2 * PostScript driver graphics functions
4 * Copyright 1998 Huw D M Davies
10 #if defined(HAVE_FLOAT_H)
17 #include "debugtools.h"
20 DEFAULT_DEBUG_CHANNEL(psdrv)
23 /***********************************************************************
26 BOOL PSDRV_LineTo(DC *dc, INT x, INT y)
28 TRACE("%d %d\n", x, y);
31 PSDRV_WriteMoveTo(dc, XLPTODP(dc, dc->CursPosX),
32 YLPTODP(dc, dc->CursPosY));
33 PSDRV_WriteLineTo(dc, XLPTODP(dc, x), YLPTODP(dc, y));
40 /***********************************************************************
43 BOOL PSDRV_Rectangle( DC *dc, INT left, INT top, INT right,
46 INT width = XLSTODS(dc, right - left);
47 INT height = YLSTODS(dc, bottom - top);
50 TRACE("%d %d - %d %d\n", left, top, right, bottom);
52 PSDRV_WriteRectangle(dc, XLPTODP(dc, left), YLPTODP(dc, top),
62 /***********************************************************************
65 BOOL PSDRV_RoundRect( DC *dc, INT left, INT top, INT right,
66 INT bottom, INT ell_width, INT ell_height )
68 left = XLPTODP( dc, left );
69 right = XLPTODP( dc, right );
70 top = YLPTODP( dc, top );
71 bottom = YLPTODP( dc, bottom );
72 ell_width = XLSTODS( dc, ell_width );
73 ell_height = YLSTODS( dc, ell_height );
75 if( left > right ) { INT tmp = left; left = right; right = tmp; }
76 if( top > bottom ) { INT tmp = top; top = bottom; bottom = tmp; }
78 if(ell_width > right - left) ell_width = right - left;
79 if(ell_height > bottom - top) ell_height = bottom - top;
81 PSDRV_WriteMoveTo( dc, left, top + ell_height/2 );
82 PSDRV_WriteArc( dc, left + ell_width/2, top + ell_height/2, ell_width,
83 ell_height, 90.0, 180.0);
84 PSDRV_WriteLineTo( dc, right - ell_width/2, top );
85 PSDRV_WriteArc( dc, right - ell_width/2, top + ell_height/2, ell_width,
86 ell_height, 0.0, 90.0);
87 PSDRV_WriteLineTo( dc, right, bottom - ell_height/2 );
88 PSDRV_WriteArc( dc, right - ell_width/2, bottom - ell_height/2, ell_width,
89 ell_height, -90.0, 0.0);
90 PSDRV_WriteLineTo( dc, right - ell_width/2, bottom);
91 PSDRV_WriteArc( dc, left + ell_width/2, bottom - ell_height/2, ell_width,
92 ell_height, 180.0, -90.0);
93 PSDRV_WriteClosePath( dc );
101 /***********************************************************************
104 * Does the work of Arc, Chord and Pie. lines is 0, 1 or 2 respectively.
