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