void ToolLoopManager::calculateDirtyArea(ToolLoop* loop, const Points& points, Region& dirty_area)
{
dirty_area.clear();
if (points.size() > 0) {
Point minpt, maxpt;
calculateMinMax(points, minpt, maxpt);
// Expand the dirty-area with the pen width
Rect r1, r2;
loop->getPointShape()->getModifiedArea(loop, minpt.x, minpt.y, r1);
loop->getPointShape()->getModifiedArea(loop, maxpt.x, maxpt.y, r2);
dirty_area.createUnion(dirty_area, Region(r1.createUnion(r2)));
}
// Apply offset mode
Point offset(loop->getOffset());
dirty_area.offset(-offset);
// Apply tiled mode
TiledMode tiledMode = loop->getDocumentSettings()->getTiledMode();
if (tiledMode != TILED_NONE) {
int w = loop->sprite()->width();
int h = loop->sprite()->height();
Region sprite_area(Rect(0, 0, w, h));
Region outside;
outside.createSubtraction(dirty_area, sprite_area);
switch (tiledMode) {
case TILED_X_AXIS:
outside.createIntersection(outside, Region(Rect(-w*10000, 0, w*20000, h)));
break;
case TILED_Y_AXIS:
outside.createIntersection(outside, Region(Rect(0, -h*10000, w, h*20000)));
break;
}
Rect outsideBounds = outside.getBounds();
if (outsideBounds.x < 0) outside.offset(w * (1+((-outsideBounds.x) / w)), 0);
if (outsideBounds.y < 0) outside.offset(0, h * (1+((-outsideBounds.y) / h)));
int x1 = outside.getBounds().x;
while (true) {
Region in_sprite;
in_sprite.createIntersection(outside, sprite_area);
outside.createSubtraction(outside, in_sprite);
dirty_area.createUnion(dirty_area, in_sprite);
outsideBounds = outside.getBounds();
if (outsideBounds.isEmpty())
break;
else if (outsideBounds.x+outsideBounds.w > w)
outside.offset(-w, 0);
else if (outsideBounds.y+outsideBounds.h > h)
outside.offset(x1-outsideBounds.x, -h);
else
break;
}
}
}
void ToolLoopManager::calculateDirtyArea(const Points& points)
{
// Save the current dirty area if it's needed
Region prevDirtyArea;
if (m_toolLoop->getTracePolicy() == TracePolicy::Last)
prevDirtyArea = m_dirtyArea;
// Start with a fresh dirty area
m_dirtyArea.clear();
if (points.size() > 0) {
Point minpt, maxpt;
calculateMinMax(points, minpt, maxpt);
// Expand the dirty-area with the pen width
Rect r1, r2;
m_toolLoop->getPointShape()->getModifiedArea(m_toolLoop, minpt.x, minpt.y, r1);
m_toolLoop->getPointShape()->getModifiedArea(m_toolLoop, maxpt.x, maxpt.y, r2);
m_dirtyArea.createUnion(m_dirtyArea, Region(r1.createUnion(r2)));
}
// Apply offset mode
Point offset(m_toolLoop->getOffset());
m_dirtyArea.offset(-offset);
// Merge new dirty area with the previous one (for tools like line
// or rectangle it's needed to redraw the previous position and
// the new one)
if (m_toolLoop->getTracePolicy() == TracePolicy::Last)
m_dirtyArea.createUnion(m_dirtyArea, prevDirtyArea);
// Apply tiled mode
TiledMode tiledMode = m_toolLoop->getTiledMode();
if (tiledMode != TiledMode::NONE) {
int w = m_toolLoop->sprite()->width();
int h = m_toolLoop->sprite()->height();
Region sprite_area(Rect(0, 0, w, h));
Region outside;
outside.createSubtraction(m_dirtyArea, sprite_area);
switch (tiledMode) {
case TiledMode::X_AXIS:
outside.createIntersection(outside, Region(Rect(-w*10000, 0, w*20000, h)));
break;
case TiledMode::Y_AXIS:
outside.createIntersection(outside, Region(Rect(0, -h*10000, w, h*20000)));
break;
}
Rect outsideBounds = outside.bounds();
if (outsideBounds.x < 0) outside.offset(w * (1+((-outsideBounds.x) / w)), 0);
if (outsideBounds.y < 0) outside.offset(0, h * (1+((-outsideBounds.y) / h)));
int x1 = outside.bounds().x;
while (true) {
Region in_sprite;
in_sprite.createIntersection(outside, sprite_area);
outside.createSubtraction(outside, in_sprite);
m_dirtyArea.createUnion(m_dirtyArea, in_sprite);
outsideBounds = outside.bounds();
if (outsideBounds.isEmpty())
break;
else if (outsideBounds.x+outsideBounds.w > w)
outside.offset(-w, 0);
else if (outsideBounds.y+outsideBounds.h > h)
outside.offset(x1-outsideBounds.x, -h);
else
break;
}
}
}
// Strokes are relative to sprite origin.
