/*************************************************************************
Initialise the Window based object ready for use.
*************************************************************************/
void ComboDropList::initialiseComponents(void)
{
Listbox::initialiseComponents();
// set-up scroll bars so they return capture to us.
getVertScrollbar()->setRestoreOldCapture(true);
getHorzScrollbar()->setRestoreOldCapture(true);
// ban these properties from being written
getVertScrollbar()->banPropertyFromXML("RestoreOldCapture");
getHorzScrollbar()->banPropertyFromXML("RestoreOldCapture");
}
/*************************************************************************
Initialise the Window based object ready for use.
*************************************************************************/
void ComboDropList::initialiseComponents(void)
{
ListWidget::initialiseComponents();
// set-up scroll bars so they return capture to us.
getVertScrollbar()->setRestoreOldCapture(true);
getHorzScrollbar()->setRestoreOldCapture(true);
// ban these properties from being written
getVertScrollbar()->banPropertyFromXMLRecursive(Window::RestoreOldCapturePropertyName);
getHorzScrollbar()->banPropertyFromXMLRecursive(Window::RestoreOldCapturePropertyName);
}
//----------------------------------------------------------------------------//
bool ScrollablePane::handleContentAreaChange(const EventArgs&)
{
// get updated extents of the content
const Rectf contentArea(getScrolledContainer()->getContentArea());
// calculate any change on the top and left edges.
const float xChange = contentArea.d_min.d_x - d_contentRect.d_min.d_x;
const float yChange = contentArea.d_min.d_y - d_contentRect.d_min.d_y;
// store new content extents information
d_contentRect = contentArea;
configureScrollbars();
// update scrollbar positions (which causes container pane to be moved as needed).
Scrollbar* const horzScrollbar = getHorzScrollbar();
horzScrollbar->setScrollPosition(horzScrollbar->getScrollPosition() - xChange);
Scrollbar* const vertScrollbar = getVertScrollbar();
vertScrollbar->setScrollPosition(vertScrollbar->getScrollPosition() - yChange);
// this call may already have been made if the scroll positions changed. The call
// is required here for cases where the top/left 'bias' has changed; in which
// case the scroll position notification may or may not have been fired.
if (xChange || yChange)
updateContainerPosition();
// fire event
WindowEventArgs args(this);
onContentPaneChanged(args);
return true;
}
/*************************************************************************
Initialise the Window based object ready for use.
*************************************************************************/
void ComboDropList::initialiseComponents(void)
{
Listbox::initialiseComponents();
// set-up scroll bars so they return capture to us.
getVertScrollbar()->setRestoreCapture(true);
getHorzScrollbar()->setRestoreCapture(true);
}
/************************************************************************
Configure scroll bars
************************************************************************/
void ScrolledItemListBase::configureScrollbars(const Size& doc_size)
{
Scrollbar* v = getVertScrollbar();
Scrollbar* h = getHorzScrollbar();
Size render_area_size = getItemRenderArea().getSize();
// setup the pane size
float pane_size_w = ceguimax(doc_size.d_width, render_area_size.d_width);
UVector2 pane_size(cegui_absdim(pane_size_w), cegui_absdim(doc_size.d_height));
d_pane->setMinSize(pane_size);
d_pane->setMaxSize(pane_size);
//d_pane->setWindowSize(pane_size);
// "fix" scrollbar visibility
if (d_forceVScroll || doc_size.d_height > render_area_size.d_height)
{
v->show();
}
else
{
v->hide();
}
//render_area_size = getItemRenderArea().getSize();
if (d_forceHScroll || doc_size.d_width > render_area_size.d_width)
{
h->show();
}
else
{
h->hide();
}
// get a fresh item render area
Rect render_area = getItemRenderArea();
render_area_size = render_area.getSize();
// update the pane clipper area
static_cast<ClippedContainer*>(d_pane)->setClipArea(render_area);
// setup vertical scrollbar
v->setDocumentSize(doc_size.d_height);
v->setPageSize(render_area_size.d_height);
v->setStepSize(ceguimax(1.0f, render_area_size.d_height / 10.0f));
v->setScrollPosition(v->getScrollPosition());
// setup horizontal scrollbar
h->setDocumentSize(doc_size.d_width);
h->setPageSize(render_area_size.d_width);
h->setStepSize(ceguimax(1.0f, render_area_size.d_width / 10.0f));
h->setScrollPosition(h->getScrollPosition());
}
/*************************************************************************
Initialise the Window based object ready for use.
