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LibPDF: Split ColorSpace into a different class for each color space

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While unnecessary at the moment, this will allow for more fine-grained
control when complex color spaces get added.
This commit is contained in:
Matthew Olsson 2021-05-27 14:01:37 -07:00 • committed by Ali Mohammad Pur
parent ea3abb14fe
commit 7b4e36bf88
7 changed files with 174 additions and 106 deletions
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33
Userland/Libraries/LibPDF/Renderer.h
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@ -16,22 +16,10 @@
#include <LibGfx/Point.h>
#include <LibGfx/Rect.h>
#include <LibGfx/Size.h>
#include <LibPDF/ColorSpace.h>
#include <LibPDF/Document.h>
#include <LibPDF/Object.h>
#define ENUMERATE_COLOR_SPACES(V) \
V(DeviceGray) \
V(DeviceRGB) \
V(DeviceCMYK) \
V(CalGray) \
V(CalRGB) \
V(Lab) \
V(ICCBased) \
V(Indexed) \
V(Pattern) \
V(Separation) \
V(DeviceN)
namespace PDF {
enum class LineCapStyle : u8 {
@ -73,23 +61,10 @@ struct TextState {
bool knockout { true };
};
class ColorSpace {
public:
enum class Type {
#define ENUM(name) name,
ENUMERATE_COLOR_SPACES(ENUM)
#undef ENUM
};
static Optional<ColorSpace::Type> color_space_from_string(const FlyString&);
static Color default_color_for_color_space(ColorSpace::Type);
static Color color_from_parameters(ColorSpace::Type color_space, const Vector<Value>& args);
};
struct GraphicsState {
Gfx::AffineTransform ctm;
ColorSpace::Type stroke_color_space { ColorSpace::Type::DeviceGray };
ColorSpace::Type paint_color_space { ColorSpace::Type::DeviceGray };
RefPtr<ColorSpace> stroke_color_space { DeviceGrayColorSpace::the() };
RefPtr<ColorSpace> paint_color_space { DeviceGrayColorSpace::the() };
Gfx::Color stroke_color { Gfx::Color::NamedColor::Black };
Gfx::Color paint_color { Gfx::Color::NamedColor::Black };
float line_width { 1.0f };
@ -119,7 +94,7 @@ private:
// shift is the manual advance given in the TJ command array
void show_text(const String&, int shift = 0);
ColorSpace::Type get_color_space(const Value&);
RefPtr<ColorSpace> get_color_space(const Value&);
ALWAYS_INLINE const GraphicsState& state() const { return m_graphics_state_stack.last(); }
ALWAYS_INLINE GraphicsState& state() { return m_graphics_state_stack.last(); }