protected override void OnDrawing(UltravioletTime time)
{
var window = Ultraviolet.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
stringFormatter.Reset();
stringFormatter.AddArgument(songPlayer.Position.Minutes);
stringFormatter.AddArgument(songPlayer.Position.Seconds);
stringFormatter.AddArgument(songPlayer.Duration.Minutes);
stringFormatter.AddArgument(songPlayer.Duration.Seconds);
stringFormatter.Format("{0:pad:2}:{1:pad:2} / {2:pad:2}:{3:pad:2}", stringBuffer);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var attribution =
"|c:FFFFFF00|Now Playing|c|\n\n" +
"\"|c:FFFFFF00|Deep Haze|c|\" by Kevin MacLeod (incompetech.com)\n" +
"Licensed under Creative Commons: By Attribution 3.0\n" +
"|c:FF808080|http://creativecommons.org/licenses/by/3.0/|c|\n\n\n";
var settings = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
textRenderer.CalculateLayout(attribution, textLayoutCommands, settings);
textRenderer.Draw(spriteBatch, textLayoutCommands, Vector2.Zero, Color.White);
var timerSize = spriteFont.Regular.MeasureString(stringBuffer);
var timerPosition = new Vector2(
(Int32)(textLayoutCommands.Bounds.Left + ((textLayoutCommands.Bounds.Width - timerSize.Width) / 2f)),
(Int32)(textLayoutCommands.Bounds.Bottom - timerSize.Height));
spriteBatch.DrawString(spriteFont.Regular, stringBuffer, timerPosition, Color.White);
spriteBatch.End();
base.OnDrawing(time);
}
public void WriteLineInfo(TextLayoutCommandStream output,
Int32 lineWidth, Int32 lineHeight, Int32 lengthInCommands, Int32 lengthInGlyphs, Boolean terminatedByLineBreak, ref TextLayoutSettings settings)
{
var offset = 0;
if (settings.Width.HasValue)
{
if ((settings.Flags & TextFlags.AlignRight) == TextFlags.AlignRight)
offset = (settings.Width.Value - lineWidth);
else if ((settings.Flags & TextFlags.AlignCenter) == TextFlags.AlignCenter)
offset = (settings.Width.Value - lineWidth) / 2;
}
var outputStreamPosition = output.StreamPositionInObjects;
output.Seek(lineInfoCommandIndex);
unsafe
{
var ptr = (TextLayoutLineInfoCommand*)output.Data;
ptr->Offset = offset;
ptr->LineWidth = lineWidth;
ptr->LineHeight = lineHeight;
ptr->LengthInCommands = lengthInCommands;
ptr->LengthInGlyphs = lengthInGlyphs;
ptr->TerminatedByLineBreak = terminatedByLineBreak;
}
output.Seek(outputStreamPosition);
minLineOffset = (minLineOffset.HasValue) ? Math.Min(minLineOffset.Value, offset) : offset;
}
/// <summary>
/// Finalizes the layout by writing the block's metadata to the command stream.
/// </summary>
/// <param name="output">The <see cref="TextLayoutCommandStream"/> which is being populated.</param>
/// <param name="settings">The current layout settings.</param>
public void FinalizeLayout(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
if (LineHeightTentative > 0 || LineHeight > 0)
{
FinalizeLine(output, ref settings);
}
WriteBlockInfo(output, ActualWidth, ActualHeight, LineCount, ref settings);
output.Settings = settings;
output.Bounds = Bounds;
output.ActualWidth = ActualWidth;
output.ActualHeight = ActualHeight;
output.TotalLength = TotalLength;
output.LineCount = LineCount;
if (!settings.Width.HasValue)
{
if ((settings.Flags & TextFlags.AlignCenter) == TextFlags.AlignCenter ||
(settings.Flags & TextFlags.AlignRight) == TextFlags.AlignRight)
{
FixHorizontalAlignmentForUnconstrainedLayout(output, ref settings);
}
}
}
/// <summary>
/// Gets the currently active font.
/// </summary>
private SpriteFont GetCurrentFont(ref TextLayoutSettings settings, Boolean bold, Boolean italic, out SpriteFontFace face)
{
var font = (fontStack.Count == 0) ? settings.Font : fontStack.Peek().Value;
face = font.GetFace(bold, italic);
return(font);
}
/// <summary>
/// Finalizes the current line by writing the line's metadata to the command stream and resetting
/// state values which are associated with the current line.
/// </summary>
/// <param name="output">The <see cref="TextLayoutCommandStream"/> which is being populated.</param>
/// <param name="settings">The current layout settings.</param>
public void FinalizeLine(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
if (lineHeight == 0)
{
lineHeight = lineHeightTentative;
}
WriteLineInfo(output, lineWidth, lineHeight, lineLengthInCommands, lineLengthInText, lineIsTerminatedByLineBreak, ref settings);
positionX = 0;
positionY += lineHeight;
actualWidth = Math.Max(actualWidth, lineWidth);
actualHeight += lineHeight;
lineCount++;
lineWidth = 0;
lineHeight = 0;
lineHeightTentative = 0;
lineLengthInText = 0;
lineLengthInCommands = 0;
lineInfoCommandIndex = output.Count;
lineBreakCommand = null;
lineBreakOffset = null;
lineIsTerminatedByLineBreak = false;
brokenTextSizeBeforeBreak = null;
brokenTextSizeAfterBreak = null;
}
protected override void OnDrawingForeground(UltravioletTime time, SpriteBatch spriteBatch)
{
spriteBatch.Draw(blankTexture, new RectangleF(64, 64, Width - 128, Height - 128), Color.Black * 0.75f * TransitionPosition);
var settings = new TextLayoutSettings(font, Width, Height, TextFlags.AlignCenter | TextFlags.AlignMiddle);
textRenderer.Draw(spriteBatch, "Welcome to the game!", Vector2.Zero, Color.White * TransitionPosition, settings);
base.OnDrawingForeground(time, spriteBatch);
}
public void DrawObject(SpriteBatch batch, bool debug = false, TextRenderer rend = null, TextLayoutSettings settings = new TextLayoutSettings())
{
if(debug)
{
if (rend != null)
{
rend.Draw(batch, "yo", body2D.GetPosition().ToScreenVector(), TwistedLogik.Ultraviolet.Color.Gold, settings);
}
else
{
Console.WriteLine("Hey yo you didn't give me a TextRenderer");
}
}
}
protected override void OnDrawingForeground(UltravioletTime time, SpriteBatch spriteBatch)
{
spriteBatch.Draw(blankTexture, new RectangleF(0, 0, Width, Height), new Color(180, 0, 0));
#if ANDROID || IOS
var text = "This is SampleScreen1\nTap to open SampleScreen2";
#else
var text = "This is SampleScreen1\nPress right arrow key to open SampleScreen2";
#endif
var settings = new TextLayoutSettings(font, Width, Height, TextFlags.AlignCenter | TextFlags.AlignMiddle);
textRenderer.Draw(spriteBatch, text, Vector2.Zero, Color.White * TransitionPosition, settings);
base.OnDrawingForeground(time, spriteBatch);
}
protected override void OnDrawingForeground(UltravioletTime time, SpriteBatch spriteBatch)
{
var offset = GetScreenOffset();
spriteBatch.Draw(blankTexture, new RectangleF(offset, 0, Width, Height), new Color(0, 0, 180));
#if ANDROID
var text = "This is SampleScreen2\nTap to open SampleScreen1";
#else
var text = "This is SampleScreen2\nPress left arrow key to open SampleScreen1";
#endif
var settings = new TextLayoutSettings(font, Width, Height, TextFlags.AlignCenter | TextFlags.AlignMiddle);
textRenderer.Draw(spriteBatch, text, new Vector2(offset, 0), Color.White, settings);
base.OnDrawingForeground(time, spriteBatch);
}
public void WriteBlockInfo(TextLayoutCommandStream output, Int32 blockWidth, Int32 blockHeight, Int32 lengthInLines, ref TextLayoutSettings settings)
{
var offset = 0;
if (settings.Height.HasValue)
{
if ((settings.Flags & TextFlags.AlignBottom) == TextFlags.AlignBottom)
offset = (settings.Height.Value - blockHeight);
else if ((settings.Flags & TextFlags.AlignMiddle) == TextFlags.AlignMiddle)
offset = (settings.Height.Value - blockHeight) / 2;
}
output.Seek(0);
unsafe
{
var ptr = (TextLayoutBlockInfoCommand*)output.Data;
ptr->Offset = offset;
ptr->LengthInLines = lengthInLines;
}
output.Seek(output.Count);
minBlockOffset = (minBlockOffset.HasValue) ? Math.Min(minBlockOffset.Value, offset) : offset;
}
private void DrawAlignedText()
{
var window = Ultraviolet.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
var settingsTopLeft = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignTop | TextFlags.AlignLeft);
textRenderer.Draw(spriteBatch, "Aligned top left", Vector2.Zero, Color.White, settingsTopLeft);
var settingsTopCenter = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignTop | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, "Aligned top center", Vector2.Zero, Color.White, settingsTopCenter);
var settingsTopRight = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignTop | TextFlags.AlignRight);
textRenderer.Draw(spriteBatch, "Aligned top right", Vector2.Zero, Color.White, settingsTopRight);
var settingsBottomLeft = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignBottom | TextFlags.AlignLeft);
textRenderer.Draw(spriteBatch, "Aligned bottom left", Vector2.Zero, Color.White, settingsBottomLeft);
var settingsBottomCenter = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignBottom | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, "Aligned bottom center", Vector2.Zero, Color.White, settingsBottomCenter);
var settingsBottomRight = new TextLayoutSettings(spriteFontSegoe, width, height, TextFlags.AlignBottom | TextFlags.AlignRight);
textRenderer.Draw(spriteBatch, "Aligned bottom right", Vector2.Zero, Color.White, settingsBottomRight);
}
/// <summary>
/// Gets the currently active font.
