static void pdf_write_arrow_appearance(fz_context *ctx, fz_buffer *buf, fz_rect *rect, float x, float y, float dx, float dy, float w) { float r = fz_max(1, w); float angle = atan2f(dy, dx); fz_point v, a, b; v = rotate_vector(angle, 8.8f*r, 4.5f*r); a = fz_make_point(x + v.x, y + v.y); v = rotate_vector(angle, 8.8f*r, -4.5f*r); b = fz_make_point(x + v.x, y + v.y); *rect = fz_include_point_in_rect(*rect, a); *rect = fz_include_point_in_rect(*rect, b); *rect = fz_expand_rect(*rect, w); fz_append_printf(ctx, buf, "%g %g m\n", a.x, a.y); fz_append_printf(ctx, buf, "%g %g l\n", x, y); fz_append_printf(ctx, buf, "%g %g l\n", b.x, b.y); }
static void pdf_write_polygon_appearance(fz_context *ctx, pdf_annot *annot, fz_buffer *buf, fz_rect *rect, int close) { pdf_obj *verts; fz_point p; int i, n; float lw; lw = pdf_write_border_appearance(ctx, annot, buf); pdf_write_stroke_color_appearance(ctx, annot, buf); *rect = fz_empty_rect; verts = pdf_dict_get(ctx, annot->obj, PDF_NAME(Vertices)); n = pdf_array_len(ctx, verts) / 2; if (n > 0) { for (i = 0; i < n; ++i) { p.x = pdf_array_get_real(ctx, verts, i*2+0); p.y = pdf_array_get_real(ctx, verts, i*2+1); if (i == 0) { rect->x0 = rect->x1 = p.x; rect->y0 = rect->y1 = p.y; } else *rect = fz_include_point_in_rect(*rect, p); if (i == 0) fz_append_printf(ctx, buf, "%g %g m\n", p.x, p.y); else fz_append_printf(ctx, buf, "%g %g l\n", p.x, p.y); } fz_append_string(ctx, buf, close ? "s" : "S"); *rect = fz_expand_rect(*rect, lw); } }
static void pdf_write_ink_appearance(fz_context *ctx, pdf_annot *annot, fz_buffer *buf, fz_rect *rect) { pdf_obj *ink_list, *stroke; int i, n, k, m; float lw; fz_point p; lw = pdf_write_border_appearance(ctx, annot, buf); pdf_write_stroke_color_appearance(ctx, annot, buf); *rect = fz_empty_rect; ink_list = pdf_dict_get(ctx, annot->obj, PDF_NAME(InkList)); n = pdf_array_len(ctx, ink_list); for (i = 0; i < n; ++i) { stroke = pdf_array_get(ctx, ink_list, i); m = pdf_array_len(ctx, stroke) / 2; for (k = 0; k < m; ++k) { p.x = pdf_array_get_real(ctx, stroke, k*2+0); p.y = pdf_array_get_real(ctx, stroke, k*2+1); if (i == 0 && k == 0) { rect->x0 = rect->x1 = p.x; rect->y0 = rect->y1 = p.y; } else *rect = fz_include_point_in_rect(*rect, p); fz_append_printf(ctx, buf, "%g %g %c\n", p.x, p.y, k == 0 ? 'm' : 'l'); } } fz_append_printf(ctx, buf, "S"); *rect = fz_expand_rect(*rect, lw); }
void pdf_set_ink_annot_list(fz_context *ctx, pdf_document *doc, pdf_annot *annot, fz_point *pts, int *counts, int ncount, float color[3], float thickness) { fz_matrix ctm; pdf_obj *list = pdf_new_array(ctx, doc, ncount); pdf_obj *bs, *col; fz_rect rect; int i, k = 0; fz_invert_matrix(&ctm, &annot->page->ctm); pdf_dict_put_drop(ctx, annot->obj, PDF_NAME_InkList, list); for (i = 0; i < ncount; i++) { int j; pdf_obj *arc = pdf_new_array(ctx, doc, counts[i]); pdf_array_push_drop(ctx, list, arc); for (j = 0; j < counts[i]; j++) { fz_point pt = pts[k]; fz_transform_point(&pt, &ctm); if (i == 0 && j == 0) { rect.x0 = rect.x1 = pt.x; rect.y0 = rect.y1 = pt.y; } else { fz_include_point_in_rect(&rect, &pt); } pdf_array_push_drop(ctx, arc, pdf_new_real(ctx, doc, pt.x)); pdf_array_push_drop(ctx, arc, pdf_new_real(ctx, doc, pt.y)); k++; } } /* Expand the rectangle by thickness all around. We cannot use fz_expand_rect because the rectangle might