正在实现一个卡片式的界面风格，用wxPanel做容器，里面放置一个 static bmp和static text。希望实现的效果很简单，鼠标移到当前卡片，卡片变大，并且变色，鼠标移走后卡片回复原来大小，颜色也变回去。我在OnEnter和OnLeave中加了相关控制代码，基本能实现这个效果。但是如果鼠标移动较快的话，就会有几个卡片同时选中的情况出现。调试了很久也没有解决。从打出的log来看，是在onLeave的!GetClientRect().Contains(event.GetPosition())条件为false，所以不能将卡片的状态还原。刚开始接触wxwidget，对于消息响应和鼠标动作都不熟悉，哪位高手能不吝指点一下！
void TypeCard::OnEnter(wxMouseEvent& event) {
wxRect rect = GetClientRect();
wxPoint pnt = event.GetPosition();
TRACELOG_WARNING("@@@@@@ On Enter left=%d top=%d width=%d height=%d", rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight());
TRACELOG_WARNING("&&&&&& On Enter x=%d y=%d", pnt.x, pnt.y);
if (GetClientRect().Contains(event.GetPosition()) && !selected_ ) {
TRACELOG_WARNING("&&&&&&On Enter = true");
if (m_bZoomEnabled) {
ZoomCard(zoom_in, 20, 10);
}
selected_ = true;
} else {
TRACELOG_WARNING("*****************************************************On Enter = false m_bInControl = %d", (int)m_bInControl);
}
// have_focus_ = true;
Refresh(false);
Update();
event.Skip();
}
void TypeCard::OnLeave(wxMouseEvent& event) {
wxRect rect = GetClientRect();
wxPoint pnt = event.GetPosition();
TRACELOG_WARNING("@@@@@@ On OnLeave left=%d top=%d width=%d height=%d", rect.GetLeft(), rect.GetTop(), rect.GetWidth(), rect.GetHeight());
TRACELOG_WARNING("&&&&&& On OnLeave x=%d y=%d", pnt.x, pnt.y);
// if (!GetClientRect().Contains(event.GetPosition())) {
if (!rect.Contains(pnt)) {
if (m_bZoomEnabled) {
ZoomCard(zoom_out, 20, 10);
}
selected_ = false;
} else {
TRACELOG_WARNING("*****************************************************On OnLeave = false");
}
if (!selected_) {
// have_focus_ = false;
Refresh(false);
Update();
}
event.Skip();
}
void TypeCard::OnPaint(wxPaintEvent& event) {
wxPaintDC dc(this);
wxColour colour = selected_ ? CARD_SELECT_BACKGROUND_COLOUR : COMPONENT_UNSELECT_BACKGROUND_COLOUR;
wxCursor cur = selected_ ? wxCURSOR_HAND : wxCURSOR_ARROW;
dc.SetPen(wxPen(colour));
dc.SetBrush(wxBrush(colour));
this->SetCursor(cur);
const wxWindowList& list = this->GetChildren();
for (wxWindowList::compatibility_iterator node = list.GetFirst(); node; node = node->GetNext()) {
wxWindow* current = node->GetData();
if (current) {
current->SetBackgroundColour(colour);
current->SetCursor(cur);
}
}
dc.DrawRectangle(0, 0, this->GetSize().GetWidth(), GetSize().GetHeight());
}

这个应该跟鼠标监听的频率有关吧，你移动太快了，鼠标监听到的信号丢失了

尝试一下鼠标捕获试试，当鼠标在控件内部，就捕获，当鼠标移动到边缘，就释放捕获