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implement output layout auto configuration

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master
Tony Crisci 7 years ago
parent e91c91d455
commit 40bd6bcc43
6 changed files with 157 additions and 90 deletions
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49
examples/config.c
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@ -255,49 +255,14 @@ void example_config_destroy(struct example_config *config) {
free(config);
}
struct wlr_output_layout *configure_layout(struct example_config *config,
struct wl_list *outputs) {
struct wlr_output_layout *layout = wlr_output_layout_init();
int max_x = INT_MIN;
int max_x_y = INT_MIN; // y value for the max_x output
// first add all the configured outputs
struct output_state *output;
wl_list_for_each(output, outputs, link) {
struct output_config *conf;
wl_list_for_each(conf, &config->outputs, link) {
if (strcmp(conf->name, output->output->name) == 0) {
wlr_output_layout_add(layout, output->output,
conf->x, conf->y);
wlr_output_transform(output->output, conf->transform);
int width, height;
wlr_output_effective_resolution(output->output, &width,
&height);
if (conf->x + width > max_x) {
max_x = conf->x + width;
max_x_y = conf->y;
}
break;
}
}
}
if (max_x == INT_MIN) {
// couldn't find a configured output
max_x = 0;
max_x_y = 0;
}
// now add all the other configured outputs in a sensible position
wl_list_for_each(output, outputs, link) {
if (wlr_output_layout_get(layout, output->output)) {
continue;
struct output_config *example_config_get_output(struct example_config *config,
struct wlr_output *output) {
struct output_config *o_config;
wl_list_for_each(o_config, &config->outputs, link) {
if (strcmp(o_config->name, output->name) == 0) {
return o_config;
}
wlr_output_layout_add(layout, output->output, max_x, max_x_y);
int width, height;
wlr_output_effective_resolution(output->output, &width, &height);
max_x += width;
}
return layout;
return NULL;
}

9
examples/config.h
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@ -34,6 +34,11 @@ struct example_config *parse_args(int argc, char *argv[]);
void example_config_destroy(struct example_config *config);
struct wlr_output_layout *configure_layout(struct example_config *config,
struct wl_list *outputs);
/**
* Get configuration for the output. If the output is not configured, returns
* NULL.
*/
struct output_config *example_config_get_output(struct example_config *config,
struct wlr_output *output);
#endif

29
examples/output-layout.c
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@ -129,20 +129,22 @@ static void set_main_output(struct sample_state *sample,
sample->y_offs = l_output->y + 200;
}
static void handle_output_resolution(struct compositor_state *state, struct output_state *output) {
struct sample_state *sample = state->data;
wlr_output_layout_destroy(sample->layout);
sample->layout = configure_layout(sample->config, &sample->outputs);
set_main_output(sample, output->output);
}
static void handle_output_add(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wl_list_insert(&sample->outputs, &ostate->link);
struct output_config *o_config =
example_config_get_output(sample->config, ostate->output);
if (o_config) {
wlr_output_transform(ostate->output, o_config->transform);
wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
o_config->y);
} else {
wlr_output_layout_add_auto(sample->layout, ostate->output);
}
static void handle_output_add(struct output_state *output) {
struct sample_state *sample = output->compositor->data;
wl_list_insert(&sample->outputs, &output->link);
wlr_output_layout_destroy(sample->layout);
sample->layout = configure_layout(sample->config, &sample->outputs);
set_main_output(sample, output->output);
set_main_output(sample, ostate->output);
}
static void update_velocities(struct compositor_state *state,
@ -190,7 +192,6 @@ int main(int argc, char *argv[]) {
compositor.data = &state;
compositor.output_add_cb = handle_output_add;
compositor.output_frame_cb = handle_output_frame;
compositor.output_resolution_cb = handle_output_resolution;
compositor.keyboard_key_cb = handle_keyboard_key;
compositor_init(&compositor);

36
examples/pointer.c
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@ -132,11 +132,16 @@ static void handle_output_add(struct output_state *ostate) {
struct wlr_output *wlr_output = ostate->output;
struct wlr_xcursor_image *image = sample->xcursor->images[0];
// reset layout
wlr_output_layout_destroy(sample->layout);
sample->layout =
configure_layout(sample->config, &ostate->compositor->outputs);
wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
struct output_config *o_config =
example_config_get_output(sample->config, ostate->output);
if (o_config) {
wlr_output_transform(ostate->output, o_config->transform);
wlr_output_layout_add(sample->layout, ostate->output, o_config->x,
o_config->y);
} else {
wlr_output_layout_add_auto(sample->layout, ostate->output);
}
// cursor configuration
char *mapped_output = sample->config->cursor.mapped_output;
@ -158,11 +163,9 @@ static void handle_output_add(struct output_state *ostate) {
}
static void handle_output_remove(struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_destroy(sample->layout);
sample->layout =
configure_layout(sample->config, &ostate->compositor->outputs);
wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_remove(sample->layout, ostate->output);
configure_devices(sample);
@ -172,15 +175,6 @@ static void handle_output_remove(struct output_state *ostate) {
}
}
static void handle_output_resolution(struct compositor_state *state,
struct output_state *ostate) {
struct sample_state *sample = ostate->compositor->data;
wlr_output_layout_destroy(sample->layout);
sample->layout =
configure_layout(sample->config, &ostate->compositor->outputs);
wlr_cursor_attach_output_layout(sample->cursor, sample->layout);
}
static void handle_input_add(struct compositor_state *state,
struct wlr_input_device *device) {
struct sample_state *sample = state->data;
@ -341,6 +335,8 @@ int main(int argc, char *argv[]) {
state.config = parse_args(argc, argv);
state.cursor = wlr_cursor_create();
state.layout = wlr_output_layout_init();
wlr_cursor_attach_output_layout(state.cursor, state.layout);
wlr_cursor_map_to_region(state.cursor, state.config->cursor.mapped_box);
wl_list_init(&state.devices);
@ -380,7 +376,6 @@ int main(int argc, char *argv[]) {
compositor.data = &state;
compositor.output_add_cb = handle_output_add;
compositor.output_remove_cb = handle_output_remove;
compositor.output_resolution_cb = handle_output_resolution;
compositor.output_frame_cb = handle_output_frame;
compositor.input_add_cb = handle_input_add;
compositor.input_remove_cb = handle_input_remove;
@ -407,4 +402,5 @@ int main(int argc, char *argv[]) {
wlr_xcursor_theme_destroy(theme);
example_config_destroy(state.config);
wlr_cursor_destroy(state.cursor);
wlr_output_layout_destroy(state.layout);
}

11
include/wlr/types/wlr_output_layout.h
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@ -67,4 +67,15 @@ void wlr_output_layout_closest_point(struct wlr_output_layout *layout,
struct wlr_box *wlr_output_layout_get_box(
struct wlr_output_layout *layout, struct wlr_output *reference);
/**
* Add an auto configured output to the layout. This will place the output in a
* sensible location in the layout. The coordinates of the output in the layout
* may adjust dynamically when the layout changes. If the output is already in
* the layout, it will become auto configured. If the position of the output is
* set such as with `wlr_output_layout_move()`, the output will become manually
* configured.
*/
void wlr_output_layout_add_auto(struct wlr_output_layout *layout,
struct wlr_output *output);
#endif

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);
}

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