mut(), fill_colors); + self + } + + /// Color used to fill the background, with a gradient, of a node or cluster assuming + /// style=filled, or a filled arrowhead. + /// TODO: example + fn fill_color_with_iter<I>(&mut self, fill_colors: I) -> &mut Self + where + I: IntoIterator, + I::Item: IntoWeightedColor<'a>, + { + Attributes::fill_color_with_iter(self.get_attributes_mut(), fill_colors); + self + } + + /// If true, the node size is specified by the values of the width and height attributes only and + /// is not expanded to contain the text label. + /// There will be a warning if the label (with margin) cannot fit within these limits. + /// If false, the size of a node is determined by smallest width and height needed to contain its label + /// and image, if any, with a margin specified by the margin attribute. + fn fixed_size(&mut self, fixed_size: bool) -> &mut Self { + self.add_attribute("fixedsize", AttributeText::from(fixed_size)) + } + + /// Color used for text. + fn font_color(&mut self, font_color: Color<'a>) -> &mut Self { + Attributes::font_color(self.get_attributes_mut(), font_color); + self + } + + /// Font used for text. + fn font_name(&mut self, font_name: String) -> &mut Self { + Attributes::font_name(self.get_attributes_mut(), font_name); + self + } + + /// Font size, in points, used for text. + /// default: 14.0, minimum: 1.0 + fn font_size(&mut self, font_size: f32) -> &mut Self { + Attributes::font_size(self.get_attributes_mut(), font_size); + self + } + + /// If a gradient fill is being used, this determines the angle of the fill. + fn gradient_angle(&mut self, gradient_angle: u32) -> &mut Self { + Attributes::gradient_angle(self.get_attributes_mut(), gradient_angle); + self + } + + /// If the end points of an edge belong to the same group, i.e., have the same group attribute, + /// parameters are set to avoid crossings and keep the edges straight. + fn group(&mut self, group: String) -> &mut Self { + self.add_attribute("group", AttributeText::attr(group)) + } + + // TODO: constrain + /// Height of node, in inches. + /// default: 0.5, minimum: 0.02 + fn height(&mut self, height: f32) -> &mut Self { + self.add_attribute("height", AttributeText::from(height)) + } + + /// Gives the name of a file containing an image to be displayed inside a node. + /// The image file must be in one of the recognized formats, + /// typically JPEG, PNG, GIF, BMP, SVG, or Postscript, and be able to be converted + /// into the desired output format. + fn image(&mut self, image: String) -> &mut Self { + self.add_attribute("image", AttributeText::quoted(image)) + } + + /// Controls how an image is positioned within its containing node. + /// Only has an effect when the image is smaller than the containing node. + fn image_pos(&mut self, image_pos: ImagePosition) -> &mut Self { + self.add_attribute("imagepos", AttributeText::from(image_pos)) + } + + /// Controls how an image fills its containing node. + fn image_scale_bool(&mut self, image_scale: bool) -> &mut Self { + self.add_attribute("imagescale", AttributeText::from(image_scale)) + } + + /// Controls how an image fills its containing node. + fn image_scale(&mut self, image_scale: ImageScale) -> &mut Self { + self.add_attribute("imagescale", AttributeText::from(image_scale)) + } + + /// Text label attached to objects. + fn label<S: Into<Cow<'a, str>>>(&mut self, text: S) -> &mut Self { + self.add_attribute("label", AttributeText::quoted(text)) + } + + // Vertical placement of labels for nodes, root graphs and clusters. + // For graphs and clusters, only labelloc=t and labelloc=b are allowed, corresponding to placement at the top and bottom, respectively. + // By default, root graph labels go on the bottom and cluster labels go on the top. + // Note that a subgraph inherits attributes from its parent. Thus, if the root graph sets labelloc=b, the subgraph inherits this value. + // For nodes, this attribute is used only when the height of the node is larger than the height of its label. + // If labelloc=t, labelloc=c, labelloc=b, the label is aligned with the top, centered, or aligned with the bottom of the node, respectively. + // By default, the label is vertically centered. + fn label_location(&mut self, label_location: LabelLocation) -> &mut Self { + Attributes::label_location(self.get_attributes_mut(), label_location); + self + } + + /// Specifies layers in which the