//protected
void MapGraphicsView::doTileLayout()
{
//Calculate the center point and polygon of the viewport in QGraphicsScene coordinates
const QPointF centerPointQGS = _childView->mapToScene(_childView->width()/2.0,
_childView->height()/2.0);
QPolygon viewportPolygonQGV;
viewportPolygonQGV << QPoint(0,0) << QPoint(0,_childView->height()) << QPoint(_childView->width(),_childView->height()) << QPoint(_childView->width(),0);
const QPolygonF viewportPolygonQGS = _childView->mapToScene(viewportPolygonQGV);
const QRectF boundingRect = viewportPolygonQGS.boundingRect();
//We exaggerate the bounding rect for some purposes!
QRectF exaggeratedBoundingRect = boundingRect;
exaggeratedBoundingRect.setSize(boundingRect.size()*2.0);
exaggeratedBoundingRect.moveCenter(boundingRect.center());
//We'll mark tiles that aren't being displayed as free so we can use them
QQueue<MapTileGraphicsObject *> freeTiles;
QSet<QPointF> placesWhereTilesAre;
foreach(MapTileGraphicsObject * tileObject, _tileObjects)
{
if (!tileObject->isVisible() || !exaggeratedBoundingRect.contains(tileObject->pos()))
{
freeTiles.enqueue(tileObject);
tileObject->setVisible(false);
}
else
placesWhereTilesAre.insert(tileObject->pos());
}
const quint16 tileSize = _tileSource->tileSize();
const quint32 tilesPerRow = sqrt((long double)_tileSource->tilesOnZoomLevel(this->zoomLevel()));
const quint32 tilesPerCol = tilesPerRow;
const qint32 perSide = qMax(boundingRect.width()/tileSize,
boundingRect.height()/tileSize) + 3;
const qint32 xc = qMax((qint32)0,
(qint32)(centerPointQGS.x() / tileSize) - perSide/2);
const qint32 yc = qMax((qint32)0,
(qint32)(centerPointQGS.y() / tileSize) - perSide/2);
const qint32 xMax = qMin((qint32)tilesPerRow,
xc + perSide);
const qint32 yMax = qMin(yc + perSide,
(qint32)tilesPerCol);
for (qint32 x = xc; x < xMax; x++)
{
for (qint32 y = yc; y < yMax; y++)
{
const QPointF scenePos(x*tileSize + tileSize/2,
y*tileSize + tileSize/2);
bool tileIsThere = false;
if (placesWhereTilesAre.contains(scenePos))
tileIsThere = true;
if (tileIsThere)
continue;
//Just in case we're running low on free tiles, add one
if (freeTiles.isEmpty())
{
MapTileGraphicsObject * tileObject = new MapTileGraphicsObject(tileSize);
tileObject->setTileSource(_tileSource);
_tileObjects.insert(tileObject);
_childScene->addItem(tileObject);
freeTiles.enqueue(tileObject);
}
//Get the first free tile and make it do its thing
MapTileGraphicsObject * tileObject = freeTiles.dequeue();
if (tileObject->pos() != scenePos)
tileObject->setPos(scenePos);
if (tileObject->isVisible() != true)
tileObject->setVisible(true);
tileObject->setTile(x,y,this->zoomLevel());
}
}
//If we've got a lot of free tiles left over, delete some of them
while (freeTiles.size() > 2)
{
MapTileGraphicsObject * tileObject = freeTiles.dequeue();
_tileObjects.remove(tileObject);
_childScene->removeItem(tileObject);
delete tileObject;
}
}
void ChessBoard::renderBoard( QPainter &p, const QRectF &rc, bool flip,
const std::vector<cheng4::Square> *excludeSquares )
{
qreal maxh = std::max( rc.width(), rc.height() )/14;
maxh = 18;
qreal bordersz = maxh;
if ( !border )
bordersz = 0;
qreal sw = (rc.width() - 2*bordersz) / 8;
qreal sh = (rc.height() - 2*bordersz) / 8;
sh = sw = std::min(sw, sh);
QColor wb[2] = { QColor(255, 255, 255, 255), QColor(0, 0, 0, 255) };
QColor bord = borderColor;
QBrush lightb(lightColor);
QBrush darkb(darkColor);
p.setPen(Qt::transparent);
// render border...
