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diff --git a/src/guichan/widgets/scrollarea.cpp b/src/guichan/widgets/scrollarea.cpp
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--- a/src/guichan/widgets/scrollarea.cpp
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-/* _______ __ __ __ ______ __ __ _______ __ __
- * / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
- * / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
- * / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
- * / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
- * /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
- * \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
- *
- * Copyright (c) 2004 - 2008 Olof Naessén and Per Larsson
- * Copyright (C) 2011-2012 The ManaPlus Developers
- *
- *
- * 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 "guichan/widgets/scrollarea.hpp"
-
-#include "guichan/exception.hpp"
-#include "guichan/graphics.hpp"
-
-#include "debug.h"
-
-namespace gcn
-{
- ScrollArea::ScrollArea()
- {
- mVScroll = 0;
- mHScroll = 0;
- mHPolicy = SHOW_AUTO;
- mVPolicy = SHOW_AUTO;
- mVBarVisible = false;
- mHBarVisible = false;
- mScrollbarWidth = 12;
- 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 *content)
- {
- mVScroll = 0;
- mHScroll = 0;
- mHPolicy = SHOW_AUTO;
- mVPolicy = SHOW_AUTO;
- mVBarVisible = false;
- mHBarVisible = false;
- mScrollbarWidth = 12;
- 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)
- {
- mVScroll = 0;
- mHScroll = 0;
- mHPolicy = hPolicy;
- mVPolicy = vPolicy;
- mScrollbarWidth = 12;
- 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)
- {
- 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)
- {
- 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();
-
- if (!getContent())
- return 0;
-
- int value = getContent()->getWidth() - getChildrenArea().width +
- 2 * getContent()->getFrameSize();
-
- if (value < 0)
- return 0;
-
- return value;
- }
-
- int ScrollArea::getVerticalMaxScroll()
- {
- checkPolicies();
-
- if (!getContent())
- return 0;
-
- int value;
-
- value = getContent()->getHeight() - getChildrenArea().height +
- 2 * getContent()->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::mousePressed(MouseEvent& mouseEvent)
- {
- int x = mouseEvent.getX();
- int y = mouseEvent.getY();
-
- if (getUpButtonDimension().isPointInRect(x, y))
- {
- setVerticalScrollAmount(getVerticalScrollAmount()
- - mUpButtonScrollAmount);
- mUpButtonPressed = true;
- }
- else if (getDownButtonDimension().isPointInRect(x, y))
- {
- setVerticalScrollAmount(getVerticalScrollAmount()
- + mDownButtonScrollAmount);
- mDownButtonPressed = true;
- }
- else if (getLeftButtonDimension().isPointInRect(x, y))
- {
- setHorizontalScrollAmount(getHorizontalScrollAmount()
- - mLeftButtonScrollAmount);
- mLeftButtonPressed = true;
- }
- else if (getRightButtonDimension().isPointInRect(x, y))
- {
- setHorizontalScrollAmount(getHorizontalScrollAmount()
- + mRightButtonScrollAmount);
- mRightButtonPressed = true;
- }
- else if (getVerticalMarkerDimension().isPointInRect(x, y))
- {
- mIsHorizontalMarkerDragged = false;
- mIsVerticalMarkerDragged = true;
-
- mVerticalMarkerDragOffset = y - getVerticalMarkerDimension().y;
- }
- else if (getVerticalBarDimension().isPointInRect(x, y))
- {
- if (y < getVerticalMarkerDimension().y)
- {
- setVerticalScrollAmount(getVerticalScrollAmount()
- - (int)(getChildrenArea().height * 0.95));
- }
- else
- {
- setVerticalScrollAmount(getVerticalScrollAmount()
- + (int)(getChildrenArea().height * 0.95));
- }
- }
- else if (getHorizontalMarkerDimension().isPointInRect(x, y))
- {
- mIsHorizontalMarkerDragged = true;
- mIsVerticalMarkerDragged = false;
-
- mHorizontalMarkerDragOffset = x - getHorizontalMarkerDimension().x;
- }
