Add a function to convert ascii to svg with an override size

2 files changed, 54 insertions, 9 deletions

diff --git a/svgbob/src/buffer/cell_buffer.rs b/svgbob/src/buffer/cell_buffer.rs
index d2e4f70..1ef4e1f 100644
--- a/svgbob/src/buffer/cell_buffer.rs
+++ b/svgbob/src/buffer/cell_buffer.rs
@@ -157,6 +157,45 @@ impl CellBuffer {
         settings: &Settings,
     ) -> (Node<MSG>, f32, f32) {
         let (w, h) = self.get_size(&settings);
+
+        let (group_nodes, fragments) = self.group_nodes_and_fragments(settings);
+
+        let svg_node = Self::fragments_to_node(
+            fragments,
+            self.legend_css(),
+            settings,
+            w,
+            h,
+        )
+        .add_children(group_nodes);
+        (svg_node, w, h)
+    }
+
+    /// get all nodes and use the size supplied
+    pub fn get_node_override_size<MSG>(
+        &self,
+        settings: &Settings,
+        w: f32,
+        h: f32,
+    ) -> Node<MSG> {
+        let (group_nodes, fragments) = self.group_nodes_and_fragments(settings);
+
+        let svg_node = Self::fragments_to_node(
+            fragments,
+            self.legend_css(),
+            settings,
+            w,
+            h,
+        )
+        .add_children(group_nodes);
+
+        svg_node
+    }
+
+    fn group_nodes_and_fragments<MSG>(
+        &self,
+        settings: &Settings,
+    ) -> (Vec<Node<MSG>>, Vec<Fragment>) {
         // vec_fragments are the fragment result of successful endorsement
         //
         // vec_groups are not endorsed, but are still touching, these will be grouped together in
@@ -205,15 +244,7 @@ impl CellBuffer {
         fragments.extend(single_member_fragments);
         fragments.extend(self.escaped_text_nodes());
 
-        let svg_node = Self::fragments_to_node(
-            fragments,
-            self.legend_css(),
-            settings,
-            w,
-            h,
-        )
-        .add_children(group_nodes);
-        (svg_node, w, h)
+        (group_nodes, fragments)
     }
 
     fn escaped_text_nodes(&self) -> Vec<Fragment> {
diff --git a/svgbob/src/lib.rs b/svgbob/src/lib.rs
index 3fe7c75..bd4fe48 100644
--- a/svgbob/src/lib.rs
+++ b/svgbob/src/lib.rs
@@ -32,3 +32,17 @@ pub fn to_svg_with_settings(ascii: &str, settings: &Settings) -> String {
     node.render(&mut buffer).expect("must render");
     buffer
 }
+
+/// convert ascii art to svg using the size supplied
+pub fn to_svg_with_override_size(
+    ascii: &str,
+    settings: &Settings,
+    w: f32,
+    h: f32,
+) -> String {
+    let cb = CellBuffer::from(ascii);
+    let node: Node<()> = cb.get_node_override_size(settings, w, h);
+    let mut buffer = String::new();
+    node.render(&mut buffer).expect("must render");
+    buffer
+}