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Diffstat (limited to 'lib/wibox/container/mirror.lua')
| -rw-r--r-- | lib/wibox/container/mirror.lua | 340 |
1 files changed, 340 insertions, 0 deletions
diff --git a/lib/wibox/container/mirror.lua b/lib/wibox/container/mirror.lua new file mode 100644 index 0000000..fc275cf --- /dev/null +++ b/lib/wibox/container/mirror.lua @@ -0,0 +1,340 @@ +--------------------------------------------------------------------------- +-- +-- +-- +-- +-- +-- @author dodo +-- @copyright 2012 dodo +-- @classmod wibox.container.mirror +--------------------------------------------------------------------------- + +local type = type +local error = error +local ipairs = ipairs +local setmetatable = setmetatable +local base = require("wibox.widget.base") +local matrix = require("gears.matrix") +local util = require("awful.util") + +local mirror = { mt = {} } + +-- Layout this layout +function mirror:layout(_, width, height) + if not self._private.widget then return end + + local m = matrix.identity + local t = { x = 0, y = 0 } -- translation + local s = { x = 1, y = 1 } -- scale + if self._private.horizontal then + t.x = width + s.x = -1 + end + if self._private.vertical then + t.y = height + s.y = -1 + end + m = m:translate(t.x, t.y) + m = m:scale(s.x, s.y) + + return { base.place_widget_via_matrix(self._private.widget, m, width, height) } +end + +-- Fit this layout into the given area +function mirror:fit(context, ...) + if not self._private.widget then + return 0, 0 + end + return base.fit_widget(self, context, self._private.widget, ...) +end + +--- The widget to be reflected. +-- @property widget +-- @tparam widget widget The widget + +function mirror:set_widget(widget) + if widget then + base.check_widget(widget) + end + self._private.widget = widget + self:emit_signal("widget::layout_changed") +end + +function mirror:get_widget() + return self._private.widget +end + +--- Get the number of children element +-- @treturn table The children +function mirror:get_children() + return {self._private.widget} +end + +--- Replace the layout children +-- This layout only accept one children, all others will be ignored +-- @tparam table children A table composed of valid widgets +function mirror:set_children(children) + self:set_widget(children[1]) +end + +--- Reset this layout. The widget will be removed and the axes reset. +function mirror:reset() + self._private.horizontal = false + self._private.vertical = false + self:set_widget(nil) +end + +function mirror:set_reflection(reflection) + if type(reflection) ~= 'table' then + error("Invalid type of reflection for mirror layout: " .. + type(reflection) .. " (should be a table)") + end + for _, ref in ipairs({"horizontal", "vertical"}) do + if reflection[ref] ~= nil then + self._private[ref] = reflection[ref] + end + end + self:emit_signal("widget::layout_changed") +end + +--- Get the reflection of this mirror layout. +-- @property reflection +-- @param table reflection A table of booleans with the keys "horizontal", "vertical". +-- @param boolean reflection.horizontal +-- @param boolean reflection.vertical + +function mirror:get_reflection() + return { horizontal = self._private.horizontal, vertical = self._private.vertical } +end + +--- Returns a new mirror container. +-- A mirror container mirrors a given widget. Use +-- `:set_widget()` to set the widget and +-- `:set_horizontal()` and `:set_vertical()` for the direction. +-- horizontal and vertical are by default false which doesn't change anything. +-- @param[opt] widget The widget to display. +-- @param[opt] reflection A table describing the reflection to apply. +-- @treturn table A new mirror container +-- @function wibox.container.mirror +local function new(widget, reflection) + local ret = base.make_widget(nil, nil, {enable_properties = true}) + ret._private.horizontal = false + ret._private.vertical = false + + util.table.crush(ret, mirror, true) + + ret:set_widget(widget) + ret:set_reflection(reflection or {}) + + return ret +end + +function mirror.mt:__call(...) + return new(...) +end + +--Imported documentation + + +--- Get a widex index. +-- @param widget The widget to look for +-- @param[opt] recursive Also check sub-widgets +-- @param[opt] ... Aditional widgets to add at the end of the \"path\" +-- @return The index +-- @return The parent layout +-- @return The path between \"self\" and \"widget\" +-- @function index + +--- Get all direct and indirect children widgets. +-- This will scan all containers recursively to find widgets +-- Warning: This method it prone to stack overflow id the widget, or any of its +-- children, contain (directly or indirectly) itself. +-- @treturn table The children +-- @function get_all_children + +--- Set a declarative widget hierarchy description. +-- See [The declarative layout system](../documentation/03-declarative-layout.md.html) +-- @param args An array containing the widgets disposition +-- @function setup + +--- Force a widget height. +-- @property forced_height +-- @tparam number|nil height The height (`nil` for automatic) + +--- Force a widget width. +-- @property forced_width +-- @tparam number|nil width The width (`nil` for automatic) + +--- The widget opacity (transparency). +-- @property opacity +-- @tparam[opt=1] number opacity The opacity (between 0 and 1) + +--- The widget visibility. +-- @property visible +-- @param boolean + +--- Set/get a widget's buttons. +-- @param _buttons The table of buttons that should bind to the widget. +-- @function buttons + +--- Emit a signal and ensure all parent widgets in the hierarchies also +-- forward the signal. This is useful to track signals when there is a dynamic +-- set of containers and layouts wrapping the widget. +-- @tparam string signal_name +-- @param ... Other arguments +-- @function emit_signal_recursive + +--- When the layout (size) change. +-- This signal is emitted when the previous results of `:layout()` and `:fit()` +-- are no longer valid. Unless this signal is emitted, `:layout()` and `:fit()` +-- must return the same result when called with the same arguments. +-- @signal widget::layout_changed +-- @see widget::redraw_needed + +--- When the widget content changed. +-- This signal is emitted when the content of the widget changes. The widget will +-- be redrawn, it is not re-layouted. Put differently, it is assumed that +-- `:layout()` and `:fit()` would