void ElementImage::GenerateGeometry()
{
// Release the old geometry before specifying the new vertices.
geometry.Release(true);
std::vector< Rocket::Core::Vertex >& vertices = geometry.GetVertices();
std::vector< int >& indices = geometry.GetIndices();
vertices.resize(4);
indices.resize(6);
// Generate the texture coordinates.
Vector2f texcoords[2];
if (using_coords)
{
Vector2f texture_dimensions((float) texture.GetDimensions(GetRenderInterface()).x, (float) texture.GetDimensions(GetRenderInterface()).y);
if (texture_dimensions.x == 0)
texture_dimensions.x = 1;
if (texture_dimensions.y == 0)
texture_dimensions.y = 1;
texcoords[0].x = (float) coords[0] / texture_dimensions.x;
texcoords[0].y = (float) coords[1] / texture_dimensions.y;
texcoords[1].x = (float) coords[2] / texture_dimensions.x;
texcoords[1].y = (float) coords[3] / texture_dimensions.y;
}
else
{
texcoords[0] = Vector2f(0, 0);
texcoords[1] = Vector2f(1, 1);
}
const Property* element_colour = GetProperty(BACKGROUND_COLOR);
float opacity = GetProperty<float>(OPACITY);
Colourb quad_colour = Colourb(255, 255, 255);
if (element_colour)
{
Colourb background_colour = element_colour->Get<Colourb>();
// Should be a non-transparent background
if (background_colour.alpha != 0)
quad_colour = background_colour;
}
// Apply opacity
quad_colour.alpha = (byte)(opacity * (float)quad_colour.alpha);
Rocket::Core::GeometryUtilities::GenerateQuad(&vertices[0], // vertices to write to
&indices[0], // indices to write to
Vector2f(0, 0), // origin of the quad
GetBox().GetSize(Rocket::Core::Box::CONTENT), // size of the quad
quad_colour, // colour of the vertices
texcoords[0], // top-left texture coordinate
texcoords[1]); // top-right texture coordinate
geometry_dirty = false;
}
void ElementImage::GenerateGeometry()
{
// Release the old geometry before specifying the new vertices.
geometry.Release(true);
std::vector< Rocket::Core::Vertex >& vertices = geometry.GetVertices();
std::vector< int >& indices = geometry.GetIndices();
vertices.resize(4);
indices.resize(6);
// Generate the texture coordinates.
Vector2f texcoords[2];
if (using_coords)
{
Vector2f texture_dimensions((float) texture.GetDimensions(GetRenderInterface()).x, (float) texture.GetDimensions(GetRenderInterface()).y);
if (texture_dimensions.x == 0)
texture_dimensions.x = 1;
if (texture_dimensions.y == 0)
texture_dimensions.y = 1;
texcoords[0].x = (float) coords[0] / texture_dimensions.x;
texcoords[0].y = (float) coords[1] / texture_dimensions.y;
texcoords[1].x = (float) coords[2] / texture_dimensions.x;
texcoords[1].y = (float) coords[3] / texture_dimensions.y;
}
else
{
texcoords[0] = Vector2f(0, 0);
texcoords[1] = Vector2f(1, 1);
}
Colourb colour(255, 255,255,255);
const Property* property = GetLocalProperty(COLOR);
if (property)
colour = property->value.Get<Colourb>();
Rocket::Core::GeometryUtilities::GenerateQuad(&vertices[0], // vertices to write to
&indices[0], // indices to write to
Vector2f(0, 0), // origin of the quad
GetBox().GetSize(Rocket::Core::Box::CONTENT), // size of the quad
colour, // colour of the vertices
texcoords[0], // top-left texture coordinate
texcoords[1]); // top-right texture coordinate
geometry_dirty = false;
}
