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Make get_output_next() work with non-aligned RandR setups (+test) (Thanks Feh, swh, Moritz)

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A good visualization of the new algorithm is this:

           +--------+
           |        |
+--------+=|   S1   |========================
|        | |        |
|   S0   | +--------+
|        |         +--------+
+--------+=========|        |================
                   |   S2   | +--------+
                   |        | |        |
                   +--------+ |   S3   |
                              |        |
                              +--------+

When focus is on S0, 'focus output right' will first match S1 (the
closest output which overlaps in the highlighted area), then S2, but not
S3 (since S3 does not overlap into the highlighted area).

fixes #669
fixes #771
This commit is contained in:
Michael Stapelberg
2012-09-22 16:49:37 +02:00
parent 89ca48be20
commit 19883108a9
5 changed files with 242 additions and 76 deletions
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7
include/randr.h
View File

@ -18,6 +18,11 @@
TAILQ_HEAD(outputs_head, xoutput);
extern struct outputs_head outputs;
typedef enum {
CLOSEST_OUTPUT = 0,
FARTHEST_OUTPUT = 1
} output_close_far_t;
/**
* We have just established a connection to the X server and need the initial
* XRandR information to setup workspaces for each screen.
@ -96,6 +101,6 @@ Output *get_output_most(direction_t direction, Output *current);
* Gets the output which is the next one in the given direction.
*
*/
Output *get_output_next(direction_t direction, Output *current);
Output *get_output_next(direction_t direction, Output *current, output_close_far_t close_far);
#endif