openscad-graph-editor

using Godot;

namespace OpenScadGraphEditor.Utils
{
    public static class KeyMap
    {
        private static bool IsKeyPressed(this InputEvent evt, KeyList key)
        {
            if (!evt.IsKeyPress(out var keyEvent))
            {
                return false;
            }

            return keyEvent.Scancode == (ulong) key;
        }


        private static bool IsShiftPressed(this InputEvent evt)
        {
            return IsKeyPress(evt, out var keyEvent) && keyEvent.Shift;
        }
        
        private static bool IsKeyPress(this InputEvent evt, out InputEventKey keyEvent)
        {
            keyEvent = evt as InputEventKey;
            return keyEvent is {Pressed: true};
        }

        private static bool IsCmdOrControlPressed(this InputEvent evt)
        {
            if (!IsKeyPress(evt, out var inputEventKey))
            {
                return false;
            }
            
            if (OS.GetName() == "OSX")
            {
                return inputEventKey.Command;
            }

            return inputEventKey.Control;
        }

        public static bool IsShiftPressed()
        {
            return Input.IsKeyPressed((int) KeyList.Shift);
        }
        
        public static bool IsCmdOrControlPressed()
        {
            if (OS.GetName() == "OSX")
            {
                return Input.IsKeyPressed((int) KeyList.Meta);
            }

            return Input.IsKeyPressed((int) KeyList.Control);
        }
        
        // select all
        public static bool IsSelectAll(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.A);
        
        // copy+paste
        public static bool IsCopy(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.C);
        public static bool IsPaste(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.V);
        public static bool IsCut(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.X);
        
        // duplicate
        public static bool IsDuplicate(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.D);
        
        // extract
        public static bool IsExtract(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.E);
        
        // undo/redo
        public static bool IsUndo(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.Z) && !inputEvent.IsShiftPressed();
        public static bool IsRedo(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.Z) && inputEvent.IsShiftPressed();
        
        // straighten
        public static bool IsStraighten(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.Q);
        
        // align
        public static bool IsAlignLeft(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.A) && !inputEvent.IsCmdOrControlPressed();
        public static bool IsAlignRight(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.D) && !inputEvent.IsCmdOrControlPressed();
        public static bool IsAlignTop(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.W) && !inputEvent.IsCmdOrControlPressed();
        public static bool IsAlignBottom(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.S) && !inputEvent.IsCmdOrControlPressed();
        
        // show help
        public static bool IsShowHelp(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.F1);
        
        // edit comment
        public static bool IsEditComment(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.F2);
        
        // escape
        public static bool IsEscape(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.Escape);
        
        // stylus debug (Ctrl+Shift+S)
        public static bool IsStylusDebug(this InputEvent inputEvent) => inputEvent.IsKeyPressed(KeyList.T) && inputEvent.IsCmdOrControlPressed() && inputEvent.IsShiftPressed();

        public static bool IsKeepConnectionsPressed()=> Input.IsKeyPressed((int)KeyList.Shift);

        
        // select unused (Ctrl+U)
        public static bool IsSelectUnused(this InputEvent inputEvent) => inputEvent.IsCmdOrControlPressed() && inputEvent.IsKeyPressed(KeyList.U);
        
        // we allow both backspace and delete to remove nodes
        public static bool IsRemoveNodePressed(InputEventKey evt)
        {
            return evt.IsKeyPressed(KeyList.Backspace) || evt.IsKeyPressed(KeyList.Delete);
        }
    }
}