/// </summary>
private SpriteFont GetCurrentFont(ref TextLayoutSettings settings, Boolean bold, Boolean italic, out SpriteFontFace face)
{
var font = (fontStack.Count == 0) ? settings.Font : fontStack.Peek().Value;
face = font.GetFace(bold, italic);
return font;
}
/// <summary>
/// Advances the layout state to the next line of text.
/// </summary>
/// <param name="output">The <see cref="TextLayoutCommandStream"/> which is being populated.</param>
/// <param name="settings">The current layout settings.</param>
public void AdvanceLayoutToNextLine(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
FinalizeLine(output, ref settings);
output.WriteLineInfo();
}
/// <summary>
/// If the layout has an initial style defined, this method modifies the layout stacks to reflect it.
/// </summary>
private void PrepareInitialStyle(TextLayoutCommandStream output, ref Boolean bold, ref Boolean italic, ref TextLayoutSettings settings)
{
if (settings.InitialLayoutStyle == null)
{
return;
}
var initialStyle = default(TextStyle);
var initialStyleIndex = RegisterStyleWithCommandStream(output, settings.InitialLayoutStyle, out initialStyle);
output.WritePushStyle(new TextLayoutStyleCommand(initialStyleIndex));
PushStyle(initialStyle, ref bold, ref italic);
}
private unsafe void FixHorizontalAlignmentForUnconstrainedLayout(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
output.Seek(0);
while (output.SeekNextLine())
{
var lineInfo = (TextLayoutLineInfoCommand*)output.InternalObjectStream.Data;
if ((settings.Flags & TextFlags.AlignRight) == TextFlags.AlignRight)
lineInfo->Offset = (output.ActualWidth - lineInfo->LineWidth);
else if ((settings.Flags & TextFlags.AlignCenter) == TextFlags.AlignCenter)
lineInfo->Offset = (output.ActualWidth - lineInfo->LineWidth) / 2;
}
}
public void TextRenderer_CanAlignTextWithinAnArea()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/SegoeUI");
textRenderer = new TextRenderer();
})
.Render(uv =>
{
var window = uv.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settingsTopLeft = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignTop | TextFlags.AlignLeft);
textRenderer.Draw(spriteBatch, "Aligned top left", Vector2.Zero, Color.White, settingsTopLeft);
var settingsTopCenter = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignTop | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, "Aligned top center", Vector2.Zero, Color.White, settingsTopCenter);
var settingsTopRight = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignTop | TextFlags.AlignRight);
textRenderer.Draw(spriteBatch, "Aligned top right", Vector2.Zero, Color.White, settingsTopRight);
var settingsMiddleLeft = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignLeft);
textRenderer.Draw(spriteBatch, "Aligned middle left", Vector2.Zero, Color.White, settingsMiddleLeft);
var settingsMiddleCenter = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, "Aligned middle center", Vector2.Zero, Color.White, settingsMiddleCenter);
var settingsMiddleRight = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignRight);
textRenderer.Draw(spriteBatch, "Aligned middle right", Vector2.Zero, Color.White, settingsMiddleRight);
var settingsBottomLeft = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignBottom | TextFlags.AlignLeft);
textRenderer.Draw(spriteBatch, "Aligned bottom left", Vector2.Zero, Color.White, settingsBottomLeft);
var settingsBottomCenter = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignBottom | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, "Aligned bottom center", Vector2.Zero, Color.White, settingsBottomCenter);
var settingsBottomRight = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignBottom | TextFlags.AlignRight);
textRenderer.Draw(spriteBatch, "Aligned bottom right", Vector2.Zero, Color.White, settingsBottomRight);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources\Expected\Graphics\Graphics2D\Text\TextRenderer_CanAlignTextWithinAnArea.png");
}
public void TextRenderer_CanRenderColoredStrings()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/SegoeUI");
textRenderer = new TextRenderer();
})
.Render(uv =>
{
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settings = new TextLayoutSettings(spriteFont, null, null, TextFlags.Standard);
textRenderer.Draw(spriteBatch, "Hello, |c:FFFF0000|world|c|! This is a |c:FF00FF00|colored|c| |c:FF0000FF|string|c|!", Vector2.Zero, Color.White, settings);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources\Expected\Graphics\Graphics2D\Text\TextRenderer_CanRenderColoredStrings.png");
}
public void WriteLineInfo(TextLayoutCommandStream output,
Int32 lineWidth, Int32 lineHeight, Int32 lengthInCommands, Int32 lengthInGlyphs, Boolean terminatedByLineBreak, ref TextLayoutSettings settings)
{
var offset = 0;
if (settings.Width.HasValue)
{
if ((settings.Flags & TextFlags.AlignRight) == TextFlags.AlignRight)
{
offset = (settings.Width.Value - lineWidth);
}
else if ((settings.Flags & TextFlags.AlignCenter) == TextFlags.AlignCenter)
{
offset = (settings.Width.Value - lineWidth) / 2;
}
}
var outputStreamPosition = output.StreamPositionInObjects;
output.Seek(lineInfoCommandIndex);
unsafe
{
var ptr = (TextLayoutLineInfoCommand *)output.Data;
ptr->Offset = offset;
ptr->LineWidth = lineWidth;
ptr->LineHeight = lineHeight;
ptr->LengthInCommands = lengthInCommands;
ptr->LengthInGlyphs = lengthInGlyphs;
ptr->TerminatedByLineBreak = terminatedByLineBreak;
}
output.Seek(outputStreamPosition);
minLineOffset = (minLineOffset.HasValue) ? Math.Min(minLineOffset.Value, offset) : offset;
}
private unsafe void FixHorizontalAlignmentForUnconstrainedLayout(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
output.Seek(0);
while (output.SeekNextLine())
{
var lineInfo = (TextLayoutLineInfoCommand *)output.InternalObjectStream.Data;
if ((settings.Flags & TextFlags.AlignRight) == TextFlags.AlignRight)
{
lineInfo->Offset = (output.ActualWidth - lineInfo->LineWidth);
}
else if ((settings.Flags & TextFlags.AlignCenter) == TextFlags.AlignCenter)
{
lineInfo->Offset = (output.ActualWidth - lineInfo->LineWidth) / 2;
}
}
}
public unsafe Boolean ReplaceLastBreakingSpaceWithLineBreak(TextLayoutCommandStream output, ref TextLayoutSettings settings)
{
if (!lineBreakCommand.HasValue || !lineBreakOffset.HasValue)
{
return(false);
}
var sizeBeforeBreak = brokenTextSizeBeforeBreak.Value;
var sizeAfterBreak = brokenTextSizeAfterBreak.Value;
var brokenCommandSize = Size2.Zero;
var brokenCommandOffset = 0;
var brokenCommandLength = 0;
var newLineHeight = sizeAfterBreak.Height;
if (newLineHeight == 0)
{
newLineHeight = settings.Font.GetFace(SpriteFontStyle.Regular).LineSpacing;
}
// Truncate the command which is being broken.
