/// <summary>Draws the given Emoji character.</summary>
public void DrawEmoji(Glyph character, ref float left, Renderman renderer)
{
if (!character.Image.Loaded)
{
return;
}
BoxRegion screenRegion = renderer.CurrentRegion;
float top = renderer.TopOffset;
// It's an image (e.g. Emoji).
AtlasLocation locatedAt = RequireImage(character.Image);
if (locatedAt == null)
{
// It needs to be isolated. Big emoji image!
return;
}
if (CharacterProviders.FixHeight)
{
// Set the region:
screenRegion.Set(left, top, locatedAt.Width, locatedAt.Height);
}
else
{
screenRegion.Set(left, top, FontSize, FontSize);
}
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// Ensure correct batch:
renderer.SetupBatch(this, locatedAt.Atlas, null);
// If the two overlap, this means it's actually visible.
MeshBlock block = Add(renderer);
// Set it's colour:
block.SetColour(renderer.ColorOverlay);
// And clip our meshblock to fit within boundary:
block.TextUV = null;
block.ImageUV = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, RenderData.computedStyle.ZIndex, locatedAt, block.ImageUV);
block.Done(renderer.Transform);
}
left += (character.AdvanceWidth) + LetterSpacing;
if (character.Charcode == (int)' ')
{
left += WordSpacing;
}
}
/// <summary>Draws an underline (or a strikethrough).</summary>
public virtual void DrawUnderline(Renderman renderer)
{
// Ensure we have a batch:
renderer.SetupBatch(this, null, null);
// And get our block ready:
MeshBlock block = Add(renderer);
// Set the UV to that of the solid block colour pixel:
block.SetSolidColourUV();
// Set the colour:
block.SetColour(renderer.FontColour);
// Set the verts:
block.SetClipped(renderer.ClippingBoundary, renderer.CurrentRegion, renderer, renderer.TextDepth);
// Ok!
block.Done(renderer.Transform);
}
protected override void Layout()
{
if (Image == null || !Image.Loaded())
{
return;
}
if (Clipping == BackgroundClipping.Text)
{
return;
}
Renderman renderer = Element.Document.Renderer;
if (Image.Animated || Image.IsDynamic || renderer.RenderMode == RenderMode.NoAtlas || Filtering != FilterMode.Point || ForcedIsolate)
{
// SPA is an animation format, so we need a custom texture atlas to deal with it.
// This is because the frames of any animation would quickly exhaust our global texture atlas.
// So to get a custom atlas, we must isolate this property.
Isolate();
}
else if (Image.IsVideo)
{
// Similarly with a video, we need to isolate it aswell.
Isolate();
#if !MOBILE
if (!Image.Video.isPlaying && Element["autoplay"] != null)
{
// Play now:
Image.Video.Play();
// Fire an onplay event:
Element.Run("onplay");
// Clear:
Element["autoplay"] = null;
}
#endif
}
else
{
// Reverse isolation, if we are isolated already:
Include();
}
ComputedStyle computed = Element.Style.Computed;
// Get the full shape of the element:
int width = computed.PaddedWidth;
int height = computed.PaddedHeight;
int minY = computed.OffsetTop + computed.BorderTop;
int minX = computed.OffsetLeft + computed.BorderLeft;
if (width == 0 || height == 0)
{
if (Visible)
{
SetVisibility(false);
}
return;
}
BoxRegion boundary = new BoxRegion(minX, minY, width, height);
if (!boundary.Overlaps(renderer.ClippingBoundary))
{
if (Visible)
{
SetVisibility(false);
}
return;
}
else if (!Visible)
{
// ImageLocation will allocate here if it's needed.
SetVisibility(true);
}
boundary.ClipBy(renderer.ClippingBoundary);
// Texture time - get it's location on that atlas:
AtlasLocation locatedAt = ImageLocation;
if (locatedAt == null)
{
// We're not using the atlas here.
if (!Isolated)
{
Isolate();
}
int imgWidth = Image.Width();
int imgHeight = Image.Height();
locatedAt = new AtlasLocation(0, 0, imgWidth, imgHeight, imgWidth, imgHeight);
}
// Isolation is all done - safe to setup the batch now:
SetupBatch(locatedAt.Atlas, null);
// Great - Use locatedAt.Width/locatedAt.Height - this removes any risk of overflowing into some other image.
