wip

odoo · Sep 19, 2024 · 3033d05 · 3033d05
1 parent 6985167
commit 3033d05
Showing 1 changed file with 40 additions and 4 deletions.
diff --git a/src/vaev-layout/flex.cpp b/src/vaev-layout/flex.cpp
@@ -6,6 +6,34 @@ namespace Vaev::Layout {
 
 struct FlexItem {
     Frag &frag;
+    Flex &flexContainer;
+
+    FlexItem(Frag &f, Flex &flexContainer) : frag(f), flexContainer(flexContainer) {
+    }
+
+    Number getCrossSize() {
+        if (flexContainer.direction == FlexDirection::ROW or flexContainer.direction == FlexDirection::ROW_REVERSE) {
+            // return frag ... height
+        } else {
+            // return frag ... width
+        }
+        return 0;
+    }
+
+    Number getFlexBaseSize() {
+        if (frag.style->flex->basis.type == FlexBasis::WIDTH) {
+            if (frag.style->flex->basis.width == Width::VALUE)
+                return frag.style->flex->basis.width.value;
+        } else {
+            if (getCrossSize() and
+                // frag.style. .... aspect ratio
+                true) {
+                //  flex base size is calculated from its inner cross size and the flex item’s intrinsic aspect ratio.
+            } else {
+                // ... other conditions which are complex
+            }
+        }
+    }
 };
 
 struct FlexLine {
@@ -16,12 +44,19 @@ Output flexLayout(Tree &t, Frag &f, Input input) {
     // https://www.w3.org/TR/css-flexbox-1/#layout-algorithm
 
     // 1. Generate anonymous flex items
-    Vec<FlexItem> flexItems;
-
     // TODO: Implement this step
+    Vec<FlexItem> flexItems;
+    for (auto &c : f.children()) {
+        // How does this behave for anon children? Dont know how children() returns them yet
+        flexItems.pushBack(FlexItem(c, f.style->flex.cow()));
+    }
 
     // 2. Determine the available main and cross space for the flex items.
-    // TODO: Implement this step
+    // CURRENT ASSUMPTIONS:
+    // - flow-direction: row
+    // - dimensions of containers are definite size
+    auto availableMainSpace = input.availableSpace.x;
+    auto availableCrossSpace = input.availableSpace.y;
 
     // 3. Determine the flex base size and hypothetical main size of each item
     // TODO: Implement this step
@@ -30,7 +65,8 @@ Output flexLayout(Tree &t, Frag &f, Input input) {
     // TODO: Implement this step
 
     // 5. Collect flex items into flex lines
-    Vec<FlexLine> flexLines;
+    Vec<FlexLine>
+        flexLines;
 
     // TODO: Implement this step