// This method takes an attributed string and outputs a GlyphLayout data
// structure that contains the glyph number and location of each inidividual glyph
void getGlyphLayout (const AttributedString& text, GlyphLayout& glyphLayout)
{
// For now we are creating the DirectWrite Factory, System Font Collection,
// D2D Factory and GDI Render target every time we layout text.
// This is inefficient and we may be loading and unloading libraries each layout.
// These four things should be created once at application startup and be destroyed
// when the application exits. I'm not sure where the best place to do this so
// for now I will just use the inefficient method.
IDWriteFactory* dwFactory = nullptr;
HRESULT hr = DWriteCreateFactory (DWRITE_FACTORY_TYPE_SHARED, __uuidof(IDWriteFactory),
reinterpret_cast<IUnknown**>(&dwFactory));
IDWriteFontCollection* dwFontCollection = nullptr;
hr = dwFactory->GetSystemFontCollection (&dwFontCollection);
// To add color to text, we need to create a D2D render target
// Since we are not actually rendering to a D2D context we create a temporary GDI render target
ID2D1Factory *d2dFactory = nullptr;
hr = D2D1CreateFactory (D2D1_FACTORY_TYPE_SINGLE_THREADED, &d2dFactory);
D2D1_RENDER_TARGET_PROPERTIES d2dRTProp = D2D1::RenderTargetProperties(
D2D1_RENDER_TARGET_TYPE_SOFTWARE,
D2D1::PixelFormat(
DXGI_FORMAT_B8G8R8A8_UNORM,
D2D1_ALPHA_MODE_IGNORE),
0,
0,
D2D1_RENDER_TARGET_USAGE_GDI_COMPATIBLE,
D2D1_FEATURE_LEVEL_DEFAULT
);
ID2D1DCRenderTarget* d2dDCRT = nullptr;
hr = d2dFactory->CreateDCRenderTarget (&d2dRTProp, &d2dDCRT);
// Initially we set the paragraph up with a default font and then apply the attributed string ranges later
Font defaultFont;
const float defaultFontHeightToEmSizeFactor = getFontHeightToEmSizeFactor (defaultFont, *dwFontCollection);
// We should probably be detecting the locale instead of hard coding it to en-us
String localeName("en-us");
// We multiply the font height by the size factor so we layout text at the correct size
IDWriteTextFormat* dwTextFormat = nullptr;
hr = dwFactory->CreateTextFormat (
defaultFont.getTypefaceName().toWideCharPointer(),
dwFontCollection,
DWRITE_FONT_WEIGHT_REGULAR,
DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL,
defaultFont.getHeight() * defaultFontHeightToEmSizeFactor,
localeName.toWideCharPointer(),
&dwTextFormat
);
// Paragraph Attributes
// Set Paragraph Alignment
if (text.getTextAlignment() == AttributedString::left)
dwTextFormat->SetTextAlignment (DWRITE_TEXT_ALIGNMENT_LEADING);
if (text.getTextAlignment() == AttributedString::right)
dwTextFormat->SetTextAlignment (DWRITE_TEXT_ALIGNMENT_TRAILING);
if (text.getTextAlignment() == AttributedString::center)
dwTextFormat->SetTextAlignment (DWRITE_TEXT_ALIGNMENT_CENTER);
// DirectWrite cannot justify text, default to left alignment
if (text.getTextAlignment() == AttributedString::justified)
dwTextFormat->SetTextAlignment (DWRITE_TEXT_ALIGNMENT_LEADING);
// Set Word Wrap
if (text.getWordWrap() == AttributedString::none)
dwTextFormat->SetWordWrapping (DWRITE_WORD_WRAPPING_NO_WRAP);
if (text.getWordWrap() == AttributedString::byWord)
dwTextFormat->SetWordWrapping (DWRITE_WORD_WRAPPING_WRAP);
// DirectWrite does not support wrapping by character, default to wrapping by word
if (text.getWordWrap() == AttributedString::byChar)
dwTextFormat->SetWordWrapping (DWRITE_WORD_WRAPPING_WRAP);
// DirectWrite does not automatically set reading direction
// This must be set correctly and manually when using RTL Scripts (Hebrew, Arabic)
if (text.getReadingDirection() == AttributedString::rightToLeft)
dwTextFormat->SetReadingDirection (DWRITE_READING_DIRECTION_RIGHT_TO_LEFT);
IDWriteTextLayout* dwTextLayout = nullptr;
hr = dwFactory->CreateTextLayout (
text.getText().toWideCharPointer(),
text.getText().length(),
dwTextFormat,
glyphLayout.getWidth(),
glyphLayout.getHeight(),
&dwTextLayout
);
// Character Attributes
int numCharacterAttributes = text.getCharAttributesSize();
for (int i = 0; i < numCharacterAttributes; ++i)
{
Attr* attr = text.getCharAttribute (i);
// Character Range Error Checking
if (attr->range.getStart() > text.getText().length()) continue;
if (attr->range.getEnd() > text.getText().length()) attr->range.setEnd (text.getText().length());
if (attr->attribute == Attr::font)
{
AttrFont* attrFont = static_cast<AttrFont*>(attr);
DWRITE_TEXT_RANGE dwRange;
dwRange.startPosition = attrFont->range.getStart();
dwRange.length = attrFont->range.getLength();
dwTextLayout->SetFontFamilyName (attrFont->font.getTypefaceName().toWideCharPointer(), dwRange);
// We multiply the font height by the size factor so we layout text at the correct size
