Replace the inherited SQLite logo with a four-provider mark

dist/chocolatey/sqlquery.nuspec

@@ -33,12 +33,12 @@ This is a nuspec. It mostly adheres to https://docs.nuget.org/create/Nuspec-Refe
     <title>SQL Query Analyzer</title>
     <authors>Christian Helle</authors>
     <projectUrl>https://github.com/christianhelle/sqlquery</projectUrl>
-    <iconUrl>https://github.com/christianhelle/sqlquery/blob/eaed37e7ba55f4faa6cd8402eb5fcc8aacccb312/images/sqlite-icon.png</iconUrl>
+    <iconUrl>https://raw.githubusercontent.com/christianhelle/sqlquery/main/images/logo.png</iconUrl>
     <copyright>Christian Resma Helle 2015</copyright>
-    <licenseUrl>https://raw.githubusercontent.com/christianhelle/sqlquery/master/LICENSE</licenseUrl>
+    <licenseUrl>https://raw.githubusercontent.com/christianhelle/sqlquery/main/LICENSE</licenseUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>
     <projectSourceUrl>https://github.com/christianhelle/sqlquery</projectSourceUrl>
-    <docsUrl>https://github.com/christianhelle/sqlquery/blob/master/README.md</docsUrl>
+    <docsUrl>https://github.com/christianhelle/sqlquery/blob/main/README.md</docsUrl>
     <bugTrackerUrl>https://github.com/christianhelle/sqlquery/issues</bugTrackerUrl>
     <tags>sqlite postgresql sql-server mysql mariadb database</tags>
     <summary>A fast and lightweight cross-platform GUI tool for querying and manipulating SQLite, PostgreSQL, SQL Server and MySQL databases</summary>

dist/icons/generate-icons.py

@@ -0,0 +1,152 @@
+#!/usr/bin/env python3
+"""Generate every raster icon in the repository from the quad disc logo.
+
+``src/resources/logo.svg`` is the design master. There is no SVG rasterizer in
+the toolchain, so the geometry constants below mirror that file by hand -- if
+you change one, change the other. Everything is drawn at 8x and downscaled with
+LANCZOS, which is what gives the wedge edges their antialiasing.
+
+    python dist/icons/generate-icons.py
+
+Requires Pillow. Rewrites icon.ico, icon.icns, the Linux hicolor PNG, and the
+two logo.png copies used by the docs site and the Chocolatey package.
+"""
+
+import struct
+import sys
+from pathlib import Path
+
+from PIL import Image, ImageDraw
+
+# --- geometry, on the 256 unit canvas of logo.svg -------------------------
+
+CANVAS = 256.0
+CENTRE = 128.0
+OUTER_RADIUS = 120.0
+HUB_RADIUS = 44.0
+CHEVRON = [(116.0, 107.0), (139.0, 128.0), (116.0, 149.0)]
+CHEVRON_WIDTH = 12.0
+
+# Clockwise from the top-right quadrant. Each colour nods at the provider it
+# stands for without being that vendor's exact brand hex.
+WEDGES = [
+    ("#1B9AAA", 273.0),  # SQLite
+    ("#D9453D", 3.0),    # SQL Server
+    ("#4B6BD6", 93.0),   # PostgreSQL
+    ("#E8973A", 183.0),  # MySQL / MariaDB
+]
+HUB_COLOUR = "#16202B"
+CHEVRON_COLOUR = "#FFFFFF"
+
+GAP_DEGREES = 3.0
+SUPERSAMPLE = 8
+
+# Below this the chevron collapses into a smudge, so the hub shrinks to a plain
+# dot and the gaps widen enough to survive the downscale.
+SIMPLIFY_AT_OR_BELOW = 24
+SMALL_GAP_DEGREES = 5.0
+SMALL_HUB_RADIUS = 34.0
+
+# --- drawing --------------------------------------------------------------
+
+
+def render(size):
+    """Return an RGBA logo `size` pixels square."""
+    simple = size <= SIMPLIFY_AT_OR_BELOW
+    gap = SMALL_GAP_DEGREES if simple else GAP_DEGREES
+
+    big = size * SUPERSAMPLE
+    scale = big / CANVAS
+    image = Image.new("RGBA", (big, big), (0, 0, 0, 0))
+    draw = ImageDraw.Draw(image)
+
+    centre = CENTRE * scale
+    outer = OUTER_RADIUS * scale
+    box = [centre - outer, centre - outer, centre + outer, centre + outer]
+    for colour, start in WEDGES:
+        draw.pieslice(box, start + gap, start + 90.0 - gap, fill=colour)
+
+    hub = (SMALL_HUB_RADIUS if simple else HUB_RADIUS) * scale
+    draw.ellipse(
+        [centre - hub, centre - hub, centre + hub, centre + hub],
+        fill=HUB_COLOUR,
+    )
+
+    if not simple:
+        points = [(x * scale, y * scale) for x, y in CHEVRON]
+        width = CHEVRON_WIDTH * scale
+        draw.line(points, fill=CHEVRON_COLOUR, width=round(width), joint="curve")
+        # Pillow has no round cap, so cap the stroke by hand.
+        for x, y in points:
+            draw.ellipse(
+                [x - width / 2, y - width / 2, x + width / 2, y + width / 2],
+                fill=CHEVRON_COLOUR,
+            )
+
+    return image.resize((size, size), Image.Resampling.LANCZOS)
+
+
+# --- containers -----------------------------------------------------------
+
+ICO_SIZES = [16, 24, 32, 48, 64, 128, 256]
+
+# type -> pixel size. ic11..ic14 are the retina variants of ic04, ic05, ic07
+# and ic08, and hold a plain PNG at twice the nominal size.
+ICNS_CHUNKS = [
+    (b"ic04", 16),
+    (b"ic05", 32),
+    (b"ic07", 128),
+    (b"ic08", 256),
+    (b"ic09", 512),
+    (b"ic10", 1024),
+    (b"ic11", 32),
+    (b"ic12", 64),
+    (b"ic13", 256),
+    (b"ic14", 512),
+]
+
+
+def write_ico(path, frames):
+    largest = frames[max(frames)]
+    largest.save(
+        path,
+        format="ICO",
+        sizes=[(s, s) for s in sorted(frames)],
+        append_images=[frames[s] for s in sorted(frames) if s != max(frames)],
+    )
+
+
+def write_icns(path, frames):
+    import io
+
+    chunks = []
+    for kind, size in ICNS_CHUNKS:
+        buffer = io.BytesIO()
+        frames[size].save(buffer, format="PNG")
+        payload = buffer.getvalue()
+        chunks.append(kind + struct.pack(">I", len(payload) + 8) + payload)
+
+    body = b"".join(chunks)
+    path.write_bytes(b"icns" + struct.pack(">I", len(body) + 8) + body)
+
+
+def main():
+    root = Path(__file__).resolve().parents[2]
+
+    wanted = sorted(set(ICO_SIZES) | {size for _, size in ICNS_CHUNKS} | {512})
+    frames = {size: render(size) for size in wanted}
+
+    write_ico(root / "src/resources/icon.ico", {s: frames[s] for s in ICO_SIZES})
+    write_icns(root / "src/resources/icon.icns", frames)
+
+    frames[256].save(
+        root / "src/linux/usr/share/icons/hicolor/256x256/apps/sqlquery.png"
+    )
+    frames[512].save(root / "images/logo.png")
+    frames[512].save(root / "docs/logo.png")
+
+    print("wrote icon.ico, icon.icns, sqlquery.png, images/logo.png, docs/logo.png")
+
+
+if __name__ == "__main__":
+    sys.exit(main())

