mirror of https://github.com/axmolengine/axmol.git
76 lines
2.0 KiB
C++
76 lines
2.0 KiB
C++
/*
|
|
Copyright 2010 Google Inc.
|
|
|
|
Licensed under the Apache License, Version 2.0 (the "License");
|
|
you may not use this file except in compliance with the License.
|
|
You may obtain a copy of the License at
|
|
|
|
http://www.apache.org/licenses/LICENSE-2.0
|
|
|
|
Unless required by applicable law or agreed to in writing, software
|
|
distributed under the License is distributed on an "AS IS" BASIS,
|
|
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
See the License for the specific language governing permissions and
|
|
limitations under the License.
|
|
*/
|
|
|
|
|
|
#ifndef GrTextContext_DEFINED
|
|
#define GrTextContext_DEFINED
|
|
|
|
#include "GrGlyph.h"
|
|
#include "GrPaint.h"
|
|
#include "GrMatrix.h"
|
|
|
|
struct GrGpuTextVertex;
|
|
class GrContext;
|
|
class GrTextStrike;
|
|
class GrFontScaler;
|
|
class GrDrawTarget;
|
|
|
|
class GrTextContext {
|
|
public:
|
|
GrTextContext(GrContext*,
|
|
const GrPaint& paint,
|
|
const GrMatrix* extMatrix = NULL);
|
|
~GrTextContext();
|
|
|
|
void drawPackedGlyph(GrGlyph::PackedID, GrFixed left, GrFixed top,
|
|
GrFontScaler*);
|
|
|
|
void flush(); // optional; automatically called by destructor
|
|
|
|
private:
|
|
GrPaint fPaint;
|
|
GrVertexLayout fVertexLayout;
|
|
GrContext* fContext;
|
|
GrDrawTarget* fDrawTarget;
|
|
|
|
GrMatrix fExtMatrix;
|
|
GrFontScaler* fScaler;
|
|
GrTextStrike* fStrike;
|
|
|
|
inline void flushGlyphs();
|
|
void setupDrawTarget();
|
|
|
|
enum {
|
|
kMinRequestedGlyphs = 1,
|
|
kDefaultRequestedGlyphs = 64,
|
|
kMinRequestedVerts = kMinRequestedGlyphs * 4,
|
|
kDefaultRequestedVerts = kDefaultRequestedGlyphs * 4,
|
|
};
|
|
|
|
GrGpuTextVertex* fVertices;
|
|
|
|
int32_t fMaxVertices;
|
|
GrTexture* fCurrTexture;
|
|
int fCurrVertex;
|
|
|
|
GrIRect fClipRect;
|
|
GrMatrix fOrigViewMatrix; // restore previous viewmatrix
|
|
};
|
|
|
|
#endif
|
|
|
|
|