Linux Cubed Series 2: Applications/Linux Cubed Series 2 - Applications.iso/math/graphs/graphed-.1/graphed-/usr/local/graphed/include/sgraph/sgraph_interface.h

C/C++ Source or Header | 1995-07-10 | 4.4 KB | 230 lines

/* (C) Universitaet Passau 1986-1994 */
/* Sgraph Source, 1988-1994 by Michael Himsolt */

#ifndef SGRAPH_INTERFACE_H
#define SGRAPH_INTERFACE_H

#include <sgraph/sgraph.h>
#include <sgraph/graphed_structures.h>
#ifndef EXTERN_LINK_MODULE
#include  <graphed/user_event_functions.h>
#endif

extern    void    menu_call_sgraph_proc (); /* Menu, Menu_item, (void*)() */
extern    void    call_sgraph_proc(void (*proc) (), char *user_args);
extern    void    call_sgraphs_proc (Slist (*proc) (), char *user_args);


typedef    enum    {
    SGRAPH_SELECTED_NONE,
    SGRAPH_SELECTED_NOTHING,
    SGRAPH_SELECTED_SNODE,
    SGRAPH_SELECTED_SEDGE,
    SGRAPH_SELECTED_GROUP,

    SGRAPH_SELECTED_SAME
}
    Sgraph_selected;


typedef    union {
    Snode    snode;
    Sedge    sedge;
    Slist    group;
}
    Sgraph_selection;


typedef struct sgraph_proc_info {

    Sgraph_selected  selected;
    Sgraph           sgraph;
    Sgraph_selection selection;
    int              buffer;

    Sgraph_selected  new_selected;
    Sgraph           new_sgraph;
    Sgraph_selection new_selection;
    int              new_buffer;

    int    repaint,
        recompute,
        no_changes,
        no_structure_changes,
        save_selection;

    int    recenter;
}
    *Sgraph_proc_info;

#define    NEW_SEDGE    NEW_EDGE
#define    OLD_SEDGE_REAL_POINT    OLD_EDGE_REAL_POINT
#define    OLD_SEDGE_IMAGINARY_POINT    OLD_EDGE_IMAGINARY_POINT
#define    MOVE_SNODE    MOVE_NODE
#define    SCALE_SNODE_MIDDLE    SCALE_NODE_MIDDLE
#define    SCALE_SNODE_UPPER_LEFT    SCALE_NODE_UPPER_LEFT
#define    SCALE_SNODE_UPPER_RIGHT    SCALE_NODE_UPPER_RIGHT
#define    SCALE_SNODE_LOWER_LEFT    SCALE_NODE_LOWER_LEFT
#define    SCALE_SNODE_LOWER_RIGHT    SCALE_NODE_LOWER_RIGHT

/************** Extended Application Interface **************************/


typedef    struct    {

    Edge_drag_info    what;

    union {
        struct {
            Snode        source;
            Edgeline    el;
        }
            new_edge;
        struct {
            Sedge        edge;
            Edgeline    el;
        }
            real_point;
        struct {
            Sedge        edge;
            Edgeline    el;
        }
            imaginary_point;
    }
        which;

    int    x,y;
}
    Sgraph_drag_edge_info;


typedef    struct    {
    Node_drag_info what;

    Snode    node;

    int    x,y, sx,sy;    /* Platzierung und Groesse    */

    int    correction_x,    /* Korrekturen, da Klickpunkt    */
        correction_y;    /* nicht immer der Knoten-    */
                /* mittelpunkt ist.        */
}
    Sgraph_drag_node_info;



typedef    struct    {
    Slist    group;    /* DIE Gruppe            */
    int    x ,y,    /* Position von group->node    */
        x0,y0;    /* Ursprungsposition        */
    int    correction_x,    /* siehe Drag_node_info    */
        correction_y;
}
    Sgraph_drag_group_info;


typedef    struct    {
    int    x1,y1,    /* Linke obere Ecke        */
        x2,y2;    /* Rechte untere Ecke        */
    int    shift_is_down;
}
    Sgraph_drag_box_info;


typedef    struct    {
    int              x,y;        /* Rechte untere Ecke    */
    Sgraph_selected  what;
    Sgraph_selection which;
}
    Sgraph_click_info;


#define Sgraph_uev_state User_event_functions_state
#define SGRAPH_UEV_START UEV_START
#define SGRAPH_UEV_DRAG UEV_DRAG
#define SGRAPH_UEV_INTERMEDIATE_STOP UEV_INTERMEDIATE_STOP
#define SGRAPH_UEV_FINISH UEV_FINISH
#define SGRAPH_UEV_ERROR UEV_ERROR

#define Sgraph_uev_type User_event_functions_type
#define SGRAPH_UEV_CLICK UEV_CLICK
#define SGRAPH_UEV_DOUBLE_CLICK UEV_DOUBLE_CLICK
#define SGRAPH_UEV_DRAG_NODE UEV_DRAG_NODE
#define SGRAPH_UEV_DRAG_EDGE UEV_DRAG_EDGE
#define SGRAPH_UEV_DRAG_GROUP UEV_DRAG_GROUP
#define SGRAPH_UEV_DRAG_BOX UEV_DRAG_BOX
#define NUMBER_OF_SGRAPH_UEV_FUNCTIONS NUMBER_OF_UEV_FUNCTIONS

typedef    struct    sgraph_event_proc_info {

    Sgraph_uev_state    state;
    Sgraph_uev_type        type;

    union {
        Sgraph_click_info    click;
        Sgraph_drag_node_info    node;
        Sgraph_drag_edge_info    edge;
        Sgraph_drag_group_info    group;
        Sgraph_drag_box_info    box;
    }
        details;

    int    do_default_action;
}
    *Sgraph_event_proc_info;


typedef    struct    sgraph_command_proc_info {

    User_action    action;

    union {
        Sgraph    sgraph;
        Snode    snode;
        Sedge    sedge;
    }
        data;

}
    *Sgraph_command_proc_info;



/****************** Multiple Graphs Interface ****************************/


typedef    enum    {
    SIMPLE_SGRAPH_PROC,
    SGRAPH_EVENT_PROC
}
    Sgraph_proc_type;



typedef    struct    call_sgraph_proc_info {

    int    x_center_before, y_center_before;
    int    n_nodes;

    struct    sgraph_proc_info     sgraph_proc_info;
    struct    sgraph_event_proc_info    sgraph_event_proc_info;

    int    structure_changed, anything_changed;
}
    *Call_sgraph_proc_info;


typedef struct sgraph_selection_info {

    Sgraph_selected        selected;
    Sgraph_selection    selection;
    int            save_selection;

}
    *Sgraph_selection_info;

extern Snode sedge_real_source();
extern Snode sedge_real_target();

#endif