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implement output layout auto configuration

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This commit is contained in:
Tony Crisci 2017-08-30 10:39:22 -04:00
parent e91c91d455
commit 40bd6bcc43
6 changed files with 156 additions and 89 deletions
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113
types/wlr_output_layout.c
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@ -12,7 +12,10 @@ struct wlr_output_layout_state {
};
struct wlr_output_layout_output_state {
struct wlr_output_layout *layout;
struct wlr_box *_box;
bool auto_configured;
struct wl_listener resolution;
};
struct wlr_output_layout *wlr_output_layout_init() {
@ -47,16 +50,93 @@ void wlr_output_layout_destroy(struct wlr_output_layout *layout) {
free(layout);
}
void wlr_output_layout_add(struct wlr_output_layout *layout,
struct wlr_output *output, int x, int y) {
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;
int width, height;
wlr_output_effective_resolution(l_output->output, &width, &height);
l_output->state->_box->width = width;
l_output->state->_box->height = height;
return l_output->state->_box;
}
/**
* This must be called whenever the layout changes to reconfigure the auto
* configured outputs.
*
* Auto configured outputs are placed to the right of the north east corner of
* the rightmost output in the layout in a horizontal line.
*/
static void wlr_output_layout_reconfigure(struct wlr_output_layout *layout) {
int max_x = INT_MIN;
int max_x_y = INT_MIN; // y value for the max_x output
// find the rightmost x coordinate occupied by a manually configured output
// in the layout
struct wlr_output_layout_output *l_output;
wl_list_for_each(l_output, &layout->outputs, link) {
if (l_output->state->auto_configured) {
continue;
}
struct wlr_box *box = wlr_output_layout_output_get_box(l_output);
if (box->x + box->width > max_x) {
max_x = box->x + box->width;
max_x_y = box->y;
}
}
if (max_x == INT_MIN) {
// there are no manually configured outputs
max_x = 0;
max_x_y = 0;
}
wl_list_for_each(l_output, &layout->outputs, link) {
if (!l_output->state->auto_configured) {
continue;
}
struct wlr_box *box = wlr_output_layout_output_get_box(l_output);
l_output->x = max_x;
l_output->y = max_x_y;
max_x += box->width;
}
}
static void handle_output_resolution(struct wl_listener *listener, void *data) {
struct wlr_output_layout_output_state *state =
wl_container_of(listener, state, resolution);
wlr_output_layout_reconfigure(state->layout);
}
static struct wlr_output_layout_output *wlr_output_layout_output_create(
struct wlr_output_layout *layout, struct wlr_output *output) {
struct wlr_output_layout_output *l_output;
l_output= calloc(1, sizeof(struct wlr_output_layout_output));
l_output->state = calloc(1, sizeof(struct wlr_output_layout_output_state));
l_output->state->_box = calloc(1, sizeof(struct wlr_box));
l_output->state->layout = layout;
l_output->output = output;
wl_list_insert(&layout->outputs, &l_output->link);
wl_signal_add(&output->events.resolution, &l_output->state->resolution);
l_output->state->resolution.notify = handle_output_resolution;
return l_output;
}
void wlr_output_layout_add(struct wlr_output_layout *layout,
struct wlr_output *output, int x, int y) {
struct wlr_output_layout_output *l_output =
wlr_output_layout_get(layout, output);
if (!l_output) {
l_output = wlr_output_layout_output_create(layout, output);
}
l_output->x = x;
l_output->y = y;
wl_list_insert(&layout->outputs, &l_output->link);
l_output->state->auto_configured = false;
wlr_output_layout_reconfigure(layout);
}
struct wlr_output_layout_output *wlr_output_layout_get(
@ -130,6 +210,10 @@ void wlr_output_layout_move(struct wlr_output_layout *layout,
if (l_output) {
l_output->x = x;
l_output->y = y;
l_output->state->auto_configured = false;
wlr_output_layout_reconfigure(layout);
} else {
wlr_log(L_ERROR, "output not found in this layout: %s", output->name);
}
}
@ -139,6 +223,7 @@ void wlr_output_layout_remove(struct wlr_output_layout *layout,
l_output= wlr_output_layout_get(layout, output);
if (l_output) {
wlr_output_layout_output_destroy(l_output);
wlr_output_layout_reconfigure(layout);
}
}
@ -158,15 +243,6 @@ void wlr_output_layout_output_coords(struct wlr_output_layout *layout,
}
}
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_point(struct wlr_output_layout *layout,
struct wlr_output *reference, double x, double y, double *dest_x,
double *dest_y) {
@ -234,3 +310,16 @@ struct wlr_box *wlr_output_layout_get_box(
// not reached
}
void wlr_output_layout_add_auto(struct wlr_output_layout *layout,
struct wlr_output *output) {
struct wlr_output_layout_output *l_output =
wlr_output_layout_get(layout, output);
if (!l_output) {
l_output = wlr_output_layout_output_create(layout, output);
}
l_output->state->auto_configured = true;
wlr_output_layout_reconfigure(layout);
}