output.Seek(lineBreakCommand.Value);
unsafe
{
var cmd = (TextLayoutTextCommand *)output.Data;
brokenCommandOffset = cmd->TextOffset;
brokenCommandLength = cmd->TextLength;
brokenCommandSize = cmd->Bounds.Size;
cmd->TextLength = lineBreakOffset.Value;
cmd->TextWidth = (Int16)sizeBeforeBreak.Width;
cmd->TextHeight = (Int16)sizeBeforeBreak.Height;
}
output.SeekNextCommand();
// Insert a line break, a new line, and the second half of the truncated text.
var part1Length = lineBreakOffset.Value;
var part2Offset = brokenCommandOffset + (lineBreakOffset.Value + 1);
var part2Length = brokenCommandLength - (part1Length + 1);
var part2IsNotDegenerate = (part2Length > 0);
var numberOfObjects = part2IsNotDegenerate ? 3 : 2;
var numberOfBytes =
sizeof(TextLayoutLineBreakCommand) +
sizeof(TextLayoutLineInfoCommand) +
(part2IsNotDegenerate ? sizeof(TextLayoutTextCommand) : 0);
var insertionPosition = output.InternalObjectStream.PositionInObjects;
output.InternalObjectStream.ReserveInsert(numberOfObjects, numberOfBytes);
*(TextLayoutLineBreakCommand *)output.Data = new TextLayoutLineBreakCommand(1);
output.InternalObjectStream.FinalizeObject(sizeof(TextLayoutLineBreakCommand));
*(TextLayoutCommandType *)output.Data = TextLayoutCommandType.LineInfo;
output.InternalObjectStream.FinalizeObject(sizeof(TextLayoutLineInfoCommand));
if (part2IsNotDegenerate)
{
var textOffset = part2Offset;
var textLength = part2Length;
*(TextLayoutTextCommand *)output.InternalObjectStream.Data = new TextLayoutTextCommand(textOffset, textLength,
0, positionY + lineHeight, (Int16)sizeAfterBreak.Width, (Int16)sizeAfterBreak.Height);
output.InternalObjectStream.FinalizeObject(sizeof(TextLayoutTextCommand));
}
// Add the line break command to the broken line.
AdvanceLineToNextCommand(0, 0, 1, 1);
// Recalculate the parameters for the broken line.
output.Seek(LineInfoCommandIndex + 1);
var brokenLineWidth = 0;
var brokenLineHeight = 0;
var brokenLineLengthInText = 0;
var brokenLineLengthInCommands = 0;
var cmdType = TextLayoutCommandType.None;
while ((cmdType = *(TextLayoutCommandType *)output.Data) != TextLayoutCommandType.LineInfo)
{
switch (cmdType)
{
case TextLayoutCommandType.Text:
{
var cmd = (TextLayoutTextCommand *)output.Data;
brokenLineWidth += cmd->TextWidth;
brokenLineHeight = Math.Max(brokenLineHeight, cmd->TextHeight);
brokenLineLengthInText += cmd->TextLength;
}
break;
case TextLayoutCommandType.Icon:
{
var cmd = (TextLayoutIconCommand *)output.Data;
brokenLineWidth += cmd->Bounds.Width;
brokenLineHeight = Math.Max(brokenLineHeight, cmd->Bounds.Height);
brokenLineLengthInText += 1;
}
break;
case TextLayoutCommandType.LineBreak:
{
var cmd = (TextLayoutLineBreakCommand *)output.Data;
brokenLineLengthInText += cmd->Length;
}
break;
}
brokenLineLengthInCommands++;
output.SeekNextCommand();
}
// Finalize the broken line.
totalLength = (totalLength - lineLengthInText) + brokenLineLengthInText;
lineWidth = brokenLineWidth;
lineHeight = brokenLineHeight;
lineLengthInText = brokenLineLengthInText;
lineLengthInCommands = brokenLineLengthInCommands;
FinalizeLine(output, ref settings);
// Fixup token bounds and update parameters for new line.
LineInfoCommandIndex = insertionPosition + 1;
while (output.StreamPositionInObjects < output.Count)
{
var width = 0;
var height = 0;
var lengthInCommands = 0;
var lengthInText = 0;
switch (*(TextLayoutCommandType *)output.Data)
{
case TextLayoutCommandType.Text:
{
var cmd = (TextLayoutTextCommand *)output.Data;
width = cmd->TextWidth;
height = cmd->TextHeight;
lengthInCommands = 1;
lengthInText = cmd->TextLength;
cmd->TextX = PositionX;
cmd->TextY = PositionY;
}
break;
case TextLayoutCommandType.Icon:
{
var cmd = (TextLayoutIconCommand *)output.Data;
width = cmd->IconWidth;
height = cmd->IconHeight;
lengthInCommands = 1;
lengthInText = 1;
cmd->IconX = PositionX;
cmd->IconY = PositionY;
}
break;
case TextLayoutCommandType.LineBreak:
{
var cmd = (TextLayoutLineBreakCommand *)output.Data;
lengthInText += cmd->Length;
}
break;
}
AdvanceLineToNextCommand(width, height, lengthInCommands, lengthInText);
output.SeekNextCommand();
}
return(true);
}
public void WriteBlockInfo(TextLayoutCommandStream output, Int32 blockWidth, Int32 blockHeight, Int32 lengthInLines, ref TextLayoutSettings settings)
{
var offset = 0;
if (settings.Height.HasValue)
{
if ((settings.Flags & TextFlags.AlignBottom) == TextFlags.AlignBottom)
{
offset = (settings.Height.Value - blockHeight);
}
else if ((settings.Flags & TextFlags.AlignMiddle) == TextFlags.AlignMiddle)
{
offset = (settings.Height.Value - blockHeight) / 2;
}
}
output.Seek(0);
unsafe
{
var ptr = (TextLayoutBlockInfoCommand *)output.Data;
ptr->Offset = offset;
ptr->LengthInLines = lengthInLines;
}
output.Seek(output.Count);
minBlockOffset = (minBlockOffset.HasValue) ? Math.Min(minBlockOffset.Value, offset) : offset;
}
public void TextRenderer_CorrectlyRendersLinks_WithColorizer()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var textStream = default(TextLayoutCommandStream);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/Garamond");
textRenderer = new TextRenderer();
textStream = new TextLayoutCommandStream();
})
.Render(uv =>
{
uv.GetGraphics().Clear(Color.CornflowerBlue);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var window = uv.GetPlatform().Windows.GetCurrent();
var width = window.DrawableSize.Width;
var height = window.DrawableSize.Height;
textRenderer.LinkColorizer = (target, visited, hovering, active, currentColor) =>
{
if (active)
{
return Color.Magenta;
}
else
{
if (visited)
{
return Color.Yellow;
}
else
{
return Color.Lime;
}
}
};
textRenderer.LinkStateEvaluator = (target) => String.Equals(target, "visited", StringComparison.InvariantCulture);
var settings = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignCenter | TextFlags.AlignMiddle);
textRenderer.CalculateLayout(
"Links can |link:unvisited|unvisited|link| if you've never clicked them.\n" +
"Links can be |link:visited|visisted|link| if you've already clicked them.\n" +
"Links can be |link:active|active even if they\ncross multiple lines|link| if the cursor is clicking them.", textStream, settings);
textRenderer.UpdateCursor(textStream, new Point2(236, 191));
textRenderer.ActivateLinkAtCursor(textStream);
textRenderer.Draw(spriteBatch, textStream, Vector2.Zero, Color.White);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources/Expected/Graphics/Graphics2D/Text/TextRenderer_CorrectlyRendersLinks_WithColorizer.png");
}
protected override void OnDrawing(UltravioletTime time)
{
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settings = new TextLayoutSettings(spriteFont, null, null, TextFlags.Standard);
if (Ultraviolet.Platform == UltravioletPlatform.Android || Ultraviolet.Platform == UltravioletPlatform.iOS)
{
textRenderer.Draw(spriteBatch, "Tap the screen to reset the scrolling text.",
Vector2.One * 8f, Color.White, settings);
}
else
{
textRenderer.Draw(spriteBatch, $"Press {Ultraviolet.GetInput().GetActions().ResetScrollingText.Primary} to reset the scrolling text.",
Vector2.One * 8f, Color.White, settings);
}
var window = Ultraviolet.GetPlatform().Windows.GetPrimary();
var x = (window.DrawableSize.Width - textBlock.Width.Value) / 2;
var y = (window.DrawableSize.Height - textBlock.Height.Value) / 2;
textBlock.Draw(time, spriteBatch, new Vector2(x, y), Color.White);
spriteBatch.End();
base.OnDrawing(time);
}
/// <summary>
/// Advances the layout state to the next line of text after inserting a line break character at the end of the current line.
