Cleanup the xfa/src/fdp directory.

This CL renames xfa/src/fdp to xfa/src/fde to better match all of the content
(nothing mentions fdp other then the directory name). The inner src/ and
include/ folders are collapsed up a level and xfa/src/fdp/src/fde is moved
up to xfa/src/fde.

Some of the header moves conflicted with existing headers. In that case, the
existing header had the content moved into the .cpp file and we replaced the
existing header with the one from include/.

R=tsepez@chromium.org

Review URL: https://codereview.chromium.org/1784543002 .

1 files changed, 291 insertions, 0 deletions

diff --git a/xfa/src/fde/fde_render.cpp b/xfa/src/fde/fde_render.cpp
new file mode 100644
index 0000000000..b4330cc084
--- /dev/null
+++ b/xfa/src/fde/fde_render.cpp
@@ -0,0 +1,291 @@
+// Copyright 2014 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/src/fde/fde_render.h"
+
+#include "xfa/src/fde/fde_renderdevice.h"
+#include "xfa/src/fgas/crt/fgas_memory.h"
+
+#define FDE_PATHRENDER_Stroke 1
+#define FDE_PATHRENDER_Fill 2
+
+namespace {
+
+class CFDE_RenderContext : public IFDE_RenderContext,
+                           public CFX_Target {
+ public:
+  CFDE_RenderContext();
+  virtual ~CFDE_RenderContext();
+  virtual void Release() { delete this; }
+  virtual FX_BOOL StartRender(IFDE_RenderDevice* pRenderDevice,
+                              IFDE_CanvasSet* pCanvasSet,
+                              const CFX_Matrix& tmDoc2Device);
+  virtual FDE_RENDERSTATUS GetStatus() const { return m_eStatus; }
+  virtual FDE_RENDERSTATUS DoRender(IFX_Pause* pPause = NULL);
+  virtual void StopRender();
+  void RenderPath(IFDE_PathSet* pPathSet, FDE_HVISUALOBJ hPath);
+  void RenderText(IFDE_TextSet* pTextSet, FDE_HVISUALOBJ hText);
+  FX_BOOL ApplyClip(IFDE_VisualSet* pVisualSet,
+                    FDE_HVISUALOBJ hObj,
+                    FDE_HDEVICESTATE& hState);
+  void RestoreClip(FDE_HDEVICESTATE hState);
+
+ protected:
+  FDE_RENDERSTATUS m_eStatus;
+  IFDE_RenderDevice* m_pRenderDevice;
+  IFDE_SolidBrush* m_pSolidBrush;
+  CFX_Matrix m_Transform;
+  FXTEXT_CHARPOS* m_pCharPos;
+  int32_t m_iCharPosCount;
+  IFDE_VisualSetIterator* m_pIterator;
+};
+
+}  // namespace
+
+void FDE_GetPageMatrix(CFX_Matrix& pageMatrix,
+                       const CFX_RectF& docPageRect,
+                       const CFX_Rect& devicePageRect,
+                       int32_t iRotate,
+                       FX_DWORD dwCoordinatesType) {
+  FXSYS_assert(iRotate >= 0 && iRotate <= 3);
+  FX_BOOL bFlipX = (dwCoordinatesType & 0x01) != 0;
+  FX_BOOL bFlipY = (dwCoordinatesType & 0x02) != 0;
+  CFX_Matrix m;
+  m.Set((bFlipX ? -1.0f : 1.0f), 0, 0, (bFlipY ? -1.0f : 1.0f), 0, 0);
+  if (iRotate == 0 || iRotate == 2) {
+    m.a *= (FX_FLOAT)devicePageRect.width / docPageRect.width;
+    m.d *= (FX_FLOAT)devicePageRect.height / docPageRect.height;
+  } else {
+    m.a *= (FX_FLOAT)devicePageRect.height / docPageRect.width;
+    m.d *= (FX_FLOAT)devicePageRect.width / docPageRect.height;
+  }
+  m.Rotate(iRotate * 1.57079632675f);
+  switch (iRotate) {
+    case 0:
+      m.e = bFlipX ? (FX_FLOAT)devicePageRect.right()
+                   : (FX_FLOAT)devicePageRect.left;
+      m.f = bFlipY ? (FX_FLOAT)devicePageRect.bottom()
+                   : (FX_FLOAT)devicePageRect.top;
+      break;
+    case 1:
+      m.e = bFlipY ? (FX_FLOAT)devicePageRect.left
+                   : (FX_FLOAT)devicePageRect.right();
