1068 lines
37 KiB
C#
1068 lines
37 KiB
C#
using Io.Github.Kerwinxu.LibShapes.Core.Command;
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using Io.Github.Kerwinxu.LibShapes.Core.Event;
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using Io.Github.Kerwinxu.LibShapes.Core.Shape;
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using System;
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using System.Collections.Generic;
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using System.ComponentModel;
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using System.Data;
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using System.Drawing;
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using System.Drawing.Drawing2D;
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using System.Linq;
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using System.Text;
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using System.Windows.Forms;
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/**
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这个画布需要对外联系的是
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1. 各种属性
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2. objectSelected ： 选择的对象更改事件。
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*
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* **/
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namespace Io.Github.Kerwinxu.LibShapes.Core
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{
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/// <summary>
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/// 画布
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/// </summary>
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public partial class UserControlCanvas : UserControl
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{
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#region 构造函数
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public UserControlCanvas()
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{
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InitializeComponent();
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init();
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}
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private void init()
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{
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// 这里设置默认颜色
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GriddingInterval = 2; // 默认网格2mm
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commandRecorder = new CommandRecorder(); // 默认的命令记录器
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shapes = new Shapes(); // 默认的形状
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state = new State.StateStandby(this); // 默认是待机状态。
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// 这里先取得dpi
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var g = this.CreateGraphics();
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var _dpix = g.DpiX;
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var _dpiy = g.DpiY;
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g.Dispose();
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// 一堆的事件
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// 如下的鼠标事件，先将坐标转换成毫米了。
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bool isLeftDown = false; // 左键是否按下。移动的时候需要判断是否按下的。
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// todo 加入键盘事件的处理，
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this.MouseDown += (sender, e) => { if (!IsEdit) return; isLeftDown = true; if (e.Button == MouseButtons.Left) this.state.LeftMouseDown(PointTransform.pixToMM(_dpix, _dpiy, new PointF(e.X, e.Y))); this.Refresh(); };
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this.MouseMove += (sender, e) => { if (!IsEdit) return; if (!isLeftDown) return; if (e.Button == MouseButtons.Left) this.state.LeftMouseMove(PointTransform.pixToMM(_dpix, _dpiy, new PointF(e.X, e.Y))); this.Refresh(); };
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this.MouseUp += (sender, e) => { if (!IsEdit) return; isLeftDown = false; if (e.Button == MouseButtons.Left) this.state.LeftMouseUp(PointTransform.pixToMM(_dpix, _dpiy, new PointF(e.X, e.Y))); this.Refresh(); };
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this.MouseClick += (sender, e) => { if (!IsEdit) return; if (e.Button == MouseButtons.Right) this.state.RightMouseClick(PointTransform.pixToMM(_dpix, _dpiy, new PointF(e.X, e.Y))); this.Refresh(); };
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// 双缓冲，这里需要打开。
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this.DoubleBuffered = true;
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// 说是推荐如上的这个，
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//this.SetStyle(ControlStyles.AllPaintingInWmPaint | ControlStyles.ResizeRedraw | ControlStyles.UserPaint, true);
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// 这里有一个特殊的设置，如果偏移为空的话，这里默认的偏移是有这个刻度尺的
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if (shapes.pointTransform == null ||
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(shapes.pointTransform != null && shapes.pointTransform.OffsetX == 0 && shapes.pointTransform.OffsetY == 0)
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)
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{
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// 稍微多留一点出来。
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shapes.pointTransform.OffsetX = scaleWidth * 1.5f;
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shapes.pointTransform.OffsetY = scaleWidth * 1.5f;
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}
