77 lines
1.6 KiB
C++
77 lines
1.6 KiB
C++
// draggabletoolbutton.cpp
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#include "draggabletoolbutton.h"
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#include <QMouseEvent>
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#include <QApplication>
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#include <QDebug>
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DraggableToolButton::DraggableToolButton(QWidget *parent)
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: QToolButton(parent)
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, m_dragEnabled(true)
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, m_isDragging(false)
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{
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setMouseTracking(true);
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}
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void DraggableToolButton::setDragEnabled(bool enabled)
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{
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m_dragEnabled = enabled;
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}
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bool DraggableToolButton::dragEnabled() const
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{
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return m_dragEnabled;
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}
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void DraggableToolButton::setToolData(const QString &data)
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{
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m_toolData = data;
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}
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QString DraggableToolButton::toolData() const
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{
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return m_toolData;
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}
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void DraggableToolButton::mousePressEvent(QMouseEvent *event)
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{
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if (event->button() == Qt::LeftButton && m_dragEnabled) {
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m_pressPos = event->pos();
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m_isDragging = false;
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}
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// 不调用基类，完全自己处理
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event->accept();
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}
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void DraggableToolButton::mouseMoveEvent(QMouseEvent *event)
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{
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if (!m_dragEnabled || !(event->buttons() & Qt::LeftButton)) {
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event->ignore();
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return;
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}
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// 检查是否达到拖拽阈值
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int moveDist = (event->pos() - m_pressPos).manhattanLength();
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if (moveDist >= QApplication::startDragDistance()) {
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if (!m_isDragging) {
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m_isDragging = true;
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emit dragStarted(m_toolData, event->globalPosition().toPoint());
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}
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}
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event->accept();
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}
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void DraggableToolButton::mouseReleaseEvent(QMouseEvent *event)
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{
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if (event->button() == Qt::LeftButton) {
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if (!m_isDragging) {
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// 没有拖拽，是点击
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emit clicked();
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}
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m_isDragging = false;
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}
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event->accept();
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}
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