public override void paintText(ref Graphics graphics, ref Bitmap bitmap)
{
Rectangle rcText = mRectItem;
int newLeft = rcText.Left + mTextPadding.Left;
int newRight = rcText.Right - mTextPadding.Right;
int newTop = rcText.Top + mTextPadding.Top;
int newBottom = rcText.Bottom - mTextPadding.Bottom;
rcText.X = newLeft;
rcText.Width = newRight - newLeft;
rcText.Y = newTop;
rcText.Height = newBottom - newTop;
if (mCurSel >= 0)
{
ControlUI pControl = (ControlUI)mItems[mCurSel];
IListItemUI pElement = (IListItemUI)pControl.getInterface("ListItem");
if (pElement != null)
{
pElement.drawItemText(ref graphics, ref bitmap, ref rcText);
}
else
{
Rectangle rcOldPos = pControl.getPos();
pControl.setPos(rcText);
pControl.doPaint(ref graphics, ref bitmap, rcText);
pControl.setPos(rcOldPos);
}
}
}
public override bool remove(ControlUI pControl)
{
int iIndex = getItemIndex(pControl);
if (iIndex == -1)
{
return(false);
}
if (!base.removeAt(iIndex))
{
return(false);
}
for (int i = iIndex; i < getCount(); ++i)
{
ControlUI p = getItemAt(i);
IListItemUI pListItem = (IListItemUI)p.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() - 1);
}
}
selectItem(findSelectable(mCurSel, false));
return(true);
}
public override bool addAt(ControlUI pControl, int iIndex)
{
if (!base.addAt(pControl, iIndex))
{
return(false);
}
// 所有的列表项目都是我们指定的
IListItemUI pListItem = (IListItemUI)pControl.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setOwner(this);
pListItem.setIndex(iIndex);
}
for (int i = iIndex + 1; i < getCount(); ++i)
{
ControlUI p = getItemAt(i);
pListItem = (IListItemUI)p.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() + 1);
}
}
return(true);
}
public override bool add(ControlUI pControl)
{
IListItemUI pListItem = (IListItemUI)pControl.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setOwner(this);
pListItem.setIndex(mItems.Count);
}
return(base.add(pControl));
}
public override bool setItemIndex(ControlUI pControl, int iIndex)
{
if (pControl.getInterface("ListHeader") != null)
{
return(base.setItemIndex(pControl, iIndex));
}
// We also need to recognize header sub-items
if (pControl.getClass() == "ListHeaderItemUI")
{
return(mHeader.setItemIndex(pControl, iIndex));
}
int iOrginIndex = mList.getItemIndex(pControl);
if (iOrginIndex == -1)
{
return(false);
}
if (!mList.setItemIndex(pControl, iIndex))
{
return(false);
}
// The list items should know about us
IListItemUI pListItem = (IListItemUI)pControl.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(getCount());
}
for (int i = iOrginIndex; i < mList.getCount(); ++i)
{
ControlUI p = mList.getItemAt(i);
pListItem = (IListItemUI)(p.getInterface("ListItem"));
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() - 1);
}
}
selectItem(findSelectable(mCurSel, false));
ensureVisible(mCurSel);
return(true);
}
public virtual bool expandItem(int iIndex, bool bExpand = true)
{
if (!mListInfo.mExpandable)
{
return(false);
}
if (mExpandedItem >= 0 && !mListInfo.mMultiExpandable)
{
ControlUI pControl = getItemAt(mExpandedItem);
if (pControl != null)
{
IListItemUI pItem = (IListItemUI)pControl.getInterface("ListItem");
if (pItem != null)
{
pItem.expand(false);
}
}
mExpandedItem = -1;
}
if (bExpand)
{
ControlUI pControl = getItemAt(iIndex);
if (pControl == null)
{
return(false);
}
if (!pControl.isVisible())
{
return(false);
}
IListItemUI pItem = (IListItemUI)pControl.getInterface("ListItem");
if (pItem == null)
{
return(false);
}
mExpandedItem = iIndex;
if (!pItem.expand(true))
{
mExpandedItem = -1;
return(false);
}
}
needUpdate();
return(true);
}
public override bool addAt(ControlUI pControl, int iIndex)
{
// Override the AddAt() method so we can add items specifically to
// the intended widgets. Headers and are assumed to be
// answer the correct interface so we can add multiple list headers.
if (pControl.getInterface("ListHeader") != null)
{
return(base.addAt(pControl, iIndex));
}
// We also need to recognize header sub-items
if (pControl.getClass() == "ListHeaderItemUI")
{
return(mHeader.addAt(pControl, iIndex));
}
if (!mList.addAt(pControl, iIndex))
{
return(false);
}
// The list items should know about us
IListItemUI pListItem = (IListItemUI)pControl.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setOwner(this);
pListItem.setIndex(iIndex);
}
for (int i = iIndex + 1; i < mList.getCount(); ++i)
{
ControlUI p = mList.getItemAt(i);
pListItem = (IListItemUI)p.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() + 1);
}
}
return(true);
}
public override bool removeAt(int iIndex)
{
if (!mList.removeAt(iIndex))
{
return(false);
}
for (int i = iIndex; i < mList.getCount(); ++i)
{
ControlUI p = mList.getItemAt(i);
IListItemUI pListItem = (IListItemUI)p.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() - 1);
}
}
selectItem(findSelectable(mCurSel, false));
ensureVisible(mCurSel);
return(true);
}
public override bool remove(ControlUI pControl)
{
if (pControl.getInterface("ListHeader") != null)
{
return(base.remove(pControl));
}
// We also need to recognize header sub-items
if (pControl.getClass() == "ListHeaderItemUI")
{
return(mHeader.remove(pControl));
}
int iIndex = mList.getItemIndex(pControl);
if (iIndex == -1)
{
return(false);
}
if (!mList.removeAt(iIndex))
{
return(false);
}
for (int i = iIndex; i < mList.getCount(); ++i)
{
ControlUI p = mList.getItemAt(i);
IListItemUI pListItem = (IListItemUI)p.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setIndex(pListItem.getIndex() - 1);
}
}
selectItem(findSelectable(mCurSel, false));
ensureVisible(mCurSel);
return(true);
}
public override bool add(ControlUI pControl)
{
// Override the Add() method so we can add items specifically to
// the intended widgets. Headers are assumed to be
// answer the correct interface so we can add multiple list headers.
if (pControl.getInterface("ListHeader") != null)
{
if (mHeader != pControl && mHeader.getCount() == 0)
{
{
// 把旧的表头控件属性赋予到新的表头控件
pControl.setBackImage(mHeader.getBackImage());
pControl.setVisible(mHeader.isVisible());
}
base.remove(mHeader);
mHeader = null;
mHeader = (ListHeaderUI)(pControl);
}
return(base.addAt(pControl, 0));
}
// We also need to recognize header sub-items
if (pControl.getClass() == "ListHeaderItemUI")
{
return(mHeader.add(pControl));
}
// The list items should know about us
IListItemUI pListItem = (IListItemUI)pControl.getInterface("ListItem");
if (pListItem != null)
{
pListItem.setOwner(this);
pListItem.setIndex(getCount());
}
return(mList.add(pControl));
}
