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LibPDF: Move color space creation from Renderer to ColorSpace
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3 changed files with 52 additions and 41 deletions
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@ -6,10 +6,44 @@
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#include <LibPDF/ColorSpace.h>
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#include <LibPDF/CommonNames.h>
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#include <LibPDF/Document.h>
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#include <LibPDF/ObjectDerivatives.h>
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namespace PDF {
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PDFErrorOr<NonnullRefPtr<ColorSpace>> ColorSpace::create(Document* document, FlyString const& name, Page const& page)
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{
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// Simple color spaces with no parameters, which can be specified directly
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if (name == CommonNames::DeviceGray)
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return DeviceGrayColorSpace::the();
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if (name == CommonNames::DeviceRGB)
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return DeviceRGBColorSpace::the();
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if (name == CommonNames::DeviceCMYK)
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return DeviceCMYKColorSpace::the();
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if (name == CommonNames::Pattern)
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TODO();
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// The color space is a complex color space with parameters that resides in
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// the resource dictionary
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auto color_space_resource_dict = TRY(page.resources->get_dict(document, CommonNames::ColorSpace));
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if (!color_space_resource_dict->contains(name))
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TODO();
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auto color_space_array = TRY(color_space_resource_dict->get_array(document, name));
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auto color_space_name = TRY(color_space_array->get_name_at(document, 0))->name();
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Vector<Value> parameters;
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parameters.ensure_capacity(color_space_array->size() - 1);
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for (size_t i = 1; i < color_space_array->size(); i++)
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parameters.unchecked_append(color_space_array->at(i));
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if (color_space_name == CommonNames::CalRGB)
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return TRY(CalRGBColorSpace::create(document, move(parameters)));
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dbgln("Unknown color space: {}", color_space_name);
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TODO();
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}
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NonnullRefPtr<DeviceGrayColorSpace> DeviceGrayColorSpace::the()
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{
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static auto instance = adopt_ref(*new DeviceGrayColorSpace());
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@ -54,7 +88,7 @@ Color DeviceCMYKColorSpace::color(Vector<Value> const& arguments) const
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return Color::from_cmyk(c, m, y, k);
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}
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PDFErrorOr<NonnullRefPtr<CalRGBColorSpace>> CalRGBColorSpace::create(RefPtr<Document> document, Vector<Value>&& parameters)
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PDFErrorOr<NonnullRefPtr<CalRGBColorSpace>> CalRGBColorSpace::create(Document* document, Vector<Value>&& parameters)
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{
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if (parameters.size() != 1)
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return Error { Error::Type::MalformedPDF, "RGB color space expects one parameter" };
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