rootston: rotate cursor coordinates

This commit is contained in:
emersion 2017-10-04 21:05:00 +02:00
parent f9dbc1841d
commit dd07618727
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@ -2,6 +2,7 @@
#include <assert.h>
#include <time.h>
#include <stdlib.h>
#include <math.h>
#include <wlr/types/wlr_box.h>
#include <wlr/types/wlr_compositor.h>
#include <wlr/types/wlr_cursor.h>
@ -105,9 +106,18 @@ struct roots_view *view_at(struct roots_desktop *desktop, double lx, double ly,
struct wlr_box box;
view_get_input_bounds(view, &box);
box.x += view->x;
box.y += view->y;
if (wlr_box_contains_point(&box, lx, ly)) {
if (view->rotation != 0.0) {
// Coordinates relative to the center of the view
double ox = view_sx - (double)box.width/2,
oy = view_sy - (double)box.height/2;
// Rotated coordinates
double rx = cos(view->rotation)*ox - sin(view->rotation)*oy,
ry = cos(view->rotation)*oy + sin(view->rotation)*ox;
view_sx = (double)box.width/2 + rx;
view_sy = (double)box.height/2 + ry;
}
if (wlr_box_contains_point(&box, view_sx, view_sy)) {
*sx = view_sx;
*sy = view_sy;
*surface = view->wlr_surface;