const float fontHeightToEmSizeFactor = getFontHeightToEmSizeFactor (attrFont->font, *dwFontCollection);
dwTextLayout->SetFontSize (attrFont->font.getHeight() * fontHeightToEmSizeFactor, dwRange);
}
if (attr->attribute == Attr::foregroundColour)
{
AttrColour* attrColour = static_cast<AttrColour*>(attr);
DWRITE_TEXT_RANGE dwRange;
dwRange.startPosition = attrColour->range.getStart();
dwRange.length = attrColour->range.getLength();
ID2D1SolidColorBrush* d2dBrush = nullptr;
d2dDCRT->CreateSolidColorBrush (D2D1::ColorF (D2D1::ColorF(attrColour->colour.getFloatRed(),
attrColour->colour.getFloatGreen(), attrColour->colour.getFloatBlue(),
attrColour->colour.getFloatAlpha())), &d2dBrush);
// We need to call SetDrawingEffect with a legimate brush to get DirectWrite to break text based on colours
dwTextLayout->SetDrawingEffect (d2dBrush, dwRange);
safeRelease (&d2dBrush);
}
}
UINT32 actualLineCount = 0;
hr = dwTextLayout->GetLineMetrics (nullptr, 0, &actualLineCount);
// Preallocate GlyphLayout Line Array
glyphLayout.setNumLines (actualLineCount);
HeapBlock <DWRITE_LINE_METRICS> dwLineMetrics (actualLineCount);
hr = dwTextLayout->GetLineMetrics (dwLineMetrics, actualLineCount, &actualLineCount);
int location = 0;
// Create GlyphLine structures for each line in the layout
for (UINT32 i = 0; i < actualLineCount; ++i)
{
// Get string range
Range<int> lineStringRange (location, (int) location + dwLineMetrics[i].length);
location = dwLineMetrics[i].length;
GlyphLine* glyphLine = new GlyphLine();
glyphLine->setStringRange (lineStringRange);
glyphLayout.addGlyphLine (glyphLine);
}
// To copy glyph data from DirectWrite into our own data structures we must create our
// own CustomTextRenderer. Instead of passing the draw method an actual graphics context,
// we pass it the GlyphLayout object that needs to be filled with glyphs.
CustomDirectWriteTextRenderer* textRenderer = nullptr;
textRenderer = new CustomDirectWriteTextRenderer();
hr = dwTextLayout->Draw (
&glyphLayout,
textRenderer,
glyphLayout.getX(),
glyphLayout.getY()
);
safeRelease (&textRenderer);
safeRelease (&dwTextLayout);
safeRelease (&dwTextFormat);
safeRelease (&d2dDCRT);
safeRelease (&d2dFactory);
safeRelease (&dwFontCollection);
safeRelease (&dwFactory);
}
// Measure text
FW1_RECTF STDMETHODCALLTYPE CFW1FontWrapper::MeasureString(
const WCHAR *pszString,
const WCHAR *pszFontFamily,
FLOAT FontSize,
const FW1_RECTF *pLayoutRect,
UINT Flags
) {
FW1_RECTF stringRect = {pLayoutRect->Left, pLayoutRect->Top, pLayoutRect->Left, pLayoutRect->Top};
IDWriteTextLayout *pTextLayout = createTextLayout(pszString, pszFontFamily, FontSize, pLayoutRect, Flags);
if(pTextLayout != NULL) {
// Get measurements
/*DWRITE_OVERHANG_METRICS overhangMetrics;
HRESULT hResult = pTextLayout->GetOverhangMetrics(&overhangMetrics);
if(SUCCEEDED(hResult)) {
stringRect.Left = floor(pLayoutRect->Left - overhangMetrics.left);
stringRect.Top = floor(pLayoutRect->Top - overhangMetrics.top);
stringRect.Right = ceil(pLayoutRect->Left + overhangMetrics.right);
stringRect.Bottom = ceil(pLayoutRect->Top + overhangMetrics.bottom);
}*/
DWRITE_TEXT_METRICS textMetrics;
HRESULT hResult = pTextLayout->GetMetrics(&textMetrics);
if(SUCCEEDED(hResult)) {
stringRect.Left = textMetrics.left;
stringRect.Top = textMetrics.top;
stringRect.Right = textMetrics.left + textMetrics.widthIncludingTrailingWhitespace;
stringRect.Bottom = textMetrics.top + textMetrics.height;
}
pTextLayout->Release();
}
return stringRect;
}
// Draw text
void STDMETHODCALLTYPE CFW1FontWrapper::DrawString(
ID3D11DeviceContext *pContext,
const WCHAR *pszString,
const WCHAR *pszFontFamily,
FLOAT FontSize,
const FW1_RECTF *pLayoutRect,
UINT32 Color,
const FW1_RECTF *pClipRect,
const FLOAT *pTransformMatrix,
UINT Flags
) {
IDWriteTextLayout *pTextLayout = createTextLayout(pszString, pszFontFamily, FontSize, pLayoutRect, Flags);
if(pTextLayout != NULL) {
// Draw
DrawTextLayout(
pContext,
pTextLayout,
pLayoutRect->Left,
pLayoutRect->Top,
Color,
pClipRect,
pTransformMatrix,
Flags
);
pTextLayout->Release();
}
}
bool CanvasD2D::MeasureTextLinesW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect, UINT& lines)
{
((TextFormatD2D&)format).m_TextFormat->SetWordWrapping(DWRITE_WORD_WRAPPING_WRAP);
IDWriteTextLayout* textLayout;
HRESULT hr = c_DWFactory->CreateTextLayout(
str,
strLen,
((TextFormatD2D&)format).m_TextFormat,
rect.Width,
10000,
&textLayout);
if (SUCCEEDED(hr))
{
DWRITE_TEXT_METRICS metrics;
textLayout->GetMetrics(&metrics);
rect.Width = metrics.width + 5.0f;
rect.Height = metrics.height + 1.0f; // 1.0f to get same result as GDI+.
