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authorTony Crisci <tony@dubstepdish.com>2017-08-29 12:32:17 -0400
committerTony Crisci <tony@dubstepdish.com>2017-08-29 12:36:39 -0400
commitb6031d106525706db6eef03d2a500259357ecb69 (patch)
tree1c11846c5ee27a62ab717cf9fb9c0be05af7e1a5
parent9b65d0b3f0030bf2103cd7d65448f727c62de468 (diff)
refactor wlr_output_layout_closest_point
-rw-r--r--include/wlr/types/wlr_output_layout.h7
-rw-r--r--types/wlr_cursor.c10
-rw-r--r--types/wlr_output_layout.c49
3 files changed, 24 insertions, 42 deletions
diff --git a/include/wlr/types/wlr_output_layout.h b/include/wlr/types/wlr_output_layout.h
index 794fc491..b1253eb1 100644
--- a/include/wlr/types/wlr_output_layout.h
+++ b/include/wlr/types/wlr_output_layout.h
@@ -53,11 +53,10 @@ bool wlr_output_layout_intersects(struct wlr_output_layout *layout,
struct wlr_output *reference, int x1, int y1, int x2, int y2);
/**
- * Get the closest boundary point of this layout from the given point from the
- * reference output. If reference is NULL, gets the closest boundary point from
- * the entire layout.
+ * Get the closest point on this layout from the given point from the reference
+ * output. If reference is NULL, gets the closest point from the entire layout.
*/
-void wlr_output_layout_closest_boundary(struct wlr_output_layout *layout,
+void wlr_output_layout_closest_point(struct wlr_output_layout *layout,
struct wlr_output *reference, double x, double y, double *dest_x,
double *dest_y);
diff --git a/types/wlr_cursor.c b/types/wlr_cursor.c
index bc546b15..f9be0a7a 100644
--- a/types/wlr_cursor.c
+++ b/types/wlr_cursor.c
@@ -230,11 +230,11 @@ void wlr_cursor_move(struct wlr_cursor *cur, struct wlr_input_device *dev,
}
} else {
if (!wlr_output_layout_contains_point(cur->state->layout, NULL, x, y)) {
- double boundary_x, boundary_y;
- wlr_output_layout_closest_boundary(cur->state->layout, NULL, x, y,
- &boundary_x, &boundary_y);
- x = boundary_x;
- y = boundary_y;
+ double layout_x, layout_y;
+ wlr_output_layout_closest_point(cur->state->layout, NULL, x, y,
+ &layout_x, &layout_y);
+ x = layout_x;
+ y = layout_y;
}
}
diff --git a/types/wlr_output_layout.c b/types/wlr_output_layout.c
index ba2c158a..7c98837d 100644
--- a/types/wlr_output_layout.c
+++ b/types/wlr_output_layout.c
@@ -3,6 +3,7 @@
#include <wlr/types/wlr_output_layout.h>
#include <wlr/types/wlr_box.h>
#include <limits.h>
+#include <float.h>
#include <stdlib.h>
#include <assert.h>
@@ -157,47 +158,33 @@ void wlr_output_layout_output_coords(struct wlr_output_layout *layout,
}
}
-static double get_distance(double x1, double y1, double x2, double y2) {
- double distance;
- distance = sqrt((x1 - x2) * (x1 - x2) + (y1 - y2) * (y1 - y2));
- return distance;
+static struct wlr_box *wlr_output_layout_output_get_box(
+ struct wlr_output_layout_output *l_output) {
+ l_output->state->_box->x = l_output->x;
+ l_output->state->_box->y = l_output->y;
+ wlr_output_effective_resolution(l_output->output,
+ &l_output->state->_box->width, &l_output->state->_box->height);
+ return l_output->state->_box;
}
-void wlr_output_layout_closest_boundary(struct wlr_output_layout *layout,
+void wlr_output_layout_closest_point(struct wlr_output_layout *layout,
struct wlr_output *reference, double x, double y, double *dest_x,
double *dest_y) {
- double min_x = INT_MAX, min_y = INT_MAX, min_distance = INT_MAX;
+ double min_x = DBL_MAX, min_y = DBL_MAX, min_distance = DBL_MAX;
struct wlr_output_layout_output *l_output;
wl_list_for_each(l_output, &layout->outputs, link) {
if (reference != NULL && reference != l_output->output) {
continue;
}
- int width, height;
double output_x, output_y, output_distance;
- wlr_output_effective_resolution(l_output->output, &width, &height);
-
- // find the closest x point
- // TODO use wlr_box_closest_boundary
- if (x < l_output->x) {
- output_x = l_output->x;
- } else if (x > l_output->x + width) {
- output_x = l_output->x + width;
- } else {
- output_x = x;
- }
+ struct wlr_box *box = wlr_output_layout_output_get_box(l_output);
+ wlr_box_closest_point(box, x, y, &output_x, &output_y);
- // find closest y point
- if (y < l_output->y) {
- output_y = l_output->y;
- } else if (y > l_output->y + height) {
- output_y = l_output->y + height;
- } else {
- output_y = y;
- }
+ // calculate squared distance suitable for comparison
+ output_distance =
+ (x - output_x) * (x - output_x) + (y - output_y) * (y - output_y);
- // calculate distance
- output_distance = get_distance(output_x, output_y, x, y);
if (output_distance < min_distance) {
min_x = output_x;
min_y = output_y;
@@ -215,11 +202,7 @@ struct wlr_box *wlr_output_layout_get_box(
if (reference) {
// output extents
l_output= wlr_output_layout_get(layout, reference);
- l_output->state->_box->x = l_output->x;
- l_output->state->_box->y = l_output->y;
- wlr_output_effective_resolution(reference,
- &l_output->state->_box->width, &l_output->state->_box->height);
- return l_output->state->_box;
+ return wlr_output_layout_output_get_box(l_output);
} else {
// layout extents
int min_x = INT_MAX, min_y = INT_MAX;