本文整理汇总了C++中CFX_DIBitmap::ConvertColorScale方法的典型用法代码示例。如果您正苦于以下问题：C++ CFX_DIBitmap::ConvertColorScale方法的具体用法？C++ CFX_DIBitmap::ConvertColorScale怎么用？C++ CFX_DIBitmap::ConvertColorScale使用的例子？那么, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类CFX_DIBitmap的用法示例。
在下文中一共展示了CFX_DIBitmap::ConvertColorScale方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: DrawTilingPattern
//.........这里部分代码省略.........
status.RenderObjectList(pPattern->m_pForm, &matrix);
m_pDevice->RestoreState();
}
m_pDevice->RestoreState();
delete pStates;
return;
}
if (bAligned) {
int orig_x = FXSYS_round(mtPattern2Device.e);
int orig_y = FXSYS_round(mtPattern2Device.f);
min_col = (clip_box.left - orig_x) / width;
if (clip_box.left < orig_x) {
min_col--;
}
max_col = (clip_box.right - orig_x) / width;
if (clip_box.right <= orig_x) {
max_col--;
}
min_row = (clip_box.top - orig_y) / height;
if (clip_box.top < orig_y) {
min_row--;
}
max_row = (clip_box.bottom - orig_y) / height;
if (clip_box.bottom <= orig_y) {
max_row--;
}
}
FX_FLOAT left_offset = cell_bbox.left - mtPattern2Device.e;
FX_FLOAT top_offset = cell_bbox.bottom - mtPattern2Device.f;
CFX_DIBitmap* pPatternBitmap = NULL;
if (width * height < 16) {
CFX_DIBitmap* pEnlargedBitmap =
DrawPatternBitmap(m_pContext->m_pDocument, m_pContext->m_pPageCache,
pPattern, pObj2Device, 8, 8, m_Options.m_Flags);
pPatternBitmap = pEnlargedBitmap->StretchTo(width, height);
delete pEnlargedBitmap;
} else {
pPatternBitmap = DrawPatternBitmap(
m_pContext->m_pDocument, m_pContext->m_pPageCache, pPattern,
pObj2Device, width, height, m_Options.m_Flags);
}
if (!pPatternBitmap) {
m_pDevice->RestoreState();
return;
}
if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
pPatternBitmap->ConvertColorScale(m_Options.m_ForeColor,
m_Options.m_BackColor);
}
FX_ARGB fill_argb = GetFillArgb(pPageObj);
int clip_width = clip_box.right - clip_box.left;
int clip_height = clip_box.bottom - clip_box.top;
CFX_DIBitmap screen;
if (!screen.Create(clip_width, clip_height, FXDIB_Argb)) {
return;
}
screen.Clear(0);
FX_DWORD* src_buf = (FX_DWORD*)pPatternBitmap->GetBuffer();
for (int col = min_col; col <= max_col; col++) {
for (int row = min_row; row <= max_row; row++) {
int start_x, start_y;
if (bAligned) {
start_x = FXSYS_round(mtPattern2Device.e) + col * width - clip_box.left;
start_y = FXSYS_round(mtPattern2Device.f) + row * height - clip_box.top;
} else {
FX_FLOAT orig_x = col * pPattern->m_XStep;
FX_FLOAT orig_y = row * pPattern->m_YStep;
mtPattern2Device.Transform(orig_x, orig_y);
start_x = FXSYS_round(orig_x + left_offset) - clip_box.left;
start_y = FXSYS_round(orig_y + top_offset) - clip_box.top;
}
if (width == 1 && height == 1) {
if (start_x < 0 || start_x >= clip_box.Width() || start_y < 0 ||
start_y >= clip_box.Height()) {
continue;
}
FX_DWORD* dest_buf =
(FX_DWORD*)(screen.GetBuffer() + screen.GetPitch() * start_y +
start_x * 4);
if (pPattern->m_bColored) {
*dest_buf = *src_buf;
} else {
*dest_buf = (*(uint8_t*)src_buf << 24) | (fill_argb & 0xffffff);
}
} else {
if (pPattern->m_bColored) {