p.setBrush( QBrush(bord) );
p.drawRect(QRectF(rc.left(), rc.top(), 8*sw + 2*bordersz+1, 8*sh + 2*bordersz+1));
QPen bpen( QColor(0, 0, 0, 128) );
bpen.setWidth(1);
p.setPen( bpen );
p.setBrush( Qt::transparent );
QRectF brect;
brect.setTopLeft( QPoint(bordersz-1, bordersz-1) );
brect.setSize( QSizeF(8*sw+2, 8*sh+2) );
p.drawRect( brect );
brect.setTopLeft( QPoint(0, 0) );
brect.setSize( QSizeF(8*sw+2*bordersz, 8*sh+2*bordersz) );
p.drawRect( brect );
p.setPen( Qt::transparent );
for (cheng4::Square s = 0; s < 64; s++)
{
cheng4::File f = cheng4::SquarePack::file(s);
cheng4::Rank r = cheng4::SquarePack::rank(s);
QRectF sub(rc.left() + sw*f + bordersz, rc.top() + sh*r + bordersz, sw, sh);
cheng4::Square sq = flip ? cheng4::SquarePack::flipH(cheng4::SquarePack::flipV(s)) : s;
p.setBrush( ((f+r) & 1) ? darkb : lightb );
p.drawRect( sub );
if ( excludeSquares && std::find(excludeSquares->begin(), excludeSquares->end(), sq)
!= excludeSquares->end() )
continue;
cheng4::Piece pc = board.piece(sq);
cheng4::Piece pt = cheng4::PiecePack::type(pc);
if ( pt == cheng4::ptNone )
continue;
cheng4::Color c = cheng4::PiecePack::color(pc);
if ( !pieceSet || !pieceSet->pieces[c][pt-1] )
continue;
pieceSet->pieces[c][pt-1]->renderer()->render(&p, sub);
}
// FIXME: better!!!
for (cheng4::Square s = 0; s < 64; s++)
{
cheng4::File f = cheng4::SquarePack::file(s);
cheng4::Rank r = cheng4::SquarePack::rank(s);
QRectF sub(rc.left() + sw*f + bordersz, rc.top() + sh*r + bordersz, sw, sh);
cheng4::Square sq = flip ? cheng4::SquarePack::flipH(cheng4::SquarePack::flipV(s)) : s;
// now highlight!!!
if ( highlight == cheng4::mcNone || highlight == cheng4::mcNull )
continue;
cheng4::Square from, to;
from = cheng4::MovePack::from(highlight);
to = cheng4::MovePack::to(highlight);
if ( sq != from && sq != to )
continue;
QPen hpen( highlightColor );
hpen.setWidth(2);
p.setPen( hpen );
p.setBrush( Qt::transparent );
p.drawRect( sub );
p.setPen( Qt::transparent );
}
if ( !border )
return;
// draw board letters
p.setPen( letterColor );
QTextOption opt;
opt.setAlignment(Qt::AlignCenter);
QFont font;
font.setBold(0);
font.setPixelSize(12);
p.setFont(font);
for (uint i=0; i<8; i++)
{
// rows:
QPointF pt( 0, bordersz + sh*i );
QRectF rct;
rct.setTopLeft( pt );
rct.setSize( QSizeF( bordersz, sh ) );
QString text;
int irow = 7-(int)i;
if ( flip )
irow = 8-1-irow;
text.sprintf("%d", irow+1);
p.drawText(rct, text, opt);
pt.setX( bordersz+sw*8 );
rct.setTopLeft( pt );
rct.setSize( QSizeF( bordersz, sh ) );
p.drawText(rct, text, opt);
// cols:
int icol = (int)i;
if ( flip )
icol = 8-1-i;
text.sprintf("%c", 'a' + icol);
pt.setX( bordersz + sw*i );
pt.setY( 0 );
rct.setTopLeft(pt);
rct.setSize( QSizeF( sw, bordersz ) );
p.drawText(rct, text, opt);
pt.setY( bordersz+sh*8 );
rct.setTopLeft( pt );
rct.setSize( QSizeF( sw, bordersz ) );
p.drawText(rct, text, opt);
}
// draw stm
QRectF upr;
upr.setTopLeft( QPointF( bordersz + sw*8 + bordersz/8, bordersz/8 ) );
upr.setSize( QSizeF( bordersz - 2*bordersz/8, bordersz - 2*bordersz/8 ) );
bool upper = board.turn() == (flip ? cheng4::ctWhite : cheng4::ctBlack);
p.setPen( wb[ cheng4::flip(board.turn()) ] );
p.setBrush( wb[ board.turn() ] );
if ( upper )
p.drawRect( upr );
QRectF lwr;
lwr.setTopLeft( QPointF( bordersz + sw*8 + bordersz/8, bordersz + sh*8 + bordersz/8 ) );
lwr.setSize( QSizeF( bordersz - 2*bordersz/8, bordersz - 2*bordersz/8 ) );
if ( !upper )
p.drawRect( lwr );
}
void paintEvent(QPaintEvent *event)
{
Q_UNUSED (event)
// XXX Maybe we should cache this and recompute separately for
// transform changes, shape movement and viewport changes?
