DrawTextBlobCommand Class Reference

#include <DrawCommand.h>

Inheritance diagram for DrawTextBlobCommand:

Public Member Functions
	DrawTextBlobCommand (sk_sp< SkTextBlob > blob, SkScalar x, SkScalar y, const SkPaint &paint)
void	execute (SkCanvas *canvas) const override
bool	render (SkCanvas *canvas) const override
void	toJSON (SkJSONWriter &writer, UrlDataManager &urlDataManager) const override
Public Member Functions inherited from DrawCommand
	DrawCommand (OpType opType)
virtual	~DrawCommand ()
bool	isVisible () const
void	setVisible (bool toggle)
OpType	getOpType () const

Additional Inherited Members
Public Types inherited from DrawCommand
enum	OpType {   kBeginDrawPicture_OpType , kClear_OpType , kClipPath_OpType , kClipRegion_OpType ,   kClipRect_OpType , kClipRRect_OpType , kClipShader_OpType , kResetClip_OpType ,   kConcat_OpType , kConcat44_OpType , kDrawAnnotation_OpType , kDrawBitmap_OpType ,   kDrawBitmapRect_OpType , kDrawDRRect_OpType , kDrawImage_OpType , kDrawImageLattice_OpType ,   kDrawImageRect_OpType , kDrawImageRectLayer_OpType , kDrawOval_OpType , kDrawArc_OpType ,   kDrawPaint_OpType , kDrawPatch_OpType , kDrawPath_OpType , kDrawPoints_OpType ,   kDrawRect_OpType , kDrawRRect_OpType , kDrawRegion_OpType , kDrawShadow_OpType ,   kDrawTextBlob_OpType , kDrawVertices_OpType , kDrawAtlas_OpType , kDrawDrawable_OpType ,   kDrawEdgeAAQuad_OpType , kDrawEdgeAAImageSet_OpType , kEndDrawPicture_OpType , kRestore_OpType ,   kSave_OpType , kSaveLayer_OpType , kSetMatrix_OpType , kSetM44_OpType ,   kLast_OpType = kSetM44_OpType }
Static Public Member Functions inherited from DrawCommand
static void	WritePNG (const SkBitmap &bitmap, SkWStream &out)
static const char *	GetCommandString (OpType type)
static void	MakeJsonColor (SkJSONWriter &, const SkColor color)
static void	MakeJsonColor4f (SkJSONWriter &, const SkColor4f &color)
static void	MakeJsonPoint (SkJSONWriter &, const SkPoint &point)
static void	MakeJsonPoint (SkJSONWriter &, SkScalar x, SkScalar y)
static void	MakeJsonPoint3 (SkJSONWriter &, const SkPoint3 &point)
static void	MakeJsonRect (SkJSONWriter &, const SkRect &rect)
static void	MakeJsonIRect (SkJSONWriter &, const SkIRect &)
static void	MakeJsonMatrix (SkJSONWriter &, const SkMatrix &)
static void	MakeJsonMatrix44 (SkJSONWriter &, const SkM44 &)
static void	MakeJsonPath (SkJSONWriter &, const SkPath &path)
static void	MakeJsonRegion (SkJSONWriter &, const SkRegion &region)
static void	MakeJsonSampling (SkJSONWriter &, const SkSamplingOptions &sampling)
static void	MakeJsonPaint (SkJSONWriter &, const SkPaint &paint, UrlDataManager &urlDataManager)
static void	MakeJsonLattice (SkJSONWriter &, const SkCanvas::Lattice &lattice)
static void	flatten (const SkFlattenable *flattenable, SkJSONWriter &writer, UrlDataManager &urlDataManager)
static bool	flatten (const SkImage &image, SkJSONWriter &writer, UrlDataManager &urlDataManager)
static bool	flatten (const SkBitmap &bitmap, SkJSONWriter &writer, UrlDataManager &urlDataManager)
Static Public Attributes inherited from DrawCommand
static const int	kOpTypeCount = kLast_OpType + 1

Detailed Description

Definition at line 518 of file DrawCommand.h.

Constructor & Destructor Documentation

DrawTextBlobCommand()

DrawTextBlobCommand::DrawTextBlobCommand	(	sk_sp< SkTextBlob >	blob,
		SkScalar	x,
		SkScalar	y,
		const SkPaint &	paint
	)

Definition at line 1664 of file DrawCommand.cpp.

