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Jason Francis
2019-07-05 22:51:52 -04:00
commit b278730ddd
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/*
* Copyright (C) 2019 cyclopsian
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include <gtk/gtk.h>
#include <gdk/gdkwayland.h>
#include "wdisplay.h"
__attribute__((noreturn)) void wd_fatal_error(int status, const char *message) {
GtkWindow *parent = gtk_application_get_active_window(GTK_APPLICATION(g_application_get_default()));
GtkWidget *dialog = gtk_message_dialog_new(parent, GTK_DIALOG_MODAL, GTK_MESSAGE_ERROR, GTK_BUTTONS_OK, "%s", message);
gtk_dialog_run(GTK_DIALOG(dialog));
gtk_widget_destroy(dialog);
exit(status);
}
#define DEFAULT_ZOOM 0.1
#define MIN_ZOOM (1./1000.)
#define MAX_ZOOM 1000.
#define CANVAS_MARGIN 100
static const char *MODE_PREFIX = "mode";
static const char *TRANSFORM_PREFIX = "transform";
#define NUM_ROTATIONS 4
static const char *ROTATE_IDS[NUM_ROTATIONS] = {
"rotate_0", "rotate_90", "rotate_180", "rotate_270"
};
static int get_rotate_index(enum wl_output_transform transform) {
if (transform == WL_OUTPUT_TRANSFORM_90 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_90) {
return 1;
} else if (transform == WL_OUTPUT_TRANSFORM_180 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_180) {
return 2;
} else if (transform == WL_OUTPUT_TRANSFORM_270 || transform == WL_OUTPUT_TRANSFORM_FLIPPED_270) {
return 3;
}
return 0;
}
static bool has_changes(const struct wd_state *state) {
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
const struct wd_head *head = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (head->enabled != gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "enabled")))) {
return TRUE;
}
if (head->scale != gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "scale")))) {
return TRUE;
}
if (head->x != atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_x"))))) {
return TRUE;
}
if (head->y != atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_y"))))) {
return TRUE;
}
int w = head->mode != NULL ? head->mode->width : head->custom_mode.width;
if (w != atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "width"))))) {
return TRUE;
}
int h = head->mode != NULL ? head->mode->height : head->custom_mode.height;
if (h != atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "height"))))) {
return TRUE;
}
int r = head->mode != NULL ? head->mode->refresh : head->custom_mode.refresh;
if (r / 1000. != atof(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "refresh"))))) {
return TRUE;
}
for (int i = 0; i < NUM_ROTATIONS; i++) {
GtkWidget *rotate = GTK_WIDGET(gtk_builder_get_object(builder, ROTATE_IDS[i]));
gboolean selected;
g_object_get(rotate, "active", &selected, NULL);
if (selected) {
if (i != get_rotate_index(head->transform)) {
return TRUE;
}
break;
}
}
bool flipped = head->transform == WL_OUTPUT_TRANSFORM_FLIPPED
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_90
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_180
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_270;
if (flipped != gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "flipped")))) {
return TRUE;
}
}
return FALSE;
}
// BEGIN FORM CALLBACKS
static void show_apply(struct wd_state *state) {
bool changed = has_changes(state);
gtk_stack_set_visible_child_name(GTK_STACK(state->header_stack), changed ? "apply" : "title");
gtk_widget_queue_draw(state->canvas);
}
static void update_sensitivity(GtkWidget *form) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *enabled = GTK_WIDGET(gtk_builder_get_object(builder, "enabled"));
bool enabled_toggled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(enabled));
g_autoptr(GList) children = gtk_container_get_children(GTK_CONTAINER(form));
for (GList *child = children; child != NULL; child = child->next) {
GtkWidget *widget = GTK_WIDGET(child->data);
if (widget != enabled) {
gtk_widget_set_sensitive(widget, enabled_toggled);
}
}
}
static void select_rotate_option(GtkWidget *form, GtkWidget *model_button) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *rotate_button = GTK_WIDGET(gtk_builder_get_object(builder, "rotate_button"));
for (int i = 0; i < NUM_ROTATIONS; i++) {
GtkWidget *rotate = GTK_WIDGET(gtk_builder_get_object(builder, ROTATE_IDS[i]));
gboolean selected = model_button == rotate;
g_object_set(rotate, "active", selected, NULL);
if (selected) {
g_autofree gchar *rotate_text = NULL;
g_object_get(rotate, "text", &rotate_text, NULL);
gtk_button_set_label(GTK_BUTTON(rotate_button), rotate_text);
}
}
}
static void rotate_selected(GSimpleAction *action, GVariant *param, gpointer data) {
select_rotate_option(GTK_WIDGET(data), g_object_get_data(G_OBJECT(action), "widget"));
const struct wd_head *head = g_object_get_data(G_OBJECT(data), "head");
show_apply(head->state);
}
static void select_mode_option(GtkWidget *form, int32_t w, int32_t h, int32_t r) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *mode_box = GTK_WIDGET(gtk_builder_get_object(builder, "mode_box"));
g_autoptr(GList) children = gtk_container_get_children(GTK_CONTAINER(mode_box));
for (GList *child = children; child != NULL; child = child->next) {
const struct wd_mode *mode = g_object_get_data(G_OBJECT(child->data), "mode");
g_object_set(child->data, "active", w == mode->width && h == mode->height && r == mode->refresh, NULL);
}
}
static void update_mode_entries(GtkWidget *form, int32_t w, int32_t h, int32_t r) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *width = GTK_WIDGET(gtk_builder_get_object(builder, "width"));
GtkWidget *height = GTK_WIDGET(gtk_builder_get_object(builder, "height"));
GtkWidget *refresh = GTK_WIDGET(gtk_builder_get_object(builder, "refresh"));
g_autofree gchar *widthstr = g_strdup_printf("%d", w);
gtk_entry_set_text(GTK_ENTRY(width), widthstr);
g_autofree gchar *heightstr = g_strdup_printf("%d", h);
gtk_entry_set_text(GTK_ENTRY(height), heightstr);
g_autofree gchar *refreshstr = g_strdup_printf("%0.3f", r / 1000.0);
gtk_entry_set_text(GTK_ENTRY(refresh), refreshstr);
}
static void mode_selected(GSimpleAction *action, GVariant *param, gpointer data) {
GtkWidget *form = data;
const struct wd_head *head = g_object_get_data(G_OBJECT(form), "head");
const struct wd_mode *mode = g_object_get_data(G_OBJECT(action), "mode");
update_mode_entries(form, mode->width, mode->height, mode->refresh);
select_mode_option(form, mode->width, mode->height, mode->refresh);
show_apply(head->state);
}
// END FORM CALLBACKS
/*
* Recalculates the desired canvas size, accounting for zoom + margins.
