From ed80ccaa553a793657a0a8dfe95f3c3e9ba09a27 Mon Sep 17 00:00:00 2001
From: Chris Cochrun <chris@cochrun.xyz>
Date: Thu, 27 Mar 2025 15:20:32 -0500
Subject: [PATCH] the beginnings of the text_svg

---
 Cargo.lock            |   7 ++
 Cargo.toml            |   1 +
 src/ui/song_editor.rs |  14 ++--
 src/ui/text_svg.rs    | 179 +++++++++++++++++++++++++++++++++++++-----
 4 files changed, 177 insertions(+), 24 deletions(-)

diff --git a/Cargo.lock b/Cargo.lock
index 0e13697..ee3b7d0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -1156,6 +1156,12 @@ version = "1.0.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5b63caa9aa9397e2d9480a9b13673856c78d8ac123288526c37d7839f2a86990"
 
+[[package]]
+name = "colors-transform"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9226dbc05df4fb986f48d730b001532580883c4c06c5d1c213f4b34c1c157178"
+
 [[package]]
 name = "com"
 version = "0.6.0"
@@ -4165,6 +4171,7 @@ name = "lumina"
 version = "0.1.0"
 dependencies = [
  "clap",
+ "colors-transform",
  "cosmic-time",
  "crisp",
  "dirs",
diff --git a/Cargo.toml b/Cargo.toml
index 5d12c01..deea9bc 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -28,6 +28,7 @@ gstreamer = "0.23.3"
 gstreamer-app = "0.23.3"
 cosmic-time = "0.2.0"
 url = "2"
+colors-transform = "0.2.11"
 # rfd = { version = "0.12.1", features = ["xdg-portal"], default-features = false }
 
 [dependencies.iced_video_player]
diff --git a/src/ui/song_editor.rs b/src/ui/song_editor.rs
index ddb0677..25bc56a 100644
--- a/src/ui/song_editor.rs
+++ b/src/ui/song_editor.rs
@@ -305,15 +305,19 @@ impl SongEditor {
                     .into_iter()
                     .enumerate()
                     .map(|(index, slide)| {
-                        let svg = Handle::from_memory(r#"<svg viewBox="0 0 240 100" xmlns="http://www.w3.org/2000/svg">
+                        let svg = Handle::from_memory(r#"<svg viewBox="0 0 1280 720" xmlns="http://www.w3.org/2000/svg">
 <defs>
-     <filter id="shadow2">
-      <feDropShadow dx="0" dy="0" stdDeviation="0" flood-color="cyan" />
+     <filter id="shadow">
+      <feDropShadow dx="10" dy="10" stdDeviation="5" flood-color='#000' />
     </filter>
 </defs>
-<text x="0" y="50" font-weight="bold" font-family="Quicksand" font-size="40" fill="white" stroke="black" stroke-width="2" style="filter:url(#shadow2);">
+<text x="0" y="300" font-weight="bold" font-family="Quicksand" font-size="80" fill="white" stroke="black" stroke-width="2" style="filter:url(#shadow);">
     Hello World
-</text></svg>"#.as_bytes());
+</text>
+<text x="0" y="350" font-weight="bold" font-family="Quicksand" font-size="40" fill="white" stroke="black" stroke-width="2" style="filter:url(#shadow);">
+    Hello World
+</text>
+</svg>"#.as_bytes());
                         stack!(
                             container(
                                 slide_view(
diff --git a/src/ui/text_svg.rs b/src/ui/text_svg.rs
index 8634776..038d2e0 100644
--- a/src/ui/text_svg.rs
+++ b/src/ui/text_svg.rs
@@ -1,38 +1,125 @@
-use cosmic::iced::Font as IcedFont;
+use std::fmt::Display;
 
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
+use colors_transform::Rgb;
+use cosmic::{
+    iced::font::{Style, Weight},
+    prelude::*,
+    widget::{svg::Handle, Svg},
+};
+use tracing::error;
+
+#[derive(Clone, Debug, Default, PartialEq)]
 pub struct TextSvg {
     text: String,
     font: Font,
-    shadow: Shadow,
-    stroke: Stroke,
+    shadow: Option<Shadow>,
+    stroke: Option<Stroke>,
     fill: Color,
 }
 
 #[derive(Clone, Debug, Default, PartialEq, Eq)]
-pub struct Font(IcedFont);
-
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
-pub struct Color {
-    red: u8,
-    green: u8,
-    blue: u8,
+pub struct Font {
+    name: String,
+    weight: Weight,
+    style: Style,
+    size: u8,
 }
 
