可扩展的 wxSizer 取决于窗口大小

您需要将其视为多个嵌套块。

1. 在最高级别，您有 3 个水平排列的块：右矩形、中心矩形和左矩形。为了实现这一点，您需要一个wxBoxSizer水平方向。
2. 在第二层，即中心矩形，您有 3 个垂直排列的块：顶部矩形、中心矩形和底部矩形。您将需要一个wxBoxSizer垂直方向。
3. 为了使中心扩展以填充空间，您需要使用该proportion参数。

这是一个代码片段示例：

wxBoxSizer* rootsizer = new wxBoxSizer(wxHORIZONTAL);

//TODO: the right side control is whatever you need it to be
wxPanel* rightPanel = new wxPanel(parent, wxID_ANY, wxDefaultPosition, rightPanelSize);
//NOTE the use of 0 as the proportion; this means the right panel will NOT expand
//horizontally; it is fixed in size.  The wxEXPAND flag means it will expand vertically
//to fill
rootsizer->Add(rightpanel, 0, wxEXPAND, 0);

//Our center sizer to contain our center controls
wxBoxSizer* centersizer = new wxBoxSizer(wxVERTICAL);
//NOTE the use of 1 as the proportion; this means the center panel will expand HORIZONTALLY to fill all available space
rootsizer->Add(centersizer, 1, wxEXPAND, 0);

//TODO: whatever control goes on the left
wxPanel* leftpanel = new wxPanel(parent, wxID_ANY, wxDefaultPosition, leftPanelSize);
//Proportion is again 0 to prevent expanding horizontally
rootsizer->Add(leftpanel, 0, wxEXPAND, 0);

//Now the second level

//TODO: whatever control goes on the top
wxPanel* toppanel = new wxPanel(parent, wxID_ANY, wxDefaultPosition, topPanelSize);
//Proportion is 0 to prevent expanding VERTICALLY (because we are now in the center sizer
//which is a vertical sizer
centersizer->Add(toppanel, 0, wxEXPAND, 0);

//Our final depth, the centermost control, is set to a proportion of 1 to fill the space
//vertically
//TODO: whatever is your center control
wxPanel* centerpanel = new wxPanel(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize);
centersizer->Add(centerpanel, 1, wxEXPAND, 0);

//And then the bottom control at proportion 0
wxPanel* bottompanel= new wxPanel(parent, wxID_ANY, wxDefaultPosition, bottomPanelSize);
centersizer->Add(bottompanel, 0, wxEXPAND, 0);

通过组合多个级别的 sizerwxEXPAND并正确分配proportion，您可以获得适当的灵活性。您只需要学会从仅在一个方向上扩展和收缩的控件组来看待它。