*/
static void update_canvas_size(struct wd_state *state) {
int xmin = 0;
int xmax = 0;
int ymin = 0;
int ymax = 0;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
int w = head->custom_mode.width;
int h = head->custom_mode.height;
if (head->enabled && head->mode != NULL) {
w = head->mode->width;
h = head->mode->height;
}
int x2 = head->x + w;
int y2 = head->y + h;
xmin = MIN(xmin, head->x);
xmax = MAX(xmax, x2);
ymin = MIN(ymin, head->y);
ymax = MAX(ymax, y2);
}
// update canvas sizings
state->xorigin = floor(xmin * state->zoom) - CANVAS_MARGIN;
state->yorigin = floor(ymin * state->zoom) - CANVAS_MARGIN;
int heads_width = ceil((xmax - xmin) * state->zoom) + CANVAS_MARGIN * 2;
int heads_height = ceil((ymax - ymin) * state->zoom) + CANVAS_MARGIN * 2;
gtk_layout_set_size(GTK_LAYOUT(state->canvas), heads_width, heads_height);
}
static void clear_menu(GtkWidget *box, GActionMap *action_map) {
g_autoptr(GList) children = gtk_container_get_children(GTK_CONTAINER(box));
for (GList *child = children; child != NULL; child = child->next) {
g_action_map_remove_action(action_map, strchr(gtk_actionable_get_action_name(GTK_ACTIONABLE(child->data)), '.') + 1);
gtk_container_remove(GTK_CONTAINER(box), GTK_WIDGET(child->data));
}
}
static void update_head_form(GtkWidget *form, unsigned int fields) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
GtkWidget *description = GTK_WIDGET(gtk_builder_get_object(builder, "description"));
GtkWidget *physical_size = GTK_WIDGET(gtk_builder_get_object(builder, "physical_size"));
GtkWidget *enabled = GTK_WIDGET(gtk_builder_get_object(builder, "enabled"));
GtkWidget *scale = GTK_WIDGET(gtk_builder_get_object(builder, "scale"));
GtkWidget *pos_x = GTK_WIDGET(gtk_builder_get_object(builder, "pos_x"));
GtkWidget *pos_y = GTK_WIDGET(gtk_builder_get_object(builder, "pos_y"));
GtkWidget *mode_box = GTK_WIDGET(gtk_builder_get_object(builder, "mode_box"));
GtkWidget *flipped = GTK_WIDGET(gtk_builder_get_object(builder, "flipped"));
const struct wd_head *head = g_object_get_data(G_OBJECT(form), "head");
if (fields & WD_FIELD_NAME) {
gtk_container_child_set(GTK_CONTAINER(head->state->stack), form, "name", head->name, "title", head->name, NULL);
}
if (fields & WD_FIELD_DESCRIPTION) {
gtk_label_set_text(GTK_LABEL(description), head->description);
}
if (fields & WD_FIELD_PHYSICAL_SIZE) {
g_autofree gchar *physical_str = g_strdup_printf("%dmm × %dmm", head->phys_width, head->phys_height);
gtk_label_set_text(GTK_LABEL(physical_size), physical_str);
}
if (fields & WD_FIELD_ENABLED) {
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(enabled), head->enabled);
}
if (fields & WD_FIELD_SCALE) {
gtk_spin_button_set_value(GTK_SPIN_BUTTON(scale), head->scale);
}
if (fields & WD_FIELD_POSITION) {
g_autofree gchar *xstr = g_strdup_printf("%d", head->x);
gtk_entry_set_text(GTK_ENTRY(pos_x), xstr);
g_autofree gchar *ystr = g_strdup_printf("%d", head->y);
gtk_entry_set_text(GTK_ENTRY(pos_y), ystr);
}
if (fields & WD_FIELD_MODE) {
GActionMap *mode_actions = G_ACTION_MAP(g_object_get_data(G_OBJECT(form), "mode-group"));
clear_menu(mode_box, mode_actions);
struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
g_autofree gchar *name = g_strdup_printf("%d×%d@%0.3fHz", mode->width, mode->height, mode->refresh / 1000.);
GSimpleAction *action = g_simple_action_new(name, NULL);
g_action_map_add_action(G_ACTION_MAP(mode_actions), G_ACTION(action));
g_signal_connect(action, "activate", G_CALLBACK(mode_selected), form);
g_object_set_data(G_OBJECT(action), "mode", mode);
g_object_unref(action);
GtkWidget *button = gtk_model_button_new();
g_autoptr(GString) prefixed_name = g_string_new(MODE_PREFIX);
g_string_append(prefixed_name, ".");
g_string_append(prefixed_name, name);
gtk_actionable_set_action_name(GTK_ACTIONABLE(button), prefixed_name->str);
g_object_set(button, "role", GTK_BUTTON_ROLE_RADIO, "text", name, NULL);
gtk_box_pack_start(GTK_BOX(mode_box), button, FALSE, FALSE, 0);
g_object_set_data(G_OBJECT(button), "mode", mode);
gtk_widget_show_all(button);