/// </summary>
/// <param name="output">The <see cref="TextLayoutCommandStream"/> which is being populated.</param>
/// <param name="length">The number of characters in the line break.</param>
/// <param name="settings">The current layout settings.</param>
public void AdvanceLayoutToNextLineWithBreak(TextLayoutCommandStream output, Int32 length, ref TextLayoutSettings settings)
{
var lineSpacing = settings.Font.GetFace(SpriteFontStyle.Regular).LineSpacing;
var lineHeightCurrent = lineHeight;
if (lineHeightCurrent == 0)
{
lineHeightCurrent = lineSpacing;
}
output.WriteLineBreak(new TextLayoutLineBreakCommand(length));
AdvanceLineToNextCommand(0, lineHeightCurrent, 1, length, isLineBreak: true);
AdvanceLayoutToNextLine(output, ref settings);
AdvanceLineToNextCommand(0, 0, 0, 0);
lineHeightTentative = lineSpacing;
}
/// <summary>
/// Updates the text layout stream.
/// </summary>
private void UpdateTextLayoutStream(Size2D availableSize)
{
pendingTextLayout = false;
textLayoutStream.Clear();
if (View == null)
return;
if (textParserStream.Count == 0)
{
UpdateSelectionAndCaret();
return;
}
var owner = TemplatedParent as Control;
if (owner == null || !owner.Font.IsLoaded)
return;
var textFlags = TextFlags.AlignTop;
var textWrapping = (owner == null) ? TextWrapping.NoWrap : owner.GetValue<TextWrapping>(TextBox.TextWrappingProperty);
var textAlignment = (owner == null) ? TextAlignment.Left : owner.GetValue<TextAlignment>(TextBox.TextAlignmentProperty);
var layoutWidth = (textWrapping == TextWrapping.Wrap) ? (Int32?)Display.DipsToPixels(availableSize.Width) : null;
var layoutHeight = (Int32?)null;
switch (textAlignment)
{
case TextAlignment.Left:
textFlags |= TextFlags.AlignLeft;
break;
case TextAlignment.Center:
textFlags |= TextFlags.AlignCenter;
break;
case TextAlignment.Right:
textFlags |= TextFlags.AlignRight;
break;
}
var settings = new TextLayoutSettings(owner.Font, layoutWidth, layoutHeight, textFlags);
View.Resources.TextRenderer.CalculateLayout(textParserStream, textLayoutStream, settings);
UpdateSelectionAndCaret();
}
public void TextRenderer_CorrectlyCalculatesBoundingBoxOfFormattedText()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var blankTexture = default(Texture2D);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/Garamond");
textRenderer = new TextRenderer();
blankTexture = Texture2D.Create(1, 1);
blankTexture.SetData(new[] { Color.White });
})
.Render(uv =>
{
const string text =
"Lorem ipsum dolor sit amet,\n" +
"|b|consectetur adipiscing elit.|b|\n" +
"\n" +
"|i|Pellentesque egestas luctus sapien|i|\n" +
"|b||i|in malesuada.|i||b|\n" +
"\n";
var window = uv.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
uv.GetGraphics().Clear(Color.CornflowerBlue);
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settings = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
var bounds = textRenderer.Draw(spriteBatch, text, Vector2.Zero, Color.White, settings);
spriteBatch.Draw(blankTexture, bounds, Color.Red * 0.5f);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources\Expected\Graphics\Graphics2D\Text\TextRenderer_CorrectlyCalculatesBoundingBoxOfFormattedText.png");
}
/// <summary>
/// Processes a parser token with type <see cref="TextParserTokenType.Icon"/>.
/// </summary>
private Boolean ProcessIconToken(TextLayoutCommandStream output,
ref TextParserToken token, ref LayoutState state, ref TextLayoutSettings settings, ref Int32 index)
{
var icon = default(TextIconInfo);
var iconIndex = RegisterIconWithCommandStream(output, token.Text, out icon);
var iconSize = MeasureToken(null, token.TokenType, token.Text);
if (state.PositionX + iconSize.Width > (settings.Width ?? Int32.MaxValue))
{
state.AdvanceLayoutToNextLine(output, ref settings);
}
if (state.PositionY + iconSize.Height > (settings.Height ?? Int32.MaxValue))
{
return(false);
}
output.WriteIcon(new TextLayoutIconCommand(iconIndex, state.PositionX, state.PositionY, (Int16)iconSize.Width, (Int16)iconSize.Height));
state.AdvanceLineToNextCommand(iconSize.Width, iconSize.Height, 1, 1);
index++;
return(true);
}
public void TextRenderer_CanRenderStyledStrings()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/Garamond");
textRenderer = new TextRenderer();
})
.Render(uv =>
{
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settings = new TextLayoutSettings(spriteFont, null, null, TextFlags.Standard);
textRenderer.Draw(spriteBatch,
"This string is regular\n" +
"|b|This string is bold|b|\n" +
"|i|This string is italic|i|\n" +
"|b||i|This string is bold italic|i||b|", Vector2.Zero, Color.White, settings);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources\Expected\Graphics\Graphics2D\Text\TextRenderer_CanRenderStyledStrings.png");
}
/// <summary>
/// Updates the cache which contains the element's laid-out text.
