Commit f32ddfc4 authored by Thorsten Zachmann's avatar Thorsten Zachmann

o Fix Bug: group order breaks in karbon

This fixes the painting of shapes to appear in random order.

This also changes the way the painting of the shapes is done. Now the
shapes are painted by their hierarchy. This means it is no longer
possible to have shapes in different layers that are drawn mixed.
(Meaning shapes from on layer are drawn between shapes from a different
 layer.)
Also the reorder commands have changed to make sure the created
z-index's are allways unique in one level of the hierarchy.
The creation of the layers are fixed to create a unique z-index.
No command will be generated if the order has not changed, e.g. if the
top most shape is risen.
The feature to raise above a shape overlapping the risen one gone for
now. Not sure if it is possible with the used algorithm.

BUG: 185952

svn path=/trunk/koffice/; revision=1030297
parent c4ab5cdf
......@@ -383,22 +383,35 @@ QMatrix KoShape::transformation() const
bool KoShape::compareShapeZIndex(KoShape *s1, KoShape *s2)
{
int diff = s1->zIndex() - s2->zIndex();
if (diff == 0) {
KoShape *s = s1->parent();
while (s) {
if (s == s2) // s1 is a child of s2
return false; // children are always on top of their parents.
s = s->parent();
bool foundCommonParent = false;
KoShape *parentShapeS1 = s1;
KoShape *parentShapeS2 = s2;
int index1 = parentShapeS1->zIndex();
int index2 = parentShapeS2->zIndex();
while (parentShapeS1 && !foundCommonParent) {
parentShapeS2 = s2;
index2 = parentShapeS2->zIndex();
while (parentShapeS2) {
if (parentShapeS2 == parentShapeS1) {
foundCommonParent = true;
break;
}
index2 = parentShapeS2->zIndex();
parentShapeS2 = parentShapeS2->parent();
}
s = s2->parent();
while (s) {
if (s == s1) // s2 is a child of s1
return true;
s = s->parent();
if (!foundCommonParent) {
index1 = parentShapeS1->zIndex();
parentShapeS1 = parentShapeS1->parent();
}
}
return diff < 0;
if (s1 == parentShapeS2) {
return true;
}
else if (s2 == parentShapeS1) {
return false;
}
return index1 < index2;
}
void KoShape::setParent(KoShapeContainer *parent)
......@@ -421,8 +434,6 @@ void KoShape::setParent(KoShapeContainer *parent)
int KoShape::zIndex() const
{
Q_D(const KoShape);
if (parent()) // we can't be under our parent...
return qMax((int) d->zIndex, parent()->zIndex());
return d->zIndex;
}
......
......@@ -20,6 +20,7 @@
#include "KoShapeReorderCommand.h"
#include "KoShape.h"
#include "KoShapeManager.h"
#include "KoShapeContainer.h"
#include <klocale.h>
#include <kdebug.h>
......@@ -57,61 +58,111 @@ void KoShapeReorderCommand::undo()
}
}
void KoShapeReorderCommand::prepare(KoShape * s, QMap<KoShape*, QList<KoShape*> > & newOrder, KoShapeManager * manager, MoveShapeType move)
{
KoShapeContainer * parent = s->parent();
QMap<KoShape*, QList<KoShape*> >::iterator it( newOrder.find( parent ) );
if ( it == newOrder.end() ) {
QList<KoShape*> children;
if ( parent != 0 ) {
children = parent->childShapes();
}
else {
// get all toplevel shapes
QList<KoShape*> shapes( manager->shapes() );
foreach(KoShape *shape, shapes) {
if (shape->parent() == 0) {
children.append(shape);
}
}
}
qSort(children.begin(), children.end(), KoShape::compareShapeZIndex);
// the append and prepend are needed so that the raise/lower of all shapes works as expected.
children.append(0);
children.prepend(0);
it = newOrder.insert(parent, children);
}
QList<KoShape *> & shapes(newOrder[parent]);
int index = shapes.indexOf(s);
if (index != -1) {
shapes.removeAt(index);
switch ( move ) {
case BringToFront:
index = shapes.size();
break;
case RaiseShape:
if (index < shapes.size()) {
++index;
}
break;
case LowerShape:
if (index > 0) {
--index;
}
break;
case SendToBack:
index = 0;
break;
}
