Grasshopper Plugin Developer on food4Rhino.com ** Author of “ChopChop” and “Magnifier” on food4Rhino.com ChopChop: https://www.food4rhino.com/app/chopchop using using using using using // // // // Grasshopper Plugin Developer on food4Rhino.com System; Grasshopper.Kernel; Grasshopper; Grasshopper.Kernel.Attributes; Grasshopper.GUI.Canvas; In order to load the result of this wizard, you will also need to add the output bin/ folder of this project to the list of loaded folder in Grasshopper. You can use the _GrasshopperDeveloperSettings Rhino command for that. namespace ChopChop { public class ChopChopComponent : GH_Component { ///

/// Each implementation of GH_Component must provide a public ...... void mouseup(Object sender, MouseEventArgs e) { if (isActive) { if (e.Button == mouseButton && (isNeedKeyboard && isPress || !isNeedKeyboard)) { IGH_Param source = null; IGH_Param target = null; mouseP = Instances.ActiveCanvas.CursorCanvasPosition; OnPingDocument().FindWireAt(mouseP, 8, ref source, ref target); target.RecordUndoEvent(“Removed”); target.RemoveSource(source); target.Attributes.GetTopLevel.DocObject.ExpireSolution(true); ExpireSolution(true); } } } Magnifier: https://www.food4rhino.com/app/magnifier C# Script ChopChop V1.1 using System; using System.Drawing; using System.Collections.Generic; using Grasshopper.Kernel; using Grasshopper; using Grasshopper.GUI; using Grasshopper.Kernel.Attributes; using Grasshopper.GUI.Canvas; using System.Windows.Forms; using System.Windows.Input; // In order to load the result of this wizard, you will also need to // add the output bin/ folder of this project to the list of loaded // folder in Grasshopper. // You can use the _GrasshopperDeveloperSettings Rhino command for that. namespace ChopChop { public class ChopChopComponent : GH_Component { ///

/// Each implementation of GH_Component must provide a public /// constructor without any arguments. /// Category represents the Tab in which the component will appear, /// Subcategory the panel. If you use non-existing tab or panel names, /// new tabs/panels will automatically be created. ///

/// /// /// Log_V1.1 200522: /// 1. Fixed Record Undo Event; /// 2. Activated by default; /// 3. Add right click menu to switch modes: Ctrl + Mouse Left or Mouse Thumb Button; /// 4. Fixed the bug of too large detecting radius; /// 5. Fixed the bug of bypassing detecting when user reconnected the same wire; /// public void toggleActive() { this.isActive = !this.isActive; this.updateMessage(); this.ExpireSolution(true); } public ChopChopComponent() : base(“ChopChop”, “ChopChop”, “One click delete the wire with mouse thumb button”, “Params”, “Util”) { } ///

/// Registers all the input parameters for this component. ///

protected override void RegisterInputParams(GH_Component.GH_InputParamManager pManager) { } ///

/// Registers all the output parameters for this component. ///

protected override void RegisterOutputParams(GH_Component.GH_OutputParamManager pManager) { pManager.AddTextParameter(“message”, “message”, “running message”, GH_ParamAccess.item); } ///