/// </summary>
/// <param name="availableSize">The amount of space in which the element's text can be laid out.</param>
private void UpdateTextLayoutCache(Size2D availableSize)
{
if (textLayoutCommands != null)
textLayoutCommands.Clear();
if (View == null || containingControl == null)
return;
var content = Content;
var contentElement = content as UIElement;
if (contentElement == null)
{
if (textLayoutCommands == null)
textLayoutCommands = new TextLayoutCommandStream();
var font = containingControl.Font;
if (font.IsLoaded)
{
var availableSizeInPixels = Display.DipsToPixels(availableSize);
var cursorpos = textLayoutCommands.CursorPosition;
var flags = LayoutUtil.ConvertAlignmentsToTextFlags(HorizontalAlignment, VerticalAlignment);
var settings = new TextLayoutSettings(font,
(Int32)Math.Ceiling(availableSizeInPixels.Width),
(Int32)Math.Ceiling(availableSizeInPixels.Height), flags, containingControl.FontStyle);
View.Resources.TextRenderer.CalculateLayout(textParserResult, textLayoutCommands, settings);
View.Resources.TextRenderer.UpdateCursor(textLayoutCommands, cursorpos);
}
}
}
public void TextRenderer_CorrectlyAlignsKernedTextAcrossTokenBoundaries()
{
var spriteBatch = default(SpriteBatch);
var spriteFont = default(SpriteFont);
var textRenderer = default(TextRenderer);
var result = GivenAnUltravioletApplication()
.WithContent(content =>
{
spriteBatch = SpriteBatch.Create();
spriteFont = content.Load<SpriteFont>("Fonts/Garamond");
textRenderer = new TextRenderer();
})
.Render(uv =>
{
const string text =
"||c:AARRGGBB| - Changes the color of text.\n" +
"|c:FFFF0000|red|c| |c:FFFF8000|orange|c| |c:FFFFFF00|yellow|c| |c:FF00FF00|green|c| |c:FF0000FF|blue|c| |c:FF6F00FF|indigo|c| |c:FFFF00FF|magenta|c|";
var window = uv.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var settings = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
textRenderer.Draw(spriteBatch, text, Vector2.Zero, Color.White, settings);
spriteBatch.End();
});
TheResultingImage(result)
.ShouldMatch(@"Resources\Expected\Graphics\Graphics2D\Text\TextRenderer_CorrectlyAlignsKernedTextAcrossTokenBoundaries.png");
}
protected override void OnDrawing(UltravioletTime time)
{
var window = Ultraviolet.GetPlatform().Windows.GetPrimary();
var width = window.ClientSize.Width;
var height = window.ClientSize.Height;
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend);
var attribution =
#if ANDROID
"|c:FFFFFF00|Tap the screen|c| to activate one of the sound effect players.\n\n" +
#else
"Press the |c:FFFFFF00|1-8 number keys|c| to activate one of the sound effect players.\n\n" +
#endif
"\"|c:FFFFFF00|grenade.wav|c|\" by ljudman (http://freesound.org/people/ljudman)\n" +
"Licensed under Creative Commons: Sampling+\n" +
"|c:FF808080|http://creativecommons.org/licenses/sampling+/1.0/|c|";
var settings = new TextLayoutSettings(spriteFont, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
textRenderer.CalculateLayout(attribution, textLayoutCommands, settings);
textRenderer.Draw(spriteBatch, textLayoutCommands, Vector2.Zero, Color.White);
spriteBatch.End();
base.OnDrawing(time);
}
private void DrawGamePadState(Int32 playerIndex, Rectangle area)
{
var input = Ultraviolet.GetInput();
var device = input.GetGamePadForPlayer(playerIndex);
var font = content.Load<SpriteFont>(GlobalFontID.SegoeUI);
var x = area.X;
var y = area.Y;
var textArea = RectangleF.Empty;
spriteBatch.Begin(SpriteSortMode.Deferred, BlendState.AlphaBlend, SamplerState.PointClamp, DepthStencilState.Default, RasterizerState.CullCounterClockwise);
textFormatter.Reset();
textFormatter.AddArgument(playerIndex + 1);
textFormatter.AddArgument(device == null ? "(not connected)" : device.Name);
textFormatter.AddArgument((device == null) ? "" : device.GetButtonState(TwistedLogik.Ultraviolet.Input.GamePadButton.A).ToString());
textFormatter.Format("|c:FFFFFF00|Player {0}|c|\n{1}", textBuffer);
var headerSettings = new TextLayoutSettings(font, area.Width, area.Height, TextFlags.AlignCenter | TextFlags.AlignTop);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, headerSettings);
y += (Int32)textArea.Height + font.Regular.LineSpacing;
if (device != null)
{
textFormatter.Reset();
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.LeftShoulder) ? "LeftShoulder" : "LeftShoulderDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.RightShoulder) ? "RightShoulder" : "RightShoulderDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.A) ? "AButton" : "AButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.B) ? "BButton" : "BButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.X) ? "XButton" : "XButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.Y) ? "YButton" : "YButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.Back) ? "BackButton" : "BackButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.Start) ? "StartButton" : "StartButtonDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.DPadUp) ? "DPadUp" : "DPadUpDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.DPadDown) ? "DPadDown" : "DPadDownDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.DPadLeft) ? "DPadLeft" : "DPadLeftDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.DPadRight) ? "DPadRight" : "DPadRightDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.LeftStick) ? "LeftJoystick" : "LeftJoystickDisabled");
textFormatter.AddArgument(device.IsButtonDown(GamePadButton.RightStick) ? "RightJoystick" : "RightJoystickDisabled");
textFormatter.Format(
"|c:FFFFFF00|Buttons|c|\n\n" +
"|icon:{0}| |icon:{1}|\n" +
"|icon:{2}| |icon:{3}| |icon:{4}| |icon:{5}|\n" +
"|icon:{6}| |icon:{7}|\n" +
"|icon:{8}| |icon:{9}| |icon:{10}| |icon:{11}|\n" +
"|icon:{12}| |icon:{13}|\n\n" +
"|c:FFFFFF00|Axes|c|", textBuffer);
var buttonSettings = new TextLayoutSettings(font, area.Width, area.Height, TextFlags.AlignCenter | TextFlags.AlignTop);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, buttonSettings);
y += (Int32)textArea.Height + font.Regular.LineSpacing;
var axesLeftSettings = new TextLayoutSettings(font, area.Width, area.Height, TextFlags.AlignLeft | TextFlags.AlignTop);
var axesRightSettings = new TextLayoutSettings(font, area.Width, area.Height, TextFlags.AlignRight | TextFlags.AlignTop);
textFormatter.Reset();
textFormatter.AddArgument(device.LeftTrigger);
textFormatter.Format("|icon:LeftTrigger|{0:decimals:2}", textBuffer);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, axesLeftSettings);
textFormatter.Reset();
textFormatter.AddArgument(device.RightTrigger);
textFormatter.Format("{0:decimals:2}|icon:RightTrigger|", textBuffer);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, axesRightSettings);
y += (Int32)textArea.Height;
textFormatter.Reset();
textFormatter.AddArgument(device.LeftJoystickX);
textFormatter.AddArgument(device.LeftJoystickY);
textFormatter.Format("|icon:LeftJoystick|\nX={0:decimals:2}\nY={1:decimals:2}", textBuffer);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, axesLeftSettings);
textFormatter.Reset();
textFormatter.AddArgument(device.RightJoystickX);
textFormatter.AddArgument(device.RightJoystickY);
textFormatter.Format("|icon:RightJoystick|\nX={0:decimals:2}\nY={1:decimals:2}", textBuffer);
textArea = textRenderer.Draw(spriteBatch, textBuffer, new Vector2(x, y), Color.White, axesRightSettings);
}
spriteBatch.End();
}
/// <summary>
/// Performs layout calculations for this cell.
/// </summary>
/// <param name="renderer">The text renderer used to lay out and render the table's text.</param>
/// <param name="width">The cell's width in pixels.</param>
/// <param name="height">The cell's height in pixels.</param>
internal void PerformLayout(TextRenderer renderer, Int32 width, Int32 height)
{
var settings = new TextLayoutSettings(row.Table.Font, width, null, textFlags);
renderer.CalculateLayout(FormattedText, layout, settings);
}
/// <summary>
/// Calculates a layout for the specified text.