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}
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#endregion
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#region 一堆的常量
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private float scaleWidth = 6; // 刻度尺的宽度，这个是固定的，单位是mm
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private float scaleLineWidth = 0.1f; // 刻度尺上的刻度线的宽度。
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private Font scaleTextFont = new Font("Arial", 6); // 刻度尺上文字的字体。
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private float minIntervalpixel = 5; // 比如网格，如果小于这个，就不打印了。
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private Color scaleBackColor = Color.Orange;
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private float grid_width = 0.25f; // 绘制的网格的宽度
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private Brush grid_brush = new SolidBrush(Color.Black); // 网格的
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private Pen penSelectShape = new Pen(Color.Pink) { // 选择框的画笔
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DashStyle=DashStyle.Dash,
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Width = 1f
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};
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#endregion
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#region 属性
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// 如下的很多设置成属性是因为我方便从别的地方设置，这个属性其实是有个set方法的。
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/// <summary>
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/// 是否可以编辑
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/// </summary>
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public bool IsEdit { get; set; }
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/// <summary>
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/// 形状
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/// </summary>
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public Shapes shapes;
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/// <summary>
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/// 显示网格
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/// </summary>
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public bool isDrawDridding { get; set; }
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/// <summary>
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/// 网格间隔
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/// </summary>
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public int GriddingInterval { get; set; } // 默认是1，2，5mm
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/// <summary>
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/// 对齐网格，这个在移动和更改尺寸的时候用到。
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/// </summary>
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public bool isAlignDridding { get; set; }
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/// <summary>
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/// 命令记录的
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/// </summary>
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internal ICommandRecorder commandRecorder { get; set; }
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/// <summary>
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/// 是否安装了shift键
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/// </summary>
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public bool isShift { get; set; }
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private State.State _state;
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/// <summary>
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/// 现在的状态
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/// </summary>
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public State.State state { get { return _state; } set { _state = value; onStateChanged(); } }
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/// <summary>
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/// 当前选择的图形
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/// </summary>
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public ShapeEle SelectShape { get; set; }
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#endregion
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#region 事件
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#region 选择更改事件
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// 委托
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public delegate void ObjectSelected(object sender, ObjectSelectEventArgs e);
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// 事件
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public event ObjectSelected objectSelected;
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private void onObjectSelected(Object obj)
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{
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// 首先生成参数
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var args = new ObjectSelectEventArgs(obj);
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// 然后看看是否有监听的。
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if (objectSelected != null)
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{
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objectSelected(this, args);
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}
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}
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/// <summary>
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/// 给外部调用的，可以更改当前的选择。
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/// </summary>
