/// <summary>
/// Sets the value of the scroll range properties (see <see cref="ScrollMinX" />,
/// <see cref="ScrollMaxX" />, <see cref="YScrollRangeList" />, and
/// <see cref="Y2ScrollRangeList" /> based on the actual range of the data for
/// each corresponding <see cref="Axis" />.
/// </summary>
/// <remarks>
/// This method is called automatically by <see cref="AxisChange" /> if
/// <see cref="IsAutoScrollRange" />
/// is true. Note that this will not be called if you call AxisChange directly from the
/// <see cref="GraphPane" />. For example, zedGraphControl1.AxisChange() works properly, but
/// zedGraphControl1.GraphPane.AxisChange() does not.
/// </remarks>
public void SetScrollRangeFromData()
{
if (GraphPane == null)
{
return;
}
var grace = CalcScrollGrace(GraphPane.XAxis.Scale._rangeMin,
GraphPane.XAxis.Scale._rangeMax);
_xScrollRange.Min = GraphPane.XAxis.Scale._rangeMin - grace;
_xScrollRange.Max = GraphPane.XAxis.Scale._rangeMax + grace;
_xScrollRange.IsScrollable = true;
for (var i = 0; i < GraphPane.YAxisList.Count; i++)
{
Axis axis = GraphPane.YAxisList[i];
grace = CalcScrollGrace(axis.Scale._rangeMin, axis.Scale._rangeMax);
var range = new ScrollRange(axis.Scale._rangeMin - grace,
axis.Scale._rangeMax + grace,
YScrollRangeList[i].IsScrollable);
if (i >= YScrollRangeList.Count)
{
YScrollRangeList.Add(range);
}
else
{
YScrollRangeList[i] = range;
}
}
for (var i = 0; i < GraphPane.Y2AxisList.Count; i++)
{
Axis axis = GraphPane.Y2AxisList[i];
grace = CalcScrollGrace(axis.Scale._rangeMin, axis.Scale._rangeMax);
var range = new ScrollRange(axis.Scale._rangeMin - grace,
axis.Scale._rangeMax + grace,
Y2ScrollRangeList[i].IsScrollable);
if (i >= Y2ScrollRangeList.Count)
{
Y2ScrollRangeList.Add(range);
}
else
{
Y2ScrollRangeList[i] = range;
}
}
//this.GraphPane.CurveList.GetRange( out scrollMinX, out scrollMaxX,
// out scrollMinY, out scrollMaxY, out scrollMinY2, out scrollMaxY2, false, false,
// this.GraphPane );
}
/// <summary>
/// Default Constructor
/// </summary>
public ZedGraphControl()
{
InitializeComponent();
InitializeComponentPartial();
this._tooltip = ValuesToolTip.Create(this, this.pointToolTip);
// These commands do nothing, but they get rid of the compiler warnings for
// unused events
bool b = MouseDown == null || MouseUp == null || MouseMove == null;
// Link in these events from the base class, since we disable them from this class.
base.MouseDown += ZedGraphControl_MouseDown;
base.MouseUp += ZedGraphControl_MouseUp;
base.MouseMove += ZedGraphControl_MouseMove;
//this.MouseWheel += new System.Windows.Forms.MouseEventHandler( this.ZedGraphControl_MouseWheel );
// Use double-buffering for flicker-free updating:
SetStyle(ControlStyles.UserPaint
| ControlStyles.AllPaintingInWmPaint
| ControlStyles.DoubleBuffer
| ControlStyles.ResizeRedraw, true);
//isTransparentBackground = false;
//SetStyle( ControlStyles.Opaque, false );
SetStyle(ControlStyles.SupportsTransparentBackColor, true);
//this.BackColor = Color.Transparent;
Rectangle rect = new Rectangle(0, 0, this.Size.Width, this.Size.Height);
_masterPane = new MasterPane("", rect);
_masterPane.Margin.All = 0;
_masterPane.Title.IsVisible = false;
string titleStr = ZedGraphLocale.title_def;
string xStr = ZedGraphLocale.x_title_def;
string yStr = ZedGraphLocale.y_title_def;
//GraphPane graphPane = new GraphPane( rect, "Title", "X Axis", "Y Axis" );
GraphPane graphPane = new GraphPane(rect, titleStr, xStr, yStr);
using (Graphics g = this.CreateGraphics())
{
graphPane.AxisChange(g);
//g.Dispose();
}
_masterPane.Add(graphPane);
this.hScrollBar1.Minimum = 0;
this.hScrollBar1.Maximum = 100;
this.hScrollBar1.Value = 0;
this.vScrollBar1.Minimum = 0;
this.vScrollBar1.Maximum = 100;
this.vScrollBar1.Value = 0;
_xScrollRange = new ScrollRange(true);
YScrollRangeList.Add(new ScrollRange(true));
Y2ScrollRangeList.Add(new ScrollRange(false));
_zoomState = null;
_zoomStateStack = new ZoomStateStack();
_graphDragState = new GraphDragState();
CrossHairFontSpec = new FontSpec
{
FontColor = Color.Black,
Size = 9,
Border = { IsVisible = true },
Fill = { Color = Color.Beige, Brush = new SolidBrush(Color.Beige) },
TextBrush = new SolidBrush(Color.Black)
};
}