/// </summary>
/// <param name="input">The parsed text which will be laid out according to the specified settings.</param>
/// <param name="output">The layout command stream which will be populated with commands by this operation.</param>
/// <param name="settings">A <see cref="TextLayoutSettings"/> structure which contains the settings for this operation.</param>
public void CalculateLayout(TextParserTokenStream input, TextLayoutCommandStream output, TextLayoutSettings settings)
{
Contract.Require(input, nameof(input));
Contract.Require(output, nameof(output));
if (settings.Font == null)
{
throw new ArgumentException(UltravioletStrings.InvalidLayoutSettings);
}
var state = new LayoutState()
{
LineInfoCommandIndex = 1
};
output.Clear();
output.SourceText = input.SourceText;
output.ParserOptions = input.ParserOptions;
var acquiredPointers = !output.HasAcquiredPointers;
if (acquiredPointers)
{
output.AcquirePointers();
}
output.WriteBlockInfo();
output.WriteLineInfo();
var bold = (settings.Style == SpriteFontStyle.Bold || settings.Style == SpriteFontStyle.BoldItalic);
var italic = (settings.Style == SpriteFontStyle.Italic || settings.Style == SpriteFontStyle.BoldItalic);
if (settings.InitialLayoutStyle != null)
{
PrepareInitialStyle(output, ref bold, ref italic, ref settings);
}
var currentFont = settings.Font;
var currentFontFace = settings.Font.GetFace(SpriteFontStyle.Regular);
var index = 0;
var processing = true;
while (index < input.Count && processing)
{
if (state.PositionY >= (settings.Height ?? Int32.MaxValue))
{
break;
}
var token = input[index];
currentFontFace = default(SpriteFontFace);
currentFont = GetCurrentFont(ref settings, bold, italic, out currentFontFace);
switch (token.TokenType)
{
case TextParserTokenType.Text:
processing = ProcessTextToken(input, output, currentFontFace, ref token, ref state, ref settings, ref index);
break;
case TextParserTokenType.Icon:
processing = ProcessIconToken(output, ref token, ref state, ref settings, ref index);
break;
case TextParserTokenType.ToggleBold:
ProcessToggleBoldToken(output, ref bold, ref state, ref index);
break;
case TextParserTokenType.ToggleItalic:
ProcessToggleItalicToken(output, ref italic, ref state, ref index);
break;
case TextParserTokenType.PushFont:
ProcessPushFontToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PushColor:
ProcessPushColorToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PushStyle:
ProcessPushStyleToken(output, ref bold, ref italic, ref token, ref state, ref index);
break;
case TextParserTokenType.PushGlyphShader:
ProcessPushGlyphShaderToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PushLink:
ProcessPushLinkToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopFont:
ProcessPopFontToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopColor:
ProcessPopColorToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopStyle:
ProcessPopStyleToken(output, ref bold, ref italic, ref token, ref state, ref index);
break;
case TextParserTokenType.PopGlyphShader:
ProcessPopGlyphShaderToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopLink:
ProcessPopLinkToken(output, ref token, ref state, ref index);
break;
default:
if (token.TokenType >= TextParserTokenType.Custom)
{
ProcessCustomCommandToken(output, ref token, ref state, ref index);
break;
}
else
{
throw new InvalidOperationException(UltravioletStrings.UnrecognizedLayoutCommand.Format(token.TokenType));
}
}
}
state.FinalizeLayout(output, ref settings);
if (acquiredPointers)
{
output.ReleasePointers();
}
ClearLayoutStacks();
}
/// <summary>
/// Accumulates sequential text tokens into a single text command.
/// </summary>
private Boolean AccumulateText(TextParserTokenStream input, TextLayoutCommandStream output, SpriteFontFace font, ref Int32 index, ref LayoutState state, ref TextLayoutSettings settings)
{
var hyphenate = (settings.Options & TextLayoutOptions.Hyphenate) == TextLayoutOptions.Hyphenate;
var availableWidth = (settings.Width ?? Int32.MaxValue);
var x = state.PositionX;
var y = state.PositionY;
var width = 0;
var height = 0;
var accumulatedStart = input[index].Text.Start + (state.ParserTokenOffset ?? 0);
var accumulatedLength = 0;
var accumulatedCount = 0;
var lineOverflow = false;
var lineBreakPossible = false;
var tokenText = default(StringSegment);
var tokenNext = default(TextParserToken?);
var tokenSize = default(Size2);
while (index < input.Count)
{
var token = input[index];
if (token.TokenType != TextParserTokenType.Text || token.IsNewLine)
break;
if (!IsSegmentForCurrentSource(token.Text))
{
if (accumulatedCount > 0)
break;
EmitChangeSourceIfNecessary(input, output, ref token);
}
tokenText = token.Text.Substring(state.ParserTokenOffset ?? 0);
tokenNext = GetNextTextToken(input, index);
tokenSize = MeasureToken(font, token.TokenType, tokenText, tokenNext);
// NOTE: We assume in a couple of places that tokens sizes don't exceed Int16.MaxValue, so try to
// avoid accumulating tokens larger than that just in case somebody is doing something dumb
if (width + tokenSize.Width > Int16.MaxValue)
break;
var overflowsLine = state.PositionX + tokenSize.Width > availableWidth;
if (overflowsLine)
{
lineOverflow = true;
break;
}
if (tokenText.Start != accumulatedStart + accumulatedLength)
break;
if (token.IsWhiteSpace && (state.LineBreakCommand == null || !token.IsNonBreakingSpace))
{
lineBreakPossible = true;
state.LineBreakCommand = output.Count;
state.LineBreakOffset = accumulatedLength + token.Text.Length - 1;
}
width = width + tokenSize.Width;
height = Math.Max(height, tokenSize.Height);
accumulatedLength = accumulatedLength + tokenText.Length;
accumulatedCount++;
state.AdvanceLineToNextCommand(tokenSize.Width, tokenSize.Height, 1, tokenText.Length);
state.ParserTokenOffset = 0;
state.LineLengthInCommands--;
index++;
}
if (lineBreakPossible)
{
var preLineBreakTextStart = accumulatedStart;
var preLineBreakTextLength = state.LineBreakOffset.Value;
var preLineBreakText = CreateStringSegmentFromCurrentSource(preLineBreakTextStart, preLineBreakTextLength);
var preLineBreakSize = (preLineBreakText.Length == 0) ? Size2.Zero :
MeasureToken(font, TextParserTokenType.Text, preLineBreakText);
state.BrokenTextSizeBeforeBreak = preLineBreakSize;
var postLineBreakStart = accumulatedStart + (state.LineBreakOffset.Value + 1);
var postLineBreakLength = accumulatedLength - (state.LineBreakOffset.Value + 1);
var postLineBreakText = CreateStringSegmentFromCurrentSource(postLineBreakStart, postLineBreakLength);
var postLineBreakSize = (postLineBreakText.Length == 0) ? Size2.Zero :
MeasureToken(font, TextParserTokenType.Text, postLineBreakText, GetNextTextToken(input, index - 1));
state.BrokenTextSizeAfterBreak = postLineBreakSize;
}
var bounds = new Rectangle(x, y, width, height);
EmitTextIfNecessary(output, accumulatedStart, accumulatedLength, ref bounds, ref state);
if (lineOverflow && !state.ReplaceLastBreakingSpaceWithLineBreak(output, ref settings))
{
var overflowingToken = input[index];
if (overflowingToken.IsWhiteSpace && !overflowingToken.IsNonBreakingSpace)
{
output.WriteLineBreak(new TextLayoutLineBreakCommand(1));
state.AdvanceLineToNextCommand(0, 0, 1, 1, isLineBreak: true);
state.AdvanceLayoutToNextLine(output, ref settings);
if (overflowingToken.Text.Length > 1)
{
state.ParserTokenOffset = 1;
}
else
{
index++;
}
return true;
}
if (!GetFittedSubstring(font, availableWidth, ref tokenText, ref tokenSize, ref state, hyphenate) && state.LineWidth == 0)
return false;
var overflowingTokenBounds = (tokenText.Length == 0) ? Rectangle.Empty :
new Rectangle(state.PositionX, state.PositionY, tokenSize.Width, tokenSize.Height);
var overflowingTextEmitted = EmitTextIfNecessary(output, tokenText.Start, tokenText.Length, ref overflowingTokenBounds, ref state);
if (overflowingTextEmitted)
{
state.AdvanceLineToNextCommand(tokenSize.Width, tokenSize.Height, 0, tokenText.Length);
if (hyphenate)
{
output.WriteHyphen();
state.AdvanceLineToNextCommand(0, 0, 1, 0);
}
}
state.ParserTokenOffset = (state.ParserTokenOffset ?? 0) + tokenText.Length;
state.AdvanceLayoutToNextLine(output, ref settings);
}
return true;
}
/// <summary>
/// Processes a parser token with type <see cref="TextParserTokenType.Text"/>.
/// </summary>
private Boolean ProcessTextToken(TextParserTokenStream input, TextLayoutCommandStream output, SpriteFontFace currentFontFace,
ref TextParserToken token, ref LayoutState state, ref TextLayoutSettings settings, ref Int32 index)
{
if (token.IsNewLine)
{
state.AdvanceLayoutToNextLineWithBreak(output, token.SourceLength, ref settings);
index++;
}
else
{
if (!AccumulateText(input, output, currentFontFace, ref index, ref state, ref settings))
{
return(false);
}
}
return(true);
}
/// <summary>
/// Called when the scene is being rendered.
