I apologize if this question was already answered, but I found a lot of examples on how to set the QGIS maptool in a application from scratch, but not inside QGIS (in a plugin).
In the examples I found, the author creates a toolbar icon, an action and a custom QgsMapTool action.
What I want to do, is something (that I thought it was) more simple: - I want to set the canvas maptool to be the QGIS native zoom in (QgsMapToolZoom); basically the same that happens, when the user clicks the zoom in icon on the QGIS toolbar; Note that I don't want to zoom in like this:
But I want to set the current mapTool to zoom in, and let the user zoom instead.
I implemented it as follows:
canvas=self.eaf.iface.mapCanvas() zoomTool=QgsMapToolZoom(canvas, False) canvas.setMapTool(zoomTool)
However this fails. QGIS unsets the current maptool (lets say, for instance pan) and sets a void maptool (represented by an arrow cursor and no action) I added this piece of code, after initializing the zoom tool:
zoomTool=QgsMapToolZoom(canvas, False) act=zoomTool.action() print act
And found out that the action of the tool is empty (None). I don't want to start an action, because I would like to use the native QGIS actions that are associated to the QGIS toolbar icons. How can I access the native QGIS zoom action and force my maptool to use it?
Thanks in advance for your time