diff options
Diffstat (limited to 'src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs')
| -rw-r--r-- | src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs | 83 |
1 files changed, 42 insertions, 41 deletions
diff --git a/src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs b/src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs index b0c9c0b3c..64c33d5c2 100644 --- a/src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs +++ b/src/Jellyfin.Drawing.Skia/StripCollageBuilder.cs @@ -109,36 +109,33 @@ public partial class StripCollageBuilder // resize to the same aspect as the original var backdropHeight = Math.Abs(width * backdrop.Height / backdrop.Width); - using var residedBackdrop = SkiaEncoder.ResizeImage(backdrop, new SKImageInfo(width, backdropHeight, backdrop.ColorType, backdrop.AlphaType, backdrop.ColorSpace)); + using var resizedBackdrop = SkiaEncoder.ResizeImage(backdrop, new SKImageInfo(width, backdropHeight, backdrop.ColorType, backdrop.AlphaType, backdrop.ColorSpace)); + using var paint = new SKPaint(); // draw the backdrop - canvas.DrawImage(residedBackdrop, 0, 0); + canvas.DrawImage(resizedBackdrop, 0, 0, SkiaEncoder.DefaultSamplingOptions, paint); // draw shadow rectangle - using var paintColor = new SKPaint - { - Color = SKColors.Black.WithAlpha(0x78), - Style = SKPaintStyle.Fill - }; + using var paintColor = new SKPaint(); + paintColor.Color = SKColors.Black.WithAlpha(0x78); + paintColor.Style = SKPaintStyle.Fill; canvas.DrawRect(0, 0, width, height, paintColor); var typeFace = SkiaEncoder.DefaultTypeFace; // draw library name - using var textPaint = new SKPaint - { - Color = SKColors.White, - Style = SKPaintStyle.Fill, - TextSize = 112, - TextAlign = SKTextAlign.Left, - Typeface = typeFace, - IsAntialias = true - }; + using var textFont = new SKFont(); + textFont.Size = 112; + textFont.Typeface = typeFace; + using var textPaint = new SKPaint(); + textPaint.Color = SKColors.White; + textPaint.Style = SKPaintStyle.Fill; + textPaint.IsAntialias = true; // scale down text to 90% of the width if text is larger than 95% of the width - var textWidth = textPaint.MeasureText(libraryName); + var textWidth = textFont.MeasureText(libraryName); if (textWidth > width * 0.95) { - textPaint.TextSize = 0.9f * width * textPaint.TextSize / textWidth; + textFont.Size = 0.9f * width * textFont.Size / textWidth; } if (string.IsNullOrWhiteSpace(libraryName)) @@ -146,23 +143,22 @@ public partial class StripCollageBuilder return bitmap; } - var realWidth = DrawText(null, 0, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), libraryName, textPaint); + var realWidth = DrawText(null, 0, (height / 2f) + (textFont.Metrics.XHeight / 2), libraryName, textPaint, textFont); if (realWidth > width * 0.95) { - textPaint.TextSize = 0.9f * width * textPaint.TextSize / realWidth; - realWidth = DrawText(null, 0, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), libraryName, textPaint); + textFont.Size = 0.9f * width * textFont.Size / realWidth; + realWidth = DrawText(null, 0, (height / 2f) + (textFont.Metrics.XHeight / 2), libraryName, textPaint, textFont); } var padding = (width - realWidth) / 2; if (IsRtlTextRegex().IsMatch(libraryName)) { - textPaint.TextAlign = SKTextAlign.Right; - DrawText(canvas, width - padding, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), libraryName, textPaint, true); + DrawText(canvas, width - padding, (height / 2f) + (textFont.Metrics.XHeight / 2), libraryName, textPaint, textFont, true); } else { - DrawText(canvas, padding, (height / 2f) + (textPaint.FontMetrics.XHeight / 2), libraryName, textPaint); + DrawText(canvas, padding, (height / 2f) + (textFont.Metrics.XHeight / 2), libraryName, textPaint, textFont); } return bitmap; @@ -188,14 +184,15 @@ public partial class StripCollageBuilder continue; } - // Scale image. The FromBitmap creates a copy + // Scale image var imageInfo = new SKImageInfo(cellWidth, cellHeight, currentBitmap.ColorType, currentBitmap.AlphaType, currentBitmap.ColorSpace); using var resizeImage = SkiaEncoder.ResizeImage(currentBitmap, imageInfo); + using var paint = new SKPaint(); // draw this image into the strip at the next position var xPos = x * cellWidth; var yPos = y * cellHeight; - canvas.DrawImage(resizeImage, xPos, yPos); + canvas.DrawImage(resizeImage, xPos, yPos, SkiaEncoder.DefaultSamplingOptions, paint); } } @@ -210,11 +207,13 @@ public partial class StripCollageBuilder /// <param name="y">y position of the canvas to draw text.