- else if (getHorizontalBarDimension().isPointInRect(x, y))
- {
- if (x < getHorizontalMarkerDimension().x)
- {
- setHorizontalScrollAmount(getHorizontalScrollAmount()
- - (int)(getChildrenArea().width * 0.95));
- }
- else
- {
- setHorizontalScrollAmount(getHorizontalScrollAmount()
- + (int)(getChildrenArea().width * 0.95));
- }
- }
- }
-
- void ScrollArea::mouseReleased(MouseEvent& mouseEvent)
- {
- mUpButtonPressed = false;
- mDownButtonPressed = false;
- mLeftButtonPressed = false;
- mRightButtonPressed = false;
- mIsHorizontalMarkerDragged = false;
- mIsVerticalMarkerDragged = false;
-
- mouseEvent.consume();
- }
-
- void ScrollArea::mouseDragged(MouseEvent& mouseEvent)
- {
- if (mIsVerticalMarkerDragged)
- {
- Rectangle barDim = getVerticalBarDimension();
-
- int pos = mouseEvent.getY() - barDim.y
- - mVerticalMarkerDragOffset;
- int length = getVerticalMarkerDimension().height;
-
- if ((barDim.height - length) > 0)
- {
- setVerticalScrollAmount((getVerticalMaxScroll() * pos)
- / (barDim.height - length));
- }
- else
- {
- setVerticalScrollAmount(0);
- }
- }
-
- if (mIsHorizontalMarkerDragged)
- {
- Rectangle barDim = getHorizontalBarDimension();
-
- int pos = mouseEvent.getX() - barDim.x
- - mHorizontalMarkerDragOffset;
- int length = getHorizontalMarkerDimension().width;
-
- if ((barDim.width - length) > 0)
- {
- setHorizontalScrollAmount((getHorizontalMaxScroll() * pos)
- / (barDim.width - length));
- }
- else
- {
- setHorizontalScrollAmount(0);
- }
- }
-
- mouseEvent.consume();
- }
-
- void ScrollArea::draw(Graphics *graphics)
- {
- drawBackground(graphics);
-
- if (mVBarVisible)
- {
- drawUpButton(graphics);
- drawDownButton(graphics);
- drawVBar(graphics);
- drawVMarker(graphics);
- }
-
- if (mHBarVisible)
- {
- drawLeftButton(graphics);
- drawRightButton(graphics);
- drawHBar(graphics);
- drawHMarker(graphics);
- }
-
- if (mHBarVisible && mVBarVisible)
- {
- graphics->setColor(getBaseColor());
- graphics->fillRectangle(Rectangle(getWidth() - mScrollbarWidth,
- getHeight() - mScrollbarWidth,
- mScrollbarWidth, mScrollbarWidth));
- }
-
- drawChildren(graphics);
- }
-
- void ScrollArea::drawHBar(Graphics* graphics)
- {
- Rectangle dim = getHorizontalBarDimension();
-
- graphics->pushClipArea(dim);
-
- int alpha = getBaseColor().a;
- Color trackColor = getBaseColor() - 0x101010;
- trackColor.a = alpha;
- Color shadowColor = getBaseColor() - 0x303030;
- shadowColor.a = alpha;
-
- graphics->setColor(trackColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(shadowColor);
- graphics->drawLine(0, 0, dim.width, 0);
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawVBar(Graphics* graphics)
- {
- Rectangle dim = getVerticalBarDimension();
-
- graphics->pushClipArea(dim);
-
- int alpha = getBaseColor().a;
- Color trackColor = getBaseColor() - 0x101010;
- trackColor.a = alpha;
- Color shadowColor = getBaseColor() - 0x303030;
- shadowColor.a = alpha;
-
- graphics->setColor(trackColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(shadowColor);
- graphics->drawLine(0, 0, 0, dim.height);
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawBackground(Graphics *graphics)
- {
- if (isOpaque())
- {
- graphics->setColor(getBackgroundColor());
- graphics->fillRectangle(getChildrenArea());
- }
- }
-
- void ScrollArea::drawUpButton(Graphics* graphics)
- {
- Rectangle dim = getUpButtonDimension();
- graphics->pushClipArea(dim);
-
- Color highlightColor;
- Color shadowColor;
- Color faceColor;
- int offset;
- int alpha = getBaseColor().a;
-
- if (mUpButtonPressed)
- {
- faceColor = getBaseColor() - 0x303030;
- faceColor.a = alpha;
- highlightColor = faceColor - 0x303030;
- highlightColor.a = alpha;
- shadowColor = getBaseColor();
- shadowColor.a = alpha;
-
- offset = 1;
- }
- else
- {
