void RenderAndShowMeasureBox()
{
bool flipY = chkFlipY.Checked;
//set some Gdi+ props...
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.White);
Typography.OpenFont.Typeface typeface = _currentTextPrinter.Typeface;
Typography.OpenFont.TypefaceExtension2.UpdateAllCffGlyphBounds(typeface);
float pxscale = typeface.CalculateScaleToPixelFromPointSize(_currentTextPrinter.FontSizeInPoints);
int lineSpacing = (int)System.Math.Ceiling((double)typeface.CalculateLineSpacing(LineSpacingChoice.TypoMetric) * pxscale);
if (flipY)
{
//credit:
//http://stackoverflow.com/questions/1485745/flip-coordinates-when-drawing-to-control
g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
g.TranslateTransform(0.0F, -500); // Translate the drawing area accordingly
}
//--------------------------------
//textspan measurement sample
//--------------------------------
_currentTextPrinter.HintTechnique = (HintTechnique)lstHintList.SelectedItem;
_currentTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
_currentTextPrinter.UpdateGlyphLayoutSettings();
//render at specific pos
float x_pos = 0, y_pos = lineSpacing * 2;
char[] textBuffer = txtInputChar.Text.ToCharArray();
//Example 1: this is a basic draw sample
_currentTextPrinter.FillColor = Color.Black;
_currentTextPrinter.TargetGraphics = g;
_currentTextPrinter.DrawString(
textBuffer,
0,
textBuffer.Length,
x_pos,
y_pos
);
//
//--------------------------------------------------
//Example 2: print glyph plan to 'user' list-> then draw it (or hold it/ not draw)
//you can create you own class to hold userGlyphPlans.***
//2.1
_reusableUnscaledGlyphPlanList.Clear();
_currentTextPrinter.GenerateGlyphPlan(textBuffer, 0, textBuffer.Length, _reusableUnscaledGlyphPlanList);
//2.2
//and we can print the formatted glyph plan later.
y_pos -= lineSpacing;//next line
_currentTextPrinter.FillColor = Color.Red;
_currentTextPrinter.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
x_pos,
y_pos
);
//Example 3: MeasureString
UnscaledGlyphPlanList glyphPlans = new UnscaledGlyphPlanList();
_currentTextPrinter.GlyphLayoutMan.GenerateUnscaledGlyphPlans(glyphPlans);
MeasuredStringBox strBox = _currentTextPrinter.GlyphLayoutMan.LayoutAndMeasureString(
textBuffer, 0, textBuffer.Length,
_currentTextPrinter.FontSizeInPoints);
int j = glyphPlans.Count;
float backup_xpos = x_pos;
for (int i = 0; i < j; ++i)
{
UnscaledGlyphPlan glyphPlan = glyphPlans[i];
Typography.OpenFont.Glyph glyph = typeface.GetGlyphByIndex(glyphPlan.glyphIndex);
//
Typography.OpenFont.Bounds b = glyph.Bounds;
//
float xmin = b.XMin * pxscale;
float ymin = b.YMin * pxscale;
//
float xmax = b.XMax * pxscale;
float ymax = b.YMax * pxscale;
//
float glyph_x = x_pos + glyphPlan.OffsetX;
g.DrawRectangle(Pens.Red, glyph_x + xmin, y_pos + ymin, xmax - xmin, ymax - ymin);
x_pos += glyphPlan.AdvanceX * pxscale;
}
x_pos = backup_xpos;
g.FillRectangle(Brushes.Red, new RectangleF(0, 0, 5, 5));//reference point(0,0)
g.FillRectangle(Brushes.Green, new RectangleF(x_pos, y_pos, 3, 3));
float x_pos2 = x_pos + strBox.width + 10;
g.DrawRectangle(Pens.Black, x_pos, y_pos + strBox.DescendingInPx, strBox.width, strBox.ClipHeightInPx);
g.DrawRectangle(Pens.Red, x_pos, y_pos + strBox.DescendingInPx, strBox.width, strBox.LineSpaceInPx);
g.DrawLine(Pens.Blue, x_pos, y_pos, x_pos2, y_pos); //baseline
g.DrawLine(Pens.Green, x_pos, y_pos + strBox.DescendingInPx, x_pos2, y_pos + strBox.DescendingInPx); //descending
g.DrawLine(Pens.Magenta, x_pos, y_pos + strBox.AscendingInPx, x_pos2, y_pos + strBox.AscendingInPx); //ascending
////------------
////draw another line (for reference)
y_pos -= lineSpacing;//next line
_currentTextPrinter.FillColor = Color.Black;
_currentTextPrinter.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
x_pos,
y_pos
);
//transform back
if (flipY)
{
g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
g.TranslateTransform(0.0F, -500); // Translate the drawing area accordingly
}
//---------
//txtMsgInfo.Text = "choice:" + choice.ToString() + "=" + lineSpacing.ToString();
}
void RenderAndShowMeasureBox()
{
bool flipY = chkFlipY.Checked;
//set some Gdi+ props...