lines = metrics.lineCount;
textLayout->Release();
return true;
}
return false;
}
touchmind::VISITOR_RESULT operator()(std::shared_ptr<touchmind::model::node::NodeModel> node) {
HRESULT hr = S_OK;
m_pXPSPrint->_PrintNode(node);
if (FAILED(hr)) {
LOG(SEVERITY_LEVEL_WARN) << L"_PrintNodeBody failed at node(" << node->GetId() << L", hr = " << hr;
return touchmind::VISITOR_RESULT_STOP;
}
XpsDWriteTextRenderer* pTextRenderer = m_pXPSPrint->GetTextRenderer();
touchmind::view::node::NodeViewManager *pNodeViewManager = m_pXPSPrint->GetNodeViewManager();
control::DWriteEditControlManager *pEditControlManager = m_pXPSPrint->GetEditControlManager();
control::EDIT_CONTROL_INDEX editControlIndex = pNodeViewManager->GetEditControlIndexFromNodeId(node->GetId());
std::shared_ptr<control::DWriteEditControl> pEditControl = pEditControlManager->GetEditControl(editControlIndex);
if (pEditControl != nullptr) {
IDWriteTextLayout* pTextLayout = pEditControl->GetTextLayout();
if (pTextLayout != nullptr) {
pTextLayout->Draw(nullptr,
pTextRenderer,
node->GetX() + m_pXPSPrint->GetConfiguration()->GetInsets().left,
node->GetY() + m_pXPSPrint->GetConfiguration()->GetInsets().top);
} else {
LOG(SEVERITY_LEVEL_WARN) << L"TextLayout is null";
}
} else {
LOG(SEVERITY_LEVEL_WARN) << L"Could not found EditControl for Node(" << node->GetId() << L")";
}
return touchmind::VISITOR_RESULT_CONTINUE;
}
// Create geometry from a string
void STDMETHODCALLTYPE CFW1FontWrapper::AnalyzeString(
ID3D11DeviceContext *pContext,
const WCHAR *pszString,
const WCHAR *pszFontFamily,
FLOAT FontSize,
const FW1_RECTF *pLayoutRect,
UINT32 Color,
UINT Flags,
IFW1TextGeometry *pTextGeometry
) {
IDWriteTextLayout *pTextLayout = createTextLayout(pszString, pszFontFamily, FontSize, pLayoutRect, Flags);
if(pTextLayout != NULL) {
AnalyzeTextLayout(
pContext,
pTextLayout,
pLayoutRect->Left,
pLayoutRect->Top,
Color,
Flags,
pTextGeometry
);
pTextLayout->Release();
}
}
IDWriteTextLayout* createTextLayout(IDWriteFactory1* writeFactory, IDWriteTextFormat* textFormat, const Int2& layoutSize, float scale, const wchar_t* wtext)
{
IDWriteTextLayout* textLayout;
// Create a DirectWrite Text Layout object.
DX::ThrowIfFailed(
writeFactory->CreateTextLayout(
wtext, // Text to be displayed
(UINT32)wcslen(wtext), // Length of the text
textFormat, // DirectWrite Text Format object
layoutSize.width() / scale, // Width of the Text Layout
layoutSize.height() / scale, // Height of the Text Layout
&textLayout
)
);
// Create a text range corresponding to the entire string.
