void SetupHorizontalScrollButtonProperties(RenderElement container)
{
var scroll_button = new ScrollBarButton(10, this.Height, this); //create with default value
scroll_button.BackColor = KnownColors.FromKnownColor(KnownColor.DarkBlue);
int thumbPosX = CalculateThumbPosition() + minmax_boxHeight;
scroll_button.SetLocation(thumbPosX, 0);
container.AddChild(scroll_button);
this.scrollButton = scroll_button;
//----------------------------
EvaluateHorizontalScrollBarProperties();
//----------------------------
//3. drag
scroll_button.MouseDrag += (s, e) =>
{
//dragging ...
//find x-diff
Point pos = scroll_button.Position;
//if vscroll bar then move only y axis
int newXPos = (int)(pos.X + e.DiffCapturedX);
//clamp!
if (newXPos >= this.Width - (minmax_boxHeight + scrollButton.Width))
{
newXPos = this.Width - (minmax_boxHeight + scrollButton.Width);
}
else if (newXPos < minmax_boxHeight)
{
newXPos = minmax_boxHeight;
}
//calculate value from position
int currentMarkAt = (newXPos - minmax_boxHeight);
this.scrollValue = (float)(onePixelFor * currentMarkAt);
newXPos = CalculateThumbPosition() + minmax_boxHeight;
scroll_button.SetLocation(newXPos, pos.Y);
if (this.UserScroll != null)
{
this.UserScroll(this, EventArgs.Empty);
}
e.StopPropagation();
};
}
void SetupMinButtonProperties(RenderElement container)
{
ScrollBarButton min_button;
if (this.ScrollBarType == ScrollBarType.Horizontal)
{
min_button = new ScrollBarButton(minmax_boxHeight, this.Height, this);
}
else
{
min_button = new ScrollBarButton(this.Width, minmax_boxHeight, this);
}
min_button.BackColor = KnownColors.FromKnownColor(KnownColor.DarkGray);
min_button.MouseUp += (s, e) => this.StepSmallToMin();
container.AddChild(min_button);
this.minButton = min_button;
}
void SetupVerticalScrollButtonProperties(RenderElement container)
{
var scroll_button = new ScrollBarButton(this.Width, 10, this); //create with default value
scroll_button.BackColor = KnownColors.FromKnownColor(KnownColor.DarkBlue);
int thumbPosY = CalculateThumbPosition() + _minmax_boxHeight;
scroll_button.SetLocation(0, thumbPosY);
container.AddChild(scroll_button);
_scrollButton = scroll_button;
//----------------------------
EvaluateVerticalScrollBarProperties();
//----------------------------
//3. drag
scroll_button.MouseDrag += (s, e) =>
{
//dragging ...
Point pos = scroll_button.Position;
//if vscroll bar then move only y axis
int newYPos = (int)(pos.Y + e.DiffCapturedY);
//clamp!
if (newYPos >= this.Height - (_minmax_boxHeight + _scrollButton.Height))
{
newYPos = this.Height - (_minmax_boxHeight + _scrollButton.Height);
}
else if (newYPos < _minmax_boxHeight)
{
newYPos = _minmax_boxHeight;
}
//calculate value from position
int currentMarkAt = (newYPos - _minmax_boxHeight);
_scrollValue = (float)(_onePixelFor * currentMarkAt);
newYPos = CalculateThumbPosition() + _minmax_boxHeight;
scroll_button.SetLocation(pos.X, newYPos);
if (this.UserScroll != null)
{
this.UserScroll(this, EventArgs.Empty);
}
e.StopPropagation();
};
}
void SetupMaxButtonProperties(RenderElement container)
{
ScrollBarButton max_button;
if (this.ScrollBarType == ScrollBarType.Horizontal)
{
max_button = new ScrollBarButton(_minmax_boxHeight, this.Height, this);
max_button.SetLocation(this.Width - _minmax_boxHeight, 0);
}
else
{
max_button = new ScrollBarButton(this.Width, _minmax_boxHeight, this);
max_button.SetLocation(0, this.Height - _minmax_boxHeight);
}
max_button.BackColor = KnownColors.FromKnownColor(KnownColor.DarkGray);
max_button.MouseUp += (s, e) => this.StepSmallToMax();
container.AddChild(max_button);
_maxButton = max_button;
}