int imageCountX = 1;
int imageCountY = 1;
int trueImageWidth = locatedAt.Width;
int trueImageHeight = locatedAt.Height;
int imageWidth = trueImageWidth;
int imageHeight = trueImageHeight;
bool autoX = false;
bool autoY = false;
if (Image.PixelPerfect)
{
imageWidth = (int)(imageWidth * ScreenInfo.ResolutionScale);
imageHeight = (int)(imageWidth * ScreenInfo.ResolutionScale);
}
if (SizeX != null)
{
if (SizeX.Single != 0f)
{
imageWidth = (int)(width * SizeX.Single);
}
else if (SizeX.PX != 0)
{
imageWidth = SizeX.PX;
}
else if (SizeX.IsAuto())
{
autoX = true;
}
}
if (SizeY != null)
{
if (SizeY.Single != 0f)
{
imageHeight = (int)(height * SizeY.Single);
}
else if (SizeY.PX != 0)
{
imageHeight = SizeY.PX;
}
else if (SizeY.IsAuto())
{
autoY = true;
}
}
if (autoX)
{
imageWidth = imageHeight * trueImageWidth / trueImageHeight;
}
else if (autoY)
{
imageHeight = imageWidth * trueImageHeight / trueImageWidth;
}
// offsetX and offsetY are the images position offset from where it should be (e.g. x of -200 means it's 200px left)
// Resolve the true offset values:
int offsetX = 0;
int offsetY = 0;
if (OffsetX != null)
{
// Resolve a potential mixed % and px:
offsetX = OffsetX.GetMixed(width - imageWidth);
}
if (OffsetY != null)
{
// Resolve a potential mixed % and px:
offsetY = OffsetY.GetMixed(height - imageHeight);
}
if (RepeatX)
{
// Get the rounded up number of images:
imageCountX = (width - 1) / imageWidth + 1;
if (offsetX != 0)
{
// If we have an offset, another image is introduced.
imageCountX++;
}
}
if (RepeatY)
{
// Get the rounded up number of images:
imageCountY = (height - 1) / imageHeight + 1;
if (offsetY != 0)
{
// If we have an offset, another image is introduced.
imageCountY++;
}
}
int blockX = minX + offsetX;
int blockY = minY + offsetY;
if (RepeatX && offsetX > 0)
{
// We're repeating and the image is offset by a +ve number.
// This means a small gap, OffsetX px wide, is open on this left side.
// So to fill it, we need to offset this first image by a much bigger number - the value imageWidth-OffsetX.
blockX -= (imageWidth - offsetX);
// This results in the first image having OffsetX pixels exposed in the box - this is what we want.
}
if (RepeatY && offsetY > 0)
{
// Similar thing to above:
blockY -= (imageHeight - offsetY);
}
BoxRegion screenRegion = new BoxRegion();
bool first = true;
int startX = blockX;
Color colour = computed.ColorOverlay;
float zIndex = (computed.ZIndex - 0.003f);
for (int y = 0; y < imageCountY; y++)
{
for (int x = 0; x < imageCountX; x++)
{
// Draw at blockX/blockY.
screenRegion.Set(blockX, blockY, imageWidth, imageHeight);
if (screenRegion.Overlaps(boundary))
{
// If the two overlap, this means it's actually visible.
MeshBlock block = Add();
if (Image.Animated && first)
{
first = false;
// Make sure we have an instance:
Image.GoingOnDisplay();
block.ParentMesh.SetMaterial(Image.Animation.AnimatedMaterial);
}
else if (Image.IsVideo && first)
{
first = false;
block.ParentMesh.SetMaterial(Image.VideoMaterial);
}
else if (Isolated && first)
{
first = false;
block.ParentMesh.SetMaterial(Image.ImageMaterial);
}
// Set it's colour:
block.SetColour(colour);
// And clip our meshblock to fit within boundary:
block.TextUV = null;
block.ImageUV = block.SetClipped(boundary, screenRegion, renderer, zIndex, locatedAt, block.ImageUV);
}
blockX += imageWidth;
}
blockX = startX;
blockY += imageHeight;
}
}
/// <summary>Draws a character with x-inverted UV's. Used for rendering e.g. "1 < 2" in right-to-left.</summary>
protected virtual void DrawInvertCharacter(ref float left, Renderman renderer)
{
BoxRegion screenRegion = renderer.CurrentRegion;
float top = renderer.TopOffset;
int index = renderer.CharacterIndex;
Glyph character = Characters[index];
if (character == null)
{
return;
}
if (Kerning != null)
{
left += Kerning[index] * FontSize;
}
// Get atlas location (if it has one):
AtlasLocation locatedAt = character.Location;
if (locatedAt != null)
{
// We're on the atlas!
float y = top + renderer.TextAscender - ((character.Height + character.MinY) * FontSize);
float scaleFactor = renderer.TextScaleFactor;
screenRegion.Set(left + (character.LeftSideBearing * FontSize), y, locatedAt.Width * scaleFactor, locatedAt.Height * scaleFactor);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// True if this character is visible.
