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common/box: add box_fit_within()

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Factor out common math from ssd's get_scale_box() for use elsewhere.
This commit is contained in:
John Lindgren 2024-10-05 09:45:48 -04:00
parent 465aac5514
commit 22e50aa4e2
3 changed files with 46 additions and 28 deletions
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27
src/ssd/ssd-part.c
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@ -2,6 +2,7 @@
#include <assert.h>
#include "buffer.h"
#include "common/box.h"
#include "common/list.h"
#include "common/mem.h"
#include "labwc.h"
@ -80,29 +81,11 @@ add_scene_buffer(struct wl_list *list, enum ssd_part_type type,
}
static struct wlr_box
get_scale_box(struct lab_data_buffer *buffer, double container_width,
double container_height)
get_scale_box(struct lab_data_buffer *buffer, int container_width,
int container_height)
{
struct wlr_box icon_geo = {
.width = buffer->logical_width,
.height = buffer->logical_height
};
/* Scale down buffer if required */
if (icon_geo.width && icon_geo.height) {
double scale = MIN(container_width / icon_geo.width,
container_height / icon_geo.height);
if (scale < 1.0f) {
icon_geo.width = (double)icon_geo.width * scale;
icon_geo.height = (double)icon_geo.height * scale;
}
}
/* Center buffer on both axis */
icon_geo.x = (container_width - icon_geo.width) / 2;
icon_geo.y = (container_height - icon_geo.height) / 2;
return icon_geo;
return box_fit_within(buffer->logical_width, buffer->logical_height,
container_width, container_height);
}
void