[QGIS-trac] [Quantum GIS] #2597: Adding layer is changed the last extent

[Quantum GIS]

#2597: Adding layer is changed the last extent
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   Reporter:  aperi2007                         |              Owner:  nobody       
       Type:  bug                               |             Status:  new          
   Priority:  major: does not work as expected  |          Milestone:  Version 1.5.0
  Component:  MapCanvas                         |            Version:  HEAD         
   Keywords:                                    |   Platform_version:  7            
   Platform:  Windows                           |           Must_fix:  No           
Status_info:  0                                 |  
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 Starting from a canvas with some layer and an extent of details.
 If a new layer is added, the canvas go to full-extent drawing all in
 canvas.
 The canvas is redra with a full-extent of layers.
 This is time consuming for big layers, but the bigger problem is that the
 last extent is lost so is pretty difficult find the original extent when
 the new layer was added.

 Some versione ago was possibile use the "last zoom" button to go to the
 original extent.
 Now that button is disabled when a new layer is added.

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Ticket URL: <https://trac.osgeo.org/qgis/ticket/2597>
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