void UpdateScrollButtonPosition()
{
switch (this.ScrollBarType)
{
default:
case ScrollBarType.Vertical:
{
int thumbPosY = CalculateThumbPosition() + minmax_boxHeight;
scrollButton.SetLocation(0, thumbPosY);
} break;
case ScrollBarType.Horizontal:
{
int thumbPosX = CalculateThumbPosition() + minmax_boxHeight;
scrollButton.SetLocation(thumbPosX, 0);
} break;
}
}
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.Yellow);
max_button.MouseUp += (s, e) => this.StepSmallToMax();
container.AddChild(max_button);
this.maxButton = max_button;
}
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();
};
//-------------------------------------------
//4.
scroll_button.MouseLeave += (s, e) =>
{
if (e.IsDragging)
{
Point pos = scroll_button.Position;
//if vscroll bar then move only y axis
int newXPos = (int)(pos.X + e.XDiff);
//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 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();
};
//-------------------------------------------
//4.
scroll_button.MouseLeave += (s, e) =>
{
if (e.IsDragging)
{
Point pos = scroll_button.Position;
//if vscroll bar then move only y axis
int newXPos = (int)(pos.X + e.XDiff);
//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 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.Yellow);
max_button.MouseUp += (s, e) => this.StepSmallToMax();
container.AddChild(max_button);
this.maxButton = max_button;
}