pgwidgetlist.cpp

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/*
    ParaGUI - crossplatform widgetset
    Copyright (C) 2000,2001,2002  Alexander Pipelka
 
    This library is free software; you can redistribute it and/or
    modify it under the terms of the GNU Library General Public
    License as published by the Free Software Foundation; either
    version 2 of the License, or (at your option) any later version.
 
    This library is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
    Library General Public License for more details.
 
    You should have received a copy of the GNU Library General Public
    License along with this library; if not, write to the Free
    Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 
    Alexander Pipelka
    pipelka@teleweb.at
 
    Last Update:      $Author: mbickel $
    Update Date:      $Date: 2007-04-13 16:16:04 $
    Source File:      $Source: /home/cvspsrv/cvsroot/games/asc/source/libs/paragui/src/widgets/pgwidgetlist.cpp,v $
    CVS/RCS Revision: $Revision: 1.2 $
    Status:           $State: Exp $
*/

#include "pgwidgetlist.h"
#include "pgapplication.h"
#include "pgscrollarea.h"
#include "pglog.h"


PG_WidgetList::PG_WidgetList(PG_Widget* parent, const PG_Rect& r, const std::string& style) : PG_ScrollWidget(parent, r, style) {
        my_scrollarea->SetShiftOnRemove(false, true);

        if(style != "WidgetList") {
                LoadThemeStyle("WidgetList");
        }
        LoadThemeStyle(style);
}

PG_WidgetList::~PG_WidgetList() {}

void PG_WidgetList::AddChild(PG_Widget* w) {
        if(w == NULL) {
                return;
        }

        if (my_objVerticalScrollbar == NULL || my_objHorizontalScrollbar == NULL || my_scrollarea == NULL) {
                PG_Widget::AddChild(w);
                return;
        }

        w->MoveRect(0, w->my_ypos + my_scrollarea->GetAreaHeight());
        my_scrollarea->AddChild(w);
}

PG_Widget* PG_WidgetList::GetWidgetFromPos(Sint32 y) {
        Uint32 dy = 0;
        Uint32 min_dy = 100000000;

        PG_Widget* result = NULL;

        PG_Widget* list = GetChildList()->first();
        for( ; list != NULL; list = list->next()) {
                dy = abs(0- (list->my_ypos - my_ypos));

                if(dy < min_dy) {
                        min_dy = dy;
                        result = list;
                }
        }

        return result;
}

PG_Widget* PG_WidgetList::FindWidget(int index) {

        if((index < 0) || (index >= GetWidgetCount())) {
                return NULL;
        }

        int i = 0;
        PG_Widget* list = my_scrollarea->GetChildList()->first();
        for( ; list != NULL; list = list->next()) {
                if(i == index) {
                        return list;
                }
                i++;
        }

        return NULL;
}

int PG_WidgetList::FindIndex(PG_Widget* w) {
        int index = 0;

        PG_Widget* list = GetChildList()->first();
        for( ; list != NULL; list = list->next()) {
                if(list == w) {
                        return index;
                }
                index++;
        }

        return -1;
}

void PG_WidgetList::ScrollTo(Uint16 ypos) {
        my_scrollarea->ScrollTo(my_scrollarea->GetScrollPosX(), ypos);
        CheckScrollBars();
}

void PG_WidgetList::PageUp() {
        my_scrollarea->ScrollTo(my_scrollarea->GetScrollPosX(), my_scrollarea->GetScrollPosY() - my_height );
        CheckScrollBars();
}

void PG_WidgetList::PageDown() {
        my_scrollarea->ScrollTo(my_scrollarea->GetScrollPosX(), my_scrollarea->GetScrollPosY() + my_height );
        CheckScrollBars();
}

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