be empty in the single point case */ if (k > 0) { rect.x0 -= thickness; rect.y0 -= thickness; rect.x1 += thickness; rect.y1 += thickness; } pdf_dict_put_drop(ctx, annot->obj, PDF_NAME_Rect, pdf_new_rect(ctx, doc, &rect)); update_rect(ctx, annot); bs = pdf_new_dict(ctx, doc, 1); pdf_dict_put_drop(ctx, annot->obj, PDF_NAME_BS, bs); pdf_dict_put_drop(ctx, bs, PDF_NAME_W, pdf_new_real(ctx, doc, thickness)); col = pdf_new_array(ctx, doc, 3); pdf_dict_put_drop(ctx, annot->obj, PDF_NAME_C, col); for (i = 0; i < 3; i++) pdf_array_push_drop(ctx, col, pdf_new_real(ctx, doc, color[i])); }
static void pdf_write_line_cap_appearance(fz_context *ctx, fz_buffer *buf, fz_rect *rect, float x, float y, float dx, float dy, float w, int ic, pdf_obj *cap) { if (cap == PDF_NAME(Square)) { float r = fz_max(2.5f, w * 2.5f); fz_append_printf(ctx, buf, "%g %g %g %g re\n", x-r, y-r, r*2, r*2); fz_append_string(ctx, buf, ic ? "b\n" : "s\n"); include_cap(rect, x, y, r); } else if (cap == PDF_NAME(Circle)) { float r = fz_max(2.5f, w * 2.5f); float m = r * CIRCLE_MAGIC; fz_append_printf(ctx, buf, "%g %g m\n", x, y+r); fz_append_printf(ctx, buf, "%g %g %g %g %g %g c\n", x+m, y+r, x+r, y+m, x+r, y); fz_append_printf(ctx, buf, "%g %g %g %g %g %g c\n", x+r, y-m, x+m, y-r, x, y-r); fz_append_printf(ctx, buf, "%g %g %g %g %g %g c\n", x-m, y-r, x-r, y-m, x-r, y); fz_append_printf(ctx, buf, "%g %g %g %g %g %g c\n", x-r, y+m, x-m, y+r, x, y+r); fz_append_string(ctx, buf, ic ? "b\n" : "s\n"); include_cap(rect, x, y, r); } else if (cap == PDF_NAME(Diamond)) { float r = fz_max(2.5f, w * 2.5f); fz_append_printf(ctx, buf, "%g %g m\n", x, y+r); fz_append_printf(ctx, buf, "%g %g l\n", x+r, y); fz_append_printf(ctx, buf, "%g %g l\n", x, y-r); fz_append_printf(ctx, buf, "%g %g l\n", x-r, y); fz_append_string(ctx, buf, ic ? "b\n" : "s\n"); include_cap(rect, x, y, r); } else if (cap == PDF_NAME(OpenArrow)) { pdf_write_arrow_appearance(ctx, buf, rect, x, y, dx, dy, w); fz_append_string(ctx, buf, "S\n"); } else if (cap == PDF_NAME(ClosedArrow)) { pdf_write_arrow_appearance(ctx, buf, rect, x, y, dx, dy, w); fz_append_string(ctx, buf, ic ? "b\n" : "s\n"); } /* PDF 1.5 */ else if (cap == PDF_NAME(Butt)) { float r = fz_max(3, w * 3); fz_point a = { x-dy*r, y+dx*r }; fz_point b = { x+dy*r, y-dx*r }; fz_append_printf(ctx, buf, "%g %g m\n", a.x, a.y); fz_append_printf(ctx, buf, "%g %g l\n", b.x, b.y); fz_append_string(ctx, buf, "S\n"); *rect = fz_include_point_in_rect(*rect, a); *rect = fz_include_point_in_rect(*rect, b); } /* PDF 1.6 */ else if (cap == PDF_NAME(ROpenArrow)) { pdf_write_arrow_appearance(ctx, buf, rect, x, y, -dx, -dy, w); fz_append_string(ctx, buf, "S\n"); } else if (cap == PDF_NAME(RClosedArrow)) { pdf_write_arrow_appearance(ctx, buf, rect, x, y, -dx, -dy, w); fz_append_string(ctx, buf, ic ? "b\n" : "s\n"); } else if (cap == PDF_NAME(Slash)) { float r = fz_max(5, w * 5); float angle = atan2f(dy, dx) - (30 * FZ_PI / 180); fz_point a, b, v; v = rotate_vector(angle, 0, r); a = fz_make_point(x + v.x, y + v.y); v = rotate_vector(angle, 0, -r); b = fz_make_point(x + v.x, y + v.y); fz_append_printf(ctx, buf, "%g %g m\n", a.x, a.y); fz_append_printf(ctx, buf, "%g %g l\n", b.x, b.y); fz_append_string(ctx, buf, "S\n"); *rect = fz_include_point_in_rect(*rect, a); *rect = fz_include_point_in_rect(*rect, b); } }