internal UVBlock(UVBlock copy)
{
MinX = copy.MinX;
MinY = copy.MinY;
MaxX = copy.MaxX;
MaxY = copy.MaxY;
}
public UVBlock(UVBlock copy)
{
MinX = copy.MinX;
MinY = copy.MinY;
MaxX = copy.MaxX;
MaxY = copy.MaxY;
}
internal UVBlock(UVBlock copy){
MinX=copy.MinX;
MinY=copy.MinY;
MaxX=copy.MaxX;
MaxY=copy.MaxY;
}
/// <summary>Sets the UV and image on this block to that of the solid colour pixel.</summary>
public void SetSolidColourUV(){
// Set the UVs - solid colour is always at y>1:
ImageUV=null;
TextUV=null;
}
/// <summary>Sets the vertices of this box to that specified by the given block
/// but clipped to fit within a boundary. At the same time, an image is applied
/// to the block and its UV coordinates are also clipped.</summary>
/// <param name="boundary">The clipping boundary. The vertices will be clipped to within this.</param>
/// <param name="block">The position of the vertices.</param>
/// <param name="renderer">The renderer that will render this block.</param>
/// <param name="zIndex">The depth of the vertices.</param>
/// <param name="imgLocation">The location of the image on the meshes atlas.</param>
public UVBlock SetClipped(BoxRegion boundary,BoxRegion block,Renderman renderer,float zIndex,AtlasLocation imgLocation,UVBlock uvBlock){
// Image defines how big we want the image to be in pixels on the screen.
// So firstly we need to find the ratio of how scaled our image actually is:
float originalHeight=block.Height;
float scaleX=imgLocation.Width/block.Width;
float scaleY=imgLocation.Height/originalHeight;
// We'll need to clip block and make sure the image block is clipped too:
float blockX=block.X;
float blockY=block.Y;
if(block.ClipByChecked(boundary)){
// It actually got clipped - time to do some UV clipping too.
// Apply the verts:
ApplyVertices(block,renderer,zIndex);
block.X-=blockX;
block.Y-=blockY;
block.MaxX-=blockX;
block.MaxY-=blockY;
// Flip the gaps (the clipped and now 'missing' sections) - UV's are inverted relative to the vertices.
// Bottom gap is just block.Y:
float bottomGap=block.Y;
// Top gap is the original height - the new maximum; write it to the bottom gap:
block.Y=originalHeight-block.MaxY;
// Update the top gap:
block.MaxY=originalHeight-bottomGap;
// Image was in terms of real screen pixels, so now we need to scale it to being in 'actual image' pixels.
// From there, the region
block.X*=scaleX;
block.MaxX*=scaleX;
block.Y*=scaleY;
block.MaxY*=scaleY;
if(uvBlock==null || uvBlock.Shared){
// Create the UV block:
uvBlock=new UVBlock();
}
// Get the new max/min values:
uvBlock.MinX=imgLocation.GetU(block.X+0.2f);
uvBlock.MaxX=imgLocation.GetU(block.MaxX-0.2f);
uvBlock.MaxY=imgLocation.GetV(block.MaxY-0.2f);
uvBlock.MinY=imgLocation.GetV(block.Y+0.2f);
}else{
// Apply the verts:
ApplyVertices(block,renderer,zIndex);
// Globally share the UV!
uvBlock=imgLocation;
}
return uvBlock;
}
/// <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;
}
