public static void DrawHorizontalThumb (Graphics g, Rectangle bounds, TrackBarThumbState state)
{
if (!IsSupported)
throw new InvalidOperationException ();
VisualStyleRenderer vsr;
switch (state) {
case TrackBarThumbState.Disabled:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Disabled);
break;
case TrackBarThumbState.Hot:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Hot);
break;
case TrackBarThumbState.Normal:
default:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Normal);
break;
case TrackBarThumbState.Pressed:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.Thumb.Pressed);
break;
}
vsr.DrawBackground (g, bounds);
}
/// <summary>
/// Overriden. Raised when mouse down occured.
/// Determine whether the user has clicked a track bar thumb.
/// </summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected override void OnMouseDown(MouseEventArgs e)
{
//if (!TrackBarRenderer.IsSupported)
// return;
if (_duration != 0)
{
if (this._caretThumbBounds.Contains(e.Location) && _showCaret)
{
_caretThumbClicked = true;
_caretThumbState = TrackBarThumbState.Pressed;
}
else if (this._leftThumbBounds.Contains(e.Location))
{
_leftThumbClicked = true;
_leftThumbState = TrackBarThumbState.Pressed;
}
else if (this._rightThumbBounds.Contains(e.Location))
{
_rightThumbClicked = true;
_rightThumbState = TrackBarThumbState.Pressed;
}
this.Invalidate();
}
}
public static Size GetTopPointingThumbSize (Graphics g, TrackBarThumbState state)
{
if (!IsSupported)
throw new InvalidOperationException ();
VisualStyleRenderer vsr;
switch (state) {
case TrackBarThumbState.Disabled:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Disabled);
break;
case TrackBarThumbState.Hot:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Hot);
break;
case TrackBarThumbState.Normal:
default:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Normal);
break;
case TrackBarThumbState.Pressed:
vsr = new VisualStyleRenderer (VisualStyleElement.TrackBar.ThumbTop.Pressed);
break;
}
return vsr.GetPartSize (g, ThemeSizeType.Draw);
}
public static void DrawVerticalThumb(Graphics g, Rectangle bounds, TrackBarThumbState state)
{
InitializeRenderer(VisualStyleElement.TrackBar.ThumbVertical.Normal, (int) state);
visualStyleRenderer.DrawBackground(g, bounds);
}
/// <summary>
///
/// </summary>
public TimeLineMarker()
{
this.state = TrackBarThumbState.Normal;
this.markerColor = Color.Yellow;
}
[SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")] // Using Graphics instead of IDeviceContext intentionally
public static void DrawLeftPointingThumb(Graphics g, Rectangle bounds, TrackBarThumbState state)
{
InitializeRenderer(VisualStyleElement.TrackBar.ThumbLeft.Normal, (int)state);
visualStyleRenderer.DrawBackground(g, bounds);
}
public static Size GetTopPointingThumbSize(Graphics g, TrackBarThumbState state)
{
InitializeRenderer(VisualStyleElement.TrackBar.ThumbTop.Normal, (int) state);
return visualStyleRenderer.GetPartSize(g, ThemeSizeType.True);
}
/// <summary>
/// Overriden. Raised when mouse down occured.
/// Determine whether the user has clicked a track bar thumb.
/// </summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected override void OnMouseDown(MouseEventArgs e)
{
//if (!TrackBarRenderer.IsSupported)
// return;
if (_duration != 0)
{
if (this._caretThumbBounds.Contains(e.Location) && _showCaret)
{
_caretThumbClicked = true;
_caretThumbState = TrackBarThumbState.Pressed;
}
else if (this._leftThumbBounds.Contains(e.Location))
{
_leftThumbClicked = true;
_leftThumbState = TrackBarThumbState.Pressed;
}
else if (this._rightThumbBounds.Contains(e.Location))
{
_rightThumbClicked = true;
_rightThumbState = TrackBarThumbState.Pressed;
}
foreach (TimeLineMarker marker in this.timeLineMarkers)
{
Rectangle bounds = new Rectangle(
GetXCoordinateForPosition(marker.Time / (double)this.Duration) - TimeLineMarker.MARKERWIDTH / 2,
0,
TimeLineMarker.MARKERWIDTH,
this.Height);
if (bounds.Contains(e.Location))
{
marker.State = TrackBarThumbState.Pressed;
this.movingMarkerEventID = marker.EventID;
}
}
this.Invalidate();
}
}
private void DrawThumb(Graphics g, Rectangle bounds, TrackBarThumbState state)
{
s_thumbPoints[0] = bounds.Location;
s_thumbPoints[1] = new Point(bounds.Right, bounds.Top);
s_thumbPoints[2] = new Point(bounds.Right, bounds.Top + bounds.Height * 3 / 4);
s_thumbPoints[3] = new Point((bounds.Left + bounds.Right) / 2, bounds.Top + bounds.Height);
s_thumbPoints[4] = new Point(bounds.Left, bounds.Top + bounds.Height * 3 / 4);
g.DrawPolygon(Theme.SliderTrackPen, s_thumbPoints);
}
protected override void OnMouseDown(MouseEventArgs e)
{
base.OnMouseDown(e);
state = TrackBarThumbState.Pressed;
Refresh();
}
/// <summary>
/// Overriden. Raised when mouse move occured.
