private void Prop_PropChanged(object sender, EventArgs e)
{
int total = max - min;
int pot = orientation == Orientation.Horizontal ? prop.HorizPot : prop.VertPot;
value = PropGadget.FindScrollerTop(total, visibleAmount, pot);
}
private void AdjustProp()
{
int total = max - min;
PropGadget.FindScrollerValues(total, visibleAmount, value, overlap, out int body, out int pot);
prop.ModifyProp(prop.FreeHoriz, prop.FreeVert, pot, pot, body, body);
}
public ScrollbarGadget(Gadget parent, Orientation orientation = Orientation.Horizontal)
: base(parent)
{
arrowPlace = ArrowPlace.RightBottom;
overlap = 1;
increment = 1;
this.orientation = orientation;
bool vert = orientation == Orientation.Vertical;
prop = new PropGadget(this)
{
FreeHoriz = !vert,
FreeVert = vert,
Borderless = true
};
prop.PropChanged += Prop_PropChanged;
arrowInc = new ButtonGadget(this, vert ? theme.ArrowDown : theme.ArrowRight)
{
Width = 20,
Height = 20,
Repeat = true,
Borderless = false
};
arrowInc.GadgetUp += ArrowInc_GadgetUp;
arrowDec = new ButtonGadget(this, vert ? theme.ArrowUp : theme.ArrowLeft)
{
Height = 20,
Width = 20,
Repeat = true,
Borderless = false
};
arrowDec.GadgetUp += ArrowDec_GadgetUp;
}
public void RenderGadget(IGraphics gfx, PropGadget gadget)
{
var frame = gadget.Bounds;
if (!gadget.TransparentBackground)
{
FillBox(gfx, frame, WindowBackPen);
}
if (!gadget.Borderless)
{
gfx.DrawRectangle(frame.X, frame.Y, frame.Width, frame.Height, ShadowPen);
}
var knob = gadget.Knob;
FillBox(gfx, knob, gadget.DrawSelected ? GadgetSelectedPen : gadget.Hover?GadgetHoverPen: GadgetBackPen);
DrawBox(gfx, knob, gadget.DrawSelected ? ShadowPen : ShinePen, gadget.MouseSelected ? ShinePen : ShadowPen);
}