// Draw a white background.
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing);
painter.setPen(Qt::white);
painter.setBrush(Qt::white);
QRectF drawingRect = QRectF(0, 0, width(), height());
painter.drawRect(drawingRect);
if (m_canvasview == NULL)
{
return;
}
// Compute the diagram bounds.
Canvas *canvas = m_canvasview->canvas();
QRectF diagramBounds = diagramBoundingRect(canvas->items());
double buffer = 50;
diagramBounds.adjust(-buffer, -buffer, buffer, buffer);
// Compute the scale to with the drawing into the overview rect.
qreal xscale = drawingRect.width() / diagramBounds.width();
qreal yscale = drawingRect.height() / diagramBounds.height();
// Choose the smallest of the two scale values.
qreal scale = std::min(xscale, yscale);
// Scale uniformly, and transform to center in the overview.
QTransform scaleTransform = QTransform::fromScale(scale, scale);
QRectF targetRect = scaleTransform.mapRect(diagramBounds);
QPointF diff = drawingRect.center() - targetRect.center();
m_transform = QTransform();
m_transform.translate(diff.x(), diff.y());
m_transform.scale(scale, scale);
// Draw edges in overview for each connector on the canvas.
painter.setPen(QColor(0, 0, 0, 100));
QList<CanvasItem *> items = canvas->items();
for (int i = 0; i < items.count(); ++i)
{
Connector *connector = dynamic_cast<Connector *> (items.at(i));
if (connector)
{
QPair<ShapeObj *, ShapeObj *> endShapes =
connector->getAttachedShapes();
if (!endShapes.first || !endShapes.second)
{
continue;
}
QLineF line(endShapes.first->centrePos(),
endShapes.second->centrePos());
painter.drawLine(m_transform.map(line));
}
}
// Draw Rectangles in overview for each shape on the canvas.
painter.setPen(Qt::black);
painter.setBrush(Qt::darkGray);
QRectF shapeRect;
for (int i = 0; i < items.count(); ++i)
{
ShapeObj *shape = dynamic_cast<ShapeObj *> (items.at(i));
if (shape)
{
shapeRect.setSize(shape->size());
shapeRect.moveCenter(shape->centrePos());
painter.drawRect(m_transform.mapRect(shapeRect));
}
}
// Show where the visible viewport is (by making everything
// outside this have a light grey overlay).
QColor grey(0, 0, 0, 60);
painter.setPen(QPen(Qt::transparent));
painter.setBrush(QBrush(grey));
QRectF viewRect = m_transform.mapRect(m_canvasview->viewportRect());
QPolygon polygon = QPolygon(drawingRect.toRect()).subtracted(
QPolygon(viewRect.toRect()));
painter.drawPolygon(polygon);
}
void QQuickTextNodeEngine::processCurrentLine()
{
// No glyphs, do nothing
if (m_currentLineTree.isEmpty())
return;
// 1. Go through current line and get correct decoration position for each node based on
// neighbouring decorations. Add decoration to global list
// 2. Create clip nodes for all selected text. Try to merge as many as possible within
// the line.
// 3. Add QRects to a list of selection rects.
// 4. Add all nodes to a global processed list
QVarLengthArray<int> sortedIndexes; // Indexes in tree sorted by x position
BinaryTreeNode::inOrder(m_currentLineTree, &sortedIndexes);
Q_ASSERT(sortedIndexes.size() == m_currentLineTree.size());
SelectionState currentSelectionState = Unselected;
QRectF currentRect;
QQuickTextNode::Decorations currentDecorations = QQuickTextNode::NoDecoration;
qreal underlineOffset = 0.0;
qreal underlineThickness = 0.0;
qreal overlineOffset = 0.0;
qreal overlineThickness = 0.0;
qreal strikeOutOffset = 0.0;
qreal strikeOutThickness = 0.0;
QRectF decorationRect = currentRect;
QColor lastColor;
QColor lastBackgroundColor;
QVarLengthArray<TextDecoration> pendingUnderlines;
QVarLengthArray<TextDecoration> pendingOverlines;
QVarLengthArray<TextDecoration> pendingStrikeOuts;
if (!sortedIndexes.isEmpty()) {
QQuickDefaultClipNode *currentClipNode = m_hasSelection ? new QQuickDefaultClipNode(QRectF()) : 0;
bool currentClipNodeUsed = false;
for (int i=0; i<=sortedIndexes.size(); ++i) {
BinaryTreeNode *node = 0;
if (i < sortedIndexes.size()) {
int sortedIndex = sortedIndexes.at(i);
Q_ASSERT(sortedIndex < m_currentLineTree.size());
node = m_currentLineTree.data() + sortedIndex;
}
if (i == 0)
currentSelectionState = node->selectionState;
// Update decorations
if (currentDecorations != QQuickTextNode::NoDecoration) {
