/// <summary>Resets the clipping boundary back to the whole screen.</summary>
public void ResetBoundary()
{
// Update viewport:
if (InWorldUI != null)
{
ScreenViewport.Width = InWorldUI.pixelWidth;
ScreenViewport.Height = InWorldUI.pixelHeight;
}
else
{
ScreenViewport.Width = ScreenInfo.ScreenX;
ScreenViewport.Height = ScreenInfo.ScreenY;
}
// Apply screen viewport as the root one:
Viewport = ScreenViewport;
if (InWorldUI != null || ScreenClip)
{
ClippingBoundary.Set(0, 0, Viewport.Width, Viewport.Height);
}
else
{
ClippingBoundary.Set(-80000, -80000, 160000, 160000);
}
}
/// <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 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 (Characters == null || Characters.Length == 0)
{
// Not ready yet or nothing here.
return;
}
// Get indices:
int startIndex = box.TextStart;
int maxIndex = box.TextEnd;
if (startIndex >= maxIndex)
{
// No text selected.
return;
}
// If we've got a background, set it up now:
if (Background != null)
{
Background.Layout(box, renderer);
}
// Get the font colour:
Color fontColour = BaseColour * renderer.ColorOverlay;
// 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.
float top = box.Y + box.StyleOffsetTop + LineHeightOffset;
float left = box.X + box.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!
// Get quick ref to constants set:
float[] hints = Fonts.AutoAliasHints;
if (FontSize <= hints[0])
{
renderer.FontAliasingBottom = hints[1];
renderer.FontAliasingTop = hints[2];
}
else if (FontSize >= hints[12])
{
renderer.FontAliasingBottom = hints[13];
renderer.FontAliasingTop = hints[14];
}
else
{
float minBottom;
float minTop;
float deltaSize;
float deltaBottom;
float deltaTop;
float relative;
// Note: Just about everything here is constant. Inlined for speed.
// Interpolate:
if (FontSize <= hints[3])
{
// Between 3 and 0.
minBottom = hints[1];
minTop = hints[2];
deltaSize = hints[3] - hints[0];
deltaBottom = hints[4] - hints[1];
deltaTop = hints[5] - hints[2];
relative = (FontSize - hints[0]) / deltaSize;
}
else if (FontSize <= hints[6])
{
// Between 6 and 3.
minBottom = hints[4];
minTop = hints[5];
deltaSize = hints[6] - hints[3];
deltaBottom = hints[7] - hints[4];
deltaTop = hints[8] - hints[5];
relative = (FontSize - hints[3]) / deltaSize;
}
else if (FontSize <= hints[9])
{
// Between 9 and 6.
minBottom = hints[7];
minTop = hints[8];
deltaSize = hints[9] - hints[6];
deltaBottom = hints[10] - hints[7];
deltaTop = hints[11] - hints[8];
relative = (FontSize - hints[6]) / deltaSize;
}
else
{
// Must be between 12 and 9.
minBottom = hints[10];
minTop = hints[11];
deltaSize = hints[12] - hints[9];
deltaBottom = hints[13] - hints[10];
deltaTop = hints[14] - hints[11];
relative = (FontSize - hints[9]) / deltaSize;
}
// Note: Most of the above is constant. Inlined for speed.
renderer.FontAliasingBottom = (relative * deltaBottom) + minBottom;
renderer.FontAliasingTop = (relative * deltaTop) + minTop;
}
}
else
{
// Write aliasing:
renderer.FontAliasingTop = InfiniText.Fonts.OutlineLocation + Alias;
renderer.FontAliasingBottom = InfiniText.Fonts.OutlineLocation - Alias;
}
if (!AllEmpty)
{
// 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:
float width = box.PaddedWidth;
float height = box.PaddedHeight;
float minY = box.Y + box.Border.Top;
float minX = box.X + box.Border.Left;
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 = RenderData.computedStyle.ZIndex;
BoxRegion screenRegion = new BoxRegion();
// Update renderer with various text properties:
renderer.CurrentRegion = screenRegion;
renderer.CurrentBox = box;
renderer.TopOffset = top;
renderer.TextScaleFactor = FontSize / Fonts.Rasteriser.ScalarX;
renderer.TextAscender = (FontToDraw.Ascender * FontSize);
// First up, underline.
if (TextLine != null)
{
// We have one. Locate it next.
float lineWeight = (FontToDraw.StrikeSize * FontSize);
float yOffset = 0f;
switch (TextLine.Type)
{
case TextDecorationLineMode.Underline:
yOffset = renderer.TextAscender + (lineWeight * 2f);
break;
case TextDecorationLineMode.LineThrough:
yOffset = (FontToDraw.StrikeOffset * FontSize);
yOffset = renderer.TextAscender - yOffset;
break;
case TextDecorationLineMode.Overline:
yOffset = (lineWeight * 2f);
break;
}
// Note: The integer rounding is required here to prevent underlines from alternating between
// a thick line and a thin one as you scroll around.
screenRegion.Set(left, (int)(top + yOffset), box.Width, lineWeight);
if (screenRegion.Overlaps(renderer.ClippingBoundary))
{
// This region is visible. Clip it:
screenRegion.ClipBy(renderer.ClippingBoundary);
if (TextLine.ColourOverride)
{
renderer.FontColour = TextLine.BaseColour * renderer.ColorOverlay;
}
else
{
renderer.FontColour = fontColour;
}
renderer.TextDepth = zIndex;
// Draw the underline now!
DrawUnderline(renderer);
}
}
// Update font colour:
renderer.FontColour = fontColour;
// Next, render the characters.
// If we're rendering from right to left, flip the punctuation over.
switch (box.UnicodeBidi)
{
case UnicodeBidiMode.LeftwardsNormal:
// Render the text from the last char backwards.
for (int i = maxIndex - 1; i >= startIndex; i--)
{
renderer.CharacterIndex = i;
DrawCharacter(ref left, renderer);
}
break;
case UnicodeBidiMode.LeftwardsMirrored:
// Render the characters with horizontally inverted uv's.
for (int i = maxIndex - 1; i >= startIndex; i--)
{
renderer.CharacterIndex = i;
DrawInvertCharacter(ref left, renderer);
}
break;
case UnicodeBidiMode.RightwardsMirrored:
// Render the characters with horizontally inverted uv's.
for (int i = startIndex; i < maxIndex; i++)
{
renderer.CharacterIndex = i;
DrawInvertCharacter(ref left, renderer);
}
break;
default:
// Draw it as is.
for (int i = startIndex; i < maxIndex; i++)
{
renderer.CharacterIndex = i;
DrawCharacter(ref left, renderer);
}
break;
}
}
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;
}
}
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>
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;
}
}
/// <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;
}
}
