messing around with glyphbrush

src/render.rs

@@ -0,0 +1,42 @@
+use gfx_device_gl::Factory;
+use gfx_device_gl::Resources;
+use crate::nes::cpu::CPU;
+use gfx_glyph::{Section,GlyphBrush};
+
+pub trait Draw {
+    fn draw(&mut self, glyphs: &mut GlyphBrush<Resources,Factory>);
+}
+
+pub struct CPURenderer<'a> {
+    registers_text: String,
+    registers_section: Section<'a>,
+}
+
+impl<'a> CPURenderer<'a> {
+    pub fn new(cpu: &CPU) -> Self {
+        let registers_text = String::from("A: 0x00 (000)");
+        let registers_section = Section {
+            text: "xxx",
+            screen_position: (100.0, 100.0),
+            color: [1.0; 4], 
+            ..Section::default()
+        };
+        CPURenderer {
+            registers_text: registers_text,
+            registers_section: registers_section, 
+        }
+    }
+}
+
+impl<'a> CPURenderer<'a> {
+    pub fn update(&mut self, cpu: &CPU) {
+        self.registers_text.replace_range(3..7, "txtx");
+        // self.registers_section.text = &self.registers_text;
+    }
+}
+
+impl<'a> Draw for CPURenderer<'a> {
+    fn draw(&mut self, glyphs: &mut GlyphBrush<Resources,Factory>) {
+        glyphs.queue(self.registers_section);
+    }
+}