private void DrawString(object sender, EventArgs e)
{
if (string.IsNullOrEmpty(TextInput.Text) || string.IsNullOrWhiteSpace(TextInput.Text))
{
return;
}
if (FontStretchInput.SelectedItem == null || FontStyleInput.SelectedItem == null || FontWeightInput.SelectedItem == null)
{
DiagnosticsTextBox.AppendText("You must select the font stretch, style, and weight\n");
return;
}
TextProperties textProps = new TextProperties
{
FontBidiLevel = 0,
FontEmSize = (float)FontSizeInput.Value,
FontName = FontInput.SelectedItem.ToString(),
FontStretch = (DWRITE_FONT_STRETCH)Enum.Parse(typeof(DWRITE_FONT_STRETCH), FontStretchInput.SelectedItem.ToString()),
FontStyle = (DWRITE_FONT_STYLE)Enum.Parse(typeof(DWRITE_FONT_STYLE), FontStyleInput.SelectedItem.ToString()),
FontWeight = (DWRITE_FONT_WEIGHT)Enum.Parse(typeof(DWRITE_FONT_WEIGHT), FontWeightInput.SelectedItem.ToString())
};
Status = TextRenderer.SetTextProperties(ref textProps, out bool fontExists);
if (Status < 0)
{
DiagnosticsTextBox.AppendText($"SetTextProperties failed with status {Status}\n");
return;
}
if (!fontExists)
{
DiagnosticsTextBox.AppendText($"The requested font ({textProps.FontName}) is not available\n");
return;
}
D2D1_RECT_F boundingRect = new D2D1_RECT_F
{
Left = 0,
Top = 0,
Right = 500,
Bottom = 500
};
Status = TextRenderer.GetRenderedTextInformation("abcedfghijklmnopqrstuvwxyz", ref boundingRect, out RenderedTextInformation textInformation);
if (Status < 0)
{
DiagnosticsTextBox.AppendText($"GetRenderedTextInformation failed with status {Status}\n");
return;
}
DiagnosticsTextBox.Clear();
DiagnosticsTextBox.AppendText($"MaxGlyphsPerLine: {textInformation.MaxGlyphsPerLine}\n");
DiagnosticsTextBox.AppendText($"MaxLines: {textInformation.MaxLines}\n");
Bitmap bmp = new Bitmap(_imageProps.ImageHeight, _imageProps.ImageWidth, PixelFormat.Format32bppArgb);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Height, bmp.Width), ImageLockMode.ReadWrite, bmp.PixelFormat);
Stopwatch watch = new Stopwatch();
watch.Start();
Status = TextRenderer.RenderString(TextInput.Text, TextInput.Text.Length, ref boundingRect, true, DrawRectanglesInput.Checked, bmpData.Scan0, out IntPtr boundingBoxesPtr, out int boundingBoxesCount);
watch.Stop();
bmp.UnlockBits(bmpData);
if (Status < 0)
{
DiagnosticsTextBox.AppendText($"RenderString failed with status {Status}\n");
return;
}
DiagnosticsTextBox.AppendText(string.Format("Render time: {0:0.##}ms\n", watch.Elapsed.TotalMilliseconds));
DiagnosticsTextBox.AppendText("Bounding boxes count: " + boundingBoxesCount + "\n");
int boxPtrOffset = 0;
for (int i = 0; i < boundingBoxesCount; i++)
{
D2D1_RECT_F box = Marshal.PtrToStructure <D2D1_RECT_F>(boundingBoxesPtr + boxPtrOffset);
boxPtrOffset += Marshal.SizeOf <D2D1_RECT_F>();
DiagnosticsTextBox.AppendText($"{{{box.Left}, {box.Top}, {box.Right}, {box.Bottom}}}\n");
}
TextRenderer.DeleteArray(boundingBoxesPtr);
RenderBox.Image = bmp;
}
public static extern int GetRenderedTextInformation([MarshalAs(UnmanagedType.LPWStr)] string charSet, ref D2D1_RECT_F pTextBounds, out RenderedTextInformation pTextInformation);
public static extern int RenderString([MarshalAs(UnmanagedType.LPWStr)] string str, int strLen, ref D2D1_RECT_F pTextBounds, bool clearBackground, bool drawBoundingBoxes, IntPtr pImageBuffer, out IntPtr ppOutBoundingBoxes, out int boundingBoxesCount);
public void RenderTest()
{
try
{
int hres = TextRenderer.Initialize();
if (hres < 0)
{
throw new Exception("Init function failed with code " + hres);
}
ImageProperties imageProps = new ImageProperties
{
ImageHeight = 500,
ImageWidth = 500,
BitsPerPixel = 32,
WICPixelFormat = GUID.WICPixelFormat32bppRGBA
};
hres = TextRenderer.SetImageProperties(ref imageProps);
if (hres < 0)
{
throw new Exception("SetImageSize function failed with code " + hres);
}
string[] approvedFonts = File.ReadAllLines(@"D:\Programing Stuff\Mixed Projects\RedOrc\UnmanagedCodeTest\bin\Debug\ApprovedFonts.txt");
FontFamily[] fonts = new FontFamily[approvedFonts.Length];
for (int i = 0; i < fonts.Length; i++)
{
fonts[i] = new FontFamily(approvedFonts[i]);
}
foreach (FontFamily font in fonts)
{
TextProperties textProps = new TextProperties
{
FontBidiLevel = 0,
FontEmSize = 56,
FontName = font.Name,
FontStretch = DWRITE_FONT_STRETCH.DWRITE_FONT_STRETCH_NORMAL,
FontStyle = DWRITE_FONT_STYLE.DWRITE_FONT_STYLE_NORMAL,
FontWeight = DWRITE_FONT_WEIGHT.DWRITE_FONT_WEIGHT_NORMAL
};
hres = TextRenderer.SetTextProperties(ref textProps, out bool fontExists);
if (hres < 0)
{
throw new Exception("SetTextProperties function failed with code " + hres);
}
if (!fontExists)
{
continue;
}
D2D1_RECT_F boundingRect = new D2D1_RECT_F
{
Left = 0,
Top = 0,
Right = 500,
Bottom = 500
};
TextRenderer.GetRenderedTextInformation("abcedfghijklmnopqrstuvwxyz", ref boundingRect, out RenderedTextInformation textInformation);
Bitmap bmp = new Bitmap(imageProps.ImageHeight, imageProps.ImageWidth, PixelFormat.Format32bppArgb);
BitmapData bmpData = bmp.LockBits(new Rectangle(0, 0, bmp.Height, bmp.Width), ImageLockMode.ReadWrite, bmp.PixelFormat);
string text = "This is a very loooooooooooooong tessssssssssssst string";
hres = TextRenderer.RenderString(text, text.Length, ref boundingRect, true, true, bmpData.Scan0, out IntPtr boundingBoxesPtr, out int boundingBoxesCount);
if (hres < 0)
{
throw new Exception("RenderString function failed with code " + hres);
}
TextRenderer.DeleteArray(boundingBoxesPtr);
bmp.UnlockBits(bmpData);
//FontApprovalForm form = new FontApprovalForm(bmp, font.Name);
//form.ShowDialog();
//if (form.Approved)
//{
bmp.Save("Renders\\" + textProps.FontName + ".png");
//}
}
}
catch (Exception e)
{
Assert.Fail(e.Message);
}
finally
{
TextRenderer.Uninitialize();
}
}
