private void GetBitmaps()
{
if (myBitmap == null ||
myAlphaBitmap == null ||
myBitmap.Width != Width ||
myBitmap.Height != Height ||
myAlphaBitmap.Width != Width ||
myAlphaBitmap.Height != Height)
{
myBitmap = null;
myAlphaBitmap = null;
}
if (myBitmap == null)
{
myBitmap = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);//(Width,Height);
myUpToDate = false;
}
if (!myUpToDate)
{
this.SetStyle(ControlStyles.UserPaint, false);
WIN32.CaptureWindow(this, ref myBitmap);
this.SetStyle(ControlStyles.UserPaint, true);
this.SetStyle(ControlStyles.SupportsTransparentBackColor, true);
this.BackColor = Color.FromArgb(myBackAlpha, myBackColor);
}
Rectangle r2 = new Rectangle(0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height);
ImageAttributes tempImageAttr = new ImageAttributes();
ColorMap[] tempColorMap = new ColorMap[1];
tempColorMap[0] = new ColorMap();
tempColorMap[0].OldColor = Color.FromArgb(255, myBackColor);
tempColorMap[0].NewColor = Color.FromArgb(myBackAlpha, myBackColor);
tempImageAttr.SetRemapTable(tempColorMap);
if (myAlphaBitmap != null)
{
myAlphaBitmap.Dispose();
}
myAlphaBitmap = new Bitmap(this.ClientRectangle.Width, this.ClientRectangle.Height);
Graphics tempGraphics1 = Graphics.FromImage(myAlphaBitmap);
//tempGraphics1.DrawImage(myBitmap, r2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, GraphicsUnit.Pixel, tempImageAttr);
tempGraphics1.DrawImage(myBitmap, r2, 0, 0, this.ClientRectangle.Width, this.ClientRectangle.Height, GraphicsUnit.Pixel, tempImageAttr);
tempGraphics1.Dispose();
//if (this.Focused && (this.SelectionLength == 0))
//{
// Graphics tempGraphics2 = Graphics.FromImage(myAlphaBitmap);
// if (myCaretState)
// {
// Point caret = this.findCaret();
// Pen p = new Pen(this.ForeColor, 3);
// tempGraphics2.DrawLine(p, caret.X, caret.Y + 0, caret.X, caret.Y + myFontHeight);
// tempGraphics2.Dispose();
// }
//}
}
/// <summary>
/// 显示和消失动画
/// </summary>
private void animate()
{
if (!timer1.Enabled)
{
if (backImg != null)
{
backImg.Dispose();
}
backImg = null;
backImg = new Bitmap(base.ClientRectangle.Width, base.ClientRectangle.Height);
base.DrawToBitmap(backImg, base.ClientRectangle);
if (alphaback != null)
{
alphaback.Dispose();
}
alphaback = null;
alphaback = new Bitmap(base.ClientRectangle.Width, base.ClientRectangle.Height);
if (base.BackgroundImage != null)
{
backgroundTemp = (Bitmap)base.BackgroundImage;
base.BackgroundImage = null;
}
if (base.BackColor != Color.Transparent)
{
backcolorTemp = base.BackColor;
base.BackColor = Color.Transparent;
}
WIN32.CaptureWindow(this, ref alphaback);
if (picbox != null)
{
picbox.Dispose();
}
picbox = null;
picbox = new uPictureBox();
this.Controls.Add(picbox);
picbox.Dock = DockStyle.Fill;
if (!shown)
{
picbox.Image = alphaback;
}
else
{
picbox.Image = backImg;
}
picbox.BringToFront();
base.Visible = true;
if (!shown)
{
if (gbackImg != null)
{
gbackImg.Dispose();
}
gbackImg = null;
gbackImg = Graphics.FromImage(alphaback);
gbackImg.SmoothingMode = SmoothingMode.HighQuality;
}
else
{
if (gbackImg != null)
{
gbackImg.Dispose();
}
gbackImg = null;
gbackImg = Graphics.FromImage(backImg);
gbackImg.SmoothingMode = SmoothingMode.HighQuality;
}
isfirst = true;
this.timer1.Start();
}
}