Implement output configuration through config

Do not use `output res WIDTHxHEIGHT` yet, wlc has issues with it (cc
@Cloudef)

include/config.h

@@ -22,6 +22,12 @@ struct sway_mode {
 	list_t *bindings;
 };
 
+struct output_config {
+	char *name;
+	int width, height;
+	int x, y;
+};
+
 struct workspace_output {
 	char *output;
 	char *workspace;
@@ -32,6 +38,7 @@ struct sway_config {
 	list_t *modes;
 	list_t *cmd_queue;
 	list_t *workspace_outputs;
+	list_t *output_configs;
 	struct sway_mode *current_mode;
 	uint32_t floating_mod;
 

sway.5.txt

@@ -41,6 +41,11 @@ Commands
 **floating** toggle::
 	Toggles the "floating" status of the focused view.
 
+**floating_modifier** <modifier>::
+	When the _modifier_ key is held down, you may use left click to drag floating
+	windows, and right click to resize them. Unlike i3, this modifier may also be
+	used to resize and move windows that are tiled.
+
 **focus** <direction>::
 	Direction may be one of _up_, _down_, _left_, _right_, or _parent_. The
 	directional focus commands will move the focus in that direction. The parent
@@ -55,6 +60,16 @@ Commands
 	If set to _yes_, the currently focused view will change as you move your
 	mouse around the screen to the view that ends up underneath your mouse.
 
+**fullscreen**::
+	Toggles fullscreen status for the focused view.
+
+**gaps** <amount>::
+	Adds _amount_ pixels between each view, and around each output.
+
+**gaps** <inner|outer> <amount>::
+	Adds _amount_ pixels as an _inner_ or _outer_ gap, where the former affects
+	spacing between views and the latter affects the space around each output.
+
 **kill**::
 	Closes the currently focused view.
 
@@ -62,16 +77,27 @@ Commands
 	Sets the layout mode of the focused container. _mode_ can be one of _splith_,
 	_splitv_, or _toggle split_.
 
+**move** <left|right|up|down>::
+	Moves the focused container _left_, _right_, _up_, or _down_.
+
+**output** <name> <resolution|res WIDTHxHEIGHT> <position|pos X,Y>::
+	Configures the specified output. It will use the given resolution and be
+	arranged at the given position in the layout tree. You may omit either of
+	these parameters if you only want to set one of them.
+
 **reload**::
 	Reloads the sway config file without restarting sway.
 
+**resize** <shrink|grow> <width|height> <amount>::
+	Resizes the currently focused container or view by _amount_. _amount_ can be
+	specified as "n px" or "n ppt" or "n px or n ppt".
+
 **set** <name> <value>::
 	Creates a substitution for _value_ that can be used with $_name_ in other
 	commands.
 
-**split** <vertical|horizontal>::
-	Splits the current container, vertically or horiziontally. The letters "h" and
-	"v" can be used instead of the full words "vertical" or "horizontal".
+**split** <vertical|v|horizontal|h>::
+	Splits the current container, vertically or horiziontally.
 
 **splith**::
 	Equivalent to **split horizontal**.
@@ -79,20 +105,6 @@ Commands
 **splitv**::
 	Equivalent to **split vertical**.
 
-**floating_modifier** <modifier>::
-	When the _modifier_ key is held down, you may use left click to drag floating
-	windows, and right click to resize them.
-
-**fullscreen**::
-	Toggles fullscreen status for the focused view.
-
-**gaps** <amount>::
-	Adds _amount_ pixels between each view, and around each output.
-
-**gaps** <inner|outer> <amount>::
-	Adds _amount_ pixels as an _inner_ or _outer_ gap, where the former affects
-	spacing between views and the latter affects the space around each output.
-
 **workspace** <name>::
 	Switches to the specified workspace.
 

sway/commands.c

@@ -364,6 +364,66 @@ static bool cmd_move(struct sway_config *config, int argc, char **argv) {
 	return true;
 }
 
