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* Allow the scrolling steps to have values lower than 1.

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git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33467 a95241bf-73f2-0310-859d-f6bbb57e9c96
This commit is contained in:
Axel Dörfler 2009-10-06 14:26:11 +00:00
parent df78ef39ab
commit a75c97c3ad
1 changed files with 19 additions and 8 deletions
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27
src/add-ons/kernel/bus_managers/ps2/movement_maker.c
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@ -274,17 +274,28 @@ get_scrolling(movement_maker *move, uint32 posX, uint32 posY)
get_raw_movement(move, posX, posY);
compute_acceleration(move, move->scroll_acceleration);
move->scrolling_x += move->xDelta;
move->scrolling_y += move->yDelta;
if (move->scrolling_xStep > 0) {
move->scrolling_x += move->xDelta;
stepsX = make_small(move->scrolling_x / move->scrolling_xStep);
stepsY = make_small(move->scrolling_y / move->scrolling_yStep);
stepsX = make_small(move->scrolling_x / move->scrolling_xStep);
move->scrolling_x-= stepsX * move->scrolling_xStep;
move->scrolling_y-= stepsY * move->scrolling_yStep;
move->scrolling_x -= stepsX * move->scrolling_xStep;
move->xDelta = stepsX;
} else {
move->scrolling_x = 0;
move->xDelta = 0;
}
if (move->scrolling_yStep > 0) {
move->scrolling_y += move->yDelta;
move->xDelta = stepsX;
move->yDelta = -1 * stepsY;
stepsY = make_small(move->scrolling_y / move->scrolling_yStep);
move->scrolling_y -= stepsY * move->scrolling_yStep;
move->yDelta = -1 * stepsY;
} else {
move->scrolling_y = 0;
move->yDelta = 0;
}
}