public TickEnumerator GetTickEnumerator(double minTickStep)
{
TickEnumerator e = CreateTickEnumerator(minTickStep);
e.axis = this;
return(e);
}
public TickEnumerator GetTickEnumerator(double minTickStep)
{
TickEnumerator e = CreateTickEnumerator(minTickStep);
if (e != null)
{
e.axis = this;
}
return(e);
}
void DrawCursorLabel(Context ctx, ChartCursor cursor)
{
ctx.SetColor(cursor.Color);
int x, y;
GetPoint(cursor.Value, cursor.Value, out x, out y);
if (cursor.Dimension == AxisDimension.X)
{
string text;
if (cursor.LabelAxis != null)
{
double minStep = GetMinTickStep(cursor.Dimension);
TickEnumerator tenum = cursor.LabelAxis.GetTickEnumerator(minStep);
tenum.Init(cursor.Value);
text = tenum.CurrentLabel;
}
else
{
text = GetValueLabel(cursor.Dimension, cursor.Value);
}
if (text != null && text.Length > 0)
{
TextLayout layout = new TextLayout(ctx);
layout.Font = chartFont;
layout.Text = text;
Size ts = layout.GetSize();
double tl = x - ts.Width / 2;
double tt = top + 4;
if (tl + ts.Width + 2 >= left + width)
{
tl = left + width - ts.Width - 1;
}
if (tl < left + 1)
{
tl = left + 1;
}
ctx.SetColor(Colors.White);
ctx.Rectangle(tl - 1, tt - 1, ts.Width + 2, ts.Height + 2);
ctx.Fill();
ctx.Rectangle(tl - 2, tt - 2, ts.Width + 3, ts.Height + 3);
ctx.SetColor(Colors.Black);
ctx.DrawTextLayout(layout, tl, tt);
}
}
else
{
throw new NotSupportedException();
}
}
void DrawCursorLabel(ChartCursor cursor)
{
using (Gdk.GC gc = new Gdk.GC(GdkWindow)) {
gc.RgbFgColor = cursor.Color;
int x, y;
GetPoint(cursor.Value, cursor.Value, out x, out y);
if (cursor.Dimension == AxisDimension.X)
{
string text;
if (cursor.LabelAxis != null)
{
double minStep = GetMinTickStep(cursor.Dimension);
TickEnumerator tenum = cursor.LabelAxis.GetTickEnumerator(minStep);
tenum.Init(cursor.Value);
text = tenum.CurrentLabel;
}
else
{
text = GetValueLabel(cursor.Dimension, cursor.Value);
}
if (text != null && text.Length > 0)
{
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = IdeServices.FontService.SansFont.CopyModified(Ide.Gui.Styles.FontScale11);
layout.SetMarkup(text);
int tw, th;
layout.GetPixelSize(out tw, out th);
int tl = x - tw / 2;
int tt = top + 4;
if (tl + tw + 2 >= left + width)
{
tl = left + width - tw - 1;
}
if (tl < left + 1)
{
tl = left + 1;
}
GdkWindow.DrawRectangle(Style.WhiteGC, true, tl - 1, tt - 1, tw + 2, th + 2);
GdkWindow.DrawRectangle(Style.BlackGC, false, tl - 2, tt - 2, tw + 3, th + 3);
GdkWindow.DrawLayout(gc, tl, tt, layout);
layout.Dispose();
}
}
else
{
throw new NotSupportedException();
}
}
}
int MeasureTicksSize(TickEnumerator e, AxisDimension ad)
{
int max = 0;
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = IdeServices.FontService.SansFont.CopyModified(Ide.Gui.Styles.FontScale11);
double start = GetStart(ad);
double end = GetEnd(ad);
e.Init(GetOrigin(ad));
while (e.CurrentValue > start)
{
e.MovePrevious();
}
for ( ; e.CurrentValue <= end; e.MoveNext())
{
int tw = 0, th = 0;
layout.SetMarkup(e.CurrentLabel);
layout.GetPixelSize(out tw, out th);
if (ad == AxisDimension.X)
{
if (th > max)
{
max = th;
}
}
else
{
if (tw > max)
{
max = tw;
}
}
}
layout.Dispose();
return(max);
}
int MeasureTicksSize(TickEnumerator e, AxisDimension ad)
{
int max = 0;
Pango.Layout layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = Pango.FontDescription.FromString("Tahoma 8");
double start = GetStart(ad);
double end = GetEnd(ad);
e.Init(GetOrigin(ad));