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/// <param name="obj"></param>
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public void changeSelect(Object obj)
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{
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SelectShape = obj as ShapeEle;
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this.oldShapes = this.shapes.DeepClone();
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if (SelectShape == null)
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{
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// 这里是设置纸张。
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onObjectSelected(shapes.Paper);
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}else
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{
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onObjectSelected(obj);
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}
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}
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#endregion
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#region 状态更改事件
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// 委托
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public delegate void StateChanged(object sender, StateChangedEventArgs e);
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// 事件
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public event StateChanged stateChanged;
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private void onStateChanged()
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{
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// 首先生成参数
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var args = new StateChangedEventArgs(this.state);
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// 然后看看是否有监听的。
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if (stateChanged != null)
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{
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stateChanged(this, args);
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}
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}
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#endregion
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#region 属性更改事件处理，
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private Shapes oldShapes;
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public void propertyValueChanged(object s, PropertyValueChangedEventArgs e)
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{
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this.Refresh();
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// 这里时在发送给propertyGrid前就有保存。
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this.commandRecorder.addCommand(new Command.CommandShapesChanged()
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{
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canvas =this,
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OldShapes = this.oldShapes,
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NewShapes = this.shapes.DeepClone(),
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}) ;
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}
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#endregion
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#endregion
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#region 绘图相关
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/// <summary>
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/// 绘图
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/// </summary>
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/// <param name="sender"></param>
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/// <param name="e"></param>
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private void UserControlCanvas_Paint(object sender, PaintEventArgs e)
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{
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if (this.shapes == null) {return; }
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// 这里要重新更新一下变量,这样相当于更新一遍。
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this.shapes.Vars = this.shapes.Vars;
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// 如下的取消了双缓冲，是因为并不能达到预期，反倒是非常闪烁。
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// 最简单的方式是设置属性 this.DoubleBuffered = true;
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// 这里重新绘图用上了双缓冲
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// 1. 首先在内存中建立Graphics对象
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//BufferedGraphicsContext currentContext = BufferedGraphicsManager.Current;
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//BufferedGraphics myBuffer = currentContext.Allocate(e.Graphics, e.ClipRectangle);
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//Graphics g = myBuffer.Graphics;
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// 1. 取得Graphics对象
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Graphics g = e.Graphics;
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// 全局的偏移和缩放,全局不涉及旋转，因为刻度尺。
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var matrix = shapes.GetMatrix();
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// 背景色，默认用这个控件的背景色填充。
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g.Clear(this.BackColor);
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// 2. 形状绘图
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if (this.shapes != null)
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{
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// 绘图，并且用上了偏移和缩放。
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shapes.Draw(g, matrix);
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}
