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common/graphic-helpers: Add multi_rect

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Consolatis 2022-08-20 00:01:06 +02:00 • committed by Johan Malm
parent b5a0d74888
commit 8c8583ef94
3 changed files with 95 additions and 0 deletions
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60
src/common/graphic-helpers.c Normal file
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@ -0,0 +1,60 @@
// SPDX-License-Identifier: GPL-2.0-only
#include <assert.h>
#include <stdlib.h>
#include <wlr/types/wlr_scene.h>
#include "common/graphic-helpers.h"
static void
multi_rect_destroy_notify(struct wl_listener *listener, void *data)
{
struct multi_rect *rect = wl_container_of(listener, rect, destroy);
free(rect);
}
struct multi_rect *
multi_rect_create(struct wlr_scene_tree *parent, float *colors[3], int line_width)
{
struct multi_rect *rect = calloc(1, sizeof(*rect));
rect->line_width = line_width;
rect->tree = wlr_scene_tree_create(parent);
rect->destroy.notify = multi_rect_destroy_notify;
wl_signal_add(&rect->tree->node.events.destroy, &rect->destroy);
for (size_t i = 0; i < 3; i++) {
rect->top[i] = wlr_scene_rect_create(rect->tree, 0, 0, colors[i]);
rect->right[i] = wlr_scene_rect_create(rect->tree, 0, 0, colors[i]);
rect->bottom[i] = wlr_scene_rect_create(rect->tree, 0, 0, colors[i]);
rect->left[i] = wlr_scene_rect_create(rect->tree, 0, 0, colors[i]);
wlr_scene_node_set_position(&rect->top[i]->node,
i * line_width, i * line_width);
wlr_scene_node_set_position(&rect->left[i]->node,
i * line_width, i * line_width);
}
return rect;
}
void
multi_rect_set_size(struct multi_rect *rect, int width, int height)
{
assert(rect);
int line_width = rect->line_width;
for (size_t i = 0; i < 3; i++) {
/* Reposition, top and left don't ever change */
wlr_scene_node_set_position(&rect->right[i]->node,
width - (i + 1) * line_width, i * line_width);
wlr_scene_node_set_position(&rect->bottom[i]->node,
i * line_width, height - (i + 1) * line_width);
/* Update sizes */
wlr_scene_rect_set_size(rect->top[i],
width - i * line_width * 2, line_width);
wlr_scene_rect_set_size(rect->bottom[i],
width - i * line_width * 2, line_width);
wlr_scene_rect_set_size(rect->left[i],
line_width, height - i * line_width * 2);
wlr_scene_rect_set_size(rect->right[i],
line_width, height - i * line_width * 2);
}
}

1
src/common/meson.build
View file

@ -4,6 +4,7 @@ labwc_sources += files(
'fd_util.c',
'font.c',
'grab-file.c',
'graphic-helpers.c',
'nodename.c',
'scaled_font_buffer.c',
'scaled_scene_buffer.c',