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authorAndrei Karas <akaras@inbox.ru>2011-01-02 01:48:38 +0200
committerAndrei Karas <akaras@inbox.ru>2011-01-02 02:41:24 +0200
commit3eeae12c498d1a4dbe969462d2ba841f77ee3ccb (patch)
treeff8eab35e732bc0749fc11677c8873a7b3a58704 /src/gui/widgets/itemcontainer.h
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Initial commit.
This code based on mana client http://www.gitorious.org/mana/mana and my private repository.
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+/*
+ * The Mana Client
+ * Copyright (C) 2004-2009 The Mana World Development Team
+ * Copyright (C) 2009-2010 The Mana Developers
+ *
+ * This file is part of The Mana Client.
+ *
+ * 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
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef ITEMCONTAINER_H
+#define ITEMCONTAINER_H
+
+#include <guichan/keylistener.hpp>
+#include <guichan/mouselistener.hpp>
+#include <guichan/widget.hpp>
+#include <guichan/widgetlistener.hpp>
+
+#include <list>
+
+#ifdef __GNUC__
+#define _UNUSED_ __attribute__ ((unused))
+#else
+#define _UNUSED_
+#endif
+
+class Image;
+class Inventory;
+class Item;
+class ItemPopup;
+
+namespace gcn
+{
+ class SelectionListener;
+}
+
+/**
+ * An item container. Used to show items in inventory and trade dialog.
+ *
+ * \ingroup GUI
+ */
+class ItemContainer : public gcn::Widget,
+ public gcn::KeyListener,
+ public gcn::MouseListener,
+ public gcn::WidgetListener
+{
+ public:
+ /**
+ * Constructor. Initializes the graphic.
+ *
+ * @param inventory
+ * @param gridColumns Amount of columns in grid.
+ * @param gridRows Amount of rows in grid.
+ * @param offset Index offset
+ */
+ ItemContainer(Inventory *inventory, bool forceQuantity = false);
+
+ /**
+ * Destructor.
+ */
+ virtual ~ItemContainer();
+
+ /**
+ * Necessary for checking how full the inventory is.
+ */
+ void logic();
+
+ /**
+ * Draws the items.
+ */
+ void draw(gcn::Graphics *graphics);
+
+ // KeyListener
+ void keyPressed(gcn::KeyEvent &event);
+ void keyReleased(gcn::KeyEvent &event);
+
+ // MouseListener
+ void mousePressed(gcn::MouseEvent &event);
+ void mouseDragged(gcn::MouseEvent &event);
+ void mouseReleased(gcn::MouseEvent &event);
+ void mouseMoved(gcn::MouseEvent &event);
+ void mouseExited(gcn::MouseEvent &event);
+
+ // WidgetListener
+ void widgetResized(const gcn::Event &event);
+
+ /**
+ * Returns the selected item.
+ */
+ Item *getSelectedItem() const;
+
+ /**
+ * Sets selected item to NULL.
+ */
+ void selectNone();
+
+ /**
+ * Adds a listener to the list that's notified each time a change to
+ * the selection occurs.
+ */
+ void addSelectionListener(gcn::SelectionListener *listener)
+ { mSelectionListeners.push_back(listener); }
+
+ /**
+ * Removes a listener from the list that's notified each time a change
+ * to the selection occurs.
+ */
+ void removeSelectionListener(gcn::SelectionListener *listener)
+ { mSelectionListeners.remove(listener); }
+
+ private:
+ enum Direction
+ {
+ Left = 0,
+ Right,
+ Up,
+ Down
+ };
+
+ enum SelectionState
+ {
+ SEL_NONE = 0,
+ SEL_SELECTED,
+ SEL_SELECTING,
+ SEL_DESELECTING,
+ SEL_DRAGGING
+ };
+
+ /**
+ * Execute all the functionality associated with the action key.
+ */
+ void keyAction();
+
+ /**
+ * Moves the highlight in the direction specified.
+ *
+ * @param direction The move direction of the highlighter.
+ */
+ void moveHighlight(Direction direction);
+
+ /**
+ * Sets the currently selected item.
+ */
+ void setSelectedIndex(int index);
+
+ /**
+ * Determine and set the height of the container.
+ */
+ void adjustHeight();
+
+ /**
+ * Sends out selection events to the list of selection listeners.
+ */
+ void distributeValueChangedEvent();
+
+ /**
+ * Gets the slot index based on the cursor position.
+ *
+ * @param x The X coordinate position.
+ * @param y The Y coordinate position.
+ * @return The slot index on success, -1 on failure.
+ */
+ int getSlotIndex(int x, int y) const;
+
+ Inventory *mInventory;
+ int mGridColumns, mGridRows;
+ Image *mSelImg;
+ int mSelectedIndex, mHighlightedIndex;
+ int mLastUsedSlot;
+ SelectionState mSelectionStatus;
+ bool mForceQuantity;
+ bool mSwapItems;
+ bool mDescItems;
+ int mDragPosX, mDragPosY;
+
+ ItemPopup *mItemPopup;
+
+ typedef std::list<gcn::SelectionListener*> SelectionListenerList;
+ typedef SelectionListenerList::iterator SelectionListenerIterator;
+
+ SelectionListenerList mSelectionListeners;
+};
+
+#endif