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Merge pull request #1579 from psychon/gears-wallpaper-improvements 

Gears wallpaper improvements
This commit is contained in:
Emmanuel Lepage Vallée 2017-02-21 13:31:45 -05:00 committed by GitHub
parent 1c71260389 4efee3c3d6
commit 94311913bb
1 changed files with 20 additions and 4 deletions
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24
lib/gears/wallpaper.lua
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@ -111,6 +111,7 @@ end
-- @see gears.color
function wallpaper.centered(surf, s, background)
local geom, cr = wallpaper.prepare_context(s)
local original_surf = surf
surf = surface.load_uncached(surf)
background = color(background)
@ -126,7 +127,10 @@ function wallpaper.centered(surf, s, background)
cr:clip()
cr:set_source_surface(surf, 0, 0)
cr:paint()
surf:finish()
if surf ~= original_surf then
surf:finish()
end
assert(cr.status == "SUCCESS", "Cairo context entered error state: " .. cr.status)
end
--- Set a tiled wallpaper.
@ -141,13 +145,17 @@ function wallpaper.tiled(surf, s, offset)
cr:translate(offset.x, offset.y)
end
local original_surf = surf
surf = surface.load_uncached(surf)
local pattern = cairo.Pattern.create_for_surface(surf)
pattern.extend = cairo.Extend.REPEAT
cr.source = pattern
cr.operator = cairo.Operator.SOURCE
cr:paint()
surf:finish()
if surf ~= original_surf then
surf:finish()
end
assert(cr.status == "SUCCESS", "Cairo context entered error state: " .. cr.status)
end
--- Set a maximized wallpaper.
@ -159,6 +167,7 @@ end
-- @param offset This can be set to a table with entries x and y.
function wallpaper.maximized(surf, s, ignore_aspect, offset)
local geom, cr = wallpaper.prepare_context(s)
local original_surf = surf
surf = surface.load_uncached(surf)
local w, h = surface.get_size(surf)
local aspect_w = geom.width / w
@ -181,7 +190,10 @@ function wallpaper.maximized(surf, s, ignore_aspect, offset)
cr:set_source_surface(surf, 0, 0)
cr.operator = cairo.Operator.SOURCE
cr:paint()
surf:finish()
if surf ~= original_surf then
surf:finish()
end
assert(cr.status == "SUCCESS", "Cairo context entered error state: " .. cr.status)
end
--- Set a fitting wallpaper.
@ -193,6 +205,7 @@ end
-- @see gears.color
function wallpaper.fit(surf, s, background)
local geom, cr = wallpaper.prepare_context(s)
local original_surf = surf
surf = surface.load_uncached(surf)
background = color(background)
@ -213,7 +226,10 @@ function wallpaper.fit(surf, s, background)
cr:scale(scale, scale)
cr:set_source_surface(surf, 0, 0)
cr:paint()
surf:finish()
if surf ~= original_surf then
surf:finish()
end
assert(cr.status == "SUCCESS", "Cairo context entered error state: " .. cr.status)
end
return wallpaper