Q-W2v: split VST god-modules — editor 8 face-axis TUs (+pure layout hoist), processor 3 TUs, component_state_io codec split (extension drops the voice engine), zone_params.h, core/wire putLE; formats frozen, 61/61 green

tests/test_editor_geometry.cpp

@@ -311,6 +311,78 @@ static void testZoneHitTestMisses() {
     CHECK(zoneHitTest(L, 3, L.sampleList.x + 2, midY).zoneIndex == -1);
 }
 
+// --- r11 Sample / Zone face layout (Q-W2v hoist, T2-06) ----------------------
+
+// The band stack at the default 840x620 with a 120px deck: title / hero / cluster /
+// deck in order, hero elastic (absorbs the slack), deck bottom-anchored at kPad.
+static void testSampleBandsStackAndElasticHero() {
+    const SampleBands b = computeSampleBands(840, 620, 120);
+    CHECK(b.title.y == 0 && b.title.height == kTitleHeight && b.title.width == 840);
+    CHECK(b.hero.y == b.title.bottom());
+    CHECK(b.hero.height >= 150);                       // above the hero floor
+    CHECK(b.cluster.y > b.hero.bottom());              // cluster below the hero (+gap)
+    CHECK(b.deck.bottom() == 620 - kPad);              // deck bottom-anchored
+    CHECK(b.deck.height == 120);
+    // Nav buttons right-anchored inside the title band, Browse left of Zone.
+    CHECK(b.navZone.right() == 840 - kPad);
+    CHECK(b.navBrowse.right() < b.navZone.x);
+    CHECK(b.navZone.bottom() <= b.title.bottom());
+    // A too-short window: the hero keeps its floor; the lower bands clip below.
+    const SampleBands s = computeSampleBands(840, 200, 120);
+    CHECK(s.hero.height == 150);
+    CHECK(s.deck.bottom() > 200);  // clips past the window bottom (defensive case)
+}
+
+// The cluster's right-anchored run tiles left of the channel toggle without overlap:
+// rootStrip | preview | velCell(velKnob+velLabel) | curveBtn | (toggle).
+static void testClusterRectsRunAndKnobCentering() {
+    const Rect cluster = Rect::ltrb(0, 500, 840, 552);
+    const ChannelToggleRects chan = channelToggleRects(cluster);
+    CHECK(chan.stereo.right() == 840 - kPad);
+    CHECK(chan.mono.right() == chan.stereo.x);
+    const ClusterRects cr = clusterRects(cluster, chan.mono, 28);
+    CHECK(cr.curveBtn.right() == chan.mono.x - kPad);
+    CHECK(cr.velCell.right() == cr.curveBtn.x - kPad);
+    CHECK(cr.preview.right() == cr.velCell.x - kPad);
+    CHECK(cr.rootStrip.x == cluster.x + kPad);
+    CHECK(cr.rootStrip.right() == cr.preview.x - kPad);
+    // The knob square centers in the cell and the label band sits beneath it.
+    CHECK(cr.velKnob.width == 28);
+    CHECK(cr.velKnob.x - cr.velCell.x == cr.velCell.right() - cr.velKnob.right());
+    CHECK(cr.velLabel.y == cr.velKnob.bottom());
+    CHECK(cr.velLabel.bottom() == cr.velCell.bottom());
+}
+
+// The Zone surface: content below the title; strip below the add/delete row; the note
+// entry fields tile in three ordered segments; deck + curve button split the panel.
+static void testZoneSurfaceLayoutAnchors() {
+    const Rect content = zoneContentArea(840, 620);
+    CHECK(content.y == kTitleHeight && content.bottom() == 620);
+    const Rect back = zoneBackRect(840, 620);
+    CHECK(back.right() == 840 - kPad && back.bottom() <= kTitleHeight);
+    const Rect addR = zoneAddRect(content);
+    const Rect delR = zoneDeleteRect(addR);
+    CHECK(addR.y == content.y + 4);
+    CHECK(delR.x == addR.right() + 8 && delR.y == addR.y);
+    const Rect strip = zonesStripArea(content);
+    CHECK(strip.y == addR.bottom() + 12);
+    CHECK(strip.x == content.x + kPad && strip.right() == content.right() - kPad);
+    const Rect fields = noteEntryFieldsArea(content);
+    CHECK(fields.y == strip.bottom() + 8);
+    const Rect f0 = noteEntryFieldRect(fields, 0);
+    const Rect f1 = noteEntryFieldRect(fields, 1);
+    const Rect f2 = noteEntryFieldRect(fields, 2);
+    CHECK(f0.x < f1.x && f1.x < f2.x);
+    CHECK(f2.right() == fields.right());
+    CHECK(noteEntryFieldRect(fields, 3).width == 0);  // out-of-range -> empty
+    const Rect panel = zonesControlPanel(content);
+    const Rect deck = zonesDeckArea(content);
+    const Rect curve = zonesCurveButton(content);
+    CHECK(panel.y == strip.bottom() + 8 + 18 + 8);
+    CHECK(deck.y == panel.y && deck.right() < curve.x);   // curve column reserved
+    CHECK(curve.right() == panel.right() && curve.y == panel.y);
+}
+
 int main() {
     testContainsHalfOpen();
     testContainsDegenerate();
@@ -332,6 +404,9 @@ int main() {
     testZoneRowStacksAndSelects();
     testZoneRowControlsMapToFields();
     testZoneHitTestMisses();
+    testSampleBandsStackAndElasticHero();
+    testClusterRectsRunAndKnobCentering();
+    testZoneSurfaceLayoutAnchors();
 
     if (g_fail == 0) std::printf("editor_geometry: all tests passed\n");
     return g_fail != 0;