At a dialog I try to change a font dynamically. "Dynamically" means, changes of the font name and size by changes of related controls should affect the font of a static text (or edit field) immediatetly – not only if the values are stored at preferences and read by a subsequent call of the dialog. A test script:
***
local LrDialogs = import 'LrDialogs'
local LrView = import 'LrView'
local LrFunctionContext = import 'LrFunctionContext'
local LrBinding = import 'LrBinding'
local LrPrefs = import 'LrPrefs'
local LrLogger = import 'LrLogger'
local log = LrLogger('TestLogger')
log:enable('logfile')
local f = LrView.osFactory()
local bind = LrView.bind
local prefs = LrPrefs.prefsForPlugin()
local text = 'Lorem ipsum dolor sit amet, consectetur adipisici elit, ...'
LrFunctionContext.callWithContext ('showPreview', function(context)
local props = LrBinding.makePropertyTable(context)
props.font_name = prefs.fontName or 'Courier'
props.font_size = prefs.fontSize or 12
log:trace('Read: ' .. props.font_name .. '/' .. props.font_size)
local previewText = f:static_text {
title = text,
font = {
name = props.font_name,
size = tonumber(props.font_size)
},
}
local function updateFont()
previewText.font = {
name = props.font_name,
size = tonumber(props.font_size),
}
log:trace('Change: ' .. props.font_name .. '/' .. props.font_size)
end
props:addObserver('font_name', updateFont)
props:addObserver('font_size', updateFont)
local contents = f:column {
spacing = f:control_spacing(),
bind_to_object = props,
previewText, -- defined above
f:separator { fill_horizontal = 1 },
f:row {
f:static_text { title = 'Font Name:' },
f:combo_box {
value = bind 'font_name',
width_in_chars = 10,
immediate = true,
items = {
'Courier', -- Mac
'Courier New', -- Win
'Lucida Console', -- Win
'Monaco', -- Mac
},
},
f:static_text { title = 'Font Size:' },
f:combo_box {
value = bind 'font_size',
width_in_chars = 2,
immediate = true,
precision = 0,
items = { 10, 12, 14, 16, },
},
},
}
LrDialogs.presentModalDialog({
title = 'Font Change Test',
contents = contents,
})
log:trace('Save: ' .. props.font_name .. '/' .. props.font_size)
prefs.fontName = props.font_name
prefs.fontSize = props.font_size
end)
***
The problem is: It works on macOS, not on Windows.
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