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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/scrollarea.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 SCROLLAREA_H
+#define SCROLLAREA_H
+
+#include <guichan/widgets/scrollarea.hpp>
+#include <guichan/widgetlistener.hpp>
+
+#ifdef __GNUC__
+#define _UNUSED_ __attribute__ ((unused))
+#else
+#define _UNUSED_
+#endif
+
+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);
+
+ 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;
+};
+
+#endif