| [riena-dev] Do we need a MessageBoxRidget? |
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Hi everybody! Should there be a Ridget that allows to show standard
messages like information->ok or question->yes/no? A Ridget delegates to
an actual UI-widget but offers a higher level of abstraction and is independent
of the UI-toolkit (SWT). A MessageBoxRidget could delegate to a
org.eclipse.swt.widgets.MessageBox or a
org.eclipse.jface.dialogs.MessageDialog. Problem The SWT-widgets MessageBox and MessageDialog are different
from the widgets usually bound to Ridgets insofar as they appear only when
needed. Besides a method to show the widget the Ridget should have methods to
set the message, the title, the type/icon and the combination of buttons. When
using a MessageDialog all this information is set in the constructor. When
using a MessageBox the type/icon and the buttons are part of the style that can
also be set only in the constructor. So both widgets can't be sufficiently
modified by the Ridget. How it could be done There could be a special Riena MessageBox-widget that is
bound to the MessageBoxRidget. The Riena MessageBox-widget would use a
org.eclipse.swt.widgets.MessageBox or a org.eclipse.jface.dialogs.MessageDialog
to show the actual message dialog. The MessageBox-widget would be SWT-specific
while the MessageBoxRidget would offer an SWT-independent interface
IMessageBoxRidget. Pros - would allow a controller that does not depend on a
specific UI-toolkit to show messages - would ensure uniform appearance of messages throughout an
application (when consistently used) Cons - yet another way to show messages beside MessageBox,
MessageDialog, ErrorDialog,... - MessageDialog already offers a convenient way to show
standard messages (openInformation(..), openQuestion(..), etc.) so that the
Ridget would not add much extra functionality Any ideas or comments? Greetings, Carsten |