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frodo-wii/Src/gui/guichan/widgets/scrollarea.cpp

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Add gui code (not used yet but builds)
2009-11-10 07:12:10 +01:00
/* _______ __ __ __ ______ __ __ _______ __ __
* / _____/\ / /\ / /\ / /\ / ____/\ / /\ / /\ / ___ /\ / |\/ /\
* / /\____\// / // / // / // /\___\// /_// / // /\_/ / // , |/ / /
* / / /__ / / // / // / // / / / ___ / // ___ / // /| ' / /
* / /_// /\ / /_// / // / // /_/_ / / // / // /\_/ / // / | / /
* /______/ //______/ //_/ //_____/\ /_/ //_/ //_/ //_/ //_/ /|_/ /
* \______\/ \______\/ \_\/ \_____\/ \_\/ \_\/ \_\/ \_\/ \_\/ \_\/
*
* Copyright (c) 2004 - 2008 Olof Naess<EFBFBD>n and Per Larsson
*
*
* Per Larsson a.k.a finalman
* Olof Naess<EFBFBD>n 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"
namespace gcn
{
ScrollArea::ScrollArea()
{
mVScroll = 0;
mHScroll = 0;
mHPolicy = SHOW_AUTO;
mVPolicy = SHOW_AUTO;
mScrollbarWidth = 12;
mUpButtonPressed = false;
mDownButtonPressed = false;
mLeftButtonPressed = false;
mRightButtonPressed = false;
mUpButtonScrollAmount = 10;
mDownButtonScrollAmount = 10;
mLeftButtonScrollAmount = 10;
mRightButtonScrollAmount = 10;
mIsVerticalMarkerDragged = false;
mIsHorizontalMarkerDragged =false;
mOpaque = true;
addMouseListener(this);
}
ScrollArea::ScrollArea(Widget *content)
{
mVScroll = 0;
mHScroll = 0;
mHPolicy = SHOW_AUTO;
mVPolicy = SHOW_AUTO;
mScrollbarWidth = 12;
mUpButtonPressed = false;
mDownButtonPressed = false;
mLeftButtonPressed = false;
mRightButtonPressed = false;
mUpButtonScrollAmount = 10;
mDownButtonScrollAmount = 10;
mLeftButtonScrollAmount = 10;
mRightButtonScrollAmount = 10;
mIsVerticalMarkerDragged = false;
mIsHorizontalMarkerDragged =false;
mOpaque = true;
setContent(content);
addMouseListener(this);
}
ScrollArea::ScrollArea(Widget *content,
ScrollPolicy hPolicy,
ScrollPolicy vPolicy)
{
mVScroll = 0;
mHScroll = 0;
mHPolicy = hPolicy;
mVPolicy = vPolicy;
mScrollbarWidth = 12;
mUpButtonPressed = false;
mDownButtonPressed = false;
mLeftButtonPressed = false;
mRightButtonPressed = false;
mUpButtonScrollAmount = 10;
mDownButtonScrollAmount = 10;
mLeftButtonScrollAmount = 10;
mRightButtonScrollAmount = 10;
mIsVerticalMarkerDragged = false;
mIsHorizontalMarkerDragged =false;
mOpaque = true;
setContent(content);
addMouseListener(this);
}
ScrollArea::~ScrollArea()
{
setContent(NULL);
}
void ScrollArea::setContent(Widget* widget)
{
if (widget != NULL)
{
clear();
add(widget);
widget->setPosition(0,0);
}
else
{
clear();
}
checkPolicies();
}
Widget* ScrollArea::getContent()
{
if (mWidgets.size() > 0)
{
return *mWidgets.begin();
}
return NULL;
}
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() == NULL)
{
return 0;
}
int value = getContent()->getWidth() - getChildrenArea().width +
2 * getContent()->getFrameSize();
if (value < 0)
{
return 0;
}
return value;
}
int ScrollArea::getVerticalMaxScroll()
{
checkPolicies();
if (getContent() == NULL)
{
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)
{
int pos = mouseEvent.getY() - getVerticalBarDimension().y - mVerticalMarkerDragOffset;
int length = getVerticalMarkerDimension().height;
Rectangle barDim = getVerticalBarDimension();
if ((barDim.height - length) > 0)
{
setVerticalScrollAmount((getVerticalMaxScroll() * pos)
/ (barDim.height - length));
}
else
{
setVerticalScrollAmount(0);
}
}
if (mIsHorizontalMarkerDragged)
{
int pos = mouseEvent.getX() - getHorizontalBarDimension().x - mHorizontalMarkerDragOffset;
int length = getHorizontalMarkerDimension().width;
Rectangle barDim = getHorizontalBarDimension();
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() != NULL)
{
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()
{
if (!mVBarVisible)
{
return Rectangle(0, 0, 0, 0);
}
return Rectangle(getWidth() - mScrollbarWidth,
0,
mScrollbarWidth,
mScrollbarWidth);
}
Rectangle ScrollArea::getDownButtonDimension()
{
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()
{
if (!mHBarVisible)
{
return Rectangle(0, 0, 0, 0);
}
return Rectangle(0,
getHeight() - mScrollbarWidth,
mScrollbarWidth,
mScrollbarWidth);
}
Rectangle ScrollArea::getRightButtonDimension()
{
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()
{
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()
{
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;
Rectangle barDim = getVerticalBarDimension();
if (getContent() && getContent()->getHeight() != 0)
{
length = (barDim.height * getChildrenArea().height)
/ getContent()->getHeight();
}
else
{
length = barDim.height;
}
if (length < mScrollbarWidth)
{
length = mScrollbarWidth;
}
if (length > barDim.height)
{
length = barDim.height;
}
if (getVerticalMaxScroll() != 0)
{
pos = ((barDim.height - length) * getVerticalScrollAmount())
/ getVerticalMaxScroll();
}
else
{
pos = 0;
}
return Rectangle(barDim.x, barDim.y + pos, mScrollbarWidth, length);
}
Rectangle ScrollArea::getHorizontalMarkerDimension()
{
if (!mHBarVisible)
{
return Rectangle(0, 0, 0, 0);
}
int length, pos;
Rectangle barDim = getHorizontalBarDimension();
if (getContent() && getContent()->getWidth() != 0)
{
length = (barDim.width * getChildrenArea().width)
/ getContent()->getWidth();
}
else
{
length = barDim.width;
}
if (length < mScrollbarWidth)
{
length = mScrollbarWidth;
}
if (length > barDim.width)
{
length = barDim.width;
}
if (getHorizontalMaxScroll() != 0)
{
pos = ((barDim.width - length) * getHorizontalScrollAmount())
/ getHorizontalMaxScroll();
}
else
{
pos = 0;
}
return Rectangle(barDim.x + pos, barDim.y, 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 NULL;
}
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.
*/
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