Commit 94e9f6b814c9e96ed81993dca0f85e3e52e5e56f
Parent: cd06a15654d2b106afdbacf186a3663661d68c67
Author: mcol <mcol@posteo.net>
Date: 2020-01-25 00:07:52 +0000
Committer: mcol <mcol@posteo.net>
Committed: 2020-01-25 00:07:52 +0000

create generalised base class for popup windows

qtools/__init__.py Modified

@@ -7,11 +7,14 @@
 gi.require_version('Notify', '0.7')
 from gi.repository import Notify
 
-from libqtile.configurable import Configurable
-from libqtile.command import lazy
+from xcffib.xproto import StackMode
 
+from libqtile import configurable, pangocffi, window
+from libqtile.lazy import lazy
+from libqtile.drawer import Drawer
 
-class Notifier(Configurable):
+
+class Notifier(configurable.Configurable):
     """
     This is a base class for classes with methods that are to be executed upon key
     presses and that generate pop-up notifications.
@@ -28,7 +31,7 @@
             Notifier._is_initted = True
             Notify.init('Qtile')
 
-        Configurable.__init__(self, **config)
+        configurable.Configurable.__init__(self, **config)
         self.add_defaults(Notifier.defaults)
         self.notifier = Notify.Notification.new(
             config.get('summary', 'Notifier'), ''
@@ -42,7 +45,7 @@
         """
         if name.startswith('lazy_'):
             return lazy.function(getattr(self, name[5:]))
-        return Configurable.__getattr__(self, name)
+        return configurable.Configurable.__getattr__(self, name)
 
     @property
     def timeout(self):
@@ -61,3 +64,128 @@
 
     def hide(self):
         self.notifier.hide()
+
+
+ALIGNMENTS = {
+    'left': pangocffi.pango.PANGO_ALIGN_LEFT,
+    'center': pangocffi.pango.PANGO_ALIGN_CENTER,
+    'right': pangocffi.pango.PANGO_ALIGN_RIGHT,
+}
+
+
+class Popup(configurable.Configurable):
+    """
+    This base class can be used to create popup windows for a variety of purposes.
+    """
+    defaults = [
+        ('opacity', 1.0, 'Opacity of notifications.'),
+        ('foreground', '#ffffff', 'Color of text.'),
+        ('background', '#111111', 'Background color.'),
+        ('border', '#111111', 'Border color.'),
+        ('border_width', 4, 'Line width of drawn borders.'),
+        ('corner_radius', None, 'Corner radius for round corners, or None.'),
+        ('font', 'sans', 'Font used in notifications.'),
+        ('fontsize', 14, 'Size of font.'),
+        ('fontshadow', None, 'Color for text shadows, or None for no shadows.'),
+        ('padding', None, 'Padding at sides of text.'),
+        ('text_alignment', 'left', 'Text alignment: left, center or right.'),
+    ]
+
+    def __init__(self, qtile, x=50, y=50, width=256, height=64, **config):
+        configurable.Configurable.__init__(self, **config)
+        self.add_defaults(Popup.defaults)
+        self.qtile = qtile
+
+        win = qtile.conn.create_window(x, y, width, height)
+        win.set_property("QTILE_INTERNAL", 1)
+        self.win = window.Internal(win, qtile)
+        self.win.opacity = self.opacity
+        self.drawer = Drawer(
+            self.qtile, self.win.window.wid, width, height,
+        )
+        self.layout = self.drawer.textlayout(
+            text='',
+            colour=self.foreground,
+            font_family=self.font,
+            font_size=self.fontsize,
+            font_shadow=self.fontshadow,
+            wrap=True,
+            markup=True,
+        )
+        self.layout.layout.set_alignment(ALIGNMENTS[self.text_alignment])
+
+        if self.border_width:
+            self.win.window.configure(borderwidth=self.border_width)
+        if self.corner_radius:
+            self.win.window.round_corners(
+                width, height, self.corner_radius, self.border_width,
+            )
+
+        self.win.handle_Expose = self._handle_Expose
+        self.win.handle_KeyPress = self._handle_KeyPress
+        self.win.handle_ButtonPress = self._handle_ButtonPress
+        self.qtile.windows_map[self.win.window.wid] = self.win
+
+        self.x = self.win.x
+        self.y = self.win.y
+        self.width = self.win.width
+        self.height = self.win.height
+
+    def _handle_Expose(self, e):
+        pass
+
+    def _handle_KeyPress(self, event):
+        pass
+
+    def _handle_ButtonPress(self, event):
+        if event.detail == 1:
+            self.hide()
+
+    @property
+    def text(self):
+        return self.layout.text
+
+    @text.setter
+    def text(self, value):
+        self.layout.text = value
+
+    @property
+    def foreground(self):
+        return self._foreground
+
+    @foreground.setter
+    def foreground(self, value):
+        self._foreground = value
+        if hasattr(self, 'layout'):
+            self.layout.colour = value
+
+    def set_border(self, color):
+        self.win.window.set_attribute(borderpixel=color)
+
+    def clear(self):
+        self.drawer.clear(self.background)
+
+    def draw_text(self):
+        self.layout.draw(
+            self.padding,
+            (self.win.height - self.layout.height) / 2,
+        )
+
+    def draw_window(self):
+        self.drawer.draw()
+
+    def place(self):
+        self.win.place(
+            self.x, self.y, self.width, self.height,
+            self.border_width, self.border, above=True
+        )
+
+    def unhide(self):
+        self.win.unhide()
+        self.win.window.configure(stackmode=StackMode.Above)
+
+    def hide(self):
+        self.win.hide()
+
+    def kill(self):
+        self.win.kill()