PanelGroupNode.h

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#pragma once
 
#include "UI/Layout/ImageNode.h"
#include "UI/Layout/PanelNode.h"
#include "UI/Layout/RectNode.h"
 
#include <cstddef>
#include <memory>
#include <vector>
 
namespace z8::ui {
class PanelGroupNode;
 
class PanelGroupCloseNode final : public RectNode {
public:
  PanelGroupNode *Group = nullptr;
  ImageNode *IconNode = nullptr;
 
  explicit PanelGroupCloseNode(PanelGroupNode &group);
  EventReply OnMouseDown(MouseMovArgs args) override;
  const char *TypeName() const override { return "PanelGroupClose"; }
 
private:
  void OnVisualStateChanged() override;
};
 
class PanelGroupTabNode final : public RectNode {
public:
  PanelGroupNode *Group = nullptr;
  ImageNode *IconNode = nullptr;
  TextNode *LabelNode = nullptr;
  RectNode *SelectionNode = nullptr;
  size_t PanelIndex = 0;
 
  PanelGroupTabNode(PanelGroupNode &group, size_t panelIndex,
                    const std::string &title, const std::string &iconSource);
  EventReply OnMouseDown(MouseMovArgs args) override;
  void RefreshVisualState();
  bool SetIcon(const std::string &iconSource);
  bool SetIcon(UIIcon icon);
  void SetTitle(const std::string &title);
  const char *TypeName() const override { return "PanelGroupTab"; }
 
private:
  void OnVisualStateChanged() override;
};
 
class PanelGroupNode final : public RectNode {
public:
  size_t ActivePanel = 0;
  bool CloseRequested = false;
  PanelGroupCloseNode *CloseButtonNode = nullptr;
  RectNode *ContentSeparatorNode = nullptr;
  RectNode *DragHandleNode = nullptr;
  RectNode *HeaderNode = nullptr;
  RectNode *TabBarNode = nullptr;
  BaseNode *PagesNode = nullptr;
  std::vector<PanelNode *> Panels;
  std::vector<PanelGroupTabNode *> Tabs;
 
  PanelGroupNode();
 
  bool ActivatePanel(size_t panelIndex);
  BaseNode *AddChild(std::unique_ptr<BaseNode> child) override;
  PanelNode *AddPanel(std::unique_ptr<PanelNode> panel);
  BaseNode *ContentHost() override { return this; }
  bool HasInteractiveGeometry() const;
  std::unique_ptr<PanelNode> RemovePanel(size_t panelIndex);
  bool SetProperty(const std::string &name, const std::string &value) override;
  bool SwapPanels(size_t firstIndex, size_t secondIndex);
  const char *TypeName() const override { return "PanelGroup"; }
 
private:
  void UpdateSelectionVisuals();
};
 
} // namespace z8::ui