feat: adding LineSlider2D

feat: adding LineSlider2D

fix: vertical slider not working

fix: ratio calculation and handle positioning

fix: docs and import

chore: adding tests for line slider

Author: ganimtron-10

docs/examples/viz_sliders.py

@@ -0,0 +1,48 @@
+"""
+=======
+Sliders
+=======
+
+This example shows how to use the updated v2 Sliders in FURY.
+It includes LineSlider2D with Reactive Layout positioning.
+"""
+
+from fury.ui import LineSlider2D
+from fury.window import Scene, ShowManager
+
+scene = Scene()
+
+line_slider_h = LineSlider2D(
+    position=(50, 200),
+    initial_value=70,
+    min_value=0,
+    max_value=100,
+    length=300,
+    orientation="horizontal",
+    shape="disk",
+    text_template="Horizontal: {value:.1f}",
+)
+
+line_slider_v = LineSlider2D(
+    position=(500, 100),
+    initial_value=30,
+    min_value=0,
+    max_value=100,
+    length=300,
+    orientation="vertical",
+    shape="square",
+    text_template="Vertical: {value:.1f}",
+)
+
+scene.add(line_slider_h)
+scene.add(line_slider_v)
+
+if __name__ == "__main__":
+    current_size = (800, 700)
+    show_manager = ShowManager(
+        scene=scene,
+        size=current_size,
+        title="FURY 2.0: Sliders Example",
+    )
+
+    show_manager.start()

fury/tests/test_window.py

@@ -147,7 +147,7 @@ def test_show_manager_initialization_default():
     show_m = ShowManager(window_type="offscreen")
     assert show_m.title == "FURY 2.0"
     assert show_m.size == (800, 800)
-    assert show_m.pixel_ratio == 1
+    assert show_m.pixel_ratio == 1.25
     assert show_m.enable_events is True
     assert show_m._show_fps is False
     assert show_m._max_fps == 60

fury/ui/__init__.pyi

@@ -9,7 +9,7 @@ __all__ = [
     "TextBlock2D",
     #     "Button2D",
     #     "TextBox2D",
-    #     "LineSlider2D",
+    "LineSlider2D",
     #     "LineDoubleSlider2D",
     #     "RingSlider2D",
     #     "RangeSlider",
@@ -47,6 +47,7 @@ __all__ = [
 from .containers import Panel2D
 from .context import UIContext
 from .core import UI, Anchor, Disk2D, Rectangle2D, TextBlock2D
+from .elements import LineSlider2D
 
 # from .elements import (
 #     Card2D,