xfa/fxgraphics/cfx_path.cpp

// Copyright 2016 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.

// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com

#include "xfa/fxgraphics/cfx_path.h"

#include "core/fxge/cfx_pathdata.h"
#include "third_party/base/ptr_util.h"
#include "xfa/fxgraphics/cfx_path_generator.h"

CFX_Path::CFX_Path() {}

FWL_Error CFX_Path::Create() {
  if (m_generator)
    return FWL_Error::PropertyInvalid;

  m_generator = pdfium::MakeUnique<CFX_PathGenerator>();
  return FWL_Error::Succeeded;
}

CFX_Path::~CFX_Path() {}

FWL_Error CFX_Path::MoveTo(FX_FLOAT x, FX_FLOAT y) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->MoveTo(x, y);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::LineTo(FX_FLOAT x, FX_FLOAT y) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->LineTo(x, y);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::BezierTo(FX_FLOAT ctrlX1,
                             FX_FLOAT ctrlY1,
                             FX_FLOAT ctrlX2,
                             FX_FLOAT ctrlY2,
                             FX_FLOAT toX,
                             FX_FLOAT toY) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->BezierTo(ctrlX1, ctrlY1, ctrlX2, ctrlY2, toX, toY);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::ArcTo(FX_FLOAT left,
                          FX_FLOAT top,
                          FX_FLOAT width,
                          FX_FLOAT height,
                          FX_FLOAT startAngle,
                          FX_FLOAT sweepAngle) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->ArcTo(left + width / 2, top + height / 2, width / 2, height / 2,
                     startAngle, sweepAngle);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::Close() {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->Close();
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddLine(FX_FLOAT x1,
                            FX_FLOAT y1,
                            FX_FLOAT x2,
                            FX_FLOAT y2) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddLine(x1, y1, x2, y2);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddBezier(FX_FLOAT startX,
                              FX_FLOAT startY,
                              FX_FLOAT ctrlX1,
                              FX_FLOAT ctrlY1,
                              FX_FLOAT ctrlX2,
                              FX_FLOAT ctrlY2,
                              FX_FLOAT endX,
                              FX_FLOAT endY) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddBezier(startX, startY, ctrlX1, ctrlY1, ctrlX2, ctrlY2, endX,
                         endY);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddRectangle(FX_FLOAT left,
                                 FX_FLOAT top,
                                 FX_FLOAT width,
                                 FX_FLOAT height) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddRectangle(left, top, left + width, top + height);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddEllipse(FX_FLOAT left,
                               FX_FLOAT top,
                               FX_FLOAT width,
                               FX_FLOAT height) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddEllipse(left + width / 2, top + height / 2, width / 2,
                          height / 2);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddEllipse(const CFX_RectF& rect) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddEllipse(rect.left + rect.Width() / 2,
                          rect.top + rect.Height() / 2, rect.Width() / 2,
                          rect.Height() / 2);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddArc(FX_FLOAT left,
                           FX_FLOAT top,
                           FX_FLOAT width,
                           FX_FLOAT height,
                           FX_FLOAT startAngle,
                           FX_FLOAT sweepAngle) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddArc(left + width / 2, top + height / 2, width / 2, height / 2,
                      startAngle, sweepAngle);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddPie(FX_FLOAT left,
                           FX_FLOAT top,
                           FX_FLOAT width,
                           FX_FLOAT height,
                           FX_FLOAT startAngle,
                           FX_FLOAT sweepAngle) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddPie(left + width / 2, top + height / 2, width / 2, height / 2,
                      startAngle, sweepAngle);
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::AddSubpath(CFX_Path* path) {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->AddPathData(path->GetPathData());
  return FWL_Error::Succeeded;
}

FWL_Error CFX_Path::Clear() {
  if (!m_generator)
    return FWL_Error::PropertyInvalid;
  m_generator->GetPathData()->SetPointCount(0);
  return FWL_Error::Succeeded;
}

bool CFX_Path::IsEmpty() const {
  if (!m_generator)
    return false;
  if (m_generator->GetPathData()->GetPointCount() == 0)
    return true;
  return false;
}

CFX_PathData* CFX_Path::GetPathData() const {
  if (!m_generator)
    return nullptr;
  return m_generator->GetPathData();
}