丝带菜单空白处

Question

我wxFormbuilder创建这个简单的wxWidgets应用：

正如你所看到的，有色带上的菜单选项卡的奇怪的空白。有什么我失踪？如果让功能区菜单直接排列在左上方，将会更好。如果有人需要它，这里是wxFormbuilder生成的代码：

this->SetSizeHints(wxSize(183,146), wxDefaultSize); 

wxBoxSizer* bSizer4; 
bSizer4 = new wxBoxSizer(wxVERTICAL); 

m_ribbonBar1 = new wxRibbonBar(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxRIBBON_BAR_DEFAULT_STYLE); 
m_ribbonBar1->SetArtProvider(new wxRibbonAUIArtProvider); 
m_ribbonPage1 = new wxRibbonPage(m_ribbonBar1, wxID_ANY, wxT("File") , wxNullBitmap , 0); 
m_ribbonBar1->SetActivePage(m_ribbonPage1); 
m_ribbonPanel1 = new wxRibbonPanel(m_ribbonPage1, wxID_ANY, wxT("File") , wxNullBitmap , wxDefaultPosition, wxDefaultSize, wxRIBBON_PANEL_DEFAULT_STYLE); 
m_rbtnBar = new wxRibbonButtonBar(m_ribbonPanel1, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0); 
m_rbtnBar->AddButton(wxID_ANY, wxT("New"), wxNullBitmap, wxEmptyString); 
m_rbtnBar->AddButton(wxID_ANY, wxT("Save"), wxNullBitmap, wxEmptyString); 
m_rbtnBar->AddButton(wxID_ANY, wxT("Load"), wxNullBitmap, wxEmptyString); 
m_ribbonPage2 = new wxRibbonPage(m_ribbonBar1, wxID_ANY, wxT("View") , wxNullBitmap , 0); 
m_ribbonBar1->SetActivePage(m_ribbonPage2); 
m_ribbonPanel21 = new wxRibbonPanel(m_ribbonPage2, wxID_ANY, wxT("View") , wxNullBitmap , wxDefaultPosition, wxDefaultSize, wxRIBBON_PANEL_DEFAULT_STYLE); 
m_ribbonButtonBar21 = new wxRibbonButtonBar(m_ribbonPanel21, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0); 
m_ribbonButtonBar21->AddButton(wxID_ANY, wxT("Do something"), wxNullBitmap, wxEmptyString); 
m_ribbonButtonBar21->AddButton(wxID_ANY, wxT("Do something else"), wxNullBitmap, wxEmptyString); 
m_ribbonBar1->Realize(); 

bSizer4->Add(m_ribbonBar1, 0, wxEXPAND, 5); 

wxBoxSizer* mainSizer; 
mainSizer = new wxBoxSizer(wxVERTICAL); 

m_ntbkMain = new wxNotebook(this, wxID_ANY, wxDefaultPosition, wxDefaultSize, 0); 
m_panel1 = new wxPanel(m_ntbkMain, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL); 
wxBoxSizer* bSizer6; 
bSizer6 = new wxBoxSizer(wxHORIZONTAL); 

wxBoxSizer* bSizer7; 
bSizer7 = new wxBoxSizer(wxVERTICAL); 

m_button11 = new wxButton(m_panel1, wxID_ANY, wxT("MyButton"), wxDefaultPosition, wxDefaultSize, 0); 
bSizer7->Add(m_button11, 0, wxALL, 5); 

m_button12 = new wxButton(m_panel1, wxID_ANY, wxT("MyButton"), wxDefaultPosition, wxDefaultSize, 0); 
bSizer7->Add(m_button12, 0, wxALL, 5); 

m_button13 = new wxButton(m_panel1, wxID_ANY, wxT("MyButton"), wxDefaultPosition, wxDefaultSize, 0); 
bSizer7->Add(m_button13, 0, wxALL, 5); 


bSizer6->Add(bSizer7, 1, wxEXPAND, 5); 


m_panel1->SetSizer(bSizer6); 
m_panel1->Layout(); 
bSizer6->Fit(m_panel1); 
m_ntbkMain->AddPage(m_panel1, wxT("Tab 1"), true); 
m_panel2 = new wxPanel(m_ntbkMain, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL); 
m_ntbkMain->AddPage(m_panel2, wxT("a page"), false); 
m_panel3 = new wxPanel(m_ntbkMain, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL); 
m_ntbkMain->AddPage(m_panel3, wxT("a page"), false); 
m_panel4 = new wxPanel(m_ntbkMain, wxID_ANY, wxDefaultPosition, wxDefaultSize, wxTAB_TRAVERSAL); 
m_ntbkMain->AddPage(m_panel4, wxT("a page"), false); 

mainSizer->Add(m_ntbkMain, 1, wxEXPAND, 5); 


bSizer4->Add(mainSizer, 1, wxEXPAND, 5); 


this->SetSizer(bSizer4); 
this->Layout(); 

this->Centre(wxBOTH); 

这就是我想要实现：

Answer 1

这是wxRibbonBar正常行为。该空间用于用户提供的文件菜单，或者实施wxRibbonBar（见http://www.corsix.org/gsoc/ribbon.html）时曾用于MS Office应用程序的圆形图标。

在此空间中提供[现在更常见]的“文件”菜单的一种方法是从wxRibbonMSWArtProvider（或其他提供者之一）派生自己的艺术提供者。您需要覆盖::DrawTabCtrlBackground。

下面是一个简单的例子：

void myArtProvider::DrawTabCtrlBackground(
         wxDC& dc, 
         wxWindow* WXUNUSED(wnd), 
         const wxRect& rect) 
{ 
    // Draw the background for the whole tab area. 
    dc.SetPen(*wxTRANSPARENT_PEN); 
    dc.SetBrush(m_tab_ctrl_background_brush); 
    dc.DrawRectangle(rect.x, rect.y, rect.width, rect.height); 

    // Draw the "File" menu background, unfortunately its static and doesn't change when hovered. 
    dc.SetBrush (wxColour(35, 70, 135)); 
    dc.DrawRectangle (rect.x, rect.y, 60, rect.height); 
    dc.SetFont (m_tab_label_font); 

    // Centre the "File" text in the available space (alternatively this could use wxDC::DrawLabel). 
    dc.SetTextForeground (*wxWHITE); 
    int text_height; 
    int text_width; 
    dc.GetTextExtent ("File", &text_width, &text_height); 
    int y = rect.y + ((rect.height - text_height)/2); 

    // Draw the "File" text. 
    dc.DrawText("File", rect.x + ((60 - text_width)/2) + 1, y); 
} 

然后需要绑定wxRibbonBar wxEVT_LEFT_DOWN事件处理函数，做任何你想要的，当你点击“文件”的情况发生（即显示一个弹出菜单或像最新版Office一样的全新页面）。

的结果是这样的： wxRibbonBar with "File" menu