public static RenderTargetBitmap DrawText(this BitmapSource source, string[] text, DrawTextFormat textFormat)
{
var drawingVisual = new DrawingVisual();
var drawingContext = drawingVisual.RenderOpen();
drawingContext.DrawImage(source, new Rect(0, 0, source.PixelWidth, source.PixelHeight));
if (textFormat.ResizeOverflow == true)
{
textFormat.Size = AdjustFontSize(source, text, textFormat.Typeface, textFormat.Size, textFormat.Fill);
}
for (var i = 0; i < text.Length; i++)
{
var formatText = new FormattedText(text[i],
new CultureInfo("en-us"),
FlowDirection.LeftToRight,
textFormat.Typeface,
textFormat.Size,
new SolidColorBrush(textFormat.Fill),
source.DpiX / source.DpiY);
var position = textFormat.Centered == true ? new Point((source.Width - formatText.Width) / 2 + textFormat.Adjusted.X, textFormat.Default.Y + textFormat.Adjusted.Y + i * formatText.Height) : new Point(textFormat.Default.X + textFormat.Adjusted.X, textFormat.Default.Y + textFormat.Adjusted.Y + i * formatText.Height);
if (textFormat.Background == true)
{
var rect = new Rect(new Point(0, (int)(textFormat.Default.Y + textFormat.Adjusted.Y + i * formatText.Height)), new Size(source.PixelWidth, formatText.Height));
drawingContext.DrawRectangle(new SolidColorBrush(textFormat.BackgroundColor ?? Colors.Transparent), new Pen(new SolidColorBrush(textFormat.BackgroundColor ?? Colors.Transparent), 1), rect);
}
RenderTextInformation(source, textFormat, drawingContext, formatText, position);
}
drawingContext.Close();
var bmp = new RenderTargetBitmap(source.PixelWidth, source.PixelHeight, source.DpiX, source.DpiY, PixelFormats.Pbgra32);
bmp.Render(drawingVisual);
return(bmp);
}
public void RenderFrames()
{
if (_parent.font_size.Value == null || _parent.title_shift_h.Value == null || _parent.title_shift_v.Value == null)
{
return;
}
var fmt = DrawTextFormat.Make((CropControl.TglTextOverrideTF.IsChecked == true ? CropControl.Typeface : _parent.Typeface),
(double)(CropControl.TglTextOverride.IsChecked == true ? CropControl.ov_font_size.Value ?? _parent.font_size.Value : _parent.font_size.Value),
((SolidColorBrush)_parent.fore_title_color_box.Fill).Color,
_parent.chkb_bkg_title.IsChecked,
_parent.chkb_otln.IsChecked,
_parent.chkb_drpshdw.IsChecked,
_parent.chkb_centering.IsChecked,
true,
new Point((double)_parent.title_shift_h.Value, (double)_parent.title_shift_v.Value),
backgroundColor: ((SolidColorBrush)_parent.bkg_title_color_box.Fill).Color);
BitmapSource titleFrame;
BitmapSource frame;
//attempt resize without stretching
switch (CropControl.ImageCrop.SelectedIndex)
{
case 1:
frame = _source.ResizedImage(_frame.Width, _frame.Height);
break;
case 2:
frame = _source.ScaledCrop(_frame.Width, _frame.Height, CropControl.ImageScale, CropControl.CropX.Value,
CropControl.CropY.Value);
break;
default:
frame = _source.ResizeImageAndRatio(_frame.Width, _frame.Height, (int)CropControl.WidthAdjustment,
(int)CropControl.HeightAdjustment, CropControl.ImageScale);
break;
}
if (frame == null)
{
System.Windows.MessageBox.Show(
"Image adjustments could not be made as the values given would cause errors in positioning.");
return;
}
//force stretch to conform sizing
if (frame.PixelWidth != _frame.Width || frame.PixelHeight != _frame.Height)
{
frame = frame.ResizedImage(_frame.Width, _frame.Height);
}
if (_parent.text_title.LineCount > 1)
{
string[] lines = new string[_parent.text_title.LineCount];
for (int i = 0; i < _parent.text_title.LineCount; i++)
{
lines[i] = _parent.text_title.GetLineText(i);
}
titleFrame = frame.DrawText(lines, fmt);
}
else
{
titleFrame = frame.DrawText(_parent.text_title.Text, fmt);
}
if (_parent.logo_file.Source != null)
{
double scale = ((double)(_parent.logo_scale.Value ?? 1) / 100);
if (Math.Abs(scale) < 0.001)
{
scale = 1;
}
double sWidth = _parent.logo_file.Source.Width * scale;
double sHeight = _parent.logo_file.Source.Height * scale;
BitmapSource scaledLogo = ((BitmapSource)_parent.logo_file.Source).ResizedImage((int)sWidth, (int)sHeight);
if (scaledLogo.PixelWidth > _frame.Width || scaledLogo.PixelHeight > _frame.Height)
{
scaledLogo = scaledLogo.ScaleImage(_frame.Width, _frame.Height);
}
double pointX = (_frame.Width - scaledLogo.PixelWidth) / 2 + (_parent.logo_shift_w.Value ?? 0);
double pointY = (_frame.Height - scaledLogo.PixelHeight) / 2 + (_parent.logo_shift_h.Value ?? 0);
frame = frame.DrawImage(scaledLogo, new Point(pointX, pointY));
titleFrame = titleFrame.DrawImage(scaledLogo, new Point(pointX, pointY));
}
if (_parent.banner_file.Source != null)
{
BitmapSource scaledBanner = ((BitmapSource)_parent.banner_file.Source).ScaleImage(_frame.Width, _frame.Height);
titleFrame = titleFrame.DrawImage(scaledBanner, new Point(0, titleFrame.Height - scaledBanner.Height));
}
KeyImage.Source = frame;
TitleImage.Source = titleFrame;
}
private static void RenderTextInformation(this BitmapSource source, DrawTextFormat textFormat, DrawingContext drawingContext, FormattedText formatText, Point position)
{
var shadow = Color.FromArgb(125, 0, 0, 0);
switch (textFormat.DropShadow)
{
case true when textFormat.Outline == true:
{
const int distance = 2;
for (var offset = 1; 0 <= offset; offset--)
{
var point = new Point()
{
X = position.X + offset * distance,
Y = position.Y + offset * distance
};
var geo = formatText.BuildGeometry(point);
drawingContext.DrawGeometry(new SolidColorBrush(offset < 1 ? textFormat.Fill : shadow), new Pen(new SolidColorBrush(textFormat.Edge ?? shadow), 2), geo);
}
break;
}
case true:
{
const int distance = 2;
var shadowText = new FormattedText(formatText.Text,
new CultureInfo("en-us"),
FlowDirection.LeftToRight,
textFormat.Typeface,
textFormat.Size,
new SolidColorBrush(shadow),
source.DpiX / source.DpiY);
for (var offset = 1; 0 <= offset; offset--)
{
var point = new Point()
{
X = position.X + offset * distance,
Y = position.Y + offset * distance
};
drawingContext.DrawText(offset < 1 ? formatText : shadowText, point);
}
break;
}
default:
{
if (textFormat.Outline == true)
{
var geo = formatText.BuildGeometry(position);
drawingContext.DrawGeometry(new SolidColorBrush(textFormat.Fill), new Pen(new SolidColorBrush(textFormat.Edge ?? Colors.Black), 2), geo);
}
else
{
drawingContext.DrawText(formatText, position);
}
break;
}
}
}
