C++ FX_RECT类代码示例

FX_BOOL CFX_GEFont::GetCharBBox(FX_WCHAR wUnicode,
                                CFX_Rect& bbox,
                                FX_BOOL bRecursive,
                                FX_BOOL bCharCode) {
  FXSYS_assert(m_pRectArray != NULL);
  FXSYS_assert(m_pBBoxMap != NULL);
  void* pRect = NULL;
  if (!m_pBBoxMap->Lookup((void*)(uintptr_t)wUnicode, pRect)) {
    IFX_Font* pFont = NULL;
    int32_t iGlyph = GetGlyphIndex(wUnicode, TRUE, &pFont, bCharCode);
    if (iGlyph != 0xFFFF && pFont != NULL) {
      if (pFont == (IFX_Font*)this) {
        FX_RECT rtBBox;
        if (m_pFont->GetGlyphBBox(iGlyph, rtBBox)) {
          Lock();
          CFX_Rect rt;
          rt.Set(rtBBox.left, rtBBox.top, rtBBox.Width(), rtBBox.Height());
          int32_t index = m_pRectArray->Add(rt);
          pRect = m_pRectArray->GetPtrAt(index);
          m_pBBoxMap->SetAt((void*)(uintptr_t)wUnicode, pRect);
          Unlock();
        }
      } else if (((CFX_GEFont*)pFont)
                     ->GetCharBBox(wUnicode, bbox, FALSE, bCharCode)) {
        return TRUE;
      }
    }
  }
  if (pRect == NULL) {
    return FALSE;
  }
  bbox = *(FX_LPCRECT)pRect;
  return TRUE;
}

FX_BOOL CFGAS_GEFont::GetCharBBoxInternal(FX_WCHAR wUnicode,
                                          CFX_Rect& bbox,
                                          FX_BOOL bRecursive,
                                          FX_BOOL bCharCode) {
  ASSERT(m_pRectArray);
  ASSERT(m_pBBoxMap);
  void* pRect = nullptr;
  if (!m_pBBoxMap->Lookup((void*)(uintptr_t)wUnicode, pRect)) {
    CFGAS_GEFont* pFont = nullptr;
    int32_t iGlyph = GetGlyphIndex(wUnicode, TRUE, &pFont, bCharCode);
    if (iGlyph != 0xFFFF && pFont) {
      if (pFont == this) {
        FX_RECT rtBBox;
        if (m_pFont->GetGlyphBBox(iGlyph, rtBBox)) {
          CFX_Rect rt;
          rt.Set(rtBBox.left, rtBBox.top, rtBBox.Width(), rtBBox.Height());
          int32_t index = m_pRectArray->Add(rt);
          pRect = m_pRectArray->GetPtrAt(index);
          m_pBBoxMap->SetAt((void*)(uintptr_t)wUnicode, pRect);
        }
      } else if (pFont->GetCharBBoxInternal(wUnicode, bbox, FALSE, bCharCode)) {
        return TRUE;
      }
    }
  }
  if (!pRect)
    return FALSE;

  bbox = *static_cast<const CFX_Rect*>(pRect);
  return TRUE;
}

FX_RECT CFX_FloatRect::GetClosestRect() const {
    CFX_FloatRect rect1 = *this;
    FX_RECT rect;
    _MatchFloatRange(rect1.left, rect1.right, rect.left, rect.right);
    _MatchFloatRange(rect1.bottom, rect1.top, rect.top, rect.bottom);
    rect.Normalize();
    return rect;
}

void FX_RECT::Union(const FX_RECT& other_rect) {
    Normalize();
    FX_RECT other = other_rect;
    other.Normalize();
    left = left < other.left ? left : other.left;
    right = right > other.right ? right : other.right;
    bottom = bottom > other.bottom ? bottom : other.bottom;
    top = top < other.top ? top : other.top;
}

FX_RECT CFX_FloatRect::GetInnerRect() const {
    CFX_FloatRect rect1 = *this;
    FX_RECT rect;
    rect.left = (int)FXSYS_ceil(rect1.left);
    rect.right = (int)FXSYS_floor(rect1.right);
    rect.top = (int)FXSYS_ceil(rect1.bottom);
    rect.bottom = (int)FXSYS_floor(rect1.top);
    rect.Normalize();
    return rect;
}

