From e1b41bbc799ef1fe3418db2160f7e6d0d0b00fe8 Mon Sep 17 00:00:00 2001
From: griffi-gh <prasol258@gmail.com>
Date: Sat, 2 Dec 2023 17:16:45 +0100
Subject: [PATCH] text kinda works!

---
 kubi-ui-examples/examples/text.rs |  2 +-
 kubi-ui/src/draw.rs               | 59 +++++++++++++++++--------------
 kubi-ui/src/text/ftm.rs           |  2 +-
 3 files changed, 35 insertions(+), 28 deletions(-)

diff --git a/kubi-ui-examples/examples/text.rs b/kubi-ui-examples/examples/text.rs
index 84f836f..c2cacef 100644
--- a/kubi-ui-examples/examples/text.rs
+++ b/kubi-ui-examples/examples/text.rs
@@ -50,7 +50,7 @@ fn main() {
           size: (UiSize::Percentage(1.), UiSize::Percentage(1.)),
           elements: vec![
             Box::new(Text {
-              text: "Heloworld!Loremipsumsimdoloramet".into(),
+              text: "Hello_world".into(),
               ..Default::default()
             }),
           ],
diff --git a/kubi-ui/src/draw.rs b/kubi-ui/src/draw.rs
index 9efe93f..19d95e4 100644
--- a/kubi-ui/src/draw.rs
+++ b/kubi-ui/src/draw.rs
@@ -119,10 +119,9 @@ impl UiDrawPlan {
         }
       }
 
-      let vidx = swapper.current().vertices.len() as u32;
-
       match command {
         UiDrawCommand::Rectangle { position, size, color } => {
+          let vidx = swapper.current().vertices.len() as u32;
           swapper.current_mut().indices.extend([vidx, vidx + 1, vidx + 2, vidx, vidx + 2, vidx + 3]);
           swapper.current_mut().vertices.extend([
             UiVertex {
@@ -148,32 +147,40 @@ impl UiDrawPlan {
           ]);
         },
         UiDrawCommand::Text { position, size, color, text } => {
+          let mut rpos_x = 0.;
           for char in text.chars() {
-            tr.glyph(FontHandle(0), char, *size);
+            let vidx = swapper.current().vertices.len() as u32;
+            let glyph = tr.glyph(FontHandle(0), char, *size);
+            rpos_x += 32.;//glyph.metrics.advance_width;
+            swapper.current_mut().indices.extend([vidx, vidx + 1, vidx + 2, vidx, vidx + 2, vidx + 3]);
+            let p0x = glyph.position.x as f32 / 1024.;
+            let p1x = (glyph.position.x + glyph.size.x as i32) as f32 / 1024.;
+            let p0y = glyph.position.y as f32 / 1024.;
+            let p1y = (glyph.position.y + glyph.size.y as i32) as f32 / 1024.;
+            swapper.current_mut().vertices.extend([
+              UiVertex {
+                position: *position + vec2(rpos_x, 0.0),
+                color: *color,
+                uv: vec2(p0x, p0y),
+              },
+              UiVertex {
+                position: *position + vec2(rpos_x + 32., 0.0),
+                color: *color,
+                uv: vec2(p1x, p0y),
+              },
+              UiVertex {
+                position: *position + vec2(rpos_x + 32., 32.),
+                color: *color,
+                uv: vec2(p1x, p1y),
+              },
+              UiVertex {
+                position: *position + vec2(rpos_x + 0.0, 32.),
+                color: *color,
+                uv: vec2(p0x, p1y),
+              },
+            ]);
           }
-          swapper.current_mut().indices.extend([vidx, vidx + 1, vidx + 2, vidx, vidx + 2, vidx + 3]);
-          swapper.current_mut().vertices.extend([
-            UiVertex {
-              position: *position,
-              color: *color,
-              uv: vec2(0.0, 0.0),
-            },
-            UiVertex {
-              position: *position + vec2(32., 0.0),
-              color: *color,
-              uv: vec2(1.0, 0.0),
-            },
-            UiVertex {
-              position: *position + vec2(32., 32.),
-              color: *color,
-              uv: vec2(1.0, 1.0),
-            },
-            UiVertex {
-              position: *position + vec2(0.0, 32.),
-              color: *color,
-              uv: vec2(0.0, 1.0),
-            },
-          ]);
+
         }
       }
       prev_command = Some(command);
diff --git a/kubi-ui/src/text/ftm.rs b/kubi-ui/src/text/ftm.rs
index 8e9b684..07afc39 100644
--- a/kubi-ui/src/text/ftm.rs
+++ b/kubi-ui/src/text/ftm.rs
@@ -135,6 +135,6 @@ impl FontTextureManager {
 
 impl Default for FontTextureManager {
   fn default() -> Self {
-    Self::new(uvec2(2048, 2048))
+    Self::new(uvec2(1024, 1024))
   }
 }