}
// Mode entries
int w = head->custom_mode.width;
int h = head->custom_mode.height;
int r = head->custom_mode.refresh;
if (head->enabled && head->mode != NULL) {
w = head->mode->width;
h = head->mode->height;
r = head->mode->refresh;
}
update_mode_entries(form, w, h, r);
select_mode_option(form, w, h, r);
gtk_widget_show_all(mode_box);
}
if (fields & WD_FIELD_TRANSFORM) {
int active_rotate = get_rotate_index(head->transform);
select_rotate_option(form, GTK_WIDGET(gtk_builder_get_object(builder, ROTATE_IDS[active_rotate])));
gtk_toggle_button_set_active(GTK_TOGGLE_BUTTON(flipped),
head->transform == WL_OUTPUT_TRANSFORM_FLIPPED
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_90
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_180
|| head->transform == WL_OUTPUT_TRANSFORM_FLIPPED_270);
}
// Sync state
if (fields & WD_FIELD_ENABLED) {
update_sensitivity(form);
}
show_apply(head->state);
gtk_widget_queue_draw(head->state->canvas);
}
void wd_ui_reset_heads(struct wd_state *state) {
if (state->stack == NULL) {
return;
}
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
GList *form_iter = forms;
struct wd_head *head;
wl_list_for_each(head, &state->heads, link) {
GtkBuilder *builder;
GtkWidget *form;
if (form_iter == NULL) {
builder = gtk_builder_new_from_resource("/head.ui");
form = GTK_WIDGET(gtk_builder_get_object(builder, "form"));
g_object_set_data(G_OBJECT(form), "builder", builder);
g_object_set_data(G_OBJECT(form), "head", head);
gtk_stack_add_titled(GTK_STACK(state->stack), form, head->name, head->name);
GtkWidget *mode_button = GTK_WIDGET(gtk_builder_get_object(builder, "mode_button"));
GtkWidget *rotate_button = GTK_WIDGET(gtk_builder_get_object(builder, "rotate_button"));
GSimpleActionGroup *mode_actions = g_simple_action_group_new();
gtk_widget_insert_action_group(mode_button, MODE_PREFIX, G_ACTION_GROUP(mode_actions));
g_object_set_data(G_OBJECT(form), "mode-group", mode_actions);
g_object_unref(mode_actions);
GSimpleActionGroup *transform_actions = g_simple_action_group_new();
gtk_widget_insert_action_group(rotate_button, TRANSFORM_PREFIX, G_ACTION_GROUP(transform_actions));
g_object_unref(transform_actions);
for (int i = 0; i < NUM_ROTATIONS; i++) {
GtkWidget *button = GTK_WIDGET(gtk_builder_get_object(builder, ROTATE_IDS[i]));
g_object_set(button, "role", GTK_BUTTON_ROLE_RADIO, NULL);
GSimpleAction *action = g_simple_action_new(ROTATE_IDS[i], NULL);
g_action_map_add_action(G_ACTION_MAP(transform_actions), G_ACTION(action));
g_signal_connect(action, "activate", G_CALLBACK(rotate_selected), form);
g_object_set_data(G_OBJECT(action), "widget", button);
g_object_unref(action);
}
update_head_form(form, WD_FIELDS_ALL);
gtk_widget_show_all(form);
g_signal_connect_swapped(gtk_builder_get_object(builder, "enabled"), "toggled", G_CALLBACK(update_sensitivity), form);
g_signal_connect_swapped(gtk_builder_get_object(builder, "enabled"), "toggled", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "scale"), "value-changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_x"), "changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "pos_y"), "changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "width"), "changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "height"), "changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "refresh"), "changed", G_CALLBACK(show_apply), state);
g_signal_connect_swapped(gtk_builder_get_object(builder, "flipped"), "toggled", G_CALLBACK(show_apply), state);
} else {
form = form_iter->data;
g_object_set_data(G_OBJECT(form), "head", head);
form_iter = form_iter->next;
}
}
// remove everything else
for (; form_iter != NULL; form_iter = form_iter->next) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
g_object_unref(builder);
gtk_container_remove(GTK_CONTAINER(state->stack), GTK_WIDGET(form_iter->data));
}
gtk_widget_queue_draw(state->canvas);
}
/*
* Updates the UI form for a single head. Useful for when the compositor notifies us of
* updated configuration caused by another program.