DWRITE_TEXT_RANGE textRange = { 0 };
textRange.length = static_cast<UINT32>(wcslen(wtext));
textRange.startPosition = 0;
// Set the font size and weight on the text range.
textLayout->SetFontSize(100.f, textRange);
textLayout->SetFontWeight(DWRITE_FONT_WEIGHT_BOLD, textRange);
//m_textLayout->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
return textLayout;
}
void
DWriteContext::DrawText(HDC hdc, const WCHAR* text, int len,
int x, int y, int w, int h, int cellWidth, COLORREF color)
{
HRESULT hr = S_OK;
IDWriteBitmapRenderTarget *bmpRT = NULL;
// Skip when any fonts are not set.
if (mTextFormat == NULL)
return;
// Check possibility of zero divided error.
if (cellWidth == 0 || mDpiScaleX == 0.0f || mDpiScaleY == 0.0f)
return;
if (SUCCEEDED(hr))
hr = mGdiInterop->CreateBitmapRenderTarget(hdc, w, h, &bmpRT);
if (SUCCEEDED(hr))
{
IDWriteTextLayout *textLayout = NULL;
HDC memdc = bmpRT->GetMemoryDC();
BitBlt(memdc, 0, 0, w, h, hdc, x, y, SRCCOPY);
hr = mDWriteFactory->CreateGdiCompatibleTextLayout(
text, len, mTextFormat, PixelsToDipsX(w),
PixelsToDipsY(h), mDpiScaleX, NULL, TRUE, &textLayout);
if (SUCCEEDED(hr))
{
DWRITE_TEXT_RANGE textRange = { 0, (UINT32)len };
textLayout->SetFontWeight(mFontWeight, textRange);
textLayout->SetFontStyle(mFontStyle, textRange);
}
if (SUCCEEDED(hr))
{
GdiTextRenderer *renderer = new GdiTextRenderer(bmpRT,
mRenderingParams);
GdiTextRendererContext data = {
color,
PixelsToDipsX(cellWidth),
0.0f
};
textLayout->Draw(&data, renderer, 0, 0);
SafeRelease(&renderer);
}
BitBlt(hdc, x, y, w, h, memdc, 0, 0, SRCCOPY);
SafeRelease(&textLayout);
}
SafeRelease(&bmpRT);
}
void ClixRenderer::DText(std::wstring text, float x, float y, float w, float h, float size, CColor color)
{
IDWriteTextLayout* textLayout;
D2Brush->SetColor(CColor::ColorF(color));
pDWriteFactory->CreateTextLayout(text.c_str(), text.length(), pTextFormat, w, h, &textLayout);
DWRITE_TEXT_RANGE range = { 0, text.length() };
textLayout->SetFontSize(size, range);
D2Render->DrawTextLayout(D2D1::Point2F(x, y), textLayout, D2Brush);
textLayout->Release();
}
int CDirectWriteRenderer::GetFitCharCount(LPCWSTR pText, int Length, int Width, CDirectWriteFont &Font)
{
if (pText == nullptr || Length == 0)
return 0;
if (m_pRenderTarget == nullptr)
return 0;
int FitCharCount = 0;
IDWriteFactory *pFactory = m_System.GetDWriteFactory();
if (pFactory != nullptr) {
IDWriteTextFormat *pTextFormat = Font.GetTextFormat();
if (pTextFormat != nullptr) {
IDWriteTextLayout *pTextLayout;
pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
pTextFormat->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
if (Length < 0)
Length = ::lstrlenW(pText);
HRESULT hr = pFactory->CreateTextLayout(
pText,
Length,
pTextFormat,
static_cast<float>(Width),
m_pRenderTarget->GetSize().height,
&pTextLayout);
if (SUCCEEDED(hr)) {
Util::CTempBuffer<DWRITE_CLUSTER_METRICS, 256> ClusterMetrics(Length);
UINT32 ClusterCount;
hr = pTextLayout->GetClusterMetrics(ClusterMetrics.GetBuffer(), Length, &ClusterCount);
if (SUCCEEDED(hr)) {
float Pos = 0.0f;
for (UINT32 i = 0; i < ClusterCount; i++) {
Pos += ClusterMetrics[i].width;
if (static_cast<int>(std::ceil(Pos)) > Width)
break;
FitCharCount += ClusterMetrics[i].length;
}
}
pTextLayout->Release();
}
pTextFormat->Release();
}
pFactory->Release();
}
return FitCharCount;
}
bool CDirectWriteRenderer::GetTextMetrics(
LPCWSTR pText, int Length, CDirectWriteFont &Font, TextMetrics *pMetrics)
{
if (pText == nullptr || pMetrics == nullptr)
return false;
if (m_pRenderTarget == nullptr)
return false;
HRESULT hr = E_UNEXPECTED;
