internal void RefreshInRect(Graphics eg, Rectangle rect) {
if (!gbRefresh) return;
Random rnd = new Random();
if (rect.Width <= 0 || rect.Height <= 0) return;
//using (Graphics eg = base.CreateGraphics()) {
using (Bitmap Bmp = new Bitmap(rect.Width, rect.Height)) {
using (Graphics g = Graphics.FromImage(Bmp)) {
g.Clear(Color.White);
//发送绘制消息
PaintMessage m = new PaintMessage(g, rect);
gManager.SendMessage(m);
}
if (eg != null) {
eg.DrawImageUnscaled(Bmp, rect.X, rect.Y);
} else {
try {
using (Graphics g = this.CreateGraphics()) {
g.DrawImageUnscaled(Bmp, rect.X, rect.Y);
//System.Diagnostics.Debug.WriteLine("GPanel\\>RefreshInRect" + rect.ToString());
}
} catch { }
}
}
}
/// <summary>
/// 范围重新绘制
/// </summary>
/// <param name="rect"></param>
internal void RefreshInRect(Graphics eg, Rectangle rect) {
OnApply(rect);//调用继承处理
//根据容器的设定重新设定请求区域
int nTop = base.ShadowsSize + base.BorderSize + base.PaddingTop;
int nLeft = base.ShadowsSize + base.BorderSize + base.PaddingLeft;
int nWidth = base.Width - (base.ShadowsSize * 2 + base.BorderSize * 2 + base.PaddingRight + base.PaddingLeft) + 1;
int nHeight = base.Height - (base.ShadowsSize * 2 + base.BorderSize * 2 + base.PaddingBottom + base.PaddingTop) + 1;
int nRectWidth = rect.Width;
int nRectHeight = rect.Height;
if (rect.Right > nWidth) nRectWidth = nWidth - rect.Left;
if (rect.Bottom > nHeight) nRectHeight = nHeight - rect.Top;
Rectangle rectNew = new Rectangle(rect.Left, rect.Top, nRectWidth, nRectHeight);
Rectangle rectAbs = new Rectangle(rect.Left, rect.Top, rect.Width, rect.Width);
if (nRectWidth <= 0 || nRectHeight <= 0) return;
//base.Debug(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.FullName, "RefreshInRect", "Rectangle", rect.ToString());
//base.Debug(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.FullName, "RefreshInRect", "RefreshAllow", base.RefreshAllow.ToString());
//创建一个临时画布，更新当前容器绘制缓存
using (Bitmap Bmp = new Bitmap(nRectWidth, nRectHeight)) {
using (Graphics g = Graphics.FromImage(Bmp)) {
g.Clear(Color.White);
//发送绘制消息
PaintMessage m = new PaintMessage(g, rectNew);
PaintMessage mAbs = new PaintMessage(g, rectAbs);
//base.Debug(System.Reflection.MethodBase.GetCurrentMethod().DeclaringType.FullName, "RefreshInRect", "rectNew", rectNew.ToString());
for (int i = 0; i < gChildren.Count; i++) {
if (gChildren[i].Visible) {
if (gChildren[i].Absolute) {
gChildren[i].SendMessage(mAbs);
} else {
gChildren[i].SendMessage(m);
}
if (m.Suppress) return;
}
}
}
//更新到容器缓存
if (eg != null) {
eg.DrawImageUnscaled(Bmp, nLeft + rect.Left, nTop + rect.Top);
} else {
if (base.Cache != null) {
using (Graphics g = Graphics.FromImage(base.Cache)) {
g.DrawImageUnscaled(Bmp, nLeft + rect.Left, nTop + rect.Top);
}
}
}
}
//当允许绘制时路由提交刷新请求
if (base.RefreshAllow) {
Rectangle rectSubmit = new Rectangle(rect.Left + this.Left + nLeft, rect.Top + this.Top + nTop, nRectWidth, nRectHeight);
//具有父对象，先向父对象提交刷新，如无父对象，则提交给管理器
if (base.Parent != null) { base.Parent.RefreshInRect(rectSubmit); } else {
if (base.Manager != null) base.Manager.RefreshInRect(rectSubmit);
}
}
}
/// <summary>
/// 范围重新绘制
/// </summary>
/// <param name="rect"></param>
internal void RefreshInRect(Rectangle rect) {
//base.Debug(rect.ToString());
Messages.PaintMessage msg = new PaintMessage(null, rect);
this.Apply(this, msg);
}