Feature request #1786

SVG symbols don't highlight when selected

Added by Mike Taves over 15 years ago. Updated almost 12 years ago.

Status:Closed
Priority:Low
Assignee:-
Category:Map Canvas
Pull Request or Patch supplied:No Resolution:fixed
Easy fix?:No Copied to github as #:11846

Description

Selecting points from the GIS canvas works for built-in symbols (circle, etc.), where the symbol is "highlighted" or masked by the selection colour, which is in Settings > Options... dialog (default is cyan).

However, if the point symbology uses SVG symbols, the symbols are no longer highlighted in the map canvas if selected. This makes tasks, such as deleting, a bit troublesome.

History

#1 Updated by Giovanni Manghi over 15 years ago

I maybe be wrong, but I don't think that is the prerogative of any gis desktop program to create (on the fly?) an "alternate" version of an svg symbol in order to see it highlighted when selected. As a matter of fact I can't recall any program that do that, but maybe there is room for an enhancement.

Let see what other people (devs) think about his matter.

#2 Updated by Martin Dobias over 15 years ago

It is possible to "highlight" svg symbol: once the symbol is rendered into an image, the image can be colorized with selection color.

#3 Updated by Giovanni Manghi over 15 years ago

ok. As supposed, I was wrong.

#4 Updated by rtb - about 15 years ago

I have a case where Quantum shows an electrical network with devices represented by SVG symbols. It's imperative to know which symbols are selected and which are not. I'd like to propose a couple of alternatives besides "re-coloring" the SVG symbol.

One approach follows the lead of the identify features tool and simply places a marker on top of selected symbols. I've managed a work-around in a Python plugin by catching the map canvas selectionChanged() signal and doing just that: I maintain a list of markers (!QgsVertexMarker) designating SVG symbols currently selected.

A second approach would add an option in the symbology tab for users to specify the symbol to represent selected features.

#5 Updated by luca76 - almost 15 years ago

Confirmed here.

The simple "point" features are highlighted, while the SVG symbols not.

#6 Updated by Martin Dobias over 14 years ago

Fixed for new symbology in 8c7a31d3 (SVN r13323).

#7 Updated by Giovanni Manghi about 13 years ago

  • Target version changed from Version 1.7.0 to Version 1.7.4

#8 Updated by Giovanni Manghi over 12 years ago

  • Target version changed from Version 1.7.4 to Version 2.0.0

#9 Updated by Pirmin Kalberer about 12 years ago

  • Target version changed from Version 2.0.0 to Future Release - Nice to have

#10 Updated by Giovanni Manghi almost 12 years ago

  • Pull Request or Patch supplied set to No
  • Status changed from Open to Closed
  • Assignee deleted (nobody -)
  • Resolution set to fixed

In master they have now the selection color around.

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