/*
* ReadRelativeOffset
* Reads relative offset from address @at
*/
inline memory_pointer_raw ReadRelativeOffset(memory_pointer_tr at, size_t sizeof_addr = 4, bool vp = true)
{
switch(sizeof_addr)
{
case 1: return (GetAbsoluteOffset(ReadMemory<int8_t> (at, vp), at+sizeof_addr));
case 2: return (GetAbsoluteOffset(ReadMemory<int16_t>(at, vp), at+sizeof_addr));
case 4: return (GetAbsoluteOffset(ReadMemory<int32_t>(at, vp), at+sizeof_addr));
}
return nullptr;
}
// Called during render after backgrounds, borders, decorators, but before children, are rendered.
void ElementCircularBar::OnRender()
{
if(geometry_dirty)
GenerateGeometry();
gauge_geometry.Render(GetAbsoluteOffset(Rocket::Core::Box::CONTENT));
}
// Renders the element.
void ElementImage::OnRender()
{
// Regenerate the geometry if required (this will be set if 'coords' changes but does not
// result in a resize).
if (geometry_dirty)
GenerateGeometry();
// Render the geometry beginning at this element's content region.
geometry.Render(GetAbsoluteOffset(Rocket::Core::Box::CONTENT));
}
void ElementTextDefault::OnRender()
{
FontFaceHandle* font_face_handle = GetFontFaceHandle();
if (!font_face_handle)
return;
// If our font configuration has potentially changed, update it and force a geometry
// generation if necessary.
if (font_dirty &&
UpdateFontConfiguration())
{
geometry_dirty = true;
}
// Regenerate the geometry if the colour or font configuration has altered.
if (geometry_dirty)
GenerateGeometry(font_face_handle);
Vector2f translation = GetAbsoluteOffset();
bool render = true;
Vector2i clip_origin;
Vector2i clip_dimensions;
if (GetContext()->GetActiveClipRegion(clip_origin, clip_dimensions))
{
float clip_top = clip_origin.y;
float clip_left = clip_origin.x;
float clip_right = (clip_origin.x + clip_dimensions.x);
float clip_bottom = (clip_origin.y + clip_dimensions.y);
float line_height = GetFontFaceHandle()->GetLineHeight();
render = false;
for (size_t i = 0; i < lines.size(); ++i)
{
const Line& line = lines[i];
float x = translation.x + line.position.x;
float y = translation.y + line.position.y;
bool render_line = !(x > clip_right);
render_line = render_line && !(x + line.width < clip_left);
render_line = render_line && !(y - line_height > clip_bottom);
render_line = render_line && !(y < clip_top);
if (render_line)
{
render = true;
break;
}
}
}
if (render)
{
for (size_t i = 0; i < geometry.size(); ++i)
geometry[i].Render(translation);
}
if (decoration_property != TEXT_DECORATION_NONE)
decoration.Render(translation);
}
