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#pragma once
#include <memory>
#include "globalincs/pstypes.h"
#include "nanovg/nanovg.h"
#include "graphics/2d.h"
namespace graphics
{
namespace paths
{
enum Direction
{
DIR_CCW,
DIR_CW
};
enum Solidity
{
SOLIDITY_SOLID,
SOLIDITY_HOLE
};
enum TextAlign
{
// Horizontal align
ALIGN_LEFT = 1 << 0, // Default, align text horizontally to left.
ALIGN_CENTER = 1 << 1, // Align text horizontally to center.
ALIGN_RIGHT = 1 << 2, // Align text horizontally to right.
// Vertical align
ALIGN_TOP = 1 << 3, // Align text vertically to top.
ALIGN_MIDDLE = 1 << 4, // Align text vertically to middle.
ALIGN_BOTTOM = 1 << 5, // Align text vertically to bottom.
ALIGN_BASELINE = 1 << 6, // Default, align text vertically to baseline.
};
/**
* @brief A paint used for drawing
* @attention The contents of this struct are private, do not rely on any form of structure in it
*/
struct DrawPaint
{
// Use a union when more backends are implemented
NVGpaint nvg;
};
class PathRenderer
{
private:
static std::unique_ptr<PathRenderer> s_instance;
NVGcontext* m_context;
bool m_inFrame;
public:
PathRenderer();
~PathRenderer();
static bool init();
static inline PathRenderer* instance()
{
return s_instance.get();
}
static void shutdown();
void beginFrame();
void cancelFrame();
void endFrame();
void scissor(float x, float y, float w, float h);
void resetScissor();
/* begin transforms */
void resetTransform();
void translate(float x, float y);
void rotate(float rad);
void skewX(float rad);
void skewY(float rad);
void scale(float x, float y);
/* end transforms */
/* begin paint creation */
DrawPaint createLinearGradient(float sx, float sy, float ex,
float ey, color* icol, color* ocol);
/* end paint creation */
/* begin color handling */
void setAlpha(float alpha);
void setFillColor(color* color);
void setFillPaint(const DrawPaint& paint);
void setStrokeColor(color* color);
void setStrokePaint(const DrawPaint& paint);
void setStrokeWidth(float witdh);
/* end color handling */
void beginPath();
void moveTo(float x, float y);
void setSolidity(Solidity solid);
/* begin shapes
TODO: Replace this with doxygen */
void lineTo(float x, float y);
void rectangle(float x, float y, float w, float h);
void roundedRectangle(float x, float y, float w, float h, float radius);
void circle(float x, float y, float r);
void ellipse(float x, float y, float rx, float ry);
void arc(float cx, float cy, float r, float a0, float a1, Direction dir);
/* end shapes */
/* begin font and text */
int createFontMem(const char* name, unsigned char* data, int ndata, int freeData);
void fontSize(float size);
void textLetterSpacing(float spacing);
void fontFaceId(int font);
float text(float x, float y, const char* string, const char* end);
float textBounds(float x, float y, const char* string, const char* end, float* bounds);
void textMetrics(float* ascender, float* descender, float* lineh);
void textAlign(TextAlign align);
/* end font and text */
void closePath();
void fill();
void stroke();
void saveState();
void resetState();
void restoreState();
};
}
}
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