void ToolLoopManager::calculateDirtyArea(const Strokes& strokes)
{
// Save the current dirty area if it's needed
Region prevDirtyArea;
if (m_toolLoop->getTracePolicy() == TracePolicy::Last)
prevDirtyArea = m_dirtyArea;
// Start with a fresh dirty area
m_dirtyArea.clear();
const Point celOrigin = m_toolLoop->getCelOrigin();
for (auto& stroke : strokes) {
gfx::Rect strokeBounds = stroke.bounds();
if (strokeBounds.isEmpty())
continue;
// Expand the dirty-area with the pen width
Rect r1, r2;
m_toolLoop->getPointShape()->getModifiedArea(
m_toolLoop,
strokeBounds.x - celOrigin.x,
strokeBounds.y - celOrigin.y, r1);
m_toolLoop->getPointShape()->getModifiedArea(
m_toolLoop,
strokeBounds.x+strokeBounds.w-1 - celOrigin.x,
strokeBounds.y+strokeBounds.h-1 - celOrigin.y, r2);
m_dirtyArea.createUnion(m_dirtyArea, Region(r1.createUnion(r2)));
}
// Make the dirty area relative to the sprite.
m_dirtyArea.offset(celOrigin);
// Merge new dirty area with the previous one (for tools like line
// or rectangle it's needed to redraw the previous position and
// the new one)
if (m_toolLoop->getTracePolicy() == TracePolicy::Last)
m_dirtyArea.createUnion(m_dirtyArea, prevDirtyArea);
// Apply tiled mode
TiledMode tiledMode = m_toolLoop->getTiledMode();
if (tiledMode != TiledMode::NONE) {
int w = m_toolLoop->sprite()->width();
int h = m_toolLoop->sprite()->height();
Region sprite_area(Rect(0, 0, w, h));
Region outside;
outside.createSubtraction(m_dirtyArea, sprite_area);
switch (tiledMode) {
case TiledMode::X_AXIS:
outside.createIntersection(outside, Region(Rect(-w*10000, 0, w*20000, h)));
break;
case TiledMode::Y_AXIS:
outside.createIntersection(outside, Region(Rect(0, -h*10000, w, h*20000)));
break;
}
Rect outsideBounds = outside.bounds();
if (outsideBounds.x < 0) outside.offset(w * (1+((-outsideBounds.x) / w)), 0);
if (outsideBounds.y < 0) outside.offset(0, h * (1+((-outsideBounds.y) / h)));
int x1 = outside.bounds().x;
while (true) {
Region in_sprite;
in_sprite.createIntersection(outside, sprite_area);
outside.createSubtraction(outside, in_sprite);
m_dirtyArea.createUnion(m_dirtyArea, in_sprite);
outsideBounds = outside.bounds();
if (outsideBounds.isEmpty())
break;
else if (outsideBounds.x+outsideBounds.w > w)
outside.offset(-w, 0);
else if (outsideBounds.y+outsideBounds.h > h)
outside.offset(x1-outsideBounds.x, -h);
else
break;
}
}
}
