问题描述
我正在尝试在wxWidgets项目中创建一个wxGrid。由于某种原因，尽管有关wxWidgets的其他所有内容似乎都可以正常工作，但它无法正常工作。就像我不确定wxWidgets安装不支持wxGrid一样。
当我创建一个基本程序时，它可以正常工作。例如，当我使用wxWidgets目录中的最小示例创建最小项目时，它运行良好，并显示消息对话框。但是，当我将其添加到顶部时：
#include <wx/grid.h>
这到框架构造函数的结尾
// Create a wxGrid object
wxGrid *grid = new wxGrid(this,wxID_ANY,wxDefaultPosition,wxSize(400,300));
// Then we call CreateGrid to set the dimensions of the grid
// (8 rows and 10 columns in this example)
grid->CreateGrid(8,10);
// We can set the sizes of individual rows and columns
// in pixels
grid->SetRowSize(0,60);
grid->SetColSize(0,120 );
// And set grid cell contents as strings
grid->SetCellValue(0,wxT("wxGrid is good"));
// We can specify that some cells are read-only
grid->SetCellValue(0,3,wxT("This is read-only"));
grid->SetReadOnly(0,3);
// Colors can be specified for grid cell contents
grid->SetCellValue(3,wxT("green on grey"));
grid->SetCellTextColour(3,*wxGREEN);
grid->SetCellBackgroundColour(3,*wxLIGHT_GREY);
// We can specify that some cells will store numeric
// values rather than strings. Here we set grid column 5
// to hold floating point values displayed with width of 6
// and precision of 2
grid->SetColFormatFloat(5,6,2);
grid->SetCellValue(0,wxT("3.1415"));
// Set the grid size to the minimum required to show the content
grid->Fit();
// Set the parent frame client size to fit the grid
this->SetClientSize(grid->GetSize());
当我尝试构建时，它停在行上
grid->CreateGrid(8,10);
并在构建日志中说：
||=== Build: Debug in minimal (compiler: GNU GCC Compiler) ===|
obj\Debug\minimal.o||In function `MyFrame::MyFrame(wxString const&)':|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|187|undefined reference to `wxGrid::CreateGrid(int,int,wxGrid::wxGridSelectionModes)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|191|undefined reference to `wxGrid::SetRowSize(int,int)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|192|undefined reference to `wxGrid::SetColSize(int,int)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|195|undefined reference to `wxGrid::SetCellValue(int,wxString const&)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|198|undefined reference to `wxGrid::SetCellValue(int,wxString const&)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|199|undefined reference to `wxGrid::SetReadOnly(int,bool)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|202|undefined reference to `wxGrid::SetCellValue(int,wxString const&)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|203|undefined reference to `wxGrid::SetCellTextColour(int,wxColour const&)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|204|undefined reference to `wxGrid::SetCellBackgroundColour(int,wxColour const&)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|210|undefined reference to `wxGrid::SetColFormatFloat(int,int)'|
C:\Users\Geoff\Desktop\minimal\minimal.cpp|211|undefined reference to `wxGrid::SetCellValue(int,wxString const&)'|
obj\Debug\minimal.o||In function `wxGrid::wxGrid(wxWindow*,wxPoint const&,wxSize const&,long,wxString const&)':|
C:\Users\Geoff\Desktop\wxWidgets-3.0.5\include\wx\generic\grid.h|944|undefined reference to `wxGrid::Init()'|
C:\Users\Geoff\Desktop\wxWidgets-3.0.5\include\wx\generic\grid.h|946|undefined reference to `wxGrid::Create(wxWindow*,wxString const&)'|
obj\Debug\minimal.o:minimal.cpp:(.rdata$.refptr.wxGridNameStr[.refptr.wxGridNameStr]+0x0)||undefined reference to `wxGridNameStr'|
obj\Debug\minimal.o:minimal.cpp:(.rdata$.refptr._ZTV6wxGrid[.refptr._ZTV6wxGrid]+0x0)||undefined reference to `vtable for wxGrid'|
||error: ld returned 1 exit status|
||=== Build Failed: 16 error(s),0 warning(s) (0 minute(s),2 second(s)) ===|
我不明白，因为我已经在CodeBlocks中使用wxWidgets已有几个月了，并且从未遇到使用任何类型控件的问题。我在顶部包括网格。而且它并没有停止在我声明网格的那一行，问题开始于CreateGrid
此外，如果我尝试使用wxSmith构建器创建wxWidgets项目，则当我尝试向框架添加网格时，程序崩溃，并弹出消息：
我在做什么错了？
这是我要运行的完整的minimal.cpp文件
// For compilers that support precompilation,includes "wx/wx.h".
