xcursor: trigger theme reload in pointer-enter event

Previously, we triggered a theme reload on output changes. This is
completely wrong. We may get a new output with a scale different from
the output the pointer is actually on.

Now, we store the current scale along with the theme. We then trigger
a call to reload the xcursor theme *every* time the pointer enters a
surface. When it does, we use the current scale factor of the terminal
that owns that surface.

If the terminal covers multiple outputs, with different scale factors,
we'll use the largest scale factor. This may not be 100% correct. But
to fix that, we'd need to track which regions of a surface are mapped
on which outputs. Too complicated I say.
This commit is contained in:
Daniel Eklöf 2020-07-08 19:52:17 +02:00
parent 5539af2597
commit d377221e24
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
3 changed files with 17 additions and 9 deletions

View file

@ -846,6 +846,9 @@ wl_pointer_enter(void *data, struct wl_pointer *wl_pointer,
LOG_DBG("pointer-enter: pointer=%p, serial=%u, surface = %p, new-moused = %p",
wl_pointer, serial, surface, term);
/* Scale may have changed */
wayl_reload_xcursor_theme(seat, term->scale);
seat->mouse_focus = term;
int x = wl_fixed_to_int(surface_x) * term->scale;

View file

@ -30,8 +30,6 @@
#include "selection.h"
#include "util.h"
static bool wayl_reload_cursor_theme(struct seat *seat, struct terminal *term);
static void
csd_instantiate(struct wl_window *win)
{
@ -212,9 +210,6 @@ update_term_for_output_change(struct terminal *term)
render_resize(term, term->width / term->scale, term->height / term->scale);
term_font_dpi_changed(term);
term_font_subpixel_changed(term);
tll_foreach(term->wl->seats, it)
wayl_reload_cursor_theme(&it->item, term);
}
static void
@ -1197,13 +1192,19 @@ wayl_win_destroy(struct wl_window *win)
free(win);
}
static bool
wayl_reload_cursor_theme(struct seat *seat, struct terminal *term)
bool
wayl_reload_xcursor_theme(struct seat *seat, int new_scale)
{
if (seat->pointer.size == 0)
return true;
if (seat->pointer.theme != NULL && seat->pointer.scale == new_scale) {
/* We already have a theme loaded, and the scale hasn't changed */
return true;
}
if (seat->pointer.theme != NULL) {
assert(seat->pointer.scale != new_scale);
wl_cursor_theme_destroy(seat->pointer.theme);
seat->pointer.theme = NULL;
seat->pointer.cursor = NULL;
@ -1213,14 +1214,15 @@ wayl_reload_cursor_theme(struct seat *seat, struct terminal *term)
seat->pointer.theme_name, seat->pointer.size);
seat->pointer.theme = wl_cursor_theme_load(
seat->pointer.theme_name, seat->pointer.size * term->scale, seat->wayl->shm);
seat->pointer.theme_name, seat->pointer.size * new_scale, seat->wayl->shm);
if (seat->pointer.theme == NULL) {
LOG_ERR("failed to load cursor theme");
return false;
}
return render_xcursor_set(seat, term);
seat->pointer.scale = new_scale;
return true;
}
void

View file

@ -146,6 +146,7 @@ struct seat {
struct wl_cursor_theme *theme;
struct wl_cursor *cursor;
int size;
int scale;
char *theme_name;
const char *xcursor;
@ -329,3 +330,5 @@ void wayl_roundtrip(struct wayland *wayl);
struct wl_window *wayl_win_init(struct terminal *term);
void wayl_win_destroy(struct wl_window *win);
bool wayl_reload_xcursor_theme(struct seat *seat, int new_scale);