Attachment 116882 Details for Bug 91195 – clipped dashed line not drawn

clipped dashed line not drawn

lineIntersectBox.c (text/plain), 1.23 KB, created by Tom Klein on 2015-07-02 17:16:42 UTC

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Description:

Filename:

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Creator: Tom Klein

Created: 2015-07-02 17:16:42 UTC

Size: 1.23 KB

patch

obsolete

>#include <cairo.h>
>
>void
>draw_path(cairo_t* cr) {
>
>  cairo_move_to(cr, 270, 450);
>  cairo_line_to(cr, 250, 450);
>  cairo_line_to(cr, 270, 50);
>}
>
>int
>main (int argc, char *argv[])
>{
>
>  cairo_surface_t *surface =
>    cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 500, 500);
>  cairo_t *cr =
>    cairo_create (surface);
>
>  cairo_set_line_width(cr, 20);
>  cairo_set_miter_limit(cr, 4);
>
>  // the path unclipped, undashed
>  draw_path(cr);
>  cairo_set_source_rgb(cr, 0, 0, 1);
>  cairo_stroke(cr);
>
>  // clip rectangle
>  cairo_move_to(cr, 110, 200);
>  cairo_line_to(cr, 390, 200);
>  cairo_line_to(cr, 390, 300);
>  cairo_line_to(cr, 110, 300);
>  cairo_close_path(cr);
>  cairo_set_source_rgb(cr, .5, .5, .5);
>  cairo_fill_preserve(cr);
>  cairo_clip(cr);
>
>  // the original path, clipped but undashed
>  draw_path(cr);
>  cairo_set_source_rgb(cr, 1, 0, 0);
>  cairo_stroke(cr);
>
>  // the original path, clipped and dashed (with a long dash) - this one fails,
>  // it should overwrite the red with green
>  double dashes[] = {20000.};
>  cairo_set_dash(cr, dashes, 1, 0);
>  draw_path(cr);
>  cairo_set_source_rgb(cr, 0, 1, 0);
>  cairo_stroke(cr);
>  
>  cairo_destroy (cr);
>  cairo_surface_write_to_png(surface, "hello.png");
>  cairo_surface_destroy (surface);
>  return 0;
>}

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Attachments on bug 91195: 116882 | 117352

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