mirror of https://github.com/CGAL/cgal
112 lines
3.2 KiB
C++
112 lines
3.2 KiB
C++
#ifndef SCENE_INTERFACE_H
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#define SCENE_INTERFACE_H
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#include <QString>
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#include <QColor>
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#include <QList>
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#include <algorithm>
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#include <cmath>
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class Scene_item;
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// OpenGL rendering mode
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enum RenderingMode { Points = 0,
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PointsPlusNormals,
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Splatting,
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Wireframe,
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Flat,
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FlatPlusEdges,
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Gouraud,
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LastRenderingMode = Gouraud,
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NumberOfRenderingMode = LastRenderingMode+1 };
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// Interface of Scene class exported to plugins
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class Scene_interface {
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public:
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struct Bbox {
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double xmin, ymin, zmin;
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double xmax, ymax, zmax;
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Bbox(const double _xmin,const double _ymin,const double _zmin,
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const double _xmax,const double _ymax,const double _zmax)
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: xmin(_xmin), ymin(_ymin), zmin(_zmin),
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xmax(_xmax), ymax(_ymax), zmax(_zmax)
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{
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}
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Bbox()
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: xmin(0.0), ymin(0.0), zmin(0.0),
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xmax(1.0), ymax(1.0), zmax(1.0)
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{
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}
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Bbox operator+(const Bbox& b) const {
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return Bbox((std::min)(xmin, b.xmin),
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(std::min)(ymin, b.ymin),
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(std::min)(zmin, b.zmin),
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(std::max)(xmax, b.xmax),
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(std::max)(ymax, b.ymax),
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(std::max)(zmax, b.zmax));
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}
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bool operator==(const Bbox&b) const{
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return
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xmin==b.xmin && xmax==b.xmax &&
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ymin==b.ymin && ymax==b.ymax &&
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zmin==b.zmin && zmax==b.zmax;
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}
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bool operator!=(const Bbox& b) const{
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return !(*this == b);
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}
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double width() const { return xmax-xmin; }
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double height() const { return ymax-ymin; }
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double depth() const { return zmax-zmin; }
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double diagonal_length() const
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{
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return std::sqrt(width()*width() + height()*height() + depth()*depth());
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}
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}; // struct BBox (ad hoc class, does not depend on CGAL kernels
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typedef int Item_id;
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virtual ~Scene_interface() {}
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virtual Item_id addItem(Scene_item* item) = 0;
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virtual Scene_item* replaceItem(Item_id, Scene_item*, bool emit_item_about_to_be_destroyed = false) = 0;
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virtual Item_id erase(Item_id) = 0;
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// Returns the index of the item just before the one that is erased,
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// or just after. Returns -1 if the list is empty.
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virtual Item_id duplicate(Item_id) = 0;
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// Returns the index of the new item
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// If no new item has been created (because the item type is note
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// clonable), returns -1.
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// Accessors (getters)
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virtual int numberOfEntries() const = 0;
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virtual Scene_item* item(Item_id) const = 0;
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virtual Item_id item_id(Scene_item*) const = 0;
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virtual Item_id mainSelectionIndex() const = 0;
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virtual QList<Item_id> selectionIndices() const = 0;
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virtual Item_id selectionAindex() const = 0;
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virtual Item_id selectionBindex() const = 0;
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// Get scene bounding box
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virtual Bbox bbox() const = 0;
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virtual double len_diagonal() const = 0;
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public:
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// Notify the scene that an item was modified
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virtual void itemChanged(Item_id i) = 0;
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virtual void itemChanged(Scene_item*) = 0;
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// Select an item
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virtual void setSelectedItem(Item_id) = 0;
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}; // end interface Scene_interface
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#endif // SCENE_INTERFACE_H
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