+static bool cmd_output(struct sway_config *config, int argc, char **argv) {
+	if (!checkarg(argc, "output", EXPECTED_AT_LEAST, 1)) {
+		return false;
+	}
+
+	struct output_config *output = calloc(1, sizeof(struct output_config));
+	output->x = output->y = output->width = output->height = -1;
+	output->name = strdup(argv[0]);
+
+	// TODO: atoi doesn't handle invalid numbers
+
+	int i;
+	for (i = 1; i < argc; ++i) {
+		if (strcasecmp(argv[i], "resolution") == 0 || strcasecmp(argv[i], "res") == 0) {
+			char *res = argv[++i];
+			char *x = strchr(res, 'x');
+			int width = -1, height = -1;
+			if (x != NULL) {
+				// Format is 1234x4321
+				*x = '\0';
+				width = atoi(res);
+				height = atoi(x + 1);
+				*x = 'x';
+			} else {
+				// Format is 1234 4321
+				width = atoi(res);
+				res = argv[++i];
+				height = atoi(res);
+			}
+			output->width = width;
+			output->height = height;
+		} else if (strcasecmp(argv[i], "position") == 0 || strcasecmp(argv[i], "pos") == 0) {
+			char *res = argv[++i];
+			char *c = strchr(res, ',');
+			int x = -1, y = -1;
+			if (c != NULL) {
+				// Format is 1234,4321
+				*c = '\0';
+				x = atoi(res);
+				y = atoi(c + 1);
+				*c = ',';
+			} else {
+				// Format is 1234 4321
+				x = atoi(res);
+				res = argv[++i];
+				y = atoi(res);
+			}
+			output->x = x;
+			output->y = y;
+		}
+	}
+
+	list_add(config->output_configs, output);
+
+	sway_log(L_DEBUG, "Configured output %s to %d x %d @ %d, %d",
+			output->name, output->width, output->height, output->x, output->y);
+
+	return true;
+}
+
 static bool cmd_gaps(struct sway_config *config, int argc, char **argv) {
 	if (!checkarg(argc, "gaps", EXPECTED_AT_LEAST, 1)) {
 		return false;
@@ -637,6 +697,7 @@ static struct cmd_handler handlers[] = {
 	{ "layout", cmd_layout },
 	{ "log_colors", cmd_log_colors },
 	{ "move", cmd_move},
+	{ "output", cmd_output},
 	{ "reload", cmd_reload },
 	{ "resize", cmd_resize },
 	{ "set", cmd_set },

sway/config.c

@@ -22,6 +22,7 @@ void config_defaults(struct sway_config *config) {
 	config->modes = create_list();
 	config->cmd_queue = create_list();
 	config->workspace_outputs = create_list();
+	config->output_configs = create_list();
 	config->current_mode = malloc(sizeof(struct sway_mode));
 	config->current_mode->name = NULL;
 	config->current_mode->bindings = create_list();
@@ -60,6 +61,7 @@ void free_config(struct sway_config *config) {
 		free(sym->value);
 	}
 	free_flat_list(config->symbols);
+	free_flat_list(config->output_configs);
 }
 
 static const char *search_paths[] = {

sway/container.c

@@ -55,13 +55,31 @@ static void free_swayc(swayc_t *cont) {
 // New containers
 
 swayc_t *new_output(wlc_handle handle) {
-	const struct wlc_size* size = wlc_output_get_resolution(handle);
+	const struct wlc_size *size = wlc_output_get_resolution(handle);
 	const char *name = wlc_output_get_name(handle);
 	sway_log(L_DEBUG, "Added output %lu:%s", handle, name);
 
+	struct output_config *oc ;
+	int i;
+	for (i = 0; i < config->output_configs->length; ++i) {
+		oc = config->output_configs->items[i];
+		if (strcasecmp(name, oc->name) == 0) {
+			sway_log(L_DEBUG, "Matched output config for %s", name);
+			break;
+		}
+		oc = NULL;
+	}
+
 	swayc_t *output = new_swayc(C_OUTPUT);
-	output->width = size->w;
-	output->height = size->h;
+	if (oc && oc->width != -1 && oc->height != -1) {
+		output->width = oc->width;
+		output->height = oc->height;
+		struct wlc_size new_size = { .w = oc->width, .h = oc->width };
+		wlc_output_set_resolution(handle, &new_size);
+	} else {
+		output->width = size->w;
+		output->height = size->h;
+	}
 	output->handle = handle;
 	output->name = name ? strdup(name) : NULL;
 	output->gaps = config->gaps_outer + config->gaps_inner / 2;
@@ -71,7 +89,6 @@ swayc_t *new_output(wlc_handle handle) {
 	// Create workspace
 	char *ws_name = NULL;
 	if (name) {
-		int i;
 		for (i = 0; i < config->workspace_outputs->length; ++i) {
 			struct workspace_output *wso = config->workspace_outputs->items[i];
 			if (strcasecmp(wso->output, name) == 0) {