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handle cursor to output edge cases

This commit is contained in:
Tony Crisci 2017-08-24 10:11:57 -04:00
parent 431e1ddeca
commit dd68f680e4
3 changed files with 74 additions and 18 deletions
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6
include/wlr/types/wlr_output_layout.h
View File

@ -46,4 +46,10 @@ bool wlr_output_layout_contains_point(struct wlr_output_layout *layout,
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.
*/
void wlr_output_layout_closest_boundary(struct wlr_output_layout *layout,
int x, int y, int *dest_x, int *dest_y);
#endif

40
types/wlr_cursor.c
View File

@ -73,7 +73,7 @@ void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y) {
// TODO handle no layout
assert(cur->state->layout);
// TODO handle layout boundaries
double new_x = cur->x + delta_x;
double new_y = cur->y + delta_y;
int hotspot_x = 0;
@ -85,24 +85,28 @@ void wlr_cursor_move(struct wlr_cursor *cur, double delta_x, double delta_y) {
hotspot_y = image->hotspot_y;
}
if (wlr_output_layout_output_at(cur->state->layout, new_x, new_y)) {
//struct wlr_output *output;
//output = wlr_output_layout_output_at(cur->state->layout, new_x, new_y);
struct wlr_output_layout_output *l_output;
wl_list_for_each(l_output, &cur->state->layout->outputs, link) {
int output_x = new_x;
int output_y = new_y;
// TODO fix double to int rounding issues
wlr_output_layout_output_coords(cur->state->layout,
l_output->output, &output_x, &output_y);
wlr_output_move_cursor(l_output->output, output_x - hotspot_x,
output_y - hotspot_y);
}
cur->x = new_x;
cur->y = new_y;
if (!wlr_output_layout_output_at(cur->state->layout, new_x, new_y)) {
int closest_x, closest_y;
wlr_output_layout_closest_boundary(cur->state->layout, new_x, new_y,
&closest_x, &closest_y);
new_x = closest_x;
new_y = closest_y;
}
struct wlr_output_layout_output *l_output;
wl_list_for_each(l_output, &cur->state->layout->outputs, link) {
int output_x = new_x;
int output_y = new_y;
// TODO fix double to int rounding issues
wlr_output_layout_output_coords(cur->state->layout,
l_output->output, &output_x, &output_y);
wlr_output_move_cursor(l_output->output, output_x - hotspot_x,
output_y - hotspot_y);
}
cur->x = new_x;
cur->y = new_y;
}
static void handle_pointer_motion(struct wl_listener *listener, void *data) {

46
types/wlr_output_layout.c
View File

@ -1,6 +1,7 @@
#include <wlr/util/log.h>
#include <wlr/types/wlr_output.h>
#include <wlr/types/wlr_output_layout.h>
#include <limits.h>
#include <stdlib.h>
#include <assert.h>
@ -126,3 +127,48 @@ 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;
}
void wlr_output_layout_closest_boundary(struct wlr_output_layout *layout,
int x, int y, int *dest_x, int *dest_y) {
int min_x = INT_MAX, min_y = INT_MAX, min_distance = INT_MAX;
struct wlr_output_layout_output *l_output;
wl_list_for_each(l_output, &layout->outputs, link) {
int width, height, output_x, output_y, output_distance;
wlr_output_effective_resolution(l_output->output, &width, &height);
// find the closest x point
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;
}
// 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 distance
output_distance = get_distance(output_x, output_y, x, y);
if (output_distance < min_distance) {
min_x = output_x;
min_y = output_y;
min_distance = output_distance;
}
}
*dest_x = min_x;
*dest_y = min_y;
}