void UpdateRenderOutput()
{
if (!_readyToRender)
{
return;
}
//
//test option use be used with lcd subpixel rendering.
//this demonstrate how we shift a pixel for subpixel rendering tech
_devVxsTextPrinter.UseWithLcdSubPixelRenderingTechnique = true;
//1. read typeface from font file
TypographyTest.RenderChoice renderChoice = _basicOptions.RenderChoice;
switch (renderChoice)
{
case TypographyTest.RenderChoice.RenderWithGdiPlusPath:
//not render in this example
//see more at ...
break;
case TypographyTest.RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
//clear previous draw
painter.Clear(PixelFarm.Drawing.Color.White);
painter.UseSubPixelLcdEffect = false;
painter.FillColor = PixelFarm.Drawing.Color.Black;
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.Typeface = _basicOptions.Typeface;
selectedTextPrinter.FontSizeInPoints = _basicOptions.FontSizeInPoints;
selectedTextPrinter.ScriptLang = _basicOptions.ScriptLang;
selectedTextPrinter.PositionTechnique = _basicOptions.PositionTech;
selectedTextPrinter.HintTechnique = HintTechnique.None;
selectedTextPrinter.EnableLigature = true;
_devVxsTextPrinter.UpdateGlyphLayoutSettings();
//
_controllerForPixelFarm.ReadyToRender = true;
_controllerForPixelFarm.UpdateOutput();
//----------------
//copy from Agg's memory buffer to gdi
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
break;
default:
throw new NotSupportedException();
}
}
private void button2_Click(object sender, EventArgs e)
{
//test text service
if (_textService == null)
{
_textService = new TextServiceHub();
}
Typography.TextServices.TextShapingService shapingService = _textService.ShapingService;
shapingService.SetCurrentFont(_basicOptions.Typeface.Name, InstalledFontStyle.Normal, 8);
shapingService.SetCurrentScriptLang(Typography.OpenFont.ScriptLangs.Latin);
GlyphPlanSequence seq = shapingService.LayoutText("Hello");
//----
// test render the output
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.Typeface = _basicOptions.Typeface;
selectedTextPrinter.FontSizeInPoints = _basicOptions.FontSizeInPoints;
selectedTextPrinter.ScriptLang = _basicOptions.ScriptLang;
selectedTextPrinter.PositionTechnique = _basicOptions.PositionTech;
selectedTextPrinter.HintTechnique = HintTechnique.None;
selectedTextPrinter.EnableLigature = true;
_devVxsTextPrinter.UpdateGlyphLayoutSettings();
//-------------
//pre-render
painter.Clear(PixelFarm.Drawing.Color.White);
painter.UseSubPixelRendering = false;
painter.FillColor = PixelFarm.Drawing.Color.Black;
_devVxsTextPrinter.TargetCanvasPainter = painter; //*** essential ***
//render!,
float x = 20, y = 200;
_devVxsTextPrinter.DrawFromGlyphPlans(
GlyphPlanSequence.UnsafeGetInteralGlyphPlanList(seq),
seq.startAt,
seq.len,
x, y);
//----------
//use this util to copy image from Agg actual image to System.Drawing.Bitmap
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(painter.Graphics.DestActualImage, winBmp);
//----------------
//copy from Agg's memory buffer to gdi
//PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
void UpdateRenderOutput()
{
if (!_readyToRender)
{
return;
}
//
if (g == null)
{
destImg = new ActualImage(800, 600, PixelFormat.ARGB32);
imgGfx2d = new ImageGraphics2D(destImg); //no platform
painter = new AggCanvasPainter(imgGfx2d);
winBmp = new Bitmap(destImg.Width, destImg.Height, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = this.CreateGraphics();
painter.CurrentFont = new PixelFarm.Drawing.RequestFont("tahoma", 14);
_devVxsTextPrinter = new VxsTextPrinter(painter, _basicOptions.OpenFontStore);
_devVxsTextPrinter.TargetCanvasPainter = painter;
_devVxsTextPrinter.ScriptLang = _basicOptions.ScriptLang;
_devVxsTextPrinter.PositionTechnique = Typography.TextLayout.PositionTechnique.OpenFont;
//_devGdiTextPrinter.TargetGraphics = g;
}
if (string.IsNullOrEmpty(this.txtInputChar.Text))
{
return;
}
//test option use be used with lcd subpixel rendering.