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// 3. 绘制网格
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if (isDrawDridding)
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{
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drawGrid(g);
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}
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// 4. 绘制选择框
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drawSelectRect(g);
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// 5. 绘制刻度尺
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drawScale(g);
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// 6. 这里绘制虚线，要选择哪些东西的
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if (this.state is State.ShapeRectSelect)
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{
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((State.ShapeRectSelect)this.state).Draw(g);
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}
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// 7. 刷新双缓冲
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//myBuffer.Render(e.Graphics);
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//g.Dispose();
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//myBuffer.Dispose();//释放资源
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}
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/// <summary>
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/// 绘制网格
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/// </summary>
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/// <param name="g"></param>
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private void drawGrid(Graphics g)
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{
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// 我的思路是，首先判断是否小于最小
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if (GriddingInterval / 25.4 * g.DpiX * shapes.pointTransform.Zoom < minIntervalpixel) return;
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// 如下是计算范围
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PointF p1 = new PointF(0, 0);
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PointF p2 = new PointF(this.Width / g.DpiX * 25.4f, this.Height / g.DpiY * 25.4f);
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var point1 = shapes.pointTransform.CanvasToVirtualPoint(p1); // 左上角画布的坐标
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var point2 = shapes.pointTransform.CanvasToVirtualPoint(p2); // 右下角的坐标
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// 画笔
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Pen pen = new Pen(Color.Black);
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pen.Width = 0.1f; // 画笔的用很细的。
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int x_start = (int)point1.X / GriddingInterval * GriddingInterval;
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int y_start = (int)point1.Y / GriddingInterval * GriddingInterval;
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int i_count = (int)(point2.X - point1.X) / GriddingInterval;
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int j_count = (int)(point2.Y - point1.Y) / GriddingInterval;
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// 然后这里绘制
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for (int i = 0; i < i_count; i++)
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{
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for (int j = 0; j < j_count; j++)
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{
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// 我这里是将坐标转成画布的坐标
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var point3 = new PointF(
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x_start + i * GriddingInterval,
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y_start + j * GriddingInterval);
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var point4 = shapes.pointTransform.VirtualToCanvasPoint(point3);
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// 这里进行绘制，这里实际上是绘制一个圆
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var point5 = new PointF(point4.X - grid_width/2, point4.Y - grid_width/2);
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var rect = new RectangleF(point5, new SizeF(grid_width, grid_width));
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//
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g.FillEllipse(grid_brush, rect);
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}
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}
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}
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/// <summary>
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/// 绘制选择框
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/// </summary>
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/// <param name="g"></param>
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private void drawSelectRect(Graphics g)
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{
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if(this.SelectShape != null)
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{
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// 如果有图形，就取得边框，这个边框的尺寸控件是画布的尺寸控件，已经做过转换了。
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var rect = SelectShape.GetBounds(shapes.GetMatrix());
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// 然后绘制这个边框就是了。
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GraphicsPath path = new GraphicsPath();
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path.AddRectangle(rect);
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g.DrawPath(penSelectShape, path);
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}