*************************************************************************/
void Listbox::initialiseComponents(void)
{
// get the component sub-widgets
Scrollbar* vertScrollbar = getVertScrollbar();
Scrollbar* horzScrollbar = getHorzScrollbar();
vertScrollbar->subscribeEvent(Scrollbar::EventScrollPositionChanged, Event::Subscriber(&Listbox::handle_scrollChange, this));
horzScrollbar->subscribeEvent(Scrollbar::EventScrollPositionChanged, Event::Subscriber(&Listbox::handle_scrollChange, this));
configureScrollbars();
performChildWindowLayout();
}
//----------------------------------------------------------------------------//
void ScrollablePane::updateContainerPosition(void)
{
// basePos is the position represented by the scrollbars
// (these are negated so pane is scrolled in the correct directions)
UVector2 basePos(cegui_absdim(-getHorzScrollbar()->getScrollPosition()),
cegui_absdim(-getVertScrollbar()->getScrollPosition()));
// this bias is the absolute position that 0 on the scrollbars represent.
// Allows the pane to function correctly with negatively positioned content.
UVector2 bias(cegui_absdim(d_contentRect.d_min.d_x),
cegui_absdim(d_contentRect.d_min.d_y));
// set the new container pane position to be what the scrollbars request
// minus any bias generated by the location of the content.
getScrolledContainer()->setPosition(basePos - bias);
}
//----------------------------------------------------------------------------//
void ScrolledItemListBase::ensureItemIsVisibleHorz(const ItemEntry& item)
{
const Rect render_area = getItemRenderArea();
Scrollbar* const h = getHorzScrollbar();
const float currPos = h->getScrollPosition();
const float left =
item.getXPosition().asAbsolute(this->getPixelSize().d_width) - currPos;
const float right = left + item.getItemPixelSize().d_width;
// if left is left of the view area, or if item too big, scroll item to left
if ((left < render_area.d_left) || ((right - left) > render_area.getWidth()))
h->setScrollPosition(currPos + left);
// if right is right of the view area, scroll item to right of list
else if (right >= render_area.d_right)
h->setScrollPosition(currPos + right - render_area.getWidth());
}
/************************************************************************
Initialise
************************************************************************/
void ScrolledItemListBase::initialiseComponents()
{
// Only process the content pane if it hasn't been done in the past
// NOTE: This ensures that a duplicate content pane is not created. An example where
// this would be possible would be when changing the Look'N'Feel of the widget
// (for instance an ItemListBox), an operation which would reconstruct the child components
// of the widget by destroying the previous ones and creating new ones with the
// new Look'N'Feel. However, since the content pane is not defined in the
// look and feel file and thus not associated with the look'N'Feel itself
// but instead created here manually, the destruction would not contemplate the content
// pane itself, so when the children would be rebuilt, a duplicate content pane
// would be attempted (and an exception would be issued).
if(!d_pane)
{
// IMPORTANT:
// we must do this before the base class handling or we'll lose the onChildRemoved subscriber!!!
