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calibrator: Use G_STMT_START/END on SWAP define

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And let it pass the type, so it can be used on other than integers.

https://bugzilla.gnome.org/show_bug.cgi?id=732442
This commit is contained in:
Carlos Garnacho 2014-07-01 16:58:42 +02:00
parent ea66f828eb
commit 4a9bde0679
1 changed files with 8 additions and 5 deletions
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13
panels/wacom/calibrator/calibrator.c
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@ -25,7 +25,10 @@
#include "calibrator.h"
#define SWAP(x,y) do { int t; t=(x); x=(y); y=t; } while (0)
#define SWAP(valtype,x,y) \
G_STMT_START { \
valtype t; t = (x); x = (y); y = t; \
} G_STMT_END
/* reset clicks */
void
@ -142,8 +145,8 @@ finish (struct Calib *c,
swap_xy = (abs (c->clicked_x [UL] - c->clicked_x [UR]) < abs (c->clicked_y [UL] - c->clicked_y [UR]));
if (swap_xy)
{
SWAP(c->clicked_x[LL], c->clicked_x[UR]);
SWAP(c->clicked_y[LL], c->clicked_y[UR]);
SWAP(int, c->clicked_x[LL], c->clicked_x[UR]);
SWAP(int, c->clicked_y[LL], c->clicked_y[UR]);
}
/* Compute min/max coordinates. */
@ -168,8 +171,8 @@ finish (struct Calib *c,
/* If x and y has to be swapped we also have to swap the parameters */
if (swap_xy)
{
SWAP(axis.x_min, axis.y_max);
SWAP(axis.y_min, axis.x_max);
SWAP(int, axis.x_min, axis.y_max);
SWAP(int, axis.y_min, axis.x_max);
}
*new_axis = axis;