making some text_svg changes

src/core/slide.rs

@@ -12,7 +12,15 @@ use tracing::error;
 use super::songs::Song;
 
 #[derive(
-    Clone, Copy, Debug, Default, PartialEq, Eq, Serialize, Deserialize,
+    Clone,
+    Copy,
+    Debug,
+    Default,
+    PartialEq,
+    Eq,
+    Serialize,
+    Deserialize,
+    Hash,
 )]
 pub enum TextAlignment {
     TopLeft,

src/ui/presenter.rs

@@ -29,6 +29,7 @@ use url::Url;
 
 use crate::{
     core::{service_items::ServiceItemModel, slide::Slide},
+    ui::text_svg::{self, Font as SvgFont},
     BackgroundKind,
 };
 
@@ -542,33 +543,39 @@ pub(crate) fn slide_view(
     responsive(move |size| {
         let width = size.height * 16.0 / 9.0;
         let font_size = scale_font(slide.font_size() as f32, width);
-        // let font = SvgFont::from(font).size(font_size.floor() as u8);
+        let font = SvgFont::from(font).size(font_size.floor() as u8);
         let slide_text = slide.text();
-        // let text = text_svg::TextSvg::new()
-        //     .text(&slide_text)
-        //     .fill("#fff")
-        //     .shadow(shadow(2, 2, 5, "#000000"))
-        //     .stroke(stroke(1, "#000"))
-        //     .font(font)
-        //     .view()
-        //     .map(|m| Message::None);
+
+        // SVG based
+        let text = text_svg::TextSvg::new()
+            .text(&slide_text)
+            .fill("#fff")
+            .shadow(text_svg::shadow(2, 2, 5, "#000000"))
+            .stroke(text_svg::stroke(1, "#000"))
+            .font(font)
+            .view()
+            .map(|m| Message::None);
+
         // let text = text!("{}", &slide_text);
-        let lines = slide_text.lines();
-        let text: Vec<Element<Message>> = lines
-            .map(|t| {
-                rich_text([span(format!("{}\n", t))
-                    .background(
-                        Background::Color(Color::BLACK)
-                            .scale_alpha(0.4),
-                    )
-                    .padding(1)])
-                .size(font_size)
-                .font(font)
-                .center()
-                .into()
-            })
-            .collect();
-        let text = Column::with_children(text).spacing(6);
+        // text widget based
+        // let lines = slide_text.lines();
+        // let text: Vec<Element<Message>> = lines
+        //     .map(|t| {
+        //         rich_text([span(format!("{}\n", t))
+        //             .background(
+        //                 Background::Color(Color::BLACK)
+        //                     .scale_alpha(0.4),
+        //             )
+        //             .padding(1)])
+        //         .size(font_size)
+        //         .font(font)
+        //         .center()
+        //         .into()
+        //     })
+        //     .collect();
+        // let text = Column::with_children(text).spacing(6);
+
+        //Next
         let text_container = Container::new(text)
             .center(Length::Fill)
             .align_x(Horizontal::Left);

src/ui/text_svg.rs

@@ -1,4 +1,7 @@
-use std::fmt::Display;
+use std::{
+    fmt::Display,
+    hash::{Hash, Hasher},
+};
 
 use colors_transform::Rgb;
 use cosmic::{
@@ -7,7 +10,7 @@ use cosmic::{
         Length,
     },
     prelude::*,
-    widget::{container, responsive, svg::Handle, Svg},
+    widget::{container, lazy, responsive, svg::Handle, Svg},
 };
 use tracing::error;
 
@@ -23,7 +26,18 @@ pub struct TextSvg {
     alignment: TextAlignment,
 }
 
-#[derive(Clone, Debug, Default, PartialEq, Eq)]
+impl Hash for TextSvg {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.text.hash(state);
+        self.font.hash(state);
+        self.shadow.hash(state);
+        self.stroke.hash(state);
+        self.fill.hash(state);
+        self.alignment.hash(state);
+    }
+}
+
+#[derive(Clone, Debug, Default, PartialEq, Eq, Hash)]
 pub struct Font {
     name: String,
     weight: Weight,
@@ -92,6 +106,12 @@ impl Font {
 #[derive(Clone, Debug, PartialEq)]
 pub struct Color(Rgb);
 
+impl Hash for Color {
+    fn hash<H: Hasher>(&self, state: &mut H) {
+        self.0.to_css_hex_string().hash(state);
+    }
+}
+
 impl Color {
     pub fn from_hex_str(color: impl AsRef<str>) -> Color {
         match Rgb::from_hex_str(color.as_ref()) {
@@ -128,7 +148,7 @@ impl Display for Color {
     }
 }
 
-#[derive(Clone, Debug, Default, PartialEq)]
+#[derive(Clone, Debug, Default, PartialEq, Hash)]
 pub struct Shadow {
     pub offset_x: i16,
     pub offset_y: i16,
@@ -136,7 +156,7 @@ pub struct Shadow {
     pub color: Color,
 }
 
-#[derive(Clone, Debug, Default, PartialEq)]
+#[derive(Clone, Debug, Default, PartialEq, Hash)]
 pub struct Stroke {
     size: u16,
     color: Color,
@@ -226,12 +246,11 @@ impl TextSvg {
                                         self.fill, stroke, text);
 
                 // debug!(final_svg);
-
-                Svg::new(Handle::from_memory(
-                    Box::leak(final_svg.into_boxed_str()).as_bytes(),
+                lazy(self.clone(), move |_s| Svg::new(Handle::from_memory(
+                    Box::leak(<std::string::String as Clone>::clone(&final_svg).into_boxed_str()).as_bytes(),
                 ))
                     .width(Length::Fill)
-                    .height(Length::Fill)
+                    .height(Length::Fill))
                     .into()
             })).width(Length::Fill).height(Length::Fill).into()
     }