public void XyToIndexShouldWorkCorrectly()
{
ITextContext context = new TypographyTextContext("0123456", FontFile, 36,
FontStretch.Normal, FontStyle.Normal, FontWeight.Normal,
1000, 100,
TextAlignment.Leading);
// prepare debug contexts
{
surface = new Cairo.ImageSurface(Cairo.Format.Argb32, 2000, 2000);
g = new Cairo.Context(surface);
g.SetSourceRGBA(1, 1, 1, 1);
g.Paint();
g.SetSourceRGBA(0, 0, 0, 1);
g.LineWidth = 1;
}
// build path
CairoPathBuilder cairoPathBuilder;
cairoPathBuilder = new CairoPathBuilder(g, 0, 0, 1);
context.Build(Point.Zero, cairoPathBuilder);
bool isInside = false;
uint charIndex = context.XyToIndex(-1, 0, out isInside);
Assert.False(isInside);
Assert.Equal(0u, charIndex);
charIndex = context.XyToIndex(13, 0, out isInside);
Assert.True(isInside);
Assert.Equal(0u, charIndex);
charIndex = context.XyToIndex(37, 0, out isInside);
Assert.True(isInside);
Assert.Equal(1u, charIndex);
charIndex = context.XyToIndex(64, 0, out isInside);
Assert.True(isInside);
Assert.Equal(2u, charIndex);
charIndex = context.XyToIndex(89, 0, out isInside);
Assert.True(isInside);
Assert.Equal(3u, charIndex);
}
public void ShouldGetCorrectOutline()
{
ITextContext textContext = new TypographyTextContext(
"0123456", FontFile, 36,
FontStretch.Normal, FontStyle.Normal, FontWeight.Normal,
1000, 100,
TextAlignment.Leading);
// prepare debug contexts
{
surface = new Cairo.ImageSurface(Cairo.Format.Argb32, 2000, 2000);
g = new Cairo.Context(surface);
g.SetSourceRGBA(1, 1, 1, 1);
g.Paint();
g.SetSourceRGBA(0, 0, 0, 1);
g.LineWidth = 1;
}
// build path
CairoPathBuilder cairoPathBuilder;
{
cairoPathBuilder = new CairoPathBuilder(g, 0, 0, 1);
textContext.Build(Point.Zero, cairoPathBuilder);
}
// show debug results
// image
{
surface.WriteToPng(PathImagePath);
g.Dispose();
Assert.False(PathImagePath.Contains(" "));
// open the image in Windows Photo Viewer
Process.Start(@"C:\WINDOWS\System32\rundll32.exe", @"""C:\Program Files\Windows Photo Viewer\PhotoViewer.dll"", ImageView_Fullscreen " + PathImagePath);
}
//text
{
var text = cairoPathBuilder.Result;
File.WriteAllText(PathTextPath, text);
Process.Start(@"notepad", PathTextPath);
}
// Now, check if the output text and image shows a right outline of the text.
}
public void Setup(int canvasW, int canvasH)
{
//--------------------------------------
//TODO: review here again
DrawingGL.Text.Utility.SetLoadFontDel(
fontfile =>
{
return(null);
});
//--------------------------------------
simpleCanvas = new SimpleCanvas(canvasW, canvasH);
var text = "Typography";
//optional ....
//var directory = AndroidOS.Environment.ExternalStorageDirectory;
//var fullFileName = Path.Combine(directory.ToString(), "TypographyTest.txt");
//if (File.Exists(fullFileName))
//{
// text = File.ReadAllText(fullFileName);
//}
//--------------------------------------------------------------------------
//we want to create a prepared visual object ***
textContext = new TypographyTextContext()
{
FontFamily = "DroidSans.ttf", //corresponding to font file Assets/DroidSans.ttf
FontSize = 64, //size in Points
FontStretch = FontStretch.Normal,
FontStyle = FontStyle.Normal,
FontWeight = FontWeight.Normal,
Alignment = DrawingGL.Text.TextAlignment.Leading
};
//--------------------------------------------------------------------------
//create blank text run
textRun = new TextRun();
//generate glyph run inside text text run
textContext.GenerateGlyphRuns(textRun, text);
//--------------------------------------------------------------------------
}
public void ShouldGetARightMeshFromTypography()
{
var style = GUIStyle.Default;
style.Set <double>(GUIStyleName.FontSize, 8);
var state = GUIState.Normal;
var fontFamily = style.Get <string>(GUIStyleName.FontFamily, state);
var fontSize = style.Get <double>(GUIStyleName.FontSize, state);
var fontStretch = (FontStretch)style.Get <int>(GUIStyleName.FontStretch, state);
var fontStyle = (FontStyle)style.Get <int>(GUIStyleName.FontStyle, state);