- faceColor = getBaseColor();
- faceColor.a = alpha;
- highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- offset = 0;
- }
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
-
- graphics->setColor(getForegroundColor());
-
- int i;
- int w = dim.height / 2;
- int h = w / 2 + 2;
- for (i = 0; i < w / 2; ++i)
- {
- graphics->drawLine(w - i + offset, i + h + offset,
- w + i + offset, i + h + offset);
- }
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawDownButton(Graphics* graphics)
- {
- Rectangle dim = getDownButtonDimension();
- graphics->pushClipArea(dim);
-
- Color highlightColor;
- Color shadowColor;
- Color faceColor;
- int offset;
- int alpha = getBaseColor().a;
-
- if (mDownButtonPressed)
- {
- faceColor = getBaseColor() - 0x303030;
- faceColor.a = alpha;
- highlightColor = faceColor - 0x303030;
- highlightColor.a = alpha;
- shadowColor = getBaseColor();
- shadowColor.a = alpha;
-
- offset = 1;
- }
- else
- {
- faceColor = getBaseColor();
- faceColor.a = alpha;
- highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- offset = 0;
- }
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
-
- graphics->setColor(getForegroundColor());
-
- int i;
- int w = dim.height / 2;
- int h = w + 1;
- for (i = 0; i < w / 2; ++i)
- {
- graphics->drawLine(w - i + offset, -i + h + offset,
- w + i + offset, -i + h + offset);
- }
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawLeftButton(Graphics* graphics)
- {
- Rectangle dim = getLeftButtonDimension();
- graphics->pushClipArea(dim);
-
- Color highlightColor;
- Color shadowColor;
- Color faceColor;
- int offset;
- int alpha = getBaseColor().a;
-
- if (mLeftButtonPressed)
- {
- faceColor = getBaseColor() - 0x303030;
- faceColor.a = alpha;
- highlightColor = faceColor - 0x303030;
- highlightColor.a = alpha;
- shadowColor = getBaseColor();
- shadowColor.a = alpha;
-
- offset = 1;
- }
- else
- {
- faceColor = getBaseColor();
- faceColor.a = alpha;
- highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- offset = 0;
- }
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
-
- graphics->setColor(getForegroundColor());
-
- int i;
- int w = dim.width / 2;
- int h = w - 2;
- for (i = 0; i < w / 2; ++i)
- {
- graphics->drawLine(i + h + offset, w - i + offset,
- i + h + offset, w + i + offset);
- }
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawRightButton(Graphics* graphics)
- {
- Rectangle dim = getRightButtonDimension();
- graphics->pushClipArea(dim);
-
- Color highlightColor;
- Color shadowColor;
- Color faceColor;
- int offset;
- int alpha = getBaseColor().a;
-
- if (mRightButtonPressed)
- {
- faceColor = getBaseColor() - 0x303030;
- faceColor.a = alpha;
- highlightColor = faceColor - 0x303030;
- highlightColor.a = alpha;
- shadowColor = getBaseColor();
- shadowColor.a = alpha;
-
- offset = 1;
- }
- else
- {
- faceColor = getBaseColor();
- faceColor.a = alpha;
- highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- offset = 0;
- }
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(0, 0, dim.width, dim.height));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
-
- graphics->setColor(getForegroundColor());
-
- int i;
- int w = dim.width / 2;
- int h = w + 1;
- for (i = 0; i < w / 2; ++i)
- {
- graphics->drawLine(-i + h + offset, w - i + offset,
- -i + h + offset, w + i + offset);
- }
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawVMarker(Graphics* graphics)
- {
- Rectangle dim = getVerticalMarkerDimension();
- graphics->pushClipArea(dim);
-
- int alpha = getBaseColor().a;
- Color faceColor = getBaseColor();
- faceColor.a = alpha;
- Color highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- Color shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(1, 1,
- dim.width - 1, dim.height - 1));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
