C++ CFX_FloatRect::Intersect方法代码示例

CFX_FloatRect CPDF_ClipPath::GetClipBox() const {
  CFX_FloatRect rect;
  bool bStarted = false;
  if (GetPathCount() > 0) {
    rect = GetPath(0).GetBoundingBox();
    for (size_t i = 1; i < GetPathCount(); ++i) {
      CFX_FloatRect path_rect = GetPath(i).GetBoundingBox();
      rect.Intersect(path_rect);
    }
    bStarted = true;
  }

  CFX_FloatRect layer_rect;
  bool bLayerStarted = false;
  for (size_t i = 0; i < GetTextCount(); ++i) {
    CPDF_TextObject* pTextObj = GetText(i);
    if (pTextObj) {
      if (bLayerStarted) {
        layer_rect.Union(CFX_FloatRect(pTextObj->GetBBox()));
      } else {
        layer_rect = CFX_FloatRect(pTextObj->GetBBox());
        bLayerStarted = true;
      }
    } else {
      if (bStarted) {
        rect.Intersect(layer_rect);
      } else {
        rect = layer_rect;
        bStarted = true;
      }
      bLayerStarted = false;
    }
  }
  return rect;
}

void CPWL_ListBox::DrawThisAppearance(CFX_RenderDevice* pDevice,
                                      CFX_Matrix* pUser2Device) {
  CPWL_Wnd::DrawThisAppearance(pDevice, pUser2Device);

  if (m_pList) {
    CFX_FloatRect rcPlate = m_pList->GetPlateRect();
    CFX_FloatRect rcList = GetListRect();
    CFX_FloatRect rcClient = GetClientRect();

    for (int32_t i = 0, sz = m_pList->GetCount(); i < sz; i++) {
      CFX_FloatRect rcItem = m_pList->GetItemRect(i);
      if (rcItem.bottom > rcPlate.top || rcItem.top < rcPlate.bottom)
        continue;

      CFX_FloatPoint ptOffset(rcItem.left, (rcItem.top + rcItem.bottom) * 0.5f);
      if (IFX_Edit* pEdit = m_pList->GetItemEdit(i)) {
        CFX_FloatRect rcContent = pEdit->GetContentRect();
        if (rcContent.Width() > rcClient.Width())
          rcItem.Intersect(rcList);
        else
          rcItem.Intersect(rcClient);
      }

      if (m_pList->IsItemSelected(i)) {
        CFX_SystemHandler* pSysHandler = GetSystemHandler();
        if (pSysHandler && pSysHandler->IsSelectionImplemented()) {
          IFX_Edit::DrawEdit(
              pDevice, pUser2Device, m_pList->GetItemEdit(i),
              CPWL_Utils::PWLColorToFXColor(GetTextColor()),
              CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()), rcList,
              ptOffset, nullptr, pSysHandler, m_pFormFiller);
          pSysHandler->OutputSelectedRect(m_pFormFiller, rcItem);
        } else {
          CPWL_Utils::DrawFillRect(pDevice, pUser2Device, rcItem,
                                   ArgbEncode(255, 0, 51, 113));
          IFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
                             ArgbEncode(255, 255, 255, 255), 0, rcList,
                             ptOffset, nullptr, pSysHandler, m_pFormFiller);
        }
      } else {
        CFX_SystemHandler* pSysHandler = GetSystemHandler();
        IFX_Edit::DrawEdit(pDevice, pUser2Device, m_pList->GetItemEdit(i),
                           CPWL_Utils::PWLColorToFXColor(GetTextColor()),
                           CPWL_Utils::PWLColorToFXColor(GetTextStrokeColor()),
                           rcList, ptOffset, nullptr, pSysHandler, nullptr);
      }
    }
  }
}

void CPWL_Caret::DrawThisAppearance(CFX_RenderDevice* pDevice,
                                    CFX_Matrix* pUser2Device) {
  if (IsVisible() && m_bFlash) {
    CFX_FloatRect rcRect = GetCaretRect();
    CFX_FloatRect rcClip = GetClipRect();
    CFX_PathData path;
    path.SetPointCount(2);

