[Cartoweb-dev] [Bug 1733] New: Pdf export preview can not be moved after pan

[bugzilla-daemon at bugzilla.maptools.org]

http://bugzilla.maptools.org/show_bug.cgi?id=1733

           Summary: Pdf export preview can not be moved after pan
           Product: CartoWeb
           Version: unspecified
          Platform: PC
        OS/Version: Windows XP
            Status: NEW
          Severity: major
          Priority: P2
         Component: Plugins
        AssignedTo: cartoweb-dev at lists.maptools.org
        ReportedBy: ml.dje at geocontent.de


If the pdf preview is activated after a pan operation (using the "hand" tool not
the pan buttons around the map), the pdf_overview rectangle can not be moved
anymore. This issue can easily be reproduced with the demoCW3 project:

1. Zoom into the map somewhere
2. Activate pdfrotate -> the rectangle can be moved
3. Activate the pan tool and move the map a bit
4. Activate pdfrotate again -> the rectangle can not be moved or rotated

Changing scale, paper format, etc. still work. There are no JavaScript errors.
But, if you follow the same procedure skipping step 2, the following error occurs:

dFeature has no properties
cartoweb3/js/dhtmlAPI.js (Line 1754)

Further, if the pan tool is just activated, but the map is not moved, pdfrotate
still works afterwards.

I spent several hours trying to find the reason, but was unsuccessful. There is
only one thing that I could figure out:

It seems that the pdfrotate event handlers are not reset correctly after an
operation. As long as pan has not been used, all event handlers defined in
RotateFeatureTool (dhtmlPdf.js) are called as expected. After the first pan
operation, RotateFeatureTool.prototype.onMouseUp is the only handler that is
still called.



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