#include "third_party/skia/modules/skparagraph/include/Paragraph.h"
#include "flutter/skwasm/export.h"
#include "flutter/skwasm/live_objects.h"
#include "flutter/skwasm/text/text_types.h"
#include "third_party/skia/include/core/SkScalar.h"
#include "third_party/skia/modules/skparagraph/include/DartTypes.h"
#include "third_party/skia/modules/skparagraph/include/TextStyle.h"

Classes
struct	TextBoxList

Functions
SKWASM_EXPORT void	paragraph_dispose (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getWidth (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getHeight (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getLongestLine (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getMinIntrinsicWidth (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getMaxIntrinsicWidth (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getAlphabeticBaseline (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT SkScalar	paragraph_getIdeographicBaseline (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT bool	paragraph_getDidExceedMaxLines (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT void	paragraph_layout (Skwasm::Paragraph *paragraph, SkScalar width)

SKWASM_EXPORT int32_t	paragraph_getPositionForOffset (Skwasm::Paragraph paragraph, SkScalar offset_x, SkScalar offset_y, skia::textlayout::Affinity out_affinity)

SKWASM_EXPORT bool	paragraph_getClosestGlyphInfoAtCoordinate (Skwasm::Paragraph paragraph, SkScalar offset_x, SkScalar offset_y, SkRect grapheme_layout_bounds, size_t grapheme_code_unit_range, bool boolean_flags)

SKWASM_EXPORT bool	paragraph_getGlyphInfoAt (Skwasm::Paragraph paragraph, size_t index, SkRect grapheme_layout_bounds, size_t grapheme_code_unit_range, bool boolean_flags)

SKWASM_EXPORT void	paragraph_getWordBoundary (Skwasm::Paragraph paragraph, unsigned int position, int32_t out_range)

SKWASM_EXPORT size_t	paragraph_getLineCount (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT int	paragraph_getLineNumberAt (Skwasm::Paragraph *paragraph, size_t character_index)

SKWASM_EXPORT skia::textlayout::LineMetrics *	paragraph_getLineMetricsAtIndex (Skwasm::Paragraph *paragraph, size_t line_number)

SKWASM_EXPORT void	textBoxList_dispose (TextBoxList *list)

SKWASM_EXPORT size_t	textBoxList_getLength (TextBoxList *list)

SKWASM_EXPORT skia::textlayout::TextDirection	textBoxList_getBoxAtIndex (TextBoxList list, size_t index, SkRect out_rect)

SKWASM_EXPORT TextBoxList *	paragraph_getBoxesForRange (Skwasm::Paragraph *paragraph, int start, int end, skia::textlayout::RectHeightStyle height_style, skia::textlayout::RectWidthStyle width_style)

SKWASM_EXPORT TextBoxList *	paragraph_getBoxesForPlaceholders (Skwasm::Paragraph *paragraph)

SKWASM_EXPORT int	paragraph_getUnresolvedCodePoints (Skwasm::Paragraph paragraph, SkUnichar out_code_points, int out_length)

Function Documentation

◆ paragraph_dispose()

SKWASM_EXPORT void paragraph_dispose ( Skwasm::Paragraph * paragraph )

Definition at line 13 of file paragraph.cc.

                                                                 {
  Skwasm::live_paragraph_count--;
  delete paragraph;
}

References Skwasm::live_paragraph_count.

◆ paragraph_getAlphabeticBaseline()

SKWASM_EXPORT SkScalar paragraph_getAlphabeticBaseline ( Skwasm::Paragraph * paragraph )

Definition at line 41 of file paragraph.cc.

                                                            {
  return paragraph->skia_paragraph->getAlphabeticBaseline();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getBoxesForPlaceholders()

SKWASM_EXPORT TextBoxList * paragraph_getBoxesForPlaceholders ( Skwasm::Paragraph * paragraph )

Definition at line 181 of file paragraph.cc.

                                {
  Skwasm::live_text_box_list_count++;
  return new TextBoxList{paragraph->skia_paragraph->getRectsForPlaceholders()};
}

References Skwasm::live_text_box_list_count, and Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getBoxesForRange()

SKWASM_EXPORT TextBoxList * paragraph_getBoxesForRange	(	Skwasm::Paragraph *	paragraph,
		int	start,
		int	end,
		skia::textlayout::RectHeightStyle	height_style,
		skia::textlayout::RectWidthStyle	width_style
	)

Definition at line 170 of file paragraph.cc.

                                              {
  Skwasm::live_text_box_list_count++;
  return new TextBoxList{paragraph->skia_paragraph->getRectsForRange(
      start, end, height_style, width_style)};
}

References end, Skwasm::live_text_box_list_count, Skwasm::Paragraph::skia_paragraph, and start.