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}
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/// <summary>
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/// 绘制刻度。
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/// </summary>
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/// <param name="g"></param>
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private void drawScale(Graphics g)
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{
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// 这个刻度值是在上边和左边的。
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// 1 . 首先绘制刻度的背景
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// 如下是计算范围
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var point1 = shapes.pointTransform.CanvasToVirtualPoint(new PointF(0, 0)); // 左上角虚拟的坐标
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var point2 = shapes.pointTransform.CanvasToVirtualPoint(new PointF(this.Width / g.DpiX * 25.4f, this.Height / g.DpiY * 25.4f)); // 右下角的坐标
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// 如下的是计算这个自定义控件的宽度和高度，请注意，这里不算缩放。
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float w = this.Width / g.DpiX * 25.4f;
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float h = this.Height / g.DpiY * 25.4f ;
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// 控件大小不变，这个如下的就是固定的。
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g.FillRectangle(
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new SolidBrush(this.scaleBackColor),
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new RectangleF(0,0, w, scaleWidth)
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);
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g.FillRectangle(
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new SolidBrush(this.scaleBackColor),
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new RectangleF(0, 0, scaleWidth, h)
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);
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// 2.然后是各个刻度，先水平,后竖直
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Pen pen = new Pen(Color.Black);
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pen.Width = scaleLineWidth;
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// 2.1 水平刻度
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horizontal_scale_line(g, pen, point1.X, point2.X, 1, 0.5f);
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horizontal_scale_line(g, pen, point1.X, point2.X, 2, 1);
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horizontal_scale_line(g, pen, point1.X, point2.X, 5, 2);
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horizontal_scale_line(g, pen, point1.X, point2.X, 10, 3);
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horizontal_scale_text(g, new SolidBrush(Color.Black), point1.X, point2.X);
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// 2.2 垂直刻度
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vertical_scale_line(g, pen, point1.Y, point2.Y, 1, 0.5f);
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vertical_scale_line(g, pen, point1.Y, point2.Y, 2, 1);
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vertical_scale_line(g, pen, point1.Y, point2.Y, 5, 2);
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vertical_scale_line(g, pen, point1.Y, point2.Y, 10, 3);
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vertical_scale_text(g, new SolidBrush(Color.Black), point1.Y, point2.Y);
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// 3. 左上角有重复的，这里直接空白出来
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g.FillRectangle(
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new SolidBrush(this.scaleBackColor),
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new RectangleF(0, 0, scaleWidth, scaleWidth)
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);
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}
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/// <summary>
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/// 水平刻度尺
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/// </summary>
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/// <param name="g"></param>
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/// <param name="start_x">开始的x坐标</param>
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/// <param name="end_x">结束的x坐标</param>
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/// <param name="y">y坐标</param>
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/// <param name="intInterval">间隔</param>
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/// <param name="line_length">线的长度</param>
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private void horizontal_scale_line(Graphics g, Pen pen, float start_x, float end_x, int intInterval, float line_length)
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{
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// 变量
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int x_start = (int)(start_x-1)/ intInterval * intInterval;
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int x_end = (int)(end_x+1)/ intInterval * intInterval;
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int i_count = (x_end - x_start) / intInterval +1;
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// 这里要计算一下是否太密了。
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if (intInterval / 25.4 * g.DpiX * shapes.pointTransform.Zoom < minIntervalpixel) return;
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if (intInterval / 25.4 * g.DpiY * shapes.pointTransform.Zoom < minIntervalpixel) return;
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// 这里是按照画布的坐标绘制的