/// Track cursor movements.
/// </summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected override void OnMouseMove(MouseEventArgs e)
{
//if (!TrackBarRenderer.IsSupported)
// return;
bool caretMoved = false;
if (_duration != 0)
{
// The user is moving the thumb.
if (_leftThumbClicked == true)
{
if (e.X >= _halfThumbWidth + this.Padding.Left + (int)_timeTextSize.Width &&
e.X < GetXCoordinateForPosition(_rightThumbPosition))
{
_leftThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_leftThumbBounds.X = GetXCoordinateForPosition(_leftThumbPosition) - _halfThumbWidth;
OnSectionStartValueChanged(new PositionValueChangedEventArguments(this.SectionStartTime));
}
//if caret would be out of bounds reposition caret.
if (e.X >= GetXCoordinateForPosition(_caretThumbPosition)
&& e.X <= GetXCoordinateForPosition(_rightThumbPosition))
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = GetXCoordinateForPosition(_caretThumbPosition) - _halfThumbWidth;
caretMoved = true;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
this.Parent.Refresh();
return;
}
// The cursor is passing over the track.
else
{
if (_leftThumbBounds.Contains(e.Location))
{
_leftThumbState = TrackBarThumbState.Hot;
this.Invalidate();
return;
}
else
{
_leftThumbState = TrackBarThumbState.Normal;
}
}
// The user is moving the thumb.
if (_rightThumbClicked == true)
{
if (e.X > GetXCoordinateForPosition(_leftThumbPosition) &&
e.X <= _trackBounds.Width + _halfThumbWidth + this.Padding.Left + (int)_timeTextSize.Width)
{
_rightThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_rightThumbBounds.X = GetXCoordinateForPosition(_rightThumbPosition) - _halfThumbWidth;
OnSectionEndValueChanged(new PositionValueChangedEventArguments(this.SectionEndTime));
}
//if caret would be out of bounds reposition caret.
if (e.X <= GetXCoordinateForPosition(_caretThumbPosition)
&& e.X >= GetXCoordinateForPosition(_leftThumbPosition))
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = GetXCoordinateForPosition(_caretThumbPosition) - _halfThumbWidth;
caretMoved = true;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
this.Parent.Refresh();
return;
}
// The cursor is passing over the track.
else
{
if (_rightThumbBounds.Contains(e.Location))
{
_rightThumbState = TrackBarThumbState.Hot;
this.Invalidate();
return;
}
else
{
_rightThumbState = TrackBarThumbState.Normal;
}
}
// The user is moving the thumb.
if (_caretThumbClicked == true)
{
if (e.X >= GetXCoordinateForPosition(_leftThumbPosition) &&
e.X <= GetXCoordinateForPosition(_rightThumbPosition))
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = GetXCoordinateForPosition(_caretThumbPosition) - _halfThumbWidth;
caretMoved = true;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
this.Parent.Refresh();
return;
}
// The cursor is passing over the track.
else
{
if (_caretThumbBounds.Contains(e.Location))
{
_caretThumbState = TrackBarThumbState.Hot;
this.Invalidate();
return;
}
else
{
_caretThumbState = TrackBarThumbState.Normal;
}
}
foreach (TimeLineMarker marker in this.timeLineMarkers)
{
// The user is moving the marker.
if (marker.State == TrackBarThumbState.Pressed)
{
if (e.X >= GetXCoordinateForPosition(_leftThumbPosition) &&
e.X <= GetXCoordinateForPosition(_rightThumbPosition))
{
marker.Time = (int)(((e.X - TimeLineMarker.MARKERWIDTH / 2 -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width) * this.Duration);
}
}
// The cursor is passing over the track.
else
{
Rectangle bounds = new Rectangle(
GetXCoordinateForPosition(marker.Time / (double)Duration) - TimeLineMarker.MARKERWIDTH / 2,
0,
TimeLineMarker.MARKERWIDTH,
this.Height);
if (bounds.Contains(e.Location))
{
marker.State = TrackBarThumbState.Hot;
}
else
{
marker.State = TrackBarThumbState.Normal;
}
}
}
if (!caretIsMoving && caretMoved)
{
OnCaretMovingStarted(EventArgs.Empty);
caretIsMoving = true;
}
this.Parent.Refresh();
}
}
protected override void OnMouseLeave(EventArgs e)
{
base.OnMouseLeave(e);
state = TrackBarThumbState.Normal;
Refresh();
}
protected override void OnMouseEnter(EventArgs e)
{
base.OnMouseEnter(e);
state = TrackBarThumbState.Hot;
Refresh();
}
// Track cursor movements.
