public void RemoveWordStrip(GLRenderVxFormattedString vx)
{
_wordStrips.Remove(vx);
if (_full && _wordStrips.Count == 0)
{
Cleared?.Invoke(this);
}
}
/// <summary>
/// get current wordplate if there is avilable space, or create new one
/// </summary>
/// <param name="fmtPlate"></param>
/// <returns></returns>
public WordPlate GetWordPlate(GLRenderVxFormattedString fmtPlate)
{
if (_latestPlate != null &&
_latestPlate.HasAvailableSpace(fmtPlate))
{
return(_latestPlate);
}
return(GetNewWordPlate());
}
public void DrawString(GLRenderVxFormattedString renderVx, double x, double y)
{
_pcx.LoadTexture(_glBmp);
_pcx.FontFillColor = _painter.FontFillColor;
DrawingGL.GLRenderVxFormattedString renderVxString1 = (DrawingGL.GLRenderVxFormattedString)renderVx;
DrawingGL.VertexBufferObject vbo = renderVxString1.GetVbo();
vbo.Bind();
_pcx.DrawGlyphImageWithSubPixelRenderingTechnique4_FromLoadedVBO(renderVxString1.IndexArrayCount, (float)x, (float)y);
vbo.UnBind();
}
public override RenderVxFormattedString CreateRenderVx(string textspan)
{
char[] buffer = textspan.ToCharArray();
var renderVxFmtStr = new GLRenderVxFormattedString(buffer);
if (_textPrinter != null)
{
_textPrinter.PrepareStringForRenderVx(renderVxFmtStr, buffer, 0, buffer.Length);
}
return(renderVxFmtStr);
}
public void DrawString(GLBitmap glBmp, GLRenderVxFormattedString renderVx, double x, double y)
{
_pcx.FontFillColor = _painter.FontFillColor;
//for sharp edge glyph
_pcx.DrawGlyphImageWithSubPixelRenderingTechnique4_FromVBO(
glBmp,
renderVx.GetVbo(),
renderVx.IndexArrayCount,
(float)Math.Round(x),
(float)Math.Floor(y));
}
public bool HasAvailableSpace(GLRenderVxFormattedString renderVxFormattedString)
{
//check if we have avaliable space for this?
float width = renderVxFormattedString.Width;
float previewY = _currentY;
#if DEBUG
float previewX = _currentX;
#endif
if (_currentX + width > _plateWidth)
{
//move to newline
previewY += _currentLineHeightMax + INTERLINE_SPACE;
}
return(previewY + renderVxFormattedString.SpanHeight < _plateHeight);
}
public void PrepareStringForRenderVx(GLRenderVxFormattedString renderVxFormattedString, char[] buffer, int startAt, int len)
{
int top = 0; //simulate top
int left = 0; //simulate left
_vboBuilder.Clear();
_vboBuilder.SetTextureInfo(_glBmp.Width, _glBmp.Height, _glBmp.IsYFlipped, _pcx.OriginKind);
//create temp buffer span that describe the part of a whole char buffer
TextBufferSpan textBufferSpan = new TextBufferSpan(buffer, startAt, len);
//ask text service to parse user input char buffer and create a glyph-plan-sequence (list of glyph-plan)
//with specific request font
GlyphPlanSequence glyphPlanSeq = _textServices.CreateGlyphPlanSeq(ref textBufferSpan, _font);
float px_scale = _px_scale;
//--------------------------
TextureKind textureKind = _fontAtlas.TextureKind;
float g_left = 0;
float g_top = 0;
int baseLine = (int)Math.Round((float)top + _font.AscentInPixels);
int bottom = (int)Math.Round((float)top + _font.AscentInPixels - _font.DescentInPixels);
float acc_x = 0; //local accumulate x
float acc_y = 0; //local accumulate y
int seqLen = glyphPlanSeq.Count;
for (int i = 0; i < seqLen; ++i)
{
UnscaledGlyphPlan glyph = glyphPlanSeq[i];
Typography.Rendering.TextureGlyphMapData glyphData;
if (!_fontAtlas.TryGetGlyphMapData(glyph.glyphIndex, out glyphData))
{
//if no glyph data, we should render a missing glyph ***
continue;
}
//--------------------------------------
//TODO: review precise height in float
//--------------------------------------
//paint src rect
//temp fix, glyph texture img is not flipped
//but the associate info is flipped => so
//we need remap exact Y from the image
Rectangle srcRect =
new Rectangle(glyphData.Left,
_glBmp.Height - (glyphData.Top + glyphData.Height),
glyphData.Width,
glyphData.Height);
//offset length from 'base-line'
float x_offset = acc_x + (float)Math.Round(glyph.OffsetX * px_scale - glyphData.TextureXOffset);
float y_offset = acc_y + (float)Math.Round(glyph.OffsetY * px_scale - glyphData.TextureYOffset) + srcRect.Height; //***