/// This is the method that actually does the work. ///

/// The DA object is used to retrieve from inputs and store in outputs. protected override void SolveInstance(IGH_DataAccess DA) { Instances.DocumentEditor.KeyDown -= ghkeydown; /// 订阅按键 Instances.DocumentEditor.KeyDown += ghkeydown; Instances.DocumentEditor.KeyUp -= ghkeyup; Instances.DocumentEditor.KeyUp += ghkeyup; Instances.ActiveCanvas.MouseUp -= mouseup; Instances.ActiveCanvas.MouseUp += mouseup; DA.SetData(“message”, text().ToString()); public override void CreateAttributes() { this.m_attributes = new ChopChopAttributes(this); } /// 订阅按键 //////////////// 订阅鼠标 } public PointF mouseP; public Boolean isActive = true; public Boolean isPress = false; public MouseButtons mouseButton = MouseButtons.Left; public bool isNeedKeyboard = true; public bool isThumbButton = false; public bool isCtrlLeft = true; public void updateMessage() { base.Message = (this.isActive ? “Active” : “Inactive”); } void ghkeydown(Object sender, System.Windows.Forms.KeyEventArgs e) { if (isNeedKeyboard && isActive) { isPress = false; if (e.Control && !e.Shift) isPress = true; } } void ghkeyup(Object sender, System.Windows.Forms.KeyEventArgs e) { if (isNeedKeyboard && isActive) isPress = false; ExpireSolution(true); } void mouseup(Object sender, MouseEventArgs e) { if (isActive) { if (e.Button == mouseButton && (isNeedKeyboard && isPress || !isNeedKeyboard)) { IGH_Param source = null; IGH_Param target = null; mouseP = Instances.ActiveCanvas.CursorCanvasPosition; public class ChopChopAttributes : GH_ComponentAttributes { public ChopChopAttributes(ChopChopComponent owner) : base(owner) { } OnPingDocument().FindWireAt(mouseP, 8, ref source, ref target); target.RecordUndoEvent(“Removed”); target.RemoveSource(source); } target.Attributes.GetTopLevel.DocObject.ExpireSolution(true); ExpireSolution(true); } } public String text() { String message; if (isActive) { if (isNeedKeyboard) return message = “Active!\nPlease use Ctrl + Mouse Left button to delete the wires\nRight click to switch button”; } else return message = “Active!\nPlease use mouse thumb button to delete the wires\nRight click to switch button”; } else return message = “Inactive!\nPlease double click the icon to active this component”; public void toggleActive() { this.isActive = !this.isActive; this.updateMessage(); this.ExpireSolution(true); } // Token: 0x06000021 RID: 33 RVA: 0x000029D4 File Offset: 0x00000BD4 public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_Canvas- public override void CreateAttributes() { this.m_attributes = new ChopChopAttributes(this); } public void updateMessage() { base.Message = (this.isActive ? “Active” : “Inactive”); } public class ChopChopAttributes : GH_ComponentAttributes { public ChopChopAttributes(ChopChopComponent owner) : base(owner) { } MouseEvent e) { // Token: 0x06000021 RID: 33 RVA: 0x000029D4 File Offset: 0x00000BD4 public override GH_ObjectResponse RespondToMouseDoubleClick(GH_Canvas sender, GH_CanvasMouseEvent e) { ChopChopComponent deletewires = base.Owner as ChopChopComponent; bool flag = deletewires != null; GH_ObjectResponse result; if (flag) { deletewires.toggleActive(); result = Grasshopper.GUI.Canvas.GH_ObjectResponse.Handled; } else { } } result = base.RespondToMouseDoubleClick(sender, e); } return result; protected override void AppendAdditionalComponentMenuItems(ToolStripDropDown menu) { base.AppendAdditionalComponentMenuItems(menu); Menu_AppendItem(menu, “Ctrl + Mouse Left”, Menu_CtrlLeft, true, isCtrlLeft); Menu_AppendItem(menu, “Mouse ThumbButton”, Menu_ThumbButton, true, isThumbButton); } private void Menu_ThumbButton(object sender, EventArgs e) { isNeedKeyboard = false; mouseButton = MouseButtons.XButton1; } isThumbButton = true; isCtrlLeft = false; private void Menu_CtrlLeft(object sender, EventArgs e) { isNeedKeyboard = true; mouseButton = MouseButtons.Left; } } else { isThumbButton = false; isCtrlLeft = true; public override void AddedToDocument(GH_Document document) { base.AddedToDocument(document); this.updateMessage(); ExpireSolution(true); } public override void RemovedFromDocument(GH_Document document) { this.isActive = false; base.RemovedFromDocument(document); ExpireSolution(true); } ///

/// Provides an Icon for every component that will be visible in the User Interface. /// Icons need to be 24x24 pixels. ///

protected override System.Drawing.Bitmap Icon { get { // You can add image files to your project resources and access them like this: //return Resources.IconForThisComponent; return Properties.Resources.deleteWires; } } } 64 } ChopChopComponent deletewires = base.Owner as ChopChopComponent; bool flag = deletewires != null; GH_ObjectResponse result; if (flag) { deletewires.toggleActive(); result = Grasshopper.GUI.Canvas.GH_ObjectResponse.Handled; } ///

/// Each component must have a unique Guid to identify it. /// It is vital this Guid doesn’t change otherwise old ghx files /// that use the old ID will partially fail during loading. ///

public override Guid ComponentGuid { get { return new Guid(“ca67caa2-0ea3-43d5-b2d5-5a6426ec2033”); } } ...... } result = base.RespondToMouseDoubleClick(sender, e); } return result; Columnist of GH Skill on Da Shui Niu & Zhihu.com