-
- graphics->popClipArea();
- }
-
- void ScrollArea::drawHMarker(Graphics* graphics)
- {
- Rectangle dim = getHorizontalMarkerDimension();
- graphics->pushClipArea(dim);
-
- int alpha = getBaseColor().a;
- Color faceColor = getBaseColor();
- faceColor.a = alpha;
- Color highlightColor = faceColor + 0x303030;
- highlightColor.a = alpha;
- Color shadowColor = faceColor - 0x303030;
- shadowColor.a = alpha;
-
- graphics->setColor(faceColor);
- graphics->fillRectangle(Rectangle(1, 1,
- dim.width - 1, dim.height - 1));
-
- graphics->setColor(highlightColor);
- graphics->drawLine(0, 0, dim.width - 1, 0);
- graphics->drawLine(0, 1, 0, dim.height - 1);
-
- graphics->setColor(shadowColor);
- graphics->drawLine(1, dim.height - 1, dim.width - 1, dim.height - 1);
- graphics->drawLine(dim.width - 1, 0, dim.width - 1, dim.height - 1);
-
- graphics->popClipArea();
- }
-
- void ScrollArea::logic()
- {
- checkPolicies();
-
- setVerticalScrollAmount(getVerticalScrollAmount());
- setHorizontalScrollAmount(getHorizontalScrollAmount());
-
- if (getContent())
- {
- getContent()->setPosition(-mHScroll + getContent()->getFrameSize(),
- -mVScroll + getContent()->getFrameSize());
- getContent()->logic();
- }
- }
-
- void ScrollArea::checkPolicies()
- {
- int w = getWidth();
- int h = getHeight();
-
- mHBarVisible = false;
- mVBarVisible = false;
-
-
- if (!getContent())
- {
- mHBarVisible = (mHPolicy == SHOW_ALWAYS);
- mVBarVisible = (mVPolicy == SHOW_ALWAYS);
- return;
- }
-
- if (mHPolicy == SHOW_AUTO &&
- mVPolicy == SHOW_AUTO)
- {
- if (getContent()->getWidth() <= w
- && getContent()->getHeight() <= h)
- {
- mHBarVisible = false;
- mVBarVisible = false;
- }
-
- if (getContent()->getWidth() > w)
- {
- mHBarVisible = true;
- }
-
- if ((getContent()->getHeight() > h)
- || (mHBarVisible && getContent()->getHeight()
- > h - mScrollbarWidth))
- {
- mVBarVisible = true;
- }
-
- if (mVBarVisible && getContent()->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 = (getContent()->getWidth() > w);
- }
- else // (mVPolicy == SHOW_ALWAYS)
- {
- mHBarVisible = (getContent()->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 = (getContent()->getHeight() > h);
- }
- else // (mHPolicy == SHOW_ALWAYS)
- {
- mVBarVisible = (getContent()->getHeight()
- > h - mScrollbarWidth);
- }
- break;
- default:
- throw GCN_EXCEPTION("Vertical scroll policy invalid.");
- }
- }
-
- Rectangle ScrollArea::getUpButtonDimension() const
- {
- if (!mVBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- return Rectangle(getWidth() - mScrollbarWidth, 0,
- mScrollbarWidth, mScrollbarWidth);
- }
-
- Rectangle ScrollArea::getDownButtonDimension() const
- {
- if (!mVBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- if (mVBarVisible && mHBarVisible)
- {
- return Rectangle(getWidth() - mScrollbarWidth,
- getHeight() - mScrollbarWidth*2,
- mScrollbarWidth,
- mScrollbarWidth);
- }
-
- return Rectangle(getWidth() - mScrollbarWidth,
- getHeight() - mScrollbarWidth,
- mScrollbarWidth,
- mScrollbarWidth);
- }
-
- Rectangle ScrollArea::getLeftButtonDimension() const
- {
- if (!mHBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- return Rectangle(0, getHeight() - mScrollbarWidth,
- mScrollbarWidth, mScrollbarWidth);
- }
-
- Rectangle ScrollArea::getRightButtonDimension() const
- {
- if (!mHBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- if (mVBarVisible && mHBarVisible)
- {
- return Rectangle(getWidth() - mScrollbarWidth*2,
- getHeight() - mScrollbarWidth,
- mScrollbarWidth,
- mScrollbarWidth);
- }
-
- return Rectangle(getWidth() - mScrollbarWidth,
- getHeight() - mScrollbarWidth,
- mScrollbarWidth,
- mScrollbarWidth);
- }
-
- Rectangle ScrollArea::getChildrenArea()
- {
- Rectangle area = Rectangle(0, 0,
