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/*
* The ManaPlus Client
* Copyright (C) 2004-2009 The Mana World Development Team
* Copyright (C) 2009-2010 The Mana Developers
* Copyright (C) 2011 The ManaPlus Developers
*
* This file is part of The ManaPlus 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 SCROLLAREA_H
#define SCROLLAREA_H
#include <guichan/widgets/scrollarea.hpp>
#include <guichan/widgetlistener.hpp>
#ifdef __GNUC__
#define A_UNUSED __attribute__ ((unused))
#else
#define A_UNUSED
#endif
class GraphicsVertexes;
class Image;
class ImageRect;
/**
* A scroll area.
*
* Contrary to Guichan's scroll area, this scroll area takes ownership over its
* content. However, it won't delete a previously set content widget when
* setContent is called!
*
* \ingroup GUI
*/
class ScrollArea : public gcn::ScrollArea, public gcn::WidgetListener
{
public:
/**
* Constructor that takes no content. Needed for use with the DropDown
* class.
*/
ScrollArea();
/**
* Constructor.
*
* @param content the initial content to show in the scroll area
*/
ScrollArea(gcn::Widget *content);
/**
* Destructor. Also deletes the content.
*/
~ScrollArea();
/**
* Logic function optionally adapts width or height of contents. This
* depends on the scrollbar settings.
*/
void logic();
/**
* Update the alpha value to the graphic components.
*/
void updateAlpha();
/**
* Draws the scroll area.
*/
void draw(gcn::Graphics *graphics);
/**
* Draws the background and border of the scroll area.
*/
void drawFrame(gcn::Graphics *graphics);
/**
* Sets whether the widget should draw its background or not.
*/
void setOpaque(bool opaque);
/**
* Returns whether the widget draws its background or not.
*/
bool isOpaque() const { return mOpaque; }
/**
* Called when the mouse moves in the widget area.
*/
void mouseMoved(gcn::MouseEvent& event);
/**
* Called when the mouse enteres the widget area.
*/
void mouseEntered(gcn::MouseEvent& event);
/**
* Called when the mouse leaves the widget area.
*/
void mouseExited(gcn::MouseEvent& event);
void widgetResized(const gcn::Event &event);
void widgetMoved(const gcn::Event &event);
protected:
enum BUTTON_DIR
{
UP = 0,
DOWN,
LEFT,
RIGHT
};
/**
* Initializes the scroll area.
*/
void init();
void drawButton(gcn::Graphics *graphics, BUTTON_DIR dir);
void drawUpButton(gcn::Graphics *graphics);
void drawDownButton(gcn::Graphics *graphics);
void drawLeftButton(gcn::Graphics *graphics);
void drawRightButton(gcn::Graphics *graphics);
void drawVBar(gcn::Graphics *graphics);
void drawHBar(gcn::Graphics *graphics);
void drawVMarker(gcn::Graphics *graphics);
void drawHMarker(gcn::Graphics *graphics);
static int instances;
static float mAlpha;
static ImageRect background;
static ImageRect vMarker;
static ImageRect vMarkerHi;
static Image *buttons[4][2];
int mX, mY;
bool mHasMouse;
bool mOpaque;
GraphicsVertexes *mVertexes;
bool mRedraw;
int mXOffset;
int mYOffset;
int mDrawWidth;
int mDrawHeight;
gcn::Color mGray;
gcn::Color mBackground;
};
#endif
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