still return the same results as before. +-- @signal widget::redraw_needed +-- @see widget::layout_changed + +--- When a mouse button is pressed over the widget. +-- @signal button::press +-- @tparam number lx The horizontal position relative to the (0,0) position in +-- the widget. +-- @tparam number ly The vertical position relative to the (0,0) position in the +-- widget. +-- @tparam number button The button number. +-- @tparam table mods The modifiers (mod4, mod1 (alt), Control, Shift) +-- @tparam table find_widgets_result The entry from the result of +-- @{wibox.drawable:find_widgets} for the position that the mouse hit. +-- @tparam wibox.drawable find_widgets_result.drawable The drawable containing +-- the widget. +-- @tparam widget find_widgets_result.widget The widget being displayed. +-- @tparam wibox.hierarchy find_widgets_result.hierarchy The hierarchy +-- managing the widget's geometry. +-- @tparam number find_widgets_result.x An approximation of the X position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.y An approximation of the Y position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.width An approximation of the width that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.height An approximation of the height that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.widget_width The exact width of the widget +-- in its local coordinate system. +-- @tparam number find_widgets_result.widget_height The exact height of the widget +-- in its local coordinate system. +-- @see mouse + +--- When a mouse button is released over the widget. +-- @signal button::release +-- @tparam number lx The horizontal position relative to the (0,0) position in +-- the widget. +-- @tparam number ly The vertical position relative to the (0,0) position in the +-- widget. +-- @tparam number button The button number. +-- @tparam table mods The modifiers (mod4, mod1 (alt), Control, Shift) +-- @tparam table find_widgets_result The entry from the result of +-- @{wibox.drawable:find_widgets} for the position that the mouse hit. +-- @tparam wibox.drawable find_widgets_result.drawable The drawable containing +-- the widget. +-- @tparam widget find_widgets_result.widget The widget being displayed. +-- @tparam wibox.hierarchy find_widgets_result.hierarchy The hierarchy +-- managing the widget's geometry. +-- @tparam number find_widgets_result.x An approximation of the X position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.y An approximation of the Y position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.width An approximation of the width that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.height An approximation of the height that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.widget_width The exact width of the widget +-- in its local coordinate system. +-- @tparam number find_widgets_result.widget_height The exact height of the widget +-- in its local coordinate system. +-- @see mouse + +--- When the mouse enter a widget. +-- @signal mouse::enter +-- @tparam table find_widgets_result The entry from the result of +-- @{wibox.drawable:find_widgets} for the position that the mouse hit. +-- @tparam wibox.drawable find_widgets_result.drawable The drawable containing +-- the widget. +-- @tparam widget find_widgets_result.widget The widget being displayed. +-- @tparam wibox.hierarchy find_widgets_result.hierarchy The hierarchy +-- managing the widget's geometry. +-- @tparam number find_widgets_result.x An approximation of the X position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.y An approximation of the Y position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.width An approximation of the width that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.height An approximation of the height that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.widget_width The exact width of the widget +-- in its local coordinate system. +-- @tparam number find_widgets_result.widget_height The exact height of the widget +-- in its local coordinate system. +-- @see mouse + +--- When the mouse leave a widget. +-- @signal mouse::leave +-- @tparam table find_widgets_result The entry from the result of +-- @{wibox.drawable:find_widgets} for the position that the mouse hit. +-- @tparam wibox.drawable find_widgets_result.drawable The drawable containing +-- the widget. +-- @tparam widget find_widgets_result.widget The widget being displayed. +-- @tparam wibox.hierarchy find_widgets_result.hierarchy The hierarchy +-- managing the widget's geometry. +-- @tparam number find_widgets_result.x An approximation of the X position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.y An approximation of the Y position that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.width An approximation of the width that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.height An approximation of the height that +-- the widget is visible at on the surface. +-- @tparam number find_widgets_result.widget_width The exact width of the widget +-- in its local coordinate system. +-- @tparam number find_widgets_result.widget_height The exact height of the widget +-- in its local coordinate system. +-- @see mouse + + +--Imported documentation + + +--- Disconnect to a signal. +-- @tparam string name The name of the signal +-- @tparam function func The callback that should be disconnected +-- @function disconnect_signal + +--- Emit a signal. +-- +-- @tparam string name The name of the signal +-- @param ... Extra arguments for the callback functions. Each connected +-- function receives the object as first argument and then any extra arguments +-- that are given to emit_signal() +-- @function emit_signal + +--- Connect to a signal. +-- @tparam string name The name of the signal +-- @tparam function func The callback to call when the signal is emitted +-- @function connect_signal + +--- Connect to a signal weakly. This allows the callback function to be garbage +-- collected and automatically disconnects the signal when that happens. +-- +-- **Warning:** +-- Only use this function if you really, really, really know what you +-- are doing. +-- @tparam string name The name of the signal +-- @tparam function func The callback to call when the signal is emitted +-- @function weak_connect_signal + + +return setmetatable(mirror, mirror.mt) + +-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80 |