FX_BOOL CPDF_RenderStatus::ProcessShading(CPDF_ShadingObject* pShadingObj,
                                          const CFX_Matrix* pObj2Device) {
  FX_RECT rect = pShadingObj->GetBBox(pObj2Device);
  FX_RECT clip_box = m_pDevice->GetClipBox();
  rect.Intersect(clip_box);
  if (rect.IsEmpty()) {
    return TRUE;
  }
  CFX_Matrix matrix = pShadingObj->m_Matrix;
  matrix.Concat(*pObj2Device);
  DrawShading(pShadingObj->m_pShading, &matrix, rect,
              pShadingObj->m_GeneralState.GetAlpha(FALSE),
              m_Options.m_ColorMode == RENDER_COLOR_ALPHA);
  return TRUE;
}

FX_FLOAT CPWL_Edit::GetCharArrayAutoFontSize(CPDF_Font* pFont,
                                             const CPDF_Rect& rcPlate,
                                             int32_t nCharArray) {
  if (pFont && !pFont->IsStandardFont()) {
    FX_RECT rcBBox;
    pFont->GetFontBBox(rcBBox);

    CPDF_Rect rcCell = rcPlate;
    FX_FLOAT xdiv = rcCell.Width() / nCharArray * 1000.0f / rcBBox.Width();
    FX_FLOAT ydiv = -rcCell.Height() * 1000.0f / rcBBox.Height();

    return xdiv < ydiv ? xdiv : ydiv;
  }

  return 0.0f;
}

FX_BOOL CFFL_FormFiller::OnLButtonDown(CPDFSDK_PageView* pPageView,
                                       CPDFSDK_Annot* pAnnot,
                                       FX_UINT nFlags,
                                       const CPDF_Point& point) {
  if (CPWL_Wnd* pWnd = GetPDFWindow(pPageView, TRUE)) {
    m_bValid = TRUE;
    FX_RECT rect = GetViewBBox(pPageView, pAnnot);
    InvalidateRect(rect.left, rect.top, rect.right, rect.bottom);

    if (!rect.Contains((int)point.x, (int)point.y))
      return FALSE;

    return pWnd->OnLButtonDown(WndtoPWL(pPageView, point), nFlags);
  }

  return FALSE;
}

FX_FLOAT CPDF_TextObject::GetSpaceCharWidth() const {
  CPDF_Font* pFont = m_TextState.GetFont();
  FX_DWORD charCode = m_TextState.GetFont()->CharCodeFromUnicode(32);
  if (charCode != (FX_DWORD)-1) {
    return GetCharWidth(charCode);
  }
  FX_FLOAT fontSize = m_TextState.GetFontSize() / 4000.0f;
  FX_BOOL bVertWriting = FALSE;
  CPDF_CIDFont* pCIDFont = pFont->GetCIDFont();
  if (pCIDFont) {
    bVertWriting = pCIDFont->IsVertWriting();
  }
  FX_RECT fontRect;
  pFont->GetFontBBox(fontRect);
  fontSize *=
      bVertWriting ? (FX_FLOAT)fontRect.Height() : (FX_FLOAT)fontRect.Width();
  return fontSize;
}

CFX_DIBitmap* CPDF_RenderStatus::GetBackdrop(const CPDF_PageObject* pObj,
                                             const FX_RECT& rect,
                                             int& left,
                                             int& top,
                                             FX_BOOL bBackAlphaRequired) {
  FX_RECT bbox = rect;
  bbox.Intersect(m_pDevice->GetClipBox());
  left = bbox.left;
  top = bbox.top;
  CFX_Matrix deviceCTM = m_pDevice->GetCTM();
  FX_FLOAT scaleX = FXSYS_fabs(deviceCTM.a);
  FX_FLOAT scaleY = FXSYS_fabs(deviceCTM.d);
  int width = FXSYS_round(bbox.Width() * scaleX);
  int height = FXSYS_round(bbox.Height() * scaleY);
  std::unique_ptr<CFX_DIBitmap> pBackdrop(new CFX_DIBitmap);
  if (bBackAlphaRequired && !m_bDropObjects)
    pBackdrop->Create(width, height, FXDIB_Argb);
  else
    m_pDevice->CreateCompatibleBitmap(pBackdrop.get(), width, height);

  if (!pBackdrop->GetBuffer())
    return nullptr;

  FX_BOOL bNeedDraw;
  if (pBackdrop->HasAlpha())
    bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_ALPHA_OUTPUT);
  else
    bNeedDraw = !(m_pDevice->GetRenderCaps() & FXRC_GET_BITS);

  if (!bNeedDraw) {
    m_pDevice->GetDIBits(pBackdrop.get(), left, top);
    return pBackdrop.release();
  }