◆ paragraph_getClosestGlyphInfoAtCoordinate()

SKWASM_EXPORT bool paragraph_getClosestGlyphInfoAtCoordinate	(	Skwasm::Paragraph *	paragraph,
		SkScalar	offset_x,
		SkScalar	offset_y,
		SkRect *	grapheme_layout_bounds,
		size_t *	grapheme_code_unit_range,
		bool *	boolean_flags
	)

Definition at line 73 of file paragraph.cc.

                         {             // 1 boolean: isLTR
  skia::textlayout::Paragraph::GlyphInfo glyph_info;
  if (!paragraph->skia_paragraph->getClosestUTF16GlyphInfoAt(offset_x, offset_y,
                                                             &glyph_info)) {
    return false;
  }
  // This is more verbose than memcpying the whole struct but ideally we don't
  // want to depend on the exact memory layout of the struct.
  std::memcpy(grapheme_layout_bounds, &glyph_info.fGraphemeLayoutBounds,
              sizeof(SkRect));
  std::memcpy(grapheme_code_unit_range, &glyph_info.fGraphemeClusterTextRange,
              2 * sizeof(size_t));
  boolean_flags[0] =
      glyph_info.fDirection == skia::textlayout::TextDirection::kLtr;
  return true;
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getDidExceedMaxLines()

SKWASM_EXPORT bool paragraph_getDidExceedMaxLines ( Skwasm::Paragraph * paragraph )

Definition at line 50 of file paragraph.cc.

                                {
  return paragraph->skia_paragraph->didExceedMaxLines();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getGlyphInfoAt()

SKWASM_EXPORT bool paragraph_getGlyphInfoAt	(	Skwasm::Paragraph *	paragraph,
		size_t	index,
		SkRect *	grapheme_layout_bounds,
		size_t *	grapheme_code_unit_range,
		bool *	boolean_flags
	)

Definition at line 97 of file paragraph.cc.

                         {             // 1 boolean: isLTR
  skia::textlayout::Paragraph::GlyphInfo glyph_info;
  if (!paragraph->skia_paragraph->getGlyphInfoAtUTF16Offset(index,
                                                            &glyph_info)) {
    return false;
  }
  std::memcpy(grapheme_layout_bounds, &glyph_info.fGraphemeLayoutBounds,
              sizeof(SkRect));
  std::memcpy(grapheme_code_unit_range, &glyph_info.fGraphemeClusterTextRange,
              2 * sizeof(size_t));
  boolean_flags[0] =
      glyph_info.fDirection == skia::textlayout::TextDirection::kLtr;
  return true;
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getHeight()

SKWASM_EXPORT SkScalar paragraph_getHeight ( Skwasm::Paragraph * paragraph )

Definition at line 22 of file paragraph.cc.

                                                                       {
  return paragraph->skia_paragraph->getHeight();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getIdeographicBaseline()

SKWASM_EXPORT SkScalar paragraph_getIdeographicBaseline ( Skwasm::Paragraph * paragraph )

Definition at line 46 of file paragraph.cc.

                                                             {
  return paragraph->skia_paragraph->getIdeographicBaseline();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getLineCount()

SKWASM_EXPORT size_t paragraph_getLineCount ( Skwasm::Paragraph * paragraph )

Definition at line 128 of file paragraph.cc.

                                                                        {
  return paragraph->skia_paragraph->lineNumber();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getLineMetricsAtIndex()

SKWASM_EXPORT skia::textlayout::LineMetrics * paragraph_getLineMetricsAtIndex	(	Skwasm::Paragraph *	paragraph,
		size_t	line_number
	)

Definition at line 137 of file paragraph.cc.

                        {
  Skwasm::live_line_metrics_count++;
  auto metrics = new skia::textlayout::LineMetrics();
  if (paragraph->skia_paragraph->getLineMetricsAt(line_number, metrics)) {
    return metrics;
  } else {
    delete metrics;
    return nullptr;
  }
}

References Skwasm::live_line_metrics_count, and Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getLineNumberAt()

SKWASM_EXPORT int paragraph_getLineNumberAt	(	Skwasm::Paragraph *	paragraph,
		size_t	character_index
	)

Definition at line 132 of file paragraph.cc.

                                                                    {
  return paragraph->skia_paragraph->getLineNumberAtUTF16Offset(character_index);
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getLongestLine()

SKWASM_EXPORT SkScalar paragraph_getLongestLine ( Skwasm::Paragraph * paragraph )

Definition at line 26 of file paragraph.cc.

                                                                            {
  return paragraph->skia_paragraph->getLongestLine();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getMaxIntrinsicWidth()

SKWASM_EXPORT SkScalar paragraph_getMaxIntrinsicWidth ( Skwasm::Paragraph * paragraph )

Definition at line 36 of file paragraph.cc.