    FX_FLOAT fCaretX = rcRect.left + m_fWidth * 0.5f;
    FX_FLOAT fCaretTop = rcRect.top;
    FX_FLOAT fCaretBottom = rcRect.bottom;
    if (!rcClip.IsEmpty()) {
      rcRect.Intersect(rcClip);
      if (!rcRect.IsEmpty()) {
        fCaretTop = rcRect.top;
        fCaretBottom = rcRect.bottom;
        path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO);
        path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO);
      } else {
        return;
      }
    } else {
      path.SetPoint(0, fCaretX, fCaretBottom, FXPT_MOVETO);
      path.SetPoint(1, fCaretX, fCaretTop, FXPT_LINETO);
    }

    CFX_GraphStateData gsd;
    gsd.m_LineWidth = m_fWidth;
    pDevice->DrawPath(&path, pUser2Device, &gsd, 0, ArgbEncode(255, 0, 0, 0),
                      FXFILL_ALTERNATE);
  }
}

CFX_FloatRect CPWL_ListBox::GetFocusRect() const {
  if (m_pList->IsMultipleSel()) {
    CFX_FloatRect rcCaret = m_pList->GetItemRect(m_pList->GetCaret());
    rcCaret.Intersect(GetClientRect());
    return rcCaret;
  }

  return CPWL_Wnd::GetFocusRect();
}

bool CPDF_TextPage::IsSameTextObject(CPDF_TextObject* pTextObj1,
                                     CPDF_TextObject* pTextObj2) {
  if (!pTextObj1 || !pTextObj2)
    return false;

  CFX_FloatRect rcPreObj = pTextObj2->GetRect();
  const CFX_FloatRect& rcCurObj = pTextObj1->GetRect();
  if (rcPreObj.IsEmpty() && rcCurObj.IsEmpty()) {
    float dbXdif = fabs(rcPreObj.left - rcCurObj.left);
    size_t nCount = m_CharList.size();
    if (nCount >= 2) {
      PAGECHAR_INFO perCharTemp = m_CharList[nCount - 2];
      float dbSpace = perCharTemp.m_CharBox.Width();
      if (dbXdif > dbSpace)
        return false;
    }
  }
  if (!rcPreObj.IsEmpty() || !rcCurObj.IsEmpty()) {
    rcPreObj.Intersect(rcCurObj);
    if (rcPreObj.IsEmpty())
      return false;
    if (fabs(rcPreObj.Width() - rcCurObj.Width()) > rcCurObj.Width() / 2) {
      return false;
    }
    if (pTextObj2->GetFontSize() != pTextObj1->GetFontSize())
      return false;
  }

  size_t nPreCount = pTextObj2->CountItems();
  if (nPreCount != pTextObj1->CountItems())
    return false;

  // If both objects have no items, consider them same.
  if (nPreCount == 0)
    return true;

  CPDF_TextObjectItem itemPer;
  CPDF_TextObjectItem itemCur;
  for (size_t i = 0; i < nPreCount; ++i) {
    pTextObj2->GetItemInfo(i, &itemPer);
    pTextObj1->GetItemInfo(i, &itemCur);
    if (itemCur.m_CharCode != itemPer.m_CharCode)
      return false;
  }

  CFX_PointF diff = pTextObj1->GetPos() - pTextObj2->GetPos();
  float font_size = pTextObj2->GetFontSize();
  float char_size = GetCharWidth(itemPer.m_CharCode, pTextObj2->GetFont());
  float max_pre_size =
      std::max(std::max(rcPreObj.Height(), rcPreObj.Width()), font_size);
  return fabs(diff.x) <= 0.9 * char_size * font_size / 1000 &&
         fabs(diff.y) <= max_pre_size / 8;
}