// Ensure correct batch:
renderer.SetupBatch(this, null, locatedAt.Atlas);
MeshBlock block = Add(renderer);
block.SetColour(renderer.FontColour);
block.ApplyOutline();
// And clip our meshblock to fit within boundary:
// Clip our meshblock to fit within boundary:
if (Background != null && Isolated)
{
// Setup the batch material for this char:
Material imageMaterial = Background.Image.Contents.GetImageMaterial(renderer.CurrentShaderSet.Normal);
SetBatchMaterial(renderer, imageMaterial);
// Reapply text atlas:
renderer.CurrentBatch.SetFontAtlas(locatedAt.Atlas);
// Apply the image UV's (we're always isolated so these can tile by going out of range):
block.ImageUV = block.SetClipped(
renderer.ClippingBoundary,
screenRegion,
renderer,
RenderData.computedStyle.ZIndex,
Background.ImageLocation,
block.ImageUV
);
}
else
{
block.ImageUV = null;
}
UVBlock uvs = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, RenderData.computedStyle.ZIndex, locatedAt, block.TextUV);
if (uvs.Shared)
{
uvs = new UVBlock(uvs);
}
// Invert along X:
float temp = uvs.MinX;
uvs.MinX = uvs.MaxX;
uvs.MaxX = temp;
// Assign to the block:
block.TextUV = uvs;
block.Done(renderer.Transform);
}
}
left += (character.AdvanceWidth * FontSize) + LetterSpacing;
if (character.Charcode == (int)' ')
{
left += WordSpacing;
}
}
internal override void Layout(LayoutBox box, Renderman renderer)
{
if (Image == null || !Image.Loaded)
{
return;
}
if (Clipping == BackgroundClipping.Text)
{
return;
}
if (Image.Contents.Isolate || renderer.RenderMode == RenderMode.NoAtlas || Filtering != FilterMode.Point || ForcedIsolate)
{
// SPA is an animation format, so we need a custom texture atlas to deal with it.
// This is because the frames of any animation would quickly exhaust our global texture atlas.
// So to get a custom atlas, we must isolate this property.
Isolate();
}
else
{
// Reverse isolation, if we are isolated already:
Include();
}
// Get the full shape of the element:
float width;
float height;
float minX;
float minY;
if (renderer.ViewportBackground)
{
// Applying to whole background:
BoxRegion viewport = renderer.Viewport;
minY = (int)viewport.Y;
minX = (int)viewport.X;
width = (int)viewport.Width;
height = (int)viewport.Height;
renderer.ViewportBackground = false;
}
else
{
width = (int)(box.PaddedWidth);
height = (int)(box.PaddedHeight);
minY = (int)(box.Y + box.Border.Top);
minX = (int)(box.X + box.Border.Left);
}
if (width == 0 || height == 0)
{
if (Visible)
{
SetVisibility(false);
}
return;
}
// Tell the image that the box has likely changed - this allows it to redraw (e.g. SVGs):
float trueImageWidth;
float trueImageHeight;
Image.Contents.OnLayout(RenderData, box, out trueImageWidth, out trueImageHeight);
BoxRegion boundary = new BoxRegion(minX, minY, width, height);
if (!boundary.Overlaps(renderer.ClippingBoundary))
{
if (Visible)
{
SetVisibility(false);
}
return;
}
else if (!Visible)
{
// ImageLocation will allocate here if it's needed.
SetVisibility(true);
}
boundary.ClipBy(renderer.ClippingBoundary);
// Texture time - get it's location on that atlas:
AtlasLocation locatedAt = ImageLocation;
if (locatedAt == null)
{
// We're not using the atlas here.
if (!Isolated)
{
Isolate();
}
locatedAt = new AtlasLocation(trueImageWidth, trueImageHeight);
}
// Isolation is all done - safe to setup the batch now:
renderer.SetupBatch(this, locatedAt.Atlas, null);
// Great - Use locatedAt.Width/locatedAt.Height - this removes any risk of overflowing into some other image.
int imageCountX = 1;
int imageCountY = 1;
float imageWidth = trueImageWidth * RenderData.ValueScale;
float imageHeight = trueImageHeight * RenderData.ValueScale;
bool autoX = false;
bool autoY = false;
if (SizeX != null)
{
if (SizeX.IsAuto)
{
autoX = true;
}
else
{
imageWidth = SizeX.GetDecimal(RenderData, Css.Properties.BackgroundSize.GlobalPropertyX);
}
}
if (SizeY != null)
{
if (SizeY.IsAuto)
{
autoY = true;
}
else
{
imageHeight = SizeY.GetDecimal(RenderData, Css.Properties.BackgroundSize.GlobalPropertyY);
}
}
if (autoX)
{
imageWidth = imageHeight * trueImageWidth / trueImageHeight;
}
else if (autoY)
{
imageHeight = imageWidth * trueImageHeight / trueImageWidth;
}
// offsetX and offsetY are the images position offset from where it should be (e.g. x of -200 means it's 200px left)
// Apply the offset origin:
float offsetX = OffsetOriginX * (width - imageWidth);
float offsetY = OffsetOriginY * (height - imageHeight);
float offset;
// Resolve the offset values, if there is any:
if (OffsetX != null)
{
offset = OffsetX.GetDecimal(RenderData, ValueAxis.X);
if (OffsetOriginX == 1f)
{
offsetX -= offset;
}
else
{
offsetX += offset;
}
}
if (OffsetY != null)
{
offset = OffsetY.GetDecimal(RenderData, ValueAxis.Y);
if (OffsetOriginY == 1f)
{
offsetY -= offset;
}
else
{
offsetY += offset;
}
}
if (RepeatX)
{
// Get the rounded up number of images:
imageCountX = (int)Math.Ceiling(width / imageWidth);
if (offsetX != 0)
{
// If we have an offset, another image is introduced.