//this demonstrate how we shift a pixel for subpixel rendering tech
_devVxsTextPrinter.UseWithLcdSubPixelRenderingTechnique = _contourAnalysisOpts.SetupPrinterLayoutForLcdSubPix;
//1. read typeface from font file
TypographyTest.RenderChoice renderChoice = _basicOptions.RenderChoice;
switch (renderChoice)
{
case TypographyTest.RenderChoice.RenderWithGdiPlusPath:
//not render in this example
//see more at ...
break;
case TypographyTest.RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
//clear previous draw
painter.Clear(PixelFarm.Drawing.Color.White);
painter.UseSubPixelRendering = _contourAnalysisOpts.LcdTechnique;
painter.FillColor = PixelFarm.Drawing.Color.Black;
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.Typeface = _basicOptions.Typeface;
selectedTextPrinter.FontSizeInPoints = _basicOptions.FontSizeInPoints;
selectedTextPrinter.ScriptLang = _basicOptions.ScriptLang;
selectedTextPrinter.PositionTechnique = _basicOptions.PositionTech;
selectedTextPrinter.HintTechnique = _glyphRenderOptions.HintTechnique;
selectedTextPrinter.EnableLigature = _glyphRenderOptions.EnableLigature;
//test print 3 lines
#if DEBUG
GlyphDynamicOutline.dbugTestNewGridFitting = _contourAnalysisOpts.EnableGridFit;
GlyphDynamicOutline.dbugActualPosToConsole = _contourAnalysisOpts.WriteFitOutputToConsole;
GlyphDynamicOutline.dbugUseHorizontalFitValue = _contourAnalysisOpts.UseHorizontalFitAlignment;
#endif
char[] printTextBuffer = this.txtInputChar.Text.ToCharArray();
float x_pos = 0, y_pos = 200;
float lineSpacingPx = selectedTextPrinter.FontLineSpacingPx;
for (int i = 0; i < 1; ++i)
{
selectedTextPrinter.DrawString(printTextBuffer, x_pos, y_pos);
y_pos -= lineSpacingPx;
}
//copy from Agg's memory buffer to gdi
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
break;
//==============================================
//render 1 glyph for debug and test
case TypographyTest.RenderChoice.RenderWithMsdfGen:
case TypographyTest.RenderChoice.RenderWithSdfGen:
{
char testChar = this.txtInputChar.Text[0];
Typeface typeFace = _basicOptions.Typeface;
RenderWithMsdfImg(typeFace, testChar, _basicOptions.FontSizeInPoints);
}
break;
case TypographyTest.RenderChoice.RenderWithMiniAgg_SingleGlyph:
{
selectedTextPrinter = _devVxsTextPrinter;
//for test only 1 char
RenderSingleCharWithMiniAgg(
_basicOptions.Typeface,
this.txtInputChar.Text[0],
_basicOptions.FontSizeInPoints);
}
break;
default:
throw new NotSupportedException();
}
}
public void BindPrinter(DevTextPrinterBase printer)
{
_printer = printer;
}
private void button1_Click(object sender, EventArgs e)
{
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.Typeface = _basicOptions.Typeface;
selectedTextPrinter.FontSizeInPoints = _basicOptions.FontSizeInPoints;
selectedTextPrinter.ScriptLang = _basicOptions.ScriptLang;
selectedTextPrinter.PositionTechnique = _basicOptions.PositionTech;
selectedTextPrinter.HintTechnique = HintTechnique.None;
selectedTextPrinter.EnableLigature = true;
_devVxsTextPrinter.UpdateGlyphLayoutSettings();
//-------
var editableTextBlockLayoutEngine = new EditableTextBlockLayoutEngine();
editableTextBlockLayoutEngine.DefaultTypeface = _basicOptions.Typeface;
editableTextBlockLayoutEngine.FontSizeInPts = _basicOptions.FontSizeInPoints;
editableTextBlockLayoutEngine.LoadText("ABCD\r\n EFGH!");
editableTextBlockLayoutEngine.DoLayout();
//then we render the output to the screen
//see UpdateRenderOutput() code
//clear previous draw
//----------------
//-------------
painter.Clear(PixelFarm.Drawing.Color.White);
painter.UseSubPixelLcdEffect = false;
painter.FillColor = PixelFarm.Drawing.Color.Black;
_devVxsTextPrinter.TargetCanvasPainter = painter;
List <EditableTextLine> textlines = editableTextBlockLayoutEngine.UnsafeGetEditableTextLine();
//render eachline with painter
int lineCount = textlines.Count;
float x = 0;
int y = 200;
int lineSpacing = (int)_devVxsTextPrinter.FontLineSpacingPx;
for (int i = 0; i < lineCount; ++i)
{
EditableTextLine line = textlines[i];
List <IRun> runs = line.UnsageGetTextRunList();
int runCount = runs.Count;
for (int r = 0; r < runCount; ++r)
{
IRun run = runs[r];
TextRun textRun = run as TextRun;
if (textRun == null)
{
continue;
}
//
GlyphPlanSequence seq = textRun.GetGlyphPlanSeq();
_devVxsTextPrinter.DrawFromGlyphPlans(
GlyphPlanSequence.UnsafeGetInteralGlyphPlanList(seq),
seq.startAt,
seq.len,
x, y);
x += run.Width;
y -= lineSpacing; //next line?
