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Diffstat (limited to 'src/compositor/region-utils.h')
| -rw-r--r-- | src/compositor/region-utils.h | 119 |
1 files changed, 0 insertions, 119 deletions
diff --git a/src/compositor/region-utils.h b/src/compositor/region-utils.h deleted file mode 100644 index 298c5540e..000000000 --- a/src/compositor/region-utils.h +++ /dev/null @@ -1,119 +0,0 @@ -/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*- */ -/* - * Utilities for region manipulation - * - * Copyright (C) 2010 Red Hat, Inc. - * - * This program is free software; you can redistribute it and/or - * modify it under the terms of the GNU General Public License as - * published by the Free Software Foundation; either version 2 of the - * License, or (at your option) any later version. - * - * This program is distributed in the hope that it will be useful, but - * WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU - * General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, see <http://www.gnu.org/licenses/>. - */ - -#ifndef __META_REGION_UTILS_H__ -#define __META_REGION_UTILS_H__ - -#include <cairo.h> -#include <glib.h> - -#include "backends/meta-backend-types.h" -#include "clutter/clutter.h" -#include "core/boxes-private.h" - -/** - * MetaRegionIterator: - * @region: region being iterated - * @rectangle: current rectangle - * @line_start: whether the current rectangle starts a horizontal band - * @line_end: whether the current rectangle ends a horizontal band - * - * cairo_region_t is a yx banded region; sometimes its useful to iterate through - * such a region treating the start and end of each horizontal band in a distinct - * fashion. - * - * Usage: - * - * MetaRegionIterator iter; - * for (meta_region_iterator_init (&iter, region); - * !meta_region_iterator_at_end (&iter); - * meta_region_iterator_next (&iter)) - * { - * [ Use iter.rectangle, iter.line_start, iter.line_end ] - * } - */ -typedef struct _MetaRegionIterator MetaRegionIterator; - -struct _MetaRegionIterator { - cairo_region_t *region; - cairo_rectangle_int_t rectangle; - gboolean line_start; - gboolean line_end; - int i; - - /*< private >*/ - int n_rectangles; - cairo_rectangle_int_t next_rectangle; -}; - -typedef struct _MetaRegionBuilder MetaRegionBuilder; - -#define META_REGION_BUILDER_MAX_LEVELS 16 -struct _MetaRegionBuilder { - /* To merge regions in binary tree order, we need to keep track of - * the regions that we've already merged together at different - * levels of the tree. We fill in an array in the pattern: - * - * |a | - * |b |a | - * |c | |ab | - * |d |c |ab | - * |e | | |abcd| - */ - cairo_region_t *levels[META_REGION_BUILDER_MAX_LEVELS]; - int n_levels; -}; - -void meta_region_builder_init (MetaRegionBuilder *builder); -void meta_region_builder_add_rectangle (MetaRegionBuilder *builder, - int x, - int y, - int width, - int height); -cairo_region_t * meta_region_builder_finish (MetaRegionBuilder *builder); - -void meta_region_iterator_init (MetaRegionIterator *iter, - cairo_region_t *region); -gboolean meta_region_iterator_at_end (MetaRegionIterator *iter); -void meta_region_iterator_next (MetaRegionIterator *iter); - -cairo_region_t * meta_region_scale (cairo_region_t *region, - int scale); - -cairo_region_t * meta_region_scale_double (cairo_region_t *region, - double scale, - MetaRoundingStrategy rounding_strategy); - -cairo_region_t * meta_make_border_region (cairo_region_t *region, - int x_amount, - int y_amount, - gboolean flip); - -cairo_region_t * meta_region_transform (const cairo_region_t *region, - MetaMonitorTransform transform, - int width, - int height); - -cairo_region_t * meta_region_crop_and_scale (cairo_region_t *region, - graphene_rect_t *src_rect, - int dst_width, - int dst_height); - -#endif /* __META_REGION_UTILS_H__ */ |