new UI system

interfaces/Crafter.Graphics-UITheme.cppm

@@ -0,0 +1,80 @@
+/*
+Crafter®.Graphics
+Copyright (C) 2026 Catcrafts®
+catcrafts.net
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License version 3.0 as published by the Free Software Foundation;
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+*/
+export module Crafter.Graphics:UITheme;
+import std;
+import :UILength;
+import :UIWidgets;
+import :Font;
+
+export namespace Crafter::UI {
+    // Flat theme — named slots, no cascading. Users keep one Theme value
+    // (typically as a member of their scene) and reference its slots on
+    // each widget via `.style(theme.primary)` etc. No automatic
+    // propagation: per-widget overrides win.
+    struct Theme {
+        // Buttons
+        ButtonStyle primary;          // default action ("Save", "Play")
+        ButtonStyle secondary;        // neutral action ("Cancel", "Back")
+        ButtonStyle danger;           // destructive ("Delete", "Quit")
+        ButtonStyle disabled;         // greyed out
+
+        // Inputs
+        InputFieldStyle input;
+
+        // Generic palette
+        Color text          {0.95f, 0.95f, 0.95f, 1.0f};
+        Color textMuted     {0.65f, 0.65f, 0.65f, 1.0f};
+        Color panel         {0.10f, 0.11f, 0.13f, 1.0f};
+        Color panelElevated {0.14f, 0.15f, 0.17f, 1.0f};
+        Color border        {0.30f, 0.30f, 0.30f, 1.0f};
+        Color focusRing     {0.40f, 0.70f, 1.00f, 1.0f};
+
+        // Typography. Optional: not every widget requires the theme's font;
+        // builder methods can override per-instance.
+        Font* defaultFont = nullptr;
+        float defaultFontSize = 16.0f;
+    };
+
+    namespace themes {
+        // A balanced dark-mode theme — matches the kind of game-menu palette
+        // 3DForts uses. Users can copy + tweak.
+        inline Theme default_dark() {
+            Theme t;
+
+            t.primary.background        = Color{0.22f, 0.45f, 0.78f, 1.0f};
+            t.primary.hoverBackground   = Color{0.28f, 0.55f, 0.92f, 1.0f};
+            t.primary.pressedBackground = Color{0.16f, 0.36f, 0.66f, 1.0f};
+            t.primary.textColor         = Color{1.0f,  1.0f,  1.0f,  1.0f};
+
+            t.secondary.background        = Color{0.20f, 0.20f, 0.20f, 1.0f};
+            t.secondary.hoverBackground   = Color{0.28f, 0.28f, 0.28f, 1.0f};
+            t.secondary.pressedBackground = Color{0.14f, 0.14f, 0.14f, 1.0f};
+
+            t.danger.background        = Color{0.62f, 0.20f, 0.20f, 1.0f};
+            t.danger.hoverBackground   = Color{0.78f, 0.26f, 0.26f, 1.0f};
+            t.danger.pressedBackground = Color{0.46f, 0.14f, 0.14f, 1.0f};
+            t.danger.textColor         = Color{1.0f,  0.95f, 0.95f, 1.0f};
+
+            t.disabled.background = Color{0.15f, 0.15f, 0.15f, 1.0f};
+            t.disabled.textColor  = Color{0.50f, 0.50f, 0.50f, 1.0f};
+
+            return t;
+        }
+    }
+}