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Diffstat (limited to 'awesome/lib/wibox/container/radialprogressbar.lua')
| -rw-r--r-- | awesome/lib/wibox/container/radialprogressbar.lua | 481 |
1 files changed, 481 insertions, 0 deletions
diff --git a/awesome/lib/wibox/container/radialprogressbar.lua b/awesome/lib/wibox/container/radialprogressbar.lua new file mode 100644 index 0000000..7c67906 --- /dev/null +++ b/awesome/lib/wibox/container/radialprogressbar.lua @@ -0,0 +1,481 @@ +--------------------------------------------------------------------------- +-- +-- A circular progressbar wrapper. +-- +-- If no child `widget` is set, then the radialprogressbar will take all the +-- available size. Use a `wibox.container.constraint` to prevent this. +-- +-- +-- +-- +-- +-- @author Emmanuel Lepage Vallee <elv1313@gmail.com> +-- @copyright 2013 Emmanuel Lepage Vallee +-- @classmod wibox.container.radialprogressbar +--------------------------------------------------------------------------- + +local setmetatable = setmetatable +local base = require("wibox.widget.base") +local shape = require("gears.shape" ) +local util = require( "awful.util" ) +local color = require( "gears.color" ) +local beautiful = require("beautiful" ) + +local default_outline_width = 2 + +local radialprogressbar = { mt = {} } + +--- The progressbar border background color. +-- @beautiful beautiful.radialprogressbar_border_color + +--- The progressbar foreground color. +-- @beautiful beautiful.radialprogressbar_color + +--- The progressbar border width. +-- @beautiful beautiful.radialprogressbar_border_width + +--- The padding between the outline and the progressbar. +-- @beautiful beautiful.radialprogressbar_paddings +-- @tparam[opt=0] table|number paddings A number or a table +-- @tparam[opt=0] number paddings.top +-- @tparam[opt=0] number paddings.bottom +-- @tparam[opt=0] number paddings.left +-- @tparam[opt=0] number paddings.right + +local function outline_workarea(self, width, height) + local border_width = self._private.border_width or + beautiful.radialprogressbar_border_width or default_outline_width + + local x, y = 0, 0 + + -- Make sure the border fit in the clip area + local offset = border_width/2 + x, y = x + offset, y+offset + width, height = width-2*offset, height-2*offset + + return {x=x, y=y, width=width, height=height}, offset +end + +-- The child widget area +local function content_workarea(self, width, height) + local padding = self._private.paddings or {} + local wa = outline_workarea(self, width, height) + + wa.x = wa.x + (padding.left or 0) + wa.y = wa.y + (padding.top or 0) + wa.width = wa.width - (padding.left or 0) - (padding.right or 0) + wa.height = wa.height - (padding.top or 0) - (padding.bottom or 0) + + return wa +end + +-- Draw the radial outline and progress +function radialprogressbar:after_draw_children(_, cr, width, height) + cr:restore() + + local border_width = self._private.border_width or + beautiful.radialprogressbar_border_width or default_outline_width + + local wa = outline_workarea(self, width, height) + cr:translate(wa.x, wa.y) + + -- Draw the outline + shape.rounded_bar(cr, wa.width, wa.height) + cr:set_source(color(self:get_border_color() or "#0000ff")) + cr:set_line_width(border_width) + cr:stroke() + + -- Draw the progress + cr:set_source(color(self:get_color() or "#ff00ff")) + shape.radial_progress(cr, wa.width, wa.height, self._percent or 0) + cr:set_line_width(border_width) + cr:stroke() + +end + +-- Set the clip +function radialprogressbar:before_draw_children(_, cr, width, height) + cr:save() + local wa = content_workarea(self, width, height) + cr:translate(wa.x, wa.y) + shape.rounded_bar(cr, wa.width, wa.height) + cr:clip() + cr:translate(-wa.x, -wa.y) +end + +-- Layout this layout +function radialprogressbar:layout(_, width, height) + if self._private.widget then + local wa = content_workarea(self, width, height) + + return { base.place_widget_at( + self._private.widget, wa.x, wa.y, wa.width, wa.height + ) } + end +end + +-- Fit this layout into the given area +function radialprogressbar:fit(context, width, height) + if self._private.widget then + local wa = content_workarea(self, width, height) + local w, h = base.fit_widget(self, context, self._private.widget, wa.width, wa.height) + return wa.x + w, wa.y + h + end + + return width, height +end + +--- The widget to wrap in a radial proggressbar. +-- @property widget +-- @tparam widget widget The widget + +function radialprogressbar:set_widget(widget) + if widget then + base.check_widget(widget) + end + self._private.widget = widget + self:emit_signal("widget::layout_changed") +end + +--- Get the children elements +-- @treturn table The children +function radialprogressbar: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 radialprogressbar:set_children(children) + self._private.widget = children and children[1] + self:emit_signal("widget::layout_changed") +end + +--- Reset this container. +function radialprogressbar:reset() + self:set_widget(nil) +end + +for _,v in ipairs {"left", "right", "top", "bottom"} do + radialprogressbar["set_"..v.."_padding"] = function(self, val) + self._private.paddings = self._private.paddings or {} + self._private.paddings[v] = val + self:emit_signal("widget::redraw_needed") + self:emit_signal("widget::layout_changed") + end +end + +--- The padding between the outline and the progressbar. +-- +-- +-- +-- +-- @property paddings +-- @tparam[opt=0] table|number paddings A number or a table +-- @tparam[opt=0] number paddings.top +-- @tparam[opt=0] number paddings.bottom +-- @tparam[opt=0] number paddings.left +-- @tparam[opt=0] number paddings.right + +--- The progressbar value. +-- +-- +-- +-- +-- @property value +-- @tparam number value Between min_value and max_value + +function radialprogressbar:set_value(val) + if not val then self._percent = 0; return end + + if val > self._private.max_value then + self:set_max_value(val) + elseif val < self._private.min_value then + self:set_min_value(val) + end + + local delta = self._private.max_value - self._private.min_value + + self._percent = val/delta + self:emit_signal("widget::redraw_needed") +end + +--- The border background color. +-- +-- +-- +-- +-- @property border_color + +--- The border foreground color. +-- +-- +-- +-- +-- @property color + +--- The border width. +-- +-- +-- +-- +-- @property border_width +-- @tparam[opt=3] number border_width + +--- The minimum value. +-- @property min_value + +--- The maximum value. +-- @property max_value + +for _, prop in ipairs {"max_value", "min_value", "border_color", "color", + "border_width", "paddings"} do + radialprogressbar["set_"..prop] = function(self, value) + self._private[prop] = value + self:emit_signal("property::"..prop) + self:emit_signal("widget::redraw_needed") + end + radialprogressbar["get_"..prop] = function(self) + return self._private[prop] or beautiful["radialprogressbar_"..prop] + end +end + +function radialprogressbar:set_paddings(val) + self._private.paddings = type(val) == "number" and { + left = val, + right = val, + top = val, + bottom = val, + } or val or {} + self:emit_signal("property::paddings") + self:emit_signal("widget::redraw_needed") + self:emit_signal("widget::layout_changed") +end + +--- Returns a new radialprogressbar layout. A radialprogressbar layout +-- radialprogressbars a given widget. Use `.widget` to set the widget. +-- @param[opt] widget The widget to display. +-- @function wibox.container.radialprogressbar +local function new(widget) + local ret = base.make_widget(nil, nil, { + enable_properties = true, + }) + + util.table.crush(ret, radialprogressbar) + ret._private.max_value = 1 + ret._private.min_value = 0 + + ret:set_widget(widget) + + return ret +end + +function radialprogressbar.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(radialprogressbar, radialprogressbar.mt) + +-- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80 |