docs/index.html

@@ -6,13 +6,13 @@
     <title>SQL Query Analyzer - Documentation</title>
     <meta name="description" content="A lightweight and efficient desktop utility for managing SQLite, PostgreSQL, SQL Server and MySQL databases">
     <link rel="stylesheet" href="styles.css">
-    <link rel="icon" href="sqlite-icon.png" type="image/png">
+    <link rel="icon" href="logo.png" type="image/png">
 </head>
 <body>
     <nav class="navbar">
         <div class="nav-container">
             <div class="nav-brand">
-                <img src="sqlite-icon.png" alt="SQL Query Analyzer" class="brand-icon">
+                <img src="logo.png" alt="SQL Query Analyzer" class="brand-icon">
                 <span class="brand-text">SQL Query Analyzer</span>
             </div>
             <ul class="nav-menu">
@@ -38,7 +38,7 @@
             <div class="container">
                 <div class="hero-content">
                     <h1 class="hero-title">
-                        <img src="sqlite-icon.png" alt="SQL Query Analyzer" class="hero-icon">
+                        <img src="logo.png" alt="SQL Query Analyzer" class="hero-icon">
                         SQL Query Analyzer
                     </h1>
                     <p class="hero-subtitle">
@@ -370,7 +370,7 @@ <h4>Resources</h4>
                     <h4>Community</h4>
                     <ul>
                         <li><a href="https://github.com/christianhelle/sqlquery/discussions">Discussions</a></li>
-                        <li><a href="https://github.com/christianhelle/sqlquery/blob/master/CHANGELOG.md">Changelog</a></li>
+                        <li><a href="https://github.com/christianhelle/sqlquery/blob/main/CHANGELOG.md">Changelog</a></li>
                     </ul>
                 </div>
                 <div class="footer-section">