transparentoverlayviewinfo.hh

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/*
 * Scroom - Generic viewer for 2D data
 * Copyright (C) 2009-2026 Kees-Jan Dijkzeul
 *
 * SPDX-License-Identifier: LGPL-2.1
 */
 
#pragma once
 
#include <list>
#include <map>
#include <memory>
#include <vector>
 
#include <gtk/gtk.h>
 
#include <cairo.h>
 
#include <scroom/presentationinterface.hh>
#include <scroom/progressinterfacehelpers.hh>
#include <scroom/utilities.hh>
#include <scroom/viewinterface.hh>
 
#include "sizedeterminer.hh"
 
class TransparentOverlayViewInfo;
 
class ChildView
  : public ViewInterface
  , virtual public Scroom::Utils::Base
{
public:
  using Ptr = std::shared_ptr<ChildView>;
 
private:
  std::shared_ptr<TransparentOverlayViewInfo> parent;
  ProgressInterface::Ptr progressInterface;
 
private:
  explicit ChildView(std::shared_ptr<TransparentOverlayViewInfo> parent);
 
public:
  static Ptr create(std::shared_ptr<TransparentOverlayViewInfo> const& parent);
 
  // ViewInterface ///////////////////////////////////////////////////////
  void invalidate() override;
  ProgressInterface::Ptr getProgressInterface() override;
  void addSideWidget(std::string title, GtkWidget* w) override;
  void removeSideWidget(GtkWidget* w) override;
  void addToToolbar(GtkToolItem* ti) override;
  void removeFromToolbar(GtkToolItem* ti) override;
  void registerSelectionListener(SelectionListener::Ptr listener) override;
  void registerPostRenderer(PostRenderer::Ptr renderer) override;
  void setStatusMessage(const std::string& message) override;
  PresentationInterface::Ptr getCurrentPresentation() override;
  void addToolButton(GtkToggleButton* name, ToolStateListener::Ptr callback) override;
};
 
class TransparentOverlayViewInfo : virtual public Scroom::Utils::Base
{
public:
  using Ptr = std::shared_ptr<TransparentOverlayViewInfo>;
 
private:
  using ChildMap = std::map<PresentationInterface::Ptr, ChildView::Ptr>;
 
private:
  ViewInterface::Ptr parentView;
  ChildMap childViews;
  Scroom::Utils::ProgressInterfaceMultiplexer::Ptr progressInterfaceMultiplexer;
  std::vector<GtkWidget*> buttons;
  std::vector<PresentationInterface::Ptr> children;
  SizeDeterminer::Ptr sizeDeterminer;
 
private:
  TransparentOverlayViewInfo(const ViewInterface::WeakPtr& vi, SizeDeterminer::Ptr sizeDeterminer);
  void createToggleToolButton(PresentationInterface::Ptr const& p);
 
public:
  static Ptr create(const ViewInterface::WeakPtr& vi, SizeDeterminer::Ptr const& sizeDeterminer);
  void addChildren(const std::list<PresentationInterface::Ptr>& children);
  void addChild(const PresentationInterface::Ptr& child);
  PresentationInterface::Ptr getChild(const ChildView::Ptr& cv);
 
  void close();
 
  void redraw(cairo_t* cr, Scroom::Utils::Rectangle<double> const& presentationArea, int zoom);
 
  void invalidate() { parentView->invalidate(); }
  ProgressInterface::Ptr getProgressInterface() { return progressInterfaceMultiplexer->createProgressInterface(); }
 
  // Helpers
  void toggled(GtkToggleButton* button);
};