[Kst] [Bug 111241] New: Ability to have guide lines always drawn when in 'x mouse zoom' or 'y mouse zoom'

[Matthew Truch]

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http://bugs.kde.org/show_bug.cgi?id=111241         
           Summary: Ability to have guide lines always drawn when in 'x
                    mouse zoom' or 'y mouse zoom'
           Product: kst
           Version: unspecified
          Platform: unspecified
        OS/Version: Linux
            Status: NEW
          Severity: wishlist
          Priority: NOR
         Component: general
        AssignedTo: kst kde org
        ReportedBy: matt truch net


Version:           1.2.0_devel (using KDE KDE 3.4.0)
OS:                Linux

It would be convienient to have (as a configurable option, in Configure Kst) the guide lines that are drawn when you are in the process of a zoom in x mouse zoom or y mouse zoom to be drawn all the time when you are in one of those zoom modes, not just during an active zoom process.  

Motivation: I believe that most kst users use xy mouse zoom mode as the standard (default) operating mode, and only enter x or y zoom modes temporarily and through the shift of ctrl shortcuts.  Currently, in x or y zoom modes, as soon as you start a zoom a horizontal or vertical dotted line appears on the plot to indicate one of the new boundaries, and another one appears and follows the mouse to help the user better position the second boundary.  If the dotted line that follows the mouse always appears (and follows the mouse) when in x or y zoom mode, the user will be able to easily (and more accuratly) place both boundary points exactly where they want to, not just the second.

Desired behavior:  When in xy mouse mode, nothing changes from the current behavior.  When the user enters x mouse zoom (for example) the vertical dotted line that follows the mouse instantly appears.  The user can then accuratly place the first boundary point, click, and then set the second as in the current behavior.  As soon as the user returns to xy mouse zoom, the dotted line that follows the mouse disappears.