node, edge or cluster is present. + fn layer(&mut self, layer: String) -> &mut Self { + Attributes::layer(self.get_attributes_mut(), layer); + self + } + + /// Sets x and y margins of canvas, in inches. + /// Both margins are set equal to the given value. + /// See [`crate::NodeAttributes::margin_point`] + fn margin(&mut self, margin: f32) -> &mut Self { + self.margin_point(Point::new_2d(margin, margin)) + } + + /// Sets x and y margins of canvas, in inches. + /// Specifies space left around the node’s label. + /// Note that the margin is not part of the drawing but just empty space left around the drawing. + /// The margin basically corresponds to a translation of drawing, as would be necessary to + /// center a drawing on a page. + /// Nothing is actually drawn in the margin. + /// To actually extend the background of a drawing, see the pad attribute. + /// Whilst it is possible to create a Point value with either a third co-ordinate + /// or a forced position, these are ignored for printing. + /// By default, the value is 0.11,0.055. + fn margin_point(&mut self, margin: Point) -> &mut Self { + Attributes::margin(self.get_attributes_mut(), margin); + self + } + + /// By default, the justification of multi-line labels is done within the largest context that makes sense. + /// Thus, in the label of a polygonal node, a left-justified line will align with the left side of the node (shifted by the prescribed margin). + /// In record nodes, left-justified line will line up with the left side of the enclosing column of fields. + /// If nojustify=true, multi-line labels will be justified in the context of itself. + /// For example, if nojustify is set, the first label line is long, and the second is shorter and left-justified, + /// the second will align with the left-most character in the first line, regardless of how large the node might be. + fn no_justify(&mut self, no_justify: bool) -> &mut Self { + Attributes::no_justify(self.get_attributes_mut(), no_justify); + self + } + + /// If ordering="out", then the outedges of a node, that is, edges with the node as its tail + /// node, must appear left-to-right in the same order in which they are defined in the input. + /// + /// If ordering="in", then the inedges of a node must appear left-to-right in the same order in + /// which they are defined in the input. + /// + /// If defined as a graph or subgraph attribute, the value is applied to all nodes in the graph + /// or subgraph. + /// + /// Note that the graph attribute takes precedence over the node attribute. + fn ordering(&mut self, ordering: Ordering) -> &mut Self { + Attributes::ordering(self.get_attributes_mut(), ordering); + self + } + + // TODO: constrain to 0 - 360. Docs say min is 360 which should be max right? + /// Angle, in degrees, to rotate polygon node shapes. + /// For any number of polygon sides, 0 degrees rotation results in a flat base. + /// Used only if rotate is not defined. + /// Default: 0.0 and minimum: 360.0 + fn orientation(&mut self, orientation: f32) -> &mut Self { + Attributes::orientation(self.get_attributes_mut(), orientation); + self + } + + /// Specifies the width of the pen, in points, used to draw lines and curves, + /// including the boundaries of edges and clusters. + /// default: 1.0, minimum: 0.0 + fn pen_width(&mut self, pen_width: f32) -> &mut Self { + Attributes::pen_width(self.get_attributes_mut(), pen_width); + self + } + + /// Set number of peripheries used in polygonal shapes and cluster boundaries. + fn peripheries(&mut self, peripheries: u32) -> &mut Self { + self.add_attribute("penwidth", AttributeText::from(peripheries)) + } + + /// Position of node, or spline control points. + /// the position indicates the center of the node. On output, the coordinates are in points. + fn pos(&mut self, pos: Point) -> &mut Self { + Attributes::pos(self.get_attributes_mut(), pos); + self + } + + // TODO: add post_spline + + /// Rectangles for fields of records, in points. + fn rects(&mut self, rect: Rectangle) -> &mut Self { + self.add_attribute("rects", AttributeText::from(rect)) + } + + /// If true, force polygon to be regular, i.e., the vertices of the polygon will + /// lie on a circle whose center is the center of the node. + fn regular(&mut self, regular: bool) -> &mut Self { + self.add_attribute("regular", AttributeText::from(regular)) + } + + /// Gives the number of points used for a