  CFX_Matrix FinalMatrix = m_DeviceMatrix;
  FinalMatrix.TranslateI(-left, -top);
  FinalMatrix.Scale(scaleX, scaleY);
  pBackdrop->Clear(pBackdrop->HasAlpha() ? 0 : 0xffffffff);
  CFX_FxgeDevice device;
  device.Attach(pBackdrop.get(), false, nullptr, false);
  m_pContext->Render(&device, pObj, &m_Options, &FinalMatrix);
  return pBackdrop.release();
}

FX_RECT _FXDIB_SwapClipBox(FX_RECT& clip, int width, int height, FX_BOOL bFlipX, FX_BOOL bFlipY)
{
    FX_RECT rect;
    if (bFlipY) {
        rect.left = height - clip.top;
        rect.right = height - clip.bottom;
    } else {
        rect.left = clip.top;
        rect.right = clip.bottom;
    }
    if (bFlipX) {
        rect.top = width - clip.left;
        rect.bottom = width - clip.right;
    } else {
        rect.top = clip.left;
        rect.bottom = clip.right;
    }
    rect.Normalize();
    return rect;
}

void CPDF_ImageRenderer::CalculateDrawImage(CFX_FxgeDevice* pBitmapDevice1,
                                            CFX_FxgeDevice* pBitmapDevice2,
                                            const CFX_DIBSource* pDIBSource,
                                            CFX_Matrix* pNewMatrix,
                                            const FX_RECT& rect) const {
  CPDF_RenderStatus bitmap_render;
  bitmap_render.Initialize(m_pRenderStatus->m_pContext, pBitmapDevice2, nullptr,
                           nullptr, nullptr, nullptr, nullptr, 0,
                           m_pRenderStatus->m_bDropObjects, nullptr, true);
  CPDF_ImageRenderer image_render;
  if (image_render.Start(&bitmap_render, pDIBSource, 0xffffffff, 255,
                         pNewMatrix, m_Flags, true, FXDIB_BLEND_NORMAL)) {
    image_render.Continue(nullptr);
  }
  if (m_Loader.m_MatteColor == 0xffffffff)
    return;
  int matte_r = FXARGB_R(m_Loader.m_MatteColor);
  int matte_g = FXARGB_G(m_Loader.m_MatteColor);
  int matte_b = FXARGB_B(m_Loader.m_MatteColor);
  for (int row = 0; row < rect.Height(); row++) {
    uint8_t* dest_scan =
        const_cast<uint8_t*>(pBitmapDevice1->GetBitmap()->GetScanline(row));
    const uint8_t* mask_scan = pBitmapDevice2->GetBitmap()->GetScanline(row);
    for (int col = 0; col < rect.Width(); col++) {
      int alpha = *mask_scan++;
      if (!alpha) {
        dest_scan += 4;
        continue;
      }
      int orig = (*dest_scan - matte_b) * 255 / alpha + matte_b;
      *dest_scan++ = std::min(std::max(orig, 0), 255);
      orig = (*dest_scan - matte_g) * 255 / alpha + matte_g;
      *dest_scan++ = std::min(std::max(orig, 0), 255);
      orig = (*dest_scan - matte_r) * 255 / alpha + matte_r;
      *dest_scan++ = std::min(std::max(orig, 0), 255);
      dest_scan++;
    }
  }
}

STDMETHODIMP CDwGdiTextRenderer::DrawGlyphRun(
    const FX_RECT& text_bbox,
    __in_opt CFX_ClipRgn* pClipRgn,
    __in_opt DWRITE_MATRIX const* pMatrix,
    FLOAT baselineOriginX,
    FLOAT baselineOriginY,
    DWRITE_MEASURING_MODE measuringMode,
    __in DWRITE_GLYPH_RUN const* glyphRun,
    const COLORREF& textColor) {
  HRESULT hr = S_OK;
  if (pMatrix) {
    hr = pRenderTarget_->SetCurrentTransform(pMatrix);
    if (FAILED(hr)) {
      return hr;
    }
  }
  HDC hDC = pRenderTarget_->GetMemoryDC();
  HBITMAP hBitmap = (HBITMAP)::GetCurrentObject(hDC, OBJ_BITMAP);
  BITMAP bitmap;
  GetObject(hBitmap, sizeof bitmap, &bitmap);
  CFX_DIBitmap dib;
  dib.Create(bitmap.bmWidth, bitmap.bmHeight,
             bitmap.bmBitsPixel == 24 ? FXDIB_Rgb : FXDIB_Rgb32,
             (uint8_t*)bitmap.bmBits);
  dib.CompositeBitmap(text_bbox.left, text_bbox.top, text_bbox.Width(),
                      text_bbox.Height(), pBitmap_, text_bbox.left,
                      text_bbox.top, FXDIB_BLEND_NORMAL, nullptr);
  hr = pRenderTarget_->DrawGlyphRun(baselineOriginX, baselineOriginY,
                                    measuringMode, glyphRun, pRenderingParams_,
                                    textColor);
  if (FAILED(hr)) {
    return hr;
  }
  pBitmap_->CompositeBitmap(text_bbox.left, text_bbox.top, text_bbox.Width(),
                            text_bbox.Height(), &dib, text_bbox.left,
                            text_bbox.top, FXDIB_BLEND_NORMAL, pClipRgn);
  return hr;
}