+      m.f = bFlipX ? (FX_FLOAT)devicePageRect.bottom()
+                   : (FX_FLOAT)devicePageRect.top;
+      break;
+    case 2:
+      m.e = bFlipX ? (FX_FLOAT)devicePageRect.left
+                   : (FX_FLOAT)devicePageRect.right();
+      m.f = bFlipY ? (FX_FLOAT)devicePageRect.top
+                   : (FX_FLOAT)devicePageRect.bottom();
+      break;
+    case 3:
+      m.e = bFlipY ? (FX_FLOAT)devicePageRect.right()
+                   : (FX_FLOAT)devicePageRect.left;
+      m.f = bFlipX ? (FX_FLOAT)devicePageRect.top
+                   : (FX_FLOAT)devicePageRect.bottom();
+      break;
+    default:
+      break;
+  }
+  pageMatrix = m;
+}
+IFDE_RenderContext* IFDE_RenderContext::Create() {
+  return new CFDE_RenderContext;
+}
+CFDE_RenderContext::CFDE_RenderContext()
+    : m_eStatus(FDE_RENDERSTATUS_Reset),
+      m_pRenderDevice(NULL),
+      m_pSolidBrush(NULL),
+      m_Transform(),
+      m_pCharPos(NULL),
+      m_iCharPosCount(0),
+      m_pIterator(NULL) {
+  m_Transform.SetIdentity();
+}
+CFDE_RenderContext::~CFDE_RenderContext() {
+  StopRender();
+}
+FX_BOOL CFDE_RenderContext::StartRender(IFDE_RenderDevice* pRenderDevice,
+                                        IFDE_CanvasSet* pCanvasSet,
+                                        const CFX_Matrix& tmDoc2Device) {
+  if (m_pRenderDevice != NULL) {
+    return FALSE;
+  }
+  if (pRenderDevice == NULL) {
+    return FALSE;
+  }
+  if (pCanvasSet == NULL) {
+    return FALSE;
+  }
+
+  m_eStatus = FDE_RENDERSTATUS_Paused;
+  m_pRenderDevice = pRenderDevice;
+  m_Transform = tmDoc2Device;
+  if (m_pIterator == NULL) {
+    m_pIterator = IFDE_VisualSetIterator::Create();
+    FXSYS_assert(m_pIterator != NULL);
+  }
+  return m_pIterator->AttachCanvas(pCanvasSet) && m_pIterator->FilterObjects();
+}
+FDE_RENDERSTATUS CFDE_RenderContext::DoRender(IFX_Pause* pPause) {
+  if (m_pRenderDevice == NULL) {
+    return FDE_RENDERSTATUS_Failed;
+  }
+  if (m_pIterator == NULL) {
+    return FDE_RENDERSTATUS_Failed;
+  }
+  FDE_RENDERSTATUS eStatus = FDE_RENDERSTATUS_Paused;
+  CFX_Matrix rm;
+  rm.SetReverse(m_Transform);
+  CFX_RectF rtDocClip = m_pRenderDevice->GetClipRect();
+  if (rtDocClip.IsEmpty()) {
+    rtDocClip.left = rtDocClip.top = 0;
+    rtDocClip.width = (FX_FLOAT)m_pRenderDevice->GetWidth();
+    rtDocClip.height = (FX_FLOAT)m_pRenderDevice->GetHeight();
+  }
+  rm.TransformRect(rtDocClip);
+  IFDE_VisualSet* pVisualSet;
+  FDE_HVISUALOBJ hVisualObj;
+  CFX_RectF rtObj;
+  int32_t iCount = 0;
+  while (TRUE) {
+    hVisualObj = m_pIterator->GetNext(pVisualSet);
+    if (hVisualObj == NULL || pVisualSet == NULL) {
+      eStatus = FDE_RENDERSTATUS_Done;
+      break;
+    }
+    rtObj.Empty();
+    pVisualSet->GetRect(hVisualObj, rtObj);
+    if (!rtDocClip.IntersectWith(rtObj)) {
+      continue;
+    }
+    switch (pVisualSet->GetType()) {
+      case FDE_VISUALOBJ_Text:
+        RenderText((IFDE_TextSet*)pVisualSet, hVisualObj);
+        iCount += 5;
+        break;
+      case FDE_VISUALOBJ_Path:
+        RenderPath((IFDE_PathSet*)pVisualSet, hVisualObj);
+        iCount += 20;
+        break;
+      case FDE_VISUALOBJ_Widget:
+        iCount += 10;
+        break;
+      case FDE_VISUALOBJ_Canvas:
+        FXSYS_assert(FALSE);
+        break;
+      default:
+        break;
+    }
+    if (iCount >= 100 && pPause != NULL && pPause->NeedToPauseNow()) {
+      eStatus = FDE_RENDERSTATUS_Paused;