screen.CompositeBitmap(start_x, start_y, width, height,
pPatternBitmap, 0, 0);
} else {
screen.CompositeMask(start_x, start_y, width, height, pPatternBitmap,
fill_argb, 0, 0);
}
}
}
}
CompositeDIBitmap(&screen, clip_box.left, clip_box.top, 0, 255,
FXDIB_BLEND_NORMAL, FALSE);
m_pDevice->RestoreState();
delete pPatternBitmap;
}示例2: DrawShading
void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
CFX_Matrix* pMatrix,
FX_RECT& clip_rect,
int alpha,
FX_BOOL bAlphaMode) {
CPDF_Function** pFuncs = pPattern->m_pFunctions;
int nFuncs = pPattern->m_nFuncs;
CPDF_Dictionary* pDict = pPattern->m_pShadingObj->GetDict();
CPDF_ColorSpace* pColorSpace = pPattern->m_pCS;
if (!pColorSpace) {
return;
}
FX_ARGB background = 0;
if (!pPattern->m_bShadingObj &&
pPattern->m_pShadingObj->GetDict()->KeyExist("Background")) {
CPDF_Array* pBackColor =
pPattern->m_pShadingObj->GetDict()->GetArray("Background");
if (pBackColor &&
pBackColor->GetCount() >= (FX_DWORD)pColorSpace->CountComponents()) {
CFX_FixedBufGrow<FX_FLOAT, 16> comps(pColorSpace->CountComponents());
for (int i = 0; i < pColorSpace->CountComponents(); i++) {
comps[i] = pBackColor->GetNumber(i);
}
FX_FLOAT R = 0.0f, G = 0.0f, B = 0.0f;
pColorSpace->GetRGB(comps, R, G, B);
background = ArgbEncode(255, (int32_t)(R * 255), (int32_t)(G * 255),
(int32_t)(B * 255));
}
}
if (pDict->KeyExist("BBox")) {
CFX_FloatRect rect = pDict->GetRect("BBox");
rect.Transform(pMatrix);
clip_rect.Intersect(rect.GetOutterRect());
}
CPDF_DeviceBuffer buffer;
buffer.Initialize(m_pContext, m_pDevice, &clip_rect, m_pCurObj, 150);
CFX_Matrix FinalMatrix = *pMatrix;
FinalMatrix.Concat(*buffer.GetMatrix());
CFX_DIBitmap* pBitmap = buffer.GetBitmap();
if (!pBitmap->GetBuffer()) {
return;
}
pBitmap->Clear(background);
int fill_mode = m_Options.m_Flags;
switch (pPattern->m_ShadingType) {
case kInvalidShading:
case kMaxShading:
return;
case kFunctionBasedShading:
DrawFuncShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs, pColorSpace,
alpha);
break;
case kAxialShading:
DrawAxialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
pColorSpace, alpha);
break;
case kRadialShading:
DrawRadialShading(pBitmap, &FinalMatrix, pDict, pFuncs, nFuncs,
pColorSpace, alpha);
break;
case kFreeFormGouraudTriangleMeshShading: {
DrawFreeGouraudShading(pBitmap, &FinalMatrix,
ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
pColorSpace, alpha);
} break;
case kLatticeFormGouraudTriangleMeshShading: {
DrawLatticeGouraudShading(pBitmap, &FinalMatrix,
ToStream(pPattern->m_pShadingObj), pFuncs,
nFuncs, pColorSpace, alpha);
} break;
case kCoonsPatchMeshShading:
case kTensorProductPatchMeshShading: {
DrawCoonPatchMeshes(
pPattern->m_ShadingType == kTensorProductPatchMeshShading, pBitmap,
&FinalMatrix, ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
pColorSpace, fill_mode, alpha);
} break;
}
if (bAlphaMode) {
pBitmap->LoadChannel(FXDIB_Red, pBitmap, FXDIB_Alpha);
}
if (m_Options.m_ColorMode == RENDER_COLOR_GRAY) {
pBitmap->ConvertColorScale(m_Options.m_ForeColor, m_Options.m_BackColor);
}
buffer.OutputToDevice();
}