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// 其y坐标为y，另外向上有line_length的长度
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// 这个首先算出起始的坐标是多少
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for (int i = 0; i < i_count; i++)
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{
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PointF p1 = new PointF(x_start + i * intInterval, 0); // 虚拟的坐标。
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// 这里计算在画布中的坐标是多少
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var p3 = shapes.pointTransform.VirtualToCanvasPoint(p1);
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p3.Y = scaleWidth; // 这个是固定的。
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var p4 = new PointF(p3.X, p3.Y - line_length);
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g.DrawLine(pen, p3, p4);
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}
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}
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/// <summary>
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/// 这个是绘制文本的
|
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/// </summary>
|
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/// <param name="g"></param>
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/// <param name="pen"></param>
|
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/// <param name="start_x"></param>
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/// <param name="end_x"></param>
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private void horizontal_scale_text(Graphics g, Brush brush, float start_x, float end_x)
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{
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int intInterval = 10;
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int x_start = (int)(start_x - 1) / intInterval * intInterval;
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int x_end = (int)(end_x + 1) / intInterval * intInterval;
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int i_count = (x_end - x_start) / intInterval + 1;
|
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for (int i = 0; i < i_count; i++)
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{
|
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// 这里写文字
|
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int j = x_start + i * intInterval ;
|
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string _text = (j/ intInterval).ToString(); // 显示的是cm，默认的是毫米
|
||
// 然后求x坐标
|
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var p1 = new PointF(j, 0);
|
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var p2 = shapes.pointTransform.VirtualToCanvasPoint(p1);
|
||
p2.Y = 0;// 手动更改成0
|
||
// 这个p2坐标就是文字中线的位置，这里还要往左边移动一些。
|
||
var _size = g.MeasureString(_text, scaleTextFont);
|
||
// 然后这个转成
|
||
p2.X -= _size.Width / 2;
|
||
g.DrawString(_text, scaleTextFont, brush, p2);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 竖直的刻度尺
|
||
/// </summary>
|
||
/// <param name="g"></param>
|
||
/// <param name="start_y">开始的x坐标</param>
|
||
/// <param name="end_y">结束的x坐标</param>
|
||
/// <param name="y">y坐标</param>
|
||
/// <param name="intInterval">间隔</param>
|
||
/// <param name="line_length">线的长度</param>
|
||
private void vertical_scale_line(Graphics g, Pen pen, float start_y, float end_y, int intInterval, float line_length)
|
||
{
|
||
// 变量
|
||
int y_start = (int)(start_y - 1) / intInterval * intInterval;
|
||
int y_end = (int)(end_y + 1) / intInterval * intInterval;
|
||
int i_count = (y_end - y_start) / intInterval + 1;
|
||
// 这里要计算一下是否太密了。
|
||
if (intInterval / 25.4 * g.DpiY * shapes.pointTransform.Zoom < minIntervalpixel) return;
|
||
if (intInterval / 25.4 * g.DpiY * shapes.pointTransform.Zoom < minIntervalpixel) return;
|
||
// 这里是按照画布的坐标绘制的
|
||
// 其y坐标为y，另外向上有line_length的长度
|
||
// 这个首先算出起始的坐标是多少
|
||
for (int i = 0; i < i_count; i++)
|
||
{
|
||
PointF p1 = new PointF(0, y_start + i * intInterval); // 虚拟的坐标。
|
||
// 这里计算在画布中的坐标是多少
|
||
var p3 = shapes.pointTransform.VirtualToCanvasPoint(p1);
|
||
p3.X = scaleWidth; // 这个是固定的。
|
||
var p4 = new PointF(p3.X - line_length, p3.Y);
|
||
g.DrawLine(pen, p3, p4);
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 这个是绘制文本的
|
||
/// </summary>
|
||
/// <param name="g"></param>
|
||
/// <param name="pen"></param>
|
||
/// <param name="start_y"></param>
|
||
/// <param name="end_y"></param>
|
||
private void vertical_scale_text(Graphics g, Brush brush, float start_y, float end_y)
|
||
{
|
||
int intInterval = 10;
|
||
int y_start = (int)(start_y - 1) / intInterval * intInterval;
|
||
int y_end = (int)(end_y + 1) / intInterval * intInterval;
|
||
int i_count = (y_end - y_start) / intInterval + 1;
|
||
for (int i = 0; i < i_count; i++)
|
||
{
|
||
// 这里写文字
|
||
int j = y_start + i * intInterval;
|
||
string _text = (j / intInterval).ToString(); // 显示的是cm，默认的是毫米
|
||
// 然后求x坐标
|
||
var p1 = new PointF(0, j);
|
||
var p2 = shapes.pointTransform.VirtualToCanvasPoint(p1);
|
||
p2.X = 0;// 手动更改成0
|
||
// 这个p2坐标就是文字中线的位置，这里还要往左边移动一些。
|
||
var _size = g.MeasureString(_text, scaleTextFont);
|
||
// 然后这个转成
|
||
p2.Y -= _size.Height / 2;
|
||
g.DrawString(_text, scaleTextFont, brush, p2);
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 请注意，如下的几个操作都只是处理顶层的
|
||
|
||
/// <summary>
|
||
/// 以某个点为中心放大
|
||
/// </summary>
|
||
/// <param name="point"></param>
|
||
public void zoom(PointF point)
|
||
{
|
||
// 1. 取得这个点在虚拟画布上的地址
|
||
var point2 = this.shapes.pointTransform.CanvasToVirtualPoint(point);
|
||
// 2. 更新偏移
|
||
this.shapes.pointTransform.OffsetX -= point2.X * (this.shapes.pointTransform.Zoom );
|
||
this.shapes.pointTransform.OffsetY -= point2.Y * (this.shapes.pointTransform.Zoom );
|
||
// 3 放大