d_pane = WindowManager::getSingletonPtr()->createWindow("ClippedContainer", d_name+ContentPaneNameSuffix);
// set up clipping
static_cast<ClippedContainer*>(d_pane)->setClipperWindow(this);
addChildWindow(d_pane);
}
// base class handling
ItemListBase::initialiseComponents();
// set default pane position
Rect r = getItemRenderArea();
d_pane->setPosition(UVector2(cegui_absdim(r.d_left),cegui_absdim(r.d_top)));
// init scrollbars
Scrollbar* v = getVertScrollbar();
Scrollbar* h = getHorzScrollbar();
v->setAlwaysOnTop(true);
h->setAlwaysOnTop(true);
v->subscribeEvent(Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrolledItemListBase::handle_VScroll,this));
h->subscribeEvent(Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrolledItemListBase::handle_HScroll,this));
v->hide();
h->hide();
}
//----------------------------------------------------------------------------//
void ScrollablePane::configureScrollbars(void)
{
// controls should all be valid by this stage
Scrollbar* const vertScrollbar = getVertScrollbar();
Scrollbar* const horzScrollbar = getHorzScrollbar();
const bool horzScrollBarWasVisible = horzScrollbar->isVisible();
const bool vertScrollBarWasVisible = vertScrollbar->isVisible();
// enable required scrollbars
vertScrollbar->setVisible(isVertScrollbarNeeded());
horzScrollbar->setVisible(isHorzScrollbarNeeded());
// Check if the addition of the horizontal scrollbar means we
// now also need the vertical bar.
if (horzScrollbar->isVisible())
vertScrollbar->setVisible(isVertScrollbarNeeded());
if (horzScrollBarWasVisible != horzScrollbar->isVisible() ||
vertScrollBarWasVisible != vertScrollbar->isVisible())
{
ElementEventArgs args(this);
onSized(args);
}
performChildWindowLayout();
// get viewable area
const Rectf viewableArea(getViewableArea());
// set up vertical scroll bar values
vertScrollbar->setDocumentSize(fabsf(d_contentRect.getHeight()));
vertScrollbar->setPageSize(viewableArea.getHeight());
vertScrollbar->setStepSize(ceguimax(1.0f, viewableArea.getHeight() * d_vertStep));
vertScrollbar->setOverlapSize(ceguimax(1.0f, viewableArea.getHeight() * d_vertOverlap));
vertScrollbar->setScrollPosition(vertScrollbar->getScrollPosition());
// set up horizontal scroll bar values
horzScrollbar->setDocumentSize(fabsf(d_contentRect.getWidth()));
horzScrollbar->setPageSize(viewableArea.getWidth());
horzScrollbar->setStepSize(ceguimax(1.0f, viewableArea.getWidth() * d_horzStep));
horzScrollbar->setOverlapSize(ceguimax(1.0f, viewableArea.getWidth() * d_horzOverlap));
horzScrollbar->setScrollPosition(horzScrollbar->getScrollPosition());
}
/*************************************************************************
Handler for mouse wheel changes
*************************************************************************/
void Listbox::onMouseWheel(MouseEventArgs& e)
{
// base class processing.
Window::onMouseWheel(e);
Scrollbar* vertScrollbar = getVertScrollbar();
Scrollbar* horzScrollbar = getHorzScrollbar();
if (vertScrollbar->isVisible() && (vertScrollbar->getDocumentSize() > vertScrollbar->getPageSize()))
{
vertScrollbar->setScrollPosition(vertScrollbar->getScrollPosition() + vertScrollbar->getStepSize() * -e.wheelChange);
}
else if (horzScrollbar->isVisible() && (horzScrollbar->getDocumentSize() > horzScrollbar->getPageSize()))
{
horzScrollbar->setScrollPosition(horzScrollbar->getScrollPosition() + horzScrollbar->getStepSize() * -e.wheelChange);
}
++e.handled;
}
//----------------------------------------------------------------------------//
void ScrollablePane::initialiseComponents(void)
{
// get horizontal scrollbar
Scrollbar* horzScrollbar = getHorzScrollbar();
// get vertical scrollbar
Scrollbar* vertScrollbar = getVertScrollbar();
// get scrolled container widget
ScrolledContainer* container = getScrolledContainer();
// do a bit of initialisation
horzScrollbar->setAlwaysOnTop(true);
vertScrollbar->setAlwaysOnTop(true);
// container pane is always same size as this parent pane,
// scrolling is actually implemented via positioning and clipping tricks.
