tip/ui/qt/list.cpp

/*
 * 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 "list.h"
#include "container.h"

#include <QTreeView>
#include <QTreeWidgetItem>
#include <QListView>

extern "C" void* ui_strmodel_getvalue(void *elm, int column) {
    return column == 0 ? elm : NULL;
}

static void* getvalue_wrapper(UiList *list, void *elm, int row, int col, void *userdata, UiBool *freeResult) {
    ui_getvaluefunc getvalue = (ui_getvaluefunc)userdata;
    return getvalue(elm, col);
}

static void* null_getvalue(UiList *list, void *elm, int row, int col, void *userdata, UiBool *freeResult) {
    return NULL;
}

UIWIDGET ui_listview_create(UiObject* obj, UiListArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    
    QListView *view = new QListView();
    ui_getvaluefunc2 getvalue = nullptr;
    void *getvaluedata = nullptr;
    if(args->getvalue2) {
        getvalue = args->getvalue2;
        getvaluedata = args->getvalue2data;
    } else if(args->getvalue) {
        getvalue = getvalue_wrapper;
        getvaluedata = (void*)args->getvalue;
    } else {
        getvalue = getvalue_wrapper;
        getvaluedata = (void*)ui_strmodel_getvalue;
    }
    
    UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args->list, args->varname, UI_VAR_LIST);
    
    ListModel *model = new ListModel(obj, view, var, getvalue, getvaluedata);
    view->setModel(model);
    
    if(var) {
        UiList *list = (UiList*)var->value;
        list->update = ui_listmodel_update;
        list->getselection = ui_listmodel_getselection;
        list->setselection = ui_listmodel_setselection;
        list->obj = model;
    }
    
    model->setActivationCallback(args->onactivate, args->onactivatedata);
    model->setSelectionCallback(args->onselection, args->onselectiondata);
    
    QItemSelectionModel *s = view->selectionModel();
    QObject::connect(
            s,
            SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)),
            model,
            SLOT(selectionChanged(const QItemSelection &, const QItemSelection &)));
    
    UiLayout layout = UI_ARGS2LAYOUT(args);
    ctn->add(view, layout);
    
    return view;
}

UIWIDGET ui_table_create(UiObject* obj, UiListArgs *args) {
    UiContainerPrivate *ctn = ui_obj_container(obj);
    
    QTreeView *view = new QTreeView();
    view->setItemsExpandable(false);
    view->setRootIsDecorated(false);
    if(args->multiselection) {
        view->setSelectionMode(QAbstractItemView::ExtendedSelection);
    }
    
    UiVar* var = uic_widget_var(obj->ctx, obj->ctx, args->list, args->varname, UI_VAR_LIST);
    
    ui_getvaluefunc2 getvalue = args->getvalue2;
    void *getvaluedata = args->getvalue2data;
    if(!getvalue) {
        if(args->getvalue) {
            getvalue = getvalue_wrapper;
            getvaluedata = (void*)args->getvalue;
        } else {
            getvalue = null_getvalue;
        }
    }
    TableModel *model = new TableModel(obj, view, var, args->model, getvalue, getvaluedata);
    view->setModel(model);
    
    if(var) {
        UiList *list = (UiList*)var->value;
        list->update = ui_listmodel_update;
        list->getselection = ui_listmodel_getselection;
        list->setselection = ui_listmodel_setselection;
        list->obj = model;
    }
    
    model->setActivationCallback(args->onactivate, args->onactivatedata);
    model->setSelectionCallback(args->onselection, args->onselectiondata);
    
    QItemSelectionModel *s = view->selectionModel();
    QObject::connect(
            s,
            SIGNAL(selectionChanged(const QItemSelection &, const QItemSelection &)),
            model,
            SLOT(selectionChanged(const QItemSelection &, const QItemSelection &)));
    
    
    UiLayout layout = UI_ARGS2LAYOUT(args);
    ctn->add(view, layout);
    
    return view;
}