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Add relative output transform 

This commit enhances the output transform
command with options for a relative transform,
i.e. the provided transform will be applied as
an offset to the current transform. Append
`clockwise` to rotate clockwise from the current
rotation, or `anticlockwise` to rotate in the
opposite direction.

For example, if the output LVDS-1 is rotated
90 degrees clockwise, the command
`output LVDS-1 transform 90 clockwise`
will rotate the display to 180 degrees.
All transform options are supported,
including flipped transforms.

Relative transforms can only be applied to
a single output and cannot be used with
a wildcard (*) output specifier.
This commit is contained in:
Ryan Walklin 2018-10-31 21:06:49 +00:00
parent 994c35e375
commit 5032acb7a5
2 changed files with 40 additions and 13 deletions
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46
sway/commands/output/transform.c
View File

@ -1,6 +1,8 @@
#include <string.h>
#include "sway/commands.h"
#include "sway/config.h"
#include "log.h"
#include "sway/output.h"
struct cmd_results *output_cmd_transform(int argc, char **argv) {
if (!config->handler_context.output_config) {
@ -10,30 +12,52 @@ struct cmd_results *output_cmd_transform(int argc, char **argv) {
return cmd_results_new(CMD_INVALID, "output",
"Missing transform argument.");
}
struct output_config *output = config->handler_context.output_config;
enum wl_output_transform transform;
if (strcmp(*argv, "normal") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_NORMAL;
transform = WL_OUTPUT_TRANSFORM_NORMAL;
} else if (strcmp(*argv, "90") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_90;
transform = WL_OUTPUT_TRANSFORM_90;
} else if (strcmp(*argv, "180") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_180;
transform = WL_OUTPUT_TRANSFORM_180;
} else if (strcmp(*argv, "270") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_270;
transform = WL_OUTPUT_TRANSFORM_270;
} else if (strcmp(*argv, "flipped") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_FLIPPED;
transform = WL_OUTPUT_TRANSFORM_FLIPPED;
} else if (strcmp(*argv, "flipped-90") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
transform = WL_OUTPUT_TRANSFORM_FLIPPED_90;
} else if (strcmp(*argv, "flipped-180") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
transform = WL_OUTPUT_TRANSFORM_FLIPPED_180;
} else if (strcmp(*argv, "flipped-270") == 0) {
output->transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
transform = WL_OUTPUT_TRANSFORM_FLIPPED_270;
} else {
return cmd_results_new(CMD_INVALID, "output",
"Invalid output transform.");
}
struct output_config *output = config->handler_context.output_config;
config->handler_context.leftovers.argc = argc - 1;
config->handler_context.leftovers.argv = argv + 1;
if (argc > 1 &&
(strcmp(argv[1], "clockwise") == 0 || strcmp(argv[1], "anticlockwise") == 0)) {
if (!sway_assert(output->name != NULL, "Output config name not set")) {
return NULL;
}
if (strcmp(output->name, "*") == 0) {
return cmd_results_new(CMD_INVALID, "output",
"Cannot apply relative transform to all outputs.");
}
struct sway_output *s_output = output_by_name(output->name);
if (s_output == NULL) {
return cmd_results_new(CMD_INVALID, "output",
"Cannot apply relative transform to unknown output %s", output->name);
}
if (strcmp(argv[1], "anticlockwise") == 0) {
transform = wlr_output_transform_invert(transform);
}
struct wlr_output *w_output = s_output->wlr_output;
transform = wlr_output_transform_compose(w_output->transform, transform);
config->handler_context.leftovers.argv += 1;
config->handler_context.leftovers.argc -= 1;
}
output->transform = transform;
return NULL;
}

7
sway/sway-output.5.scd
View File

@ -59,10 +59,13 @@ must be separated by one space. For example:
Sets the background of the given output to the specified color. _color_
should be specified as _#RRGGBB_. Alpha is not supported.
*output* <name> transform <transform>
*output* <name> transform <transform> [clockwise|anticlockwise]
Sets the background transform to the given value. Can be one of "90", "180",
"270" for rotation; or "flipped", "flipped-90", "flipped-180", "flipped-270"
to apply a rotation and flip, or "normal" to apply no transform.
to apply a rotation and flip, or "normal" to apply no transform. If a single
output is chosen and a rotation direction is specified
(_clockwise_ or _anticlockwise_) then the transform is added or
subtracted from the current tranform.
*output* <name> disable|enable
Enables or disables the specified output (all outputs are enabled by