Added images, added cpu monitor, and updated layout

src/Pytop/PyTop.py

@@ -1,5 +1,10 @@
 #!/usr/bin/python3
 
+# Python imports
+import inspect
+
+from setproctitle import setproctitle
+
 # Gtk imports
 import gi, faulthandler, signal
 gi.require_version('Gtk', '3.0')
@@ -8,14 +13,9 @@ from gi.repository import Gtk as gtk
 from gi.repository import Gdk as gdk
 from gi.repository import GLib
 
-# Python imports
-import inspect
-
-from setproctitle import setproctitle
-
 # Application imports
 from utils import Settings
-from signal_classes import CrossClassSignals, GridSignals, TaskbarSignals
+from signal_classes import CrossClassSignals, GridSignals, TaskbarSignals, DrawSignals
 
 
 class Main:
@@ -58,7 +58,8 @@ class Main:
         # Then, builder connects to any signals it needs.
         classes  = [CrossClassSignals(settings),
                     GridSignals(settings),
-                    TaskbarSignals(settings)]
+                    TaskbarSignals(settings),
+                    DrawSignals(settings)]
 
         handlers = {}
         for c in classes:

src/Pytop/resources/PyTop.glade

@@ -7,6 +7,14 @@
       <mime-type>inode/directory</mime-type>
     </mime-types>
   </object>
+  <object class="GtkAdjustment" id="brushSizeProp">
+    <property name="lower">1</property>
+    <property name="upper">100</property>
+    <property name="value">1</property>
+    <property name="step_increment">1</property>
+    <property name="page_increment">10</property>
+    <signal name="value-changed" handler="onBrushSizeChange" swapped="no"/>
+  </object>
   <object class="GtkWindow" id="Window">
     <property name="can_focus">False</property>
     <property name="default_width">800</property>
@@ -76,14 +84,15 @@
             <property name="visible">True</property>
             <property name="can_focus">False</property>
             <child>
-              <object class="GtkScrolledWindow">
+              <object class="GtkBox">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
+                <property name="can_focus">False</property>
-                <property name="shadow_type">in</property>
+                <property name="orientation">vertical</property>
                 <child>
-                  <object class="GtkViewport">
+                  <object class="GtkScrolledWindow">
                     <property name="visible">True</property>
-                    <property name="can_focus">False</property>
+                    <property name="can_focus">True</property>
+                    <property name="shadow_type">in</property>
                     <child>
                       <object class="GtkIconView" id="Desktop">
                         <property name="visible">True</property>
@@ -93,6 +102,63 @@
                       </object>
                     </child>
                   </object>
+                  <packing>
+                    <property name="expand">True</property>
+                    <property name="fill">True</property>
+                    <property name="position">0</property>
+                  </packing>
+                </child>
+                <child>
+                  <object class="GtkBox">
+                    <property name="visible">True</property>
+                    <property name="can_focus">False</property>
+                    <child>
+                      <object class="GtkColorButton" id="brushColorProp">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="receives_default">True</property>
+                        <property name="use_alpha">True</property>
+                        <property name="rgba">rgb(138,226,52)</property>
+                        <signal name="color-set" handler="onColorSet" swapped="no"/>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">True</property>
+                        <property name="position">1</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkDrawingArea" id="drawArea">
+                        <property name="height_request">60</property>
+                        <property name="visible">True</property>
+                        <property name="can_focus">False</property>
+                        <signal name="configure-event" handler="onConfigure" swapped="no"/>
+                        <signal name="draw" handler="onDraw" swapped="no"/>
+                      </object>
+                      <packing>
+                        <property name="expand">True</property>
+                        <property name="fill">True</property>
+                        <property name="position">2</property>
+                      </packing>
+                    </child>
+                    <child>
+                      <object class="GtkSpinButton">
+                        <property name="visible">True</property>
+                        <property name="can_focus">True</property>
+                        <property name="adjustment">brushSizeProp</property>
+                      </object>
+                      <packing>
+                        <property name="expand">False</property>
+                        <property name="fill">True</property>
+                        <property name="position">2</property>
+                      </packing>
+                    </child>
+                  </object>
+                  <packing>
+                    <property name="expand">False</property>
+                    <property name="fill">True</property>
+                    <property name="position">2</property>
+                  </packing>
                 </child>
               </object>
               <packing>

