Add ShowFonts app

internal_filesystem/apps/com.micropythonos.showfonts/META-INF/MANIFEST.JSON

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+{
+"name": "ShowFonts",
+"publisher": "MicroPythonOS",
+"short_description": "Show installed fonts",
+"long_description": "Visualize the installed fonts so the user can check them out.",
+"icon_url": "https://apps.micropythonos.com/apps/com.micropythonos.showfonts/icons/com.micropythonos.showfonts_0.0.1_64x64.png",
+"download_url": "https://apps.micropythonos.com/apps/com.micropythonos.showfonts/mpks/com.micropythonos.showfonts_0.0.1.mpk",
+"fullname": "com.micropythonos.showfonts",
+"version": "0.0.1",
+"category": "development",
+"activities": [
+    {
+      "entrypoint": "assets/showfonts.py",
+      "classname": "ShowFonts",
+      "intent_filters": [
+        {
+          "action": "main",
+          "category": "launcher"
+        }
+      ]
+    }
+  ]
+}
+

internal_filesystem/apps/com.micropythonos.showfonts/assets/showfonts.py

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+from mpos.apps import Activity
+import lvgl as lv
+
+class ShowFonts(Activity):
+    def onCreate(self):
+        screen = lv.obj()
+        #cont.set_size(320, 240)
+        #cont.set_scrollbar_mode(lv.SCROLLBAR_MODE.AUTO)
+        #cont.set_scroll_dir(lv.DIR.VER)
+
+        # Make the screen focusable so it can be scrolled with the arrow keys
+        focusgroup = lv.group_get_default()
+        if focusgroup:
+            focusgroup.add_obj(screen)
+
+        fonts = [
+            (lv.font_montserrat_16, "Montserrat 16"),
+            (lv.font_unscii_16, "Unscii 16"),
+            (lv.font_unscii_8, "Unscii 8"),
+            (lv.font_dejavu_16_persian_hebrew, "DejaVu 16 Persian/Hebrew"),
+        ]
+
+        dsc = lv.font_glyph_dsc_t()
+        y = 4
+
+        for font, name in fonts:
+            title = lv.label(screen)
+            title.set_text(name)
+            title.set_style_text_font(lv.font_montserrat_16, 0)
+            title.set_pos(4, y)
+            y += title.get_height() + 20
+
+            line_height = font.get_line_height() + 4
+            x = 4
+
+            for cp in range(0x20, 0xFFFF + 1):
+                if font.get_glyph_dsc(font, dsc, cp, cp):
+                    lbl = lv.label(screen)
+                    lbl.set_style_text_font(font, 0)
+                    lbl.set_text(chr(cp))
+                    lbl.set_pos(x, y)
+
+                    x += 20
+                    if x + 20 > screen.get_width():
+                        x = 4
+                        y += line_height
+
+            y += line_height
+
+        screen.set_height(y + 20)
+        self.setContentView(screen)

internal_filesystem/apps/com.micropythonos.showfonts/generate_icon.py

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+#!/usr/bin/env python3
+"""
+Generate a 64x64 PNG icon with transparent background for the "ShowFonts" app.
+The icon features a stylized bold 'F' with a subtle font preview overlay,
+using modern flat design with vibrant colors.
+"""
+
+import cairo
+from pathlib import Path
+
+def create_showfonts_icon(output_path: str = "ShowFonts_icon.png"):
+    # Icon dimensions
+    WIDTH, HEIGHT = 64, 64
+    RADIUS = 12  # Corner radius for rounded square background
+    
+    # Create surface with alpha channel
+    surface = cairo.ImageSurface(cairo.FORMAT_ARGB32, WIDTH, HEIGHT)
+    ctx = cairo.Context(surface)
+    
+    # Fully transparent background
+    ctx.set_source_rgba(0, 0, 0, 0)
+    ctx.paint()
+    
+    # === Draw subtle rounded background (optional soft glow base) ===
+    ctx.save()
+    rounded_rect(ctx, 4, 4, 56, 56, RADIUS)
+    ctx.set_source_rgba(0.1, 0.1, 0.1, 0.15)  # Very subtle dark overlay
+    ctx.fill()
+    ctx.restore()
+    
+    # === Main colorful gradient background ===
+    ctx.save()
+    rounded_rect(ctx, 6, 6, 52, 52, RADIUS - 2)
+    
+    # Create radial gradient for depth
+    grad = cairo.RadialGradient(32, 20, 5, 32, 32, 30)
+    grad.add_color_stop_rgb(0, 0.25, 0.6, 1.0)      # Bright blue center
+    grad.add_color_stop_rgb(0.7, 0.1, 0.4, 0.9)      # Mid tone
+    grad.add_color_stop_rgb(1, 0.05, 0.25, 0.7)     # Deep blue edge
+    ctx.set_source(grad)
+    ctx.fill()
+    ctx.restore()
+    
+    # === Draw bold stylized 'F' ===
+    ctx.save()
+    ctx.select_font_face("Sans", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_BOLD)
+    ctx.set_font_size(38)
+    
+    # Position 'F' centered
+    x_bearing, y_bearing, text_width, text_height = ctx.text_extents("F")[:4]
+    x = 32 - text_width / 2 - x_bearing
+    y = 38 - text_height / 2 - y_bearing
+    
+    ctx.move_to(x, y)
+    ctx.set_source_rgb(1.0, 1.0, 1.0)  # Pure white
+    ctx.show_text("F")
+    ctx.restore()
+    
+    # === Add small font preview overlay (Aa) ===
+    ctx.save()
+    ctx.select_font_face("Serif", cairo.FONT_SLANT_NORMAL, cairo.FONT_WEIGHT_NORMAL)
+    ctx.set_font_size(11)
+    
+    extents = ctx.text_extents("Aa")
+    x = 32 - extents.width / 2 - extents.x_bearing
+    y = 50 - extents.height / 2 - extents.y_bearing
+    
+    # Shadow for depth
+    ctx.move_to(x + 0.5, y + 0.5)
+    ctx.set_source_rgba(0, 0, 0, 0.3)
+    ctx.show_text("Aa")
+    
+    # Main text
+    ctx.move_to(x, y)
+    ctx.set_source_rgb(1.0, 1.0, 0.7)  # Light yellow
+    ctx.show_text("Aa")
+    ctx.restore()
+    
+    # === Add subtle highlight on 'F' ===
+    ctx.save()
+    ctx.set_line_width(1.5)
+    ctx.set_source_rgba(1, 1, 1, 0.4)
+    
+    # Top bar highlight
+    ctx.move_to(14, 20)
+    ctx.line_to(26, 20)
+    ctx.stroke()
+    
+    # Middle bar highlight
+    ctx.move_to(14, 29)
+    ctx.line_to(23, 29)
+    ctx.stroke()
+    ctx.restore()
+    
+    # Save to PNG
+    surface.write_to_png(output_path)
+    print(f"Icon saved to: {Path(output_path).resolve()}")
+
+def rounded_rect(ctx, x, y, width, height, radius):
+    """Draw a rounded rectangle path"""
+    from math import pi
+    ctx.move_to(x + radius, y)
+    ctx.arc(x + width - radius, y + radius, radius, pi * 1.5, pi * 2)
+    ctx.arc(x + width - radius, y + height - radius, radius, 0, pi * 0.5)
+    ctx.arc(x + radius, y + height - radius, radius, pi * 0.5, pi)
+    ctx.arc(x + radius, y + radius, radius, pi, pi * 1.5)
+    ctx.close_path()
+
+if __name__ == "__main__":
+    create_showfonts_icon()