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当动态更改wxNotebook中元素的大小(例如隐藏按钮)时,整个笔记本元素的大小不会更新。这可能会留下空白区域或阻止显示某些元素。当内容大小发生变化时调整wxNotebook的大小
通常情况下,对父窗口的Fit()或FitInside()的调用应该做到这一点,但不适用于笔记本电脑。我们如何调整它?
小例子,证明了问题:
#include <wx/wx.h>
#include <wx/gbsizer.h>
#include <wx/notebook.h>
const int HIDEME_ID = 512, SHOWME_ID = 513;
class MyApp: public wxApp
{
wxButton* hideme;
wxSizer* panel_sizer, *frame_sizer, *sw_sizer;
wxScrolledWindow* sw;
wxNotebook* nb;
void hide_button(wxCommandEvent&) {
hideme->Hide();
relayout();
}
void relayout() {
/* Insert layout code here */
}
void show_button(wxCommandEvent&) {
hideme->Show();
relayout();
}
virtual bool OnInit() {
wxFrame *frame = new wxFrame(NULL, wxID_ANY, _("Hello World"), wxPoint(50, 50), wxSize(450, 340));
frame_sizer = new wxBoxSizer(wxVERTICAL);
frame->SetSizer(frame_sizer);
sw = new wxScrolledWindow(frame, wxID_ANY);
sw->SetScrollRate(5, 5);
frame_sizer->Add(sw, 1, wxEXPAND);
sw_sizer = new wxBoxSizer(wxVERTICAL);
sw->SetSizer(sw_sizer);
nb = new wxNotebook(sw, wxID_ANY);
wxPanel* panel = new wxPanel(nb, wxID_ANY);
nb->AddPage(panel, wxT("Tab1"));
sw_sizer->Add(new wxButton(sw, wxID_ANY, _("Button1"), wxDefaultPosition, wxSize(200,200)), 0, wxEXPAND);
sw_sizer->Add(nb, 0, wxEXPAND);
sw_sizer->Add(new wxButton(sw, wxID_ANY, _("Button3")), 1, wxEXPAND);
sw_sizer->Add(new wxButton(sw, wxID_ANY, _("Button4")), 0, wxEXPAND);
panel_sizer = new wxBoxSizer(wxVERTICAL);
panel_sizer->Add(hideme = new wxButton(panel, HIDEME_ID, wxT("HideMe")), 0, wxEXPAND);
hideme->Hide();
panel_sizer->Add(new wxButton(panel, SHOWME_ID, wxT("ShowMe")), 0, wxEXPAND);
panel->SetSizer(panel_sizer);
frame->Show(true);
SetTopWindow(frame);
return true;
}
DECLARE_EVENT_TABLE();
};
BEGIN_EVENT_TABLE(MyApp, wxApp)
EVT_BUTTON(HIDEME_ID, MyApp::hide_button)
EVT_BUTTON(SHOWME_ID, MyApp::show_button)
END_EVENT_TABLE()
IMPLEMENT_APP(MyApp);
哦,我的上帝,谢谢!这已经让我烦恼了大约3个小时。所有你认为*的代码应该*工作,在使大小无效之后! – Robert