IDWriteFactory *pFactory = m_System.GetDWriteFactory();
if (pFactory != nullptr) {
IDWriteTextFormat *pTextFormat = Font.GetTextFormat();
if (pTextFormat != nullptr) {
D2D1_SIZE_F Size;
IDWriteTextLayout *pTextLayout;
pTextFormat->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
pTextFormat->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
if (Length < 0)
Length = ::lstrlenW(pText);
Size = m_pRenderTarget->GetSize();
hr = pFactory->CreateTextLayout(
pText,
Length,
pTextFormat,
Size.width,
Size.height,
&pTextLayout);
if (SUCCEEDED(hr)) {
DWRITE_TEXT_METRICS Metrics;
hr = pTextLayout->GetMetrics(&Metrics);
if (SUCCEEDED(hr)) {
pMetrics->Width = Metrics.width;
pMetrics->WidthIncludingTrailingWhitespace = Metrics.widthIncludingTrailingWhitespace;
pMetrics->Height = Metrics.height;
}
pTextLayout->Release();
}
pTextFormat->Release();
}
pFactory->Release();
}
return SUCCEEDED(hr);
}
void MWinDeviceImpl::SetTabStops(
uint32 inTabWidth)
{
if (mTextLayout == nil)
THROW(("SetText must be called first!"));
mTextLayout->SetIncrementalTabStop(inTabWidth * 96.f / 72.f);
}
void DrawNormal(const Chat &chat, int vpos) {
int x = static_cast<int>(rcWnd_.right - (float)(chat.width + rcWnd_.right) * (vpos - chat.vpos) / VPOS_LEN);
int y = static_cast<int>(((float)yPitch_ * CNJIni::GetSettings()->commentLineMargin) * (float)chat.line);
IDWriteTextLayout *pLayout;
pDWriteFactory_->CreateTextLayout(chat.text.c_str(), chat.text.length(), pTextFormat_, 1920, 1200, &pLayout);
D2D1_POINT_2F pt = {static_cast<FLOAT>(x) / dpiScaleX_, static_cast<FLOAT>(y) / dpiScaleY_};
ID2D1SolidColorBrush *pColor;
pRT_->CreateSolidColorBrush(
D2D1::ColorF(bgr2rgb(chat.color)),
&pColor
);
renderer_->SetColorBrush(pColor);
pLayout->Draw(NULL, pTextRenderer_, pt.x, pt.y);
pColor->Release();
pLayout->Release();
}
// Create text layout from string
IDWriteTextLayout* CFW1FontWrapper::createTextLayout(
const WCHAR *pszString,
const WCHAR *pszFontFamily,
FLOAT fontSize,
const FW1_RECTF *pLayoutRect,
UINT flags
) {
if(m_defaultTextInited) {
UINT32 stringLength = 0;
while(pszString[stringLength] != 0)
++stringLength;
// Create DWrite text layout for the string
IDWriteTextLayout *pTextLayout;
HRESULT hResult = m_pDWriteFactory->CreateTextLayout(
pszString,
stringLength,
m_pDefaultTextFormat,
pLayoutRect->Right - pLayoutRect->Left,
pLayoutRect->Bottom - pLayoutRect->Top,
&pTextLayout
);
if(SUCCEEDED(hResult)) {
// Layout settings
DWRITE_TEXT_RANGE allText = {0, stringLength};
pTextLayout->SetFontSize(fontSize, allText);
if(pszFontFamily != NULL)
pTextLayout->SetFontFamilyName(pszFontFamily, allText);
if((flags & FW1_NOWORDWRAP) != 0)
pTextLayout->SetWordWrapping(DWRITE_WORD_WRAPPING_NO_WRAP);
if(flags & FW1_RIGHT)
pTextLayout->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_TRAILING);
else if(flags & FW1_CENTER)
pTextLayout->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
if(flags & FW1_BOTTOM)
pTextLayout->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_FAR);
else if(flags & FW1_VCENTER)
pTextLayout->SetParagraphAlignment(DWRITE_PARAGRAPH_ALIGNMENT_CENTER);
return pTextLayout;
}
}
return NULL;
}
bool CanvasD2D::MeasureTextW(const WCHAR* str, UINT strLen, const TextFormat& format, Gdiplus::RectF& rect)
{
IDWriteTextLayout* textLayout;
HRESULT hr = c_DWFactory->CreateTextLayout(
str,
strLen,
((TextFormatD2D&)format).m_TextFormat,
10000,
10000,
&textLayout);
if (SUCCEEDED(hr))
{
DWRITE_TEXT_METRICS metrics;
textLayout->GetMetrics(&metrics);
rect.Width = metrics.width + 5.0f;
rect.Height = metrics.height + 1.0f; // 1.0f to get same result as GDI+.
