3.2.1 Common features
All browsers share a similar appearance and some
behavior, such as project operations and list
filtering. Figure 3–21
Graph Browser as an example of the general browser window layout. In all
browsers, the left-hand list shows all the projects
are currently opened in the MetaEdit+ client. Highlighted project names (like
‘Digital Watch’ in Figure
) indicate which of the projects are currently selected for
display in this browser. The middle and right-hand lists in the browser window
show either the types or instances of design elements in the selected projects.
Note that selecting a project only affects what is visible in this browser, and
does not actually open or close any project.
Figure 3–21. An example of a browser window.
Project management operations can be accessed via the project
list’s pop-up menu. To open a project:
the project list’s pop-up menu with the right mouse
Open... from the menu.|
As a result
a dialog opens with a list of possible projects to be opened (Figure 3–22
). The projects available
are those to which you have access rights, and which are not yet open. If a
project has not yet been explicitly opened, but you have already referenced some
data there (often graph types), the project will be marked with an asterisk
‘*’. Opening projects may take a little while, depending on their
Figure 3–22. A dialog for selecting projects to be opened.
you can close projects by
the project list’s pop-up menu and selecting them in the list dialog that
opens. Note that the current selections in the projects list are not related to
which projects will be closed. If you close all projects, you will be prompted
to open another project. If you close the default project, you will be prompted
to choose another project as the default. After closing projects, any types in
those projects will still be loaded; to clear them, close any windows using them
and commit or abandon the current transaction. To close a project that is not
explicitly opened, first open it explicitly.
You can also create new projects by selecting New...
from the project list’s pop-up menu. Check with your system
administrator about project creation and naming conventions. Note that you must
remember to set the new project as default in order to add graphs and related
design information to it.
It is also possible to rename and delete projects from the
pop-up menu, and set users’ modeling
them, but this requires system administrator privileges. For more information
about renaming and deleting projects, and project modeling rights, please refer
to the ‘MetaEdit+ System Administrator
The default project field shows in which project new graphs
will be stored. New objects, graph representations and other design elements are
automatically stored into the same project as their graphs.
Only one project can be set as the default (e.g.
‘Digital Watch’ in Figure
) but multiple projects can be open for example for viewing and
reuse purposes. Thus, the default project
generally the project that you are actually working on: i.e. in which you add
You can set the default project by choosing the project
name from the Default
project pull-down list under the project list.
Projects where you do not have modeling rights
in the list in italics
To help browsing when there are many elements (types or
instances) shown in the middle and right-hand lists, two additional fields at
the bottom of the window can be used to set filters
the lists. By typing ‘T*’ in the field below the Graphs list (Figure 3–21
), you can filter the
list to show only instances starting with a capital letter T. Wildcards can be
used: ‘*’ to represent any sequence of characters, and
‘#’ to represent any single character.
In hierarchical views, the parent items of items matching
the filter will also be displayed, to maintain the hierarchy. E.g. in the IoT
project Graph Browser showing all subgraphs, ‘*Purpose’ would show
all graphs of type Thingsee Purpose, plus any Thingsee Profile graphs that are
A filter can contain multiple conditions, separated with
‘|’ for OR or prefixed with ‘^’ for AND-NOT. First the
tree is built with all its items, and from that only items matching the OR
conditions are included (along with any necessary parent items recursively),
then any items matching AND-NOT conditions will be excluded (along with all
their child items recursively). E.g. in the IoT project Graph Browser showing
all subgraphs, ‘*Purpose^Boat*’ would show all graphs of type
Thingsee Purpose, except those which are children of ‘Boat: Thingsee
that where the tree is built from data that is not a strict tree, the same
element can appear as multiple items in the tree. Each such item is treated
separately here: excluding or including on the basis of being a child or parent
item only affects that particular item in the tree, and items for the same
element may be included or excluded differently elsewhere in the
Expanding and contracting the hierarchy
You can expand branches individually in the middle
list’s hierarchy tree view by clicking their + icon, or expand the whole
tree by pressing the Expand
button (Figure 3–23
) that is located next to
Figure 3–23. Expand button.
You can also expand the
currently selected branch with the ‘+’ key on the numeric keypad,
contract it with ‘-’, or fully expand it with
Press the Expand
button with Shift held down to
select a specific number of hierarchy levels to be