}
x = 0; //reset at newline
}
//----------
//use this util to copy image from Agg actual image to System.Drawing.Bitmap
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(painter.RenderSurface.DestActualImage, winBmp);
//----------------
//copy from Agg's memory buffer to gdi
//PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
public Form1()
{
InitializeComponent();
_devVxsTextPrinter = new DevVxsTextPrinter();
_devGdiTextPrinter = new DevGdiTextPrinter();
this.sampleTextBox1.Visible = false;
selectedTextPrinter = _devVxsTextPrinter;
//default
//set script lang,
//test with Thai for 'complex script'
_devGdiTextPrinter.ScriptLang = _devVxsTextPrinter.ScriptLang = Typography.OpenFont.ScriptLangs.Thai;
_devGdiTextPrinter.PositionTechnique = _devVxsTextPrinter.PositionTechnique = PositionTechnique.OpenFont;
this.Load += new EventHandler(Form1_Load);
this.txtGridSize.KeyDown += TxtGridSize_KeyDown;
//----------
txtInputChar.TextChanged += (s, e) => UpdateRenderOutput();
//----------
cmbRenderChoices.Items.Add(RenderChoice.RenderWithMiniAgg_SingleGlyph);
cmbRenderChoices.Items.Add(RenderChoice.RenderWithGdiPlusPath);
cmbRenderChoices.Items.Add(RenderChoice.RenderWithTextPrinterAndMiniAgg);
cmbRenderChoices.Items.Add(RenderChoice.RenderWithMsdfGen);
cmbRenderChoices.SelectedIndex = 2;
cmbRenderChoices.SelectedIndexChanged += (s, e) => UpdateRenderOutput();
//----------
cmbPositionTech.Items.Add(PositionTechnique.OpenFont);
cmbPositionTech.Items.Add(PositionTechnique.Kerning);
cmbPositionTech.Items.Add(PositionTechnique.None);
cmbPositionTech.SelectedIndex = 0;
cmbPositionTech.SelectedIndexChanged += (s, e) => UpdateRenderOutput();
//----------
lstHintList.Items.Add(HintTechnique.None);
lstHintList.Items.Add(HintTechnique.TrueTypeInstruction);
lstHintList.Items.Add(HintTechnique.TrueTypeInstruction_VerticalOnly);
lstHintList.Items.Add(HintTechnique.CustomAutoFit);
lstHintList.SelectedIndex = 0;
lstHintList.SelectedIndexChanged += (s, e) => UpdateRenderOutput();
//----------
//----------
//share text printer to our sample textbox
//but you can create another text printer that specific to text textbox control
Graphics gx = this.sampleTextBox1.CreateGraphics();
_controllerForGdi.TextPrinter = _devGdiTextPrinter;
_controllerForGdi.BindHostGraphics(gx);
//----------
_controllerForPixelFarm.TextPrinter = _devVxsTextPrinter;
_controllerForPixelFarm.BindHostGraphics(gx);
//----------
this.sampleTextBox1.SetController(_controllerForPixelFarm);
button1.Click += (s, e) => UpdateRenderOutput();
chkShowGrid.CheckedChanged += (s, e) => UpdateRenderOutput();
chkShowTess.CheckedChanged += (s, e) => UpdateRenderOutput();
chkXGridFitting.CheckedChanged += (s, e) => UpdateRenderOutput();
chkYGridFitting.CheckedChanged += (s, e) => UpdateRenderOutput();
chkFillBackground.CheckedChanged += (s, e) => UpdateRenderOutput();
chkLcdTechnique.CheckedChanged += (s, e) => UpdateRenderOutput();
chkDrawBone.CheckedChanged += (s, e) => UpdateRenderOutput();
chkGsubEnableLigature.CheckedChanged += (s, e) => UpdateRenderOutput();
chkShowTess.CheckedChanged += (s, e) => UpdateRenderOutput();
//----------
lstFontSizes.Items.AddRange(
new object[] {
8, 9,
10, 11,
12,
14,
16,
18, 20, 22, 24, 26, 28, 36, 48, 72, 240, 300, 360
});
lstFontSizes.SelectedIndexChanged += (s, e) =>
{
//new font size
_fontSizeInPts = (int)lstFontSizes.SelectedItem;
UpdateRenderOutput();
};
//----------
//simple load test fonts from local test dir
//and send it into test list
int selectedFileIndex = -1;
//string selectedFontFileName = "pala.ttf";
string selectedFontFileName = "tahoma.ttf";
//string selectedFontFileName="cambriaz.ttf";
//string selectedFontFileName="CompositeMS2.ttf";
