ui/gfx/vector_icon_utils.cc

// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

#include "ui/gfx/vector_icon_utils.h"

#include <ostream>

#include "base/check_op.h"
#include "base/notreached.h"
#include "ui/gfx/vector_icon_types.h"

namespace gfx {

int GetCommandArgumentCount(CommandType command) {
  switch (command) {
    case STROKE:
    case H_LINE_TO:
    case R_H_LINE_TO:
    case V_LINE_TO:
    case R_V_LINE_TO:
    case CANVAS_DIMENSIONS:
    case PATH_COLOR_ALPHA:
      return 1;

    case MOVE_TO:
    case R_MOVE_TO:
    case LINE_TO:
    case R_LINE_TO:
    case QUADRATIC_TO_SHORTHAND:
    case R_QUADRATIC_TO_SHORTHAND:
      return 2;

    case CIRCLE:
      return 3;

    case PATH_COLOR_ARGB:
    case CUBIC_TO_SHORTHAND:
    case CLIP:
    case QUADRATIC_TO:
    case R_QUADRATIC_TO:
    case OVAL:
      return 4;

    case ROUND_RECT:
      return 5;

    case CUBIC_TO:
    case R_CUBIC_TO:
      return 6;

    case ARC_TO:
    case R_ARC_TO:
      return 7;

    case FILL_RULE_NONZERO:
    case NEW_PATH:
    case PATH_MODE_CLEAR:
    case CAP_SQUARE:
    case CLOSE:
    case DISABLE_AA:
    case FLIPS_IN_RTL:
      return 0;
  }

  NOTREACHED();
}

int GetDefaultSizeOfVectorIcon(const VectorIcon& icon) {
  if (icon.is_empty())
    return -1;
  const VectorIconRep& default_rep = icon.reps.back();
  DCHECK_EQ(default_rep.path[0].command, CANVAS_DIMENSIONS)
      << " " << icon.name
      << " has no size in its icon definition, and it seems unlikely you want "
         "to display at the default of 48dip. Please specify a size in "
         "CreateVectorIcon().";
  return default_rep.path[1].arg;
}

}  // namespace gfx