*/
void wd_ui_reset_head(const struct wd_head *head, unsigned int fields) {
if (head->state->stack == NULL) {
return;
}
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(head->state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
const struct wd_head *other = g_object_get_data(G_OBJECT(form_iter->data), "head");
if (head == other) {
update_head_form(GTK_WIDGET(form_iter->data), fields);
}
}
}
void wd_ui_reset_all(struct wd_state *state) {
wd_ui_reset_heads(state);
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
update_head_form(GTK_WIDGET(form_iter->data), WD_FIELDS_ALL);
}
}
void wd_ui_apply_done(struct wd_state *state, struct wl_list *outputs) {
gtk_style_context_remove_class(gtk_widget_get_style_context(state->spinner), "visible");
gtk_overlay_set_overlay_pass_through(GTK_OVERLAY(state->overlay), state->spinner, TRUE);
gtk_widget_set_sensitive(state->stack_switcher, TRUE);
gtk_widget_set_sensitive(state->stack, TRUE);
gtk_widget_set_sensitive(state->zoom_in, TRUE);
gtk_widget_set_sensitive(state->zoom_reset, TRUE);
gtk_widget_set_sensitive(state->zoom_out, TRUE);
show_apply(state);
}
void wd_ui_show_error(struct wd_state *state, const char *message) {
gtk_label_set_text(GTK_LABEL(state->info_label), message);
gtk_widget_show(state->info_bar);
gtk_info_bar_set_revealed(GTK_INFO_BAR(state->info_bar), TRUE);
}
void fill_output_from_form(struct wd_head_config *output, GtkWidget *form) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form), "builder"));
output->head = g_object_get_data(G_OBJECT(form), "head");
output->enabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "enabled")));
output->scale = gtk_spin_button_get_value(GTK_SPIN_BUTTON(gtk_builder_get_object(builder, "scale")));
output->x = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_x"))));
output->y = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_y"))));
output->width = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "width"))));
output->height = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "height"))));
output->refresh = atof(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "refresh")))) * 1000.;
gboolean flipped = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "flipped")));
for (int i = 0; i < NUM_ROTATIONS; i++) {
GtkWidget *rotate = GTK_WIDGET(gtk_builder_get_object(builder, ROTATE_IDS[i]));
gboolean selected;
g_object_get(rotate, "active", &selected, NULL);
if (selected) {
switch (i) {
case 0: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED : WL_OUTPUT_TRANSFORM_NORMAL; break;
case 1: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_90 : WL_OUTPUT_TRANSFORM_90; break;
case 2: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_180 : WL_OUTPUT_TRANSFORM_180; break;
case 3: output->transform = flipped ? WL_OUTPUT_TRANSFORM_FLIPPED_270 : WL_OUTPUT_TRANSFORM_270; break;
}
break;
}
}
}
// BEGIN GLOBAL CALLBACKS
static void cleanup(GtkWidget *window, gpointer state) {
g_free(state);
}
gboolean draw(GtkWidget *widget, cairo_t *cr, gpointer data) {
struct wd_state *state = data;
update_canvas_size(state);
GtkStyleContext *style_ctx = gtk_widget_get_style_context(widget);
GtkAdjustment *scroll_x_adj = gtk_scrolled_window_get_hadjustment(GTK_SCROLLED_WINDOW(state->scroller));
GtkAdjustment *scroll_y_adj = gtk_scrolled_window_get_vadjustment(GTK_SCROLLED_WINDOW(state->scroller));
double scroll_x = gtk_adjustment_get_value(scroll_x_adj);
double scroll_y = gtk_adjustment_get_value(scroll_y_adj);
int width = gtk_widget_get_allocated_width(widget);
int height = gtk_widget_get_allocated_height(widget);
GdkRGBA border;
gtk_style_context_lookup_color(style_ctx, "borders", &border);
gdk_cairo_set_source_rgba(cr, &border);
cairo_set_line_width(cr, .5);
gtk_render_background(style_ctx, cr, 0, 0, width, height);
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
GtkBuilder *builder = GTK_BUILDER(g_object_get_data(G_OBJECT(form_iter->data), "builder"));
gboolean enabled = gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(gtk_builder_get_object(builder, "enabled")));
if (enabled) {
int x = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_x"))));
int y = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "pos_y"))));
int w = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "width"))));
int h = atoi(gtk_entry_get_text(GTK_ENTRY(gtk_builder_get_object(builder, "height"))));
cairo_rectangle(cr,
x * state->zoom + .5 - scroll_x - state->xorigin,
y * state->zoom + .5 - scroll_y - state->yorigin,
w * state->zoom,
h * state->zoom);
cairo_stroke(cr);
}
}
return TRUE;
}
static void cancel_changes(GtkButton *button, gpointer data) {
struct wd_state *state = data;
gtk_stack_set_visible_child_name(GTK_STACK(state->header_stack), "title");
wd_ui_reset_all(state);
}
static void apply_changes(GtkButton *button, gpointer data) {