        : INHERITED(kDrawTextBlob_OpType)
        , fBlob(std::move(blob))
        , fXPos(x)
        , fYPos(y)
        , fPaint(paint) {}

Member Function Documentation

execute()

void DrawTextBlobCommand::execute ( SkCanvas *  canvas ) const

overridevirtual

Implements DrawCommand.

Definition at line 1674 of file DrawCommand.cpp.

                                                        {
    canvas->drawTextBlob(fBlob, fXPos, fYPos, fPaint);
}

render()

bool DrawTextBlobCommand::render ( SkCanvas *  canvas ) const

overridevirtual

Reimplemented from DrawCommand.

Definition at line 1678 of file DrawCommand.cpp.

                                                       {
    canvas->clear(SK_ColorWHITE);
    canvas->save();
 
    SkRect bounds = fBlob->bounds().makeOffset(fXPos, fYPos);
    xlate_and_scale_to_bounds(canvas, bounds);
 
    canvas->drawTextBlob(fBlob, fXPos, fYPos, fPaint);
 
    canvas->restore();
 
    return true;
}

toJSON()

void DrawTextBlobCommand::toJSON ( SkJSONWriter &  writer, UrlDataManager &  urlDataManager  ) const

overridevirtual

Reimplemented from DrawCommand.

Definition at line 1692 of file DrawCommand.cpp.

                                                                                           {
    INHERITED::toJSON(writer, urlDataManager);
    writer.appendFloat(DEBUGCANVAS_ATTRIBUTE_X, fXPos);
    writer.appendFloat(DEBUGCANVAS_ATTRIBUTE_Y, fYPos);
    SkRect bounds = fBlob->bounds();
    writer.appendName(DEBUGCANVAS_ATTRIBUTE_BOUNDS);
    MakeJsonRect(writer, bounds);
    writer.appendName(DEBUGCANVAS_ATTRIBUTE_PAINT);
    MakeJsonPaint(writer, fPaint, urlDataManager);
 
    writer.beginArray(DEBUGCANVAS_ATTRIBUTE_RUNS);
    SkTextBlobRunIterator iter(fBlob.get());
    while (!iter.done()) {
        writer.beginObject();  // run
        if (iter.textSize()) {
            writer.appendString(DEBUGCANVAS_ATTRIBUTE_TEXT, iter.text(), iter.textSize());
        }
        writer.appendName(DEBUGCANVAS_ATTRIBUTE_FONT);
        MakeJsonFont(iter.font(), writer, urlDataManager);
        writer.appendName(DEBUGCANVAS_ATTRIBUTE_COORDS);
        MakeJsonPoint(writer, iter.offset());
        writer.beginArray(DEBUGCANVAS_ATTRIBUTE_GLYPHS);
        for (uint32_t i = 0; i < iter.glyphCount(); i++) {
            writer.appendU32(iter.glyphs()[i]);
        }
        writer.endArray();  // glyphs
        if (iter.positioning() != SkTextBlobRunIterator::kDefault_Positioning) {
            writer.beginArray(DEBUGCANVAS_ATTRIBUTE_POSITIONS);
            const SkScalar* iterPositions = iter.pos();
            for (uint32_t i = 0; i < iter.glyphCount(); i++) {
                switch (iter.positioning()) {
                    case SkTextBlobRunIterator::kFull_Positioning:
                        MakeJsonPoint(writer, iterPositions[i * 2], iterPositions[i * 2 + 1]);
                        break;
                    case SkTextBlobRunIterator::kHorizontal_Positioning:
                        writer.appendFloat(iterPositions[i]);
                        break;
                    case SkTextBlobRunIterator::kDefault_Positioning: break;
                    case SkTextBlobRunIterator::kRSXform_Positioning:
                        // TODO_RSXFORM_BLOB
                        break;
                }
            }
            writer.endArray();  // positions
        }
        if (iter.clusters()) {
            writer.beginArray(DEBUGCANVAS_ATTRIBUTE_CLUSTERS);
            for (uint32_t i = 0; i < iter.glyphCount(); i++) {
                writer.appendU32(iter.clusters()[i]);
            }
            writer.endArray();  // clusters
        }
        writer.endObject();  // run
        iter.next();
    }
    writer.endArray();  // runs
 
    SkString desc;
    // make the bounds local by applying the x,y
    bounds.offset(fXPos, fYPos);
    writer.appendString(DEBUGCANVAS_ATTRIBUTE_SHORTDESC, *str_append(&desc, bounds));
}

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The documentation for this class was generated from the following files:

• third_party/skia/tools/debugger/DrawCommand.h
• third_party/skia/tools/debugger/DrawCommand.cpp