picoe/Eto

Allow a Control to be positioned directly in its parent Container, making PixelLayout obsolete

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#158 ouverte le 20 nov. 2013

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Description

Problem:

  1. It is cumbersome to create a PixelLayout just to position a control.
  2. PixelLayout adds a new window to the container hierarchy, obscuring the content beneath and requiring event bubbling to register mouse clicks, etc.
  3. It isn't possible to explicitly position some controls while using a table layout for the rest of the Container's children.

Solution: These methods and properties allow a Control to be added and positioned directly on its parent:

  1. Container.Add(Control child): adds an absolutely positioned child
  2. Container.Remove(Control child): removes an absolutely positioned child
  3. Control.Location {get; set;} : The setter is new. Sets the position of this Control in its parent. This Control must have been added using Add.

Implementation Notes: Curtis mentioned GTK being problematic in that it required an explicit window. However, this is no longer the case, GTK.Fixed supports a windowless mode (HasWindow = false) and in fact Eto currently uses this mode.

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