imageCountX++;
}
}
if (RepeatY)
{
// Get the rounded up number of images:
imageCountY = (int)Math.Ceiling(height / imageHeight);
if (offsetY != 0)
{
// If we have an offset, another image is introduced.
imageCountY++;
}
}
float blockX = minX + offsetX;
float blockY = minY + offsetY;
if (RepeatX && offsetX > 0)
{
// We're repeating and the image is offset by a +ve number.
// This means a small gap, OffsetX px wide, is open on this left side.
// So to fill it, we need to offset this first image by a much bigger number - the value imageWidth-OffsetX.
blockX -= (imageWidth - offsetX);
// This results in the first image having OffsetX pixels exposed in the box - this is what we want.
}
if (RepeatY && offsetY > 0)
{
// Similar thing to above:
blockY -= (imageHeight - offsetY);
}
BoxRegion screenRegion = new BoxRegion();
bool first = true;
float startX = blockX;
Color colour = renderer.ColorOverlay;
float zIndex = (RenderData.computedStyle.ZIndex - 0.003f);
Transformation transform = renderer.Transform;
for (int y = 0; y < imageCountY; y++)
{
for (int x = 0; x < imageCountX; x++)
{
// Draw at blockX/blockY.
screenRegion.Set(blockX, blockY, imageWidth, imageHeight);
if (screenRegion.Overlaps(boundary))
{
// If the two overlap, this means it's actually visible.
MeshBlock block = Add(renderer);
if (first)
{
first = false;
if (Isolated)
{
// Set current material:
SetBatchMaterial(renderer, Image.Contents.GetImageMaterial(renderer.CurrentShaderSet.Isolated));
}
}
// Set its colour:
block.SetColour(colour);
// And clip our meshblock to fit within boundary:
block.TextUV = null;
block.ImageUV = block.SetClipped(boundary, screenRegion, renderer, zIndex, locatedAt, block.ImageUV);
block.Done(transform);
}
blockX += imageWidth;
}
blockX = startX;
blockY += imageHeight;
}
}
/// <summary>Draws a character and advances the pen onwards.</summary>
protected virtual void DrawCharacter(ref float left, Renderman renderer)
{
BoxRegion screenRegion = renderer.CurrentRegion;
Color fontColour = renderer.FontColour;
float top = renderer.TopOffset;
int index = renderer.CharacterIndex;
Glyph character = Text.Characters[index];
if (character == null)
{
return;
}
if (Text.Kerning != null)
{
left += Text.Kerning[index] * Text.FontSize;
}
AtlasLocation locatedAt;
if (character.Image != null)
{
DrawEmoji(character, ref left, renderer);
return;
}
// Get atlas location:
locatedAt = character.Location;
// Does this character have a visual glyph? E.g. a space does not.
if (locatedAt != null)
{
float y = top + renderer.TextAscender - ((character.Height + character.MinY) * Text.FontSize);
float scaleFactor = renderer.TextScaleFactor;
screenRegion.Set(left + (character.LeftSideBearing * Text.FontSize), y, locatedAt.Width * scaleFactor, locatedAt.Height * scaleFactor);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// True if this character is visible.
// Ensure correct batch:
renderer.SetupBatch(this, null, locatedAt.Atlas);
MeshBlock block = Add(renderer);
block.SetColour(fontColour);
block.ApplyOutline();
// And clip our meshblock to fit within boundary:
block.ImageUV = null;
block.TextUV = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, RenderData.computedStyle.ZIndex, locatedAt, block.TextUV);
block.Done(renderer.Transform);
}
}
left += (character.AdvanceWidth * Text.FontSize) + Text.LetterSpacing;
if (character.Charcode == (int)' ')
{
left += Text.WordSpacing;
}
}
internal override void Layout(LayoutBox box, Renderman renderer)
{
// Dimensions:
float width = box.Width;
float height = box.Height;
if (Renderer == null)
{
// Create the FWUI now:
Renderer = new FlatWorldUI("#Internal-PowerUI-Raster-" + RasterID, (int)width, (int)height);
RasterID++;
if (Filter != null)
{
// Set source:
Filter.Set("source0", Renderer.Texture);
}
// Grab the output texture:
Output = Renderer.Texture;
}
// Does the given renderer belong to the worldUI?
if (renderer == Renderer.Renderer)
{
// Yes! We're actually drawing the element.
return;
}
// Next we'll draw the rastered image.