shapes.insert(index,s);
}
}
// static
KoShapeReorderCommand *KoShapeReorderCommand::createCommand(const QList<KoShape*> &shapes, KoShapeManager *manager, MoveShapeType move, QUndoCommand *parent)
{
QList<int> newIndexes;
QList<KoShape*> changedShapes;
foreach(KoShape *shape, shapes) {
// for each shape create a 'stack' and then move the shape up/down
// since two indexes can not collide we may need to change the zIndex of a number
// of other shapes in the stack as well.
QList<KoShape*> sortedShapes(manager->shapesAt(shape->boundingRect(), false));
if (sortedShapes.count() == 1)
continue;
qSort(sortedShapes.begin(), sortedShapes.end(), KoShape::compareShapeZIndex);
if (move == BringToFront) {
KoShape *top = *(--sortedShapes.end());
changedShapes.append(shape);
newIndexes.append(top->zIndex() + 1);
} else if (move == SendToBack) {
KoShape *bottom = (*sortedShapes.begin());
changedShapes.append(shape);
newIndexes.append(bottom->zIndex() - 1);
} else {
QList<KoShape*>::Iterator iter = sortedShapes.begin();
while ((*iter) != shape && iter != sortedShapes.end())
iter++;
if (iter == sortedShapes.end())
continue;
QMap<KoShape*, QList<KoShape*> > newOrder;
QList<KoShape*> sortedShapes(shapes);
qSort(sortedShapes.begin(), sortedShapes.end(), KoShape::compareShapeZIndex);
if ( move == BringToFront || move == LowerShape ) {
for ( int i = 0; i < sortedShapes.size(); ++i ) {
prepare(sortedShapes.at(i), newOrder, manager, move);
}
}
else {
for ( int i = sortedShapes.size() - 1; i >= 0; --i ) {
prepare(sortedShapes.at(i), newOrder, manager, move);
}
}
if (move == RaiseShape) {
if (++iter == sortedShapes.end()) continue; // already at top
int newIndex = (*iter)->zIndex() + 1;
changedShapes.append(shape);
newIndexes.append(newIndex);
++iter; // skip the one we want to get above.
while (iter != sortedShapes.end() && newIndex <= (*iter)->zIndex()) {
changedShapes.append(*iter);
newIndexes.append(++newIndex);
iter++;
}
} else if (move == LowerShape) {
if (iter == sortedShapes.begin()) continue; // already at bottom
iter--; // go to the one below
int newIndex = (*iter)->zIndex() - 1;
changedShapes.append(shape);
newIndexes.append(newIndex);
if (iter == sortedShapes.begin()) continue; // moved to the bottom
--iter; // skip the one we want to get below
while (iter != sortedShapes.begin() && newIndex >= (*iter)->zIndex()) {
changedShapes.append(*iter);
newIndexes.append(--newIndex);
iter--;
}
QMap<KoShape*, QList<KoShape*> >::iterator newIt(newOrder.begin());
for (; newIt!= newOrder.end(); ++newIt) {
QList<KoShape*> order( newIt.value() );
order.removeAll(0);
int index = -2^13;
int pos = 0;
for (; pos < order.size(); ++pos) {
if (order[pos]->zIndex() > index) {
index = order[pos]->zIndex();
}
else {
break;
}
}
if (pos == order.size()) {
//nothing needs to be done
continue;
}
else if (pos <= order.size() / 2) {
// new index for the front
int startIndex = order[pos]->zIndex() - pos;
for (int i = 0; i < pos; ++i) {
changedShapes.append(order[i]);
newIndexes.append(startIndex++);
}
}
else {
//new index for the end
for (int i = pos; i < order.size(); ++i) {
changedShapes.append(order[i]);
newIndexes.append(++index);
}
}
}
Q_ASSERT(changedShapes.count() == newIndexes.count());
return new KoShapeReorderCommand(changedShapes, newIndexes, parent);
return changedShapes.isEmpty() ? 0: new KoShapeReorderCommand(changedShapes, newIndexes, parent);
}
......@@ -58,6 +58,7 @@ public:
* @param manager the shapeManager that contains all the shapes that could have their indexes changed.
* @param move the moving type.
* @param parent the parent command for grouping purposes.
* @return command for reording the shapes or 0 if no reordering happend
*/
static KoShapeReorderCommand *createCommand(const QList<KoShape*> &shapes, KoShapeManager *manager,
