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bug#26905: 25.2: MacOS: tooltips show in wrong display
From: |
Charles A. Roelli |
Subject: |
bug#26905: 25.2: MacOS: tooltips show in wrong display |
Date: |
Sat, 13 May 2017 11:02:04 +0200 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
If I remove the marked lines in compute_tip_xy:
if (INTEGERP (left) || INTEGERP (right))
*root_x = pt.x;
=> else if (pt.x + XINT (dx) <= 0)
=> *root_x = 0; /* Can happen for negative dx */
else if (pt.x + XINT (dx) + width
<= x_display_pixel_width (FRAME_DISPLAY_INFO (f)))
/* It fits to the right of the pointer. */
*root_x = pt.x + XINT (dx);
else if (width + XINT (dx) <= pt.x)
/* It fits to the left of the pointer. */
*root_x = pt.x - width - XINT (dx);
else
/* Put it left justified on the screen -- it ought to fit that
way. */
*root_x = 0;
Then the problem is gone.
I notice now, though, that the tooltip can end up partially offscreen,
both with and without the above change (e.g. when you create a tooltip
with the mouse pointer at the right edge of the primary monitor). IIRC
on GNU/Linux the tooltip is adjusted to fit on screen. Maybe this
adjustment works on newer versions of OS X?