while (e.CurrentValue > start)
{
e.MovePrevious();
}
for ( ; e.CurrentValue <= end; e.MoveNext())
{
int tw = 0, th = 0;
layout.SetMarkup(e.CurrentLabel);
layout.GetPixelSize(out tw, out th);
if (ad == AxisDimension.X)
{
if (th > max)
{
max = th;
}
}
else
{
if (tw > max)
{
max = tw;
}
}
}
return(max);
}
int MeasureAxisSize(Axis ax)
{
double minStep = GetMinTickStep(ax.Dimension);
TickEnumerator enumSmall = ax.GetTickEnumerator(minStep);
if (enumSmall == null)
{
return(0);
}
TickEnumerator enumBig = ax.GetTickEnumerator(minStep * 2);
if (enumBig == null)
{
return(MeasureTicksSize(enumSmall, ax.Dimension));
}
else
{
return(MeasureTicksSize(enumBig, ax.Dimension));
}
}
double MeasureTicksSize(Context ctx, TickEnumerator e, AxisDimension ad)
{
double max = 0;
TextLayout layout = new TextLayout(ctx);
layout.Font = chartFont;
double start = GetStart(ad);
double end = GetEnd(ad);
e.Init(GetOrigin(ad));
while (e.CurrentValue > start)
{
e.MovePrevious();
}
for ( ; e.CurrentValue <= end; e.MoveNext())
{
layout.Text = e.CurrentLabel;
Size ts = layout.GetSize();
if (ad == AxisDimension.X)
{
if (ts.Height > max)
{
max = ts.Height;
}
}
else
{
if (ts.Width > max)
{
max = ts.Width;
}
}
}
return(max);
}
void DrawAxis(Gdk.Window win, Gdk.GC gc, Axis ax)
{
double minStep = GetMinTickStep(ax.Dimension);
TickEnumerator enumSmall = ax.GetTickEnumerator(minStep);
if (enumSmall == null)
{
return;
}
TickEnumerator enumBig = ax.GetTickEnumerator(minStep * 2);
if (enumBig == null)
{
DrawTicks(win, gc, enumSmall, ax.Position, ax.Dimension, ax.TickSize, ax.ShowLabels);
}
else
{
DrawTicks(win, gc, enumSmall, ax.Position, ax.Dimension, ax.TickSize / 2, false);
DrawTicks(win, gc, enumBig, ax.Position, ax.Dimension, ax.TickSize, ax.ShowLabels);
}
}
void DrawAxis(Context ctx, Axis ax)
{
ctx.SetLineWidth(1);
double minStep = GetMinTickStep(ax.Dimension);
TickEnumerator enumSmall = ax.GetTickEnumerator(minStep);
if (enumSmall == null)
{
return;
}
TickEnumerator enumBig = ax.GetTickEnumerator(minStep * 2);
if (enumBig == null)
{
DrawTicks(ctx, enumSmall, ax.Position, ax.Dimension, ax.TickSize, ax.ShowLabels);
}
else
{
DrawTicks(ctx, enumSmall, ax.Position, ax.Dimension, ax.TickSize / 2, false);
DrawTicks(ctx, enumBig, ax.Position, ax.Dimension, ax.TickSize, ax.ShowLabels);
}
}
void DrawTicks(Gdk.Window win, Gdk.GC gc, TickEnumerator e, AxisPosition pos, AxisDimension ad, int tickSize, bool showLabels)
{
int rwidth, rheight;
win.GetSize(out rwidth, out rheight);
Pango.Layout layout = null;
if (showLabels)
{
layout = new Pango.Layout(this.PangoContext);
layout.FontDescription = Pango.FontDescription.FromString("Tahoma 8");
}
bool isX = pos == AxisPosition.Top || pos == AxisPosition.Bottom;
bool isTop = pos == AxisPosition.Top || pos == AxisPosition.Right;
double start = GetStart(ad);
double end = GetEnd(ad);
e.Init(GetOrigin(ad));
while (e.CurrentValue > start)
{
e.MovePrevious();
}
int lastPosLabel;
int lastPos;
int lastTw = 0;
if (isX)
{
lastPosLabel = reverseXAxis ? left + width + MinLabelGapX : left - MinLabelGapX;
lastPos = left - minTickStep * 2;
}
else
{
lastPosLabel = reverseYAxis ? top - MinLabelGapY : rheight + MinLabelGapY;
lastPos = top + height + minTickStep * 2;
}
for ( ; e.CurrentValue <= end; e.MoveNext())
{
int px, py;
int tw = 0, th = 0;
int tick = tickSize;
GetPoint(e.CurrentValue, e.CurrentValue, out px, out py);
if (showLabels)
{
