Add a multicore CPU monitor gadget.

As always this prove the coolness of edgar :) the whole
gadget are just 69 lines of python code (plus 150 of the edc)

A bit more of info at:
https://phab.enlightenment.org/w/emodules/edgar/

GADGETS/cpu/Makefile

@@ -0,0 +1,36 @@
+# Simple Makefile for Enlightenment (edgar) gadgets
+
+# gadget specific config
+GADGET_NAME = cpu
+EXTRA_FILES = 
+
+
+# nothing  should be changed below this point
+GADGET_FILES = __init__.pyc $(GADGET_NAME).edj
+prefix = $(shell pkg-config --variable=libdir enlightenment)
+gadget_folder = ${prefix}/enlightenment/gadgets/$(GADGET_NAME)
+
+.PHONY: all install clean
+
+all: $(GADGET_FILES) $(EXTRA_FILES)
+
+install: all
+	@mkdir -p -v ${gadget_folder}
+	@cp --preserve=mode -v $(GADGET_FILES) $(EXTRA_FILES) $(gadget_folder)
+
+uninstall: all
+	@rm -rfv ${gadget_folder}
+
+clean:
+	@rm -fv *.edj *.pyc
+
+
+EDJE_CC = edje_cc
+EDJE_FLAGS = -v -id images/ -fd fonts/
+
+%.edj: %.edc images/*
+	$(EDJE_CC) $(EDJE_FLAGS) $<
+	@chmod -v og+r $@
+
+%.pyc: %.py
+	python3 -c "from py_compile import compile; compile('$<', '$@')"

GADGETS/cpu/__init__.py

@@ -0,0 +1,68 @@
+# This python file use the following encoding: utf-8
+
+import psutil
+
+import e
+
+from efl import ecore
+from efl import evas
+from efl import edje
+from efl.evas import EXPAND_BOTH, FILL_BOTH
+
+
+__gadget_name__ = 'CPU Monitor'
+__gadget_vers__ = '0.1'
+__gadget_auth__ = 'DaveMDS'
+__gadget_mail__ = 'dave@gurumeditation.it'
+__gadget_desc__ = 'Multicore CPU monitor'
+__gadget_vapi__ = 1
+__gadget_opts__ = { 'popup_on_desktop': False }
+
+
+
+class Gadget(e.Gadget):
+
+    def __init__(self):
+        super().__init__()
+
+        self.num_cores = psutil.cpu_count()
+        self.aspect = None
+        self.poller = None
+
+    def instance_created(self, obj, site):
+        super().instance_created(obj, site)
+
+        if self.aspect is None:
+            w, h = obj.data_get('aspect_w'), obj.data_get('aspect_h')
+            self.aspect = int(w), int(h)
+
+        obj.data['bars'] = list()
+        for i in range(self.num_cores):
+            bar = edje.Edje(obj.evas, size_hint_expand=EXPAND_BOTH,
+                            size_hint_fill=FILL_BOTH)
+            e.theme_object_set(bar, 'cpu', 'bar')
+            obj.part_box_append('main.box', bar)
+            bar.show()
+            obj.data['bars'].append(bar)
+
+        obj.size_hint_aspect = (evas.EVAS_ASPECT_CONTROL_BOTH,
+                                self.aspect[0] * self.num_cores, self.aspect[1])
+
+        if self.poller is None:
+            self.poller = ecore.Poller(8, self.poller_cb, ecore.ECORE_POLLER_CORE)
+
+    def instance_destroyed(self, obj):
+        super().instance_destroyed(obj)
+
+        if len(self._instances) < 1 and self.poller is not None:
+            self.poller.delete()
+            self.poller = None
+
+    def poller_cb(self):
+        percents = psutil.cpu_percent(percpu=True)
+
+        for obj in self._instances:
+            for i, bar in enumerate(obj.data['bars']):
+                bar.message_send(0, percents[i])
+
+        return ecore.ECORE_CALLBACK_RENEW

