For some operations it is necessary to process all objects in an expo.
Provide an iterator to handle this.
Signed-off-by: Simon Glass <sjg@chromium.org>
Add a new 'cedit' command which allows editing configuration using an
expo. The configuration items appear as menus on the display.
This is extremely basic, only supporting menus and not providing any way
to load or save the configuration.
Signed-off-by: Simon Glass <sjg@chromium.org>
It looks better if menus have a bit of an inset, rather than be drawn hard
up against the background. Also, menu items look better if they have a bit
of spacing between them.
Add theme options for these and implement the required changes.
Signed-off-by: Simon Glass <sjg@chromium.org>
In 'popup' mode, the expo allows moving around the objects in a scene.
When 'enter' is pressed on a menu, it opens and the user can move around
the items in the menu.
Implement this using keypress handles and actions.
Signed-off-by: Simon Glass <sjg@chromium.org>
When a menu is opened, it must be displayed over all other objects in
the scene, so that all its items are visible.
Handle this by drawing the menu object a second time, after all other
objects have been drawn. Draw all of the objects which are dependent
on the menu object.
Signed-off-by: Simon Glass <sjg@chromium.org>
When a popup menu is closed it shows only the selected item. When it is
open it shows a background and all items, with a highlight that can be
moved between the items.
Add the drawing logic for this.
Signed-off-by: Simon Glass <sjg@chromium.org>
It is a pain to manually set the fonts of all objects to be consistent.
Some spacing settings are also better set globally than by manually
positioning each object.
Add a 'theme' to the expo, to hold this information. For now it includes
only the font size.
Signed-off-by: Simon Glass <sjg@chromium.org>
Provide a way to set the full dimensions of objects, i.e. including the
width and height.
For menus, calculate the bounding box of all objects in the menu. Set all
labels to be the same size, so that highlighting works correct, once
implemented.
Signed-off-by: Simon Glass <sjg@chromium.org>
Rather than estimating, measure the text accurately, using the new
vidconsole feature. This allows accurate placement of objects.
Signed-off-by: Simon Glass <sjg@chromium.org>
We currently have just a 'hide' property for each object. In preparation
for adding more properties, convert the struct to use a flags value,
instead of individual booleans. This is more extensible.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present objects only have a position so it is not possible to determine
the amount of space they take up on the display.
Add width and height properties, using a struct to keep all the dimensions
together.
For now this is not used. Future work will set up these new properties.
Signed-off-by: Simon Glass <sjg@chromium.org>
Provide a way to set this value so that it is easy to separate the
statically allocated IDs (generated by the caller) from those
generated dynamically by expo itself.
Signed-off-by: Simon Glass <sjg@chromium.org>
This feature is different enough from bootstd that it probably deserves
its own log category. It cannot use a uclass since it is not a device.
Add a new category.
Signed-off-by: Simon Glass <sjg@chromium.org>
This should ideally be done once after all scene changes have been made.
Require an explicit call when everything is ready.
Always arrange after a key it sent, just for convenience.
Signed-off-by: Simon Glass <sjg@chromium.org>
This is easier to deal with if it uses the existing string handling,
since we will be able to use translations, etc. in the future.
Update it to use an ID instead of a string.
Signed-off-by: Simon Glass <sjg@chromium.org>
A scene is a single screen within an expo. It is possible to move between
scenes but only one can be displayed at once.
Add a basic implementation.
Signed-off-by: Simon Glass <sjg@chromium.org>
