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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "snappinglinecreator.h"
#include "formeditoritem.h"
#include "formeditorview.h"
#include <QtDebug>
namespace QmlDesigner {
SnappingLineCreator::SnappingLineCreator(FormEditorItem *formEditorItem)
: m_formEditorItem(formEditorItem),
m_topOffset(formEditorItem->formEditorView()->spacing()),
m_bottomOffset(formEditorItem->formEditorView()->spacing()),
m_leftOffset(formEditorItem->formEditorView()->spacing()),
m_rightOffset(formEditorItem->formEditorView()->spacing()),
m_topPadding(formEditorItem->formEditorView()->containerPadding()),
m_bottomPadding(formEditorItem->formEditorView()->containerPadding()),
m_leftPadding(formEditorItem->formEditorView()->containerPadding()),
m_rightPadding(formEditorItem->formEditorView()->containerPadding())
{
Q_ASSERT(m_formEditorItem);
}
void SnappingLineCreator::clearLines()
{
m_topLineMap.clear();
m_bottomLineMap.clear();
m_leftLineMap.clear();
m_rightLineMap.clear();
m_horizontalCenterLineMap.clear();
m_verticalCenterLineMap.clear();
m_topOffsetMap.clear();
m_bottomOffsetMap.clear();
m_leftOffsetMap.clear();
m_rightOffsetMap.clear();
}
void SnappingLineCreator::addLines(const QRectF &rectInSceneSpace, FormEditorItem *item)
{
const QPair<QRectF, FormEditorItem*> rectInSceneSpaceItemPair = {rectInSceneSpace, item};
m_topLineMap.insert(rectInSceneSpace.top(), rectInSceneSpaceItemPair);
m_bottomLineMap.insert(rectInSceneSpace.bottom(), rectInSceneSpaceItemPair);
m_leftLineMap.insert(rectInSceneSpace.left(), rectInSceneSpaceItemPair);
m_rightLineMap.insert(rectInSceneSpace.right(), rectInSceneSpaceItemPair);
const QPointF centerPoint(rectInSceneSpace.center());
m_horizontalCenterLineMap.insert(centerPoint.y(), rectInSceneSpaceItemPair);
m_verticalCenterLineMap.insert(centerPoint.x(), rectInSceneSpaceItemPair);
}
void SnappingLineCreator::addOffsets(const QRectF &rectInSceneSpace, FormEditorItem *item)
{
const QPair<QRectF, FormEditorItem*> rectInSceneSpaceItemPair = {rectInSceneSpace, item};
m_topOffsetMap.insert(rectInSceneSpace.top() - m_topOffset, rectInSceneSpaceItemPair);
m_bottomOffsetMap.insert(rectInSceneSpace.bottom() + m_bottomOffset, rectInSceneSpaceItemPair);
m_leftOffsetMap.insert(rectInSceneSpace.left() - m_leftOffset, rectInSceneSpaceItemPair);
m_rightOffsetMap.insert(rectInSceneSpace.right() + m_rightOffset, rectInSceneSpaceItemPair);
}
void SnappingLineCreator::generateLines(const QList<FormEditorItem*> &exceptionList,
FormEditorItem *transformationSpaceItem)
{
if (!m_formEditorItem->qmlItemNode().isValid())
return;
Q_ASSERT(transformationSpaceItem);
{
QRectF containerBoundingRectInTransformationSpace = m_formEditorItem->mapRectToItem(transformationSpaceItem,
m_formEditorItem->qmlItemNode().instanceBoundingRect());
addLines(containerBoundingRectInTransformationSpace, m_formEditorItem);
containerBoundingRectInTransformationSpace.adjust(m_leftPadding, m_topPadding, -m_rightPadding, -m_rightPadding);
addLines(containerBoundingRectInTransformationSpace, m_formEditorItem);
}
const QList<FormEditorItem *> items = m_formEditorItem->childFormEditorItems();
for (FormEditorItem *item : items) {
if (!item || !item->qmlItemNode().isValid())
continue;
if (exceptionList.contains(item))
continue;
QRectF boundingRectInContainerSpace;
boundingRectInContainerSpace = item->mapRectToItem(transformationSpaceItem, item->qmlItemNode().instanceBoundingRect());
boundingRectInContainerSpace = boundingRectInContainerSpace.toRect(); // round to integer
addLines(boundingRectInContainerSpace, item);
addOffsets(boundingRectInContainerSpace, item);
}
}
void SnappingLineCreator::setContainerPaddingByGloablPadding(double containerPadding)
{
m_topPadding = containerPadding;
m_bottomPadding = containerPadding;
m_leftPadding = containerPadding;
m_rightPadding = containerPadding;
}
void SnappingLineCreator::setContainerPaddingByContentItem(const QRectF &contentRectangle, const QRectF &itemBoundingRectangle)
{
m_topPadding = contentRectangle.top() - itemBoundingRectangle.top();
m_bottomPadding = itemBoundingRectangle.bottom() - contentRectangle.bottom();
m_leftPadding = contentRectangle.left() - itemBoundingRectangle.left();
m_rightPadding = itemBoundingRectangle.right() - contentRectangle.right();
}
void SnappingLineCreator::setSpacing(double spacing)
{
m_topOffset = spacing;
m_bottomOffset = spacing;
m_leftOffset = spacing;
m_rightOffset = spacing;
}
void SnappingLineCreator::update(const QList<FormEditorItem*> &exceptionList,
FormEditorItem *transformationSpaceItem,
FormEditorItem *containerFormEditorItem)
{
clearLines();
setContainerPaddingItem(containerFormEditorItem);
setSpacing(m_formEditorItem->formEditorView()->spacing());
generateLines(exceptionList, transformationSpaceItem);
}
SnapLineMap SnappingLineCreator::topLines() const
{
return m_topLineMap;
}
SnapLineMap SnappingLineCreator::bottomLines() const
{
return m_bottomLineMap;
}
SnapLineMap SnappingLineCreator::leftLines() const
{
return m_leftLineMap;
}
SnapLineMap SnappingLineCreator::rightLines() const
{
return m_rightLineMap;
}
SnapLineMap SnappingLineCreator::horizontalCenterLines() const
{
return m_horizontalCenterLineMap;
}
SnapLineMap SnappingLineCreator::verticalCenterLines() const
{
return m_verticalCenterLineMap;
}
SnapLineMap SnappingLineCreator::topOffsets() const
{
return m_topOffsetMap;
}
SnapLineMap SnappingLineCreator::bottomOffsets() const
{
return m_bottomOffsetMap;
}
SnapLineMap SnappingLineCreator::leftOffsets() const
{
return m_leftOffsetMap;
}
SnapLineMap SnappingLineCreator::rightOffsets() const
{
return m_rightOffsetMap;
}
void SnappingLineCreator::setContainerPaddingItem(FormEditorItem *transformationSpaceItem)
{
QmlItemNode containerItemNode = transformationSpaceItem->qmlItemNode();
QRectF contentRect = containerItemNode.instanceContentItemBoundingRect();
if (contentRect.isValid())
setContainerPaddingByContentItem(contentRect, containerItemNode.instanceBoundingRect());
else
setContainerPaddingByGloablPadding(m_formEditorItem->formEditorView()->containerPadding());
}
}
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