#include "wx/wxprec.h"
// ADDED BY ME
#include <wx/grid.h>
#ifdef __BORLANDC__
#pragma hdrstop
#endif
// for all others,include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
#include "wx/wx.h"
#endif
// the application icon (under Windows and OS/2 it is in resources and even
// though we Could still include the XPM here it would be unused)
#ifndef wxHAS_IMAGES_IN_RESOURCES
#include "../sample.xpm"
#endif
// Define a new application type,each program should derive a class from wxApp
class MyApp : public wxApp
{
public:
// override base class virtuals
// ----------------------------
// this one is called on application startup and is a good place for the app
// initialization (doing it here and not in the ctor allows to have an error
// return: if OnInit() returns false,the application terminates)
virtual bool OnInit();
};
// Define a new frame type: this is going to be our main frame
class MyFrame : public wxFrame
{
public:
// ctor(s)
MyFrame(const wxString& title);
// event handlers (these functions should _not_ be virtual)
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
private:
// any class wishing to process wxWidgets events must use this macro
wxDECLARE_EVENT_TABLE();
};
// IDs for the controls and the menu commands
enum
{
// menu items
Minimal_Quit = wxID_EXIT,// it is important for the id corresponding to the "About" command to have
// this standard value as otherwise it won't be handled properly under Mac
// (where it is special and put into the "Apple" menu)
Minimal_About = wxID_ABOUT
};
// the event tables connect the wxWidgets events with the functions (event
// handlers) which process them. It can be also done at run-time,but for the
// simple menu events like this the static method is much simpler.
wxBEGIN_EVENT_TABLE(MyFrame,wxFrame)
EVT_MENU(Minimal_Quit,MyFrame::OnQuit)
EVT_MENU(Minimal_About,MyFrame::OnAbout)
wxEND_EVENT_TABLE()
// Create a new application object: this macro will allow wxWidgets to create
// the application object during program execution (it's better than using a
// static object for many reasons) and also implements the accessor function
// wxGetApp() which will return the reference of the right type (i.e. MyApp and
// not wxApp)
IMPLEMENT_APP(MyApp)
// 'Main program' equivalent: the program execution "starts" here
bool MyApp::OnInit()
{
// call the base class initialization method,currently it only parses a
// few common command-line options but it Could be do more in the future
if ( !wxApp::OnInit() )
return false;
// create the main application window
MyFrame *frame = new MyFrame("Minimal wxWidgets App");
// and show it (the frames,unlike simple controls,are not shown when
// created initially)
frame->Show(true);
// success: wxApp::OnRun() will be called which will enter the main message
// loop and the application will run. If we returned false here,the
// application would exit immediately.
return true;
}
// frame constructor
MyFrame::MyFrame(const wxString& title)
: wxFrame(NULL,title)
{
// set the frame icon
SetIcon(wxICON(sample));
#if wxUSE_MENUS
// create a menu bar
wxMenu *fileMenu = new wxMenu;
// the "About" item should be in the help menu
wxMenu *helpMenu = new wxMenu;
helpMenu->Append(Minimal_About,"&About\tF1","Show about dialog");
fileMenu->Append(Minimal_Quit,"E&xit\tAlt-X","Quit this program");
// Now append the freshly created menu to the menu bar...
wxMenuBar *menuBar = new wxMenuBar();
menuBar->Append(fileMenu,"&File");
menuBar->Append(helpMenu,"&Help");
// ... and attach this menu bar to the frame
SetMenuBar(menuBar);
#endif // wxUSE_MENUS
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
SetStatusText("Welcome to wxWidgets!");
#endif // wxUSE_STATUSBAR
// Create a wxGrid object
wxGrid *grid = new wxGrid(this,300));
// Then we call CreateGrid to set the dimensions of the grid
// (8 rows and 10 columns in this example)
grid->CreateGrid(8,10);
// We can set the sizes of individual rows and columns
// in pixels
grid->SetRowSize(0,60);
grid->SetColSize(0,120 );
// And set grid cell contents as strings
grid->SetCellValue(0,wxT("wxGrid is good"));
// We can specify that some cells are read-only
grid->SetCellValue(0,wxT("This is read-only"));
grid->SetReadOnly(0,3);
// Colors can be specified for grid cell contents
grid->SetCellValue(3,wxT("green on grey"));
grid->SetCellTextColour(3,*wxGREEN);
grid->SetCellBackgroundColour(3,*wxLIGHT_GREY);
// We can specify that some cells will store numeric
// values rather than strings. Here we set grid column 5
// to hold floating point values displayed with width of 6
// and precision of 2
grid->SetColFormatFloat(5,2);
grid->SetCellValue(0,wxT("3.1415"));
// Set the grid size to the minimum required to show the content
grid->Fit();
// Set the parent frame client size to fit the grid
this->SetClientSize(grid->GetSize());
}
// event handlers
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
// true is to force the frame to close
Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(wxString::Format
(
"Welcome to %s!\n"
"\n"
"This is the minimal wxWidgets sample\n"
"running under %s.",wxVERSION_STRING,wxGetosDescription()
),"About wxWidgets minimal sample",wxOK | wxICON_informatION,this);
}
解决方法
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