|
||
this.shapes.pointTransform.Zoom *= 2;
|
||
// 4. 刷新
|
||
this.Refresh();
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 以某个点为中心缩小。
|
||
/// </summary>
|
||
/// <param name="point"></param>
|
||
public void reduce(PointF point)
|
||
{
|
||
// 1. 取得这个点在虚拟画布上的地址
|
||
var point2 = this.shapes.pointTransform.CanvasToVirtualPoint(point);
|
||
// 2. 更新偏移
|
||
this.shapes.pointTransform.OffsetX += point2.X * (this.shapes.pointTransform.Zoom/2);
|
||
this.shapes.pointTransform.OffsetY += point2.Y * (this.shapes.pointTransform.Zoom/2);
|
||
// 3 放大
|
||
this.shapes.pointTransform.Zoom /= 2;
|
||
// 4. 刷新
|
||
this.Refresh();
|
||
}
|
||
|
||
/// <summary>
|
||
/// 放大到屏幕
|
||
/// </summary>
|
||
public void zoomToScreen()
|
||
{
|
||
if (shapes != null)
|
||
{
|
||
var g = this.CreateGraphics();
|
||
shapes.zoomTo(
|
||
g.DpiX,
|
||
g.DpiY,
|
||
this.Width,
|
||
this.Height,
|
||
scaleWidth/25.4f*g.DpiX* 1.5f // scaleWidth/25.4f*g.DpiX表示刻度尺实际的像素宽度，
|
||
// 而*1.5，表示两边流出1.5倍数的距离，这样，图形也不会太靠近边界。
|
||
);
|
||
this.Refresh();
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 添加一个新的形状
|
||
/// </summary>
|
||
/// <param name="shape"></param>
|
||
public void addShape(ShapeEle shape)
|
||
{
|
||
// 只是在顶层添加。
|
||
shapes.lstShapes.Add(shape);
|
||
changeSelect(shape); // 添加后是当作当前选择的。
|
||
}
|
||
|
||
/// <summary>
|
||
/// 删除，
|
||
/// </summary>
|
||
public void deleteShapes(ShapeEle shape)
|
||
{
|
||
//返回的是第几个项目删除的。
|
||
if (shape is ShapeMultiSelect) // 这里表示选择了多个。
|
||
{
|
||
// 这里说明是选择的一堆，这里一个一个的删除
|
||
foreach (var item in ((ShapeMultiSelect)shape).shapes)
|
||
{
|
||
deleteShapes(item);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
// 这里说明可能是一个形状。
|
||
var index = shapes.lstShapes.IndexOf(shape);
|
||
if (index == -1) return;
|
||
var oldShapes = this.shapes.DeepClone();
|
||
shapes.lstShapes.Remove(shape);// 请注意，这里只是删除顶层的。
|
||
// 这里添加command
|
||
commandRecorder.addCommand(new Command.CommandShapesChanged() {
|
||
canvas=this,
|
||
OldShapes = oldShapes,
|
||
NewShapes = this.shapes.DeepClone()
|
||
});
|
||
}
|
||
|
||
this.Refresh();// 刷新。
|
||
}
|
||
|
||
/// <summary>
|
||
/// 删除已经选中的形状
|
||
/// </summary>
|
||
public void deleteShapes()
|
||
{
|
||
// 这里要判断一下是否是群组
|
||
if (SelectShape != null)
|
||
{
|
||
deleteShapes(SelectShape);
|
||
}
|
||
|
||
}
|
||
|
||
// todo 请注意，如下的几个全部要添加命令
|
||
|
||
public void forward(int id)
|
||
{
|
||
// todo 添加命令。
|
||
var shape = shapes.getShape(id);
|
||
int index = shapes.lstShapes.IndexOf(shape);// 取得下标
|
||
if (index > 0)
|
||
{
|
||
// 如果不是最前面的
|
||
shapes.lstShapes.Remove(shape);
|
||
shapes.lstShapes.Insert(index - 1, shape);
|
||
}
|
||
}
|
||
public void forwardToFront(int id)
|
||
{
|
||
// todo 添加命令。
|
||
var shape = shapes.getShape(id);
|
||
int index = shapes.lstShapes.IndexOf(shape);// 取得下标
|
||
if (index > 0)
|
||
{
|
||
// 如果不是最前面的
|
||
shapes.lstShapes.Remove(shape);
|
||
shapes.lstShapes.Insert(0, shape);
|
||
}
|
||
}
|
||
|
||
public void backward(int id)
|
||
{
|
||
// todo 添加命令。
|
||
var shape = shapes.getShape(id);
|
||
int index = shapes.lstShapes.IndexOf(shape);// 取得下标
|
||
if (index >= 0 && index < shapes.lstShapes.Count-1)
|
||
{
|
||
// 如果不是最前面的
|
||
shapes.lstShapes.Remove(shape);
|
||
shapes.lstShapes.Insert(index + 1, shape);
|
||
}
|
||
}
|
||
public void backwardToEnd(int id)
|
||
{
|
||
// todo 添加命令。
|
||
var shape = shapes.getShape(id);
|
||
int index = shapes.lstShapes.IndexOf(shape);// 取得下标
|
||
if (index >= 0 && index < shapes.lstShapes.Count - 1)
|
||
{
|
||
// 如果不是最前面的
|
||
shapes.lstShapes.Remove(shape);
|
||
shapes.lstShapes.Insert(shapes.lstShapes.Count-1, shape);
|
||
}
|
||
}
|
||
|
||
|
||
public void forward()
|
||
{
|
||
//这里用当前的
|
||
if (SelectShape != null)
|
||
{
|
||
forward(SelectShape.ID);
|
||
}
|
||
}
|
||
public void forwardToFront()
|
||
{
|
||
if (SelectShape != null)
|
||
{
|
||
forwardToFront(SelectShape.ID);
|
||
}
|
||
}
|
||
public void backward()
|
||
{
|
||
//这里用当前的
|
||
if (SelectShape != null)
|
||
{
|
||
backward(SelectShape.ID);
|
||
}
|
||
}
|
||
public void backwardToEnd()
|
||
{
|
||
//这里用当前的
|
||
if (SelectShape != null)
|
||
{
|
||
backwardToEnd(SelectShape.ID);
|
||
}
|
||
}
|
||
|
||
|
||
|
||
/// <summary>
|
||
/// 组成群组
|
||
/// </summary>
|
||
/// <param name="shapes"></param>
|
||
public ShapeGroup mergeGroup(List<ShapeEle> shapes)
|
||
{
|
||
// todo 添加命令。
|
||
ShapeGroup group = new ShapeGroup();
|
||
group.shapes.AddRange(shapes);
|
||
group.ID = this.shapes.getNextId();
|
||
foreach (var item in shapes)
|
||
{
|
||
this.shapes.lstShapes.Remove(item); // 从旧的里边删除。
|
||
}
|
||
addShape(group);
|
||
return group;
|
||
}
|
||
|
||
/// <summary>
|
||
/// 取消这个群组
|
||
/// </summary>
|
||
/// <param name="group"></param>
|
||
public void cancelGroup(ShapeGroup group)
|
||
{
|
||
this.shapes.lstShapes.Remove(group);
|
||
foreach (var item in group.shapes)
|
||
{
|
||
this.shapes.lstShapes.Add(item);
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将选择的组成群组
|
||
/// </summary>
|
||
public void mergeGroup()
|
||
{
|
||
if (SelectShape is ShapeGroup)
|
||
{
|
||
var group = mergeGroup(((ShapeGroup)SelectShape).shapes);
|
||
changeSelect(group);
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 将选择的取消群组
|
||
/// </summary>
|
||
public void cancelGroup()
|
||
{
|
||
// 得判断
|
||
if (SelectShape is ShapeGroup)
|
||
{
|
||
cancelGroup((ShapeGroup)SelectShape);
|
||
changeSelect(null);// 取消选择
|
||
}
|
||
}
|
||
|
||
#region 各种对齐
|
||
|
||
|
||
/// <summary>
|
||
/// 上对齐
|
||
/// </summary>
|
||
public void align_top() {
|
||
if (this.SelectShape is Shape.ShapeMultiSelect)
|
||
{
|
||
//
|
||
float _y = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].Y;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.Y = _y;