circle/ellipse node. + fn sample_points(&mut self, sample_points: u32) -> &mut Self { + self.add_attribute("samplepoints", AttributeText::from(sample_points)) + } + + /// Sets the shape of a node. + fn shape(&mut self, shape: Shape) -> &mut Self { + self.add_attribute("shape", AttributeText::from(shape)) + } + + // TODO: constrain + /// Print guide boxes in PostScript at the beginning of routesplines if showboxes=1, or at the end if showboxes=2. + /// (Debugging, TB mode only!) + /// default: 0, minimum: 0 + fn show_boxes(&mut self, show_boxes: u32) -> &mut Self { + Attributes::show_boxes(self.get_attributes_mut(), show_boxes); + self + } + + /// Number of sides when shape=polygon. + fn sides(&mut self, sides: u32) -> &mut Self { + self.add_attribute("sides", AttributeText::from(sides)) + } + + // TODO: constrain + /// Skew factor for shape=polygon. + /// Positive values skew top of polygon to right; negative to left. + /// default: 0.0, minimum: -100.0 + fn skew(&mut self, skew: f32) -> &mut Self { + self.add_attribute("skew", AttributeText::from(skew)) + } + + /// If packmode indicates an array packing, sortv specifies an insertion order + /// among the components, with smaller values inserted first. + /// default: 0, minimum: 0 + fn sortv(&mut self, sortv: u32) -> &mut Self { + Attributes::sortv(self.get_attributes_mut(), sortv); + self + } + + /// Set style information for components of the graph. + fn style(&mut self, style: NodeStyle) -> &mut Self { + Attributes::style(self.get_attributes_mut(), Styles::Node(style)); + self + } + + /// If the object has a URL, this attribute determines which window of the browser is used for the URL. + fn target(&mut self, target: String) -> &mut Self { + Attributes::target(self.get_attributes_mut(), target); + self + } + + /// Tooltip annotation attached to the node or edge. + /// If unset, Graphviz will use the object’s label if defined. + /// Note that if the label is a record specification or an HTML-like label, + /// the resulting tooltip may be unhelpful. + /// In this case, if tooltips will be generated, the user should set a tooltip attribute explicitly. + fn tooltip(&mut self, tooltip: String) -> &mut Self { + Attributes::tooltip(self.get_attributes_mut(), tooltip); + self + } + + /// Hyperlinks incorporated into device-dependent output. + fn url(&mut self, url: String) -> &mut Self { + Attributes::url(self.get_attributes_mut(), url); + self + } + + /// Sets the coordinates of the vertices of the node’s polygon, in inches. + /// A list of points, separated by spaces. + fn vertices(&mut self, vertices: String) -> &mut Self { + self.add_attribute("vertices", AttributeText::quoted(vertices)) + } + + /// Width of node, in inches. + /// This is taken as the initial, minimum width of the node. + /// If fixedsize is true, this will be the final width of the node. + /// Otherwise, if the node label requires more width to fit, the node’s + /// width will be increased to contain the label. + fn width(&mut self, width: f32) -> &mut Self { + self.add_attribute("width", AttributeText::from(width)) + } + + /// External label for a node or edge. + /// The label will be placed outside of the node but near it. + /// These labels are added after all nodes and edges have been placed. + /// The labels will be placed so that they do not overlap any node or label. + /// This means it may not be possible to place all of them. + /// To force placing all of them, set forcelabels=true. + fn xlabel(&mut self, xlabel: String) -> &mut Self { + Attributes::xlabel(self.get_attributes_mut(), xlabel); + self + } + + /// Position of an exterior label, in points. + /// The position indicates the center of the label. + fn xlp(&mut self, xlp: Point) -> &mut Self { + Attributes::xlp(self.get_attributes_mut(), xlp); + self + } + + /// Add an attribute to the node. + fn add_attribute<S: Into<String>>( + &mut self, + key: S, + value: AttributeText<'a>, + ) -> &mut Self; + + /// Add multiple attribures to the node. + fn add_attributes( + &'a mut self, + attributes: HashMap<String, AttributeText<'a>>, + ) -> &mut Self; + + fn get_attributes_mut(&mut self) -> &mut IndexMap<String, AttributeText<'a>>; +} + +pub trait EdgeAttributes<'a> { + /// Style of arrowhead on the head node of an edge. + /// This will only appear if the dir attribute is forward or both. + fn arrow_head(&mut self, arrowhead: ArrowType) -> &mut Self { + self.add_attribute("arrowhead", AttributeText::from(arrowhead)) + } + + // TODO: constrain + /// Multiplicative scale factor for arrowheads. + /// default: 1.0, minimum: 0.0 + fn arrow_size(&mut self, arrow_size: f32) -> &mut Self { + self.add_attribute("arrowsize", AttributeText::from(arrow_size)) + } + + /// Style of arrowhead on the tail node of an edge. + /// This will only appear if the dir attribute is back or both. + fn arrowtail(&mut self, arrowtail: ArrowType) -> &mut Self { + self.add_attribute("arrowtail", AttributeText::from(arrowtail)) + } + + /// Classnames to attach to the edge’s SVG element. + /// Combine with stylesheet for styling SVG output using CSS classnames. + /// Multiple space-separated classes are supported. + fn class(&mut self, class: String) -> &mut Self { + Attributes::class(self.get_attributes_mut(), class); + self + } + + /// Basic drawing color for graphics, not text. For the latter, use the fontcolor attribute. + /// If any fraction is used, the colors are drawn in series, with each color being given + /// roughly its specified fraction of the edge. + fn color(&mut self, color: Color<'a>) -> &mut Self { + Attributes::color(self.get_attributes_mut(), color); + self + } + + /// Basic drawing color for graphics, not text. For the latter, use the fontcolor attribute. + /// if colorList has no fractions, the edge is drawn using parallel splines or lines, + /// one for each color in the list, in the order given. + /// The head arrow, if any, is drawn using the first color in the list, and the tail + /// arrow, if any, the second color. This supports the common case of drawing opposing edges, + /// but using parallel splines instead of separately routed multiedges. + /// If any fraction is used, the colors are drawn in series, with each color being given + /// roughly its specified fraction of the edge. + fn color_with_colorlist(&mut self, color: ColorList<'a>) -> &mut Self { + Attributes::color_with_colorlist(self.get_attributes_mut(), color); + self + } + + /// This attribute specifies a color scheme namespace: the context for interpreting color names. + /// In particular, if a color value has form "xxx" or "//xxx", then the color xxx will be evaluated + /// according to the current color scheme. If no color scheme is set, the standard X11 naming is used. + /// For example, if colorscheme=bugn9, then color=7 is interpreted as color="/bugn9/7". + fn color_scheme(&mut self, color_scheme: String) -> &mut Self { + Attributes::color_scheme(self.get_attributes_mut(), color_scheme); + self + } + + /// Comments are inserted into output. Device-dependent + fn comment(&mut self, comment: String) -> &mut Self { + self.add_attribute("comment", AttributeText::attr(comment)); + self + } + + /// If false, the edge is not used in ranking the nodes. + fn constraint(&mut self, constraint: bool) -> &mut Self { + self.add_attribute("constraint", AttributeText::from(constraint)) + } + + /// If true, attach edge label to edge by a 2-segment polyline, underlining the label, + /// then going to the closest point of spline. + fn decorate(&mut self, decorate: bool) -> &mut Self { + self.add_attribute("decorate", AttributeText::from(decorate)) + } + + /// Edge type for drawing arrowheads. + /// Indicates which ends of the edge should be decorated with an arrowhead. + /// The actual style of the arrowhead can be specified using the arrowhead and arrowtail attributes. + fn dir(&mut self, dir: Direction) -> &mut Self { + self.add_attribute("dir", AttributeText::from(dir)) + } + + /// If the edge has a URL or edgeURL attribute, edgetarget determines which window + /// of the browser is used for the URL attached to the non-label part of the edge. + /// Setting edgetarget=_graphviz will open a new window if it doesn’t already exist, + /// or reuse it if it does. + fn edge_target(&mut self, edge_target: String) -> &mut Self { + self.add_attribute("edgetarget", AttributeText::escaped(edge_target)) + } + + /// Tooltip annotation attached to the non-label part of an edge. + /// Used only if the edge has a URL or edgeURL attribute. + fn edge_tooltip(&mut self, edge_tooltip: String) -> &mut Self { + self.add_attribute("edgetooltip", AttributeText::escaped(edge_tooltip)) + } + + /// The link for the non-label parts of an edge. + /// edgeURL overrides any URL defined for the edge. + /// Also, edgeURL is used near the head or tail node