%% options copyright owner = Dirk Krause copyright year = 2018-xxxx SPDX-License-Identifier: BSD-3-Clause %% header /** @file wxdtypes.h Data types for the wxd2lat program. The wxd_... types correspond to the Wxd_... type in the ../wxdkdraw/drawtypes.h file. Here we use char for UTF-8 encoded strings, in the ../wxdkdraw/drawtypes.h file we use wxChar for strings shown in the GUI. Although coordinates are defined as int in the file format we use double here to avoid extra memory allocations for coordinate values in bp and to avoid lots of (double) casts in calculations. */ #ifndef DK4STO_H_INCLUDED #include "dk4sto.h" #endif /** Arrowhead data. Type, length and width are obtained from file. Offset, cut and cut tolerance are calculated by the program. For polyline and arc the minimal cut is used, calculation is straightforward. The calculation on splines is iterative, so we accept a tolerance. */ typedef struct { double offset; /**< Offset arrow end point to draw point in bp. */ double cut; /**< Amount to cut the line in bp. */ double cuttol; /**< Cutting tolerance in bp. */ uint8_t type; /**< Arrowead type. */ uint8_t length; /**< Arrowhead length. */ uint8_t width; /**< Arrowhead width. */ } wxd_arrow_t; #if 0 /** Polygon or polyline point. */ typedef struct { double x; /**< X position. */ double y; /**< Y position. */ } wxd_point_t; #else /** Polygon or polyline point. */ typedef dk4_gra_point_t wxd_point_t; #endif /** X-Spline point. */ typedef struct { double x; /**< X position. */ double y; /**< Y position. */ double s; /**< S parameter. */ } wxd_spline_point_t; /** Details for a text. */ typedef struct { char *t; /**< Text to export, UTF-8 encoded. */ char *tsc; /**< Text to show on screen, UTF-8 encoded. */ double x; /**< X position. */ double y; /**< Y position. */ double a; /**< Rotation counterclockwise in degree. */ uint16_t fsz; /**< Font size. */ uint8_t find; /**< Font index. */ uint8_t al; /**< Horizontal align. */ uint8_t fl; /**< Text flags. */ } wxd_det_text_t; /** Polygon and polyline details. */ typedef struct { wxd_point_t *p; /**< Points. */ uint16_t n; /**< Number of points. */ } wxd_det_pl_t; /** X-Spline details (opened and closed). The sl and suml components are only used for open splines with at least one arrowhead. */ typedef struct { wxd_spline_point_t *p; /**< Points. */ double *sl; /**< Segment lengths. */ double ts; /**< Parameter t to start drawing. */ double te; /**< Parameter t to end drawing. */ double suml; /**< Summary of segment lengths. */ uint16_t n; /**< Number of points. */ } wxd_det_xs_t; /** Details for arcs (opened and closed). */ typedef struct { double a; /**< Start angle alpha counterclockwise in radians. */ double b; /**< End angle beta counterclockwise in radians. */ double x; /**< X position of center point. */ double y; /**< Y position of center point. */ double r; /**< Radius. */ int32_t x1; /**< X position point 1 in wxdkdraw units. */ int32_t y1; /**< Y position point 1 in wxdkdraw units. */ int32_t x2; /**< X position point 2 in wxdkdraw units. */ int32_t y2; /**< Y position point 2 in wxdkdraw units. */ int32_t x3; /**< X position point 3 in wxdkdraw units. */ int32_t y3; /**< Y position point 3 in wxdkdraw units. */ int8_t d; /**< Direction: 1=positive, -1=negative, 0=unknown. */ } wxd_det_arc_t; /** Details for dot. */ typedef struct { double x; /**< X position of center point. */ double y; /**< Y position of center point. */ double d; /**< Diameter in multiples of the base line width. */ } wxd_det_dot_t; /** Details for an ellipse or a circle. */ typedef struct { double x; /**< X position of center point. */ double y; /**< Y position of center point. */ double rx; /**< X radius for ellipse, radius for circle. */ double ry; /**< Y radius for ellipse. */ double a; /**< Rotation counterclockwise in degree. */ } wxd_det_ellipse_t; /** Details for a box. */ typedef struct { double xl; /**< Left X position. */ double xr; /**< Right X position. */ double yb; /**< Bottom Y position. */ double yt; /**< Top Y position. */ double r; /**< Corner radius, 0 for no rounded corner. */ } wxd_det_box_t; /** Details for an embedded image. */ typedef struct { char *fn; /**< File name for image, UTF-8 encoded. */ double x; /**< X position (left bottom point). */ double y; /**< Y position (left bottom point). */ double w; /**< Width of image range. */ double h; /**< Height of image range. */ uint8_t fl; /**< Image flags. */ int8_t r2g; /**< RGB to gray conversion method. */ int8_t r2c; /**< RGB to CMYK conversion method. */ } wxd_det_image_t; /* 2018-05-25 No details for groups. Conversion programs only need the flattened object list and are not interested in keeping the group structure. */ /** Union of different details. */ typedef union { wxd_det_text_t t; /**< Text details. */ wxd_det_pl_t p; /**< Polygon and polyline details. */ wxd_det_xs_t s; /**< Spline details. */ wxd_det_arc_t a; /**< Arc and circle details. */ wxd_det_dot_t d; /**< Dot details. */ wxd_det_ellipse_t e; /**< Ellipse details. */ wxd_det_box_t b; /**< Box details. */ wxd_det_image_t i; /**< Image details. */ } wxd_det_t; /** One drawing element. The csfs component contains the line cap style for open objects, the fill style for closed objects. The forward arrow and backward arrow components are ignored for closed objects. */ typedef struct { wxd_det_t det; /**< Graphics element details. */ wxd_arrow_t af; /**< Arrowhead forward. */ wxd_arrow_t ab; /**< Arrowhead backward. */ double lw; /**< Line width in multiples of the base width. */ dk4_um_t lino; /**< Line number. */ int16_t lay; /**< Layer number. */ int16_t ot; /**< Object type. */ uint8_t fc[3]; /**< Fill color. */ uint8_t sc[3]; /**< Stroke color. */ uint8_t csfs; /**< Line cap style (open), fill style (close). */ uint8_t ls; /**< Line style. */ uint8_t sl; /**< Style length. */ uint8_t js; /**< Line join style. */ uint8_t ml; /**< Miter limit for mitered line join. */ } wxd_object_t; /** Entire drawing. The flattened container contains all objects of the drawing without any group structure. In the drawing application elements are sorted by layer number, in the exporting application they are sorted by layer number and style attributes. The drawing program uses a second container s_grob representing the drawing inclusive group structure. For conversion programs like wxd2lat there is no need to keep the group structure, s_grob is not defined in these programs. */ typedef struct { dk4_sto_t *s_flat; /**< Flattened container of all objects. */ dk4_sto_it_t *i_flat; /**< Iterator for flattened container. */ double bbxl; /**< Bounding box, x left. */ double bbxr; /**< Bounding box, x right. */ double bbyb; /**< Bounding box, y bottom. */ double bbyt; /**< Bounding box, y top. */ double baselw; /**< Base line width in bp. */ uint16_t fv_maj; /**< Format version major number. */ uint16_t fv_min; /**< Format version minor number. */ } wxd_drawing_t; /** One segment of an arrowhead on an arc. */ typedef struct { /** The following points are in p: - Left end point (0). - Left control point (1). - Right control point (2). - Right end point (3). */ dk4_gra_point_t p[4]; } arc_ah_seg_t; /** Details for a spline arrowhead. */ typedef struct { wxd_point_t *ppoints; /**< Calculated points. */ double lo; /**< Length to offset (arrow head point). */ double lb; /**< Lenth to end of front side. */ double lc; /**< Length to end of back side, start center. */ double to; /**< Parameter for offset (arrow head point). */ double tb; /**< Parameter at end of front side. */ double tc; /**< Parameter at end of back side, start center. */ double csgn; /**< Coefficient for lengths. */ double lw; /**< Line width. */ double x0; /**< First point x. */ double y0; /**< First point y. */ double x1; /**< Second point x. */ double y1; /**< Second point y. */ size_t nf; /**< Number of segments in front side edges. */ size_t nb; /**< Number of segments in back side edges. */ size_t nc; /**< Number of segments in center side edge. */ size_t ifl; /**< Start index of first front left edge point. */ size_t ifr; /**< Start index of first front right edge point. */ size_t ibl; /**< Start index of first back left edge point. */ size_t ibr; /**< Start index of first back right edge point. */ size_t ic; /**< Start index of first center edge point. */ } sp_ah_t; /** Iteration object for X-spline calculations. */ typedef struct { wxd_object_t *pobj; dk4_er_t *erp; double l; double xslp; } wxd2lxs_iter_t; /* vim: set ai sw=4 ts=4 : */