container->setSize(USize(cegui_reldim(1.0f), cegui_reldim(1.0f)));
// subscribe to events we need to hear about
vertScrollbar->subscribeEvent(
Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrollablePane::handleScrollChange, this));
horzScrollbar->subscribeEvent(
Scrollbar::EventScrollPositionChanged,
Event::Subscriber(&ScrollablePane::handleScrollChange, this));
d_contentChangedConn = container->subscribeEvent(
ScrolledContainer::EventContentChanged,
Event::Subscriber(&ScrollablePane::handleContentAreaChange, this));
d_autoSizeChangedConn = container->subscribeEvent(
ScrolledContainer::EventAutoSizeSettingChanged,
Event::Subscriber(&ScrollablePane::handleAutoSizePaneChanged, this));
// finalise setup
configureScrollbars();
}
//----------------------------------------------------------------------------//
ModelIndex TreeView::indexAtRecursive(TreeViewItemRenderingState& item,
float& cur_height, const glm::vec2& window_position, bool& handled,
TreeViewItemAction action)
{
float next_height = cur_height + item.d_size.d_height;
if (window_position.y >= cur_height &&
window_position.y <= next_height)
{
handled = true;
float expander_width = getViewRenderer()->getSubtreeExpanderSize().d_width;
float base_x = getViewRenderer()->getSubtreeExpanderXIndent(item.d_nestedLevel);
base_x -= getHorzScrollbar()->getScrollPosition();
if (window_position.x >= base_x &&
window_position.x <= base_x + expander_width)
{
(this->*action)(item, true);
return ModelIndex();
}
(this->*action)(item, false);
return ModelIndex(d_itemModel->makeIndex(item.d_childId, item.d_parentIndex));
}
cur_height = next_height;
for (size_t i = 0; i < item.d_renderedChildren.size(); ++i)
{
ModelIndex index = indexAtRecursive(*item.d_renderedChildren.at(i),
cur_height, window_position, handled, action);
if (handled)
return index;
}
return ModelIndex();
}
void CPFRotatingText::renderRotatingText()
{
Font* font = d_window->getFont();
// can't render text without a font :)
if( font==NULL){
return;
}
// get destination area for the text.
Rect absarea(getTextRenderArea());
Rect clipper(absarea);
float textHeight = font->getFormattedLineCount(d_window->getText(), absarea, (TextFormatting)d_horzFormatting) * font->getLineSpacing();
Scrollbar* vertScrollbar = getVertScrollbar();
Scrollbar* horzScrollbar = getHorzScrollbar();
// calculate X offset
static float xOffset = horzScrollbar->getPageSize();
if( xOffset<-(horzScrollbar->getDocumentSize()+horzScrollbar->getPageSize()) ){
xOffset = horzScrollbar->getPageSize();
}
static boost::system_time previous_time = boost::get_system_time();
boost::system_time time = boost::get_system_time();
boost::system_time::time_duration_type time_step = (time-previous_time);
xOffset -= (static_cast<float>(time_step.total_milliseconds())*d_textSpeed);
previous_time = time;
absarea.offset(Point(xOffset, 0));
// see if we may need to adjust horizontal position
if( horzScrollbar->isVisible() ){
switch(d_horzFormatting)
{
case LeftAligned:
case WordWrapLeftAligned:
case Justified:
case WordWrapJustified:
absarea.offset(Point(-horzScrollbar->getScrollPosition(), 0));
break;
case Centred:
case WordWrapCentred:
absarea.setWidth(horzScrollbar->getDocumentSize());
absarea.offset(Point(-horzScrollbar->getScrollPosition(), 0));
break;
case RightAligned:
case WordWrapRightAligned:
absarea.offset(Point(horzScrollbar->getScrollPosition(), 0));
break;
}
}
// adjust y positioning according to formatting option
switch(d_vertFormatting)
{
case TopAligned:
absarea.d_top -= vertScrollbar->getScrollPosition();
break;
case VertCentred:
// if scroll bar is in use, act like TopAligned
if( vertScrollbar->isVisible() ){
absarea.d_top -= vertScrollbar->getScrollPosition();
}
// no scroll bar, so centre text instead.
