graph fixes

1 files changed, 19 insertions, 0 deletions

diff --git a/imgui_helper_widgets.cpp b/imgui_helper_widgets.cpp
index c27e947..e55a5e7 100644
--- a/imgui_helper_widgets.cpp
+++ b/imgui_helper_widgets.cpp
@@ -84,3 +84,22 @@ ImGui_Brush_CalcMousePos(project_state *State, ImGuiIO &io, ImVec2 MouseDelta, i
     }
     return MousePos;
 }
+
+static void
+ImGui_TestBoxSelection_Point(ImVec2 Pos, ImGuiIO &io, bool32 *Test)
+{
+    real32 Y_Top =    (io.MouseClickedPos[0].y < io.MousePos.y) ? io.MouseClickedPos[0].y : io.MousePos.y;
+    real32 Y_Bottom = (io.MouseClickedPos[0].y > io.MousePos.y) ? io.MouseClickedPos[0].y : io.MousePos.y;
+    real32 X_Left =   (io.MouseClickedPos[0].x < io.MousePos.x) ? io.MouseClickedPos[0].x : io.MousePos.x;
+    real32 X_Right =  (io.MouseClickedPos[0].x > io.MousePos.x) ? io.MouseClickedPos[0].x : io.MousePos.x;
+
+    if (Pos.y >= Y_Top  && Pos.y <= Y_Bottom &&
+        Pos.x >= X_Left && Pos.x <= X_Right)
+    {
+        if (!(*Test)) {
+            *Test = 1;
+        }
+    } else if (!io.KeyShift) {
+        *Test = 0;
+    }
+}