struct wd_state *state = data;
gtk_stack_set_visible_child_name(GTK_STACK(state->header_stack), "title");
gtk_style_context_add_class(gtk_widget_get_style_context(state->spinner), "visible");
gtk_overlay_set_overlay_pass_through(GTK_OVERLAY(state->overlay), state->spinner, FALSE);
gtk_widget_set_sensitive(state->stack_switcher, FALSE);
gtk_widget_set_sensitive(state->stack, FALSE);
gtk_widget_set_sensitive(state->zoom_in, FALSE);
gtk_widget_set_sensitive(state->zoom_reset, FALSE);
gtk_widget_set_sensitive(state->zoom_out, FALSE);
struct wl_list *outputs = calloc(1, sizeof(*outputs));
wl_list_init(outputs);
g_autoptr(GList) forms = gtk_container_get_children(GTK_CONTAINER(state->stack));
for (GList *form_iter = forms; form_iter != NULL; form_iter = form_iter->next) {
struct wd_head_config *output = calloc(1, sizeof(*output));
wl_list_insert(outputs, &output->link);
fill_output_from_form(output, GTK_WIDGET(form_iter->data));
}
wd_apply_state(state, outputs);
}
static void update_zoom(struct wd_state *state) {
g_autofree gchar *zoom_percent = g_strdup_printf("%.f%%", state->zoom * 100.);
gtk_button_set_label(GTK_BUTTON(state->zoom_reset), zoom_percent);
gtk_widget_set_sensitive(state->zoom_in, state->zoom < MAX_ZOOM);
gtk_widget_set_sensitive(state->zoom_out, state->zoom > MIN_ZOOM);
gtk_widget_queue_draw(state->canvas);
}
static void zoom_out(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom *= 0.75;
state->zoom = MAX(state->zoom, MIN_ZOOM);
update_zoom(state);
}
static void zoom_reset(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom = DEFAULT_ZOOM;
update_zoom(state);
}
static void zoom_in(GtkButton *button, gpointer data) {
struct wd_state *state = data;
state->zoom /= 0.75;
state->zoom = MIN(state->zoom, MAX_ZOOM);
update_zoom(state);
}
static void info_response(GtkInfoBar *info_bar, gint response_id, gpointer data) {
gtk_info_bar_set_revealed(info_bar, FALSE);
}
static void info_bar_animation_done(GObject *object, GParamSpec *pspec, gpointer data) {
gboolean done = gtk_revealer_get_child_revealed(GTK_REVEALER(object));
if (!done) {
struct wd_state *state = data;
gtk_widget_set_visible(state->info_bar, gtk_revealer_get_reveal_child(GTK_REVEALER(object)));
}
}
static void activate(GtkApplication* app, gpointer user_data) {
GdkDisplay *gdk_display = gdk_display_get_default();
if (!GDK_IS_WAYLAND_DISPLAY(gdk_display)) {
wd_fatal_error(1, "This program is only usable on Wayland sessions.");
}
struct wd_state *state = g_new0(struct wd_state, 1);
state->zoom = DEFAULT_ZOOM;
wl_list_init(&state->heads);
GtkCssProvider *css_provider = gtk_css_provider_new();
gtk_css_provider_load_from_resource(css_provider, "/style.css");
gtk_style_context_add_provider_for_screen(gdk_screen_get_default(), GTK_STYLE_PROVIDER(css_provider),
GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
GtkBuilder *builder = gtk_builder_new_from_resource("/wd.ui");
GtkWidget *window = GTK_WIDGET(gtk_builder_get_object(builder, "heads_window"));
state->header_stack = GTK_WIDGET(gtk_builder_get_object(builder, "header_stack"));
state->stack_switcher = GTK_WIDGET(gtk_builder_get_object(builder, "heads_stack_switcher"));
state->stack = GTK_WIDGET(gtk_builder_get_object(builder, "heads_stack"));
state->scroller = GTK_WIDGET(gtk_builder_get_object(builder, "heads_scroll"));
state->canvas = GTK_WIDGET(gtk_builder_get_object(builder, "heads_layout"));
state->spinner = GTK_WIDGET(gtk_builder_get_object(builder, "spinner"));
state->zoom_out = GTK_WIDGET(gtk_builder_get_object(builder, "zoom_out"));
state->zoom_reset = GTK_WIDGET(gtk_builder_get_object(builder, "zoom_reset"));
state->zoom_in = GTK_WIDGET(gtk_builder_get_object(builder, "zoom_in"));
state->overlay = GTK_WIDGET(gtk_builder_get_object(builder, "overlay"));
state->info_bar = GTK_WIDGET(gtk_builder_get_object(builder, "heads_info"));
state->info_label = GTK_WIDGET(gtk_builder_get_object(builder, "heads_info_label"));
gtk_builder_add_callback_symbol(builder, "heads_draw", G_CALLBACK(draw));
gtk_builder_add_callback_symbol(builder, "apply_changes", G_CALLBACK(apply_changes));
gtk_builder_add_callback_symbol(builder, "cancel_changes", G_CALLBACK(cancel_changes));
gtk_builder_add_callback_symbol(builder, "zoom_out", G_CALLBACK(zoom_out));
gtk_builder_add_callback_symbol(builder, "zoom_reset", G_CALLBACK(zoom_reset));
gtk_builder_add_callback_symbol(builder, "zoom_in", G_CALLBACK(zoom_in));
gtk_builder_add_callback_symbol(builder, "info_response", G_CALLBACK(info_response));
gtk_builder_connect_signals(builder, state);
gtk_box_set_homogeneous(GTK_BOX(gtk_builder_get_object(builder, "zoom_box")), FALSE);
update_zoom(state);
/* first child of GtkInfoBar is always GtkRevealer */
g_autoptr(GList) info_children = gtk_container_get_children(GTK_CONTAINER(state->info_bar));