// It's essentially just the output from the renderer.
// Get the top left inner corner (inside margin and border):
float top = box.Y;
float left = box.X;
// Update the FlatWorldUI next:
UpdateRenderer(box, width, height);
// Always isolated:
Isolate();
// Make sure the renderer stalls and doesn't draw anything else of this element or its kids.
renderer.StallStatus = 2;
// Setup boundary:
BoxRegion boundary = new BoxRegion(left, top, width, height);
if (!boundary.Overlaps(renderer.ClippingBoundary))
{
if (Visible)
{
SetVisibility(false);
}
return;
}
else if (!Visible)
{
// ImageLocation will allocate here if it's needed.
SetVisibility(true);
}
// Texture time - get its location on that atlas:
if (LocatedAt == null)
{
LocatedAt = new AtlasLocation(width, height);
}
else
{
// Dimensions changed?
int w = (int)width;
int h = (int)height;
if (LocatedAt.Width != w || LocatedAt.Height != h)
{
// Update it:
LocatedAt.UpdateFixed(width, height);
}
}
boundary.ClipBy(renderer.ClippingBoundary);
// Ensure we have a batch:
renderer.SetupBatch(this, null, null);
if (Material == null)
{
// Create the material now using the isolated shader:
Material = new Material(renderer.CurrentShaderSet.Isolated);
// Hook up the output:
Material.SetTexture("_MainTex", Output);
}
// Allocate the block:
MeshBlock block = Add(renderer);
// Set current material:
SetBatchMaterial(renderer, Material);
// Set the (overlay) colour:
block.SetColour(renderer.ColorOverlay);
block.TextUV = null;
// Z-index (same as a background-image):
float zIndex = (RenderData.computedStyle.ZIndex - 0.003f);
BoxRegion screenRegion = new BoxRegion();
screenRegion.Set(left, top, width, height);
// Setup the block:
block.ImageUV = block.SetClipped(boundary, screenRegion, renderer, zIndex, LocatedAt, block.ImageUV);
// Flush it:
block.Done(renderer.Transform);
}
/// <summary>Draws a character and advances the pen onwards.</summary>
private void DrawCharacter(int index, ref float left, float top, Renderman renderer, float zIndex, BoxRegion screenRegion)
{
Glyph character = Characters[index];
if (character == null)
{
return;
}
if (Kerning != null)
{
left += Kerning[index] * FontSize;
}
AtlasLocation locatedAt;
if (character.Image != null)
{
if (!character.Image.Loaded())
{
return;
}
// It's an image (e.g. Emoji).
locatedAt = RequireImage(character.Image);
if (locatedAt == null)
{
// It needs to be isolated. Big emoji image!
return;
}
if (CharacterProviders.FixHeight)
{
// Set the region:
screenRegion.Set(left, top, locatedAt.Width, locatedAt.Height);
}
else
{
screenRegion.Set(left, top, FontSize, FontSize);
}
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// Ensure correct batch:
SetupBatch(locatedAt.Atlas, null);
// If the two overlap, this means it's actually visible.
MeshBlock block = Add();
// Set it's colour:
block.SetColour(Element.Style.Computed.ColorOverlay);
// And clip our meshblock to fit within boundary:
block.TextUV = null;
block.ImageUV = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, zIndex, locatedAt, block.ImageUV);
}
left += (character.AdvanceWidth) + LetterSpacing;
return;
}
else if (character.Space)
{
left += SpaceSize + LetterSpacing;
return;
}
locatedAt = character.Location;
if (locatedAt == null)
{
// Not in font.
return;
}
float y = top + Ascender - ((character.Height + character.MinY) * FontSize);
screenRegion.Set(left + (character.LeftSideBearing * FontSize), y, locatedAt.Width * ScaleFactor, locatedAt.Height * ScaleFactor);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// True if this character is visible.
// Ensure correct batch:
SetupBatch(null, locatedAt.Atlas);
MeshBlock block = Add();
block.SetColour(FontColour);
// And clip our meshblock to fit within boundary:
block.ImageUV = null;
block.TextUV = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, zIndex, locatedAt, block.TextUV);
}
left += (character.AdvanceWidth * FontSize) + LetterSpacing;
}
/// <summary>Draws a character with x-inverted UV's. Used for rendering e.g. "1 < 2" in right-to-left.</summary>
protected virtual void DrawInvertCharacter(ref float left, Renderman renderer)
{
BoxRegion screenRegion = renderer.CurrentRegion;
float top = renderer.TopOffset;
int index = renderer.CharacterIndex;
Glyph character = Text.Characters[index];
if (character == null)
{
return;
}
if (Text.Kerning != null)
{
left += Text.Kerning[index] * Text.FontSize;
}
// Get atlas location (if it has one):
AtlasLocation locatedAt = character.Location;
if (locatedAt != null)
{
// We're on the atlas!
float y = top + renderer.TextAscender - ((character.Height + character.MinY) * Text.FontSize);
float scaleFactor = renderer.TextScaleFactor;
screenRegion.Set(left + (character.LeftSideBearing * Text.FontSize), y, locatedAt.Width * scaleFactor, locatedAt.Height * scaleFactor);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// True if this character is visible.
