/*************************************************************************** gb.paint.h (c) 2000-2009 Benoît Minisini This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. ***************************************************************************/ #ifndef __GB_PAINT_H #define __GB_PAINT_H #include "gb_common.h" #include "gambas.h" #include "gb.draw.h" enum { GB_PAINT_EXTEND_PAD, GB_PAINT_EXTEND_REPEAT, GB_PAINT_EXTEND_REFLECT }; enum { GB_PAINT_FILL_RULE_WINDING, GB_PAINT_FILL_RULE_EVEN_ODD }; enum { GB_PAINT_LINE_CAP_BUTT, GB_PAINT_LINE_CAP_ROUND, GB_PAINT_LINE_CAP_SQUARE }; enum { GB_PAINT_LINE_JOIN_MITER, GB_PAINT_LINE_JOIN_ROUND, GB_PAINT_LINE_JOIN_BEVEL }; enum { GB_PAINT_OPERATOR_CLEAR, GB_PAINT_OPERATOR_SOURCE, GB_PAINT_OPERATOR_OVER, GB_PAINT_OPERATOR_IN, GB_PAINT_OPERATOR_OUT, GB_PAINT_OPERATOR_ATOP, GB_PAINT_OPERATOR_DEST, GB_PAINT_OPERATOR_DEST_OVER, GB_PAINT_OPERATOR_DEST_IN, GB_PAINT_OPERATOR_DEST_OUT, GB_PAINT_OPERATOR_DEST_ATOP, GB_PAINT_OPERATOR_XOR, GB_PAINT_OPERATOR_ADD, GB_PAINT_OPERATOR_SATURATE }; struct GB_PAINT_DESC; typedef struct { float x1, y1, x2, y2; } GB_EXTENTS; typedef void *GB_BRUSH; typedef void *GB_TRANSFORM; typedef struct { GB_BASE ob; GB_EXTENTS ext; } PAINT_EXTENTS; typedef struct { GB_BASE ob; struct GB_PAINT_DESC *desc; // drawing driver GB_TRANSFORM transform; } PAINT_MATRIX; typedef struct { GB_BASE ob; struct GB_PAINT_DESC *desc; // drawing driver GB_BRUSH brush; // brush } PAINT_BRUSH; typedef struct GB_PAINT { struct GB_PAINT_DESC *desc; // drawing driver struct GB_PAINT *previous; // previous drawing context void *device; // drawing object double width; // device width in device coordinates double height; // device height in device coordinates int resolutionX; // device horizontal resolution in DPI int resolutionY; // device vertical resolution in DPI PAINT_BRUSH *brush; // current brush unsigned opened : 1; // if the painting has been opened void *draw; // if the device was drawn when calling Paint.Begin void *extra; // driver-specific state } GB_PAINT; typedef struct GB_PAINT_DESC { // Size of the GB_PAINT structure extra data int size; // Begins and terminates the drawing int (*Begin)(GB_PAINT *d); void (*End)(GB_PAINT *d); void (*Save)(GB_PAINT *d); void (*Restore)(GB_PAINT *d); void (*Font)(GB_PAINT *d, int set, GB_FONT *font); void (*Clip)(GB_PAINT *d, int preserve); void (*ResetClip)(GB_PAINT *d); void (*ClipExtents)(GB_PAINT *d, GB_EXTENTS *ext); void (*Fill)(GB_PAINT *d, int preserve); void (*Stroke)(GB_PAINT *d, int preserve); void (*PathExtents)(GB_PAINT *d, GB_EXTENTS *ext); int (*PathContains)(GB_PAINT *d, float x, float y); void (*Dash)(GB_PAINT *d, int set, float **dash, int *count); void (*DashOffset)(GB_PAINT *d, int set, float *offset); void (*FillRule)(GB_PAINT *d, int set, int *value); void (*LineCap)(GB_PAINT *d, int set, int *value); void (*LineJoin)(GB_PAINT *d, int set, int *value); void (*LineWidth)(GB_PAINT *d, int set, float *value); void (*MiterLimit)(GB_PAINT *d, int set, float *value); void (*Operator)(GB_PAINT *d, int set, int *value); void (*NewPath)(GB_PAINT *d); void (*ClosePath)(GB_PAINT *d); void (*Arc)(GB_PAINT *d, float xc, float yc, float radius, float angle, float length); void (*Rectangle)(GB_PAINT *d, float x, float y, float width, float height); void (*GetCurrentPoint)(GB_PAINT *d, float *x, float *y); void (*MoveTo)(GB_PAINT *d, float x, float y); void (*LineTo)(GB_PAINT *d, float x, float y); void (*CurveTo)(GB_PAINT *d, float x1, float y1, float x2, float y2, float x3, float y3); void (*Text)(GB_PAINT *d, const char *text, int len, float w, float h, int align); void (*TextExtents)(GB_PAINT *d, const char *text, int len, GB_EXTENTS *ext); void (*RichText)(GB_PAINT *d, const char *text, int len, float w, float h, int align); void (*RichTextExtents)(GB_PAINT *d, const char *text, int len, GB_EXTENTS *ext); void (*Matrix)(GB_PAINT *d, int set, GB_TRANSFORM matrix); void (*SetBrush)(GB_PAINT *d, GB_BRUSH brush); void (*DrawImage)(GB_PAINT *d, GB_IMAGE image, float x, float y, float w, float h); struct { void (*Free)(GB_BRUSH brush); void (*Color)(GB_BRUSH *brush, GB_COLOR color); void (*Image)(GB_BRUSH *brush, GB_IMAGE image); void (*LinearGradient)(GB_BRUSH *brush, float x0, float y0, float x1, float y1, int nstop, double *positions, GB_COLOR *colors, int extend); void (*RadialGradient)(GB_BRUSH *brush, float cx, float cy, float r, float fx, float fy, int nstop, double *positions, GB_COLOR *colors, int extend); void (*Matrix)(GB_BRUSH brush, int set, GB_TRANSFORM matrix); } Brush; struct { void (*Create)(GB_TRANSFORM *matrix); void (*Delete)(GB_TRANSFORM *matrix); void (*Init)(GB_TRANSFORM matrix, float xx, float yx, float xy, float yy, float x0, float y0); void (*Translate)(GB_TRANSFORM matrix, float tx, float ty); void (*Scale)(GB_TRANSFORM matrix, float sx, float sy); void (*Rotate)(GB_TRANSFORM matrix, float angle); int (*Invert)(GB_TRANSFORM matrix); void (*Multiply)(GB_TRANSFORM matrix, GB_TRANSFORM matrix2); } Transform; } GB_PAINT_DESC; #endif