With the OpenGL target, this causes the graphic context to end its current //- active glBegin()/glEnd() pair, making it possible to call other OpenGL calls.
virtual void flush() { return; } //: Draw a pixel at (x, y) using the specified color. virtual void draw_pixel(int x, int y, const CL_Color &color)=0; //: Draw a line from (x1, y1) to (x2, y2) using the specified color. virtual void draw_line(float x1, float y1, float x2, float y2, const CL_Color &color)=0; //: Draw a chain of lines using the specified color. virtual void draw_lines(int count, double *vertices, const CL_Color &color)=0; //: Draw a rectangle using the specified color. virtual void draw_rect(const CL_Rectf &rect, const CL_Color &color)=0; //: Draw a gradient rectangle using the specified gradient. virtual void fill_rect(const CL_Rectf &rect, const CL_Gradient &gradient)=0; //: Draw a filled rectangle using the specified color. virtual void fill_rect(const CL_Rectf &rect, const CL_Color &color)=0; //: Draw a quad using the specified color. virtual void draw_quad(const CL_Quad &quad, const CL_Color &color)=0; //: Draw a gradient quad using the specified gradient. virtual void fill_quad(const CL_Quad &quad, const CL_Gradient &gradient)=0; //: Draw a filled quad using the specified color. virtual void fill_quad(const CL_Quad &quad, const CL_Color &color)=0; //: Draw triangles (optionally colored and uv-mapped). virtual void draw_triangles(CL_TriangleParams *params)=0; //: Clears the whole context using the specified color. virtual void clear(const CL_Color &color)=0; //: Set the current clipping rectangle. virtual void set_cliprect(const CL_Rect &rect); //: Push current clipping rectangle to stack; then set clipping rectangle to the //: union of the current rectangle and the passed rectangle. virtual void push_cliprect(const CL_Rect &rect); //: Push current clipping rectangle to the stack. virtual void push_cliprect(); //: Pop current clipping rectangle from the stack. virtual void pop_cliprect(); //: Called every time the active modelview have changed. virtual void modelview_changed()=0; //: Sets the model view matrix to a new matrix. void set_modelview(const CL_Matrix4x4 &matrix); //: Multiplies the passed matrix onto the model view matrix. void add_modelview(const CL_Matrix4x4 &matrix); //: Pushes current model view matrix onto the model view stack. void push_modelview(); //: Sets a translate offset matrix, ignoring any earlier modelview settings. //-This offset will affect any subsequent display operations on the current //- displaycard, by translating the position of the display operation with the offset.
void set_translate(double x, double y, double z = 0.0); //: Adds the translate offset. //-This offset will affect any subsequent display operations on the current //- displaycard, by translating the position of the display operation with the offset. //- The offset will be offset by any previous offsets pushed onto the stack, //- eg. it inherits the previous offset.
void add_translate(double x, double y, double z = 0.0); //: Push translation offset onto model view stack. //-This function is a convenience function for calling push_modelview, then add_translate.
//-This offset will affect any subsequent display operations on the current //- displaycard, by translating the position of the display operation with the offset. //- The offset will be offset by any previous offsets pushed onto the stack, //- eg. it inherits the previous offset.
void push_translate(double x, double y, double z = 0.0); //: Sets a rotation matrix, ignoring any earlier model view settings. void set_rotate(double angle, double x = 0.0, double y = 0.0, double z = 1.0); //: Adds a rotation matrix to existing model view. void add_rotate(double angle, double x = 0.0, double y = 0.0, double z = 1.0); //: Pushes a rotation matrix onto model view stack. void push_rotate(double angle, double x = 0.0, double y = 0.0, double z = 1.0); //: Sets a scale matrix, ignoring any earlier model view settings. void set_scale(double x, double y, double z = 1.0); //: Adds a scale matrix to existing model view. void add_scale(double x, double y, double z = 1.0); //: Pushes a scale matrix onto model view stack. void push_scale(double x, double y, double z = 1.0); //: Pops last pushed model view matrix off the stack and makes it the active one. void pop_modelview(); //: Clear the stencil buffer //param int value : value to clear to. Default: 0 virtual void clear_stencil(int value)=0; //: Set stencil test function when writing to stencil, and operations to do when a test passes or fails //param CL_StencilOp pass : Modification to stencil buffer when a test passes. //param CL_StencilOp fail : Modification to stencil buffer when a test fails. //param CL_StencilFunc func : Type of test to do when writing to stencil. //param int ref : value compared to stencil contents. Default: 1 virtual void set_stencil_operation(CL_StencilOp pass, CL_StencilOp fail, CL_StencilFunc func, int ref)=0; //: Enables writing to the stencil buffer //param bool enabled : Enables/disables stencil testing. //param bool visible : Enables/disables color buffer writing if stencil writing is enabled. Default: true. //param float alpha_limit : Only pixels with alpha >= alpha limit are drawn to the stencil buffer. virtual void enable_stencil_write(bool enabled, bool visible, float alpha_limit)=0; //: Enables stencil buffer testing //-Individual pixels are tested against the values in the stencil buffer, and //- drawn depending on the comparison result. This can be used for masking and //- boolean operations on bitmaps
//param bool enabled : Enables/disables stencil testing. //param int func : Type of comparison. Default: lequal (pass if ref <= stencil) //param int ref : Reference value that the stencil is compared with. Default: 1 virtual void enable_stencil_test(bool enabled, CL_StencilFunc func, int ref)=0; //! Implementation: protected: std::list