98 lines
2.5 KiB
C++
98 lines
2.5 KiB
C++
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#include "graphicsItem/functionModelItem/graphicsFunctionModelItem.h"
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GraphicsFunctionModelItem::GraphicsFunctionModelItem(QGraphicsItem *parent)
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: GraphicsProjectModelItem(parent)
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{
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}
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GraphicsProjectModelItem::~GraphicsProjectModelItem()
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{
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}
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void GraphicsProjectModelItem::paint(QPainter* painter, const QStyleOptionGraphicsItem* option, QWidget* widget)
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{
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Q_UNUSED(option)
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Q_UNUSED(widget)
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}
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/********************************功能模item组*************************************/
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GraphicsFunctionModelGroup::GraphicsFunctionModelGroup(QGraphicsItem *parent)
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:GraphicsFunctionModelItem(parent)
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{
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}
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GraphicsFunctionModelGroup::~GraphicsFunctionModelGroup()
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{
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}
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void GraphicsFunctionModelGroup::addItem(GraphicsFunctionModelItem* item)
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{
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item->setParentItem(this); // 关键：设置父项
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m_childItems.append(item);
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updateLayout();
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}
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QRectF GraphicsFunctionModelGroup::updateBoundRect()
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{
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QRectF rect;
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if(m_childItems.size()){
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for (auto* child : m_childItems) {
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rect |= child->boundingRect().translated(child->pos());
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}
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m_boundingRect = rect;
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}
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else
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{
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return m_boundingRect;
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}
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updateHandles();
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return rect;
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}
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void GraphicsFunctionModelGroup::updateLayout()
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{
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if (m_childItems.isEmpty()) return;
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// 计算所有子项的总尺寸
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qreal totalSize = 0;
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QList<qreal> childSizes;
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for (GraphicsBaseItem *child : m_childItems) {
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QRectF childRect = child->boundingRect();
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qreal size = (m_direction == 0) ? childRect.width() : childRect.height();
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childSizes.append(size);
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totalSize += size;
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}
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// 计算总间距
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qreal totalSpacing = m_spacing * (m_childItems.size() - 1);
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// 计算起始位置（相对于父项中心）
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qreal startPos = -(totalSize + totalSpacing) / 2;
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// 定位每个子项
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qreal currentPos = startPos;
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for (int i = 0; i < m_childItems.size(); ++i) {
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GraphicsBaseItem *child = m_childItems[i];
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QRectF childRect = child->boundingRect();
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if (m_direction == 0) {
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// 水平布局：x坐标变化，y坐标保持中心对齐
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child->setPos(currentPos, -childRect.height() / 2);
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currentPos += childSizes[i] + m_spacing;
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} else {
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// 垂直布局：y坐标变化，x坐标保持中心对齐
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child->setPos(-childRect.width() / 2, currentPos);
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currentPos += childSizes[i] + m_spacing;
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}
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}
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updateBoundRect();
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}
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