CFX_FloatRect CPDF_ClipPath::GetClipBox() const {
  CFX_FloatRect rect;
  bool bStarted = false;
  int count = GetPathCount();
  if (count) {
    rect = GetPath(0).GetBoundingBox();
    for (int i = 1; i < count; i++) {
      CFX_FloatRect path_rect = GetPath(i).GetBoundingBox();
      rect.Intersect(path_rect);
    }
    bStarted = true;
  }
  count = GetTextCount();
  if (count) {
    CFX_FloatRect layer_rect;
    bool bLayerStarted = false;
    for (int i = 0; i < count; i++) {
      CPDF_TextObject* pTextObj = GetText(i);
      if (!pTextObj) {
        if (!bStarted) {
          rect = layer_rect;
          bStarted = true;
        } else {
          rect.Intersect(layer_rect);
        }
        bLayerStarted = false;
      } else {
        if (!bLayerStarted) {
          layer_rect = CFX_FloatRect(pTextObj->GetBBox(nullptr));
          bLayerStarted = true;
        } else {
          layer_rect.Union(CFX_FloatRect(pTextObj->GetBBox(nullptr)));
        }
      }
    }
  }
  return rect;
}

void CPDF_StreamContentParser::Handle_ShadeFill() {
  if (m_Options.m_bTextOnly) {
    return;
  }
  CPDF_Pattern* pPattern = FindPattern(GetString(0), TRUE);
  if (!pPattern) {
    return;
  }
  if (pPattern->m_PatternType != CPDF_Pattern::SHADING) {
    return;
  }
  CPDF_ShadingPattern* pShading = static_cast<CPDF_ShadingPattern*>(pPattern);
  if (!pShading->m_bShadingObj) {
    return;
  }
  if (!pShading->Load()) {
    return;
  }
  CPDF_ShadingObject* pObj = new CPDF_ShadingObject;
  pObj->m_pShading = pShading;
  SetGraphicStates(pObj, FALSE, FALSE, FALSE);
  pObj->m_Matrix = m_pCurStates->m_CTM;
  pObj->m_Matrix.Concat(m_mtContentToUser);
  CFX_FloatRect bbox;
  if (!pObj->m_ClipPath.IsNull()) {
    bbox = pObj->m_ClipPath.GetClipBox();
  } else {
    bbox = m_BBox;
  }
  if (pShading->IsMeshShading()) {
    bbox.Intersect(GetShadingBBox(ToStream(pShading->m_pShadingObj),
                                  pShading->m_ShadingType, &pObj->m_Matrix,
                                  pShading->m_pFunctions, pShading->m_nFuncs,
                                  pShading->m_pCS));
  }
  pObj->m_Left = bbox.left;
  pObj->m_Right = bbox.right;
  pObj->m_Top = bbox.top;
  pObj->m_Bottom = bbox.bottom;
  m_pObjectList->m_ObjectList.AddTail(pObj);
}

void CPWL_Wnd::InvalidateRect(CFX_FloatRect* pRect) {
  if (IsValid()) {
    CFX_FloatRect rcRefresh = pRect ? *pRect : GetWindowRect();

    if (!HasFlag(PWS_NOREFRESHCLIP)) {
      CFX_FloatRect rcClip = GetClipRect();
      if (!rcClip.IsEmpty()) {
        rcRefresh.Intersect(rcClip);
      }
    }

    FX_RECT rcWin = PWLtoWnd(rcRefresh);
    rcWin.left -= PWL_INVALIDATE_INFLATE;
    rcWin.top -= PWL_INVALIDATE_INFLATE;
    rcWin.right += PWL_INVALIDATE_INFLATE;
    rcWin.bottom += PWL_INVALIDATE_INFLATE;

    if (CFX_SystemHandler* pSH = GetSystemHandler()) {
      if (FX_HWND hWnd = GetAttachedHWnd()) {
        pSH->InvalidateRect(hWnd, rcWin);
      }
    }
  }
}