/// </summary>
/// <param name="time">Time elapsed since the last call to Draw.</param>
protected override void OnDrawing(UltravioletTime time)
{
spriteBatch.Begin();
textFormatter.Reset();
textFormatter.AddArgument(Ultraviolet.GetGraphics().FrameRate);
textFormatter.AddArgument(GC.GetTotalMemory(false) / 1024);
textFormatter.AddArgument(Environment.Is64BitProcess ? "64-bit" : "32-bit");
textFormatter.Format("{0:decimals:2} FPS\nAllocated: {1:decimals:2} kb\n{2}", textBuffer);
spriteBatch.DrawString(spriteFont, textBuffer, Vector2.One * 8f, Color.White);
var size = Ultraviolet.GetPlatform().Windows.GetCurrent().Compositor.Size;
var settings = new TextLayoutSettings(spriteFont, size.Width, size.Height, TextFlags.AlignCenter | TextFlags.AlignMiddle);
textRenderer.Draw(spriteBatch, "Welcome to the |c:FFFF00C0|Ultraviolet Framework|c|!", Vector2.Zero, Color.White, settings);
spriteBatch.End();
base.OnDrawing(time);
}
/// <summary>
/// Accumulates sequential text tokens into a single text command.
/// </summary>
private Boolean AccumulateText(TextParserTokenStream input, TextLayoutCommandStream output, SpriteFontFace font, ref Int32 index, ref LayoutState state, ref TextLayoutSettings settings)
{
var hyphenate = (settings.Options & TextLayoutOptions.Hyphenate) == TextLayoutOptions.Hyphenate;
var availableWidth = (settings.Width ?? Int32.MaxValue);
var x = state.PositionX;
var y = state.PositionY;
var width = 0;
var height = 0;
var accumulatedStart = input[index].Text.Start + (state.ParserTokenOffset ?? 0);
var accumulatedLength = 0;
var accumulatedCount = 0;
var lineOverflow = false;
var lineBreakPossible = false;
var tokenText = default(StringSegment);
var tokenNext = default(TextParserToken?);
var tokenSize = default(Size2);
var tokenKerning = 0;
var tokenIsBreakingSpace = false;
while (index < input.Count)
{
var token = input[index];
if (token.TokenType != TextParserTokenType.Text || token.IsNewLine)
{
break;
}
if (!IsSegmentForCurrentSource(token.Text))
{
if (accumulatedCount > 0)
{
break;
}
EmitChangeSourceIfNecessary(input, output, ref token);
}
tokenText = token.Text.Substring(state.ParserTokenOffset ?? 0);
tokenNext = GetNextTextToken(input, index);
tokenSize = MeasureToken(font, token.TokenType, tokenText, tokenNext);
tokenKerning = font.Kerning.Get(tokenText[tokenText.Length - 1], ' ');
// NOTE: We assume in a couple of places that tokens sizes don't exceed Int16.MaxValue, so try to
// avoid accumulating tokens larger than that just in case somebody is doing something dumb
if (width + tokenSize.Width > Int16.MaxValue)
{
break;
}
if (token.IsWhiteSpace && (state.LineBreakCommand == null || !token.IsNonBreakingSpace))
{
lineBreakPossible = true;
state.LineBreakCommand = output.Count;
state.LineBreakOffset = accumulatedLength + token.Text.Length - 1;
tokenIsBreakingSpace = true;
}
else
{
tokenIsBreakingSpace = false;
}
// For most tokens we need to bail out here if there's a line overflow, but
// if it's a breaking space we need to be sure that it's part of the command stream
// so that we can go back and replace it in the line break phase!
var overflowsLine = state.PositionX + tokenSize.Width - tokenKerning > availableWidth;
if (overflowsLine && !tokenIsBreakingSpace)
{
lineOverflow = true;
break;
}
if (tokenText.Start != accumulatedStart + accumulatedLength)
{
break;
}
width = width + tokenSize.Width;
height = Math.Max(height, tokenSize.Height);
accumulatedLength = accumulatedLength + tokenText.Length;
accumulatedCount++;
state.AdvanceLineToNextCommand(tokenSize.Width, tokenSize.Height, 1, tokenText.Length);
state.ParserTokenOffset = 0;
state.LineLengthInCommands--;
index++;
// At this point, we need to bail out even for breaking spaces.
if (overflowsLine && tokenIsBreakingSpace)
{
lineOverflow = true;
break;
}
}
if (lineBreakPossible)
{
var preLineBreakTextStart = accumulatedStart;
var preLineBreakTextLength = state.LineBreakOffset.Value;
var preLineBreakText = CreateStringSegmentFromCurrentSource(preLineBreakTextStart, preLineBreakTextLength);
var preLineBreakSize = (preLineBreakText.Length == 0) ? Size2.Zero :
MeasureToken(font, TextParserTokenType.Text, preLineBreakText);
state.BrokenTextSizeBeforeBreak = preLineBreakSize;
var postLineBreakStart = accumulatedStart + (state.LineBreakOffset.Value + 1);
var postLineBreakLength = accumulatedLength - (state.LineBreakOffset.Value + 1);
var postLineBreakText = CreateStringSegmentFromCurrentSource(postLineBreakStart, postLineBreakLength);
var postLineBreakSize = (postLineBreakText.Length == 0) ? Size2.Zero :
MeasureToken(font, TextParserTokenType.Text, postLineBreakText, GetNextTextToken(input, index - 1));
state.BrokenTextSizeAfterBreak = postLineBreakSize;
}
var bounds = new Rectangle(x, y, width, height);
EmitTextIfNecessary(output, accumulatedStart, accumulatedLength, ref bounds, ref state);
if (lineOverflow && !state.ReplaceLastBreakingSpaceWithLineBreak(output, ref settings))
{
var overflowingToken = input[index];
if (overflowingToken.IsWhiteSpace && !overflowingToken.IsNonBreakingSpace)
{
output.WriteLineBreak(new TextLayoutLineBreakCommand(1));
state.AdvanceLineToNextCommand(0, 0, 1, 1, isLineBreak: true);
state.AdvanceLayoutToNextLine(output, ref settings);
if (overflowingToken.Text.Length > 1)
{
state.ParserTokenOffset = 1;
}
else
{
index++;
}
return(true);
}
if (!GetFittedSubstring(font, availableWidth, ref tokenText, ref tokenSize, ref state, hyphenate) && state.LineWidth == 0)
{
return(false);
}
var overflowingTokenBounds = (tokenText.Length == 0) ? Rectangle.Empty :
new Rectangle(state.PositionX, state.PositionY, tokenSize.Width, tokenSize.Height);
var overflowingTextEmitted = EmitTextIfNecessary(output, tokenText.Start, tokenText.Length, ref overflowingTokenBounds, ref state);
if (overflowingTextEmitted)
{
state.AdvanceLineToNextCommand(tokenSize.Width, tokenSize.Height, 0, tokenText.Length);
if (hyphenate)
{
output.WriteHyphen();
state.AdvanceLineToNextCommand(0, 0, 1, 0);
}
}
state.ParserTokenOffset = (state.ParserTokenOffset ?? 0) + tokenText.Length;
state.AdvanceLayoutToNextLine(output, ref settings);
}
return(true);
}
/// <summary>
/// Calculates a layout for the specified text.
