Ejemplo n.º 1
0
Character::Character(long ch, const Font* f, const Color* c) : Glyph() {
    c_ = ch;
    font_ = f;
    Resource::ref(font_);
    color_ = c;
    Resource::ref(color_);
    if (font_ != nil) {
	FontBoundingBox b;
	font_->char_bbox(c_, b);
	left_bearing_ = b.left_bearing();
	right_bearing_ = b.right_bearing();
	width_ = b.width();
	ascent_ = b.font_ascent();
	descent_ = b.font_descent();
	height_ = ascent_ + descent_;
	alignment_ = (height_ == 0) ? 0 : descent_ / height_;
    } else {
	left_bearing_ = 0;
	right_bearing_ = 0;
	ascent_ = 0;
	descent_ = 0;
	width_ = 0;
	height_ = 0;
	alignment_ = 0;
    }
}
Ejemplo n.º 2
0
Glyph* read_idraw_graphic (
    FILE* file, const Brush* pb, const Color* pfg, const Color* pbg,
    const Font* pf, Stipple* ps
) {
    skip(file);
    Transformer tx;
    Glyph* glyph = nil;
    const LayoutKit& layout = *LayoutKit::instance();
    if (fscanf(file, "%s", buffer) != EOF) {
        figure& fig = figures[which(figures, buffer)];

        if (strcmp(fig.name, "Idraw") == 0) {
            fscanf(file, "%d", &drawing_version);
            figures = versions[drawing_version];
        }
        const Brush* b = (fig.brush) ? read_brush(file) : nil;
        const Color* fg = (fig.foreground) ? read_color(file) : nil;
        const Color* bg = (fig.background) ? read_color(file) : nil;
        const Font* f = (fig.font) ? read_font(file) : nil;
        Stipple* s = (fig.pattern) ? read_stipple(file) : nil;
        if (fig.transformer) {
            read_transformer(file, tx);
        }

        if (pb) b = pb;
        if (pfg) fg = pfg;
        if (pbg) bg = pbg;
        if (pf) f = pf;
        if (ps) s = ps;

        if (fig.name == nil) {
            ; // error
        } else if (
            strcmp(fig.name, "Idraw") == 0 || strcmp(fig.name, "Pict") == 0
        ) {
            Glyph* pic = layout.overlay();
            Glyph* g;
            do {
                g = read_idraw_graphic(file, b, fg, bg, f, s);
                if (g != nil) {
                    pic->append(g);
                }
            } while (g != nil);
            glyph = pic;
        } else if (strcmp(fig.name, "eop") == 0) {
            glyph = nil;
        } else if (strcmp(fig.name, "Text") == 0) {
            skip(file);
            fscanf(file, "%s", buffer);
            getc(file);
            PolyGlyph* col = layout.vbox_first_aligned();
            PolyGlyph* line = layout.hbox_first_aligned();
	    FontBoundingBox bbox;
	    f->font_bbox(bbox);
            Coord lineheight = bbox.font_ascent() + bbox.font_descent();
            if (_idraw_font_metrics) {
                lineheight /= fixtextscale;
            }
            int c;
            while ((c = getc(file)) != ']') {
                if (c == '\n') {
                    line->append(layout.strut(f));
                    col->append(
			layout.v_fixed_span(line, lineheight)
		    );
                    line = layout.hbox();
                } else if (c == ' ') {
                    if (_idraw_font_metrics) {
                        line->append(
			    layout.shape_of(new Character(' ', f, fg))
			);
                    } else {
                        line->append(new Character(' ', f, fg));
                    }
                } else if (c != ')' && c != '(') {
                    if (c == '\\') {
                        c = getc(file);
			if (isdigit(c)) {
			    c -= '0';
			    c = (c * 8) + getc(file) - '0';
			    c = (c * 8) + getc(file) - '0';
			}
                    }
                    line->append(new Character(c, f, fg));
                }
            }
            Transformer fixtext;
            if (_idraw_font_metrics) {
                fixtext.scale(fixtextscale, fixtextscale);
            }
            fixtext.translate(0, bbox.font_descent() - lineheight);
            glyph = new TransformSetter(col, fixtext);
        } else {
            skip(file);
            int c = fig.coords;
            if (c == -1) { 
                fscanf(file, "%d", &c);
            }
            Coord xx, yy;
            Coord* x = new Coord[c];
            Coord* y = new Coord[c];
            for (int i = 0; i < c; ++i) {
                fscanf(file, "%g %g", &xx, &yy);
                x[i] = xx;
                y[i] = yy;
            }

            const Brush* brush = (b != no_brush) ? b : nil;
            const Color* stroke = fg;
            const Color* fill = (
                (s != no_stipple) ? dither_color(fg, bg, s->_dither) : nil
            );
            if (strcmp(fig.name, "Line") == 0) {
                glyph = new Line(brush, stroke, fill, x[0], y[0], x[1], y[1]);
            } else if (strcmp(fig.name, "BSpl") == 0) {
                glyph = new Open_BSpline(brush, stroke, fill, x, y, c);
            } else if (strcmp(fig.name, "CBSpl") == 0) {
                glyph = new Closed_BSpline(brush, stroke, fill, x, y, c);
            } else if (strcmp(fig.name, "MLine") == 0) {
                glyph = new Polyline(brush, stroke, fill, x, y, c);
            } else if (strcmp(fig.name, "Poly") == 0) {
                glyph = new Polygon(brush, stroke, fill, x, y, c);
            } else if (strcmp(fig.name, "Rect") == 0) {
                glyph = new Rectangle(brush, stroke, fill,x[0],y[0],x[1],y[1]);
            } else if (strcmp(fig.name, "Circ") == 0) {
                fscanf(file, "%f", &xx);
                glyph = new Circle(brush, stroke, fill, x[0], y[0], xx);
            } else if (strcmp(fig.name, "Elli") == 0) {
                fscanf(file, "%f %f", &xx, &yy);
                glyph = new Ellipse(brush, stroke, fill, x[0], y[0], xx, yy);
            } else {
                glyph = nil;
            }
            delete x;
            delete y;
        }
        for (int extra = fig.skip; extra > 0; --extra) {
            skip(file);
        }
    }
    if (glyph != nil && !tx.identity()) {
        glyph = new TransformSetter(glyph, tx);
    }
    return glyph;
}