wxWidgets中sample的树控件的学习

wxTreeCtrl的头文件，其中对其部分做了相应修改。详细信息可见中文注释。

///////////////////////////////////////////////////////////////////////////// // Name: treectrl.h // Purpose: wxTreeCtrl sample // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id: treetest.h 43021 2006-11-04 11:26:51Z VZ $ // Copyright: (c) Julian Smart // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// #define USE_GENERIC_TREECTRL 0 // 树控件的ID宏定义 // 定义一个新的继承自wxApp的类 class MyApp : public wxApp { public: // 构造函数中对成员变量进行初始化，两个布尔值，用来控制是否显示图片和按钮 MyApp() { m_showImages = true; m_showButtons = false; } // 程序入口函数，创建派生自wxFrame类的对象，初始化窗体 bool OnInit(); void SetShowImages(bool show) { m_showImages = show; } bool ShowImages() const { return m_showImages; } void SetShowButtons(bool show) { m_showButtons = show; } bool ShowButtons() const { return m_showButtons; } private: bool m_showImages, m_showButtons; }; // 声明一个和子项绑定的类，也是实现自定义树形控件的基础 class MyTreeItemData : public wxTreeItemData { public: MyTreeItemData() { textctrl = new wxTextCtrl(); } MyTreeItemData(const wxString& desc) : m_desc(desc) { } MyTreeItemData( wxWindow* parent, wxWindowID id, const wxString& value, wxPoint pt ) { pt.x += 80; pt.y -= 10; textctrl = new wxTextCtrl( parent, id, value, pt, wxSize( 120, 20 ) ); } wxTextCtrl * GetTextCtrl(){ return textctrl; } void ShowInfo(wxTreeCtrl *tree); const wxChar *GetDesc() const { return m_desc.c_str(); } private: wxString m_desc; wxTextCtrl* textctrl; wxComboBox* comboBox; }; class MyTreeCtrl : public wxTreeCtrl { public: enum { TreeCtrlIcon_File, TreeCtrlIcon_FileSelected, TreeCtrlIcon_Folder, TreeCtrlIcon_FolderSelected, TreeCtrlIcon_FolderOpened }; MyTreeCtrl() { } MyTreeCtrl(wxWindow *parent, const wxWindowID id, const wxPoint& pos, const wxSize& size, long style); virtual ~MyTreeCtrl(){}; void OnBeginDrag(wxTreeEvent& event); void OnBeginRDrag(wxTreeEvent& event); void OnEndDrag(wxTreeEvent& event); void OnBeginLabelEdit(wxTreeEvent& event); void OnEndLabelEdit(wxTreeEvent& event); void OnDeleteItem(wxTreeEvent& event); void OnContextMenu(wxContextMenuEvent& event); void OnItemMenu(wxTreeEvent& event); void OnGetInfo(wxTreeEvent& event); void OnSetInfo(wxTreeEvent& event); void OnItemExpanded(wxTreeEvent& event); void OnItemExpanding(wxTreeEvent& event); void OnItemCollapsed(wxTreeEvent& event); void OnItemCollapsing(wxTreeEvent& event); void OnSelChanged(wxTreeEvent& event); void OnSelChanging(wxTreeEvent& event); void OnTreeKeyDown(wxTreeEvent& event); void OnItemActivated(wxTreeEvent& event); void OnItemRClick(wxTreeEvent& event); void OnRMouseDown(wxMouseEvent& event); void OnRMouseUp(wxMouseEvent& event); void OnRMouseDClick(wxMouseEvent& event); void GetItemsRecursively(const wxTreeItemId& idParent, wxTreeItemIdValue cookie = 0); void CreateImageList(int size = 16); void CreateButtonsImageList(int size = 11); void AddTestItemsToTree(size_t numChildren, size_t depth); void DoSortChildren(const wxTreeItemId& item, bool reverse = false) { m_reverseSort = reverse; wxTreeCtrl::SortChildren(item); } void DoEnsureVisible() { if (m_lastItem.IsOk()) EnsureVisible(m_lastItem); } void DoToggleIcon(const wxTreeItemId& item); void ShowMenu(wxTreeItemId id, const wxPoint& pt); int ImageSize(void) const { return m_imageSize; } void SetLastItem(wxTreeItemId id) { m_lastItem = id; } protected: virtual int OnCompareItems(const wxTreeItemId& i1, const wxTreeItemId& i2); // 是否是我们用以几个事件处理程序测试项目？ bool IsTestItem(const wxTreeItemId& item) { // 测试项目是第一个子文件夹：此项目的父节点为根，并且没有前一个兄弟节点。 return GetItemParent(item) == GetRootItem() && !GetPrevSibling(item); } private: void AddItemsRecursively(const wxTreeItemId& idParent, size_t nChildren, size_t depth, size_t folder); void LogEvent(const wxChar *name, const wxTreeEvent& event); int m_imageSize; // 当前图像尺寸 bool m_reverseSort; // flag for OnCompareItems wxTreeItemId m_lastItem, // for OnEnsureVisible() m_draggedItem; // 标示当前被拖动的子项目 // NB: due to an ugly wxMSW hack you _must_ use DECLARE_DYNAMIC_CLASS() // if you want your overloaded OnCompareItems() to be called. // OTOH, if you don't want it you may omit the next line - this will // make default (alphabetical) sorting much faster under wxMSW. DECLARE_DYNAMIC_CLASS(MyTreeCtrl) DECLARE_EVENT_TABLE() }; // 定义一个新的窗体类型 class MyFrame: public wxFrame { public: // 构造和析构函数 MyFrame(const wxString& title, int x, int y, int w, int h);// 标题、左上角坐标，长宽值 virtual ~MyFrame(); // 菜单中调用的函数 void OnQuit(wxCommandEvent& event);// 退出菜单 void OnAbout(wxCommandEvent& event);// 关于菜单 void OnTogButtons(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_HAS_BUTTONS); } void OnTogTwist(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_TWIST_BUTTONS); } void OnTogLines(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_NO_LINES); } void OnTogEdit(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_EDIT_LABELS); } void OnTogHideRoot(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_HIDE_ROOT); } void OnTogRootLines(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_LINES_AT_ROOT); } void OnTogBorder(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_ROW_LINES); } void OnTogFullHighlight(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_FULL_ROW_HIGHLIGHT); } void OnResetStyle(wxCommandEvent& WXUNUSED(event)) { CreateTreeWithDefStyle(); } void OnSetFgColour(wxCommandEvent& event); void OnSetBgColour(wxCommandEvent& event); void OnHighlight(wxCommandEvent& event); void OnDump(wxCommandEvent& event); #ifndef NO_MULTIPLE_SELECTION void OnDumpSelected(wxCommandEvent& event); void OnSelect(wxCommandEvent& event); void OnUnselect(wxCommandEvent& event); void OnToggleSel(wxCommandEvent& event); #endif // NO_MULTIPLE_SELECTION void OnSelectRoot(wxCommandEvent& event); void OnDelete(wxCommandEvent& event); void OnDeleteChildren(wxCommandEvent& event); void OnDeleteAll(wxCommandEvent& event); void OnRecreate(wxCommandEvent& event); void OnToggleButtons(wxCommandEvent& event); void OnToggleImages(wxCommandEvent& event); void OnSetImageSize(wxCommandEvent& event); void OnCollapseAndReset(wxCommandEvent& event); void OnSetBold(wxCommandEvent& WXUNUSED(event)) { DoSetBold(true); } void OnClearBold(wxCommandEvent& WXUNUSED(event)) { DoSetBold(false); } void OnEnsureVisible(wxCommandEvent& event); void OnCount(wxCommandEvent& event); void OnCountRec(wxCommandEvent& event); void OnRename(wxCommandEvent& event); void OnSort(wxCommandEvent& WXUNUSED(event)) { DoSort(); } void OnSortRev(wxCommandEvent& WXUNUSED(event)) { DoSort(true); } void