textLayout->Release();
return true;
}
return false;
}
Glyph* D3DGlyphProvider::getGlyph(UChar ch, float emsize)
{
HRESULT hr = S_OK;
IDWriteTextLayout* ptextlayout = NULL;
ASSERT_PTR(mpTextFormat);
hr = mpDWriteFactory->CreateTextLayout(&ch, 1, mpTextFormat, 512, 512, &ptextlayout);
if ( SUCCEEDED(hr) )
{
DWRITE_TEXT_RANGE range = { 0, 0 };
ptextlayout->SetFontSize(emsize, range);
AutoPtr<Glyph> glyph = new Glyph();
hr = ptextlayout->Draw(glyph.getPointer(), mpTextRenderer, 0, 0);
if ( SUCCEEDED(hr) )
{
return glyph.release();
}
}
return NULL;
}
void DrawShita(const Chat &chat) {
RECT rc;
rc.top = rcWnd_.bottom - yPitch_ - static_cast<LONG>(chat.line * (int)((float)yPitch_ * CNJIni::GetSettings()->commentLineMargin));
rc.bottom = rc.top + yPitch_;
rc.left = 0;
rc.right = rcWnd_.right;
D2D1_RECT_F layoutRect = D2D1::RectF(
static_cast<FLOAT>(rc.left) / dpiScaleX_,
static_cast<FLOAT>(rc.top) / dpiScaleY_,
static_cast<FLOAT>(rc.right) / dpiScaleX_,
static_cast<FLOAT>(rc.bottom) / dpiScaleY_
);
pTextFormat_->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_CENTER);
IDWriteTextLayout *pLayout;
pDWriteFactory_->CreateTextLayout(
chat.text.c_str(),
chat.text.length(),
pTextFormat_,
static_cast<FLOAT>(rc.right) / dpiScaleX_,
static_cast<FLOAT>(yPitch_) / dpiScaleY_,
&pLayout
);
D2D1_POINT_2F pt = {static_cast<FLOAT>(rc.left) / dpiScaleX_, static_cast<FLOAT>(rc.top) / dpiScaleY_};
ID2D1SolidColorBrush *pColor;
pRT_->CreateSolidColorBrush(
D2D1::ColorF(bgr2rgb(chat.color)),
&pColor
);
renderer_->SetColorBrush(pColor);
pLayout->Draw(NULL, pTextRenderer_, pt.x, pt.y);
pColor->Release();
pLayout->Release();
pTextFormat_->SetTextAlignment(DWRITE_TEXT_ALIGNMENT_LEADING);
}
void addAttributedRange (const AttributedString::Attribute& attr, IDWriteTextLayout& textLayout,
const int textLen, ID2D1RenderTarget& renderTarget, IDWriteFontCollection& fontCollection)
{
DWRITE_TEXT_RANGE range;
range.startPosition = attr.range.getStart();
range.length = jmin (attr.range.getLength(), textLen - attr.range.getStart());
if (const Font* const font = attr.getFont())
{
const String familyName (FontStyleHelpers::getConcreteFamilyName (*font));
BOOL fontFound = false;
uint32 fontIndex;
fontCollection.FindFamilyName (familyName.toWideCharPointer(), &fontIndex, &fontFound);
if (! fontFound)
fontIndex = 0;
ComSmartPtr<IDWriteFontFamily> fontFamily;
HRESULT hr = fontCollection.GetFontFamily (fontIndex, fontFamily.resetAndGetPointerAddress());
ComSmartPtr<IDWriteFont> dwFont;
uint32 fontFacesCount = 0;
fontFacesCount = fontFamily->GetFontCount();
for (int i = fontFacesCount; --i >= 0;)
{
hr = fontFamily->GetFont (i, dwFont.resetAndGetPointerAddress());
if (font->getTypefaceStyle() == getFontFaceName (dwFont))
break;
}
textLayout.SetFontFamilyName (familyName.toWideCharPointer(), range);
textLayout.SetFontWeight (dwFont->GetWeight(), range);
textLayout.SetFontStretch (dwFont->GetStretch(), range);
textLayout.SetFontStyle (dwFont->GetStyle(), range);
const float fontHeightToEmSizeFactor = getFontHeightToEmSizeFactor (*dwFont);
textLayout.SetFontSize (font->getHeight() * fontHeightToEmSizeFactor, range);
}
if (const Colour* const colour = attr.getColour())
{
ComSmartPtr<ID2D1SolidColorBrush> d2dBrush;
renderTarget.CreateSolidColorBrush (D2D1::ColorF (colour->getFloatRed(),
colour->getFloatGreen(),
colour->getFloatBlue(),
colour->getFloatAlpha()),
d2dBrush.resetAndGetPointerAddress());
// We need to call SetDrawingEffect with a legimate brush to get DirectWrite to break text based on colours
textLayout.SetDrawingEffect (d2dBrush, range);
}
}
void MWinDeviceImpl::SetText(
const string& inText)
{
if (mTextLayout != nil)
mTextLayout->Release();
wstring s(c2w(inText));
THROW_IF_HRESULT_ERROR(
sDWFactory->CreateTextLayout(
s.c_str(),
s.length(),
GetTextFormat(),
99999.0f,
99999.0f,
&mTextLayout
));
}
HRESULT Layout::Draw(float pageWidthInDips, ID2D1RenderTarget* renderTarget, ID2D1Brush* textBrush)
{
HRESULT hr = S_OK;
static UINT const fontResourceIDs[] = { IDR_FONT_PERICLES, IDR_FONT_KOOTENAY };
// Create a custom font collection comprising our two font resources. We could have done this
// in the constructor rather than every time. However, if you set break points on the loader
// callbacks you'll find they're only called the first time the font collection is created.