/// </summary>
/// <param name="input">The parsed text which will be laid out according to the specified settings.</param>
/// <param name="output">The layout command stream which will be populated with commands by this operation.</param>
/// <param name="settings">A <see cref="TextLayoutSettings"/> structure which contains the settings for this operation.</param>
public void CalculateLayout(TextParserTokenStream input, TextLayoutCommandStream output, TextLayoutSettings settings)
{
Contract.Require(input, "input");
Contract.Require(output, "output");
if (settings.Font == null)
throw new ArgumentException(UltravioletStrings.InvalidLayoutSettings);
var state = new LayoutState() { LineInfoCommandIndex = 1 };
output.Clear();
output.SourceText = input.SourceText;
output.ParserOptions = input.ParserOptions;
var acquiredPointers = !output.HasAcquiredPointers;
if (acquiredPointers)
output.AcquirePointers();
output.WriteBlockInfo();
output.WriteLineInfo();
var bold = (settings.Style == SpriteFontStyle.Bold || settings.Style == SpriteFontStyle.BoldItalic);
var italic = (settings.Style == SpriteFontStyle.Italic || settings.Style == SpriteFontStyle.BoldItalic);
if (settings.InitialLayoutStyle != null)
PrepareInitialStyle(output, ref bold, ref italic, ref settings);
var currentFont = settings.Font;
var currentFontFace = settings.Font.GetFace(SpriteFontStyle.Regular);
var index = 0;
var processing = true;
while (index < input.Count && processing)
{
if (state.PositionY >= (settings.Height ?? Int32.MaxValue))
break;
var token = input[index];
currentFontFace = default(SpriteFontFace);
currentFont = GetCurrentFont(ref settings, bold, italic, out currentFontFace);
switch (token.TokenType)
{
case TextParserTokenType.Text:
processing = ProcessTextToken(input, output, currentFontFace, ref token, ref state, ref settings, ref index);
break;
case TextParserTokenType.Icon:
processing = ProcessIconToken(output, ref token, ref state, ref settings, ref index);
break;
case TextParserTokenType.ToggleBold:
ProcessToggleBoldToken(output, ref bold, ref state, ref index);
break;
case TextParserTokenType.ToggleItalic:
ProcessToggleItalicToken(output, ref italic, ref state, ref index);
break;
case TextParserTokenType.PushFont:
ProcessPushFontToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PushColor:
ProcessPushColorToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PushStyle:
ProcessPushStyleToken(output, ref bold, ref italic, ref token, ref state, ref index);
break;
case TextParserTokenType.PushGlyphShader:
ProcessPushGlyphShaderToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopFont:
ProcessPopFontToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopColor:
ProcessPopColorToken(output, ref token, ref state, ref index);
break;
case TextParserTokenType.PopStyle:
ProcessPopStyleToken(output, ref bold, ref italic, ref token, ref state, ref index);
break;
case TextParserTokenType.PopGlyphShader:
ProcessPopGlyphShaderToken(output, ref token, ref state, ref index);
break;
default:
throw new InvalidOperationException(UltravioletStrings.UnrecognizedLayoutCommand.Format(token.TokenType));
}
}
state.FinalizeLayout(output, ref settings);
if (acquiredPointers)
output.ReleasePointers();
ClearLayoutStacks();
}
private void DrawColoredAndStyledText()
{
var window = Ultraviolet.GetPlatform().Windows.GetPrimary();
var width = window.DrawableSize.Width;
var height = window.DrawableSize.Height;
if (textLayoutCommands.Settings.Width != width || textLayoutCommands.Settings.Height != height)
{
const string text =
"Ultraviolet Formatting Commands\n" +
"\n" +
"||c:AARRGGBB| - Changes the color of text.\n" +
"|c:FFFF0000|red|c| |c:FFFF8000|orange|c| |c:FFFFFF00|yellow|c| |c:FF00FF00|green|c| |c:FF0000FF|blue|c| |c:FF6F00FF|indigo|c| |c:FFFF00FF|magenta|c|\n" +
"\n" +
"||font:name| - Changes the current font.\n" +
"We can |font:segoe|transition to a completely different font|font| within a single line\n" +
"\n" +
"||b| and ||i| - Changes the current font style.\n" +
"|b|bold|b| |i|italic|i| |b||i|bold italic|i||b|\n" +
"\n" +
"||style:name| - Changes to a preset style.\n" +
"|style:preset1|this is preset1|style| |style:preset2|this is preset2|style|\n" +
"\n" +
"||icon:name| - Draws an icon in the text.\n" +
"[|icon:ok| OK] [|icon:cancel| Cancel]";
var settings = new TextLayoutSettings(spriteFontGaramond, width, height, TextFlags.AlignMiddle | TextFlags.AlignCenter);
textRenderer.CalculateLayout(text, textLayoutCommands, settings);
}
textRenderer.Draw(spriteBatch, textLayoutCommands, Vector2.Zero, Color.White);
}
/// <summary>
/// If the layout has an initial style defined, this method modifies the layout stacks to reflect it.
/// </summary>
private void PrepareInitialStyle(TextLayoutCommandStream output, ref Boolean bold, ref Boolean italic, ref TextLayoutSettings settings)
{
if (settings.InitialLayoutStyle == null)
return;
var initialStyle = default(TextStyle);
var initialStyleIndex = RegisterStyleWithCommandStream(output, settings.InitialLayoutStyle, out initialStyle);
output.WritePushStyle(new TextLayoutStyleCommand(initialStyleIndex));
PushStyle(initialStyle, ref bold, ref italic);
}
/// <summary>
/// Updates the cache that contains the result of laying out the label's text.
/// </summary>
/// <param name="availableSize">The size of the space that is available for laying out text.</param>
private void UpdateTextLayoutResult(Size2D availableSize)
{
textLayoutCommands.Clear();
if (textParserResult.Count > 0 && Font.IsLoaded)
{
var unconstrainedWidth = Double.IsPositiveInfinity(availableSize.Width) && HorizontalAlignment != HorizontalAlignment.Stretch;
var unconstrainedHeight = Double.IsPositiveInfinity(availableSize.Height) && VerticalAlignment != VerticalAlignment.Stretch;
var constraintX = unconstrainedWidth ? null : (Int32?)Math.Ceiling(Display.DipsToPixels(availableSize.Width));
var constraintY = unconstrainedHeight ? null : (Int32?)Math.Ceiling(Display.DipsToPixels(availableSize.Height));
var flags = LayoutUtil.ConvertAlignmentsToTextFlags(HorizontalContentAlignment, VerticalContentAlignment);
var settings = new TextLayoutSettings(Font, constraintX, constraintY, flags, FontStyle);
View.Resources.TextRenderer.CalculateLayout(textParserResult, textLayoutCommands, settings);
}
}
/// <summary>
/// Processes a parser token with type <see cref="TextParserTokenType.Text"/>.
/// </summary>
private Boolean ProcessTextToken(TextParserTokenStream input, TextLayoutCommandStream output, SpriteFontFace currentFontFace,
ref TextParserToken token, ref LayoutState state, ref TextLayoutSettings settings, ref Int32 index)
{
if (token.IsNewLine)
{
state.AdvanceLayoutToNextLineWithBreak(output, token.SourceLength, ref settings);
index++;
}
else
{
if (!AccumulateText(input, output, currentFontFace, ref index, ref state, ref settings))
return false;
}
return true;
}
/// <summary>
/// Updates the cache which contains the element's laid-out text.
/// </summary>
/// <param name="availableSize">The amount of space in which the element's text can be laid out.</param>
private void UpdateTextLayoutCache(Size2D availableSize)
{
if (textLayoutCommands != null)
textLayoutCommands.Clear();
if (View == null || containingControl == null)
return;
var content = Content;
var contentElement = content as UIElement;
if (contentElement == null)
{
if (textLayoutCommands == null)
textLayoutCommands = new TextLayoutCommandStream();
var font = containingControl.Font;
if (font.IsLoaded)
{
var availableSizeInPixels = Display.DipsToPixels(availableSize);
var settings = new TextLayoutSettings(font,
(Int32)Math.Ceiling(availableSizeInPixels.Width),
(Int32)Math.Ceiling(availableSizeInPixels.Height), TextFlags.Standard, containingControl.FontStyle);
View.Resources.TextRenderer.CalculateLayout(textParserResult, textLayoutCommands, settings);
}
}
}
/// <summary>
/// Processes a parser token with type <see cref="TextParserTokenType.Icon"/>.
/// </summary>
private Boolean ProcessIconToken(TextLayoutCommandStream output,
ref TextParserToken token, ref LayoutState state, ref TextLayoutSettings settings, ref Int32 index)
{
var icon = default(TextIconInfo);
var iconIndex = RegisterIconWithCommandStream(output, token.Text, out icon);
var iconSize = MeasureToken(null, token.TokenType, token.Text);
if (state.PositionX + iconSize.Width > (settings.Width ?? Int32.MaxValue))
state.AdvanceLayoutToNextLine(output, ref settings);
if (state.PositionY + iconSize.Height > (settings.Height ?? Int32.MaxValue))
return false;
output.WriteIcon(new TextLayoutIconCommand(iconIndex, state.PositionX, state.PositionY, (Int16)iconSize.Width, (Int16)iconSize.Height));
state.AdvanceLineToNextCommand(iconSize.Width, iconSize.Height, 1, 1);
index++;
return true;
}