protected override void OnMouseMove(MouseEventArgs e)
{
if (!TrackBarRenderer.IsSupported)
{
return;
}
// The user is moving the thumb.
if (thumbClickedL == true)
{
// Track movements to the next tick to the right, if
// the cursor has moved halfway to the next tick.
/*
* if (currentTickPositionL < numberTicks - 1 &&
* e.Location.X > CurrentTickXCoordinate(currentTickPositionL) + (int)(tickSpace) &&
* currentTickPositionL < currentTickPositionR-1
* )
* {
* currentTickPositionL++;
* }
*
* // Track movements to the next tick to the left, if
* // cursor has moved halfway to the next tick.
* else if (currentTickPositionL > 0 &&
* e.Location.X < CurrentTickXCoordinate(currentTickPositionL) - (int)(tickSpace / 2)
* )
* {
* currentTickPositionL--;
* }
*
*
* thumbRectangleL.X = CurrentTickXCoordinate(currentTickPositionL);
*/
currentTickPositionL = nearPosition(e.Location.X);
if (currentTickPositionL >= currentTickPositionR)
{
currentTickPositionL = currentTickPositionR - 1;
}
thumbRectangleL.X = CurrentTickXCoordinate(currentTickPositionL);
if (ValueChanged != null)
{
ValueChanged(this, new EventArgs());
}
}
else if (thumbClickedR == true)
{
// Track movements to the next tick to the right, if
// the cursor has moved halfway to the next tick.
/*if (currentTickPositionR < numberTicks - 1 &&
* e.Location.X > CurrentTickXCoordinate(currentTickPositionR) + (int)(tickSpace)
* )
* {
* currentTickPositionR++;
* }
*
* // Track movements to the next tick to the left, if
* // cursor has moved halfway to the next tick.
* else if (currentTickPositionR > 0 &&
* e.Location.X < CurrentTickXCoordinate(currentTickPositionR) - (int)(tickSpace / 2) &&
* currentTickPositionL < currentTickPositionR - 1
* )
* {
* currentTickPositionR--;
* }*/
currentTickPositionR = nearPosition(e.Location.X);
if (currentTickPositionL >= currentTickPositionR)
{
currentTickPositionR = currentTickPositionL + 1;
}
thumbRectangleR.X = CurrentTickXCoordinate(currentTickPositionR);
if (ValueChanged != null)
{
ValueChanged(this, new EventArgs());
}
}
// The cursor is passing over the track.
else
{
thumbStateL = thumbRectangleL.Contains(e.Location) ?
TrackBarThumbState.Hot : TrackBarThumbState.Normal;
thumbStateR = thumbRectangleR.Contains(e.Location) ?
TrackBarThumbState.Hot : TrackBarThumbState.Normal;
}
barRectangleC.X = (thumbRectangleL.X + thumbRectangleR.X + thumbRectangleL.Width) / 2;
Invalidate();
}
/// <summary>
/// Overriden. Raised when mouse up occured.
/// Redraw the track bar thumb if the user has moved it.
/// </summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected override void OnMouseUp(MouseEventArgs e)
{
//if (!TrackBarRenderer.IsSupported)
// return;
if (_duration != 0)
{
if (_leftThumbClicked == true)
{
if (e.Location.X > _trackBounds.X &&
e.Location.X < (_trackBounds.X +
_trackBounds.Width - _leftThumbBounds.Width))
{
_leftThumbClicked = false;
_leftThumbState = TrackBarThumbState.Hot;
this.Invalidate();
}
_leftThumbClicked = false;
}
else if (_rightThumbClicked == true)
{
if (e.Location.X > _trackBounds.X &&
e.Location.X < (_trackBounds.X +
_trackBounds.Width - _leftThumbBounds.Width))
{
_rightThumbClicked = false;
_rightThumbState = TrackBarThumbState.Hot;
this.Invalidate();
}
_rightThumbClicked = false;
}
else if (_caretThumbClicked == true)
{
if (e.Location.X > _trackBounds.X &&
e.Location.X < (_trackBounds.X +
_trackBounds.Width - _leftThumbBounds.Width))
{
_caretThumbClicked = false;
_caretThumbState = TrackBarThumbState.Hot;
this.Invalidate();
}
_caretThumbClicked = false;
}
}
}
private void DrawSlider(Graphics g, TrackBarThumbState state)
{
int sliderLocation;
if (ZoomValue < DefaultValue)
{
int regionWidth = Width / 2 - SliderWidth / 2;
float scale = (float)regionWidth / (DefaultValue - MinValue);
sliderLocation = (int)Math.Round(scale * (ZoomValue - MinValue)) + SliderWidth / 2;
}
else
{
int regionWidth = Width / 2 - SliderWidth / 2;
float scale = (float)regionWidth / (MaxValue - DefaultValue);
sliderLocation = (int)Math.Round(scale * (ZoomValue - DefaultValue)) + Width / 2;
}
Image slider;
if (state == TrackBarThumbState.Disabled)
slider = Properties.Resources.DisabledSlider;
else
slider = Properties.Resources.Slider;
int top = Height / 2 - SliderHeight / 2;
int left = sliderLocation - SliderWidth / 2;
g.DrawImage(slider, left, top, SliderWidth, SliderHeight);
}
/// <summary>
/// Overriden. Raised when mouse move occured.
