void InternalDrawString(char[] textBuffer, int startAt, int len, float x, float y)
{
UpdateGlyphLayoutSettings();
//unscale layout, with design unit scale
_glyphLayout.Layout(textBuffer, startAt, len);
//
//
//
if (this._pxScaleEngine != null)
{
_outputPxScaledGlyphPlans.Clear();
//scale to specific font size
_pxScaleEngine.Layout(_glyphLayout.ResultUnscaledGlyphPositions, _outputPxScaledGlyphPlans);
DrawFromGlyphPlans(_outputPxScaledGlyphPlans, x, y);
}
else
{
_outputUnscaledGlyphPlans.Clear();
//no custom engine
//then use default scale
GlyphLayoutExtensions.GenerateGlyphPlans(
_glyphLayout.ResultUnscaledGlyphPositions,
_currentFontSizePxScale,
false,
_outputPxScaledGlyphPlans);
DrawFromGlyphPlans(_outputUnscaledGlyphPlans, x, y);
}
}
public override void DrawString(char[] textBuffer, int startAt, int len, float x, float y)
{
_reusableUnscaledGlyphPlanList.Clear();
//1. unscale layout, in design unit
_glyphLayout.Layout(textBuffer, startAt, len);
_glyphLayout.GenerateUnscaledGlyphPlans(_reusableUnscaledGlyphPlanList);
//draw from the glyph plan seq
DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
x, y);
}
} // End Sub DrawFromGlyphPlans
public override void DrawString(char[] textBuffer, int startAt, int len, float x, float y)
{
this.TargetGraphics.SetTextAndFont(new string(textBuffer), this.Typeface.Name, this.FontSizeInPoints);
this.TargetGraphics.OpenGroup();
_reusableUnscaledGlyphPlanList.Clear();
//1. unscale layout, in design unit
_glyphLayout.Layout(textBuffer, startAt, len);
_glyphLayout.GenerateUnscaledGlyphPlans(_reusableUnscaledGlyphPlanList);
//draw from the glyph plan seq
DrawFromGlyphPlans(new GlyphPlanSequence(_reusableUnscaledGlyphPlanList), x, y);
this.TargetGraphics.CloseGroup();
} // End Sub DrawString
public void Draw()
{
//List<UserCodePointToGlyphIndex> userCharToGlyphIndexMap = _line._userCodePointToGlyphIndexMap;
if (_line.ContentChanged)
{
//TODO: or font face/font-size change
//re-calculate
char[] textBuffer = _line._charBuffer.ToArray();
//userCharToGlyphIndexMap.Clear();
//read glyph plan and userCharToGlyphIndexMap
_reusableUnscaledGlyphPlanList.Clear();
_printer.GenerateGlyphPlan(textBuffer, 0, textBuffer.Length, _reusableUnscaledGlyphPlanList);
_line.ContentChanged = false;
}
if (_reusableUnscaledGlyphPlanList.Count > 0)
{
_printer.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
X, Y);
//draw caret
//not blink in this version
int caret_index = _line.CaretCharIndex;
//find caret pos based on glyph plan
//TODO: check when do gsub (glyph number may not match with user char number)
if (caret_index == 0)
{
//_printer.DrawCaret(X, this.Y);
}
else
{
//UserCodePointToGlyphIndex map = userCharToGlyphIndexMap[caret_index - 1];
//GlyphPlan p = glyphPlans[map.glyphIndexListOffset_plus1 + map.len - 2];
//_printer.DrawCaret(X + (p.ExactX + p.AdvanceX), this.Y);
}
}
else
{
//_printer.DrawCaret(X, this.Y);
}
}
public override void DrawString(char[] textBuffer, int startAt, int len, float x, float y)
{
//----------------
//TODO: use typography text service
//it should be faster since it has glyph-plan cache
//----------------
//1. update
UpdateGlyphLayoutSettings();
//2. unscale layout, in design unit
this._glyphLayout.Layout(textBuffer, startAt, len);
//3. scale to specific font size
_resuableGlyphPlanList.Clear();
GlyphLayoutExtensions.GenerateGlyphPlans(
_glyphLayout.ResultUnscaledGlyphPositions,
_currentTypeface.CalculateScaleToPixelFromPointSize(this.FontSizeInPoints),
false,
_reusablePxScaleGlyphPlanList);
DrawFromGlyphPlans(_resuableGlyphPlanList, x, y);
}
private void cmdMeasureTextSpan_Click(object sender, System.EventArgs e)
{
//set some Gdi+ props...
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.White);
//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, -(float)300); // Translate the drawing area accordingly
//--------------------------------
//textspan measurement sample
//--------------------------------
_currentTextPrinter.HintTechnique = (HintTechnique)lstHintList.SelectedItem;
_currentTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//render at specific pos
float x_pos = 0, y_pos = 100;
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
_reusableUnscaledGlyphPlan.Clear();
_currentTextPrinter.GenerateGlyphPlan(textBuffer, 0, textBuffer.Length, _reusableUnscaledGlyphPlan);
//2.2
//and we can print the formatted glyph plan later.
