Add a Drag Slider to UI7

include/pd/ui7/container/slider.hpp

@@ -0,0 +1,91 @@
+#pragma once
+
+/*
+MIT License
+Copyright (c) 2024 - 2025 René Amthor (tobid7)
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+#include <pd/ui7/container/container.hpp>
+#include <pd/ui7/io.hpp>
+
+namespace PD {
+namespace UI7 {
+/**
+ * Slider Object can take a datatype or a list
+ * and modifys these by moving left or right when dragging
+ */
+template <typename T>
+class PD_UI7_API Slider : public Container {
+ public:
+  /**
+   * Constructor
+   * @param label Label of the Button
+   * @param data Data reference (Supported types can be seen in Slider.cpp)
+   * @param num_elms Number of Array elements (for exaple with use ofvec4)
+   * @param io IO Reference
+   * @param min minimum number using Minimum limit
+   * @param max Maximum number set by max limit by default
+   * @param step To set the modifier for drag movement
+   * @param precision for float and double to set precision
+   */
+  Slider(const std::string& label, T* data, UI7::IO::Ref io,
+         T min = std::numeric_limits<T>::min(),
+         T max = std::numeric_limits<T>::max(), int precision = 1) {
+    // PD::Assert(data != nullptr, "Input Data Address is null!");
+    this->label = label;
+    this->data = data;
+    this->min = min;
+    this->max = max;
+    this->precision = precision;
+    this->width = io->CurrentViewPort.z * 0.3f;
+    this->tdim = io->Font->GetTextBounds(label, io->FontScale);
+  }
+  ~Slider() = default;
+
+  /** Als ob das funktioniert... */
+  PD_SHARED(Slider<T>);
+  /**
+   * Override for the Input Handler
+   * @note This function is usally called by Menu::Update
+   */
+  void HandleInput() override;
+  /**
+   * Override for the Rendering Handler
+   * @note This function is usally called by Menu::Update
+   * */
+  void Draw() override;
+
+  /** Function to Update Size if framepadding changes */
+  void Update() override;
+
+ private:
+  fvec2 tdim;         ///< Text size
+  float width;        ///< Size
+  std::string label;  ///< Label of the Button
+  T* data;
+  T min;
+  T max;
+  int precision = 1;
+  float slw = 0.f;  // silider drag width (calculated in update)
+  float slp = 0.f;  // silider drag pos (calculated in update)
+};
+}  // namespace UI7
+}  // namespace PD