/// Track cursor movements.
/// </summary>
/// <param name="e">A <see cref="MouseEventArgs"/> that contains the event data. </param>
protected override void OnMouseMove(MouseEventArgs e)
{
//if (!TrackBarRenderer.IsSupported)
// return;
if (_duration != 0)
{
// The user is moving the thumb.
if (_leftThumbClicked == true)
{
if (e.X >= _halfThumbWidth + this.Padding.Left + (int)_timeTextSize.Width &&
e.X < CurrentRightThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width)
{
_leftThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_leftThumbBounds.X = CurrentLeftThumbXCoordinate() - _halfThumbWidth +
this.Padding.Left + (int)_timeTextSize.Width;
OnSectionStartValueChanged(new PositionValueChangedEventArguments(this.SectionStartTime));
}
//if caret would be out of bounds reposition caret.
if (e.X >= CurrentCaretThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width
&& e.X <= CurrentRightThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width)
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = CurrentCaretThumbXCoordinate() - _halfThumbWidth +
this.Padding.Left + (int)_timeTextSize.Width;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
}
// The cursor is passing over the track.
else
{
_leftThumbState = _leftThumbBounds.Contains(e.Location) ?
TrackBarThumbState.Hot : TrackBarThumbState.Normal;
}
// The user is moving the thumb.
if (_rightThumbClicked == true)
{
if (e.X > CurrentLeftThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width &&
e.X <= _trackBounds.Width + _halfThumbWidth + this.Padding.Left + (int)_timeTextSize.Width)
{
_rightThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_rightThumbBounds.X = CurrentRightThumbXCoordinate() - _halfThumbWidth +
this.Padding.Left + (int)_timeTextSize.Width;
OnSectionEndValueChanged(new PositionValueChangedEventArguments(this.SectionEndTime));
}
//if caret would be out of bounds reposition caret.
if (e.X <= CurrentCaretThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width
&& e.X >= CurrentLeftThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width)
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = CurrentCaretThumbXCoordinate() - _halfThumbWidth +
this.Padding.Left + (int)_timeTextSize.Width;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
}
// The cursor is passing over the track.
else
{
_rightThumbState = _rightThumbBounds.Contains(e.Location) ?
TrackBarThumbState.Hot : TrackBarThumbState.Normal;
}
// The user is moving the thumb.
if (_caretThumbClicked == true)
{
if (e.X >= CurrentLeftThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width &&
e.X <= CurrentRightThumbXCoordinate() + this.Padding.Left + (int)_timeTextSize.Width)
{
_caretThumbPosition = (e.X - _halfThumbWidth -
this.Padding.Left - (int)_timeTextSize.Width) / (double)_trackBounds.Width;
_caretThumbBounds.X = CurrentCaretThumbXCoordinate() - _halfThumbWidth +
this.Padding.Left + (int)_timeTextSize.Width;
OnCaretValueChanged(new PositionValueChangedEventArguments(this.CurrentTime));
}
}
// The cursor is passing over the track.
else
{
_caretThumbState = _caretThumbBounds.Contains(e.Location) ?
TrackBarThumbState.Hot : TrackBarThumbState.Normal;
}
//Refresh();
//this.Invalidate();
}
}
[SuppressMessage("Microsoft.Design", "CA1011:ConsiderPassingBaseTypesAsParameters")] // Using Graphics instead of IDeviceContext intentionally
public static Size GetBottomPointingThumbSize(Graphics g, TrackBarThumbState state)
{
InitializeRenderer(VisualStyleElement.TrackBar.ThumbBottom.Normal, (int)state);
return(visualStyleRenderer.GetPartSize(g, ThemeSizeType.True));
}