g_signal_connect(info_children->data, "notify::child-revealed", G_CALLBACK(info_bar_animation_done), state);
struct wl_display *display = gdk_wayland_display_get_wl_display(gdk_display);
wd_add_output_management_listener(state, display);
if (state->output_manager == NULL) {
wd_fatal_error(1, "Compositor doesn't support wlr-output-management-unstable-v1");
}
gtk_application_add_window(app, GTK_WINDOW(window));
gtk_widget_show_all(window);
g_signal_connect(window, "destroy", G_CALLBACK(cleanup), state);
g_object_unref(builder);
}
// END GLOBAL CALLBACKS
int main(int argc, char *argv[]) {
GtkApplication *app = gtk_application_new("org.swaywm.sway-outputs", G_APPLICATION_FLAGS_NONE);
g_signal_connect(app, "activate", G_CALLBACK(activate), NULL);
int status = g_application_run(G_APPLICATION(app), argc, argv);
g_object_unref(app);
return status;
}

21
src/meson.build Normal file
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cc = meson.get_compiler('c')
m_dep = cc.find_library('m', required : false)
gdk = dependency('gdk-3.0')
gtk = dependency('gtk+-3.0')
assert(gdk.get_pkgconfig_variable('targets').split().contains('wayland'), 'Wayland GDK backend not present')
executable(
'wdisplay',
[
'main.c',
'outputs.c',
resources,
],
dependencies : [
m_dep,
wayland_client,
client_protos,
gtk
]
)

349
src/outputs.c Normal file
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/*
* Copyright (C) 2019 cyclopsian
* Copyright (C) 2017-2019 emersion
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Parts of this file are taken from emersion/kanshi:
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/main.c
*/
#include <assert.h>
#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include "wdisplay.h"
#include "wlr-output-management-unstable-v1-client-protocol.h"
#define HEADS_MAX 64
struct wd_pending_config {
struct wd_state *state;
struct wl_list *outputs;
};
static void destroy_pending(struct wd_pending_config *pending) {
struct wd_head_config *output, *tmp;
wl_list_for_each_safe(output, tmp, pending->outputs, link) {
wl_list_remove(&output->link);
free(output);
}
free(pending->outputs);
free(pending);
}
static void config_handle_succeeded(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_apply_done(pending->state, pending->outputs);
destroy_pending(pending);
}
static void config_handle_failed(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_reset_all(pending->state);
wd_ui_apply_done(pending->state, NULL);
wd_ui_show_error(pending->state,
"The display server was not able to process your changes.");
destroy_pending(pending);
}
static void config_handle_cancelled(void *data,
struct zwlr_output_configuration_v1 *config) {
struct wd_pending_config *pending = data;
zwlr_output_configuration_v1_destroy(config);
wd_ui_reset_all(pending->state);
wd_ui_apply_done(pending->state, NULL);
wd_ui_show_error(pending->state,
"The display configuration was modified by the server before updates were processed. "
"Please check the configuration and apply the changes again.");
destroy_pending(pending);
}
static const struct zwlr_output_configuration_v1_listener config_listener = {
.succeeded = config_handle_succeeded,
.failed = config_handle_failed,
.cancelled = config_handle_cancelled,
};
void wd_apply_state(struct wd_state *state, struct wl_list *new_outputs) {
struct zwlr_output_configuration_v1 *config =
zwlr_output_manager_v1_create_configuration(state->output_manager, state->serial);
struct wd_pending_config *pending = calloc(1, sizeof(*pending));
pending->state = state;
pending->outputs = new_outputs;
zwlr_output_configuration_v1_add_listener(config, &config_listener, pending);
ssize_t i = -1;
struct wd_head_config *output;
wl_list_for_each(output, new_outputs, link) {
i++;
struct wd_head *head = output->head;
if (!output->enabled && output->enabled != head->enabled) {
zwlr_output_configuration_v1_disable_head(config, head->wlr_head);
continue;
}
struct zwlr_output_configuration_head_v1 *config_head = zwlr_output_configuration_v1_enable_head(config, head->wlr_head);
const struct wd_mode *selected_mode = NULL;
const struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->width == output->width && mode->height == output->height && mode->refresh == output->refresh) {
selected_mode = mode;
break;
}
}
if (selected_mode != NULL) {
if (selected_mode != head->mode) {
zwlr_output_configuration_head_v1_set_mode(config_head, selected_mode->wlr_mode);
}
} else if (output->width != head->custom_mode.width
|| output->height != head->custom_mode.height
|| output->refresh != head->custom_mode.refresh) {
zwlr_output_configuration_head_v1_set_custom_mode(config_head,
output->width, output->height, output->refresh);
}
if (output->x != head->x || output->y != head->y) {
zwlr_output_configuration_head_v1_set_position(config_head, output->x, output->y);
}
if (output->scale != head->scale) {
