move exguichan files into gui/base/

1 files changed, 600 insertions, 0 deletions

diff --git a/src/gui/base/widgets/scrollarea.cpp b/src/gui/base/widgets/scrollarea.cpp
new file mode 100644
index 000000000..e3dcfc61c
--- /dev/null
+++ b/src/gui/base/widgets/scrollarea.cpp
@@ -0,0 +1,600 @@
+/*
+ *  The ManaPlus Client
+ *  Copyright (C) 2011-2014  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/>.
+ */
+
+/*      _______   __   __   __   ______   __   __   _______   __   __
+ *     / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___  /\ /  |\/ /\
+ *    / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
+ *   / / /__   / / // / // / // / /    / ___  / // ___  / // /| ' / /
+ *  / /_// /\ / /_// / // / // /_/_   / / // / // /\_/ / // / |  / /
+ * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
+ * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
+ *
+ * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
+ *
+ *
+ * Per Larsson a.k.a finalman
+ * Olof Naessén a.k.a jansem/yakslem
+ *
+ * Visit: http://guichan.sourceforge.net
+ *
+ * License: (BSD)
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name of Guichan nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+ * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
+ * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+/*
+ * For comments regarding functions please see the header file.
+ */
+
+#include "gui/base/widgets/scrollarea.hpp"
+
+#include "gui/base/exception.hpp"
+#include "gui/base/graphics.hpp"
+
+#include "debug.h"
+
+namespace gcn
+{
+    ScrollArea::ScrollArea() :
+        gcn::BasicContainer(),
+        gcn::MouseListener(),
+        mVScroll(0),
+        mHScroll(0),
+        mScrollbarWidth(12),
+        mHPolicy(SHOW_AUTO),
+        mVPolicy(SHOW_AUTO),
+        mVBarVisible(false),
+        mHBarVisible(false),
+        mUpButtonPressed(false),
+        mDownButtonPressed(false),
+        mLeftButtonPressed(false),
+        mRightButtonPressed(false),
+        mUpButtonScrollAmount(10),
+        mDownButtonScrollAmount(10),
+        mLeftButtonScrollAmount(10),
+        mRightButtonScrollAmount(10),
+        mIsVerticalMarkerDragged(false),
+        mIsHorizontalMarkerDragged(false),
+        mHorizontalMarkerDragOffset(0),
+        mVerticalMarkerDragOffset(0),
+        mOpaque(true)
+    {
+        addMouseListener(this);
+    }
+
+    ScrollArea::ScrollArea(Widget *const content) :
+        gcn::BasicContainer(),
+        gcn::MouseListener(),
+        mVScroll(0),
+        mHScroll(0),
+        mScrollbarWidth(12),
+        mHPolicy(SHOW_AUTO),
+        mVPolicy(SHOW_AUTO),
+        mVBarVisible(false),
+        mHBarVisible(false),
+        mUpButtonPressed(false),
+        mDownButtonPressed(false),
+        mLeftButtonPressed(false),
+        mRightButtonPressed(false),
+        mUpButtonScrollAmount(10),
+        mDownButtonScrollAmount(10),
+        mLeftButtonScrollAmount(10),
+        mRightButtonScrollAmount(10),
+        mIsVerticalMarkerDragged(false),
+        mIsHorizontalMarkerDragged(false),
+        mHorizontalMarkerDragOffset(0),
+        mVerticalMarkerDragOffset(0),
+        mOpaque(true)
+    {
+        setContent(content);
+        addMouseListener(this);
+    }
+
+    ScrollArea::ScrollArea(Widget *content,
+                           ScrollPolicy hPolicy,
+                           ScrollPolicy vPolicy) :
+        gcn::BasicContainer(),
+        gcn::MouseListener(),
+        mVScroll(0),
+        mHScroll(0),
+        mScrollbarWidth(12),
+        mHPolicy(hPolicy),
+        mVPolicy(vPolicy),
+        mVBarVisible(false),
+        mHBarVisible(false),
+        mUpButtonPressed(false),
