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/*
* The Mana World
* Copyright 2004 The Mana World Development Team
*
* This file is part of The Mana World.
*
* The Mana World 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
* any later version.
*
* The Mana World 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 The Mana World; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include "itemcontainer.h"
#include <guichan/mouseinput.hpp>
#include <guichan/selectionlistener.hpp>
#include "../graphics.h"
#include "../inventory.h"
#include "../item.h"
#include "../itemshortcut.h"
#include "../log.h"
#include "../resources/image.h"
#include "../resources/iteminfo.h"
#include "../resources/resourcemanager.h"
#include "../utils/tostring.h"
const int ItemContainer::gridWidth = 36; // item icon width + 4
const int ItemContainer::gridHeight = 42; // item icon height + 10
static const int NO_ITEM = -1;
ItemContainer::ItemContainer(Inventory *inventory):
mInventory(inventory),
mSelectedItemIndex(NO_ITEM),
mLastSelectedItemId(NO_ITEM)
{
ResourceManager *resman = ResourceManager::getInstance();
mSelImg = resman->getImage("graphics/gui/selection.png");
if (!mSelImg) logger->error("Unable to load selection.png");
mMaxItems = mInventory->getLastUsedSlot() - 1; // Count from 0, usage from 2
addMouseListener(this);
addWidgetListener(this);
}
ItemContainer::~ItemContainer()
{
mSelImg->decRef();
}
void ItemContainer::logic()
{
gcn::Widget::logic();
int i = mInventory->getLastUsedSlot() - 1; // Count from 0, usage from 2
if (i != mMaxItems)
{
mMaxItems = i;
recalculateHeight();
}
}
void ItemContainer::draw(gcn::Graphics *graphics)
{
int columns = getWidth() / gridWidth;
// Have at least 1 column
if (columns < 1)
{
columns = 1;
}
/*
* eAthena seems to start inventory from the 3rd slot. Still a mystery to
* us why, make sure not to copy this oddity to our own server.
*/
for (int i = 2; i < INVENTORY_SIZE; i++)
{
Item *item = mInventory->getItem(i);
if (!item || item->getQuantity() <= 0)
continue;
int itemX = ((i - 2) % columns) * gridWidth;
int itemY = ((i - 2) / columns) * gridHeight;
// Draw selection image below selected item
if (mSelectedItemIndex == i)
{
static_cast<Graphics*>(graphics)->drawImage(
mSelImg, itemX, itemY);
}
// Draw item icon
Image* image = item->getImage();
if (image)
{
static_cast<Graphics*>(graphics)->drawImage(
image, itemX, itemY);
}
// Draw item caption
graphics->drawText(
(item->isEquipped() ? "Eq." : toString(item->getQuantity())),
itemX + gridWidth / 2,
itemY + gridHeight - 11,
gcn::Graphics::CENTER);
}
}
void ItemContainer::widgetResized(const gcn::Event &event)
{
recalculateHeight();
}
void ItemContainer::recalculateHeight()
{
int cols = getWidth() / gridWidth;
if (cols < 1)
cols = 1;
const int rows = (mMaxItems / cols) + (mMaxItems % cols > 0 ? 1 : 0);
const int height = rows * gridHeight + 8;
if (height != getHeight())
setHeight(height);
}
Item *ItemContainer::getSelectedItem()
{
refindSelectedItem(); // Make sure that we're still current
if (mSelectedItemIndex == NO_ITEM)
return NULL;
return mInventory->getItem(mSelectedItemIndex);
}
void ItemContainer::selectNone()
{
setSelectedItemIndex(NO_ITEM);
}
void ItemContainer::refindSelectedItem()
{
if (mSelectedItemIndex != NO_ITEM) {
if (mInventory->getItem(mSelectedItemIndex) &&
mInventory->getItem(mSelectedItemIndex)->getId() == mLastSelectedItemId)
return; // we're already fine
// Otherwise ensure the invariant: we must point to an item of the specified last ID,
// or nowhere at all.
for (int i = 0; i <= mMaxItems + 1; i++)
if (mInventory->getItem(i) &&
mInventory->getItem(i)->getId() == mLastSelectedItemId) {
mSelectedItemIndex = i;
return;
}
}
mLastSelectedItemId = mSelectedItemIndex = NO_ITEM;
}
void ItemContainer::setSelectedItemIndex(int index)
{
int newSelectedItemIndex;
// mMaxItems is broken because of eAthena's odd inventory layout and the client's refusal
// to handle it properly, so we work around the issue right here.
if (index < 0 || index > mMaxItems + 1 || mInventory->getItem(index) == NULL)
newSelectedItemIndex = NO_ITEM;
else
newSelectedItemIndex = index;
if (mSelectedItemIndex != newSelectedItemIndex)
{
mSelectedItemIndex = newSelectedItemIndex;
if (mSelectedItemIndex == NO_ITEM)
mLastSelectedItemId = NO_ITEM;
else
mLastSelectedItemId = mInventory->getItem(index)->getId();
distributeValueChangedEvent();
}
}
void ItemContainer::distributeValueChangedEvent()
{
gcn::SelectionEvent event(this);
std::list<gcn::SelectionListener*>::iterator i_end = mListeners.end();
std::list<gcn::SelectionListener*>::iterator i;
for (i = mListeners.begin(); i != i_end; ++i)
{
(*i)->valueChanged(event);
}
}
void ItemContainer::mousePressed(gcn::MouseEvent &event)
{
int button = event.getButton();
if (button == gcn::MouseEvent::LEFT || button == gcn::MouseEvent::RIGHT)
{
int columns = getWidth() / gridWidth;
int mx = event.getX();
int my = event.getY();
int index = mx / gridWidth + ((my / gridHeight) * columns) + 2;
itemShortcut->setItemSelected(-1);
setSelectedItemIndex(index);
Item *item = mInventory->getItem(index);
if (item)
itemShortcut->setItemSelected(item->getId());
}
}
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