- mVBarVisible ? (getWidth() - mScrollbarWidth) : getWidth(),
- mHBarVisible ? (getHeight() - mScrollbarWidth) : getHeight());
-
- if (area.width < 0 || area.height < 0)
- return Rectangle();
-
- return area;
- }
-
- Rectangle ScrollArea::getVerticalBarDimension() const
- {
- if (!mVBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- if (mHBarVisible)
- {
- return Rectangle(getWidth() - mScrollbarWidth,
- getUpButtonDimension().height,
- mScrollbarWidth,
- getHeight()
- - getUpButtonDimension().height
- - getDownButtonDimension().height
- - mScrollbarWidth);
- }
-
- return Rectangle(getWidth() - mScrollbarWidth,
- getUpButtonDimension().height,
- mScrollbarWidth,
- getHeight()
- - getUpButtonDimension().height
- - getDownButtonDimension().height);
- }
-
- Rectangle ScrollArea::getHorizontalBarDimension() const
- {
- if (!mHBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- if (mVBarVisible)
- {
- return Rectangle(getLeftButtonDimension().width,
- getHeight() - mScrollbarWidth,
- getWidth()
- - getLeftButtonDimension().width
- - getRightButtonDimension().width
- - mScrollbarWidth,
- mScrollbarWidth);
- }
-
- return Rectangle(getLeftButtonDimension().width,
- getHeight() - mScrollbarWidth,
- getWidth()
- - getLeftButtonDimension().width
- - getRightButtonDimension().width,
- mScrollbarWidth);
- }
-
- Rectangle ScrollArea::getVerticalMarkerDimension()
- {
- if (!mVBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- int length, pos;
- int height;
-
- if (mHBarVisible)
- {
- height = getHeight() - getUpButtonDimension().height
- - getDownButtonDimension().height - mScrollbarWidth;
- }
- else
- {
- height = getHeight() - getUpButtonDimension().height
- - getDownButtonDimension().height;
- }
-
- if (getContent() && getContent()->getHeight() != 0)
- {
- length = (height * getChildrenArea().height)
- / getContent()->getHeight();
- }
- else
- {
- length = height;
- }
-
- if (length < mScrollbarWidth)
- length = mScrollbarWidth;
-
- if (length > height)
- length = height;
-
- if (getVerticalMaxScroll() != 0)
- {
- pos = ((height - length) * getVerticalScrollAmount())
- / getVerticalMaxScroll();
- }
- else
- {
- pos = 0;
- }
-
- return Rectangle(getWidth() - mScrollbarWidth,
- getUpButtonDimension().height + pos, mScrollbarWidth, length);
- }
-
- Rectangle ScrollArea::getHorizontalMarkerDimension()
- {
- if (!mHBarVisible)
- return Rectangle(0, 0, 0, 0);
-
- int length, pos;
- int width;
-
- if (mVBarVisible)
- {
- width = getWidth() - getLeftButtonDimension().width
- - getRightButtonDimension().width - mScrollbarWidth;
- }
- else
- {
- width = getWidth() - getLeftButtonDimension().width
- - getRightButtonDimension().width;
- }
-
- if (getContent() && getContent()->getWidth() != 0)
- {
- length = (width * getChildrenArea().width)
- / getContent()->getWidth();
- }
- else
- {
- length = width;
- }
-
- if (length < mScrollbarWidth)
- length = mScrollbarWidth;
-
- if (length > width)
- length = width;
-
- if (getHorizontalMaxScroll() != 0)
- {
- pos = ((width - length) * getHorizontalScrollAmount())
- / getHorizontalMaxScroll();
- }
- else
- {
- pos = 0;
- }
-
- return Rectangle(getLeftButtonDimension().width + pos,
- getHeight() - mScrollbarWidth, length, mScrollbarWidth);
- }
-
- void ScrollArea::showWidgetPart(Widget* widget, Rectangle area)
- {
- if (widget != getContent())
- throw GCN_EXCEPTION("Widget not content widget");
-
- BasicContainer::showWidgetPart(widget, area);
-
- setHorizontalScrollAmount(getContent()->getFrameSize()
- - getContent()->getX());
- setVerticalScrollAmount(getContent()->getFrameSize()
- - getContent()->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;
- }
-}
-
-/*
- * Wow! This is a looooong source file.
- */
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-29 15:25:17 +0000