+        mDownButtonPressed(false),
+        mLeftButtonPressed(false),
+        mRightButtonPressed(false),
+        mUpButtonScrollAmount(10),
+        mDownButtonScrollAmount(10),
+        mLeftButtonScrollAmount(10),
+        mRightButtonScrollAmount(10),
+        mIsVerticalMarkerDragged(false),
+        mIsHorizontalMarkerDragged(false),
+        mHorizontalMarkerDragOffset(0),
+        mVerticalMarkerDragOffset(0),
+        mOpaque(true)
+    {
+        setContent(content);
+        addMouseListener(this);
+    }
+
+    ScrollArea::~ScrollArea()
+    {
+        setContent(nullptr);
+    }
+
+    void ScrollArea::setContent(Widget* widget)
+    {
+        if (widget)
+        {
+            clear();
+            add(widget);
+            widget->setPosition(0, 0);
+        }
+        else
+        {
+            clear();
+        }
+
+        checkPolicies();
+    }
+
+    Widget* ScrollArea::getContent()
+    {
+        if (!mWidgets.empty())
+            return *mWidgets.begin();
+
+        return nullptr;
+    }
+
+    void ScrollArea::setHorizontalScrollPolicy(ScrollPolicy hPolicy)
+    {
+        mHPolicy = hPolicy;
+        checkPolicies();
+    }
+
+    ScrollArea::ScrollPolicy ScrollArea::getHorizontalScrollPolicy() const
+    {
+        return mHPolicy;
+    }
+
+    void ScrollArea::setVerticalScrollPolicy(ScrollPolicy vPolicy)
+    {
+        mVPolicy = vPolicy;
+        checkPolicies();
+    }
+
+    ScrollArea::ScrollPolicy ScrollArea::getVerticalScrollPolicy() const
+    {
+        return mVPolicy;
+    }
+
+    void ScrollArea::setScrollPolicy(ScrollPolicy hPolicy,
+                                     ScrollPolicy vPolicy)
+    {
+        mHPolicy = hPolicy;
+        mVPolicy = vPolicy;
+        checkPolicies();
+    }
+
+    void ScrollArea::setVerticalScrollAmount(int vScroll)
+    {
+        const int max = getVerticalMaxScroll();
+
+        mVScroll = vScroll;
+
+        if (vScroll > max)
+            mVScroll = max;
+
+        if (vScroll < 0)
+            mVScroll = 0;
+    }
+
+    int ScrollArea::getVerticalScrollAmount() const
+    {
+        return mVScroll;
+    }
+
+    void ScrollArea::setHorizontalScrollAmount(int hScroll)
+    {
+        const int max = getHorizontalMaxScroll();
+
+        mHScroll = hScroll;
+
+        if (hScroll > max)
+            mHScroll = max;
+        else if (hScroll < 0)
+            mHScroll = 0;
+    }
+
+    int ScrollArea::getHorizontalScrollAmount() const
+    {
+        return mHScroll;
+    }
+
+    void ScrollArea::setScrollAmount(int hScroll, int vScroll)
+    {
+        setHorizontalScrollAmount(hScroll);
+        setVerticalScrollAmount(vScroll);
+    }
+
+    int ScrollArea::getHorizontalMaxScroll()
+    {
+        checkPolicies();
+
+        const Widget *const content = getContent();
+        if (!content)
+            return 0;
+
+        const int value = content->getWidth() - getChildrenArea().width +
+            2 * content->getFrameSize();
+
+        if (value < 0)
+            return 0;
+
+        return value;
+    }
+
+    int ScrollArea::getVerticalMaxScroll()
+    {
+        checkPolicies();
+
+        const Widget *const content = getContent();
+        if (!content)
+            return 0;
+
+        int value;
+
+        value = content->getHeight() - getChildrenArea().height +
+            2 * content->getFrameSize();
+
+        if (value < 0)
+            return 0;
+
+        return value;
+    }
+
+    void ScrollArea::setScrollbarWidth(int width)
+    {
+        if (width > 0)
+            mScrollbarWidth = width;
+        else
+            throw GCN_EXCEPTION("Width should be greater then 0.");
+    }
+