// Ensure correct batch:
renderer.SetupBatch(this, null, locatedAt.Atlas);
MeshBlock block = Add(renderer);
block.SetColour(renderer.FontColour);
block.ApplyOutline();
// And clip our meshblock to fit within boundary:
block.ImageUV = null;
UVBlock uvs = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, RenderData.computedStyle.ZIndex, locatedAt, block.TextUV);
if (uvs.Shared)
{
uvs = new UVBlock(uvs);
}
// Invert along X:
float temp = uvs.MinX;
uvs.MinX = uvs.MaxX;
uvs.MaxX = temp;
// Assign to the block:
block.TextUV = uvs;
block.Done(renderer.Transform);
}
}
left += (character.AdvanceWidth * Text.FontSize) + Text.LetterSpacing;
if (character.Charcode == (int)' ')
{
left += Text.WordSpacing;
}
}
/// <summary>Draws a character with x-inverted UV's. Used for rendering e.g. "1 < 2" in right-to-left.</summary>
private void DrawInvertCharacter(int index, ref float left, float top, Renderman renderer, float zIndex, BoxRegion screenRegion)
{
Glyph character = Characters[index];
if (character == null)
{
return;
}
if (Kerning != null)
{
left += Kerning[index] * FontSize;
}
if (character.Space)
{
left += SpaceSize + LetterSpacing;
return;
}
float y = top + Ascender - ((character.Height + character.MinY) * FontSize);
AtlasLocation locatedAt = character.Location;
if (locatedAt == null)
{
// Not in font.
return;
}
screenRegion.Set(left + (character.LeftSideBearing * FontSize), y, locatedAt.Width * ScaleFactor, locatedAt.Height * ScaleFactor);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// True if this character is visible.
// Ensure correct batch:
SetupBatch(null, locatedAt.Atlas);
MeshBlock block = Add();
block.SetColour(FontColour);
// And clip our meshblock to fit within boundary:
block.ImageUV = null;
UVBlock uvs = block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, zIndex, locatedAt, block.TextUV);
if (uvs.Shared)
{
uvs = new UVBlock(uvs);
}
// Invert along X:
float temp = uvs.MinX;
uvs.MinX = uvs.MaxX;
uvs.MaxX = temp;
// Assign to the block:
block.TextUV = uvs;
}
left += (character.AdvanceWidth * FontSize) + LetterSpacing;
}
protected override void Layout()
{
if (Characters == null || FontToDraw == null || Characters.Length == 0)
{
return;
}
// The blocks we allocate here come from FontToDraw.
// They use the same renderer and same layout service, but just a different mesh.
// This is to enable potentially very large font atlases with multiple fonts.
ComputedStyle computed = Element.Style.Computed;
Renderman renderer = Element.Document.Renderer;
float top = computed.OffsetTop + computed.StyleOffsetTop;
float left = computed.OffsetLeft + computed.StyleOffsetLeft;
// Should we auto-alias the text?
// Note that this property "drags" to following elements which is correct.
// We don't really want to break batching chains for aliasing.
if (Alias == float.MaxValue)
{
// Yep! Note all values here are const.
float aliasing = Fonts.AutoAliasOffset - ((FontSize - Fonts.AutoAliasRelative) * Fonts.AutoAliasRamp);
if (aliasing > 0.1f)
{
renderer.FontAliasing = aliasing;
}
}
else
{
// Write aliasing:
renderer.FontAliasing = Alias;
}
if (Extrude != 0f)
{
// Compute the extrude now:
if (Text3D == null)
{
Text3D = Get3D(FontSize, FontColour, ref left, ref top);
}
else
{
// Update it.
}
return;
}
else
{
Text3D = null;
}
if (!AllWhitespace)
{
// Firstly, make sure the batch is using the right font texture.
// This may generate a new batch if the font doesn't match the previous or existing font.
// Get the full shape of the element:
int width = computed.PaddedWidth;
int height = computed.PaddedHeight;
int minY = computed.OffsetTop + computed.BorderTop;
int minX = computed.OffsetLeft + computed.BorderLeft;
BoxRegion boundary = new BoxRegion(minX, minY, width, height);
if (!boundary.Overlaps(renderer.ClippingBoundary))
{
if (Visible)
{
SetVisibility(false);
}
return;
}
else if (!Visible)
{
// ImageLocation will allocate here if it's needed.
