bwScrollView.h

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#pragma once
 
#include <cmath>
 
#include "bwContainerWidget.h"
 
namespace bWidgets {
 
namespace bwScreenGraph {
class WidgetNode;
}
class bwScrollBar;
 
class bwScrollView : public bwContainerWidget {
  friend class bwScrollViewHandler;
 
 public:
  bwScrollView(bwScreenGraph::ContainerNode& node,
               unsigned int width = 0,
               unsigned int height = 0);
 
  auto getTypeIdentifier() const -> std::string_view override;
 
  void draw(bwStyle& style) override;
 
  auto createHandler() -> std::unique_ptr<bwScreenGraph::EventHandler> override;
 
  auto getScrollOffsetY() const -> int;
  auto getContentBounds(float interface_scale) const -> bwRectanglePixel;
 
 private:
  auto getVerticalScrollBar() const -> bwScrollBar&;
  auto getVerticalScrollbarRect(const bwStyle& style) const -> bwRectanglePixel;
  void drawScrollBars(bwStyle& style);
  auto isScrollable() const -> bool;
  void validizeScrollValues();
 
  static auto getScrollbarWidth(float interface_scale) -> int;
 
  constexpr static int SCROLL_BAR_SIZE = 17;
 
  std::unique_ptr<bwScreenGraph::WidgetNode> scrollbar_node;
 
  int vert_scroll{0};
};
 
}  // namespace bWidgets