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/*
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
 *
 * Copyright 2014 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.
 */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdarg.h>

#include "toolbar.h"
#include "button.h"
#include "stock.h"
#include "list.h"

#include <cx/hash_map.h>
#include <cx/linked_list.h>
#include <cx/array_list.h>

#include "../common/context.h"

static CxMap *toolbar_items;
static CxList *defaults;

void ui_toolbar_init() {
    toolbar_items = cxHashMapCreate(cxDefaultAllocator, CX_STORE_POINTERS, 16);
    defaults = cxLinkedListCreateSimple(CX_STORE_POINTERS);
}

void ui_toolitem(char *name, char *label, ui_callback f, void *userdata) {
    UiToolItem *item = malloc(sizeof(UiToolItem));
    item->item.add_to = (ui_toolbar_add_f)add_toolitem_widget;
    item->label = label;
    item->image = NULL;
    item->callback = f;
    item->userdata = userdata;
    item->groups = NULL;
    item->isimportant = FALSE;
    
    cxMapPut(toolbar_items, name, item);
}

void ui_toolitem_st(char *name, char *stockid, ui_callback f, void *userdata) {
    ui_toolitem_stgr(name, stockid, f, userdata, -1);
}

void ui_toolitem_stgr(char *name, char *stockid, ui_callback f, void *userdata, ...) {
    UiStToolItem *item = malloc(sizeof(UiStToolItem));
    item->item.add_to = (ui_toolbar_add_f)add_toolitem_st_widget;
    item->stockid = stockid;
    item->callback = f;
    item->userdata = userdata;
    item->groups = NULL;
    item->isimportant = FALSE;
    
    // add groups
    va_list ap;
    va_start(ap, userdata);
    int group;
    while((group = va_arg(ap, int)) != -1) {
        if(!item->groups) {
            item->groups = cxArrayListCreateSimple(sizeof(int), 16);
        }
        cxListAdd(item->groups, &group);
    }
    va_end(ap);
    
    cxMapPut(toolbar_items, name, item);
}

void ui_toolitem_img(char *name, char *label, char *img, ui_callback f, void *udata) {
    // TODO
    
    UiToolItem *item = malloc(sizeof(UiToolItem));
    item->item.add_to = (ui_toolbar_add_f)add_toolitem_widget;
    item->label = label;
    item->image = img;
    item->callback = f;
    item->userdata = udata;
    item->groups = NULL;
    item->isimportant = FALSE;
    
    cxMapPut(toolbar_items, name, item);
}


void ui_toolitem_toggle_stgr(char *name, char *stockid, ui_callback f, void *udata, ...) {
    // TODO
    
    UiStToolItem *item = malloc(sizeof(UiStToolItem));
    item->item.add_to = (ui_toolbar_add_f)add_toolitem_st_toggle_widget;
    item->stockid = stockid;
    item->callback = f;
    item->userdata = udata;
    item->groups = NULL;
    item->isimportant = FALSE;
    
    // add groups
    va_list ap;
    va_start(ap, udata);
    int group;
    while((group = va_arg(ap, int)) != -1) {
        if(!item->groups) {
            item->groups = cxArrayListCreateSimple(sizeof(int), 16);
        }
        cxListAdd(item->groups, &group);
    }
    va_end(ap);
    
    cxMapPut(toolbar_items, name, item);
}

void ui_toolitem_toggle_imggr(char *name, char *label, char *img, ui_callback f, void *udata, ...) {
    // TODO
    
    UiToolItem *item = malloc(sizeof(UiToolItem));
    item->item.add_to = (ui_toolbar_add_f)add_toolitem_toggle_widget;
    item->label = label;
    item->image = img;
    item->callback = f;
    item->userdata = udata;
    item->groups = NULL;
    item->isimportant = FALSE;
    
