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// Copyright 2014 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "third_party/blink/renderer/platform/graphics/graphics_context_state.h"
#include "third_party/blink/renderer/platform/geometry/stroke_data.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_shader.h"
namespace blink {
static inline cc::PaintFlags::FilterQuality FilterQualityForPaint(
InterpolationQuality quality) {
// The filter quality "selected" here will primarily be used when painting a
// primitive using one of the PaintFlags below. For the most part this will
// not affect things that are part of the Image class hierarchy (which use
// the unmodified m_interpolationQuality.)
return quality != kInterpolationNone ? cc::PaintFlags::FilterQuality::kLow
: cc::PaintFlags::FilterQuality::kNone;
}
GraphicsContextState::GraphicsContextState() {
stroke_flags_.setStyle(cc::PaintFlags::kStroke_Style);
stroke_flags_.setFilterQuality(FilterQualityForPaint(interpolation_quality_));
stroke_flags_.setDynamicRangeLimit(dynamic_range_limit_);
stroke_flags_.setAntiAlias(should_antialias_);
fill_flags_.setFilterQuality(FilterQualityForPaint(interpolation_quality_));
fill_flags_.setDynamicRangeLimit(dynamic_range_limit_);
fill_flags_.setAntiAlias(should_antialias_);
}
GraphicsContextState::GraphicsContextState(const GraphicsContextState& other)
: stroke_flags_(other.stroke_flags_),
fill_flags_(other.fill_flags_),
text_drawing_mode_(other.text_drawing_mode_),
interpolation_quality_(other.interpolation_quality_),
dynamic_range_limit_(other.dynamic_range_limit_),
save_count_(0),
should_antialias_(other.should_antialias_) {}
void GraphicsContextState::Copy(const GraphicsContextState& source) {
this->~GraphicsContextState();
new (this) GraphicsContextState(source);
}
void GraphicsContextState::SetStrokeThickness(float thickness) {
stroke_flags_.setStrokeWidth(SkFloatToScalar(thickness));
}
void GraphicsContextState::SetStroke(const StrokeData& stroke_data) {
stroke_data.SetupPaint(&stroke_flags_);
}
void GraphicsContextState::SetStrokeColor(const Color& color) {
stroke_flags_.setColor(color.toSkColor4f());
stroke_flags_.setShader(nullptr);
}
void GraphicsContextState::SetFillColor(const Color& color) {
fill_flags_.setColor(color.toSkColor4f());
fill_flags_.setShader(nullptr);
}
// Shadow. (This will need tweaking if we use draw loopers for other things.)
void GraphicsContextState::SetDrawLooper(sk_sp<cc::DrawLooper> draw_looper) {
// Grab a new ref for stroke.
stroke_flags_.setLooper(draw_looper);
// Pass the existing ref to fill (to minimize refcount churn).
fill_flags_.setLooper(std::move(draw_looper));
}
void GraphicsContextState::SetInterpolationQuality(
InterpolationQuality quality) {
interpolation_quality_ = quality;
stroke_flags_.setFilterQuality(FilterQualityForPaint(quality));
fill_flags_.setFilterQuality(FilterQualityForPaint(quality));
}
void GraphicsContextState::SetDynamicRangeLimit(DynamicRangeLimit limit) {
dynamic_range_limit_ = limit;
stroke_flags_.setDynamicRangeLimit(limit);
fill_flags_.setDynamicRangeLimit(limit);
}
void GraphicsContextState::SetShouldAntialias(bool should_antialias) {
should_antialias_ = should_antialias;
stroke_flags_.setAntiAlias(should_antialias);
fill_flags_.setAntiAlias(should_antialias);
}
} // namespace blink
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