+      break;
+    }
+  }
+  return m_eStatus = eStatus;
+}
+void CFDE_RenderContext::StopRender() {
+  m_eStatus = FDE_RENDERSTATUS_Reset;
+  m_pRenderDevice = nullptr;
+  m_Transform.SetIdentity();
+  if (m_pIterator) {
+    m_pIterator->Release();
+    m_pIterator = nullptr;
+  }
+  if (m_pSolidBrush) {
+    m_pSolidBrush->Release();
+    m_pSolidBrush = nullptr;
+  }
+  FX_Free(m_pCharPos);
+  m_pCharPos = nullptr;
+  m_iCharPosCount = 0;
+}
+void CFDE_RenderContext::RenderText(IFDE_TextSet* pTextSet,
+                                    FDE_HVISUALOBJ hText) {
+  FXSYS_assert(m_pRenderDevice != NULL);
+  FXSYS_assert(pTextSet != NULL && hText != NULL);
+  IFX_Font* pFont = pTextSet->GetFont(hText);
+  if (pFont == NULL) {
+    return;
+  }
+  int32_t iCount = pTextSet->GetDisplayPos(hText, NULL, FALSE);
+  if (iCount < 1) {
+    return;
+  }
+  if (m_pSolidBrush == NULL) {
+    m_pSolidBrush = (IFDE_SolidBrush*)IFDE_Brush::Create(FDE_BRUSHTYPE_Solid);
+    if (m_pSolidBrush == NULL) {
+      return;
+    }
+  }
+  if (m_pCharPos == NULL) {
+    m_pCharPos = FX_Alloc(FXTEXT_CHARPOS, iCount);
+  } else if (m_iCharPosCount < iCount) {
+    m_pCharPos = FX_Realloc(FXTEXT_CHARPOS, m_pCharPos, iCount);
+  }
+  if (m_iCharPosCount < iCount) {
+    m_iCharPosCount = iCount;
+  }
+  iCount = pTextSet->GetDisplayPos(hText, m_pCharPos, FALSE);
+  FX_FLOAT fFontSize = pTextSet->GetFontSize(hText);
+  FX_ARGB dwColor = pTextSet->GetFontColor(hText);
+  m_pSolidBrush->SetColor(dwColor);
+  FDE_HDEVICESTATE hState;
+  FX_BOOL bClip = ApplyClip(pTextSet, hText, hState);
+  m_pRenderDevice->DrawString(m_pSolidBrush, pFont, m_pCharPos, iCount,
+                              fFontSize, &m_Transform);
+  if (bClip) {
+    RestoreClip(hState);
+  }
+}
+void CFDE_RenderContext::RenderPath(IFDE_PathSet* pPathSet,
+                                    FDE_HVISUALOBJ hPath) {
+  FXSYS_assert(m_pRenderDevice != NULL);
+  FXSYS_assert(pPathSet != NULL && hPath != NULL);
+  IFDE_Path* pPath = pPathSet->GetPath(hPath);
+  if (pPath == NULL) {
+    return;
+  }
+  FDE_HDEVICESTATE hState;
+  FX_BOOL bClip = ApplyClip(pPathSet, hPath, hState);
+  int32_t iRenderMode = pPathSet->GetRenderMode(hPath);
+  if (iRenderMode & FDE_PATHRENDER_Stroke) {
+    IFDE_Pen* pPen = pPathSet->GetPen(hPath);
+    FX_FLOAT fWidth = pPathSet->GetPenWidth(hPath);
+    if (pPen != NULL && fWidth > 0) {
+      m_pRenderDevice->DrawPath(pPen, fWidth, pPath, &m_Transform);
+    }
+  }
+  if (iRenderMode & FDE_PATHRENDER_Fill) {
+    IFDE_Brush* pBrush = pPathSet->GetBrush(hPath);
+    if (pBrush != NULL) {
+      m_pRenderDevice->FillPath(pBrush, pPath, &m_Transform);
+    }
+  }
+  if (bClip) {
+    RestoreClip(hState);
+  }
+}
+FX_BOOL CFDE_RenderContext::ApplyClip(IFDE_VisualSet* pVisualSet,
+                                      FDE_HVISUALOBJ hObj,
+                                      FDE_HDEVICESTATE& hState) {
+  CFX_RectF rtClip;
+  if (!pVisualSet->GetClip(hObj, rtClip)) {
+    return FALSE;
+  }
+  CFX_RectF rtObj;
+  pVisualSet->GetRect(hObj, rtObj);
+  rtClip.Offset(rtObj.left, rtObj.top);
+  m_Transform.TransformRect(rtClip);
+  const CFX_RectF& rtDevClip = m_pRenderDevice->GetClipRect();
+  rtClip.Intersect(rtDevClip);
+  hState = m_pRenderDevice->SaveState();
+  return m_pRenderDevice->SetClipRect(rtClip);
+}
+void CFDE_RenderContext::RestoreClip(FDE_HDEVICESTATE hState) {
+  m_pRenderDevice->RestoreState(hState);
+}