OnAddItem(wxCommandEvent& event); void OnInsertItem(wxCommandEvent& event); void OnIncIndent(wxCommandEvent& event); void OnDecIndent(wxCommandEvent& event); void OnIncSpacing(wxCommandEvent& event); void OnDecSpacing(wxCommandEvent& event); void OnToggleIcon(wxCommandEvent& event); void OnIdle(wxIdleEvent& event); void OnSize(wxSizeEvent& event); private: void TogStyle(int id, long flag); void DoSort(bool reverse = false); void Resize(); void CreateTreeWithDefStyle(); void CreateTree(long style); wxPanel *m_panel; MyTreeCtrl *m_treeCtrl; #if wxUSE_LOG wxTextCtrl *m_textCtrl;// 用做日志输出 #endif // wxUSE_LOG void DoSetBold(bool bold = true); DECLARE_EVENT_TABLE() }; // 菜单和控件中用到的ID enum { TreeTest_Quit = wxID_EXIT, TreeTest_About = wxID_ABOUT, TreeTest_TogButtons = wxID_HIGHEST, TreeTest_TogTwist, TreeTest_TogLines, TreeTest_TogEdit, TreeTest_TogHideRoot, TreeTest_TogRootLines, TreeTest_TogBorder, TreeTest_TogFullHighlight, TreeTest_SetFgColour, TreeTest_SetBgColour, TreeTest_ResetStyle, TreeTest_Highlight, TreeTest_Dump, TreeTest_DumpSelected, TreeTest_Count, TreeTest_CountRec, TreeTest_Sort, TreeTest_SortRev, TreeTest_SetBold, TreeTest_ClearBold, TreeTest_Rename, TreeTest_Delete, TreeTest_DeleteChildren, TreeTest_DeleteAll, TreeTest_Recreate, TreeTest_ToggleImages, TreeTest_ToggleButtons, TreeTest_SetImageSize, TreeTest_ToggleSel, TreeTest_CollapseAndReset, TreeTest_EnsureVisible, TreeTest_AddItem, TreeTest_InsertItem, TreeTest_IncIndent, TreeTest_DecIndent, TreeTest_IncSpacing, TreeTest_DecSpacing, TreeTest_ToggleIcon, TreeTest_Select, TreeTest_Unselect, TreeTest_SelectRoot, TreeTest_Ctrl = 1000 };

wxTreeCtrl的cpp文件，详细见注释：

///////////////////////////////////////////////////////////////////////////// // Name: treetest.cpp // Purpose: wxTreeCtrl sample // Author: Julian Smart // Modified by: // Created: 04/01/98 // RCS-ID: $Id: treetest.cpp 52196 2008-02-29 19:51:05Z VZ $ // Copyright: (c) Julian Smart // Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// // For compilers that support precompilation, includes "wx/wx.h". #include "wx/wxprec.h" #ifndef WX_PRECOMP #include "wx/wx.h" #include "wx/log.h" #endif #include "wx/colordlg.h" #include "wx/numdlg.h" #include "wx/image.h" #include "wx/imaglist.h" #include "wx/treectrl.h" #include "wx/math.h" #ifdef __WIN32__ // 此项不被本地控件所支持 #define NO_VARIABLE_HEIGHT #endif // 声明文件 #include "treetest.h" // 用到的图片资源 #include "icon1.xpm" #include "icon2.xpm" #include "icon3.xpm" #include "icon4.xpm" #include "icon5.xpm" #ifndef __WXMSW__ #include "../sample.xpm" #endif // 验证项目以免给用户造成不必要的麻烦 #define CHECK_ITEM( item ) if ( !item.IsOk() ) { / wxMessageBox(wxT("请首先选择一些项目!"), / wxT("Tree sample 错误提示"), / wxOK | wxICON_EXCLAMATION, / this); / return; / } #define MENU_LINK(name) EVT_MENU(TreeTest_##name, MyFrame::On##name)// 定义此宏，以简化后面的书写 // 事件映射表 BEGIN_EVENT_TABLE(MyFrame, wxFrame) EVT_IDLE(MyFrame::OnIdle) EVT_SIZE(MyFrame::OnSize) MENU_LINK(Quit) // 退出 MENU_LINK(About)// 关于 MENU_LINK(TogButtons) MENU_LINK(TogTwist) MENU_LINK(TogLines) MENU_LINK(TogEdit) MENU_LINK(TogHideRoot) MENU_LINK(TogRootLines) MENU_LINK(TogBorder) MENU_LINK(TogFullHighlight) MENU_LINK(SetFgColour) MENU_LINK(SetBgColour) MENU_LINK(ResetStyle) MENU_LINK(Highlight) MENU_LINK(Dump) #ifndef