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Merge pull request #419 from emersion/fix-rotate-popups

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Fix popups position for rotated views
This commit is contained in:
Drew DeVault 2017-11-15 08:10:03 -05:00 committed by GitHub
commit 0fe51b66e4
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GPG key ID: 4AEE18F83AFDEB23
3 changed files with 69 additions and 28 deletions
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6
include/wlr/types/wlr_xdg_shell_v6.h
View file

@ -209,6 +209,12 @@ void wlr_xdg_toplevel_v6_set_resizing(struct wlr_xdg_surface_v6 *surface,
*/
void wlr_xdg_toplevel_v6_send_close(struct wlr_xdg_surface_v6 *surface);
/**
* Compute the popup position in surface-local coordinates.
*/
void wlr_xdg_surface_v6_popup_get_position(struct wlr_xdg_surface_v6 *surface,
double *popup_sx, double *popup_sy);
/**
* Find a popup within this surface at the surface-local coordinates. Returns
* the popup and coordinates in the topmost surface coordinate system or NULL if

81
rootston/output.c
View file

@ -17,13 +17,30 @@ static inline int64_t timespec_to_msec(const struct timespec *a) {
return (int64_t)a->tv_sec * 1000 + a->tv_nsec / 1000000;
}
/**
* Rotate a child's position relative to a parent. The parent size is (pw, ph),
* the child position is (*sx, *sy) and its size is (sw, sh).
*/
static void rotate_child_position(double *sx, double *sy, double sw, double sh,
double pw, double ph, float rotation) {
if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface
double ox = *sx - pw/2 + sw/2,
oy = *sy - ph/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
*sx = rx + pw/2 - sw/2;
*sy = ry + ph/2 - sh/2;
}
}
static void render_surface(struct wlr_surface *surface,
struct roots_desktop *desktop, struct wlr_output *wlr_output,
struct timespec *when, double lx, double ly, float rotation) {
if (surface->texture->valid) {
double surface_scale = surface->current->scale;
double width = (double)surface->current->buffer_width / surface_scale;
double height = (double)surface->current->buffer_height / surface_scale;
int width = surface->current->width;
int height = surface->current->height;
int render_width = width * wlr_output->scale;
int render_height = height * wlr_output->scale;
double ox = lx, oy = ly;
@ -73,16 +90,7 @@ static void render_surface(struct wlr_surface *surface,
double sy = state->subsurface_position.y;
double sw = state->buffer_width / state->scale;
double sh = state->buffer_height / state->scale;
if (rotation != 0.0) {
// Coordinates relative to the center of the subsurface
double ox = sx - width/2 + sw/2,
oy = sy - height/2 + sh/2;
// Rotated coordinates
double rx = cos(-rotation)*ox - sin(-rotation)*oy,
ry = cos(-rotation)*oy + sin(-rotation)*ox;
sx = rx + width/2 - sw/2;
sy = ry + height/2 - sh/2;
}
rotate_child_position(&sx, &sy, sw, sh, width, height, rotation);
render_surface(subsurface->surface, desktop, wlr_output, when,
lx + sx,
@ -95,36 +103,53 @@ static void render_surface(struct wlr_surface *surface,
static void render_xdg_v6_popups(struct wlr_xdg_surface_v6 *surface,
struct roots_desktop *desktop, struct wlr_output *wlr_output,
struct timespec *when, double base_x, double base_y, float rotation) {
// TODO: make sure this works with view rotation
double width = surface->surface->current->width;
double height = surface->surface->current->height;
struct wlr_xdg_surface_v6 *popup;
wl_list_for_each(popup, &surface->popups, popup_link) {
if (!popup->configured) {
continue;
}
double popup_x = base_x + surface->geometry->x +
popup->popup_state->geometry.x - popup->geometry->x;
double popup_y = base_y + surface->geometry->y +
popup->popup_state->geometry.y - popup->geometry->y;
render_surface(popup->surface, desktop, wlr_output, when, popup_x,
popup_y, rotation);
render_xdg_v6_popups(popup, desktop, wlr_output, when, popup_x, popup_y,
rotation);
double popup_width = popup->surface->current->width;
double popup_height = popup->surface->current->height;
double popup_sx, popup_sy;
wlr_xdg_surface_v6_popup_get_position(popup, &popup_sx, &popup_sy);
rotate_child_position(&popup_sx, &popup_sy, popup_width, popup_height,
width, height, rotation);
render_surface(popup->surface, desktop, wlr_output, when,
base_x + popup_sx, base_y + popup_sy, rotation);
render_xdg_v6_popups(popup, desktop, wlr_output, when,
base_x + popup_sx, base_y + popup_sy, rotation);
}
}
static void render_wl_shell_surface(struct wlr_wl_shell_surface *surface, struct roots_desktop *desktop,
struct wlr_output *wlr_output, struct timespec *when, double lx,
double ly, float rotation, bool is_child) {
static void render_wl_shell_surface(struct wlr_wl_shell_surface *surface,
struct roots_desktop *desktop, struct wlr_output *wlr_output,
struct timespec *when, double lx, double ly, float rotation,
bool is_child) {
if (is_child || surface->state != WLR_WL_SHELL_SURFACE_STATE_POPUP) {
render_surface(surface->surface, desktop, wlr_output, when,
lx, ly, rotation);
double width = surface->surface->current->width;
double height = surface->surface->current->height;
struct wlr_wl_shell_surface *popup;
wl_list_for_each(popup, &surface->popups, popup_link) {
double popup_width = popup->surface->current->width;
double popup_height = popup->surface->current->height;
double popup_x = popup->transient_state->x;
double popup_y = popup->transient_state->y;
rotate_child_position(&popup_x, &popup_y, popup_width, popup_height,
width, height, rotation);
render_wl_shell_surface(popup, desktop, wlr_output, when,
lx + popup->transient_state->x,
ly + popup->transient_state->y,
rotation, true);
lx + popup_x, ly + popup_y, rotation, true);
}
}
}

10
types/wlr_xdg_shell_v6.c
View file

@ -1350,6 +1350,16 @@ void wlr_xdg_toplevel_v6_send_close(struct wlr_xdg_surface_v6 *surface) {
zxdg_toplevel_v6_send_close(surface->toplevel_state->resource);
}
void wlr_xdg_surface_v6_popup_get_position(struct wlr_xdg_surface_v6 *surface,
double *popup_sx, double *popup_sy) {
assert(surface->role == WLR_XDG_SURFACE_V6_ROLE_POPUP);
struct wlr_xdg_surface_v6 *parent = surface->popup_state->parent;
*popup_sx = parent->geometry->x + surface->popup_state->geometry.x -
surface->geometry->x;
*popup_sy = parent->geometry->y + surface->popup_state->geometry.y -
surface->geometry->y;
}
struct wlr_xdg_surface_v6 *wlr_xdg_surface_v6_popup_at(
struct wlr_xdg_surface_v6 *surface, double sx, double sy,
double *popup_sx, double *popup_sy) {