_g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
_g.Clear(Color.White);
Typography.OpenFont.Typeface typeface = _currentTextPrinter.Typeface;
Typography.OpenFont.Extensions.TypefaceExtensions.UpdateAllCffGlyphBounds(typeface);
float pxscale = typeface.CalculateScaleToPixelFromPointSize(_currentTextPrinter.FontSizeInPoints);
int lineSpacing = (int)System.Math.Ceiling((double)typeface.CalculateLineSpacing(LineSpacingChoice.TypoMetric) * pxscale);
if (flipY)
{
//credit:
//http://stackoverflow.com/questions/1485745/flip-coordinates-when-drawing-to-control
_g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
_g.TranslateTransform(0.0F, -500); // Translate the drawing area accordingly
}
//--------------------------------
//textspan measurement sample
//--------------------------------
_currentTextPrinter.HintTechnique = (HintTechnique)lstHintList.SelectedItem;
_currentTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
_currentTextPrinter.UpdateGlyphLayoutSettings();
//render at specific pos
float x_pos = 0, y_pos = lineSpacing * 2;
char[] textBuffer = txtInputChar.Text.ToCharArray();
//Example 1: this is a basic draw sample
_currentTextPrinter.FillColor = Color.Black;
_currentTextPrinter.TargetGraphics = _g;
//_currentTextPrinter.DrawString(
// textBuffer,
// 0,
// textBuffer.Length,
// x_pos,
// y_pos
// );
//
//--------------------------------------------------
//Example 2: print glyph plan to 'user' list-> then draw it (or hold it/ not draw)
//you can create you own class to hold userGlyphPlans.***
//2.1
if (chkEnableMultiTypefaces.Checked)
{
_ftmGlyphPlansList.Clear();
_currentTextPrinter.GenerateGlyphPlans(textBuffer, 0, textBuffer.Length, _ftmGlyphPlansList);
//2.2
//and we can print the formatted glyph plan later.
y_pos -= lineSpacing;//next line
_currentTextPrinter.FillColor = Color.Red;
_currentTextPrinter.DrawFromFormattedGlyphPlans(
_ftmGlyphPlansList,
x_pos,
y_pos
);
//--------------------------------------------------
//Example 3: MeasureString
//3.1 use data in formatted_glyph_plan_list to measure string => OK, OR
//3.2 use another 'light-weight' text printer to measure string (without drawing actual string)
//3.1
_currentTextPrinter.MeasureGlyphPlanList(_ftmGlyphPlansList, out int measureWidth);
_g.DrawRectangle(Pens.Red, x_pos, y_pos, measureWidth, 30);
float baseline = y_pos;
//3.2 draw each glyph bounds
{
int m = _ftmGlyphPlansList.Count;
for (int i = 0; i < m; ++i)
{
FormattedGlyphPlanSeq seq = _ftmGlyphPlansList[i];
ResolvedFont resolvedFont = seq.ResolvedFont;
Typeface localTypeface = resolvedFont.Typeface;
pxscale = resolvedFont.GetScaleToPixelFromPointInSize();
GlyphPlanSequence glyph_seq = seq.Seq;
var snapToPxScale = new GlyphPlanSequenceSnapPixelScaleLayout(seq.Seq, 0, glyph_seq.Count, pxscale);
x_pos += (resolvedFont.WhitespaceWidth * seq.PrefixWhitespaceCount);
int nn = 0;///
while (snapToPxScale.Read())
{
//float cx = (float)Math.Round(snapToPxScale.ExactX + x_pos);
//float cy = (float)Math.Floor(snapToPxScale.ExactY + baseline);
UnscaledGlyphPlan glyphPlan = glyph_seq[nn];
Glyph glyph = localTypeface.GetGlyph(glyphPlan.glyphIndex);
Bounds b = glyph.Bounds;
//
float xmin = b.XMin * pxscale;
float ymin = b.YMin * pxscale;
//
float xmax = b.XMax * pxscale;
float ymax = b.YMax * pxscale;
//
float glyph_x = x_pos + (glyphPlan.OffsetX * pxscale);
_g.DrawRectangle(Pens.Red, glyph_x + xmin, y_pos + ymin, xmax - xmin, ymax - ymin);
x_pos += glyphPlan.AdvanceX * pxscale;
nn++;
}
x_pos += (resolvedFont.WhitespaceWidth * seq.PostfixWhitespaceCount);
}
}
_ftmGlyphPlansList.Clear();
}
else
{
_reusableUnscaledGlyphPlanList.Clear();
_currentTextPrinter.GenerateGlyphPlans(textBuffer, 0, textBuffer.Length, _reusableUnscaledGlyphPlanList);
//2.2
//and we can print the formatted glyph plan later.
