49 lines
1.7 KiB
HTML
49 lines
1.7 KiB
HTML
---
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layout: default
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title: Which Regions Are Affected?
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menu_title: Affected Regions
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---
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<p>
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This section explains the rules used to decide which regions are affected
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by editing operations. You don't really have to understand them — hopefully
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things will Just Work — but it may be useful eventually to understand the rules.
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</p>
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<p>
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Editing operations in Ardour either operate on a single point in time
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(<kbd class="menu">Split</kbd> being the obvious example) or on two
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points (which can also be considered to be a range of sorts), <kbd
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class="menu">Separate</kbd> is a good example of this.
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</p>
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<p>
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Most operations will operate on the currently selected region(s), but if
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no regions are selected, the region that the mouse is in will be used
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instead. Single-point operations will generally pick a set of regions to
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use based on the following rules:
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</p>
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<ul>
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<li> If the edit point is `mouse', then
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<ul>
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<li>if the mouse is over a selected region, or no region, use all selected
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regions, or</li>
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<li>if the mouse is over an unselected region, use just that region.</li>
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</ul>
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</li>
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<li> For all other edit points
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<ul>
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<li>
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use the selected regions <em>and</em> those that are both
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under the edit position <em>and</em> on a selected track,
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or on a track which is in the same active edit-enabled route group
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as a selected region.
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</li>
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</ul>
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</li>
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</ul>
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<p>
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The rationale here for the two different rules is that the mouse edit point
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is special in that its position indicates both a time and a track; the other
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edit points (Playhead,Marker) indicate a time only.
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</p>
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