var fontWeight = (FontWeight)style.Get <int>(GUIStyleName.FontWeight, state);
var textAlignment = (TextAlignment)style.Get <int>(GUIStyleName.TextAlignment, state);
var rect = new Rect(0, 0, 200, 200);
var textContext = new TypographyTextContext(
"8",
fontFamily, (int)fontSize, fontStretch, fontStyle, fontWeight,
(int)Math.Ceiling(rect.Size.Width), (int)Math.Ceiling(rect.Size.Height),
textAlignment);
var textMesh = new TextMesh();
textMesh.Build(new Point(0, fontSize), style, textContext);
//PathUtil.SaveToPng(paths, @"D:\TypographyTextPath.png");
DrawList drawList = new DrawList();
drawList.Append(textMesh, Vector.Zero);
var objFilePath = "D:\\TextRenderingTest_ShouldGetARightMeshFromTypography.obj";
Utility.SaveToObjFile(objFilePath, drawList.DrawBuffer.VertexBuffer, drawList.DrawBuffer.IndexBuffer);
Process.Start(ModelViewerPath, objFilePath);
}
public void ShouldGetARightMeshAfterAppendingATextMesh()
{
var style = GUIStyle.Default;
style.Set <double>(GUIStyleName.FontSize, 36);
var state = GUIState.Normal;
var fontFamily = style.Get <string>(GUIStyleName.FontFamily, state);
var fontSize = style.Get <double>(GUIStyleName.FontSize, state);
var fontStretch = (FontStretch)style.Get <int>(GUIStyleName.FontStretch, state);
var fontStyle = (FontStyle)style.Get <int>(GUIStyleName.FontStyle, state);
var fontWeight = (FontWeight)style.Get <int>(GUIStyleName.FontWeight, state);
var textAlignment = (TextAlignment)style.Get <int>(GUIStyleName.TextAlignment, state);
var rect = new Rect(0, 0, 200, 200);
var textContext = new TypographyTextContext(
"A",
fontFamily, (int)fontSize, fontStretch, fontStyle, fontWeight,
(int)Math.Ceiling(rect.Size.Width), (int)Math.Ceiling(rect.Size.Height),
textAlignment);
var textMesh = new TextMesh();
textMesh.Build(Point.Zero, style, textContext);
var anotherTextContext = new TypographyTextContext(
"auto-sized",
fontFamily, (int)fontSize, fontStretch, fontStyle, fontWeight,
(int)Math.Ceiling(rect.Size.Width), (int)Math.Ceiling(rect.Size.Height),
textAlignment);
var anotherTextMesh = new TextMesh();
anotherTextMesh.Build(new Point(50, 100), style, anotherTextContext);
DrawList drawList = new DrawList();
var expectedVertexCount = 0;
var expectedIndexCount = 0;
drawList.AddRectFilled(Point.Zero, new Point(200, 100), Color.Metal);
expectedVertexCount += 4;
expectedIndexCount += 6;
Assert.Equal(drawList.DrawBuffer.VertexBuffer.Count, expectedVertexCount);
Assert.Equal(drawList.DrawBuffer.IndexBuffer.Count, expectedIndexCount);
drawList.Append(textMesh, Vector.Zero);
expectedVertexCount += textMesh.VertexBuffer.Count;
expectedIndexCount += textMesh.IndexBuffer.Count;
Assert.Equal(drawList.DrawBuffer.VertexBuffer.Count, expectedVertexCount);
Assert.Equal(drawList.DrawBuffer.IndexBuffer.Count, expectedIndexCount);
drawList.AddRectFilled(new Point(0, 110), new Point(200, 150), Color.Metal);
expectedVertexCount += 4;
expectedIndexCount += 6;
Assert.Equal(drawList.DrawBuffer.VertexBuffer.Count, expectedVertexCount);
Assert.Equal(drawList.DrawBuffer.IndexBuffer.Count, expectedIndexCount);
drawList.AddRectFilled(new Point(0, 160), new Point(200, 200), Color.Metal);
expectedVertexCount += 4;
expectedIndexCount += 6;
Assert.Equal(drawList.DrawBuffer.VertexBuffer.Count, expectedVertexCount);
Assert.Equal(drawList.DrawBuffer.IndexBuffer.Count, expectedIndexCount);
drawList.Append(anotherTextMesh, Vector.Zero);
expectedVertexCount += anotherTextMesh.VertexBuffer.Count;
expectedIndexCount += anotherTextMesh.IndexBuffer.Count;
Assert.Equal(drawList.DrawBuffer.VertexBuffer.Count, expectedVertexCount);
Assert.Equal(drawList.DrawBuffer.IndexBuffer.Count, expectedIndexCount);
var objFilePath = "D:\\Typography_ShouldGetARightMeshAfterAppendingATextMesh.obj";
Utility.SaveToObjFile(objFilePath, drawList.DrawBuffer.VertexBuffer, drawList.DrawBuffer.IndexBuffer);
Process.Start(ModelViewerPath, objFilePath);
}