// Thereafter the font collection data is cached so recreating it is quite fast.
hr = fontContext_.Initialize();
if (FAILED(hr))
return hr;
IDWriteFontCollection* fontCollection = NULL;
hr = fontContext_.CreateFontCollection(
fontResourceIDs,
sizeof(fontResourceIDs),
&fontCollection
);
if (FAILED(hr))
return hr;
// Set up for first paragraph.
float const columnWidth = std::max<float>(minColumnWidth_, pageWidthInDips - leftMargin_ - rightMargin_);
float y = 0;
float spaceBefore = 0;
IDWriteTextFormat* textFormat = NULL;
size_t const formatCount = sizeof(formats_) / sizeof(formats_[0]);
size_t const paragraphCount = sizeof(paragraphs_) / sizeof(paragraphs_[0]);
// Iterate over all the paragraphs.
for (size_t i = 0; i < paragraphCount; ++i)
{
// We create a different text format object for the first formatCount
// paragraphs. After that we reuse the last text format object.
if (i < formatCount)
{
// Create the text format object, specifying both the family name and the
// custom font collection in which to look for the family name. DirectWrite
// will only look for the family name in the specified collection so there
// is no ambiguity even if the system font collection happens to have a font
// with the same family name.
SafeRelease(&textFormat);
hr = g_dwriteFactory->CreateTextFormat(
formats_[i].familyName,
fontCollection,
DWRITE_FONT_WEIGHT_NORMAL,
DWRITE_FONT_STYLE_NORMAL,
DWRITE_FONT_STRETCH_NORMAL,
formats_[i].pointSize * (96.0f / 72),
L"en-us",
&textFormat
);
spaceBefore = formats_[i].spaceBefore * (96.0f / 72);
}
IDWriteTextLayout* textLayout = NULL;
if (SUCCEEDED(hr))
{
// Load the string.
int const maxLength = 512;
wchar_t charBuffer[maxLength];
int stringLength = LoadString(g_instance, paragraphs_[i], charBuffer, maxLength);
// Create the text layout object.
hr = g_dwriteFactory->CreateTextLayout(
charBuffer,
stringLength,
textFormat,
columnWidth,
0,
&textLayout
);
}
if (SUCCEEDED(hr))
{
// Draw the text and update the y coordinate.
y += spaceBefore;
renderTarget->DrawTextLayout(
D2D1::Point2F(leftMargin_, y),
textLayout,
textBrush
);
DWRITE_TEXT_METRICS metrics;
hr = textLayout->GetMetrics(&metrics);
y += metrics.height;
}
SafeRelease(&textLayout);
if (FAILED(hr))
break;
}
SafeRelease(&textFormat);
SafeRelease(&fontCollection);
return hr;
}
int nf_print(void * bitmap, uint16_t w, uint16_t h,
nf_font_t font, nf_feature_t * features, size_t features_count,
nf_aabb_t * result_rect, const char * text, ...)
{
if(!bitmap)
{
NF_ERROR("can't print with invalid bitmap\n");
return -1;
}
if(!font)
{
NF_ERROR("can't print with invalid font\n");
return -1;
}
if(!text)
{
NF_ERROR("can't print with invalid text\n");
return -1;
}
// figure out text rendering settings
HRESULT hr = 0;
D2D1_COLOR_F bg_color = D2D1::ColorF(0.0f, 0.0f, 0.0f, 0.0f);
D2D1_COLOR_F fg_color = D2D1::ColorF(1.0f, 1.0f, 1.0f, 1.0f);
DWRITE_WORD_WRAPPING text_wrap = DWRITE_WORD_WRAPPING_WRAP;
DWRITE_TEXT_ALIGNMENT text_alignment = DWRITE_TEXT_ALIGNMENT_LEADING;
DWRITE_PARAGRAPH_ALIGNMENT parg_alignment = DWRITE_PARAGRAPH_ALIGNMENT_NEAR;
D2D1_TEXT_ANTIALIAS_MODE text_aa_mode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
float ppi_x = 0.0f, ppi_y = 0.0f;
ctx.d2d_factory->GetDesktopDpi(&ppi_x, &ppi_y);
size_t len = strlen(text) + 1;
WCHAR * wtext = (WCHAR*)alloca(len * sizeof(WCHAR));
size_t wlen = mbstowcs(wtext, text, len);
if(wlen == (size_t)-1)
{
NF_ERROR("failed to convert text to wchar, text : '%s'\n", text);
return -1;
}
IDWriteTextLayout * layout = NULL;
if(FAILED(hr = ctx.dw_factory->CreateTextLayout(
wtext, wlen,
(IDWriteTextFormat*)font,
w, h,
&layout)))
{