unless overridden by headURL or tailURL, respectively. + fn edge_url(&mut self, edge_url: String) -> &mut Self { + self.add_attribute("edgeurl", AttributeText::escaped(edge_url)) + } + + // TODO: color list + /// Color used to fill the background of a node or cluster assuming style=filled, or a filled arrowhead. + fn fill_color(&mut self, fill_color: Color<'a>) -> &mut Self { + Attributes::fill_color(self.get_attributes_mut(), fill_color); + self + } + + // TODO: color list + /// Color used for text. + fn font_color(&mut self, font_color: Color<'a>) -> &mut Self { + Attributes::font_color(self.get_attributes_mut(), font_color); + self + } + + /// Font used for text. + fn font_name(&mut self, font_name: String) -> &mut Self { + Attributes::font_name(self.get_attributes_mut(), font_name); + self + } + + /// Font size, in points, used for text. + /// default: 14.0, minimum: 1.0 + fn font_size(&mut self, font_size: f32) -> &mut Self { + Attributes::font_size(self.get_attributes_mut(), font_size); + self + } + + /// Position of an edge’s head label, in points. The position indicates the center of the label. + fn head_lp(&mut self, head_lp: Point) -> &mut Self { + self.add_attribute("head_lp", AttributeText::from(head_lp)) + } + + /// If true, the head of an edge is clipped to the boundary of the head node; + /// otherwise, the end of the edge goes to the center of the node, or the center + /// of a port, if applicable. + fn head_clip(&mut self, head_clip: bool) -> &mut Self { + self.add_attribute("headclip", AttributeText::from(head_clip)) + } + + /// Text label to be placed near head of edge. + fn head_label(&mut self, head_label: String) -> &mut Self { + self.add_attribute("headlabel", AttributeText::quoted(head_label)) + } + + /// Indicates where on the head node to attach the head of the edge. + /// In the default case, the edge is aimed towards the center of the node, + /// and then clipped at the node boundary. + fn head_port(&mut self, head_port: PortPosition) -> &mut Self { + self.add_attribute("headport", AttributeText::from(head_port)) + } + + /// If the edge has a headURL, headtarget determines which window of the browser is used for the URL. + /// Setting headURL=_graphviz will open a new window if the window doesn’t already exist, + /// or reuse the window if it does. + /// If undefined, the value of the target is used. + fn head_target(&mut self, head_target: String) -> &mut Self { + self.add_attribute("headtarget", AttributeText::escaped(head_target)) + } + + /// Tooltip annotation attached to the head of an edge. + /// Used only if the edge has a headURL attribute. + fn head_tooltip(&mut self, head_tooltip: String) -> &mut Self { + self.add_attribute("headtooltip", AttributeText::escaped(head_tooltip)) + } + + /// If defined, headURL is output as part of the head label of the edge. + /// Also, this value is used near the head node, overriding any URL value. + fn head_url(&mut self, head_url: String) -> &mut Self { + self.add_attribute("headURL", AttributeText::escaped(head_url)) + } + + /// An escString or an HTML label. + fn label(&mut self, label: String) -> &mut Self { + Attributes::label(self.get_attributes_mut(), label); + self + } + + // TODO: constrain + /// Determines, along with labeldistance, where the headlabel / taillabel are + /// placed with respect to the head / tail in polar coordinates. + /// The origin in the coordinate system is the point where the edge touches the node. + /// The ray of 0 degrees goes from the origin back along the edge, parallel to the edge at the origin. + /// The angle, in degrees, specifies the rotation from the 0 degree ray, + /// with positive angles moving counterclockwise and negative angles moving clockwise. + /// default: -25.0, minimum: -180.0 + fn label_angle(&mut self, label_angle: f32) -> &mut Self { + self.add_attribute("labelangle", AttributeText::from(label_angle)) + } + + /// Multiplicative scaling factor adjusting the distance that the headlabel / taillabel is from + /// the head / tail node. + /// default: 1.0, minimum: 0.0 + fn label_distance(&mut self, label_distance: f32) -> &mut Self { + self.add_attribute("labeldistance", AttributeText::from(label_distance)) + } + + /// If true, allows edge labels to be less constrained in position. + /// In particular, it may appear on top of other edges. + fn label_float(&mut self, label_float: bool) -> &mut Self { + self.add_attribute("labelfloat", AttributeText::from(label_float)) + } + + /// Color used for headlabel and taillabel. + fn label_font_color(&mut self, label_font_color: Color<'a>) -> &mut Self { + self.add_attribute("labelfontcolor", AttributeText::from(label_font_color)) + } + + /// Font used for headlabel and taillabel. + /// If not set, defaults to edge’s fontname. + fn label_font_name(&mut self, label_font_name: String) -> &mut Self { + self.add_attribute("labelfontname", AttributeText::attr(label_font_name)) + } + + // TODO: constrains + /// Font size, in points, used for headlabel and taillabel. + /// If not set, defaults to edge’s fontsize. + /// default: 14.0, minimum: 1.0 + fn label_font_size(&mut self, label_font_size: f32) -> &mut Self { + self.add_attribute("labelfontsize", AttributeText::from(label_font_size)) + } + + /// If the edge has a URL or labelURL attribute, this attribute determines + /// which window of the browser is used for the URL attached to the label. + fn label_target(&mut self, label_target: String) -> &mut Self { + self.add_attribute("labeltarget", AttributeText::escaped(label_target)) + } + + /// Tooltip annotation attached to label of an edge. + /// Used only if the edge has a URL or labelURL attribute. + fn label_tooltip(&mut self, label_tooltip: String) -> &mut Self { + self.add_attribute("labeltooltip", AttributeText::escaped(label_tooltip)) + } + + /// If defined, labelURL is the link used for the label of an edge. + /// labelURL overrides any URL defined for the edge. + fn label_url(&mut self, label_url: String) -> &mut Self { + self.add_attribute("labelurl", AttributeText::escaped(label_url)) + } + + fn layer(&mut self, layer: String) -> &mut Self { + Attributes::layer(self.get_attributes_mut(), layer); + self + } + + fn lhead(&mut self, lhead: String) -> &mut Self { + self.add_attribute("lhead", AttributeText::quoted(lhead)) + } + + /// Label position + /// The position indicates the center of the label. + fn label_position(&mut self, lp: Point) -> &mut Self { + Attributes::label_position(self.get_attributes_mut(), lp); + self + } + + /// Logical tail of an edge. + /// When compound=true, if ltail is defined and is the name of a cluster + /// containing the real tail, the edge is clipped to the boundary of the cluster. + fn ltail(&mut self, ltail: String) -> &mut Self { + self.add_attribute("ltail", AttributeText::quoted(ltail)) + } + + /// Minimum edge length (rank difference between head and tail). + fn min_len(&mut self, min_len: u32) -> &mut Self { + self.add_attribute("minlen", AttributeText::from(min_len)) + } + + fn no_justify(&mut self, no_justify: bool) -> &mut Self { + self.add_attribute("nojustify", AttributeText::from(no_justify)) + } + + fn pen_width(&mut self, pen_width: f32) -> &mut Self { + Attributes::pen_width(self.get_attributes_mut(), pen_width); + self + } + + /// Position of node, or spline control points. + /// the position indicates the center of the node. On output, the coordinates are in points. + fn pos(&mut self, pos: Point) -> &mut Self { + Attributes::pos(self.get_attributes_mut(), pos); + self + } + + /// Edges with the same head and the same samehead value are aimed at the same point on the head. + fn same_head(&mut self, same_head: String) -> &mut Self { + self.add_attribute("samehead", AttributeText::quoted(same_head)) + } + + /// Edges with the same tail and the same sametail value are aimed at the same point on the tail. + fn same_tail(&mut self, same_tail: String) -> &mut Self { + self.add_attribute("sametail", AttributeText::quoted(same_tail)) + } + + // TODO: constrain + /// Print guide boxes in PostScript at the beginning of routesplines if showboxes=1, or at the + /// end if showboxes=2. + /// (Debugging, TB mode only!) + /// default: 0, minimum: 0 + fn show_boxes(&mut self, show_boxes: u32) -> &mut Self { + Attributes::show_boxes(self.get_attributes_mut(), show_boxes); + self + } + + /// Set style information for components of the graph. + fn style(&mut self, style: EdgeStyle) -> &mut Self { + Attributes::style(self.get_attributes_mut(), Styles::Edge(style)); + self + } + + /// Position of an edge’s tail label, in points. + /// The position indicates the center of the label. + fn tail_lp(&mut self, tail_lp: Point) -> &mut Self { + self.add_attribute("tail_lp", AttributeText::from(tail_lp)) + } + + /// If true, the tail of an edge is clipped to