[libadwaita/wip/exalm/accent: 3/13] tmp: Add a button demo

[Alexander Mikhaylenko <alexm src gnome org>]

commit 306d892711a254a3a547e3a3713d9e4828e73a68
Author: Alexander Mikhaylenko <alexm gnome org>
Date:   Sun May 2 19:03:15 2021 +0500

    tmp: Add a button demo

 examples/meson.build                 |   1 +
 examples/org.gnome.Adwaita.Demo.json |   2 +-
 examples/test.py                     | 123 +++++++++++++++++++++++++++++++++++
 3 files changed, 125 insertions(+), 1 deletion(-)
---
diff --git a/examples/meson.build b/examples/meson.build
index 798b23cf..8de8f253 100644
--- a/examples/meson.build
+++ b/examples/meson.build
@@ -25,4 +25,5 @@ adwaita_demo = executable('adwaita-@0@-demo'.format(apiversion),
   install: true,
 )
 
+install_data ('test.py', install_dir: get_option('bindir'))
 endif
diff --git a/examples/org.gnome.Adwaita.Demo.json b/examples/org.gnome.Adwaita.Demo.json
index 9b86dd68..d40a2c8f 100644
--- a/examples/org.gnome.Adwaita.Demo.json
+++ b/examples/org.gnome.Adwaita.Demo.json
@@ -3,7 +3,7 @@
   "runtime": "org.gnome.Platform",
   "runtime-version": "master",
   "sdk": "org.gnome.Sdk",
-  "command": "adwaita-1-demo",
+  "command": "test.py",
   "finish-args": [
     "--device=all",
     "--share=ipc",
diff --git a/examples/test.py b/examples/test.py
new file mode 100755
index 00000000..c797ce73
--- /dev/null
+++ b/examples/test.py
@@ -0,0 +1,123 @@
+#!/usr/bin/python3
+
+import gi
+
+gi.require_version('Gtk', '4.0')
+gi.require_version('Adw', '1')
+
+from gi.repository import Gtk, Adw
+
+dark = False
+hc = False
+
+def update_theme(widget):
+    s = widget.get_settings()
+    if hc:
+        s.props.gtk_theme_name = 'Adwaita-hc-dark' if dark else 'Adwaita-hc'
+    else:
+        s.props.gtk_theme_name = 'Adwaita-dark' if dark else 'Adwaita'
+
+def toggle_dark_cb(btn):
+    global dark
+    dark = btn.props.active
+    update_theme(btn)
+
+def toggle_high_contrast_cb(btn):
+    global hc
+    hc = btn.props.active
+    update_theme(btn)
+
+def toggle_osd_cb(btn, grid):
+    if btn.props.active:
+        grid.add_css_class('osd')
+    else:
+        grid.remove_css_class('osd')
+
+def create_buttons(grid):
+    STATES = [
+        ('normal',  Gtk.StateFlags.NORMAL),
+        ('hover',    Gtk.StateFlags.PRELIGHT),
+        ('active',   Gtk.StateFlags.PRELIGHT | Gtk.StateFlags.ACTIVE),
+        ('checked',  Gtk.StateFlags.CHECKED),
+        ('ch+h',     Gtk.StateFlags.CHECKED | Gtk.StateFlags.PRELIGHT),
+        ('ch+a',     Gtk.StateFlags.CHECKED | Gtk.StateFlags.PRELIGHT | Gtk.StateFlags.ACTIVE),
+        ('disabled', Gtk.StateFlags.INSENSITIVE),
+        ('dis+ch',   Gtk.StateFlags.INSENSITIVE | Gtk.StateFlags.CHECKED),
+        ('drop',     Gtk.StateFlags.DROP_ACTIVE),
+    ]
+
+    RELIEF = [None, 'flat', 'outline']
+    COLORS = [None, 'suggested-action', 'destructive-action']
+    classes = [[r, c] for c in COLORS for r in RELIEF]
+    classes = [[c for c in a if c is not None] for a in classes]
+    classes.append(["osd"])
+
+    for j,(n,_) in enumerate(STATES):
+        label = Gtk.Label(label = n, margin_top = 12)
+        label.add_css_class('dim-label')
+        grid.attach(label, j + 1, 0, 1, 1)
+
+    for i,c in enumerate(classes):
+        label = Gtk.Label(label = '.'.join(c), xalign = 1, margin_start = 12)
+        label.add_css_class('dim-label')
+        grid.attach(label, 0, i + 1, 1, 1)
+
+        for j,(_,s) in enumerate(STATES):
+            btn = Gtk.Button(label = 'button', css_classes = c)
+            btn.set_state_flags(s, False)
+            grid.attach(btn, j + 1, i + 1, 1, 1)
+
+            l = len(RELIEF)
+            if i % l == l - 1:
+                btn.props.margin_bottom = 6
+
+            if i == len(classes) - 1:
+                btn.props.margin_bottom = 6
+
+            if j % 3 == 0:
+                btn.props.margin_start = 6
+
+            if j == len(STATES) - 1:
+                btn.props.margin_end = 6
+
+def startup_cb(app):
+    Adw.init()
+
+def activate_cb(app):
+    dark_btn = Gtk.ToggleButton(label = 'Dark')
+    hc_btn = Gtk.ToggleButton(label = 'HC')
+    osd_btn = Gtk.ToggleButton(label = 'OSD')
+
+    header = Gtk.HeaderBar()
+    header.pack_start(dark_btn)
+    header.pack_start(hc_btn)
+    header.pack_start(osd_btn)
+
+    grid = Gtk.Grid(
+        can_target = False,
+        can_focus = False,
+        column_spacing = 6,
+        row_spacing = 6,
+        vexpand = True
+    )
+    create_buttons(grid)
+
+    box = Gtk.Box(orientation = Gtk.Orientation.VERTICAL)
+    box.append(header)
+    box.append(grid)
+
+    dark_btn.connect('toggled', toggle_dark_cb)
+    hc_btn.connect('toggled', toggle_high_contrast_cb)
+    osd_btn.connect('toggled', toggle_osd_cb, grid)
+
+    win = Adw.ApplicationWindow(
+        application = app,
+        title = 'Buttons',
+        child = box
+    )
+    win.present()
+
+app = Gtk.Application(application_id = 'org.gnome.Adwaita.Demo')
+app.connect('startup', startup_cb)
+app.connect('activate', activate_cb)
+app.run()