else{
absarea.d_top += PixelAligned((absarea.getHeight() - textHeight) * 0.5f);
}
break;
case BottomAligned:
absarea.d_top = absarea.d_bottom - textHeight;
absarea.d_top += vertScrollbar->getScrollPosition();
break;
}
// offset the font little down so that it's centered within its own spacing
absarea.d_top += (font->getLineSpacing() - font->getFontHeight()) * 0.5f;
// calculate final colours
ColourRect final_cols(d_textCols);
final_cols.modulateAlpha(d_window->getEffectiveAlpha());
// cache the text for rendering.
d_window->getRenderCache().cacheText(d_window->getText(), font, (TextFormatting)d_horzFormatting, absarea, 0, final_cols, &clipper);
}
/*************************************************************************
display required integrated scroll bars according to current state
of the list box and update their values.
*************************************************************************/
void Listbox::configureScrollbars(void)
{
Scrollbar* vertScrollbar = getVertScrollbar();
Scrollbar* horzScrollbar = getHorzScrollbar();
float totalHeight = getTotalItemsHeight();
float widestItem = getWidestItemWidth();
//
// First show or hide the scroll bars as needed (or requested)
//
// show or hide vertical scroll bar as required (or as specified by option)
if ((totalHeight > getListRenderArea().getHeight()) || d_forceVertScroll)
{
vertScrollbar->show();
// show or hide horizontal scroll bar as required (or as specified by option)
if ((widestItem > getListRenderArea().getWidth()) || d_forceHorzScroll)
{
horzScrollbar->show();
}
else
{
horzScrollbar->hide();
}
}
else
{
// show or hide horizontal scroll bar as required (or as specified by option)
if ((widestItem > getListRenderArea().getWidth()) || d_forceHorzScroll)
{
horzScrollbar->show();
// show or hide vertical scroll bar as required (or as specified by option)
if ((totalHeight > getListRenderArea().getHeight()) || d_forceVertScroll)
{
vertScrollbar->show();
}
else
{
vertScrollbar->hide();
}
}
else
{
vertScrollbar->hide();
horzScrollbar->hide();
}
}
//
// Set up scroll bar values
//
Rect renderArea(getListRenderArea());
vertScrollbar->setDocumentSize(totalHeight);
vertScrollbar->setPageSize(renderArea.getHeight());
vertScrollbar->setStepSize(ceguimax(1.0f, renderArea.getHeight() / 10.0f));
vertScrollbar->setScrollPosition(vertScrollbar->getScrollPosition());
horzScrollbar->setDocumentSize(widestItem);
horzScrollbar->setPageSize(renderArea.getWidth());
horzScrollbar->setStepSize(ceguimax(1.0f, renderArea.getWidth() / 10.0f));
horzScrollbar->setScrollPosition(horzScrollbar->getScrollPosition());
}
//----------------------------------------------------------------------------//
float ScrollablePane::getHorizontalScrollPosition(void) const
{
Scrollbar* horzScrollbar = getHorzScrollbar();
float docSz = horzScrollbar->getDocumentSize();
return (docSz != 0) ? horzScrollbar->getScrollPosition() / docSz : 0.0f;
}
//----------------------------------------------------------------------------//
void ScrollablePane::setHorizontalScrollPosition(float position)
{
Scrollbar* horzScrollbar = getHorzScrollbar();
horzScrollbar->setScrollPosition(
horzScrollbar->getDocumentSize() * position);
}
//----------------------------------------------------------------------------//
float ScrollablePane::getHorizontalScrollPosition(void) const
{
return getHorzScrollbar()->getUnitIntervalScrollPosition();
}
//----------------------------------------------------------------------------//
void ScrollablePane::setHorizontalScrollPosition(float position)
{
getHorzScrollbar()->setUnitIntervalScrollPosition(position);
}
