Starting work on moving GUI to event system (doesnt compile)

src/GUIStuff/Elements/ColorPickerShaders.cpp

@@ -0,0 +1,55 @@
+#include "ColorPicker.decl.hpp"
+#include <include/effects/SkRuntimeEffect.h>
+
+namespace GUIStuff { namespace ColorPickerShaders {
+
+sk_sp<SkShader> get_hue_shader() {
+    static sk_sp<SkShader> hueBarShader;
+    if(!hueBarShader) {
+        auto [effect, err] = SkRuntimeEffect::MakeForShader(SkString(hueBarSkSl));
+        if(!err.isEmpty()) {
+           std::cout << "[ColorPicker::get_hue_shader] Hue shader construction error\n";
+           std::cout << err.c_str() << std::endl;
+        }
+        else
+           hueBarShader = effect->makeShader(nullptr, {nullptr, 0});
+    }
+    return hueBarShader;
+}
+
+sk_sp<SkShader> get_sv_selection_shader(float hue) {
+    static sk_sp<SkRuntimeEffect> svSelectionAreaEffect;
+    if(!svSelectionAreaEffect) {
+        auto [effect, err] = SkRuntimeEffect::MakeForShader(SkString(svSelectionAreaSkSl));
+        if(!err.isEmpty()) {
+            std::cout << "[ColorPicker::get_sv_selection_shader] SV Selection shader construction error\n";
+            std::cout << err.c_str() << std::endl;
+            return nullptr;
+        }
+        else
+            svSelectionAreaEffect = effect;
+    }
+    SkRuntimeShaderBuilder builder(svSelectionAreaEffect);
+    builder.uniform("hue") = hue;
+    return builder.makeShader();
+}
+
+sk_sp<SkShader> get_alpha_bar_shader(const Vector3f& mainColor, float horizontalResolution) {
+    static sk_sp<SkRuntimeEffect> alphaBarEffect;
+    if(!alphaBarEffect) {
+        auto [effect, err] = SkRuntimeEffect::MakeForShader(SkString(alphaBarSksl));
+        if(!err.isEmpty()) {
+            std::cout << "[ColorPicker::get_alpha_bar_shader] Alpha bar shader construction error\n";
+            std::cout << err.c_str() << std::endl;
+            return nullptr;
+        }
+        else
+            alphaBarEffect = effect;
+    }
+    SkRuntimeShaderBuilder builder(alphaBarEffect);
+    builder.uniform("mainColor") = SkV3{mainColor.x(), mainColor.y(), mainColor.z()};
+    builder.uniform("horizontalResolution") = horizontalResolution;
+    return builder.makeShader();
+}
+
+}}