Qt实现带有点击按钮分割布局

#include "CCustomMySplitter.h" #include <QCheckBox> #include <QVBoxLayout> #include <QToolButton> #include <QVariant> #include <QDebug> #include <QMouseEvent> CCustomSplitter::CCustomSplitter(Qt::Orientation o, SplitterHiddenDirection shd, QWidget *parent) : QSplitter(o, parent) , m_enHiddenDirection(shd) { setHandleWidth(8); connect(this, SIGNAL(splitterMoved(int, int)), this, SLOT(onSplitterMoved(int, int))); } void CCustomSplitter::setHiddenDirection(SplitterHiddenDirection shd) { m_enHiddenDirection = shd; } QSplitterHandle *CCustomSplitter::createHandle() { m_pSplitterHandle = new CCustomSplitterHandle(this->orientation(), m_enHiddenDirection, this); connect(m_pSplitterHandle, SIGNAL(hideWidget(bool)), this, SLOT(onHideWidget(bool))); return m_pSplitterHandle; } void CCustomSplitter::onHideWidget(bool isHide) { if (isHide) { m_oOldState = saveState(); } else { if (!m_oOldState.isEmpty()) { restoreState(m_oOldState); return; } } QList<int> newLengths(sizes()); switch (m_enHiddenDirection) { case SHD_Left: case SHD_Top: { if (isHide) { newLengths[1] += newLengths[0]; newLengths[0] = 0; } else { newLengths[0] = 40; newLengths[1] = newLengths[1] - 40; } break; } case SHD_Right: case SHD_Bottom: { if (isHide) { newLengths[newLengths.count() - 2] += newLengths[newLengths.count() - 1]; newLengths[newLengths.count() - 1] = 0; } else { newLengths[newLengths.count() - 1] = 40; newLengths[newLengths.count() - 2] = newLengths[newLengths.count() - 2] - 40; } break; } default: break; } this->setSizes(newLengths); } void CCustomSplitter::onSplitterMoved(int pos, int index) { switch (m_enHiddenDirection) { case SHD_Left: { if (pos == 0) { m_pSplitterHandle->setButtonChecked(true); } else { m_pSplitterHandle->setButtonChecked(false); } break; } case SHD_Right: { if (pos == this->width() - m_pSplitterHandle->width()) { m_pSplitterHandle->setButtonChecked(true); } else { m_pSplitterHandle->setButtonChecked(false); } break; } case SHD_Top: { if (pos == 0) { m_pSplitterHandle->setButtonChecked(true); } else { m_pSplitterHandle->setButtonChecked(false); } break; } case SHD_Bottom: { if (pos == this->height() - m_pSplitterHandle->height()) { m_pSplitterHandle->setButtonChecked(true); } else { m_pSplitterHandle->setButtonChecked(false); } break; } default: break; } } CCustomSplitterHandle::CCustomSplitterHandle(Qt::Orientation orientation, SplitterHiddenDirection shd, QSplitter *parent) : QSplitterHandle(orientation, parent) , m_enHiddenDirection(shd) { this->setMouseTracking(false); m_pButton = new QToolButton(this); m_pButton->setCursor(Qt::ArrowCursor); m_pButton->setCheckable(true); connect(m_pButton, SIGNAL(clicked(bool)), this, SLOT(onButtonclicked(bool))); m_pButton->setProperty("HiddenDirection", QVariant((int)(m_enHiddenDirection))); this->setStyleSheet("\ QToolButton\ {\ border: none;\ }\ QToolButton[HiddenDirection=\"1\"]\ {\ background-image: url(:/res/splitterLeft.png);\ }\ QToolButton[HiddenDirection=\"1\"]::checked\ {\ background-image: url(:/res/splitterRight.png);\ }\ QToolButton[HiddenDirection=\"2\"]\ {\ background-image: url(:/res/splitterRight.png);\ }\ QToolButton[HiddenDirection=\"2\"]::checked\ {\ background-image: url(:/res/splitterLeft.png);\ }\ QToolButton[HiddenDirection=\"3\"]\ {\ background-image: url(:/res/splitterTop.png);\ }\ QToolButton[HiddenDirection=\"3\"]::checked\ {\ background-image: url(:/res/splitterBottom.png);\ }\ QToolButton[HiddenDirection=\"4\"]\ {\ background-image: url(:/res/splitterBottom.png);\ }\ QToolButton[HiddenDirection=\"4\"]:checked\ {\ background-image: url(:/res/splitterTop.png);\ }\ "); QLayout *pLayout; if (orientation == Qt::Horizontal) { m_pButton->setFixedSize(8, 68); pLayout = new QVBoxLayout; } else { m_pButton->setFixedSize(68, 8); pLayout = new QHBoxLayout; } pLayout->setContentsMargins(0,0,0,0); pLayout->addWidget(m_pButton); setLayout(pLayout); } CCustomSplitterHandle::~CCustomSplitterHandle() { } void CCustomSplitterHandle::setButtonChecked(bool checked) { m_pButton->setChecked(checked); } void CCustomSplitterHandle::onButtonclicked(bool checked) { emit hideWidget(checked); }