y_pos -= _currentTextPrinter.FontLineSpacingPx;
_currentTextPrinter.FillColor = Color.Red;
_currentTextPrinter.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlan),
x_pos,
y_pos
);
//Example 3: MeasureString
//TODO: review here again
MeasuredStringBox strBox = _currentTextPrinter.GlyphLayoutMan.LayoutAndMeasureString(
textBuffer, 0,
textBuffer.Length,
_currentTextPrinter.FontSizeInPoints);
//draw line mark
float x_pos2 = x_pos + strBox.width + 10;
g.DrawRectangle(Pens.Red, x_pos, y_pos, 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
_currentTextPrinter.FillColor = Color.Black;
//transform back
g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
g.TranslateTransform(0.0F, -(float)300); // Translate the drawing area accordingly
}
/// <summary>
/// generate glyph run into a given textRun
/// </summary>
/// <param name="outputTextRun"></param>
/// <param name="charBuffer"></param>
/// <param name="start"></param>
/// <param name="len"></param>
public void GenerateGlyphRuns(TextRun outputTextRun, char[] charBuffer, int start, int len)
{
// layout glyphs with selected layout technique
float sizeInPoints = this.FontSizeInPoints;
outputTextRun.typeface = this.Typeface;
outputTextRun.sizeInPoints = sizeInPoints;
//in this version we store original glyph into the mesh collection
//and then we scale it later, so I just specific font size=0 (you can use any value)
_glyphMeshCollection.SetCacheInfo(this.Typeface, 0, this.HintTechnique);
GlyphLayoutMan.Typeface = this.Typeface;
GlyphLayoutMan.Layout(charBuffer, start, len);
float pxscale = this.Typeface.CalculateScaleToPixelFromPointSize(sizeInPoints);
_resuableGlyphPlanList.Clear();
GenerateGlyphPlan(charBuffer, 0, charBuffer.Length, _resuableGlyphPlanList);
// render each glyph
int planCount = _resuableGlyphPlanList.Count;
for (var i = 0; i < planCount; ++i)
{
_pathTranslator.Reset();
//----
//glyph path
//----
UnscaledGlyphPlan glyphPlan = _resuableGlyphPlanList[i];
//
//1. check if we have this glyph in cache?
//if yes, not need to build it again
ProcessedGlyph processGlyph;
float[] tessData = null;
if (!_glyphMeshCollection.TryGetCacheGlyph(glyphPlan.glyphIndex, out processGlyph))
{
//if not found the create a new one and register it
var writablePath = new WritablePath();
_pathTranslator.SetOutput(writablePath);
_currentGlyphPathBuilder.BuildFromGlyphIndex(glyphPlan.glyphIndex, sizeInPoints);
_currentGlyphPathBuilder.ReadShapes(_pathTranslator);
//-------
//do tess
int[] endContours;
float[] flattenPoints = _curveFlattener.Flatten(writablePath._points, out endContours);
tessData = _tessTool.TessAsTriVertexArray(flattenPoints, endContours, out int vertexCount);
processGlyph = new ProcessedGlyph(tessData, (ushort)vertexCount);
_glyphMeshCollection.RegisterCachedGlyph(glyphPlan.glyphIndex, processGlyph);
}
outputTextRun.AddGlyph(
new GlyphRun(glyphPlan,
processGlyph.tessData,
processGlyph.vertextCount));
}
}
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();
}
private void cmdMeasureTextSpan_Click(object sender, System.EventArgs e)
{
//set some Gdi+ props...
g.SmoothingMode = System.Drawing.Drawing2D.SmoothingMode.HighQuality;
g.Clear(Color.White);
//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, -(float)300); // Translate the drawing area accordingly
//--------------------------------
//textspan measurement sample
//--------------------------------
_currentTextPrinter.HintTechnique = (HintTechnique)lstHintList.SelectedItem;
_currentTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//render at specific pos
float x_pos = 0, y_pos = 100;
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 -= _currentTextPrinter.FontLineSpacingPx;
_currentTextPrinter.FillColor = Color.Red;
_currentTextPrinter.DrawFromGlyphPlans(
new GlyphPlanSequence(_reusableUnscaledGlyphPlanList),
x_pos,
y_pos
);
//Example 3: MeasureString
Typography.OpenFont.Typeface typeface = _currentTextPrinter.Typeface;
UnscaledGlyphPlanList userGlyphPlans = new UnscaledGlyphPlanList();
_currentTextPrinter.GlyphLayoutMan.GenerateUnscaledGlyphPlans(userGlyphPlans);
MeasuredStringBox strBox = new MeasuredStringBox();
throw new System.NotSupportedException();
//_currentTextPrinter.GlyphLayoutMan.LayoutAndMeasureString(
// textBuffer, 0, textBuffer.Length,
// _currentTextPrinter.FontSizeInPoints,
// true,
// userGlyphPlans);
float x_pos2 = x_pos + strBox.width + 10;
g.DrawRectangle(Pens.Red, x_pos, y_pos + strBox.descending, strBox.width, strBox.CalculateLineHeight());
g.DrawLine(Pens.Blue, x_pos, y_pos, x_pos2, y_pos); //baseline
g.DrawLine(Pens.Green, x_pos, y_pos + strBox.descending, x_pos2, y_pos + strBox.descending); //descending
g.DrawLine(Pens.Magenta, x_pos, y_pos + strBox.ascending, x_pos2, y_pos + strBox.ascending); //ascending
Typography.OpenFont.TypefaceExtension2.UpdateAllCffGlyphBounds(typeface);
float pxscale = typeface.CalculateScaleToPixelFromPointSize(_currentTextPrinter.FontSizeInPoints);
int j = userGlyphPlans.Count;
for (int i = 0; i < j; ++i)
{
UnscaledGlyphPlan glyphPlan = userGlyphPlans[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);
}
//------------
_currentTextPrinter.FillColor = Color.Black;
//transform back
g.ScaleTransform(1.0F, -1.0F); // Flip the Y-Axis
g.TranslateTransform(0.0F, -(float)300); // Translate the drawing area accordingly
}