                                                           {
  return paragraph->skia_paragraph->getMaxIntrinsicWidth();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getMinIntrinsicWidth()

SKWASM_EXPORT SkScalar paragraph_getMinIntrinsicWidth ( Skwasm::Paragraph * paragraph )

Definition at line 31 of file paragraph.cc.

                                                           {
  return paragraph->skia_paragraph->getMinIntrinsicWidth();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getPositionForOffset()

SKWASM_EXPORT int32_t paragraph_getPositionForOffset	(	Skwasm::Paragraph *	paragraph,
		SkScalar	offset_x,
		SkScalar	offset_y,
		skia::textlayout::Affinity *	out_affinity
	)

Definition at line 61 of file paragraph.cc.

                                                                     {
  auto position = paragraph->skia_paragraph->getGlyphPositionAtCoordinate(
      offset_x, offset_y);
  if (out_affinity) {
    *out_affinity = position.affinity;
  }
  return position.position;
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getUnresolvedCodePoints()

SKWASM_EXPORT int paragraph_getUnresolvedCodePoints	(	Skwasm::Paragraph *	paragraph,
		SkUnichar *	out_code_points,
		int	out_length
	)

Definition at line 194 of file paragraph.cc.

                    {
  if (!out_code_points) {
    return paragraph->skia_paragraph->unresolvedCodepoints().size();
  }
  int out_index = 0;
  for (SkUnichar character :
       paragraph->skia_paragraph->unresolvedCodepoints()) {
    if (out_index < out_length) {
      out_code_points[out_index] = character;
      out_index++;
    } else {
      break;
    }
  }
  return out_index;
}

References character, and Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getWidth()

SKWASM_EXPORT SkScalar paragraph_getWidth ( Skwasm::Paragraph * paragraph )

Definition at line 18 of file paragraph.cc.

                                                                      {
  return paragraph->skia_paragraph->getMaxWidth();
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_getWordBoundary()

SKWASM_EXPORT void paragraph_getWordBoundary	(	Skwasm::Paragraph *	paragraph,
		unsigned int	position,
		int32_t *	out_range
	)

Definition at line 118 of file paragraph.cc.

  {
  auto range = paragraph->skia_paragraph->getWordBoundary(position);
  out_range[0] = range.start;
  out_range[1] = range.end;
}

References Skwasm::Paragraph::skia_paragraph.

◆ paragraph_layout()

SKWASM_EXPORT void paragraph_layout	(	Skwasm::Paragraph *	paragraph,
		SkScalar	width
	)

Definition at line 55 of file paragraph.cc.

                                                    {
  paragraph->skia_paragraph->layout(width);
}

References Skwasm::Paragraph::skia_paragraph, and width.

◆ textBoxList_dispose()

SKWASM_EXPORT void textBoxList_dispose ( TextBoxList * list )

Definition at line 154 of file paragraph.cc.

                                                          {
  Skwasm::live_text_box_list_count--;
  delete list;
}

References Skwasm::live_text_box_list_count.

◆ textBoxList_getBoxAtIndex()

SKWASM_EXPORT skia::textlayout::TextDirection textBoxList_getBoxAtIndex	(	TextBoxList *	list,
		size_t	index,
		SkRect *	out_rect
	)

Definition at line 164 of file paragraph.cc.

                                                                             {
  const auto& box = list->boxes[index];
  *out_rect = box.rect;
  return box.direction;
}

References TextBoxList::boxes.

◆ textBoxList_getLength()

SKWASM_EXPORT size_t textBoxList_getLength ( TextBoxList * list )

Definition at line 159 of file paragraph.cc.

                                                              {
  return list->boxes.size();
}

References TextBoxList::boxes.

Classes

Functions

Function Documentation

◆ paragraph_dispose()

◆ paragraph_getAlphabeticBaseline()

◆ paragraph_getBoxesForPlaceholders()

◆ paragraph_getBoxesForRange()

◆ paragraph_getClosestGlyphInfoAtCoordinate()

◆ paragraph_getDidExceedMaxLines()

◆ paragraph_getGlyphInfoAt()

◆ paragraph_getHeight()

◆ paragraph_getIdeographicBaseline()

◆ paragraph_getLineCount()

◆ paragraph_getLineMetricsAtIndex()

◆ paragraph_getLineNumberAt()

◆ paragraph_getLongestLine()

◆ paragraph_getMaxIntrinsicWidth()

◆ paragraph_getMinIntrinsicWidth()

◆ paragraph_getPositionForOffset()

◆ paragraph_getUnresolvedCodePoints()

◆ paragraph_getWidth()

◆ paragraph_getWordBoundary()

◆ paragraph_layout()

◆ textBoxList_dispose()

◆ textBoxList_getBoxAtIndex()

◆ textBoxList_getLength()