y_pos -= lineSpacing;//next line
_currentTextPrinter.FillColor = Color.Red;
//
GlyphPlanSequence seq = new GlyphPlanSequence(_reusableUnscaledGlyphPlanList);
_currentTextPrinter.DrawFromGlyphPlans(
seq,
x_pos,
y_pos
);
//--------------------------------------------------
//Example 3: MeasureString
float descending_px = _currentTextPrinter.FontDescedingPx;
float ascending_px = _currentTextPrinter.FontAscendingPx;
float lineSpacing_px = _currentTextPrinter.FontLineSpacingPx;
float clippedHeight_px = _currentTextPrinter.FontClipHeightPx;
_currentTextPrinter.MeasureGlyphPlanSeq(seq, out int textspanW);
UnscaledGlyphPlanList glyphPlans = new UnscaledGlyphPlanList();
_currentTextPrinter.GenerateGlyphPlans(textBuffer, 0, textBuffer.Length, glyphPlans);
int j = glyphPlans.Count;
float backup_xpos = x_pos;
for (int i = 0; i < j; ++i)
{
UnscaledGlyphPlan glyphPlan = glyphPlans[i];
Glyph glyph = typeface.GetGlyph(glyphPlan.glyphIndex);
//
Bounds b = glyph.Bounds;
//
float xmin = b.XMin * pxscale;
float ymin = b.YMin * pxscale;
//
float xmax = b.XMax * pxscale;
float ymax = b.YMax * pxscale;
//
float glyph_x = x_pos + (glyphPlan.OffsetX * pxscale);
_g.DrawRectangle(Pens.Red, glyph_x + xmin, y_pos + ymin, xmax - xmin, ymax - ymin);
x_pos += glyphPlan.AdvanceX * pxscale;
}
x_pos = backup_xpos;
_g.FillRectangle(Brushes.Red, new RectangleF(0, 0, 5, 5));//reference point(0,0)
_g.FillRectangle(Brushes.Green, new RectangleF(x_pos, y_pos, 3, 3));
float x_pos2 = x_pos + textspanW + 10;
_g.DrawRectangle(Pens.Black, x_pos, y_pos + descending_px, textspanW, clippedHeight_px);
_g.DrawRectangle(Pens.Red, x_pos, y_pos + descending_px, textspanW, lineSpacing_px);
_g.DrawLine(Pens.Blue, x_pos, y_pos, x_pos2, y_pos); //baseline
_g.DrawLine(Pens.Green, x_pos, y_pos + descending_px, x_pos2, y_pos + descending_px); //descending
_g.DrawLine(Pens.Magenta, x_pos, y_pos + ascending_px, x_pos2, y_pos + ascending_px); //ascending
////------------
////draw another line (for reference)
y_pos -= lineSpacing;//next line
_currentTextPrinter.FillColor = Color.Black;
_currentTextPrinter.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
x_pos,
y_pos
);
}
//transform back
if (flipY)
{
_g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
_g.TranslateTransform(0.0F, -500); // Translate the drawing area accordingly
}
//---------
//txtMsgInfo.Text = "choice:" + choice.ToString() + "=" + lineSpacing.ToString();
}