MoveShapeType move, QUndoCommand *parent = 0);
......@@ -68,6 +69,8 @@ public:
void undo();
private:
static void prepare(KoShape * s, QMap<KoShape*, QList<KoShape*> > & newOrder, KoShapeManager * manager, MoveShapeType move);
QList<KoShape*> m_shapes;
QList<int> m_previousIndexes, m_newIndexes;
};
......
......@@ -231,6 +231,7 @@ void TestShapeReorderCommand::testMoveUpOverlapping()
void TestShapeReorderCommand::testMoveDownOverlapping()
{
#if 0 // disable a current alogrithm does not yet support this
MockShape shape1, shape2, shape3, shape4, shape5;
shape1.setSize(QSizeF(100, 100));
......@@ -275,6 +276,7 @@ void TestShapeReorderCommand::testMoveDownOverlapping()
QVERIFY(shape3.zIndex() < shape4.zIndex());
QVERIFY(shape4.zIndex() > shape5.zIndex());
QVERIFY(shape3.zIndex() > shape5.zIndex());
#endif
}
void TestShapeReorderCommand::testSendToBackChildren()
......@@ -354,5 +356,61 @@ void TestShapeReorderCommand::testSendToBackChildren()
QCOMPARE(shapes.indexOf(&shape3), 3);
}
void TestShapeReorderCommand::testNoCommand()
{
MockShape shape1, shape2, shape3;
shape1.setSize(QSizeF(100, 100));
shape1.setZIndex(1);
shape2.setSize(QSizeF(100, 100));
shape2.setZIndex(2);
shape3.setSize(QSizeF(100, 100));
shape3.setZIndex(3);
QList<KoShape*> shapes;
shapes.append(&shape1);
shapes.append(&shape2);
shapes.append(&shape3);
MockCanvas canvas;
KoShapeManager manager(&canvas, shapes);
qSort(shapes.begin(), shapes.end(), KoShape::compareShapeZIndex);
QCOMPARE(shapes.indexOf(&shape1), 0);
QCOMPARE(shapes.indexOf(&shape2), 1);
QCOMPARE(shapes.indexOf(&shape3), 2);
QList<KoShape*> selectedShapes;
selectedShapes.append(&shape3);
QUndoCommand * cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::BringToFront);
QVERIFY(cmd == 0);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::RaiseShape);
QVERIFY(cmd == 0);
selectedShapes.append(&shape1);
selectedShapes.append(&shape2);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::BringToFront);
QVERIFY(cmd == 0);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::RaiseShape);
QVERIFY(cmd == 0);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::LowerShape);
QVERIFY(cmd == 0);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::SendToBack);
QVERIFY(cmd == 0);
selectedShapes.clear();
selectedShapes.append(&shape1);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::SendToBack);
QVERIFY(cmd == 0);
cmd = KoShapeReorderCommand::createCommand(selectedShapes, &manager, KoShapeReorderCommand::LowerShape);
QVERIFY(cmd == 0);
}
QTEST_MAIN(TestShapeReorderCommand)
#include "TestShapeReorderCommand.moc"
......@@ -36,6 +36,7 @@ private slots:
void testMoveUpOverlapping();
void testMoveDownOverlapping();
void testSendToBackChildren();
void testNoCommand();
};
#endif // TESTSHAPEREORDERCOMMAND_H
......@@ -333,6 +333,11 @@ void KoPADocumentStructureDocker::addLayer()
if ( canvas ) {
layer->setParent( canvas->koPAView()->activePage() );
layer->setName( name );
QList<KoShape*> layers( canvas->koPAView()->activePage()->childShapes() );
if ( !layers.isEmpty() ) {
qSort( layers.begin(), layers.end(), KoShape::compareShapeZIndex );
layer->setZIndex( layers.last()->zIndex() + 1 );
}
QUndoCommand *cmd = new KoShapeCreateCommand( m_doc, layer, 0 );
cmd->setText( i18n( "Create Layer") );
m_doc->addCommand( cmd );
......
......@@ -1071,7 +1071,9 @@ void DefaultTool::selectionReorder(KoShapeReorderCommand::MoveShapeType order)
return;
QUndoCommand * cmd = KoShapeReorderCommand::createCommand(editableShapes, m_canvas->shapeManager(), order);
m_canvas->addCommand(cmd);
if (cmd) {
m_canvas->addCommand(cmd);
}
}
QMap<QString, QWidget *> DefaultTool::createOptionWidgets()
......
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