    // add groups
    va_list ap;
    va_start(ap, udata);
    int group;
    while((group = va_arg(ap, int)) != -1) {
        if(!item->groups) {
            item->groups = cxArrayListCreateSimple(sizeof(int), 16);
        }
        cxListAdd(item->groups, &group);
    }
    va_end(ap);
    
    cxMapPut(toolbar_items, name, item);
}

void ui_toolbar_combobox(
        char *name,
        UiList *list,
        ui_getvaluefunc getvalue,
        ui_callback f,
        void *udata)
{
    UiToolbarComboBox *cb = malloc(sizeof(UiToolbarComboBox));
    cb->item.add_to = (ui_toolbar_add_f)add_toolbar_combobox;  
    cb->list = list;
    cb->getvalue = getvalue;
    cb->callback = f;
    cb->userdata = udata;
    
    cxMapPut(toolbar_items, name, cb);
}

void ui_toolbar_combobox_str(
        char *name,
        UiList *list,
        ui_callback f,
        void *udata)
{
    ui_toolbar_combobox(name, list, ui_strmodel_getvalue, f, udata);
}

void ui_toolbar_combobox_nv(
        char *name,
        char *listname,
        ui_getvaluefunc getvalue,
        ui_callback f,
        void *udata)
{
    UiToolbarComboBoxNV *cb = malloc(sizeof(UiToolbarComboBoxNV));
    cb->item.add_to = (ui_toolbar_add_f)add_toolbar_combobox_nv;  
    cb->listname = listname;
    cb->getvalue = getvalue;
    cb->callback = f;
    cb->userdata = udata;
    
    cxMapPut(toolbar_items, name, cb);
}


void ui_toolbar_add_default(char *name) {
    char *s = strdup(name);
    cxListAdd(defaults, s);
}

Widget ui_create_toolbar(UiObject *obj, Widget parent) {
    if(!defaults) {
        return NULL;
    }
    
    Arg args[8];
    XtSetArg(args[0], XmNshadowType, XmSHADOW_ETCHED_OUT);
    XtSetArg(args[1], XmNshadowThickness, 1);
    XtSetArg(args[2], XmNtopAttachment, XmATTACH_FORM);
    XtSetArg(args[3], XmNleftAttachment, XmATTACH_FORM);
    XtSetArg(args[4], XmNrightAttachment, XmATTACH_FORM);
    Widget frame = XmCreateFrame(parent, "toolbar_frame", args, 5);
    
    XtSetArg(args[0], XmNorientation, XmHORIZONTAL);
    XtSetArg(args[1], XmNpacking, XmPACK_TIGHT);
    XtSetArg(args[2], XmNspacing, 1);
    Widget toolbar = XmCreateRowColumn (frame, "toolbar", args, 3);
    
    CxIterator i = cxListIterator(defaults);
    cx_foreach(char *, def, i) {
        UiToolItemI *item = cxMapGet(toolbar_items, def);
        if(item) {
            item->add_to(toolbar, item, obj);
        } else if(!strcmp(def, "@separator")) {
            // TODO
        } else {
            fprintf(stderr, "UI Error: Unknown toolbar item: %s\n", def);
        }
    }
    
    XtManageChild(toolbar);
    XtManageChild(frame);
    
    return frame;
}

void add_toolitem_widget(Widget parent, UiToolItem *item, UiObject *obj) {
    Arg args[4];
    
    XmString label = XmStringCreateLocalized(item->label);
    XtSetArg(args[0], XmNlabelString, label);
    XtSetArg(args[1], XmNshadowThickness, 1);
    XtSetArg(args[2], XmNtraversalOn, FALSE);
    Widget button = XmCreatePushButton(parent, "toolbar_button", args, 3);
    
    XmStringFree(label);
    
    if(item->callback) {
        UiEventData *event = cxMalloc(
                obj->ctx->allocator,
                sizeof(UiEventData));
        event->obj = obj;
        event->userdata = item->userdata;
        event->callback = item->callback;
        XtAddCallback(
                button,
                XmNactivateCallback,
                (XtCallbackProc)ui_push_button_callback,
                event);
    }
    