SetVisibility(true);
}
}
float zIndex = computed.ZIndex;
BoxRegion screenRegion = new BoxRegion();
// First up, underline.
if (TextLine != null)
{
// We have one. Locate it next.
float lineWeight = (FontToDraw.StrikeSize * FontSize);
float yOffset = 0f;
switch (TextLine.Type)
{
case TextLineType.Underline:
yOffset = Ascender + lineWeight;
break;
case TextLineType.StrikeThrough:
yOffset = (FontToDraw.StrikeOffset * FontSize);
yOffset = Ascender - yOffset;
break;
case TextLineType.Overline:
yOffset = (lineWeight * 2f);
break;
}
Color lineColour = FontColour;
if (TextLine.ColourOverride)
{
lineColour = TextLine.Colour;
}
screenRegion.Set(left, top + yOffset, computed.PixelWidth, lineWeight);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// Ensure we have a batch:
SetupBatch(null, null);
// This region is visible. Clip it:
screenRegion.ClipBy(renderer.ClippingBoundary);
// And get our block ready:
MeshBlock block = Add();
// Set the UV to that of the solid block colour pixel:
block.SetSolidColourUV();
// Set the colour:
block.SetColour(lineColour);
block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, zIndex);
}
}
// Next, render the characters.
// If we're rendering from right to left, flip the punctuation over.
// Is the word itself rightwards?
bool rightwardWord = false;
if (StartPunctuationCount < Characters.Length)
{
// Is the first actual character a rightwards one?
Glyph firstChar = Characters[StartPunctuationCount];
if (firstChar != null)
{
rightwardWord = firstChar.Rightwards;
}
}
// Right to left (e.g. arabic):
if (computed.DrawDirection == DirectionType.RTL)
{
int end = Characters.Length - EndPunctuationCount;
// Draw the punctuation from the end of the string first, backwards:
if (EndPunctuationCount > 0)
{
for (int i = Characters.Length - 1; i >= end; i--)
{
DrawInvertCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
if (rightwardWord)
{
// Render the word itself backwards.
for (int i = end - 1; i >= StartPunctuationCount; i--)
{
DrawCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
else
{
// Draw the middle characters:
for (int i = StartPunctuationCount; i < end; i++)
{
DrawCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
// Draw the punctuation from the start of the string last, backwards:
if (StartPunctuationCount > 0)
{
for (int i = StartPunctuationCount - 1; i >= 0; i--)
{
DrawInvertCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
}
else if (rightwardWord)
{
// Render the word itself backwards.
for (int i = Characters.Length - 1; i >= 0; i--)
{
DrawCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
else
{
// Draw it as is.
for (int i = 0; i < Characters.Length; i++)
{
DrawCharacter(i, ref left, top, renderer, zIndex, screenRegion);
}
}
}
internal override void Layout(LayoutBox box, Renderman renderer)
{
// Does the boxes text region overlap our selected range?
if (box.TextEnd <= StartIndex || EndIndex <= box.TextStart)
{
return;
}
// It overlaps! We need to figure out which section we're selecting (and how large it is).
// Get the top left inner corner (inside margin and border):
// Assume we've selected the whole thing; we remove from the start and remove from the end if needed.
float width = box.PaddedWidth;
float height = box.PaddedHeight;
float top = box.Y + box.Border.Top;
float left = box.X + box.Border.Left;
float fs = Text.FontSize;
// If the selected indices totally contain the box..
if (StartIndex > box.TextStart)
{
// Trim the start. We need to chop off the width of these characters.
float characterWidth = 0f;
int max = StartIndex;
if (max > Text.Characters.Length)
{
max = Text.Characters.Length;
}
for (int i = box.TextStart; i < max; i++)
{
InfiniText.Glyph character = Text.Characters[i];
if (character == null)
{
continue;
}
// Advance over the glyph:
if (Text.Kerning != null)
{
characterWidth += Text.Kerning[i] * fs;
}
characterWidth += (character.AdvanceWidth * fs) + Text.LetterSpacing;
if (character.Charcode == (int)' ')
{
characterWidth += Text.WordSpacing;
}
}
// Chop it off:
left += characterWidth;
width -= characterWidth;
}
if (EndIndex < box.TextEnd)
{
// Trim the end. We need to chop off the width of these characters.
float characterWidth = 0f;
int max = box.TextEnd;
if (max > Text.Characters.Length)
{
max = Text.Characters.Length;
}
for (int i = EndIndex; i < max; i++)
{
InfiniText.Glyph character = Text.Characters[i];
if (character == null)
{
continue;
}
// Advance over the glyph:
if (Text.Kerning != null)
{
characterWidth += Text.Kerning[i] * fs;
}
characterWidth += (character.AdvanceWidth * fs) + Text.LetterSpacing;
if (character.Charcode == (int)' ')
{
characterWidth += Text.WordSpacing;
}
}
// Chop it off:
width -= characterWidth;
}
// Is it clipped?
if (renderer.IsInvisible(left, top, width, height))
{
// Totally not visible.
return;
}
// Ensure we have a batch (doesn't change graphics or font thus both nulls):
renderer.SetupBatch(this, null, null);
// Allocate the block:
MeshBlock block = Add(renderer);
// Using firstblock as our block here.
