@ -280,6 +280,11 @@ function MenuItem:init()
local mandatory_w = RenderText : sizeUtf8Text ( 0 , self.dimen . w , self.info_face , " " .. mandatory , true , self.bold ) . x
local max_item_height = self.dimen . h - 2 * self.linesize
local flag_fit = false
local flag_add_ellipsis = false
local num_lines , offset
local item_name_orig = nil
-- first: try to decrease number of lines in TextBoxWidget
-- this loop ends only when text fits or we have only one line of text
while true do
-- Free previously made widgets to avoid memory leaks
if item_name then
@ -293,34 +298,125 @@ function MenuItem:init()
bold = self.bold ,
fgcolor = self.dim and Blitbuffer.COLOR_DARK_GRAY or nil ,
}
if not item_name_orig then
-- remember original item_name
item_name_orig = item_name
offset = # item_name.charlist
end
local height = item_name : getSize ( ) . h
if height < max_item_height then -- we fit !
flag_fit = true
break
end
flag_add_ellipsis = true
num_lines = item_name : getAllLineCount ( )
if num_lines == 1 then -- widget doesn't fit and we have only one line of text
break
end
-- remove last line and try again to fit
offset = item_name.vertical_string_list [ num_lines ] . offset - 1
-- remove ending "\n" (new line) to prevent infinity loop
if item_name.charlist [ offset ] == " \n " then
offset = offset - 1
end
self.text = table.concat ( item_name.charlist , " " , 1 , offset )
end
-- second: decrease font size (we have now only one line)
while true and not flag_fit do
-- Free previously made widgets to avoid memory leaks
if item_name then
item_name : free ( )
end
self.font_size = self.font_size - 1
item_name = TextBoxWidget : new {
text = self.text ,
face = Font : getFace ( self.font , self.font_size ) ,
width = self.content_width - mandatory_w - state_button_width - text_mandatory_padding ,
alignment = " left " ,
bold = self.bold ,
fgcolor = self.dim and Blitbuffer.COLOR_DARK_GRAY or nil ,
}
local height = item_name : getSize ( ) . h
if height < max_item_height or flag_fit then -- we fit !
if height < max_item_height then -- we fit !
offset = # item_name.charlist
break
end
-- Don't go too low, and then decrease lines
if self.font_size <= 12 then
local line_height = height / # item_name.vertical_string_list -- should be an integer
local lines = math.floor ( max_item_height / line_height )
local offset
if item_name.vertical_string_list [ lines + 1 ] then
offset = item_name.vertical_string_list [ lines + 1 ] . offset - 2
else -- shouldn't happen, but just in case
offset = # item_name.charlist
-- if text is too height with that really small font we don't show text at all
-- this shouldn't happen
if self.font_size <= 8 then
item_name = TextBoxWidget : new {
text = " … " ,
face = Font : getFace ( self.font , self.font_size ) ,
width = self.content_width - mandatory_w - state_button_width - text_mandatory_padding ,
alignment = " left " ,
bold = self.bold ,
fgcolor = self.dim and Blitbuffer.COLOR_DARK_GRAY or nil ,
}
flag_add_ellipsis = false
break
end
end
-- add ellipsis when text was truncated
if flag_add_ellipsis then
local text_last_line
-- when lines is more than 1 we see only for last visible line
if num_lines > 1 then
local offset_prev = item_name_orig.vertical_string_list [ num_lines - 1 ] . offset
text_last_line = table.concat ( item_name_orig.charlist , " " , offset_prev , offset )
else
text_last_line = self.text
end
local text_size = RenderText : sizeUtf8Text ( 0 , self.content_width ,
Font : getFace ( self.font , self.font_size ) , text_last_line , true , self.bold ) . x
local ellipsis_size = RenderText : sizeUtf8Text ( 0 , self.content_width ,
Font : getFace ( self.font , self.font_size ) , " … " , true , self.bold ) . x
local text_size_increase = text_size
local max_offset = # item_name_orig.charlist
-- try to add chars to better align
while item_name.width > text_size_increase + ellipsis_size and offset < max_offset
and item_name_orig.charlist [ offset ] ~= " \n " do
text_size_increase = text_size_increase + item_name_orig : getCharWidth ( offset + 1 )
if text_size_increase + ellipsis_size < item_name.width then
-- add one char to text
offset = offset + 1
end
local ellipsis_size = RenderText : sizeUtf8Text ( 0 , self.content_width ,
Font : getFace ( self.font , self.font_size ) , " … " , true , self.bold ) . x
local removed_char_width = 0
while removed_char_width < ellipsis_size do
-- the width of each char has already been calculated by TextBoxWidget
removed_char_width = removed_char_width + item_name : getCharWidth ( offset )
end
-- remove chars when text is too long
while item_name.width <= text_size + ellipsis_size do
text_size = text_size - item_name : getCharWidth ( offset )
-- remove one char from text
offset = offset - 1
end
if offset == max_offset then
-- when finally after manipulation we have all original text we don't need to add ellipsis
self.text = table.concat ( item_name_orig.charlist , " " , 1 , offset )
else
-- remove ending '\n' (new line) to prevent increase number of lines
if item_name_orig.charlist [ offset ] == " \n " then
offset = offset - 1
end
self.text = table.concat ( item_name.charlist , ' ' , 1 , offset ) .. " … "
flag_fit = true
else
-- If we don't fit, decrease font size
self.font_size = self.font_size - 2
-- add ellipsis to show that text was truncated
self.text = table.concat ( item_name_orig.charlist , " " , 1 , offset ) .. " … "
end
if item_name then
item_name : free ( )
end
if item_name_orig then
item_name_orig : free ( )
end
--final item_name that fits
item_name = TextBoxWidget : new {
text = self.text ,
face = Font : getFace ( self.font , self.font_size ) ,
width = self.content_width - mandatory_w - state_button_width - text_mandatory_padding ,
alignment = " left " ,
bold = self.bold ,
fgcolor = self.dim and Blitbuffer.COLOR_DARK_GRAY or nil ,
}
end
self.face = Font : getFace ( self.font , self.font_size )
end
Robert
5 years ago
committed by
poire-z