    XtManageChild(button);
    
    if(item->groups) {
        uic_add_group_widget(obj->ctx, button, (ui_enablefunc)XtSetSensitive, item->groups);
    }
}

void add_toolitem_st_widget(Widget parent, UiStToolItem *item, UiObject *obj) {
    Arg args[8];
    
    UiStockItem *stock_item = ui_get_stock_item(item->stockid);
     
    XmString label = XmStringCreateLocalized(stock_item->label);
    XtSetArg(args[0], XmNlabelString, label);
    XtSetArg(args[1], XmNshadowThickness, 1);
    XtSetArg(args[2], XmNtraversalOn, FALSE);
    Widget button = XmCreatePushButton(parent, "toolbar_button", args, 3);
 
    XmStringFree(label);
    
    if(item->callback) {
        UiEventData *event = cxMalloc(
                obj->ctx->allocator,
                sizeof(UiEventData));
        event->obj = obj;
        event->userdata = item->userdata;
        event->callback = item->callback;
        XtAddCallback(
                button,
                XmNactivateCallback,
                (XtCallbackProc)ui_push_button_callback,
                event);
    }
    
    XtManageChild(button);
    
    if(item->groups) {
        uic_add_group_widget(obj->ctx, button, (ui_enablefunc)XtSetSensitive, item->groups);
    }
}

void add_toolitem_toggle_widget(Widget parent, UiToolItem *item, UiObject *obj) {
    Arg args[8];
    
    XmString label = XmStringCreateLocalized(item->label);
    XtSetArg(args[0], XmNlabelString, label);
    XtSetArg(args[1], XmNshadowThickness, 1);
    XtSetArg(args[2], XmNtraversalOn, FALSE);
    XtSetArg(args[3], XmNindicatorOn, XmINDICATOR_NONE);
    Widget button = XmCreateToggleButton(parent, "toolbar_toggle_button", args, 4);
    
    XmStringFree(label);
    
    if(item->callback) {
        UiEventData *event = cxMalloc(
                obj->ctx->allocator,
                sizeof(UiEventData));
        event->obj = obj;
        event->userdata = item->userdata;
        event->callback = item->callback;
        XtAddCallback(
                button,
                XmNvalueChangedCallback,
                (XtCallbackProc)ui_toggle_button_callback,
                event);
    }
    
    XtManageChild(button);
    
    if(item->groups) {
        uic_add_group_widget(obj->ctx, button, (ui_enablefunc)XtSetSensitive, item->groups);
    }
}

void add_toolitem_st_toggle_widget(Widget parent, UiStToolItem *item, UiObject *obj) {
    
}

void add_toolbar_combobox(Widget tb, UiToolbarComboBox *item, UiObject *obj) {
    UiListView *listview = cxMalloc(
                obj->ctx->allocator,
                sizeof(UiListView));
    
    UiVar *var = cxMalloc(obj->ctx->allocator, sizeof(UiVar));
    var->value = item->list;
    var->type = UI_VAR_SPECIAL;
    
    Arg args[8];
    XtSetArg(args[0], XmNshadowThickness, 1);
    XtSetArg(args[1], XmNindicatorOn, XmINDICATOR_NONE);
    XtSetArg(args[2], XmNtraversalOn, FALSE);
    XtSetArg(args[3], XmNwidth, 120);
    Widget combobox = XmCreateDropDownList(tb, "toolbar_combobox", args, 4);
    XtManageChild(combobox);
    listview->widget = combobox;
    listview->list = var;
    listview->getvalue = item->getvalue;
    
    ui_listview_update(NULL, listview);
    
    if(item->callback) {
        // TODO:
        
    }
}

void add_toolbar_combobox_nv(Widget tb, UiToolbarComboBoxNV *item, UiObject *obj) {
    
}