// Set the UV to that of the solid block colour pixel:
block.SetSolidColourUV();
// Set the colour:
block.SetColour(BaseColour);
// And finally sort out the verts:
block.SetClipped(renderer.ClippingBoundary, new BoxRegion(left, top, width, height), renderer, RenderData.computedStyle.ZIndex - 0.004f);
// Flush it:
block.Done(renderer.Transform);
}
protected override void Layout()
{
if (Corners != null)
{
Corners.PreLayout();
}
ComputedStyle computed = Element.Style.Computed;
// Find the zIndex:
// NB: At same depth as BGColour - right at the back.
float zIndex = (computed.ZIndex - 0.006f);
// Get the co-ord of the top edge:
int top = computed.OffsetTop;
int left = computed.OffsetLeft;
// And the dimensions of the lines:
// Note: boxwidth doesn't include the left/right widths to prevent overlapping.
int boxWidth = computed.PaddedWidth;
int boxHeight = computed.PaddedHeight + WidthTop + WidthBottom;
BoxRegion screenRegion = new BoxRegion();
Renderman renderer = Element.Document.Renderer;
// Get the default colour - that's the same as the text colour:
Color colour = Color.black;
// Is the border multicoloured?
bool multiColour = false;
// Does this border have a colour?
if (Colour == null)
{
// Grab the text colour if there is one:
if (computed.Text != null)
{
// It's the same as the font colour:
colour = computed.Text.FontColour;
}
else
{
// Nope - We need to set alpha:
colour.a = computed.ColorOverlay.a;
}
}
else if (Colour.Length == 1)
{
colour = Colour[0];
}
else
{
multiColour = true;
}
for (int i = 0; i < 4; i++)
{
int lineHeight = 0;
int lineWidth = 0;
// Co-ords of the top-left corner for our box:
int cornerY = top;
int cornerX = left;
if (i == 0 || i == 2)
{
// Top or bottom:
lineWidth = boxWidth;
lineHeight = BorderWidth(i);
}
else
{
lineWidth = BorderWidth(i);
lineHeight = boxHeight;
}
// Does this border have multiple colours?
if (multiColour)
{
colour = Colour[i];
}
if (Corners != null)
{
Corners.Layout(i, ref cornerX, ref cornerY, ref lineWidth, ref lineHeight);
}
else
{
switch (i)
{
case 0:
// Top:
cornerX += WidthLeft;
break;
case 1:
// Right:
cornerX += boxWidth + WidthLeft;
break;
case 2:
// Bottom:
cornerY += boxHeight - WidthBottom;
cornerX += WidthLeft;
break;
}
}
screenRegion.Set(cornerX, cornerY, lineWidth, lineHeight);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// This region is visible. Clip it:
screenRegion.ClipBy(renderer.ClippingBoundary);
// Ensure we have a batch (doesn't change graphics or font textures, thus both null):
SetupBatch(null, null);
// And get our block ready:
MeshBlock block = Add();
// Set the UV to that of the solid block colour pixel:
block.SetSolidColourUV();
// Set the border colour:
block.SetColour(colour);
block.SetClipped(renderer.ClippingBoundary, screenRegion, renderer, zIndex);
}
}
}
internal override void Layout(LayoutBox box, Renderman renderer)
{
float width;
float height;
float top;
float left;
bool clip = true;
if (renderer.ViewportBackground)
{
// Applying to whole background:
BoxRegion viewport = renderer.Viewport;
top = viewport.Y;
left = viewport.X;
width = viewport.Width;
height = viewport.Height;
renderer.ViewportBackground = false;
clip = false;
}
else
{
// Get the top left inner corner (inside margin and border):
width = box.PaddedWidth;
height = box.PaddedHeight;
top = box.Y + box.Border.Top;
left = box.X + box.Border.Left;
// Is it clipped?
if (renderer.IsInvisible(left, top, width, height))
{
// Totally not visible.
return;
}
}
// Ensure we have a batch (doesn't change graphics or font thus both nulls):
renderer.SetupBatch(this, null, null);
// Allocate the block:
MeshBlock block = Add(renderer);
// Using firstblock as our block here.
// Set the UV to that of the solid block colour pixel:
block.SetSolidColourUV();
// Set the (overlay) colour:
block.SetColour(BaseColour * renderer.ColorOverlay);
// And finally sort out the verts:
if (clip)
{
block.SetClipped(renderer.ClippingBoundary, new BoxRegion(left, top, width, height), renderer, RenderData.computedStyle.ZIndex - 0.006f);
}
else
{
block.ApplyVertices(new BoxRegion(left, top, width, height), renderer, RenderData.computedStyle.ZIndex - 0.006f);
}
// Flush it:
block.Done(renderer.Transform);
}