layout.SetMarkup(e.CurrentLabel);
layout.GetPixelSize(out tw, out th);
}
if (isX)
{
if (Math.Abs((long)px - (long)lastPos) < minTickStep || px < left || px > left + width)
{
continue;
}
lastPos = px;
bool labelFits = false;
if ((Math.Abs(px - lastPosLabel) - (tw / 2) - (lastTw / 2)) >= MinLabelGapX)
{
lastPosLabel = px;
lastTw = tw;
labelFits = true;
}
if (isTop)
{
if (showLabels)
{
if (labelFits)
{
win.DrawLayout(gc, px - (tw / 2), top - AreaBorderWidth - th, layout);
}
else
{
tick = tick / 2;
}
}
win.DrawLine(gc, px, top, px, top + tick);
}
else
{
if (showLabels)
{
if (labelFits)
{
win.DrawLayout(gc, px - (tw / 2), top + height + AreaBorderWidth, layout);
}
else
{
tick = tick / 2;
}
}
win.DrawLine(gc, px, top + height, px, top + height - tick);
}
}
else
{
if (Math.Abs((long)lastPos - (long)py) < minTickStep || py < top || py > top + height)
{
continue;
}
lastPos = py;
bool labelFits = false;
if ((Math.Abs(py - lastPosLabel) - (th / 2) - (lastTw / 2)) >= MinLabelGapY)
{
lastPosLabel = py;
lastTw = th;
labelFits = true;
}
if (isTop)
{
if (showLabels)
{
if (labelFits)
{
win.DrawLayout(gc, left + width + AreaBorderWidth + 1, py - (th / 2), layout);
}
else
{
tick = tick / 2;
}
}
win.DrawLine(gc, left + width, py, left + width - tick, py);
}
else
{
if (showLabels)
{
if (labelFits)
{
win.DrawLayout(gc, left - AreaBorderWidth - tw - 1, py - (th / 2), layout);
}
else
{
tick = tick / 2;
}
}
win.DrawLine(gc, left, py, left + tick, py);
}
}
}
}
int MeasureTicksSize(TickEnumerator e, AxisDimension ad)
{
int max = 0;
Pango.Layout layout = new Pango.Layout (this.PangoContext);
layout.FontDescription = Pango.FontDescription.FromString ("Tahoma 8");
double start = GetStart (ad);
double end = GetEnd (ad);
e.Init (GetOrigin (ad));
while (e.CurrentValue > start)
e.MovePrevious ();
for ( ; e.CurrentValue <= end; e.MoveNext ())
{
int tw = 0, th = 0;
layout.SetMarkup (e.CurrentLabel);
layout.GetPixelSize (out tw, out th);
if (ad == AxisDimension.X) {
if (th > max)
max = th;
} else {
if (tw > max)
max = tw;
}
}
return max;
}
void DrawTicks(Gdk.Window win, Gdk.GC gc, TickEnumerator e, AxisPosition pos, AxisDimension ad, int tickSize, bool showLabels)
{
int rwidth, rheight;
win.GetSize (out rwidth, out rheight);
Pango.Layout layout = null;
if (showLabels) {
layout = new Pango.Layout (this.PangoContext);
layout.FontDescription = Pango.FontDescription.FromString ("Tahoma 8");
}
bool isX = pos == AxisPosition.Top || pos == AxisPosition.Bottom;
bool isTop = pos == AxisPosition.Top || pos == AxisPosition.Right;
double start = GetStart (ad);
double end = GetEnd (ad);
e.Init (GetOrigin (ad));
while (e.CurrentValue > start)
e.MovePrevious ();
int lastPosLabel;
int lastPos;
int lastTw = 0;
if (isX) {
lastPosLabel = reverseXAxis ? left + width + MinLabelGapX : left - MinLabelGapX;
lastPos = left - minTickStep*2;
}
else {
lastPosLabel = reverseYAxis ? top - MinLabelGapY : rheight + MinLabelGapY;
lastPos = top + height + minTickStep*2;
}
for ( ; e.CurrentValue <= end; e.MoveNext ())
{
int px, py;
int tw = 0, th = 0;
int tick = tickSize;
GetPoint (e.CurrentValue, e.CurrentValue, out px, out py);
if (showLabels) {
layout.SetMarkup (e.CurrentLabel);
layout.GetPixelSize (out tw, out th);
}
if (isX) {
if (Math.Abs ((long)px - (long)lastPos) < minTickStep || px < left || px > left + width)
continue;
lastPos = px;
bool labelFits = false;
