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Update decoration drawing to be less cairo path happy

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This commit is contained in:
Kristian Høgsberg 2010-06-15 17:16:35 -04:00
parent 49e868cb05
commit dcb71b62a0
6 changed files with 220 additions and 85 deletions
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138
cairo-util.c
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@ -114,4 +114,142 @@ blur_surface(cairo_surface_t *surface, int margin)
}
free(dst);
cairo_surface_mark_dirty(surface);
}
void
tile_mask(cairo_t *cr, cairo_surface_t *surface,
int x, int y, int width, int height, int margin)
{
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
int i, fx, fy;
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
pattern = cairo_pattern_create_for_surface (surface);
for (i = 0; i < 4; i++) {
fx = i & 1;
fy = i >> 1;
cairo_matrix_init_translate(&matrix,
-x + fx * (128 - width),
-y + fy * (128 - height));
cairo_pattern_set_matrix(pattern, &matrix);
cairo_reset_clip(cr);
cairo_rectangle(cr,
x + fx * (width - margin),
y + fy * (height - margin),
margin, margin);
cairo_clip (cr);
cairo_mask(cr, pattern);
}
/* Top strecth */
cairo_matrix_init_translate(&matrix, 64, 0);
cairo_matrix_scale(&matrix, 64.0 / (width - 2 * margin), 1);
cairo_matrix_translate(&matrix, -x - width / 2, -y);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x + margin, y, width - 2 * margin, margin);
cairo_reset_clip(cr);
cairo_rectangle(cr,
x + margin,
y,
width - 2 * margin, margin);
cairo_clip (cr);
cairo_mask(cr, pattern);
/* Bottom strecth */
cairo_matrix_translate(&matrix, 0, -height + 128);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_reset_clip(cr);
cairo_rectangle(cr, x + margin, y + height - margin,
width - 2 * margin, margin);
cairo_clip (cr);
cairo_mask(cr, pattern);
/* Left strecth */
cairo_matrix_init_translate(&matrix, 0, 64);
cairo_matrix_scale(&matrix, 1, 64.0 / (height - 2 * margin));
cairo_matrix_translate(&matrix, -x, -y - height / 2);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_reset_clip(cr);
cairo_rectangle(cr, x, y + margin, margin, height - 2 * margin);
cairo_clip (cr);
cairo_mask(cr, pattern);
/* Right strecth */
cairo_matrix_translate(&matrix, -width + 128, 0);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x + width - margin, y + margin,
margin, height - 2 * margin);
cairo_reset_clip(cr);
cairo_clip (cr);
cairo_mask(cr, pattern);
cairo_pattern_destroy(pattern);
cairo_reset_clip(cr);
}
void
tile_source(cairo_t *cr, cairo_surface_t *surface,
int x, int y, int width, int height, int margin)
{
cairo_pattern_t *pattern;
cairo_matrix_t matrix;
int i, fx, fy;
cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
pattern = cairo_pattern_create_for_surface (surface);
cairo_set_source(cr, pattern);
cairo_pattern_destroy(pattern);
for (i = 0; i < 4; i++) {
fx = i & 1;
fy = i >> 1;
cairo_matrix_init_translate(&matrix,
-x + fx * (128 - width),
-y + fy * (128 - height));
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr,
x + fx * (width - margin),
y + fy * (height - margin),
margin, margin);
cairo_fill(cr);
}
/* Top strecth */
cairo_matrix_init_translate(&matrix, 64, 0);
cairo_matrix_scale(&matrix, 64.0 / (width - 2 * margin), 1);
cairo_matrix_translate(&matrix, -x - width / 2, -y);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x + margin, y, width - 2 * margin, margin);
cairo_fill(cr);
/* Bottom strecth */
cairo_matrix_translate(&matrix, 0, -height + 128);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x + margin, y + height - margin,
width - 2 * margin, margin);
cairo_fill(cr);
/* Left strecth */
cairo_matrix_init_translate(&matrix, 0, 64);
cairo_matrix_scale(&matrix, 1, 64.0 / (height - 2 * margin));
cairo_matrix_translate(&matrix, -x, -y - height / 2);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x, y + margin, margin, height - 2 * margin);
cairo_fill(cr);
/* Right strecth */
cairo_matrix_translate(&matrix, -width + 128, 0);
cairo_pattern_set_matrix(pattern, &matrix);
cairo_rectangle(cr, x + width - margin, y + margin,
margin, height - 2 * margin);
cairo_fill(cr);
}