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Moved line and shape drawing code out of the opengl folder, since it no longer directly calls any OpenGL functions.

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branch : minor
This commit is contained in:
Alex Szpakowski
2016-12-27 23:21:25 -04:00
parent 70df473680
commit 603c3e43d5
8 changed files with 353 additions and 366 deletions
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src/modules/graphics/Graphics.h
+84
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@@ -317,6 +317,86 @@ public:
virtual Colorf getColor() const = 0;
virtual float getLineWidth() const = 0;
virtual LineStyle getLineStyle() const = 0;
virtual LineJoin getLineJoin() const = 0;
/**
* Draws a series of lines connecting the given vertices.
* @param coords Vertex components (x1, y1, ..., xn, yn). If x1,y1 == xn,yn the line will be drawn closed.
* @param count Number of items in the array, i.e. count = 2 * n
**/
void polyline(const float *coords, size_t count);
/**
* Draws a rectangle.
* @param x Position along x-axis for top-left corner.
* @param y Position along y-axis for top-left corner.
* @param w The width of the rectangle.
* @param h The height of the rectangle.
**/
void rectangle(DrawMode mode, float x, float y, float w, float h);
/**
* Variant of rectangle that draws a rounded rectangle.
* @param mode The mode of drawing (line/filled).
* @param x X-coordinate of top-left corner
* @param y Y-coordinate of top-left corner
* @param w The width of the rectangle.
* @param h The height of the rectangle.
* @param rx The radius of the corners on the x axis
* @param ry The radius of the corners on the y axis
* @param points The number of points to use per corner
**/
void rectangle(DrawMode mode, float x, float y, float w, float h, float rx, float ry, int points);
void rectangle(DrawMode mode, float x, float y, float w, float h, float rx, float ry);
/**
* Draws a circle using the specified arguments.
* @param mode The mode of drawing (line/filled).
* @param x X-coordinate.
* @param y Y-coordinate.
* @param radius Radius of the circle.
* @param points Number of points to use to draw the circle.
**/
void circle(DrawMode mode, float x, float y, float radius, int points);
void circle(DrawMode mode, float x, float y, float radius);
/**
* Draws an ellipse using the specified arguments.
* @param mode The mode of drawing (line/filled).
* @param x X-coordinate of center
* @param y Y-coordinate of center
* @param a Radius in x-direction
* @param b Radius in y-direction
* @param points Number of points to use to draw the circle.
**/
void ellipse(DrawMode mode, float x, float y, float a, float b, int points);
void ellipse(DrawMode mode, float x, float y, float a, float b);
/**
* Draws an arc using the specified arguments.
* @param drawmode The mode of drawing (line/filled).
* @param arcmode The type of arc.
* @param x X-coordinate.
* @param y Y-coordinate.
* @param radius Radius of the arc.
* @param angle1 The angle at which the arc begins.
* @param angle2 The angle at which the arc terminates.
* @param points Number of points to use to draw the arc.
**/
void arc(DrawMode drawmode, ArcMode arcmode, float x, float y, float radius, float angle1, float angle2, int points);
void arc(DrawMode drawmode, ArcMode arcmode, float x, float y, float radius, float angle1, float angle2);
/**
* Draws a polygon with an arbitrary number of vertices.
* @param mode The type of drawing (line/filled).
* @param coords Vertex components (x1, y1, x2, y2, etc.)
* @param count Coord array size
**/
void polygon(DrawMode mode, const float *coords, size_t count);
const Matrix4 &getTransform() const;
const Matrix4 &getProjection() const;
@@ -386,8 +466,12 @@ protected:
std::vector<Matrix4> transformStack;
Matrix4 projectionMatrix;
std::vector<double> pixelScaleStack;
private:
int calculateEllipsePoints(float rx, float ry) const;
std::vector<uint8> scratchBuffer;
static StringMap<DrawMode, DRAW_MAX_ENUM>::Entry drawModeEntries[];