if ((Math.Abs (px - lastPosLabel) - (tw/2) - (lastTw/2)) >= MinLabelGapX) {
lastPosLabel = px;
lastTw = tw;
labelFits = true;
}
if (isTop) {
if (showLabels) {
if (labelFits)
win.DrawLayout (gc, px - (tw/2), top - AreaBorderWidth - th, layout);
else
tick = tick / 2;
}
win.DrawLine (gc, px, top, px, top + tick);
}
else {
if (showLabels) {
if (labelFits)
win.DrawLayout (gc, px - (tw/2), top + height + AreaBorderWidth, layout);
else
tick = tick / 2;
}
win.DrawLine (gc, px, top + height, px, top + height - tick);
}
}
else {
if (Math.Abs ((long)lastPos - (long)py) < minTickStep || py < top || py > top + height)
continue;
lastPos = py;
bool labelFits = false;
if ((Math.Abs (py - lastPosLabel) - (th/2) - (lastTw/2)) >= MinLabelGapY) {
lastPosLabel = py;
lastTw = th;
labelFits = true;
}
if (isTop) {
if (showLabels) {
if (labelFits)
win.DrawLayout (gc, left + width + AreaBorderWidth + 1, py - (th/2), layout);
else
tick = tick / 2;
}
win.DrawLine (gc, left + width, py, left + width - tick, py);
}
else {
if (showLabels) {
if (labelFits)
win.DrawLayout (gc, left - AreaBorderWidth - tw - 1, py - (th/2), layout);
else
tick = tick / 2;
}
win.DrawLine (gc, left, py, left + tick, py);
}
}
}
}
void DrawTicks(Context ctx, TickEnumerator e, AxisPosition pos, AxisDimension ad, int tickSize, bool showLabels)
{
double rheight = Bounds.Height;
TextLayout layout = null;
if (showLabels)
{
layout = new TextLayout(ctx);
layout.Font = chartFont;
}
bool isX = pos == AxisPosition.Top || pos == AxisPosition.Bottom;
bool isTop = pos == AxisPosition.Top || pos == AxisPosition.Right;
double start = GetStart(ad);
double end = GetEnd(ad);
e.Init(GetOrigin(ad));
while (e.CurrentValue > start)
{
e.MovePrevious();
}
double lastPosLabel;
double lastPos;
double lastTw = 0;
if (isX)
{
lastPosLabel = reverseXAxis ? left + width + MinLabelGapX : left - MinLabelGapX;
lastPos = left - minTickStep * 2;
}
else
{
lastPosLabel = reverseYAxis ? top - MinLabelGapY : rheight + MinLabelGapY;
lastPos = top + height + minTickStep * 2;
}
for ( ; e.CurrentValue <= end; e.MoveNext())
{
double px, py;
double tw = 0, th = 0;
int tick = tickSize;
GetPoint(e.CurrentValue, e.CurrentValue, out px, out py);
if (showLabels)
{
layout.Text = e.CurrentLabel;
var ts = layout.GetSize();
tw = ts.Width;
th = ts.Height;
}
if (isX)
{
if (Math.Abs((long)px - (long)lastPos) < minTickStep || px < left || px > left + width)
{
continue;
}
lastPos = px;
bool labelFits = false;
if ((Math.Abs(px - lastPosLabel) - (tw / 2) - (lastTw / 2)) >= MinLabelGapX)
{
lastPosLabel = px;
lastTw = tw;
labelFits = true;
}
if (isTop)
{
if (showLabels)
{
if (labelFits)
{
ctx.DrawTextLayout(layout, px - (tw / 2), top - AreaBorderWidth - th);
}
else
{
tick = tick / 2;
}
}
ctx.MoveTo(px, top);
ctx.LineTo(px, top + tick);
ctx.Stroke();
}
else
{
if (showLabels)
{
if (labelFits)
{
ctx.DrawTextLayout(layout, px - (tw / 2), top + height + AreaBorderWidth);
}
else
{
tick = tick / 2;
}
}
ctx.MoveTo(px, top + height);
ctx.LineTo(px, top + height - tick);
ctx.Stroke();
}
}
else
{
if (Math.Abs((long)lastPos - (long)py) < minTickStep || py < top || py > top + height)
{
continue;
}
lastPos = py;
bool labelFits = false;
if ((Math.Abs(py - lastPosLabel) - (th / 2) - (lastTw / 2)) >= MinLabelGapY)
{
lastPosLabel = py;
lastTw = th;
labelFits = true;
}
if (isTop)
{
if (showLabels)
{
if (labelFits)
{
ctx.DrawTextLayout(layout, left + width + AreaBorderWidth + 1, py - (th / 2));