106 static BOOL PSDRV_DrawArc( DC *dc, INT left, INT top,
107 INT right, INT bottom,
108 INT xstart, INT ystart,
113 double start_angle, end_angle, ratio;
115 x = XLPTODP(dc, (left + right)/2);
116 y = YLPTODP(dc, (top + bottom)/2);
118 w = XLSTODS(dc, (right - left));
119 h = YLSTODS(dc, (bottom - top));
123 ratio = ((double)w)/h;
125 /* angle is the angle after the rectangle is transformed to a square and is
126 measured anticlockwise from the +ve x-axis */
128 start_angle = atan2((double)(y - ystart) * ratio, (double)(xstart - x));
129 end_angle = atan2((double)(y - yend) * ratio, (double)(xend - x));
131 start_angle *= 180.0 / PI;
132 end_angle *= 180.0 / PI;
134 if(lines == 2) /* pie */
135 PSDRV_WriteMoveTo(dc, x, y);
137 PSDRV_WriteNewPath( dc );
139 PSDRV_WriteArc(dc, x, y, w, h, start_angle, end_angle);
140 if(lines == 1 || lines == 2) { /* chord or pie */
141 PSDRV_WriteClosePath(dc);
150 /***********************************************************************
153 BOOL PSDRV_Arc( DC *dc, INT left, INT top, INT right, INT bottom,
154 INT xstart, INT ystart, INT xend, INT yend )
156 return PSDRV_DrawArc( dc, left, top, right, bottom, xstart, ystart,
160 /***********************************************************************
163 BOOL PSDRV_Chord( DC *dc, INT left, INT top, INT right, INT bottom,
164 INT xstart, INT ystart, INT xend, INT yend )
166 return PSDRV_DrawArc( dc, left, top, right, bottom, xstart, ystart,
171 /***********************************************************************
174 BOOL PSDRV_Pie( DC *dc, INT left, INT top, INT right, INT bottom,
175 INT xstart, INT ystart, INT xend, INT yend )
177 return PSDRV_DrawArc( dc, left, top, right, bottom, xstart, ystart,
182 /***********************************************************************
185 BOOL PSDRV_Ellipse( DC *dc, INT left, INT top, INT right, INT bottom)
189 TRACE("%d %d - %d %d\n", left, top, right, bottom);
191 x = XLPTODP(dc, (left + right)/2);
192 y = YLPTODP(dc, (top + bottom)/2);
194 w = XLSTODS(dc, (right - left));
195 h = YLSTODS(dc, (bottom - top));
197 PSDRV_WriteNewPath(dc);
198 PSDRV_WriteArc(dc, x, y, w, h, 0.0, 360.0);
199 PSDRV_WriteClosePath(dc);
207 /***********************************************************************
210 BOOL PSDRV_PolyPolyline( DC *dc, const POINT* pts, const DWORD* counts,
213 DWORD polyline, line;
218 for(polyline = 0; polyline < polylines; polyline++) {
219 PSDRV_WriteMoveTo(dc, XLPTODP(dc, pt->x), YLPTODP(dc, pt->y));
221 for(line = 1; line < counts[polyline]; line++) {
222 PSDRV_WriteLineTo(dc, XLPTODP(dc, pt->x), YLPTODP(dc, pt->y));
232 /***********************************************************************
235 BOOL PSDRV_Polyline( DC *dc, const POINT* pt, INT count )
237 return PSDRV_PolyPolyline( dc, pt, (LPDWORD) &count, 1 );
241 /***********************************************************************
244 BOOL PSDRV_PolyPolygon( DC *dc, const POINT* pts, const INT* counts,
252 for(polygon = 0; polygon < polygons; polygon++) {
253 PSDRV_WriteMoveTo(dc, XLPTODP(dc, pt->x), YLPTODP(dc, pt->y));
255 for(line = 1; line < counts[polygon]; line++) {
256 PSDRV_WriteLineTo(dc, XLPTODP(dc, pt->x), YLPTODP(dc, pt->y));
259 PSDRV_WriteClosePath(dc);
262 if(dc->polyFillMode == ALTERNATE)
272 /***********************************************************************
275 BOOL PSDRV_Polygon( DC *dc, const POINT* pt, INT count )
277 return PSDRV_PolyPolygon( dc, pt, &count, 1 );
281 /***********************************************************************
284 COLORREF PSDRV_SetPixel( DC *dc, INT x, INT y, COLORREF color )
286 PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
292 PSDRV_WriteRectangle( dc, x, y, 0, 0 );
293 PSDRV_CreateColor( physDev, &pscolor, color );
294 PSDRV_WriteSetColor( dc, &pscolor );
295 PSDRV_WriteFill( dc );
300 /***********************************************************************
303 VOID PSDRV_DrawLine( DC *dc )
305 PSDRV_PDEVICE *physDev = (PSDRV_PDEVICE *)dc->physDev;
307 if (physDev->pen.style == PS_NULL)
308 PSDRV_WriteNewPath(dc);
310 PSDRV_WriteStroke(dc);