the boundary of the tail node; otherwise, + /// the end of the edge goes to the center of the node, or the center of a port, if applicable. + fn tail_clip(&mut self, tail_clip: bool) -> &mut Self { + self.add_attribute("tailclip", AttributeText::from(tail_clip)) + } + + /// Text label to be placed near tail of edge. + fn tail_label(&mut self, tail_label: String) -> &mut Self { + self.add_attribute("taillabel", AttributeText::quoted(tail_label)) + } + + /// Indicates where on the tail node to attach the tail of the edge. + fn tail_port(&mut self, tail_port: PortPosition) -> &mut Self { + self.add_attribute("tailport", AttributeText::from(tail_port)) + } + + /// If the edge has a tailURL, tailtarget determines which window of the browser is used for the URL. + fn tail_target(&mut self, tail_target: String) -> &mut Self { + self.add_attribute("tailtarget", AttributeText::escaped(tail_target)) + } + + /// Tooltip annotation attached to the tail of an edge. + fn tail_tooltip(&mut self, tail_tooltip: String) -> &mut Self { + self.add_attribute("tailtooltip", AttributeText::escaped(tail_tooltip)) + } + + /// If defined, tailURL is output as part of the tail label of the edge. + /// Also, this value is used near the tail node, overriding any URL value. + fn tail_url(&mut self, tail_url: String) -> &mut Self { + self.add_attribute("tailURL", AttributeText::escaped(tail_url)) + } + + /// If the object has a URL, this attribute determines which window of the browser is used for the URL. + fn target(&mut self, target: String) -> &mut Self { + self.add_attribute("target", AttributeText::escaped(target)) + } + + /// Tooltip annotation attached to the node or edge. + /// If unset, Graphviz will use the object’s label if defined. + /// Note that if the label is a record specification or an HTML-like label, + /// the resulting tooltip may be unhelpful. + /// In this case, if tooltips will be generated, the user should set a tooltip attribute explicitly. + fn tooltip(&mut self, tooltip: String) -> &mut Self { + Attributes::tooltip(self.get_attributes_mut(), tooltip); + self + } + + /// Hyperlinks incorporated into device-dependent output. + fn url(&mut self, url: String) -> &mut Self { + Attributes::url(self.get_attributes_mut(), url); + self + } + + // TODO: contrain + /// Weight of edge. + /// The heavier the weight, the shorter, straighter and more vertical the edge is. + /// default: 1, minimum: 0 + fn weight(&mut self, weight: u32) -> &mut Self { + self.add_attribute("weight", AttributeText::attr(weight.to_string())) + } + + /// External label for a node or edge. + /// The label will be placed outside of the node but near it. + /// These labels are added after all nodes and edges have been placed. + /// The labels will be placed so that they do not overlap any node or label. + /// This means it may not be possible to place all of them. + /// To force placing all of them, set forcelabels=true. + fn xlabel(&mut self, xlabel: String) -> &mut Self { + Attributes::xlabel(self.get_attributes_mut(), xlabel); + self + } + + /// Position of an exterior label, in points. + /// The position indicates the center of the label. + fn xlp(&mut self, xlp: Point) -> &mut Self { + Attributes::xlp(self.get_attributes_mut(), xlp); + self + } + + fn add_attribute<S: Into<String>>( + &mut self, + key: S, + value: AttributeText<'a>, + ) -> &mut Self; + + fn get_attributes_mut(&mut self) -> &mut IndexMap<String, AttributeText<'a>>; + + // fn add_attribute<S: Into<String>>( + // &self, + // key: S, + // value: AttributeText<'a> + // ) { + // self.get_attributes().insert(key.into(), value); + // } + + // fn get_attributes(&self) -> IndexMap<String, AttributeText<'a>>; + + // fn get_attributes_mut(&self) -> &mut IndexMap<String, AttributeText<'a>>; + + // fn to_dot_string(&self) -> String; +} + +pub(crate) fn fmt_attributes(attributes: &IndexMap<String, AttributeText>) -> String { + let mut dot_string = String::from(""); + if !attributes.is_empty() { + dot_string.push_str(" ["); + let mut iter = attributes.iter(); + let first = iter.next().unwrap(); + dot_string.push_str(format!("{}={}", first.0, first.1.dot_string()).as_str()); + for (key, value) in iter { + dot_string.push_str(", "); + dot_string.push_str(format!("{}={}", key, value.dot_string()).as_str()); + } + dot_string.push_str("]"); + } + + dot_string +} + #[cfg(test)] mod test { use crate::attributes::{ |