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);
}
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::mousePress(int x, int y, int button)
{
if (getUpButtonDimension().isPointInRect(x, y))
{
setVerticalScrollAmount(getVerticalScrollAmount() - 10);
mUpButtonPressed = true;
}
else if (getDownButtonDimension().isPointInRect(x, y))
{
setVerticalScrollAmount(getVerticalScrollAmount() + 10);
mDownButtonPressed = true;
}
else if (getLeftButtonDimension().isPointInRect(x, y))
{
setHorizontalScrollAmount(getHorizontalScrollAmount() - 10);
mLeftButtonPressed = true;
}
else if (getRightButtonDimension().isPointInRect(x, y))
{
setHorizontalScrollAmount(getHorizontalScrollAmount() + 10);
mRightButtonPressed = true;
}
else if (getVerticalMarkerDimension().isPointInRect(x, y))
{
mVerticalMarkerPressed = true;
mVerticalMarkerMousePosition = y - getVerticalMarkerDimension().y;
}
else if (getHorizontalMarkerDimension().isPointInRect(x, y))
{
mHorizontalMarkerPressed = true;
mHorizontalMarkerMousePosition = x - getHorizontalMarkerDimension().x;
}
}
void ScrollArea::drawButton(gcn::Graphics *graphics, BUTTON_DIR dir)
{
int state = 0;
gcn::Rectangle dim;
switch (dir)
{
case UP:
state = mUpButtonPressed ? 1 : 0;
dim = getUpButtonDimension();
break;
case DOWN:
state = mDownButtonPressed ? 1 : 0;
dim = getDownButtonDimension();
break;
case LEFT:
state = mLeftButtonPressed ? 1 : 0;
dim = getLeftButtonDimension();
break;
case RIGHT:
state = mRightButtonPressed ? 1 : 0;
dim = getRightButtonDimension();
break;
}
static_cast<Graphics*>(graphics)->
drawImage(buttons[dir][state], dim.x, dim.y);
}
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));
}
}
// Eat the mouse
mouseEvent.consume();
}