At present we only support a single menu, so all that can be pointed to
is the current menu item. Rename this action so that we can also add
an action for pointing to an object. This will allow cycling through
the objects in a scene.
Signed-off-by: Simon Glass <sjg@chromium.org>
At present only a single menu is supported. All items are shown and a
pointer object points to the current item.
Add support for multiple menus, one of which is highlighted, indicated
by the highlight_id property in the scene.
The highlighted menu item has a SCENEOF_POINT flag, indicating that it
is currently pointed to.
The popup menu is normally closed, in which case it shows only the
current menu item. When it is opened, it shows all items, allowing the
user to select one.
Rather than requiring the menu item to have a description, require it to
have a label. Use the label (only) for the popup menu.
With this, most of the drawing and layout logic is complete.
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>
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 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>
An expo is a way of presenting and collecting information from the
user. It consists of a collection of 'scenes' of which only one is
presented at a time. An expo is typically used to show a boot menu
and allow settings to be changed.
One created, the same expo can be automatically presented in graphical
form using a vidconsole, or in text form on a serial console.
Add an initial implementation of the expo itself. Supports for scenes
and objects is provided later.
Signed-off-by: Simon Glass <sjg@chromium.org>