+    int ScrollArea::getScrollbarWidth() const
+    {
+        return mScrollbarWidth;
+    }
+
+    void ScrollArea::mouseReleased(MouseEvent& mouseEvent)
+    {
+        mUpButtonPressed = false;
+        mDownButtonPressed = false;
+        mLeftButtonPressed = false;
+        mRightButtonPressed = false;
+        mIsHorizontalMarkerDragged = false;
+        mIsVerticalMarkerDragged = false;
+
+        mouseEvent.consume();
+    }
+
+    void ScrollArea::draw(Graphics *graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawHBar(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawVBar(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawBackground(Graphics *graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawUpButton(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawDownButton(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawLeftButton(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawRightButton(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawVMarker(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::drawHMarker(Graphics* graphics A_UNUSED)
+    {
+    }
+
+    void ScrollArea::logic()
+    {
+        BLOCK_START("ScrollArea::logic")
+        checkPolicies();
+
+        setVerticalScrollAmount(getVerticalScrollAmount());
+        setHorizontalScrollAmount(getHorizontalScrollAmount());
+
+        Widget *const content = getContent();
+        if (content)
+        {
+            const int frameSize = content->getFrameSize();
+            content->setPosition(-mHScroll + frameSize, -mVScroll + frameSize);
+            content->logic();
+        }
+        BLOCK_END("ScrollArea::logic")
+    }
+
+    void ScrollArea::checkPolicies()
+    {
+        const int w = getWidth();
+        const int h = getHeight();
+
+        mHBarVisible = false;
+        mVBarVisible = false;
+
+        const Widget *const content = getContent();
+        if (!content)
+        {
+            mHBarVisible = (mHPolicy == SHOW_ALWAYS);
+            mVBarVisible = (mVPolicy == SHOW_ALWAYS);
+            return;
+        }
+
+        if (mHPolicy == SHOW_AUTO &&
+            mVPolicy == SHOW_AUTO)
+        {
+            if (content->getWidth() <= w
+                && content->getHeight() <= h)
+            {
+                mHBarVisible = false;
+                mVBarVisible = false;
+            }
+
+            if (content->getWidth() > w)
+            {
+                mHBarVisible = true;
+            }
+
+            if ((content->getHeight() > h)
+                || (mHBarVisible && content->getHeight()
+                > h - mScrollbarWidth))
+            {
+                mVBarVisible = true;
+            }
+
+            if (mVBarVisible && content->getWidth() > w - mScrollbarWidth)
+                mHBarVisible = true;
+
+            return;
+        }
+
+        switch (mHPolicy)
+        {
+            case SHOW_NEVER:
+                mHBarVisible = false;
+                break;
+
+            case SHOW_ALWAYS:
+                mHBarVisible = true;
+                break;
+
+            case SHOW_AUTO:
+                if (mVPolicy == SHOW_NEVER)
+                {
+                    mHBarVisible = (content->getWidth() > w);
+                }
+                else  // (mVPolicy == SHOW_ALWAYS)
+                {
+                    mHBarVisible = (content->getWidth()
+                        > w - mScrollbarWidth);
+                }
+                break;
+
+            default:
+                throw GCN_EXCEPTION("Horizontal scroll policy invalid.");
+        }
+
+        switch (mVPolicy)
+        {
+            case SHOW_NEVER:
+                mVBarVisible = false;
+                break;
