using System.Drawing;
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using System.Windows.Forms;
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using Microsoft.Drawing;
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namespace Microsoft.Windows.Forms.Layout
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{
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/// <summary>
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/// 布局数据
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/// </summary>
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public sealed class LayoutData : DisposableMini
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{
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/// <summary>
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/// 测试用绘图对象
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/// </summary>
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public Graphics Graphics;
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/// <summary>
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/// 区域
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/// </summary>
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public Rectangle ClientRectangle;
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/// <summary>
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/// 边距
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/// </summary>
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public Padding Padding;
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/// <summary>
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/// 文本图片相对位置
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/// </summary>
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public TextImageRelation TextImageRelation;
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/// <summary>
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/// 左右反转样式
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/// </summary>
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public RightToLeft RightToLeft;
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/// <summary>
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/// 图片大小
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/// </summary>
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public Size ImageSize;
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/// <summary>
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/// 图片对齐方式
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/// </summary>
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public ContentAlignment ImageAlign;
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/// <summary>
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/// 图片偏移量
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/// </summary>
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public Point ImageOffset;
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/// <summary>
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/// 文本
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/// </summary>
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public string Text;
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/// <summary>
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/// 字体
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/// </summary>
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public Font Font;
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/// <summary>
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/// 文本对齐方式
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/// </summary>
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public ContentAlignment TextAlign;
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/// <summary>
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/// 文本偏移量
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/// </summary>
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public Point TextOffset;
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/// <summary>
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/// 输出-图片区域(必须先调用Layout()方法)
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/// </summary>
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public Rectangle OutImageBounds;//[OUT]
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/// <summary>
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/// 输出-文本区域(必须先调用Layout()方法)
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/// </summary>
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public Rectangle OutTextBounds;//[OUT]
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//==================
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private bool m_IsLayouted;
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/// <summary>
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/// 是否执行过布局操作
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/// </summary>
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public bool IsLayouted
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{
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get
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{
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return this.m_IsLayouted;
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}
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}
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private Rectangle? m_CurrentClientRectangle;
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/// <summary>
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/// 当前区域,已减去边距
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/// </summary>
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public Rectangle CurrentClientRectangle
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{
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get
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{
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if (this.m_CurrentClientRectangle == null)
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this.m_CurrentClientRectangle = RectangleEx.Subtract(this.ClientRectangle, this.Padding);
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return this.m_CurrentClientRectangle.Value;
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}
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}
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private TextImageRelation? m_CurrentTextImageRelation;
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/// <summary>
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/// 当前文本图片相对位置,已通过左右反转样式翻译
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/// </summary>
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public TextImageRelation CurrentTextImageRelation
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{
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get
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{
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if (this.m_CurrentTextImageRelation == null)
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this.m_CurrentTextImageRelation = LayoutOptions.RtlTranslateRelation(this.TextImageRelation, this.RightToLeft);
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return this.m_CurrentTextImageRelation.Value;
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}
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}
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private StringFormat m_CurrentStringFormat;
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/// <summary>
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/// 当前文本格式,渲染文本时使用
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/// </summary>
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public StringFormat CurrentStringFormat
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{
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get
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{
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if (this.m_CurrentStringFormat == null)
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this.m_CurrentStringFormat = LayoutOptions.GetStringFormat(this.TextAlign, this.RightToLeft);
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return this.m_CurrentStringFormat;
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}
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}
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private ContentAlignment? m_CurrentImageAlign;
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/// <summary>
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/// 当前图片对齐方式,已通过左右反转样式翻译
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/// </summary>
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public ContentAlignment CurrentImageAlign
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{
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get
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{
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if (this.m_CurrentImageAlign == null)
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this.m_CurrentImageAlign = LayoutOptions.RtlTranslateAlignment(this.ImageAlign, this.RightToLeft);
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return this.m_CurrentImageAlign.Value;
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}
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}
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private ContentAlignment? m_CurrentTextAlign;
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/// <summary>
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/// 当前文本对齐方式,已通过左右反转样式翻译
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/// </summary>
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public ContentAlignment CurrentTextAlign
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{
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get
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{
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if (this.m_CurrentTextAlign == null)
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this.m_CurrentTextAlign = LayoutOptions.RtlTranslateAlignment(this.TextAlign, this.RightToLeft);
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return this.m_CurrentTextAlign.Value;
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}
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}
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/// <summary>
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/// 构造函数
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/// </summary>
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public LayoutData()
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{
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}
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/// <summary>
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/// 布局文本和图片.该方法可被调用多次,但再生命周期内布局操作只会被执行一次.
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/// </summary>
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public void DoLayout()
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{
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if (this.m_IsLayouted)
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return;
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this.m_IsLayouted = true;
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LayoutOptions.LayoutTextAndImage(this);
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}
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/// <summary>
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/// 释放资源
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/// </summary>
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/// <param name="disposing">释放托管资源为true,否则为false</param>
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protected override void Dispose(bool disposing)
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{
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if (this.m_CurrentStringFormat != null)
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{
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this.m_CurrentStringFormat.Dispose();
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this.m_CurrentStringFormat = null;
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}
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}
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}
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}
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