</param> /// <param name="text">The text to draw.</param> /// <param name="textPaint">The SKPaint to style the text.</param> + /// <param name="textFont">The SKFont to style the text.</param> + /// <param name="alignment">The alignment of the text. Default aligns to left.</param> /// <returns>The width of the text.</returns> - private static float MeasureAndDrawText(SKCanvas? canvas, float x, float y, string text, SKPaint textPaint) + private static float MeasureAndDrawText(SKCanvas? canvas, float x, float y, string text, SKPaint textPaint, SKFont textFont, SKTextAlign alignment = SKTextAlign.Left) { - var width = textPaint.MeasureText(text); - canvas?.DrawShapedText(text, x, y, textPaint); + var width = textFont.MeasureText(text); + canvas?.DrawShapedText(text, x, y, alignment, textFont, textPaint); return width; } @@ -226,16 +225,18 @@ public partial class StripCollageBuilder /// <param name="y">y position of the canvas to draw text.</param> /// <param name="text">The text to draw.</param> /// <param name="textPaint">The SKPaint to style the text.</param> + /// <param name="textFont">The SKFont to style the text.</param> /// <param name="isRtl">If true, render from right to left.</param> /// <returns>The width of the text.</returns> - private static float DrawText(SKCanvas? canvas, float x, float y, string text, SKPaint textPaint, bool isRtl = false) + private static float DrawText(SKCanvas? canvas, float x, float y, string text, SKPaint textPaint, SKFont textFont, bool isRtl = false) { float width = 0; + var alignment = isRtl ? SKTextAlign.Right : SKTextAlign.Left; - if (textPaint.ContainsGlyphs(text)) + if (textFont.ContainsGlyphs(text)) { // Current font can render all characters in text - return MeasureAndDrawText(canvas, x, y, text, textPaint); + return MeasureAndDrawText(canvas, x, y, text, textPaint, textFont, alignment); } // Iterate over all text elements using TextElementEnumerator @@ -248,7 +249,7 @@ public partial class StripCollageBuilder { bool notAtEnd; var textElement = enumerator.GetTextElement(); - if (textPaint.ContainsGlyphs(textElement)) + if (textFont.ContainsGlyphs(textElement)) { continue; } @@ -258,12 +259,12 @@ public partial class StripCollageBuilder if (start != enumerator.ElementIndex) { var regularText = text.Substring(start, enumerator.ElementIndex - start); - width += MeasureAndDrawText(canvas, MoveX(x, width), y, regularText, textPaint); + width += MeasureAndDrawText(canvas, MoveX(x, width), y, regularText, textPaint, textFont, alignment); start = enumerator.ElementIndex; } // Search for next point where current font can render the character there - while ((notAtEnd = enumerator.MoveNext()) && !textPaint.ContainsGlyphs(enumerator.GetTextElement())) + while ((notAtEnd = enumerator.MoveNext()) && !textFont.ContainsGlyphs(enumerator.GetTextElement())) { // Do nothing, just move enumerator to the point where current font can render the character } @@ -278,21 +279,21 @@ public partial class StripCollageBuilder if (fallback is not null) { + using var fallbackTextFont = new SKFont(); + fallbackTextFont.Size = textFont.Size; + fallbackTextFont.Typeface = fallback; using var fallbackTextPaint = new SKPaint(); fallbackTextPaint.Color = textPaint.Color; fallbackTextPaint.Style = textPaint.Style; - fallbackTextPaint.TextSize = textPaint.TextSize; - fallbackTextPaint.TextAlign = textPaint.TextAlign; - fallbackTextPaint.Typeface = fallback; fallbackTextPaint.IsAntialias = textPaint.IsAntialias; // Do the search recursively to select all possible fonts - width += DrawText(canvas, MoveX(x, width), y, subtext, fallbackTextPaint, isRtl); + width += DrawText(canvas, MoveX(x, width), y, subtext, fallbackTextPaint, fallbackTextFont, isRtl); } else { // Used up all fonts and no fonts can be found, just use current font - width += MeasureAndDrawText(canvas, MoveX(x, width), y, text[start..], textPaint); + width += MeasureAndDrawText(canvas, MoveX(x, width), y, text[start..], textPaint, textFont, alignment); } start = notAtEnd ? enumerator.ElementIndex : text.Length; @@ -301,7 +302,7 @@ public partial class StripCollageBuilder // Render the remaining text that current fonts can render if (start < text.Length) { - width += MeasureAndDrawText(canvas, MoveX(x, width), y, text[start..], textPaint); + width += MeasureAndDrawText(canvas, MoveX(x, width), y, text[start..], textPaint, textFont, alignment); } return width; |