src/Pytop/signal_classes/DrawSignals.py

@@ -0,0 +1,164 @@
+#!/usr/bin/python3
+
+
+# Python Imports
+from __future__ import division
+import cairo, psutil
+
+
+# GTK Imports
+from gi.repository import GObject
+from gi.repository import GLib
+
+
+
+
+
+class DrawSignals:
+    def __init__(self, settings):
+        self.settings = settings
+        self.builder  = self.settings.returnBuilder()
+
+        self.drawArea         = self.builder.get_object("drawArea")
+        self.brushSizeProp    = self.builder.get_object("brushSizeProp")
+        self.brushColorProp   = self.builder.get_object("brushColorProp")
+        self.messageWidget    = self.builder.get_object("messageWidget")
+        self.messageLabel     = self.builder.get_object("messageLabel")
+
+        self.cpu_percents     = []
+        self.doDrawBackground = False
+        self.isDrawing        = False
+        self.surface          = None
+        self.aw               = None  # Draw area width
+        self.ah               = None  # Draw area height
+        self.xStep            = None  # For x-axis 60 sec steps
+        self.yStep            = None  # For y-axis %s
+
+        rgba                  = self.brushColorProp.get_rgba()
+        self.brushColorVal    = [rgba.red, rgba.green, rgba.blue, rgba.alpha]
+        self.brushSizeVal     = self.brushSizeProp.get_value()
+        self.updateSpeed      = 100 # 1 sec = 1000ms
+
+        self.success          = "#88cc27"
+        self.warning          = "#ffa800"
+        self.error            = "#ff0000"
+
+        self.good             = [0.53, 0.8, 0.15, 1.0]
+        self.warning          = [1.0, 0.66, 0.0, 1.0]
+        self.danger           = [1.0, 0.0, 0.0, 1.0]
+
+        # Note: y-axis on draw area goes from top to bottom when increasing.
+        # Need to do the math such that you subtract from max height to start from bottom to go up
+        # self.linePoints.append([1 * xStep, ah - (23 * yStep)]) # 23%
+        # self.linePoints.append([2 * xStep, ah - (60 * yStep)]) # 60%
+        # self.drawPointLine()
+        # del self.linePoints[0:1]
+        # self.linePoints.append([3 * xStep, ah - (44 * yStep)]) # 44%
+
+
+
+    def updateCPUPoints(self):
+        # Clears screen when enough points exist and unshifts the
+        # first point to keep fixed range
+        self.drawBackground(self.brush, self.aw, self.ah)
+        del self.cpu_percents[0:1]
+
+        precent = psutil.cpu_percent()
+        self.cpu_percents.append(precent)
+        self.drawPointLine() # Will re-draw every point
+        self.drawArea.queue_draw()
+
+        return True
+
+
+    def drawPointLine(self):
+        self.brush.set_line_width(self.brushSizeVal)
+        self.brush.set_line_cap(1) # 0 = BUTT, 1 = ROUND, 2 = SQUARE
+
+        oldX = 0.0
+        oldP = 0.0
+        i    = 1
+        for p in self.cpu_percents:
+            # set color depending on usage...
+            rgba = self.brushColorVal
+            if p > 50.0:
+                rgba = self.warning
+            if p > 85.0:
+                rgba = self.danger
+
+            self.brush.set_source_rgba(rgba[0], rgba[1], rgba[2], rgba[3])
+
+            # Movbe to prev. point if any
+            if oldP is not 0.0 and oldX is not 0.0:
+                x  = oldX
+                y  = float(self.ah) - (oldP * self.yStep)
+                self.brush.move_to(x, y)
+
+            # Draw line to the new point from old point
+            x2 = i * self.xStep
+            y2 = float(self.ah) - (p * self.yStep)
+            self.brush.line_to(x2, y2)
+            self.brush.stroke()
+
+            # Collect info to use as prev. pint
+            oldX = x2
+            oldP = p
+            i    += 1
+
+
+    def onConfigure(self, area, eve, data = None):
+        aw           = area.get_allocated_width()
+        ah           = area.get_allocated_height()
+        self.aw      = aw
+        self.ah      = ah
+        self.xStep   = aw / 200  # For x-axis
+        self.yStep   = ah / 100 # For y-axis %s
+        self.surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, aw, ah)
+        self.brush   = cairo.Context(self.surface)
+
+        self.drawBackground(self.brush, aw, ah)
+        if not self.isDrawing:
+            self.fillCPUPercents()
+            self.startCPUGraph()
+            self.isDrawing = True
+
+        return False
+
+    # Fill with y bank with 50%s
+    def fillCPUPercents(self):
+        self.cpu_percents = [50.0] * 198
+
+
+    # Draw background white
+    def drawBackground(self, brush, aw, ah):
+        brush.rectangle(0, 0, aw, ah) # x, y, width, height
+        brush.set_source_rgba(1, 1, 1, 1.0) # x, y, width, height
+
+        if not self.doDrawBackground: # If transparent or white
+            self.brush.set_operator(0);
+
+        brush.fill()
+        self.brush.set_operator(1); # reset the brush after filling bg...
+
+
+    # Starting graph generation
+    def startCPUGraph(self):
+        GObject.timeout_add(self.updateSpeed, self.updateCPUPoints)
+
+
+    def onDraw(self, area, brush):
+        if self.surface is not None:
+            brush.set_source_surface(self.surface, 0.0, 0.0)
+            brush.paint()
+        else:
+            print("No surface info...")
+
+        return False
+
+
+    def onColorSet(self, widget):
+        rgba = widget.get_rgba()
+        self.brushColorVal = [rgba.red, rgba.green, rgba.blue, rgba.alpha]
+
+    def onBrushSizeChange(self, widget):
+        self.brushSizeVal = self.brushSizeProp.get_value()

src/Pytop/signal_classes/__init__.py

@@ -1,3 +1,4 @@
 from signal_classes.CrossClassSignals import CrossClassSignals
+from signal_classes.DrawSignals import DrawSignals
 from signal_classes.GridSignals import GridSignals
 from signal_classes.TaskbarSignals import TaskbarSignals