protected void UpdateScrollBars() {
int old_max, old_page_size;
if (HaveVerticalScrollbar) {
if (ScrollbarsVisible) FVerticalScrollbar.Show();
else FVerticalScrollbar.Hide();
if (VScrollBarIsRight)
FVerticalScrollbar.SetX(ClientRect.x + ClientRect.w - FVerticalScrollbar.Width());
else FVerticalScrollbar.SetX(ClientRect.x);
FVerticalScrollbar.SetY(ClientRect.y);
old_max = FVerticalScrollbar.Max;
old_page_size = FVerticalScrollbar.PageSize;
FVerticalScrollbar.Min = 0;
FVerticalScrollbar.Max = FullHeight;
if (HaveHorizontalScrollbar) {
FVerticalScrollbar.SetHeight(ClientRect.h - FHorizontalScrollbar.Height());
} else {
FVerticalScrollbar.SetHeight(ClientRect.h);
}
FVerticalScrollbar.PageSize = FVerticalScrollbar.Height();
if (AutoScrollV)
if (FVerticalScrollbar.Pos + old_page_size >= old_max)
FVerticalScrollbar.SetPos(FVerticalScrollbar.Max - FVerticalScrollbar.PageSize);
}
if (HaveHorizontalScrollbar) {
if (ScrollbarsVisible) FHorizontalScrollbar.Show();
else FHorizontalScrollbar.Hide();
FHorizontalScrollbar.SetX(ClientRect.x);
if (HScrollBarIsBottom)
FHorizontalScrollbar.SetY(ClientRect.y + ClientRect.h - FHorizontalScrollbar.Height());
else FHorizontalScrollbar.SetY(ClientRect.y);
old_max = FHorizontalScrollbar.Max;
old_page_size = FHorizontalScrollbar.PageSize;
FHorizontalScrollbar.Min = 0;
FHorizontalScrollbar.Max = FullWidth;
if (HaveVerticalScrollbar) {
FHorizontalScrollbar.SetWidth(ClientRect.w - FVerticalScrollbar.Width());
} else {
FHorizontalScrollbar.SetWidth(ClientRect.w);
}
FHorizontalScrollbar.PageSize = FHorizontalScrollbar.Width();
if (AutoScrollH)
if (FHorizontalScrollbar.Pos + old_page_size >= old_max)
FHorizontalScrollbar.SetPos(FHorizontalScrollbar.Max - FHorizontalScrollbar.PageSize);
}
}
protected IntCoord WorkRect() { // HaveVerticalScrollbar
int x, y, w, h;
if (HaveVerticalScrollbar) {
y = FVerticalScrollbar.Pos;
if (HaveHorizontalScrollbar) h = ClientRect.h - FHorizontalScrollbar.Height();
else h = ClientRect.h;
} else {
y = 0;
if (HaveHorizontalScrollbar) h = ClientRect.h - FHorizontalScrollbar.Height();
else h = ClientRect.h;
}
if (HaveHorizontalScrollbar) {
x = FHorizontalScrollbar.Pos;
if (HaveVerticalScrollbar) w = ClientRect.w - FVerticalScrollbar.Width();
else w = ClientRect.w;
} else {
x = 0;
if (HaveVerticalScrollbar) w = ClientRect.w - FVerticalScrollbar.Width();
else w = ClientRect.w;
}
return new IntCoord(x, y, w, h);
}
public int GetHorizScrollHeight() {
if (HaveHorizontalScrollbar) return FHorizontalScrollbar.Height();
else return 0;
}