//NOTE:
// -glyphData.TextureXOffset => restore to original pos
// -glyphData.TextureYOffset => restore to original pos
//--------------------------
g_left = (float)(left + x_offset);
g_top = (float)(bottom - y_offset); //***
acc_x += (float)Math.Round(glyph.AdvanceX * px_scale);
//g_x = (float)Math.Round(g_x); //***
g_top = (float)Math.Floor(g_top);//adjust to integer num ***
//
_vboBuilder.WriteVboToList(ref srcRect, g_left, g_top);
}
//---
//copy vbo result and store into renderVx
float[] vertexList = _vboBuilder._buffer.ToArray();
ushort[] indexList = _vboBuilder._indexList.ToArray();
//---
renderVxFormattedString.IndexArrayCount = _vboBuilder._indexList.Count;
renderVxFormattedString.IndexArray = _vboBuilder._indexList.ToArray();
renderVxFormattedString.VertexCoords = _vboBuilder._buffer.ToArray();
_vboBuilder.Clear();
}
public bool CreateWordStrip(GLPainter painter, GLRenderVxFormattedString renderVxFormattedString)
{
//--------------
//create stencil text buffer
//we use white glyphs on black bg
//--------------
if (!_isInitBg)
{
//by default, we init bg to black for stencil buffer
_isInitBg = true;
painter.Clear(Color.Black);
}
float width = renderVxFormattedString.Width;
if (_currentX + width > _plateWidth)
{
//move to newline
_currentY += _currentLineHeightMax + INTERLINE_SPACE;//interspace =4 px
_currentX = 0;
//new line
_currentLineHeightMax = (int)Math.Ceiling(renderVxFormattedString.SpanHeight);
}
//on current line
//check available height
if (_currentY + renderVxFormattedString.SpanHeight > _plateHeight)
{
_full = true;
return(false);
}
//----------------------------------
if (renderVxFormattedString.SpanHeight > _currentLineHeightMax)
{
_currentLineHeightMax = (int)Math.Ceiling(renderVxFormattedString.SpanHeight);
}
Color prevColor = painter.FontFillColor;
Color prevTextBgHint = painter.TextBgColorHint;
bool prevPreparingWordStrip = painter.PreparingWordStrip;
GlyphTexturePrinterDrawingTechnique prevTextDrawing = painter.TextPrinterDrawingTechnique;
painter.TextBgColorHint = Color.Black;
painter.FontFillColor = Color.White;
painter.PreparingWordStrip = true;
renderVxFormattedString.UseWithWordPlate = false;
GLBitmapGlyphTextPrinter textPrinter = (GLBitmapGlyphTextPrinter)painter.TextPrinter;
switch (renderVxFormattedString.GlyphMixMode)
{
case GLRenderVxFormattedStringGlyphMixMode.OnlyColorGlyphs:
{
//TODO: review this option again
//optional
painter.TextPrinterDrawingTechnique = GlyphTexturePrinterDrawingTechnique.Copy;
Rectangle currentClip = painter.ClipBox;
painter.SetClipBox(_currentX, _currentY, (int)(_currentX + width), _currentY + _currentLineHeightMax);
painter.Clear(Color.Transparent);
painter.SetClipBox(currentClip.Left, currentClip.Top, currentClip.Right, currentClip.Bottom); //restore
}
break;
}
//use special mode of the GLBitmapGlyphTextPrinter
//-----------
textPrinter.WordPlateCreatingMode = true; //turn on platemode
textPrinter.DrawString(renderVxFormattedString, _currentX, _currentY);
textPrinter.WordPlateCreatingMode = false; //switch back
//-----------
renderVxFormattedString.UseWithWordPlate = true; //restore
painter.FontFillColor = prevColor; //restore
painter.TextBgColorHint = prevTextBgHint; //restore
painter.PreparingWordStrip = prevPreparingWordStrip;
painter.TextPrinterDrawingTechnique = prevTextDrawing; //restore
//in this case we can dispose vbo inside renderVx
//(we can recreate that vbo later)
renderVxFormattedString.DisposeVbo();
renderVxFormattedString.OwnerPlate = this;
renderVxFormattedString.WordPlateLeft = (ushort)_currentX;
renderVxFormattedString.WordPlateTop = (ushort)_currentY;
renderVxFormattedString.UseWithWordPlate = true;
#if DEBUG
dbugUsedCount++;
#endif
_wordStrips.Add(renderVxFormattedString, true);
//--------
_currentX += (int)Math.Ceiling(renderVxFormattedString.Width) + INTERWORD_SPACE; //interspace x 1px
#if DEBUG
//dbugSaveBackBuffer("dbug_test1.png");
#endif
return(true);
}
