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Diffstat (limited to 'awesome/lib/wibox/widget/piechart.lua')
| -rw-r--r-- | awesome/lib/wibox/widget/piechart.lua | 467 |
1 files changed, 0 insertions, 467 deletions
diff --git a/awesome/lib/wibox/widget/piechart.lua b/awesome/lib/wibox/widget/piechart.lua deleted file mode 100644 index 5a1c185..0000000 --- a/awesome/lib/wibox/widget/piechart.lua +++ /dev/null @@ -1,467 +0,0 @@ ---------------------------------------------------------------------------- --- Display percentage in a circle. --- --- Note that this widget makes no attempts to prevent overlapping labels or --- labels drawn outside of the widget boundaries. --- --- --- --- --- --- @usage ---wibox.widget { --- data_list = { --- { 'L1', 100 }, --- { 'L2', 200 }, --- { 'L3', 300 }, --- }, --- border_width = 1, --- colors = { --- beautiful.bg_normal, --- beautiful.bg_highlight, --- beautiful.border_color, --- }, --- widget = wibox.widget.piechart ---} --- @author Emmanuel Lepage Valle --- @copyright 2012 Emmanuel Lepage Vallee --- @classmod wibox.widget.piechart ---------------------------------------------------------------------------- - -local color = require( "gears.color" ) -local base = require( "wibox.widget.base" ) -local beautiful = require( "beautiful" ) -local util = require( "awful.util" ) -local pie = require( "gears.shape" ).pie -local unpack = unpack or table.unpack -- luacheck: globals unpack (compatibility with Lua 5.1) - -local module = {} - -local piechart = {} - -local function draw_label(cr,angle,radius,center_x,center_y,text) - local edge_x = center_x+(radius/2)*math.cos(angle) - local edge_y = center_y+(radius/2)*math.sin(angle) - - cr:move_to(edge_x, edge_y) - - cr:rel_line_to(radius*math.cos(angle), radius*math.sin(angle)) - - local x,y = cr:get_current_point() - - cr:rel_line_to(x > center_x and radius/2 or -radius/2, 0) - - local ext = cr:text_extents(text) - - cr:rel_move_to( - (x>center_x and radius/2.5 or (-radius/2.5 - ext.width)), - ext.height/2 - ) - - cr:show_text(text) --TODO eventually port away from the toy API - cr:stroke() - - cr:arc(edge_x, edge_y,2,0,2*math.pi) - cr:arc(x+(x>center_x and radius/2 or -radius/2),y,2,0,2*math.pi) - - cr:fill() -end - -local function compute_sum(data) - local ret = 0 - for _, entry in ipairs(data) do - ret = ret + entry[2] - end - - return ret -end - -local function draw(self, _, cr, width, height) - if not self._private.data_list then return end - - local radius = (height > width and width or height) / 4 - local sum, start, count = compute_sum(self._private.data_list),0,0 - local has_label = self._private.display_labels ~= false - - -- Labels need to be drawn later so the original source is kept - -- use get_source() wont work are the reference cannot be set from Lua(?) - local labels = {} - - local border_width = self:get_border_width() or 1 - local border_color = self:get_border_color() - border_color = border_color and color(border_color) - - -- Draw the pies - cr:save() - cr:set_line_width(border_width) - - -- Alternate from a given sets or colors - local colors = self:get_colors() - local col_count = colors and #colors or 0 - - for _, entry in ipairs(self._private.data_list) do - local k, v = entry[1], entry[2] - local end_angle = start + 2*math.pi*(v/sum) - - local col = colors and color(colors[math.fmod(count,col_count)+1]) or nil - - pie(cr, width, height, start, end_angle, radius) - - if col then - cr:save() - cr:set_source(color(col)) - end - - if border_width > 0 then - if col then - cr:fill_preserve() - cr:restore() - end - - -- By default, it uses the fg color - if border_color then - cr:set_source(border_color) - end - cr:stroke() - elseif col then - cr:fill() - cr:restore() - end - - -- Store the label position for later - if has_label then - table.insert(labels, { - --[[angle ]] start+(end_angle-start)/2, - --[[radius ]] radius, - --[[center_x]] width/2, - --[[center_y]] height/2, - --[[text ]] k, - }) - end - start,count = end_angle,count+1 - end - cr:restore() - - -- Draw the labels - if has_label then - for _, v in ipairs(labels) do - draw_label(cr, unpack(v)) - end - end -end - -local function fit(_, _, width, height) - return width, height -end - ---- The pie chart data list. --- @property data_list --- @tparam table data_list Sorted table where each entry has a label as its --- first value and a number as its second value. - ---- The pie chart data. --- @property data --- @tparam table data Labels as keys and number as value. - ---- The border color. --- If none is set, it will use current foreground (text) color. --- --- --- --- --- @property border_color --- @param color --- @see gears.color - ---- The pie elements border width. --- --- --- --- --- @property border_width --- @tparam[opt=1] number border_width - ---- The pie chart colors. --- If no color is set, only the border will be drawn. If less colors than --- required are set, colors will be re-used in order. --- @property colors --- @tparam table colors A table of colors, one for each elements --- @see gears.color - ---- The border color. --- If none is set, it will use current foreground (text) color. --- @beautiful beautiful.piechart_border_color --- @param color --- @see gears.color - ---- If the pie chart has labels. --- --- --- --- --- @property display_labels --- @param[opt=true] boolean - ---- The pie elements border width. --- @beautiful beautiful.piechart_border_width --- @tparam[opt=1] number border_width - ---- The pie chart colors. --- If no color is set, only the border will be drawn. If less colors than --- required are set, colors will be re-used in order. --- @beautiful beautiful.piechart_colors --- @tparam table colors A table of colors, one for each elements --- @see gears.color - -for _, prop in ipairs {"data_list", "border_color", "border_width", "colors", - "display_labels" - } do - piechart["set_"..prop] = function(self, value) - self._private[prop] = value - self:emit_signal("property::"..prop) - if prop == "data_list" then - self:emit_signal("property::data") - end - self:emit_signal("widget::redraw_needed") - end - piechart["get_"..prop] = function(self) - return self._private[prop] or beautiful["piechart_"..prop] - end -end - -function piechart:set_data(value) - local list = {} - for k, v in pairs(value) do - table.insert(list, { k, v }) - end - self:set_data_list(list) -end - -function piechart:get_data() - local list = {} - for _, entry in ipairs(self:get_data_list()) do - list[entry[1]] = entry[2] - end - return list -end - -local function new(data_list) - - local ret = base.make_widget(nil, nil, { - enable_properties = true, - }) - - util.table.crush(ret, piechart) - - rawset(ret, "fit" , fit ) - rawset(ret, "draw", draw) - - ret:set_data_list(data_list) - - return ret -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(module, { __call = function(_, ...) return new(...) end }) --- vim: filetype=lua:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80 |