zwlr_output_configuration_head_v1_set_scale(config_head, wl_fixed_from_double(output->scale));
}
if (output->transform != head->transform) {
zwlr_output_configuration_head_v1_set_transform(config_head, output->transform);
}
}
zwlr_output_configuration_v1_apply(config);
}
static void mode_handle_size(void *data, struct zwlr_output_mode_v1 *wlr_mode,
int32_t width, int32_t height) {
struct wd_mode *mode = data;
mode->width = width;
mode->height = height;
}
static void mode_handle_refresh(void *data,
struct zwlr_output_mode_v1 *wlr_mode, int32_t refresh) {
struct wd_mode *mode = data;
mode->refresh = refresh;
}
static void mode_handle_preferred(void *data,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_mode *mode = data;
mode->preferred = true;
}
static void mode_handle_finished(void *data,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_mode *mode = data;
wl_list_remove(&mode->link);
zwlr_output_mode_v1_destroy(mode->wlr_mode);
free(mode);
}
static const struct zwlr_output_mode_v1_listener mode_listener = {
.size = mode_handle_size,
.refresh = mode_handle_refresh,
.preferred = mode_handle_preferred,
.finished = mode_handle_finished,
};
static void head_handle_name(void *data,
struct zwlr_output_head_v1 *wlr_head, const char *name) {
struct wd_head *head = data;
head->name = strdup(name);
wd_ui_reset_head(head, WD_FIELD_NAME);
}
static void head_handle_description(void *data,
struct zwlr_output_head_v1 *wlr_head, const char *description) {
struct wd_head *head = data;
head->description = strdup(description);
wd_ui_reset_head(head, WD_FIELD_DESCRIPTION);
}
static void head_handle_physical_size(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t width, int32_t height) {
struct wd_head *head = data;
head->phys_width = width;
head->phys_height = height;
wd_ui_reset_head(head, WD_FIELD_PHYSICAL_SIZE);
}
static void head_handle_mode(void *data,
struct zwlr_output_head_v1 *wlr_head,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_head *head = data;
struct wd_mode *mode = calloc(1, sizeof(*mode));
mode->head = head;
mode->wlr_mode = wlr_mode;
wl_list_insert(head->modes.prev, &mode->link);
zwlr_output_mode_v1_add_listener(wlr_mode, &mode_listener, mode);
}
static void head_handle_enabled(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t enabled) {
struct wd_head *head = data;
head->enabled = !!enabled;
if (!enabled) {
head->mode = NULL;
}
wd_ui_reset_head(head, WD_FIELD_ENABLED);
}
static void head_handle_current_mode(void *data,
struct zwlr_output_head_v1 *wlr_head,
struct zwlr_output_mode_v1 *wlr_mode) {
struct wd_head *head = data;
struct wd_mode *mode;
wl_list_for_each(mode, &head->modes, link) {
if (mode->wlr_mode == wlr_mode) {
head->mode = mode;
wd_ui_reset_head(head, WD_FIELD_MODE);
return;
}
}
fprintf(stderr, "received unknown current_mode\n");
head->mode = NULL;
}
static void head_handle_position(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t x, int32_t y) {
struct wd_head *head = data;
head->x = x;
head->y = y;
wd_ui_reset_head(head, WD_FIELD_POSITION);
}
static void head_handle_transform(void *data,
struct zwlr_output_head_v1 *wlr_head, int32_t transform) {
struct wd_head *head = data;
head->transform = transform;
wd_ui_reset_head(head, WD_FIELD_TRANSFORM);
}
static void head_handle_scale(void *data,
struct zwlr_output_head_v1 *wlr_head, wl_fixed_t scale) {
struct wd_head *head = data;
head->scale = wl_fixed_to_double(scale);
wd_ui_reset_head(head, WD_FIELD_SCALE);
}
static void head_handle_finished(void *data,
struct zwlr_output_head_v1 *wlr_head) {
struct wd_head *head = data;
wl_list_remove(&head->link);
zwlr_output_head_v1_destroy(head->wlr_head);
free(head->name);
free(head->description);
free(head);
}
static const struct zwlr_output_head_v1_listener head_listener = {
.name = head_handle_name,
.description = head_handle_description,
.physical_size = head_handle_physical_size,
.mode = head_handle_mode,
.enabled = head_handle_enabled,
.current_mode = head_handle_current_mode,
.position = head_handle_position,
.transform = head_handle_transform,
.scale = head_handle_scale,
.finished = head_handle_finished,
};
static void output_manager_handle_head(void *data,
struct zwlr_output_manager_v1 *manager,
struct zwlr_output_head_v1 *wlr_head) {
struct wd_state *state = data;
struct wd_head *head = calloc(1, sizeof(*head));
head->state = state;
head->wlr_head = wlr_head;
head->scale = 1.0;
wl_list_init(&head->modes);
wl_list_insert(&state->heads, &head->link);
zwlr_output_head_v1_add_listener(wlr_head, &head_listener, head);
}
static void output_manager_handle_done(void *data,
struct zwlr_output_manager_v1 *manager, uint32_t serial) {
struct wd_state *state = data;
state->serial = serial;
assert(wl_list_length(&state->heads) <= HEADS_MAX);
wd_ui_reset_heads(state);
}
