private void paintTick(int i, float valPixel, float valUnit, UnitScale scale, bool vertical)
{
int length = i % scale.BTickSteps == 0 ? drawWidth / 4 : i % scale.MTickSteps == 0 ? drawWidth / 6 : drawWidth / 16;
// Only draw one row of ticks in slim mode.
bool drawUpper = true;
bool drawLower = !settings.SlimMode;
// In 2D mode, don't draw ticks at connection to other scale.
if (resizeMode == FormResizeMode.TwoDimensional)
{
/*
* Check if we are within the area of a tick in the opposite direction
* or within the area of the opposite direction scale.
*/
drawUpper &= !(valPixel < length);
drawLower &= !(valPixel < drawWidth);
}
using (Brush brush = new SolidBrush(settings.Theme.TickColor))
using (Pen pen = new Pen(brush, 1))
using (Font font = new Font("Arial", 9))
{
float pos = valPixel;
if (!vertical)
{
if (drawUpper)
{
g.DrawLine(pen, pos, 0, pos, length);
}
if (drawLower)
{
g.DrawLine(pen, pos, drawWidth - length, pos, drawWidth);
}
if (valUnit > 0 && i % scale.BTickSteps == 0)
{
DrawString(Math.Round(valUnit, 2).ToString(), font, brush, pos - 8, length + 3);
}
}
else
{
if (drawUpper)
{
g.DrawLine(pen, 0, pos, length, pos);
}
if (drawLower)
{
g.DrawLine(pen, drawWidth - length, pos, drawWidth, pos);
}
if (valUnit > 0 && i % scale.BTickSteps == 0)
{
DrawString(Math.Round(valUnit, 2).ToString(), font, brush, length + 3, pos - 7);
}
}
}
}
protected void PaintRulerScale(bool vertical)
{
int max = vertical ? c.Size.Height : c.Size.Width;
// ----- Draw the ruler scale -----
UnitScale scale = Ticks[settings.MeasuringUnit];
// valUnit: the current position in the chosen unit.
// valPixel: the current position in pixels.
float valUnit = 0, valPixel = 0, i = 0;
while (valPixel <= max)
{
valPixel = converter.ConvertToPixel(valUnit, vertical);
int length = i % scale.BTickSteps == 0 ? drawWidth / 4 : i % scale.MTickSteps == 0 ? drawWidth / 6 : drawWidth / 16;
using (Brush brush = new SolidBrush(settings.Theme.TickColor))
using (Pen pen = new Pen(brush, 1))
using (Font font = new Font("Arial", 9))
{
float pos = valPixel;
if (!vertical)
{
if (resizeMode == FormResizeMode.Horizontal || pos > length)
{
g.DrawLine(pen, pos, 0, pos, length);
}
if (!settings.SlimMode && (resizeMode == FormResizeMode.Horizontal || valPixel > drawWidth))
{
g.DrawLine(pen, pos, drawWidth - length, pos, drawWidth);
}
if (valPixel > 0 && i % scale.BTickSteps == 0)
{
g.DrawString(Math.Round(valUnit, 2).ToString(), font, brush, pos - 8, length + 3);
}
}
else
{
if (resizeMode == FormResizeMode.Vertical || pos > length)
{
g.DrawLine(pen, 0, pos, length, pos);
}
if (!settings.SlimMode && (resizeMode == FormResizeMode.Vertical || valPixel > drawWidth))
{
g.DrawLine(pen, drawWidth - length, pos, drawWidth, pos);
}
if (valPixel > 0 && i % scale.BTickSteps == 0)
{
g.DrawString(Math.Round(valUnit, 2).ToString(), font, brush, length + 3, pos - 7);
}
}
}
valUnit += scale.StepSize;
i += 1;
}
// ----- Optionally, draw total length bound to right border and start offset -----
if (settings.ShowOffsetLengthLabels)
{
int roundingDigits = settings.SlimMode ? 1 : 2;
string lblLength = String.Format("{0}{1}",
Math.Round(converter.ConvertFromPixel(max, vertical), roundingDigits), converter.UnitString);
int offset = vertical ? c.Location.Y : c.Location.X;
string lblOffset = String.Format("{0}{1}",
Math.Round(converter.ConvertFromPixel(offset, vertical), roundingDigits), converter.UnitString);