|
||
}
|
||
this.Refresh();
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 下对齐
|
||
/// </summary>
|
||
public void align_bottom() {
|
||
|
||
if (this.SelectShape is Shape.ShapeMultiSelect)
|
||
{
|
||
//
|
||
float _y = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].Y;
|
||
float _height = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].Height;
|
||
float _y_height = _y + _height;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.Y = _y_height - item.Height; // 减去高度，得到新的y
|
||
}
|
||
this.Refresh();
|
||
}
|
||
}
|
||
|
||
|
||
/// <summary>
|
||
/// 左对齐
|
||
/// </summary>
|
||
public void align_left() {
|
||
if (this.SelectShape is Shape.ShapeMultiSelect)
|
||
{
|
||
//
|
||
float _x = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].X;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.X = _x;
|
||
}
|
||
this.Refresh();
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 右对齐
|
||
/// </summary>
|
||
public void align_right()
|
||
{
|
||
if (this.SelectShape is Shape.ShapeMultiSelect)
|
||
{
|
||
float _x = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].X;
|
||
float _width = ((Shape.ShapeMultiSelect)this.SelectShape).shapes[0].Width;
|
||
float _y_width = _x + _width;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.X = _y_width - item.Width; // 减去高度，得到新的y
|
||
}
|
||
this.Refresh();
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 水平居中。
|
||
/// </summary>
|
||
public void align_center() {
|
||
if (this.SelectShape is ShapeMultiSelect)
|
||
{
|
||
// 首先取得哪个的宽度是最宽的
|
||
float _x=0, _width=0;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
if (item.Width > _width)
|
||
{
|
||
_x = item.X;
|
||
_width = item.Width;
|
||
}
|
||
}
|
||
|
||
// 然后所有的都超这个对齐
|
||
float _center = _x + _width / 2;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.X = _center - item.Width / 2;
|
||
}
|
||
|
||
this.Refresh();
|
||
|
||
}
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 垂直居中。
|
||
/// </summary>
|
||
public void align_midele() {
|
||
if (this.SelectShape is ShapeMultiSelect)
|
||
{
|
||
// 首先取得哪个的宽度是最宽的
|
||
float _y = 0, _height = 0;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
if (item.Height > _height)
|
||
{
|
||
_y = item.Y;
|
||
_height = item.Height;
|
||
}
|
||
}
|
||
|
||
// 然后所有的都超这个对齐
|
||
float _midele = _y + _height / 2;
|
||
foreach (var item in ((Shape.ShapeMultiSelect)this.SelectShape).shapes)
|
||
{
|
||
item.Y = _midele - item.Height / 2;
|
||
}
|
||
|
||
this.Refresh();
|
||
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 撤销重做
|
||
/// <summary>
|
||
/// 撤销
|
||
/// </summary>
|
||
public void undo()
|
||
{
|
||
this.commandRecorder.Undo();
|
||
this.Refresh();
|
||
}
|
||
|
||
public void redo()
|
||
{
|
||
this.commandRecorder.Redo();
|
||
this.Refresh();
|
||
}
|
||
|
||
#endregion
|
||
|
||
#region 剪切复制粘贴
|
||
|
||
/// <summary>
|
||
/// 复制的保存在这里
|
||
/// </summary>
|
||
private ShapeEle _copy_shape;
|
||
|
||
/// <summary>
|
||
/// 剪切
|
||
/// </summary>
|
||
public void cut()
|
||
{
|
||
//
|
||
if (SelectShape != null)
|
||
{
|
||
_copy_shape = SelectShape.DeepClone();// 先保存
|
||
deleteShapes(SelectShape);// 删除
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 复制
|
||
/// </summary>
|
||
public void copy()
|
||
{
|
||
if (SelectShape != null)
|
||
{
|
||
_copy_shape = SelectShape.DeepClone();// 跟剪切的区别是这里不删除。
|
||
}
|
||
}
|
||
|
||
/// <summary>
|
||
/// 粘贴
|
||
/// </summary>
|
||
public void paste()
|
||
{
|
||
// 我这里先思考一下思路，这个本质上是复制，
|
||
// 首先要判断一下是否是ShapeMultiSelect，如果是，表示要复制内部的，而如果不是，那么只是复制这一个。
|
||
if (_copy_shape is Shape.ShapeMultiSelect)
|
||
{
|
||
ShapeMultiSelect shapeMultiSelect = new ShapeMultiSelect();
|
||
// 这个里边所有的形状都复制
|
||
foreach (var item in ((ShapeMultiSelect)_copy_shape).shapes)
|
||
{
|
||
// 说明这里就一个形状
|
||
addShape(item);
|
||
currectIdAndYadd(item, 5); // 这个会更新id以及向下移动
|
||
shapeMultiSelect.shapes.Add(item);
|
||
}
|
||
//
|
||
changeSelect(shapeMultiSelect);
|
||
}
|
||
else
|
||
{
|
||
// 说明这里就一个形状
|
||
addShape(_copy_shape);
|
||
currectIdAndYadd(_copy_shape, 5); // 这个会更新id以及向下移动
|
||
changeSelect(_copy_shape); // 这个是当前的id
|
||
}
|
||
|
||
// 设置新的。
|
||
_copy_shape = _copy_shape.DeepClone();
|
||
|
||
this.Refresh();
|
||
|
||
}
|
||
|
||
/// <summary>
|
||
/// 矫正id的，并且矫正的需要y加上一个指定的数字的。
|
||
/// </summary>
|
||
/// <param name="shape"></param>
|
||
/// <param name="y_add"></param>
|
||
private void currectIdAndYadd(ShapeEle shape, float y_add)
|
||
{
|
||
if (shape is ShapeMulti)
|
||
{
|
||
foreach (var item in ((ShapeMultiSelect)shape).shapes)
|
||
{
|
||
currectIdAndYadd(item, y_add);
|
||
}
|
||
}
|
||
else
|
||
{
|
||
shape.ID = shapes.getNextId();
|
||
shape.Y += y_add;
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
public void selectAll()
|
||
{
|
||
// todo 全选
|
||
}
|
||
|
||
|
||
|
||
#endregion
|
||
|
||
public void setVars(Dictionary<string , string> dict)
|
||
{
|
||
this.shapes.Vars = dict;
|
||
this.Refresh();
|
||
}
|
||
|
||
|
||
#region 小函数
|
||
|
||
/// <summary>
|
||
/// 对齐网格后的坐标，这个主要是提供给更改尺寸的。
|
||
/// </summary>
|
||
/// <param name="point"></param>
|
||
/// <returns></returns>
|
||
public PointF gridAlign(PointF point)
|
||
{
|
||
// 这里首先判断是否需要对齐网格
|
||
if (isAlignDridding)
|
||
{
|
||
// 这里需要转换坐标
|
||
var p1 = this.shapes.pointTransform.CanvasToVirtualPoint(point); // 先转成虚拟的坐标
|
||
var p2 = new PointF()
|
||
{
|
||
X = ((int)Math.Round(p1.X / GriddingInterval, 0)) * GriddingInterval, // 对齐,四舍五入五
|
||
Y = ((int)Math.Round(p1.Y / GriddingInterval, 0)) * GriddingInterval,
|
||
};
|
||
return this.shapes.pointTransform.VirtualToCanvasPoint(p2); // 转成画布的坐标
|
||
|
||
}
|
||
else
|
||
{
|
||
return point; // 不用对齐，直接返回原先的。
|
||
}
|
||
}
|
||
|
||
#endregion
|
||
|
||
}
|
||
}
|