+
+            case SHOW_ALWAYS:
+                mVBarVisible = true;
+                break;
+
+            case SHOW_AUTO:
+                if (mHPolicy == SHOW_NEVER)
+                {
+                    mVBarVisible = (content->getHeight() > h);
+                }
+                else  // (mHPolicy == SHOW_ALWAYS)
+                {
+                    mVBarVisible = (content->getHeight()
+                        > h - mScrollbarWidth);
+                }
+                break;
+            default:
+                throw GCN_EXCEPTION("Vertical scroll policy invalid.");
+        }
+    }
+
+    Rectangle ScrollArea::getChildrenArea()
+    {
+        const Rectangle area = Rectangle(0, 0,
+            mVBarVisible ? (getWidth() - mScrollbarWidth) : getWidth(),
+            mHBarVisible ? (getHeight() - mScrollbarWidth) : getHeight());
+
+        if (area.width < 0 || area.height < 0)
+            return Rectangle();
+
+        return area;
+    }
+
+    void ScrollArea::showWidgetPart(Widget* widget, Rectangle area)
+    {
+        const Widget *const content = getContent();
+        if (widget != content)
+            throw GCN_EXCEPTION("Widget not content widget");
+
+        BasicContainer::showWidgetPart(widget, area);
+
+        setHorizontalScrollAmount(content->getFrameSize()
+            - content->getX());
+        setVerticalScrollAmount(content->getFrameSize()
+            - content->getY());
+    }
+
+    Widget *ScrollArea::getWidgetAt(int x, int y)
+    {
+        if (getChildrenArea().isPointInRect(x, y))
+            return getContent();
+
+        return nullptr;
+    }
+
+    void ScrollArea::mouseWheelMovedUp(MouseEvent& mouseEvent)
+    {
+        if (mouseEvent.isConsumed())
+            return;
+
+        setVerticalScrollAmount(getVerticalScrollAmount()
+            - getChildrenArea().height / 8);
+
+        mouseEvent.consume();
+    }
+
+    void ScrollArea::mouseWheelMovedDown(MouseEvent& mouseEvent)
+    {
+        if (mouseEvent.isConsumed())
+            return;
+
+        setVerticalScrollAmount(getVerticalScrollAmount()
+            + getChildrenArea().height / 8);
+
+        mouseEvent.consume();
+    }
+
+    void ScrollArea::setWidth(int width)
+    {
+        Widget::setWidth(width);
+        checkPolicies();
+    }
+
+    void ScrollArea::setHeight(int height)
+    {
+        Widget::setHeight(height);
+        checkPolicies();
+    }
+
+    void ScrollArea::setDimension(const Rectangle& dimension)
+    {
+        Widget::setDimension(dimension);
+        checkPolicies();
+    }
+
+    void ScrollArea::setLeftButtonScrollAmount(int amount)
+    {
+        mLeftButtonScrollAmount = amount;
+    }
+
+    void ScrollArea::setRightButtonScrollAmount(int amount)
+    {
+        mRightButtonScrollAmount = amount;
+    }
+
+    void ScrollArea::setUpButtonScrollAmount(int amount)
+    {
+        mUpButtonScrollAmount = amount;
+    }
+
+    void ScrollArea::setDownButtonScrollAmount(int amount)
+    {
+        mDownButtonScrollAmount = amount;
+    }
+
+    int ScrollArea::getLeftButtonScrollAmount() const
+    {
+        return mLeftButtonScrollAmount;
+    }
+
+    int ScrollArea::getRightButtonScrollAmount() const
+    {
+        return mRightButtonScrollAmount;
+    }
+
+    int ScrollArea::getUpButtonScrollAmount() const
+    {
+        return mUpButtonScrollAmount;
+    }
+
+    int ScrollArea::getDownButtonScrollAmount() const
+    {
+        return mDownButtonScrollAmount;
+    }
+
+    void ScrollArea::setOpaque(bool opaque)
+    {
+        mOpaque = opaque;
+    }
+
+    bool ScrollArea::isOpaque() const
+    {
+        return mOpaque;
+    }
+}  // namespace gcn