GADGETS/cpu/cpu.edc

@@ -0,0 +1,168 @@
+/**
+ *  EDGAR Dropbox Gadget
+ */
+
+#define DBG_SHOW(_PART, _R, _G, _B) \
+   part { name: "dbg_show"_PART; \
+      type: RECT; mouse_events: 0; \
+      description { state: "default" 0.0; \
+         rel1.to: _PART; rel2.to: _PART; \
+         color: _R _G _B 50; } }
+
+#define SHOW(_PART) DBG_SHOW(_PART, 50, 0, 0)
+
+images {
+   image: "cpu.png" COMP;
+   image: "bar_bg.png" COMP;
+   image: "green_on.png" COMP;
+   image: "yellow_on.png" COMP;
+   image: "red_on.png" COMP;
+}
+
+
+collections {
+/**
+ *  API [e/gadget/icon] The group used for the icon of the gadget
+ */
+   group { name: "e/gadgets/cpu/icon";
+      parts {
+         image { "icon";
+            desc { "default";
+               aspect: 1.0 1.0;
+               aspect_preference: BOTH;
+               image.normal: "cpu.png";
+            }
+         }
+      }
+   }
+
+/**
+ *  API [e/gadget/main] The main group of the gadget
+ */
+   group { name: "e/gadgets/cpu/main";
+      data {
+         item: "aspect_w" "10";
+         item: "aspect_h" "54";
+      }
+      parts {
+         box { "main.box";
+            desc { "default";
+               box.layout: "horizontal";
+               box.min: 1 1;
+            }
+         }
+      }
+   }
+
+   group { name: "e/gadgets/cpu/bar";
+      script {
+         public message(Msg_Type:type, id, ...) {
+            if ((type == MSG_FLOAT) && (id == 0)) {
+               new Float:val = getfarg(2);
+
+               if (val > (100 / 7 * 1)) set_state(PART:"led1", "on", 0.0);
+               else                     set_state(PART:"led1", "default", 0.0);
+               if (val > (100 / 7 * 2)) set_state(PART:"led2", "on", 0.0);
+               else                     set_state(PART:"led2", "default", 0.0);
+               if (val > (100 / 7 * 3)) set_state(PART:"led3", "on", 0.0);
+               else                     set_state(PART:"led3", "default", 0.0);
+               if (val > (100 / 7 * 4)) set_state(PART:"led4", "on", 0.0);
+               else                     set_state(PART:"led4", "default", 0.0);
+               if (val > (100 / 7 * 5)) set_state(PART:"led5", "on", 0.0);
+               else                     set_state(PART:"led5", "default", 0.0);
+               if (val > (100 / 7 * 6)) set_state(PART:"led6", "on", 0.0);
+               else                     set_state(PART:"led6", "default", 0.0);
+
+               // custom_state(PART:"test_bar", "default", 0.0);
+               // set_state_val(PART:"test_bar", STATE_REL1, 0.0, 1.0 - val / 100);
+               // set_state(PART:"test_bar", "custom", 0.0);
+            }
+         }
+      }
+      parts {
+         part { name: "bg";
+            desc { "default";
+               color: 255 255 255 200;
+               aspect: (10 / 54) (10 / 54); aspect_preference: BOTH;
+               image.normal: "bar_bg.png";
+            }
+            part { name: "led1";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 5);
+                  rel2.relative: 1.0 (1.0 / 6 * 6);
+                  image.normal: "green_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+            part { name: "led2";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 4);
+                  rel2.relative: 1.0 (1.0 / 6 * 5);
+                  image.normal: "green_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+            part { name: "led3";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 3);
+                  rel2.relative: 1.0 (1.0 / 6 * 4);
+                  image.normal: "green_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+            part { name: "led4";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 2);
+                  rel2.relative: 1.0 (1.0 / 6 * 3);
+                  image.normal: "yellow_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+            part { name: "led5";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 1);
+                  rel2.relative: 1.0 (1.0 / 6 * 2);
+                  image.normal: "yellow_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+            part { name: "led6";
+               desc { "default"; hid;
+                  rel1.relative: 0.0 (1.0 / 6 * 0);
+                  rel2.relative: 1.0 (1.0 / 6 * 1);
+                  image.normal: "red_on.png";
+               }
+               desc { "on"; inherit: "default"; vis; }
+            }
+         }
+         // rect { "test_bar";
+         //    desc { "default";
+         //       color: 255 255 255 50;
+         //       rel1.relative: 0.0 1.0;
+         //       rel1.to: "bg";
+         //       rel2.to: "bg";
+         //    }
+         // }
+      }
+   }
+
+/**
+ *  API [e/gadget/popup] This is the group that will be placed inside popups
+ */
+/*
+   group { name: "e/gadgets/cpu/popup";
+      min: 310 0;
+      parts {
+         box { "popup.box";
+            desc { "default";
+               box {
+                  layout: "vertical";
+                  padding: 0 6;
+                  min: 1 1;
+               }
+            }
+         }
+      }
+   }
+*/
+}