using (Brush brush = new SolidBrush(settings.Theme.LengthLabelColor))
using (Font font = new Font("Arial", 9))
{
StringFormat format = new StringFormat()
{
Alignment = StringAlignment.Far
};
if (!vertical)
{
float y = drawWidth;
// adjust the label text based on ruler width
if (settings.SlimMode)
{
y -= 14;
}
else
{
y /= 2.0f;
}
g.DrawString(lblLength, font, brush, max, y, format);
// only draw offset label if not in two-dimensional mode, otherwise it would look messy
if (resizeMode != FormResizeMode.TwoDimensional)
{
g.DrawString(lblOffset, font, brush, 0, y);
}
}
else
{
float x = drawWidth;
if (!settings.SlimMode)
{
x *= (7.0f / 8.0f);
}
g.DrawString(lblLength, font, brush, x, max - 14, format);
// only draw offset label if not in two-dimensional mode, otherwise it would look messy
if (resizeMode != FormResizeMode.TwoDimensional)
{
g.DrawString(lblOffset, font, brush, x, 0, format);
}
}
}
}
}
protected void PaintRulerScale(bool vertical)
{
int max = vertical ? c.Height : c.Width;
// ----- Draw the ruler scale -----
UnitScale scale = Ticks[settings.MeasuringUnit];
// valUnit: the current position in the chosen unit.
// valPixel: the current position in pixels.
float valUnit = 0, valPixel = 0;
int i = 0;
while (valPixel <= max)
{
valPixel = converter.ConvertToPixel(valUnit, vertical);
paintTick(i, valPixel, valUnit, scale, vertical);
valUnit += scale.StepSize;
i += 1;
}
// ----- Optionally, draw total length bound to right border and start offset -----
if (settings.ShowOffsetLengthLabels)
{
int roundingDigits = settings.SlimMode ? 1 : 2;
string lblLength = converter.FormatFromPixel(max, vertical, roundingDigits);
// The offset value depends on whether the ruler is flipped.
int offset;
if (vertical)
{
if (settings.FlippedY)
{
offset = converter.ScreenSize.Height - c.Bottom;
}
else
{
offset = c.Top;
}
}
else
{
if (settings.FlippedX)
{
offset = converter.ScreenSize.Width - c.Right;
}
else
{
offset = c.Left;
}
}
string lblOffset = converter.FormatFromPixel(offset, vertical, roundingDigits);
using (Brush brush = new SolidBrush(settings.Theme.LengthLabelColor))
using (Font font = new Font("Arial", 9))
{
StringFormat format = new StringFormat()
{
Alignment = StringAlignment.Far
};
if (!vertical)
{
float y = drawWidth;
// adjust the label text based on ruler width
if (settings.SlimMode)
{
y -= LABEL_HEIGHT;
}
else
{
y /= 2.0f;
}
DrawString(lblLength, font, brush, max, y, format);
labelMargins.X = 0;
labelMargins.Width = max - (int)g.MeasureString(lblLength, font).Width;
// only draw offset label if not in two-dimensional mode, otherwise it would look messy
if (resizeMode != FormResizeMode.TwoDimensional)
{
DrawString(lblOffset, font, brush, 0, y);
labelMargins.X = (int)g.MeasureString(lblOffset, font).Width;
labelMargins.Width -= labelMargins.X;
}
}
else
{
float x = drawWidth;
if (!settings.SlimMode)
{
x *= (7.0f / 8.0f);
}
DrawString(lblLength, font, brush, x, max - LABEL_HEIGHT, format);
labelMargins.Y = 0;
labelMargins.Height = max - LABEL_HEIGHT;
// only draw offset label if not in two-dimensional mode, otherwise it would look messy
if (resizeMode != FormResizeMode.TwoDimensional)
{
DrawString(lblOffset, font, brush, x, 0, format);
labelMargins.Y = LABEL_HEIGHT;
labelMargins.Height -= labelMargins.Y;
}
}
}
}
else
{
labelMargins = new Rectangle(0, 0, int.MaxValue, int.MaxValue);
}
}
