refactor(display): extract tile layout logic to library helper class

boards/esp32-s3-lcd-43/DisplayDriverGFX.cpp

@@ -5,9 +5,11 @@
 #include "board_config.h"
 
 #include <Arduino.h>
+#include <KlubhausCore.h>
 
 // ── Globals ──
 static LGFX* _gfx = nullptr;
+extern DisplayManager display;
 
 // ── Forward declarations ──
 static void initDisplay();
@@ -52,9 +54,9 @@ void DisplayDriverGFX::setBacklight(bool on) {
     }
 }
 
-int DisplayDriverGFX::width() { return DISP_W; }
+int DisplayDriverGFX::width() { return _gfx ? _gfx->width() : DISP_W; }
 
-int DisplayDriverGFX::height() { return DISP_H; }
+int DisplayDriverGFX::height() { return _gfx ? _gfx->height() : DISP_H; }
 
 // ── Touch handling ──
 
@@ -96,22 +98,6 @@ int DisplayDriverGFX::dashboardTouch(int x, int y) {
     return row * cols + col;
 }
 
-void DisplayDriverGFX::drawTileAt(int x, int y, int w, int h, const char* label, uint16_t bgColor) {
-    // Tile background (use fillRect - LovyanGFX may not have fillRoundRect)
-    _gfx->fillRect(x, y, w, h, bgColor);
-
-    // Tile border
-    _gfx->drawRect(x, y, w, h, 0xFFFF);
-
-    // Tile label
-    _gfx->setTextColor(0xFFFF);
-    _gfx->setTextSize(2);
-    int textLen = strlen(label);
-    int textW = textLen * 12;
-    _gfx->setCursor(x + w/2 - textW/2, y + h/2 - 10);
-    _gfx->print(label);
-}
-
 HoldState DisplayDriverGFX::updateHold(unsigned long holdMs) {
     HoldState state;
 
@@ -256,24 +242,18 @@ void DisplayDriverGFX::drawDashboard(const ScreenState& state) {
     _gfx->setCursor(DISP_W - 100, 10);
     _gfx->printf("WiFi:%s", state.wifiSsid.length() > 0 ? "ON" : "OFF");
 
-    // Tiles: 2 rows × 4 columns
-    constexpr int cols = 4;
-    constexpr int rows = 2;
-    constexpr int tileW = DISP_W / cols;
-    constexpr int tileH = (DISP_H - 30) / rows;
-    constexpr int margin = 8;
+    // Get tile layouts from library helper
+    int tileCount = display.calculateDashboardLayouts(30, 8);
+    const TileLayout* layouts = display.getTileLayouts();
 
-    // Draw placeholder tiles (8 total for 2x4 grid)
     const char* tileLabels[] = { "1", "2", "3", "4", "5", "6", "7", "8" };
 
-    for(int i = 0; i < 8; i++) {
-        int col = i % cols;
-        int row = i / cols;
-
-        int x = col * tileW + margin;
-        int y = 30 + row * tileH + margin;
-        int w = tileW - 2 * margin;
-        int h = tileH - 2 * margin;
+    for(int i = 0; i < tileCount && i < 8; i++) {
+        const TileLayout& lay = layouts[i];
+        int x = lay.x;
+        int y = lay.y;
+        int w = lay.w;
+        int h = lay.h;
 
         // Tile background
         _gfx->fillRoundRect(x, y, w, h, 8, 0x0220);
@@ -281,10 +261,10 @@ void DisplayDriverGFX::drawDashboard(const ScreenState& state) {
         // Tile border
         _gfx->drawRoundRect(x, y, w, h, 8, 0xFFFF);
 
-        // Tile number
+        // Tile label
         _gfx->setTextColor(0xFFFF);
         _gfx->setTextSize(2);
-        _gfx->setCursor(x + w / 2 - 10, y + h / 2 - 10);
+        _gfx->setCursor(x + w/2 - 10, y + h/2 - 10);
         _gfx->print(tileLabels[i]);
     }
 }

boards/esp32-s3-lcd-43/DisplayDriverGFX.h

@@ -18,9 +18,6 @@ public:
     int width() override;
     int height() override;
 
-    // Dashboard tiles - library handles grid math, we just draw
-    void drawTileAt(int x, int y, int w, int h, const char* label, uint16_t bgColor) override;
-
     // ── Internal ──
     static DisplayDriverGFX& instance();