static void output_manager_handle_finished(void *data,
struct zwlr_output_manager_v1 *manager) {
// This space is intentionally left blank
}
static const struct zwlr_output_manager_v1_listener output_manager_listener = {
.head = output_manager_handle_head,
.done = output_manager_handle_done,
.finished = output_manager_handle_finished,
};
static void registry_handle_global(void *data, struct wl_registry *registry,
uint32_t name, const char *interface, uint32_t version) {
struct wd_state *state = data;
if (strcmp(interface, zwlr_output_manager_v1_interface.name) == 0) {
state->output_manager = wl_registry_bind(registry, name, &zwlr_output_manager_v1_interface, 1);
zwlr_output_manager_v1_add_listener(state->output_manager, &output_manager_listener, state);
}
}
static void registry_handle_global_remove(void *data,
struct wl_registry *registry, uint32_t name) {
// This space is intentionally left blank
}
static const struct wl_registry_listener registry_listener = {
.global = registry_handle_global,
.global_remove = registry_handle_global_remove,
};
void wd_add_output_management_listener(struct wd_state *state, struct wl_display *display) {
struct wl_registry *registry = wl_display_get_registry(display);
wl_registry_add_listener(registry, &registry_listener, state);
wl_display_dispatch(display);
wl_display_roundtrip(display);
}

166
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/*
* Copyright (C) 2019 cyclopsian
* Copyright (C) 2017-2019 emersion
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE X CONSORTIUM BE LIABLE FOR ANY
* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
/*
* Parts of this file are taken from emersion/kanshi:
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/include/kanshi.h
* https://github.com/emersion/kanshi/blob/38d27474b686fcc8324cc5e454741a49577c0988/include/config.h
*/
#ifndef WDISPLAY_WDISPLAY_H
#define WDISPLAY_WDISPLAY_H
#include <stdbool.h>
#include <wayland-client.h>
struct zwlr_output_mode_v1;
struct zwlr_output_head_v1;
struct zwlr_output_manager_v1;
struct _GtkWidget;
typedef struct _GtkWidget GtkWidget;
struct _GtkBuilder;
typedef struct _GtkBuilder GtkBuilder;
enum wd_head_fields {
WD_FIELD_NAME = 1 << 0,
WD_FIELD_ENABLED = 1 << 1,
WD_FIELD_DESCRIPTION = 1 << 2,
WD_FIELD_PHYSICAL_SIZE = 1 << 3,
WD_FIELD_SCALE = 1 << 4,
WD_FIELD_POSITION = 1 << 5,
WD_FIELD_MODE = 1 << 6,
WD_FIELD_TRANSFORM = 1 << 7,
WD_FIELDS_ALL = (1 << 8) - 1
};
struct wd_head_config {
struct wl_list link;
struct wd_head *head;
bool enabled;
int32_t width;
int32_t height;
int32_t refresh; // mHz
int32_t x;
int32_t y;
double scale;
enum wl_output_transform transform;
};
struct wd_mode {
struct wd_head *head;
struct zwlr_output_mode_v1 *wlr_mode;
struct wl_list link;
int32_t width, height;
int32_t refresh; // mHz
bool preferred;
};
struct wd_head {
struct wd_state *state;
struct zwlr_output_head_v1 *wlr_head;
struct wl_list link;
char *name, *description;
int32_t phys_width, phys_height; // mm
struct wl_list modes;
bool enabled;
struct wd_mode *mode;
struct {
int32_t width, height;
int32_t refresh;
} custom_mode;
int32_t x, y;
enum wl_output_transform transform;
double scale;
};
struct wd_state {
struct zwlr_output_manager_v1 *output_manager;
struct wl_list heads;
uint32_t serial;
double zoom;
int xorigin;
int yorigin;
GtkWidget *header_stack;
GtkWidget *stack_switcher;
GtkWidget *stack;
GtkWidget *scroller;
GtkWidget *canvas;
GtkWidget *spinner;
GtkWidget *zoom_out;
GtkWidget *zoom_reset;
GtkWidget *zoom_in;
GtkWidget *overlay;
GtkWidget *info_bar;
GtkWidget *info_label;
};
/*
* Displays an error message and then exits the program.
*/
void wd_fatal_error(int status, const char *message);
/*
* Starts listening for output management events from the compositor.
*/
void wd_add_output_management_listener(struct wd_state *state, struct wl_display *display);
/*
* Sends updated display configuration back to the compositor.
*/
void wd_apply_state(struct wd_state *state, struct wl_list *new_outputs);
/*
* Updates the UI stack of all heads. Does not update individual head forms.
* Useful for when a display is plugged/unplugged and we want to add/remove
* a page, but we don't want to wipe out user's changes on the other pages.
*/
void wd_ui_reset_heads(struct wd_state *state);
/*
* Updates a form with head configuration from the server. Only updates specified fields.
*/
void wd_ui_reset_head(const struct wd_head *head, unsigned int fields);
/*
* Updates the stack and all forms to the last known server state.
*/
void wd_ui_reset_all(struct wd_state *state);
/*
* Reactivates the GUI after the display configuration updates.
*/
void wd_ui_apply_done(struct wd_state *state, struct wl_list *outputs);
/*
* Reactivates the GUI after the display configuration updates.
*/
void wd_ui_show_error(struct wd_state *state, const char *message);
#endif