public void recalcDoubleBuffer()
{
offScreenBmp = null;
offScreenDC = null;
offG = null;
Invalidate();
}
public override void render(xGraphics g)
{
if (mType == PICTURE_TYPE_NORMAL)
{
if (mImage != null)
{
g.drawImage(mImage, 0, 0);
}
else if (mImageList != null)
{
g.drawImage(mImageList.Images[mImgIndex], 0, 0);
}
}
else
{
g.drawImage(mImage, 0, 0);
}
}
protected override void OnPaint(PaintEventArgs e)
{
base.OnPaint(e);
if (mBaseControl != null)
{
if (mGraphics == null)
{
mGraphics = new xGraphics();
}
mGraphics.setGraphics(e.Graphics);
if (mDoubleBuffer)
{
mGraphics.getGraphics().DrawImage(offScreenBmp, 0, 0);
}
else
{
mBaseControl.render(mGraphics);
}
}
}
private void listView1_DrawSubItem(object sender, DrawListViewSubItemEventArgs e)
{
if (e.ColumnIndex == _customDrawIndex)
{
e.Graphics.Clear(Color.Red);
ListViewItem.ListViewSubItem subItem = e.SubItem;
Rectangle rc = subItem.Bounds;
if (_cellGraphic == null)
{
_cellGraphic = new xGraphics();
}
_cellGraphic.setGraphics(e.Graphics);
_drawCellDelegate.Invoke(e.ItemIndex, _cellGraphic, rc);
}
else
{
e.DrawText();
}
}
protected override void OnPaintBackground(PaintEventArgs pevent)
{
// ThuyPS: avoiding flickering technique
if (mBaseControl != null && mDoubleBuffer)
{
if (offScreenBmp == null)
{
offScreenBmp = new Bitmap(mBaseControl.getW(), mBaseControl.getH());
offScreenDC = Graphics.FromImage(offScreenBmp);
offG = new xGraphics();
offG.setGraphics(offScreenDC);
}
// background
offG.getGraphics().Clear(this.BackColor);
// render
mBaseControl.render(offG);
}
else
{
base.OnPaintBackground(pevent);
}
}
public override void render(xGraphics g)
{
g.setColor(mColor);
g.fillRect(0, 0, getW(), getH());
}
virtual public void render(xGraphics g)
{
}