}
else
{
tick = tick / 2;
}
}
ctx.MoveTo(left + width, py);
ctx.LineTo(left + width - tick, py);
ctx.Stroke();
}
else
{
if (showLabels)
{
if (labelFits)
{
ctx.DrawTextLayout(layout, left - AreaBorderWidth - tw - 1, py - (th / 2));
}
else
{
tick = tick / 2;
}
}
ctx.MoveTo(left, py);
ctx.LineTo(left + tick, py);
ctx.Stroke();
}
}
}
}
double MeasureTicksSize (Context ctx, TickEnumerator e, AxisDimension ad)
{
double max = 0;
TextLayout layout = new TextLayout ();
layout.Font = chartFont;
double start = GetStart (ad);
double end = GetEnd (ad);
e.Init (GetOrigin (ad));
while (e.CurrentValue > start)
e.MovePrevious ();
for ( ; e.CurrentValue <= end; e.MoveNext ())
{
layout.Text = e.CurrentLabel;
Size ts = layout.GetSize ();
if (ad == AxisDimension.X) {
if (ts.Height > max)
max = ts.Height;
} else {
if (ts.Width > max)
max = ts.Width;
}
}
return max;
}
void DrawTicks (Context ctx, TickEnumerator e, AxisPosition pos, AxisDimension ad, int tickSize, bool showLabels)
{
double rheight = Bounds.Height;
TextLayout layout = null;
if (showLabels) {
layout = new TextLayout ();
layout.Font = chartFont;
}
bool isX = pos == AxisPosition.Top || pos == AxisPosition.Bottom;
bool isTop = pos == AxisPosition.Top || pos == AxisPosition.Right;
double start = GetStart (ad);
double end = GetEnd (ad);
e.Init (GetOrigin (ad));
while (e.CurrentValue > start)
e.MovePrevious ();
double lastPosLabel;
double lastPos;
double lastTw = 0;
if (isX) {
lastPosLabel = reverseXAxis ? left + width + MinLabelGapX : left - MinLabelGapX;
lastPos = left - minTickStep*2;
}
else {
lastPosLabel = reverseYAxis ? top - MinLabelGapY : rheight + MinLabelGapY;
lastPos = top + height + minTickStep*2;
}
for ( ; e.CurrentValue <= end; e.MoveNext ())
{
double px, py;
double tw = 0, th = 0;
int tick = tickSize;
GetPoint (e.CurrentValue, e.CurrentValue, out px, out py);
if (showLabels) {
layout.Text = e.CurrentLabel;
var ts = layout.GetSize ();
tw = ts.Width;
th = ts.Height;
}
if (isX) {
if (Math.Abs ((long)px - (long)lastPos) < minTickStep || px < left || px > left + width)
continue;
lastPos = px;
bool labelFits = false;
if ((Math.Abs (px - lastPosLabel) - (tw/2) - (lastTw/2)) >= MinLabelGapX) {
lastPosLabel = px;
lastTw = tw;
labelFits = true;
}
if (isTop) {
if (showLabels) {
if (labelFits)
ctx.DrawTextLayout (layout, px - (tw/2), top - AreaBorderWidth - th);
else
tick = tick / 2;
}
ctx.MoveTo (px, top);
ctx.LineTo (px, top + tick);
ctx.Stroke ();
}
else {
if (showLabels) {
if (labelFits)
ctx.DrawTextLayout (layout, px - (tw/2), top + height + AreaBorderWidth);
else
tick = tick / 2;
}
ctx.MoveTo (px, top + height);
ctx.LineTo (px, top + height - tick);
ctx.Stroke ();
}
}
else {
if (Math.Abs ((long)lastPos - (long)py) < minTickStep || py < top || py > top + height)
continue;
lastPos = py;
bool labelFits = false;
if ((Math.Abs (py - lastPosLabel) - (th/2) - (lastTw/2)) >= MinLabelGapY) {
lastPosLabel = py;
lastTw = th;
labelFits = true;
}
if (isTop) {
if (showLabels) {
if (labelFits)
ctx.DrawTextLayout (layout, left + width + AreaBorderWidth + 1, py - (th/2));
else
tick = tick / 2;
}
ctx.MoveTo (left + width, py);
ctx.LineTo (left + width - tick, py);
ctx.Stroke ();
}
else {
if (showLabels) {
if (labelFits)
ctx.DrawTextLayout (layout, left - AreaBorderWidth - tw - 1, py - (th/2));
else
tick = tick / 2;
}
ctx.MoveTo (left, py);
ctx.LineTo (left + tick, py);
ctx.Stroke ();
}
}
}
}