nf_explain_hr(hr, "can't create dwrite text layout");
return -1;
}
for(size_t i = 0; i < features_count; ++i)
{
DWRITE_TEXT_RANGE range;
range.startPosition = features[i].range.start;
range.length = features[i].range.end - features[i].range.start + 1;
switch(features[i].type)
{
case NF_FEATURE_BOLD:
layout->SetFontWeight(DWRITE_FONT_WEIGHT_BOLD, range);
break;
case NF_FEATURE_UNDERLINE:
layout->SetUnderline(true, range);
break;
case NF_FEATURE_ITALIC:
layout->SetFontStyle(DWRITE_FONT_STYLE_ITALIC, range);
break;
case NF_FEATURE_WRAP:
text_wrap = DWRITE_WORD_WRAPPING_WRAP;
break;
case NF_FEATURE_NO_WRAP:
text_wrap = DWRITE_WORD_WRAPPING_NO_WRAP;
break;
case NF_FEATURE_ALIGN_LEFT:
text_alignment = DWRITE_TEXT_ALIGNMENT_LEADING;
break;
case NF_FEATURE_ALIGN_CENTER:
text_alignment = DWRITE_TEXT_ALIGNMENT_CENTER;
break;
case NF_FEATURE_ALIGN_RIGHT:
text_alignment = DWRITE_TEXT_ALIGNMENT_TRAILING;
break;
case NF_FEATURE_ALIGN_JUSTIFIED:
text_alignment = DWRITE_TEXT_ALIGNMENT_JUSTIFIED;
break;
case NF_FEATURE_ALIGN_PARAGRAPH_LEFT:
parg_alignment = DWRITE_PARAGRAPH_ALIGNMENT_NEAR;
break;
case NF_FEATURE_ALIGN_PARAGRAPH_CENTER:
parg_alignment = DWRITE_PARAGRAPH_ALIGNMENT_CENTER;
break;
case NF_FEATURE_ALIGN_PARAGRAPH_RIGHT:
parg_alignment = DWRITE_PARAGRAPH_ALIGNMENT_FAR;
break;
case NF_FEATURE_AA_DISABLED:
text_aa_mode = D2D1_TEXT_ANTIALIAS_MODE_ALIASED;
break;
case NF_FEATURE_AA_WIN_CLEARTYPE:
text_aa_mode = D2D1_TEXT_ANTIALIAS_MODE_CLEARTYPE;
break;
case NF_FEATURE_AA_WIN_GREYSCALE:
text_aa_mode = D2D1_TEXT_ANTIALIAS_MODE_GRAYSCALE;
break;
case NF_FEATURE_PPI:
ppi_x = features[i].ppi.x;
ppi_y = features[i].ppi.y;
break;
case NF_FEATURE_COLOR_BG:
bg_color = D2D1::ColorF(
features[i].color.r,
features[i].color.g,
features[i].color.b,
features[i].color.a);
break;
case NF_FEATURE_COLOR_TEXT:
fg_color = D2D1::ColorF(
features[i].color.r,
features[i].color.g,
features[i].color.b,
features[i].color.a);
break;
default:
break;
}
}
layout->SetWordWrapping(text_wrap);
layout->SetTextAlignment(text_alignment);
layout->SetParagraphAlignment(parg_alignment);
ctx.d2d_rt->SetDpi(ppi_x, ppi_y);
ctx.d2d_rt->SetTextAntialiasMode(text_aa_mode);
ctx.d2d_brush->SetColor(fg_color);
// figure our result metrics
// TODO does this call actually rasterizes text?
DWRITE_TEXT_METRICS text_metrics;
layout->GetMetrics(&text_metrics);
float clip_x1 = text_metrics.left;
float clip_y1 = text_metrics.top;
float clip_x2 = text_metrics.left + text_metrics.width;
float clip_y2 = text_metrics.top + text_metrics.height;
clip_x1 = clip_x1 < 0 ? 0 : (clip_x1 >= w ? w - 1 : clip_x1);
clip_y1 = clip_y1 < 0 ? 0 : (clip_y1 >= h ? h - 1 : clip_y1);
clip_x2 = clip_x2 < 0 ? 0 : (clip_x2 >= w ? w - 1 : clip_x2);
clip_y2 = clip_y2 < 0 ? 0 : (clip_y2 >= h ? h - 1 : clip_y2);
float clip_w = clip_x2 - clip_x1 + 1.0f;
float clip_h = clip_y2 - clip_y1 + 1.0f;
nf_aabb_t aabb;
aabb.x = clip_x1;
aabb.y = clip_y1;
aabb.w = clip_w;
aabb.h = clip_h;
if(result_rect)
*result_rect = aabb;
// render text
ctx.d2d_rt->BeginDraw();
ctx.d2d_rt->Clear(bg_color);
ctx.d2d_rt->DrawTextLayout(D2D1::Point2F(), layout, ctx.d2d_brush);
ctx.d2d_rt->EndDraw();
layout->Release();
layout = NULL;
// read texture from d3d
ctx.d3d_device->CopyResource(ctx.d3d_texture2, ctx.d3d_texture1);
D3D10_MAPPED_TEXTURE2D mapped = {0};
if(FAILED(hr = ctx.d3d_texture2->Map(0, D3D10_MAP_READ, 0, &mapped)))
{
nf_explain_hr(hr, "can't map d3d texture");
return -1;
}
for(size_t j = aabb.y; j < aabb.y + aabb.h; ++j)
// hardcoded BGRA8 format
memcpy(
(uint8_t*)bitmap + (j * w + aabb.x) * 4,
(uint8_t*)mapped.pData + j * mapped.RowPitch + aabb.x,
aabb.w * 4);
ctx.d3d_texture2->Unmap(0);
return 0;
}
