Seperated row and column flex

src/elements/flex/column.rs

@@ -0,0 +1,98 @@
+use std::sync::Arc;
+
+use crate::{
+    prelude::ElementRenderer,
+    style::RawTransform,
+    widget::{Element, Widget},
+    NoRenderRoot,
+};
+
+pub struct ColumnRenderer<'a>(&'a mut RawTransform, u16, &'a mut u16);
+
+pub struct FlexCol {
+    pub gap: u16,
+    children: Vec<Arc<Widget>>,
+    render: (u16, u16),
+}
+
+impl FlexCol {
+    pub fn new() -> Self {
+        Self {
+            children: Vec::new(),
+            gap: 0,
+            render: (0, 0),
+        }
+    }
+}
+
+impl Element for FlexCol {
+    fn render(
+        &mut self,
+        scope: &mut crate::prelude::RenderScope,
+        _: &crate::render_scope::RenderContext,
+    ) {
+        scope.use_area(self.render.0, self.render.1);
+    }
+
+    fn after_render(
+        &mut self,
+        parent_scope: &mut crate::render_scope::RenderScope,
+        render_context: &crate::render_scope::RenderContext,
+    ) {
+        let mut transform = {
+            let (width, height) = parent_scope.get_size_or_parent();
+            let mut t = parent_scope.get_transform().clone();
+            t.width = width;
+            t.height = height;
+            t.transform_parent(parent_scope.get_parent_transform());
+            t
+        };
+
+        let mut scope = crate::render_scope::RenderScope::new();
+        scope.set_parent_transform(transform.clone());
+
+        transform.width = 0;
+        let mut v = 0;
+        let mut renderer = ColumnRenderer(&mut transform, self.gap, &mut v);
+        for widget in &self.children {
+            scope.render_widget(&mut renderer, render_context.get_context(), widget);
+        }
+
+        self.render = (transform.width, transform.height);
+    }
+
+    fn draw_child(&mut self, element: &Arc<Widget>) {
+        self.children.push(element.clone());
+        element.inject(|w| w.component(NoRenderRoot));
+    }
+
+    fn is_ghost(&mut self) -> bool {
+        true
+    }
+
+    fn as_any(&self) -> &dyn std::any::Any {
+        self
+    }
+
+    fn as_any_mut(&mut self) -> &mut dyn std::any::Any {
+        self
+    }
+}
+
+impl ElementRenderer for ColumnRenderer<'_> {
+    fn before_draw(&mut self, scope: &mut crate::prelude::RenderScope, _widget: &Arc<Widget>) {
+        let t = scope.get_transform_mut();
+        // self.0.width = self.0.width.max(*self.2 + t.width + (t.px * 2));
+        self.0.height = self.0.height.max(t.height + (t.py * 2));
+
+        t.x += self.0.x + *self.2;
+        t.y += self.0.y;
+        *self.2 += t.width + self.1 + (t.px * 2);
+
+        t.px += self.0.px;
+        t.py += self.0.py;
+
+        self.0.width += t.width + (t.px * 2) + self.1;
+        t.offset_y = self.0.offset_y;
+    }
+}