From d6e916319a050070c53eb283470a3fd4833392a0 Mon Sep 17 00:00:00 2001
From: Fox Caminiti <fox@foxcam.net>
Date: Fri, 27 Jan 2023 18:36:05 -0500
Subject: corner scaling

---
 src/layer.cpp | 55 ++++++++++++++++++++++++++++---------------------------
 1 file changed, 28 insertions(+), 27 deletions(-)

(limited to 'src/layer.cpp')

diff --git a/src/layer.cpp b/src/layer.cpp
index 591487e..3686d75 100644
--- a/src/layer.cpp
+++ b/src/layer.cpp
@@ -370,6 +370,29 @@ Layer_TraverseForPoint(project_data *File, project_state *State, memory *Memory,
     return PointUV * V2(InnerWidth, InnerHeight);
 }
 
+// TODO(fox): Precomps?
+static bool32
+Layer_TestForPoint(memory *Memory, project_state *State, ui *UI, sorted_comp_array *SortedCompArray, sorted_layer_array *SortedLayerArray, uint16 PrincipalIndex, v2 CompUV)
+{
+    block_composition *Comp = (block_composition *)Memory_Block_AddressAtIndex(Memory, F_Precomps, PrincipalIndex);
+    sorted_comp_array SortedCompStart = SortedCompArray[PrincipalIndex];
+    sorted_layer_array *SortedLayerStart = Sorted_GetLayerStart(SortedLayerArray, SortedCompArray, PrincipalIndex);
+    for (int i = SortedCompStart.LayerCount - 1; i >= 0; i--) {
+        sorted_layer_array SortEntry = SortedLayerStart[i];
+        uint32 Index_Physical = SortEntry.Block_Layer_Index;
+        block_layer *Layer = (block_layer *)Memory_Block_AddressAtIndex(Memory, F_Layers, Index_Physical);
+        int Width, Height;
+        Layer_GetDimensions(Memory, Layer, &Width, &Height);
+        layer_transforms T = Layer_GetTransforms(Layer);
+        v2 UV = T_CompUVToLayerUV(T, Comp->Width, Comp->Height, Width, Height, CompUV);
+        if (UV.x <= 1.0f && UV.x >= 0.0f && UV.y <= 1.0f && UV.y >= 0.0f && Layer->IsSelected)
+        {
+            return 1;
+        }
+    }
+    return 0;
+}
+
 // TODO(fox): Precomps?
 static int32
 Layer_TestSelection(memory *Memory, project_state *State, ui *UI, sorted_comp_array *SortedCompArray, sorted_layer_array *SortedLayerArray, uint16 PrincipalIndex)
@@ -513,6 +536,8 @@ Shape_TestBoxSelect(layer_transforms T, uint32 CompWidth, uint32 CompHeight, uin
         P0->x = Pos0.x;
         P0->y = Pos0.y;
     }
+#endif
+#if 1
     nvg_point *P0 = &Point[PointCount-1];
     nvg_point *P1 = &Point[0];
     for (int i = 0; i < PointCount; i++) {
@@ -526,32 +551,8 @@ Shape_TestBoxSelect(layer_transforms T, uint32 CompWidth, uint32 CompHeight, uin
             return true;
         P0 = P1++;
     }
-    return false;
-#else
-    v2 *P0_B = &Box[3];
-    v2 *P1_B = &Box[0];
-    for (int x = 0; x < 4; x++) {
-        nvg_point *P0 = &Point[PointCount-1];
-        v2 Pos0 = TransformPoint(T, ShapeWidth, ShapeHeight, V2(P0->x, P0->y));
-        if (Pos0.x > Box[0].x && Pos0.x < Box[2].x && 
-            Pos0.y > Box[0].y && Pos0.y < Box[2].y)
-            return true;
-        P0->x = Pos0.x;
-        P0->y = Pos0.y;
-        nvg_point *P1 = &Point[0];
-        for (int i = 0; i < PointCount; i++) {
-            v2 Pos1 = TransformPoint(T, ShapeWidth, ShapeHeight, V2(P1->x, P1->y));
-            if (Pos1.x > Box[0].x && Pos1.x < Box[2].x && 
-                Pos1.y > Box[0].y && Pos1.y < Box[2].y)
-                return true;
-            if (Line_TestIntersect(P0->x, P0->y, P1->x, P1->y, P0_B->x, P0_B->y, P1_B->x, P1_B->y))
-                return true;
-            P0 = P1++;
-        }
-        P0_B = P1_B++;
-    }
-    return false;
 #endif
+    return false;
 }
 
 static void
@@ -575,8 +576,8 @@ Layer_TestBoxSelect(memory *Memory, project_state *State, ui *UI, sorted_comp_ar
             uint32 NumberOfVerts = NVG_FlattenPath(Memory, Shape, Layer->ShapeOpt, NVGPointData,
                                                    State, T, Shape->Width, Shape->Height, Comp->Width, Comp->Height, 1, &ShapeMin, &ShapeMax);
             v2 Box[4] = { MinPos, V2(MinPos.x, MaxPos.y), MaxPos, V2(MaxPos.x, MinPos.y) };
-            if (Shape_TestBoxSelect(T, Comp->Width, Comp->Height, Shape->Height, Shape->Width, Box, NVGPointData, NumberOfVerts)) {
-                Layer_Select(Memory, State, i);
+            if (Shape_TestBoxSelect(T, Comp->Width, Comp->Height, Shape->Width, Shape->Height, Box, NVGPointData, NumberOfVerts)) {
+                Layer_Select(Memory, State, Index_Physical);
             }
 
             Memory_PopScratch(Memory, sizeof(nvg_point) * 1024);
-- 
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