decorationRect.setY(m_position.y() + m_currentLine.y());
decorationRect.setHeight(m_currentLine.height());
if (node != 0)
decorationRect.setRight(node->boundingRect.left());
TextDecoration textDecoration(currentSelectionState, decorationRect, lastColor);
if (currentDecorations & QQuickTextNode::Underline)
pendingUnderlines.append(textDecoration);
if (currentDecorations & QQuickTextNode::Overline)
pendingOverlines.append(textDecoration);
if (currentDecorations & QQuickTextNode::StrikeOut)
pendingStrikeOuts.append(textDecoration);
if (currentDecorations & QQuickTextNode::Background)
m_backgrounds.append(qMakePair(decorationRect, lastBackgroundColor));
}
// If we've reached an unselected node from a selected node, we add the
// selection rect to the graph, and we add decoration every time the
// selection state changes, because that means the text color changes
if (node == 0 || node->selectionState != currentSelectionState) {
if (node != 0)
currentRect.setRight(node->boundingRect.left());
currentRect.setY(m_position.y() + m_currentLine.y());
currentRect.setHeight(m_currentLine.height());
// Draw selection all the way up to the left edge of the unselected item
if (currentSelectionState == Selected)
m_selectionRects.append(currentRect);
if (currentClipNode != 0) {
if (!currentClipNodeUsed) {
delete currentClipNode;
} else {
currentClipNode->setIsRectangular(true);
currentClipNode->setRect(currentRect);
currentClipNode->update();
}
}
if (node != 0 && m_hasSelection)
currentClipNode = new QQuickDefaultClipNode(QRectF());
else
currentClipNode = 0;
currentClipNodeUsed = false;
if (node != 0) {
currentSelectionState = node->selectionState;
currentRect = node->boundingRect;
// Make sure currentRect is valid, otherwise the unite won't work
if (currentRect.isNull())
currentRect.setSize(QSizeF(1, 1));
}
} else {
if (currentRect.isNull())
currentRect = node->boundingRect;
else
currentRect = currentRect.united(node->boundingRect);
}
if (node != 0) {
node->clipNode = currentClipNode;
currentClipNodeUsed = true;
decorationRect = node->boundingRect;
// If previous item(s) had underline and current does not, then we add the
// pending lines to the lists and likewise for overlines and strikeouts
if (!pendingUnderlines.isEmpty()
&& !(node->decorations & QQuickTextNode::Underline)) {
addTextDecorations(pendingUnderlines, underlineOffset, underlineThickness);
pendingUnderlines.clear();
underlineOffset = 0.0;
underlineThickness = 0.0;
}
// ### Add pending when overlineOffset/thickness changes to minimize number of
// nodes
if (!pendingOverlines.isEmpty()) {
addTextDecorations(pendingOverlines, overlineOffset, overlineThickness);
pendingOverlines.clear();
overlineOffset = 0.0;
overlineThickness = 0.0;
}
// ### Add pending when overlineOffset/thickness changes to minimize number of
// nodes
if (!pendingStrikeOuts.isEmpty()) {
addTextDecorations(pendingStrikeOuts, strikeOutOffset, strikeOutThickness);
pendingStrikeOuts.clear();
strikeOutOffset = 0.0;
strikeOutThickness = 0.0;
}
// Merge current values with previous. Prefer greatest thickness
QRawFont rawFont = node->glyphRun.rawFont();
if (node->decorations & QQuickTextNode::Underline) {
if (rawFont.lineThickness() > underlineThickness) {
underlineThickness = rawFont.lineThickness();
underlineOffset = rawFont.underlinePosition();
}
}
if (node->decorations & QQuickTextNode::Overline) {
overlineOffset = -rawFont.ascent();
overlineThickness = rawFont.lineThickness();
}
if (node->decorations & QQuickTextNode::StrikeOut) {
strikeOutThickness = rawFont.lineThickness();
strikeOutOffset = rawFont.ascent() / -3.0;
}
currentDecorations = node->decorations;
lastColor = node->color;
lastBackgroundColor = node->backgroundColor;
m_processedNodes.append(*node);
}
}
if (!pendingUnderlines.isEmpty())
addTextDecorations(pendingUnderlines, underlineOffset, underlineThickness);
if (!pendingOverlines.isEmpty())
addTextDecorations(pendingOverlines, overlineOffset, overlineThickness);
if (!pendingStrikeOuts.isEmpty())
addTextDecorations(pendingStrikeOuts, strikeOutOffset, strikeOutThickness);
}
m_currentLineTree.clear();
m_currentLine = QTextLine();
m_hasSelection = false;
}