int fileIndexCount = 0;
foreach (string file in Directory.GetFiles("..\\..\\..\\TestFonts", "*.ttf"))
{
var tmpLocalFile = new TempLocalFontFile(file);
lstFontList.Items.Add(tmpLocalFile);
if (selectedFileIndex < 0 && tmpLocalFile.OnlyFileName == selectedFontFileName)
{
selectedFileIndex = fileIndexCount;
_selectedFontFilename = file;
}
fileIndexCount++;
}
if (selectedFileIndex < 0)
{
selectedFileIndex = 0;
}
lstFontList.SelectedIndex = selectedFileIndex;
lstFontList.SelectedIndexChanged += (s, e) =>
{
_selectedFontFilename = ((TempLocalFontFile)lstFontList.SelectedItem).actualFileName;
UpdateRenderOutput();
};
//----------------
//string inputstr = "ก้า";
string inputstr = "น้ำน้ำ";
//string inputstr = "fi";
//string inputstr = "ก่นกิ่น";
//string inputstr = "ญญู";
//string inputstr = "ป่า"; //for gpos test
//string inputstr = "快速上手";
//----------------
this.txtInputChar.Text = inputstr;
this.chkFillBackground.Checked = true;
}
void UpdateRenderOutput()
{
if (g == null)
{
destImg = new ActualImage(400, 300, PixelFormat.ARGB32);
imgGfx2d = new ImageGraphics2D(destImg); //no platform
p = new AggCanvasPainter(imgGfx2d);
winBmp = new Bitmap(400, 300, System.Drawing.Imaging.PixelFormat.Format32bppArgb);
g = this.CreateGraphics();
_devVxsTextPrinter.TargetCanvasPainter = p;
_devGdiTextPrinter.TargetGraphics = g;
}
if (string.IsNullOrEmpty(this.txtInputChar.Text))
{
return;
}
var hintTech = (HintTechnique)lstHintList.SelectedItem;
//1. read typeface from font file
RenderChoice renderChoice = (RenderChoice)this.cmbRenderChoices.SelectedItem;
switch (renderChoice)
{
case RenderChoice.RenderWithGdiPlusPath:
{
selectedTextPrinter = _devGdiTextPrinter;
selectedTextPrinter.FontFilename = _selectedFontFilename;
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//
selectedTextPrinter.DrawString(this.txtInputChar.Text.ToCharArray(), 0, 0);
}
break;
case RenderChoice.RenderWithTextPrinterAndMiniAgg:
{
//clear previous draw
p.Clear(PixelFarm.Drawing.Color.White);
p.UseSubPixelRendering = chkLcdTechnique.Checked;
p.FillColor = PixelFarm.Drawing.Color.Black;
selectedTextPrinter = _devVxsTextPrinter;
selectedTextPrinter.FontFilename = _selectedFontFilename;
selectedTextPrinter.FontSizeInPoints = _fontSizeInPts;
selectedTextPrinter.HintTechnique = hintTech;
selectedTextPrinter.PositionTechnique = (PositionTechnique)cmbPositionTech.SelectedItem;
//test print 3 lines
char[] printTextBuffer = this.txtInputChar.Text.ToCharArray();
float x_pos = 0, y_pos = 200;
float lineSpacingPx = selectedTextPrinter.FontLineSpacingPx;
for (int i = 0; i < 3; ++i)
{
selectedTextPrinter.DrawString(printTextBuffer, x_pos, y_pos);
y_pos -= lineSpacingPx;
}
//copy from Agg's memory buffer to gdi
PixelFarm.Agg.Imaging.BitmapHelper.CopyToGdiPlusBitmapSameSize(destImg, winBmp);
g.Clear(Color.White);
g.DrawImage(winBmp, new Point(10, 0));
}
break;
//==============================================
//render 1 glyph for debug and test
case RenderChoice.RenderWithMsdfGen:
case RenderChoice.RenderWithSdfGen:
{
char testChar = this.txtInputChar.Text[0];
using (var fs = new FileStream(_selectedFontFilename, FileMode.Open))
{
var reader = new OpenFontReader();
Typeface typeFace = reader.Read(fs);
RenderWithMsdfImg(typeFace, testChar, _fontSizeInPts);
}
}
break;
case RenderChoice.RenderWithMiniAgg_SingleGlyph:
{
//for test only 1 char
char testChar = this.txtInputChar.Text[0];
using (var fs = new FileStream(_selectedFontFilename, FileMode.Open))
{
var reader = new OpenFontReader();
Typeface typeFace = reader.Read(fs);
RenderWithMiniAgg(typeFace, testChar, _fontSizeInPts);
}
}
break;
default:
throw new NotSupportedException();
}
}
