Here are some fun gestures you can use in iPhoto that I couldn't find documented anywhere. When in edit mode, two finger gestures do some nifty things! First, open a photo in iPhoto and enter Edit mode.
While in Straighten Mode:
You can fine tune the amount of tilt using the 'rotate' gesture in either direction. Rotate Left to decrease the angle, Rotate Right increases the angle (it feels backwards whenever I do it).
While in Crop mode (with constrain turned on):
Suppose you set your right thumb and pointer on the trackpad (thumb bottom left quadrant, pointer top right).
[crarko adds: I haven't tested this one. I don't have one of the fancy newer trackpads that supports these gestures. Plus I've always used an external editor with iPhoto anyway.]
While in Straighten Mode:
You can fine tune the amount of tilt using the 'rotate' gesture in either direction. Rotate Left to decrease the angle, Rotate Right increases the angle (it feels backwards whenever I do it).
While in Crop mode (with constrain turned on):
- If you pinch inwards the crop frame gets smaller and retains its shape.
- If you pinch outwards the crop frame gets bigger and retains its shape.
- If you keep both fingers in approximately the same configuration and move them about, the entire crop frame will move without changing size (unless you run into an edge, in which case the crop frame will shrink if you continue to push it against the edge).
Suppose you set your right thumb and pointer on the trackpad (thumb bottom left quadrant, pointer top right).
- If you move just your thumb (still in the bottom left quadrant) then just the bottom left handle moves in the same manner.
- If you move just that pointer finger (in the top right) and the just top right handle moves.
- Move both simultaneously and both handles move.
[crarko adds: I haven't tested this one. I don't have one of the fancy newer trackpads that supports these gestures. Plus I've always used an external editor with iPhoto anyway.]
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