using System.ComponentModel;
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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
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{
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partial class UIControl
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{
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private Sprite m_Sprite;
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/// <summary>
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/// 获取精灵
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/// </summary>
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protected virtual Sprite Sprite
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{
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get
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{
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this.CheckDisposed();
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if (this.m_Sprite == null)
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this.m_Sprite = new Sprite(this);
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return this.m_Sprite;
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}
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}
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private int m_UpdateSuspendCount;
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/// <summary>
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/// 获取刷新操作是否被挂起
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/// </summary>
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[Browsable(false), DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)]
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public bool UpdateSuspended
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{
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get
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{
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return this.m_UpdateSuspendCount != 0 || (this.m_UIParent != null && this.m_UIParent.UpdateSuspended);
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}
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}
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/// <summary>
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/// 渲染控件
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/// </summary>
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/// <param name="e">数据</param>
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protected virtual void RenderSelf(PaintEventArgs e)
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{
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//准备
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Graphics g = e.Graphics;
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Rectangle rect = this.ClientRectangle;
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//渲染
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this.Sprite.BackColor = this.BackColor;
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this.Sprite.BeginRender(g);
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this.Sprite.RenderBackColor(rect);
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this.Sprite.RenderBorder(rect);
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this.Sprite.EndRender();
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}
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/// <summary>
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/// 渲染子控件
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/// </summary>
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/// <param name="e">数据</param>
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protected virtual void RenderChildren(PaintEventArgs e)
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{
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foreach (IUIControl control in this.UIControls)
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{
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if (control.Visible)
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using (new TranslateGraphics(e.Graphics, control.Location))
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control.RenderCore(e);
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}
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}
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/// <summary>
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/// 渲染控件和子控件
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/// </summary>
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/// <param name="e">数据</param>
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void IUIControl.RenderCore(PaintEventArgs e)
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{
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this.RenderSelf(e);
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this.RenderChildren(e);
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this.RaisePaintEvent(this, e);
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}
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/// <summary>
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/// 挂起刷新 UI
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/// </summary>
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public void BeginUpdate()
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{
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this.m_UpdateSuspendCount++;
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}
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/// <summary>
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/// 恢复刷新 UI
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/// </summary>
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public void EndUpdate()
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{
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this.EndUpdate(false);
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}
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/// <summary>
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/// 恢复刷新 UI,可以选择强制刷新
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/// </summary>
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/// <param name="forceUpdate">若要执行刷新为 true,否则为 false</param>
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public void EndUpdate(bool forceUpdate)
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{
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this.m_UpdateSuspendCount--;
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this.InvalidateCore(this.ClientRectangle, false, forceUpdate);
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}
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/// <summary>
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/// 使控件工作区无效
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/// </summary>
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public void Invalidate()
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{
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this.InvalidateCore(this.ClientRectangle, false, false);
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}
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/// <summary>
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/// 使控件工作区无效
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/// </summary>
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/// <param name="invalidateChildren">使控件所在的 Win32 窗口的子控件无效为 true,否则为 false</param>
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public void Invalidate(bool invalidateChildren)
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{
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this.InvalidateCore(this.ClientRectangle, invalidateChildren, false);
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}
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/// <summary>
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/// 使控件矩形无效
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/// </summary>
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/// <param name="rc">无效矩形</param>
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public void Invalidate(Rectangle rc)
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{
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this.InvalidateCore(rc, false, false);
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}
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/// <summary>
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/// 使控件矩形无效
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/// </summary>
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/// <param name="rc">无效矩形</param>
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/// <param name="invalidateChildren">使控件所在的 Win32 窗口的子控件无效为 true,否则为 false</param>
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public void Invalidate(Rectangle rc, bool invalidateChildren)
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{
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this.InvalidateCore(rc, invalidateChildren, false);
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}
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/// <summary>
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/// 使控件矩形无效,可以选择是否强制刷新
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/// </summary>
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/// <param name="rc">无效矩形</param>
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/// <param name="invalidateChildren">使控件所在的 Win32 窗口的子控件无效为 true,否则为 false</param>
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/// <param name="forceUpdate">强制刷新为 true,否则为false</param>
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protected void InvalidateCore(Rectangle rc, bool invalidateChildren, bool forceUpdate)
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{
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if (forceUpdate || !this.UpdateSuspended)
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{
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IUIControl parent = this;
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IUIWindow window = null;
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while (parent != null && (window = parent as IUIWindow) == null)
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{
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rc.Offset(parent.Left, parent.Top);
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parent = parent.UIParent;
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}
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if (window == null)
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return;
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window.Invalidate(rc, invalidateChildren);
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}
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}
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/// <summary>
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/// 重绘所在 Win32 窗口的无效区域
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/// </summary>
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public void Update()
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{
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this.UpdateCore(false);
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}
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/// <summary>
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/// 重绘所在 Win32 窗口的无效区域,可以选择是否强制刷新
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/// </summary>
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/// <param name="forceUpdate">强制刷新为 true,否则为false</param>
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protected void UpdateCore(bool forceUpdate)
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{
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if (forceUpdate || !this.UpdateSuspended)
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{
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IUIControl parent = this;
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IUIWindow window = null;
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while (parent != null && (window = parent as IUIWindow) == null)
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parent = parent.UIParent;
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if (window == null)
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return;
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window.Update();
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}
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}
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/// <summary>
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/// 立即刷新所在 Win32 窗口和其子控件
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/// </summary>
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public void Refresh()
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{
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this.RefreshCore(false);
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}
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/// <summary>
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/// 立即刷新所在 Win32 窗口和其子控件,可以选择是否强制刷新
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/// </summary>
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/// <param name="forceUpdate">强制刷新为 true,否则为false</param>
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protected void RefreshCore(bool forceUpdate)
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{
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if (forceUpdate || !this.UpdateSuspended)
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{
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IUIControl parent = this;
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IUIWindow window = null;
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Rectangle rc = this.ClientRectangle;
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while (parent != null && (window = parent as IUIWindow) == null)
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{
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rc.Offset(parent.Left, parent.Top);
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parent = parent.UIParent;
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}
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if (window == null)
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return;
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window.Invalidate(rc, true);
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window.Update();
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}
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}
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}
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}
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