ui/common/context.h

/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2017 Olaf Wintermann. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright
 *      notice, this list of conditions and the following disclaimer.
 *
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */

#ifndef UIC_CONTEXT_H
#define	UIC_CONTEXT_H

#include "../ui/toolkit.h"
#include "../../ucx/map.h"
#include "../../ucx/mempool.h"
#include "../../ucx/list.h"

#ifdef	__cplusplus
extern "C" {
#endif

typedef struct UiVar         UiVar;
typedef struct UiListPtr     UiListPtr;
typedef struct UiListVar     UiListVar;
typedef struct UiGroupWidget UiGroupWidget;

typedef enum UiVarType UiVarType;

enum UiVarType {
    UI_VAR_SPECIAL = 0,
    UI_VAR_INTEGER,
    UI_VAR_DOUBLE,
    UI_VAR_STRING,
    UI_VAR_TEXT,
    UI_VAR_LIST,
    UI_VAR_RANGE
};

struct UiContext {
    UiContext     *parent;
    UiObject      *obj;
    UcxMempool    *mempool;
    UcxMap        *bound; // key: char*  value: UiVar*
    UcxMap        *vars; // key: char*  value: UiVar*
    void          *document;
    UcxList       *groups; // int list
    UcxList       *group_widgets; // UiGroupWidget* list
    
    void (*set_document)(UiContext *ctx, void *document);
    void (*detach_document)(UiContext *ctx);
    
    char          *title;
    
#ifdef UI_GTK
    GtkAccelGroup *accel_group;
#endif
    
    ui_callback   close_callback;
    void          *close_data;
};

struct UiVar {
    void      *value;
    void      *orig_val;
    UiVarType type;
    UiVar     *from;
};

struct UiGroupWidget {
    UIWIDGET widget;
    int      *groups;
    int      numgroups;
};


UiContext* uic_context(UiObject *toplevel, UcxMempool *mp);
UiContext* uic_root_context(UiContext *ctx);
void uic_context_set_document(UiContext *ctx, void *document);
void uic_context_detach_document(UiContext *ctx);

//UiVar* uic_get_var(UiContext *ctx, char *name);
UiVar* uic_create_var(UiContext *ctx, char *name, UiVarType type);
void* uic_create_value(UiContext *ctx, UiVarType type);

void uic_copy_binding(UiVar *from, UiVar *to, UiBool copytodoc);
void uic_save_var(UiVar *var);
void uic_unbind_var(UiVar *var);

void uic_reg_var(UiContext *ctx, char *name, UiVarType type, void *value);

void uic_remove_bound_var(UiContext *ctx, UiVar *var);

void uic_check_group_widgets(UiContext *ctx);
void uic_add_group_widget(UiContext *ctx, void *widget, UcxList *groups);


#ifdef	__cplusplus
}
#endif

#endif	/* UIC_CONTEXT_H */