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layout-output example: handle empty config

This commit is contained in:
Tony Crisci 2017-08-16 15:00:15 -04:00 committed by Drew DeVault
parent 44181b57ac
commit 2e9e237f9d
3 changed files with 33 additions and 3 deletions
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31
examples/output-layout.c
View File

@ -31,6 +31,7 @@ struct sample_state {
float x_offs, y_offs;
float x_vel, y_vel;
struct wlr_output *main_output;
struct wl_list outputs;
};
struct output_config {
@ -109,6 +110,7 @@ static void handle_output_frame(struct output_state *output, struct timespec *ts
static void handle_output_add(struct output_state *output) {
struct sample_state *sample = output->compositor->data;
bool found = false;
struct output_config *conf;
wl_list_for_each(conf, &sample->config, link) {
if (strcmp(conf->name, output->output->name) == 0) {
@ -120,13 +122,35 @@ static void handle_output_add(struct output_state *output) {
sample->main_output = output->output;
sample->x_offs = conf->x + 20;
sample->y_offs = conf->y + 20;
sample->x_vel = 500;
sample->y_vel = 500;
}
wlr_log(L_DEBUG, "Adding output to layout: %s", output->output->name);
found = true;
break;
}
}
// if it's not in the config, just place it next to the rightmost output
if (!found) {
int x = 0;
struct output_state *_output;
wl_list_for_each(_output, &sample->outputs, link) {
struct wlr_output_layout_output *layout_output =
wlr_output_layout_get(sample->layout, _output->output);
if (layout_output && layout_output->output) {
x += layout_output->x + _output->output->width;
}
}
wlr_output_layout_add(sample->layout, output->output, x, 0);
if (wl_list_empty(&sample->config) && !sample->main_output) {
sample->main_output = output->output;
sample->x_offs = x + 20;
sample->y_offs = 20;
}
}
wl_list_insert(&sample->outputs, &output->link);
}
static void update_velocities(struct compositor_state *state,
@ -245,9 +269,12 @@ static void parse_args(int argc, char *argv[], struct wl_list *config) {
int main(int argc, char *argv[]) {
struct sample_state state = {0};
state.x_vel = 500;
state.y_vel = 500;
state.layout = wlr_output_layout_init();
wl_list_init(&state.config);
wl_list_init(&state.outputs);
parse_args(argc, argv, &state.config);
struct compositor_state compositor = { 0 };

3
include/wlr/types/wlr_output_layout.h
View File

@ -18,6 +18,9 @@ struct wlr_output_layout *wlr_output_layout_init();
void wlr_output_layout_destroy(struct wlr_output_layout *layout);
struct wlr_output_layout_output *wlr_output_layout_get(
struct wlr_output_layout *layout, struct wlr_output *reference);
struct wlr_output *wlr_output_layout_output_at(struct wlr_output_layout *layout,
double x, double y);

2
types/wlr_output_layout.c
View File

@ -33,7 +33,7 @@ void wlr_output_layout_add(struct wlr_output_layout *layout,
wl_list_insert(&layout->outputs, &layout_output->link);
}
static struct wlr_output_layout_output *wlr_output_layout_get(
struct wlr_output_layout_output *wlr_output_layout_get(
struct wlr_output_layout *layout, struct wlr_output *reference) {
struct wlr_output_layout_output *ret = NULL;
struct wlr_output_layout_output *_output;