PagedGump.cpp

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/*
 *  Copyright (C) 2004-2005  The Pentagram Team
 *
 *  This program is free software{} you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation{} either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program 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 General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program{} if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
 */

#include "pent_include.h"
#include "PagedGump.h"

#include "GameData.h"
#include "GumpShapeArchive.h"
#include "Shape.h"
#include "ShapeFrame.h"
#include "GUIApp.h"
#include "ButtonWidget.h"

DEFINE_RUNTIME_CLASSTYPE_CODE(PagedGump,ModalGump);

PagedGump::PagedGump(int left, int right, int top, int shape):
        ModalGump(0, 0, 5, 5), leftOff(left), rightOff(right), topOff(top),
        gumpShape(shape), nextButton(0), prevButton(0), buttonsEnabled(true)
{
        current = gumps.end();
}

PagedGump::~PagedGump(void)
{
        gumps.clear();
}

void PagedGump::Close(bool no_del)
{
        GUIApp::get_instance()->popMouseCursor();
        std::vector<Gump*>::iterator iter;
        for (iter=gumps.begin(); iter != gumps.end(); ++iter) {
                (*iter)->Close(no_del); // CHECKME: no_del?
        }

        ModalGump::Close(no_del);
}

static const int pageOverShape = 34;

void PagedGump::InitGump(Gump* newparent, bool take_focus)
{
        ModalGump::InitGump(newparent, take_focus);

        shape = GameData::get_instance()->getGumps()->getShape(gumpShape);
        ShapeFrame* sf = shape->getFrame(0);
        assert(sf);

        dims.w = sf->width;
        dims.h = sf->height;

        FrameID buttonleft(GameData::GUMPS, pageOverShape, 0);
        FrameID buttonright(GameData::GUMPS, pageOverShape, 1);

        nextButton = new ButtonWidget(0, 0, buttonright, buttonright, false,
                                                                  LAYER_ABOVE_NORMAL);
        nextButton->InitGump(this);
        nextButton->setRelativePosition(TOP_RIGHT, rightOff, topOff);

        prevButton = new ButtonWidget(0, 0, buttonleft, buttonleft, false,
                                                                  LAYER_ABOVE_NORMAL);
        prevButton->InitGump(this);
        prevButton->setRelativePosition(TOP_LEFT, leftOff, topOff);
        prevButton->HideGump();

        GUIApp * guiapp = GUIApp::get_instance();
        guiapp->pushMouseCursor();
        guiapp->setMouseCursor(GUIApp::MOUSE_HAND); // default cursor
}

void PagedGump::PaintThis(RenderSurface* surf, sint32 lerp_factor, bool scaled)
{
        Gump::PaintThis(surf, lerp_factor, scaled);
}



bool PagedGump::OnKeyDown(int key, int mod)
{
        if (current != gumps.end())
                if ((*current)->OnKeyDown(key, mod)) return true;

        switch (key)
        {
        case SDLK_ESCAPE:
                Close();
                return true;
        default:
                break;
        }

        return true;
}

void PagedGump::ChildNotify(Gump *child, uint32 message)
{
        if (!buttonsEnabled) return;
        if (gumps.empty()) return;

        ObjId cid = child->getObjId();

        if (message == ButtonWidget::BUTTON_CLICK)
        {
                if (cid == nextButton->getObjId())
                {
                        if (current + 1 != gumps.end())
                        {
                                (*current)->HideGump();
                                ++current;
                                (*current)->UnhideGump();
                                (*current)->MakeFocus();

                                if (current + 1 == gumps.end())
                                        nextButton->HideGump();

                                prevButton->UnhideGump();
                        }
                }
                else if (cid == prevButton->getObjId())
                {
                        if (current != gumps.begin())
                        {
                                (*current)->HideGump();
                                --current;
                                (*current)->UnhideGump();
                                (*current)->MakeFocus();
                                
                                if (current == gumps.begin())
                                        prevButton->HideGump();

                                nextButton->UnhideGump();
                        }
                }
        }
}

void PagedGump::addPage(Gump * g)
{
        assert(g->GetParent() == this);
        g->setRelativePosition(TOP_CENTER, 0, 3 + topOff);
        g->HideGump();
        gumps.push_back(g);

        current = gumps.begin();
        (*current)->UnhideGump();
        if (focus_child != *current)
                (*current)->MakeFocus();
        
        if (current + 1 == gumps.end())
                nextButton->HideGump();
        else
                nextButton->UnhideGump();
}

bool PagedGump::loadData(IDataSource* ids)
{
        CANT_HAPPEN_MSG("Trying to load ModalGump");
        return false;
}

void PagedGump::saveData(ODataSource* ods)
{
        CANT_HAPPEN_MSG("Trying to save ModalGump");
}

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