render_text.h | Explore in Territory

// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#ifndef UI_GFX_RENDER_TEXT_H_
#define UI_GFX_RENDER_TEXT_H_

#include <stddef.h>
#include <stdint.h>

#include <algorithm>
#include <array>
#include <cstring>
#include <memory>
#include <optional>
#include <string>
#include <utility>
#include <vector>

#include "base/i18n/rtl.h"
#include "base/memory/raw_ptr.h"
#include "build/build_config.h"
#include "cc/paint/paint_flags.h"
#include "third_party/skia/include/core/SkColor.h"
#include "third_party/skia/include/core/SkFont.h"
#include "third_party/skia/include/core/SkRefCnt.h"
#include "ui/gfx/break_list.h"
#include "ui/gfx/color_palette.h"
#include "ui/gfx/font_list.h"
#include "ui/gfx/font_render_params.h"
#include "ui/gfx/geometry/point.h"
#include "ui/gfx/geometry/rect.h"
#include "ui/gfx/geometry/rect_f.h"
#include "ui/gfx/geometry/size_f.h"
#include "ui/gfx/geometry/vector2d.h"
#include "ui/gfx/range/range.h"
#include "ui/gfx/range/range_f.h"
#include "ui/gfx/selection_model.h"
#include "ui/gfx/shadow_value.h"
#include "ui/gfx/text_constants.h"

struct SkPoint;
class SkTypeface;

namespace cc {
class DrawLooper;
class PaintCanvas;
}

namespace gfx {
namespace test {
class RenderTextTestApi;
}

class Canvas;
struct DecoratedText;
class Font;

namespace internal {

class TextRunList;

// Internal helper class used by derived classes to draw text through Skia.
class GFX_EXPORT SkiaTextRenderer { … };

struct TextToDisplayIndex { … };

TextToDisplaySequence;
GraphemeIterator;
StyleArray;

// Internal helper class used to iterate colors, baselines, and styles.
class StyleIterator { … };

// Line segments are slices of the display text to be rendered on a single line.
struct LineSegment { … };

// A line of display text, comprised of a line segment list and some metrics.
struct Line { … };

// Internal class that contains the results of the text layout and shaping.
class ShapedText { … };

// Creates an SkTypeface from a font, |italic| and a desired |weight|.
// May return null.
sk_sp<SkTypeface> CreateSkiaTypeface(const Font& font,
                                     bool italic,
                                     Font::Weight weight);

// Applies the given FontRenderParams to the SkFont.
void ApplyRenderParams(const FontRenderParams& params,
                       bool subpixel_rendering_suppressed,
                       SkFont* font);

}  // namespace internal

// RenderText represents an abstract model of styled text and its corresponding
// visual layout. Support is built in for a cursor, selections, simple styling,
// complex scripts, and bi-directional text. Implementations provide mechanisms
// for rendering and translation between logical and visual data.
class GFX_EXPORT RenderText { … };

}  // namespace gfx

#endif  // UI_GFX_RENDER_TEXT_H_
chromium/ui/gfx/render_text.h