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
+impl From<&str> for Font {
+    fn from(value: &str) -> Self {
+        Self {
+            name: value.to_owned(),
+            ..Default::default()
+        }
+    }
+}
+
+impl Font {
+    fn get_name(&self) -> String {
+        self.name.clone()
+    }
+
+    fn get_weight(&self) -> Weight {
+        self.weight.clone()
+    }
+
+    fn get_style(&self) -> Style {
+        self.style.clone()
+    }
+
+    fn weight(mut self, weight: impl Into<Weight>) -> Self {
+        self.weight = weight.into();
+        self
+    }
+
+    fn style(mut self, style: impl Into<Style>) -> Self {
+        self.style = style.into();
+        self
+    }
+
+    fn name(mut self, name: impl Into<String>) -> Self {
+        self.name = name.into();
+        self
+    }
+}
+
+#[derive(Clone, Debug, PartialEq)]
+pub struct Color(Rgb);
+
+impl Color {
+    pub fn from_hex_str(color: impl AsRef<str>) -> Color {
+        match Rgb::from_hex_str(color.as_ref()) {
+            Ok(rgb) => Color(rgb),
+            Err(e) => {
+                error!("error in making color from hex_str: {:?}", e);
+                Color::default()
+            }
+        }
+    }
+}
+
+impl From<&str> for Color {
+    fn from(value: &str) -> Self {
+        Self::from_hex_str(value)
+    }
+}
+
+impl Default for Color {
+    fn default() -> Self {
+        Self(
+            Rgb::from_hex_str("#000")
+                .expect("This is not a hex color"),
+        )
+    }
+}
+
+impl Display for Color {
+    fn fmt(
+        &self,
+        f: &mut std::fmt::Formatter<'_>,
+    ) -> std::fmt::Result {
+        write!(f, "{}", self.0.to_css_hex_string())
+    }
+}
+
+#[derive(Clone, Debug, Default, PartialEq)]
 pub struct Shadow {
-    offset_x: i16,
-    offset_y: i16,
-    spread: u16,
-    color: Color,
+    pub offset_x: i16,
+    pub offset_y: i16,
+    pub spread: u16,
+    pub color: Color,
 }
 
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
+#[derive(Clone, Debug, Default, PartialEq)]
 pub struct Stroke {
     size: u16,
     color: Color,
 }
 
+pub enum Message {
+    None,
+}
+
 impl TextSvg {
     pub fn new() -> Self {
         Self {
@@ -46,12 +133,12 @@ impl TextSvg {
     }
 
     pub fn shadow(mut self, shadow: impl Into<Shadow>) -> Self {
-        self.shadow = shadow.into();
+        self.shadow = Some(shadow.into());
         self
     }
 
     pub fn stroke(mut self, stroke: impl Into<Stroke>) -> Self {
-        self.stroke = stroke.into();
+        self.stroke = Some(stroke.into());
         self
     }
 
@@ -59,4 +146,58 @@ impl TextSvg {
         self.font = font.into();
         self
     }
+
+    pub fn view(&self) -> Element<Message> {
+        let shadow = if let Some(shadow) = &self.shadow {
+            format!("<filter id=\"shadow\"><feDropShadow dx=\"{}\" dy=\"{}\" stdDeviation=\"{}\" flood-color=\"{}\"/></filter>",
+                shadow.offset_x,
+                shadow.offset_y,
+                shadow.spread,
+                shadow.color)
+        } else {
+            "".into()
+        };
+        let stroke = if let Some(stroke) = &self.stroke {
+            format!(
+                "stroke=\"{}\" stroke-width=\"{}\"",
+                stroke.color, stroke.size
+            )
+        } else {
+            "".into()
+        };
+        // text y coords are based on bottom left corner so we need to take height into consideration
+        let base = format!("<svg viewBox=\"0 0 240 100\" xmlns=\"http://www.w3.org/2000/svg\"><defs>{}</defs>
+<text x=\"0\" y=\"50\" font-weight=\"bold\" font-family=\"{}\" font-size=\"{}\" fill=\"{}\" {} style=\"filter:url(#shadow);\">
+    {}
+</text></svg>", shadow, self.font.name, self.font.size, self.fill, stroke, self.text);
+        Svg::new(Handle::from_memory(
+            Box::leak(base.into_boxed_str()).as_bytes(),
+        ))
+        .into()
+    }
+}
+
+pub fn shadow(
+    offset_x: i16,
+    offset_y: i16,
+    spread: u16,
+    color: impl Into<Color>,
+) -> Shadow {
+    Shadow {
+        offset_x,
+        offset_y,
+        spread,
+        color: color.into(),
+    }
+}
+
+pub fn stroke(size: u16, color: impl Into<Color>) -> Stroke {
+    Stroke {
+        size,
+        color: color.into(),
+    }
+}
+
+pub fn color(color: impl AsRef<str>) -> Color {
+    Color::from_hex_str(color)
 }