c# CAD二次开发 添加按钮Ribbon

这篇文章是教大家怎样子创建自己的Ribbon按钮界面（如下图），以下示例代码在CAD2020中运行实现。

背景

创建一个属于自己的Ribbon按钮（如下图） 理解Ribbon、Panel、Tab的关系（如下图），一个Tab包含多个Panel，一个Panel包含多个RibbonButton

代码

using Autodesk.AutoCAD.Runtime;

using Autodesk.Windows;

using System;

using System.Collections.Generic;

using System.Drawing;

using System.IO;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Interop;

using System.Windows.Media.Imaging;

[assembly:CommandClass(typeof(CADBlogDemo.Ribbon))]

namespace CADBlogDemo

{

public class Ribbon

{

[CommandMethod("RibbonCmd")]

public void RibbonCmd()

{

//得到所有的Ribbon选项卡列表集合

RibbonControl ribbonCtrl = ComponentManager.Ribbon;

if (ribbonCtrl == null) return;

//加个判断，如果有了这个选项卡就不重复添加

if (ribbonCtrl.Tabs.FirstOrDefault(x => x.Title == "MyRibbon") != null) return;

//添加选项卡

RibbonTab tab = AddTab(ribbonCtrl, "MyRibbon", "RibbonId1", true);

//添加面板

RibbonPanelSource panel = AddPanel(tab, "我就是我");

//添加按钮

RibbonButton button = CreateRibbonButton(panel, "点我\n点我", "Demo\n", $@"{Path.GetDirectoryName(typeof(Ribbon).Assembly.Location)}\Images\123.png");

}

///

/// Ribbon控制器

/// 选项卡标题

/// 选项卡ID

/// 是否置为当前

/// RibbonTab

public RibbonTab AddTab( RibbonControl ribbonCtrl, string title, string id, bool isActive)

{

RibbonTab tab = new RibbonTab();

tab.Title = title;

tab.Id = id;

ribbonCtrl.Tabs.Add(tab);

tab.IsActive = isActive;

return tab;

}

///

/// Ribbon选项卡

/// 面板标题

/// RibbonPanelSource

public RibbonPanelSource AddPanel(RibbonTab tab, string title)

{

RibbonPanelSource panelSource = new RibbonPanelSource();

panelSource.Title = title;

RibbonPanel ribbonPanel = new RibbonPanel();

ribbonPanel.Source = panelSource;

tab.Panels.Add(ribbonPanel);

return panelSource;

}

///

/// 面板

/// 按钮显示名字

/// 需要绑定的命令

/// 图片路径

///

public RibbonButton CreateRibbonButton(RibbonPanelSource panel, string name, string cmd, string photoPath)

{

RibbonButton button = new RibbonButton();

button.Text = name;

button.ShowText = true;

Bitmap bitmap = new Bitmap(photoPath);

BitmapSource bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, System.Windows.Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());

button.Image = bitmapSource; //按钮图片

button.LargeImage = bitmapSource; //按钮大图片

button.Size = RibbonItemSize.Large;

button.Orientation = System.Windows.Controls.Orientation.Vertical;

button.CommandHandler = new RibbonCommandHandler();

button.CommandParameter = cmd;

panel.Items.Add(button);

return button;

}

}

public class RibbonCommandHandler : System.Windows.Input.ICommand

{

public bool CanExecute(object parameter)

{

return true;

}

public event EventHandler CanExecuteChanged;

public void Execute(object parameter)

{

//is from Ribbon Button

RibbonButton ribBtn = parameter as RibbonButton;

if (ribBtn != null)

{

//execute the command

Autodesk.AutoCAD.ApplicationServices.Application

.DocumentManager.MdiActiveDocument

.SendStringToExecute(

(string)ribBtn.CommandParameter, true, false, true);

}

}

}

}

讲解

先得到所有的Tab列表集合，判断是否已经存在自己的选项卡了

//得到所有的Ribbon选项卡列表集合

RibbonControl ribbonCtrl = ComponentManager.Ribbon;

if (ribbonCtrl == null) return;

新建选项卡（Tab）

///

/// Ribbon控制器

/// 选项卡标题

/// 选项卡ID

/// 是否置为当前

/// RibbonTab

public RibbonTab AddTab( RibbonControl ribbonCtrl, string title, string id, bool isActive)

{

RibbonTab tab = new RibbonTab();

tab.Title = title;

tab.Id = id;

ribbonCtrl.Tabs.Add(tab);

tab.IsActive = isActive;

return tab;

}

新建面板（panel）

///

/// Ribbon选项卡

/// 面板标题

/// RibbonPanelSource

public RibbonPanelSource AddPanel(RibbonTab tab, string title)

{

RibbonPanelSource panelSource = new RibbonPanelSource();

panelSource.Title = title;

RibbonPanel ribbonPanel = new RibbonPanel();

ribbonPanel.Source = panelSource;

tab.Panels.Add(ribbonPanel);

return panelSource;

}

新建按钮（Ribbon）

///

/// 面板

/// 按钮显示名字

/// 需要绑定的命令

/// 图片路径

///

public RibbonButton CreateRibbonButton(RibbonPanelSource panel, string name, string cmd, string photoPath)

{

RibbonButton button = new RibbonButton();

button.Text = name;

button.ShowText = true;

Bitmap bitmap = new Bitmap(photoPath);

BitmapSource bitmapSource = Imaging.CreateBitmapSourceFromHBitmap(bitmap.GetHbitmap(), IntPtr.Zero, System.Windows.Int32Rect.Empty, BitmapSizeOptions.FromEmptyOptions());

button.Image = bitmapSource; //按钮图片

button.LargeImage = bitmapSource; //按钮大图片

button.Size = RibbonItemSize.Large;

button.Orientation = System.Windows.Controls.Orientation.Vertical;

button.CommandHandler = new RibbonCommandHandler();

button.CommandParameter = cmd;

panel.Items.Add(button);

return button;

}

RibbonCommandHandler类 继承于ICommand类，作用是控制按钮是否可用

public class RibbonCommandHandler : System.Windows.Input.ICommand

{

public bool CanExecute(object parameter)

{

return true;

}

public event EventHandler CanExecuteChanged;

public void Execute(object parameter)

{

//is from Ribbon Button

RibbonButton ribBtn = parameter as RibbonButton;

if (ribBtn != null)

{

//execute the command

Autodesk.AutoCAD.ApplicationServices.Application

.DocumentManager.MdiActiveDocument

.SendStringToExecute(

(string)ribBtn.CommandParameter, true, false, true);

}

}

}

调用的目标功能类

using Autodesk.AutoCAD.Runtime;

using System.Windows;

[assembly: CommandClass(typeof(CADBlogDemo.DemoCmd))]

namespace CADBlogDemo

{

public class DemoCmd

{

[CommandMethod("Demo")]

public void Demo()

{

MessageBox.Show("不一样的烟火");

}

}

}

最后在CAD中用Netload添加编译的Dll，运行“RibbonCmd”命令，就可以看到选项卡了

最后

创建按钮的时候，传入的是相对地址，复制代码使用的时候，可以先换成绝对地址，实现效果后再换相对地址。赶紧去实现第一个按钮吧

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