xhwkclient/XHWK.WKTool/PracticeWindow.xaml.cs

using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Ink;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Shapes;

namespace XHWK.WKTool
{
    /// <summary>
    /// 录屏画板
    /// </summary>
    public partial class PracticeWindow : Window
    {
        //声明一个 DrawingAttributes 类型的变量  
        DrawingAttributes drawingAttributes;
        public PracticeWindow()
        {
            InitializeComponent();
        }
        public void Initialize(string _imgPath)
        {
            blackboard_canvas.Strokes.Clear();
            blackboard_canvas.UseCustomCursor = true;
            //blackboard_canvas.EditingMode = InkCanvasEditingMode.EraseByStroke;
            if (File.Exists(_imgPath))
            {
                imgCanvas.Source = new BitmapImage(new Uri(_imgPath));
            }
            //创建 DrawingAttributes 类的一个实例  
            drawingAttributes = new DrawingAttributes();
            //将 InkCanvas 的 DefaultDrawingAttributes 属性的值赋成创建的 DrawingAttributes 类的对象的引用  
            //InkCanvas 通过 DefaultDrawingAttributes 属性来获取墨迹的各种设置，该属性的类型为 DrawingAttributes 型  
            blackboard_canvas.DefaultDrawingAttributes = drawingAttributes;
            Pen();
            blackboard_canvas.Cursor = Cursors.Pen;
            //Cursor cus = new Cursor(@"G:\Icon.ico");
            
            //blackboard_canvas.Cursor = cus;
        }



        /// <summary>
        /// 画笔颜色事件 白色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void White()
        {
            drawingAttributes.Color = Colors.White;
        }
        /// <summary>
        /// 画笔颜色事件 红色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Red()
        {

            //设置 DrawingAttributes 的 Color 属性设置颜色  
            drawingAttributes.Color = Colors.Red;
        }
        /// <summary>
        /// 画笔颜色事件 灰色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Gray()
        {
            drawingAttributes.Color = Colors.Gray;
        }
        /// <summary>
        /// 画笔颜色事件 青色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void CyanBlue()
        {
            drawingAttributes.Color = Colors.LimeGreen;
        }
        /// <summary>
        /// 画笔颜色事件 黄色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Yellow()
        {
            drawingAttributes.Color = Colors.Gold;
        }
        /// <summary>
        /// 画笔颜色事件 蓝色
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Blue()
        {
            drawingAttributes.Color = Colors.DeepSkyBlue;
        }
        /// <summary>
        /// 画笔粗细事件 细
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Fine()
        {
            drawingAttributes.Width = 1;
            drawingAttributes.Height = 1;
        }
        /// <summary>
        /// 画笔粗细事件 中
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void In()
        {
            drawingAttributes.Width = 3;
            drawingAttributes.Height = 3;
        }
        /// <summary>
        /// 画笔粗细事件 粗
        /// </summary>
        /// <param name="sender"></param>
        /// <param name="e"></param>
        public void Crude()
        {
            drawingAttributes.Width = 5;
            drawingAttributes.Height = 5;
        }
        public void Eraser() 
        {
            //this.type = ZPenType.Erase;
            blackboard_canvas.UseCustomCursor = false;
            blackboard_canvas.EditingMode = InkCanvasEditingMode.EraseByPoint;
            blackboard_canvas.EraserShape = new EllipseStylusShape(64, 64, 0);
        }
        public void Pen()
        {
            blackboard_canvas.EditingMode = InkCanvasEditingMode.Ink;
            blackboard_canvas.UseCustomCursor = true;
            drawingAttributes.FitToCurve = true;
            drawingAttributes.IgnorePressure = false;
            blackboard_canvas.Cursor = Cursors.Pen;
        }
    }
}