bool CPDF_ImageRenderer::DrawMaskedImage() {
  if (NotDrawing()) {
    m_Result = false;
    return false;
  }

  FX_RECT rect = GetDrawRect();
  if (rect.IsEmpty())
    return false;

  CFX_Matrix new_matrix = GetDrawMatrix(rect);
  CFX_FxgeDevice bitmap_device1;
  if (!bitmap_device1.Create(rect.Width(), rect.Height(), FXDIB_Rgb32, nullptr))
    return true;

#if defined _SKIA_SUPPORT_
  bitmap_device1.Clear(0xffffff);
#else
  bitmap_device1.GetBitmap()->Clear(0xffffff);
#endif
  CPDF_RenderStatus bitmap_render;
  bitmap_render.Initialize(m_pRenderStatus->m_pContext, &bitmap_device1,
                           nullptr, nullptr, nullptr, nullptr, nullptr, 0,
                           m_pRenderStatus->m_bDropObjects, nullptr, true);
  CPDF_ImageRenderer image_render;
  if (image_render.Start(&bitmap_render, m_pDIBSource, 0, 255, &new_matrix,
                         m_Flags, true, FXDIB_BLEND_NORMAL)) {
    image_render.Continue(nullptr);
  }
  CFX_FxgeDevice bitmap_device2;
  if (!bitmap_device2.Create(rect.Width(), rect.Height(), FXDIB_8bppRgb,
                             nullptr))
    return true;

#if defined _SKIA_SUPPORT_
  bitmap_device2.Clear(0);
#else
  bitmap_device2.GetBitmap()->Clear(0);
#endif
  CalculateDrawImage(&bitmap_device1, &bitmap_device2, m_Loader.m_pMask,
                     &new_matrix, rect);
#ifdef _SKIA_SUPPORT_
  m_pRenderStatus->m_pDevice->SetBitsWithMask(
      bitmap_device1.GetBitmap(), bitmap_device2.GetBitmap(), rect.left,
      rect.top, m_BitmapAlpha, m_BlendType);
#else
  bitmap_device2.GetBitmap()->ConvertFormat(FXDIB_8bppMask);
  bitmap_device1.GetBitmap()->MultiplyAlpha(bitmap_device2.GetBitmap());
  if (m_BitmapAlpha < 255)
    bitmap_device1.GetBitmap()->MultiplyAlpha(m_BitmapAlpha);
  m_pRenderStatus->m_pDevice->SetDIBitsWithBlend(
      bitmap_device1.GetBitmap(), rect.left, rect.top, m_BlendType);
#endif  //  _SKIA_SUPPORT_
  return false;
}

FX_BOOL CPDF_RenderStatus::GetObjectClippedRect(const CPDF_PageObject* pObj,
                                                const CFX_Matrix* pObj2Device,
                                                FX_BOOL bLogical,
                                                FX_RECT& rect) const {
  rect = pObj->GetBBox(pObj2Device);
  FX_RECT rtClip = m_pDevice->GetClipBox();
  if (!bLogical) {
    CFX_Matrix dCTM = m_pDevice->GetCTM();
    FX_FLOAT a = FXSYS_fabs(dCTM.a);
    FX_FLOAT d = FXSYS_fabs(dCTM.d);
    if (a != 1.0f || d != 1.0f) {
      rect.right = rect.left + (int32_t)FXSYS_ceil((FX_FLOAT)rect.Width() * a);
      rect.bottom = rect.top + (int32_t)FXSYS_ceil((FX_FLOAT)rect.Height() * d);
      rtClip.right =
          rtClip.left + (int32_t)FXSYS_ceil((FX_FLOAT)rtClip.Width() * a);
      rtClip.bottom =
          rtClip.top + (int32_t)FXSYS_ceil((FX_FLOAT)rtClip.Height() * d);
    }
  }
  rect.Intersect(rtClip);
  return rect.IsEmpty();
}