NO_MULTIPLE_SELECTION MENU_LINK(DumpSelected) MENU_LINK(Select) MENU_LINK(Unselect) MENU_LINK(ToggleSel) #endif // NO_MULTIPLE_SELECTION MENU_LINK(Rename) MENU_LINK(Count) MENU_LINK(CountRec) MENU_LINK(Sort) MENU_LINK(SortRev) MENU_LINK(SetBold) MENU_LINK(ClearBold) MENU_LINK(Delete) MENU_LINK(DeleteChildren) MENU_LINK(DeleteAll) MENU_LINK(Recreate) MENU_LINK(ToggleImages) MENU_LINK(ToggleButtons) MENU_LINK(SetImageSize) MENU_LINK(CollapseAndReset) MENU_LINK(EnsureVisible) MENU_LINK(AddItem) MENU_LINK(InsertItem) MENU_LINK(IncIndent) MENU_LINK(DecIndent) MENU_LINK(IncSpacing) MENU_LINK(DecSpacing) MENU_LINK(ToggleIcon) MENU_LINK(SelectRoot) #undef MENU_LINK END_EVENT_TABLE() #if USE_GENERIC_TREECTRL BEGIN_EVENT_TABLE(MyTreeCtrl, wxGenericTreeCtrl) #else BEGIN_EVENT_TABLE(MyTreeCtrl, wxTreeCtrl) #endif EVT_TREE_BEGIN_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginDrag)// 使用鼠标左键按钮开始拖动时触发的事件 EVT_TREE_BEGIN_RDRAG(TreeTest_Ctrl, MyTreeCtrl::OnBeginRDrag)// 使用鼠标右键按钮开始拖动时触发的事件 EVT_TREE_END_DRAG(TreeTest_Ctrl, MyTreeCtrl::OnEndDrag)// 鼠标左键或者右键拖放结束时触发的事件 EVT_TREE_BEGIN_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnBeginLabelEdit)// 用户刚刚开始编辑子标签的时候触发的事件 EVT_TREE_END_LABEL_EDIT(TreeTest_Ctrl, MyTreeCtrl::OnEndLabelEdit)// 用户结束编辑子标签时触发的事件 EVT_TREE_DELETE_ITEM(TreeTest_Ctrl, MyTreeCtrl::OnDeleteItem)// 某子项被删除的时候产生的事件 #if 0 // 触发闪烁的原因，某个子项的数据被请求的时候产生的事件 EVT_TREE_GET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnGetInfo) #endif EVT_TREE_SET_INFO(TreeTest_Ctrl, MyTreeCtrl::OnSetInfo)// 某个子项数据被设置时产生的事件 EVT_TREE_ITEM_EXPANDED(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanded)// 某个子项被展开时产生的事件 EVT_TREE_ITEM_EXPANDING(TreeTest_Ctrl, MyTreeCtrl::OnItemExpanding)// 某个子项即将被展开时产生的事件 EVT_TREE_ITEM_COLLAPSED(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsed)// 某个子项已经被收缩(合并)时产生的事件 EVT_TREE_ITEM_COLLAPSING(TreeTest_Ctrl, MyTreeCtrl::OnItemCollapsing)// 某个子项正在被收缩(合并)时产生的事件 EVT_TREE_SEL_CHANGED(TreeTest_Ctrl, MyTreeCtrl::OnSelChanged)// 选中的子项发生变化以后(新的子项被选中或者旧的选中项不被选中的时候)产生的事件 EVT_TREE_SEL_CHANGING(TreeTest_Ctrl, MyTreeCtrl::OnSelChanging)// 选中的子项即将发生变化的时候产生，该事件可以被Veto以阻止变化发生 EVT_TREE_KEY_DOWN(TreeTest_Ctrl, MyTreeCtrl::OnTreeKeyDown)// 焦点在树上，检测到有按键按下的时候触发的事件 EVT_TREE_ITEM_ACTIVATED(TreeTest_Ctrl, MyTreeCtrl::OnItemActivated)// 子项目已经被激活时产生，例如：通过鼠标双击或者键盘激活子项目 // 有很多不同的方法处理鼠标右键单击事件... EVT_CONTEXT_MENU(MyTreeCtrl::OnContextMenu) // EVT_TREE_ITEM_MENU is the preferred event for creating context menus // on a tree control, because it includes the point of the click or item, // meaning that no additional placement calculations are required. EVT_TREE_ITEM_MENU(TreeTest_Ctrl, MyTreeCtrl::OnItemMenu)// 无论是通过右击还是使用菜单键，选择项目的上下文菜单已经有请求时触发的事件 EVT_TREE_ITEM_RIGHT_CLICK(TreeTest_Ctrl, MyTreeCtrl::OnItemRClick)// 用户通过按下鼠标右键触发的事件 EVT_RIGHT_DOWN(MyTreeCtrl::OnRMouseDown)// 在子项目中右键按下时触发的事件 EVT_RIGHT_UP(MyTreeCtrl::OnRMouseUp)// 在子项目中右键弹起时触发的事件 EVT_RIGHT_DCLICK(MyTreeCtrl::OnRMouseDClick)// 在子项目中双击右键触发的事件 END_EVENT_TABLE() IMPLEMENT_APP(MyApp) bool MyApp::OnInit() { // 创建一个主窗体 MyFrame *frame = new MyFrame(wxT("wxTreeCtrl 测试"), 50, 50, 450, 600); // 显示窗口 frame->Show(true); SetTopWindow(frame); return true; } // My frame constructor MyFrame::MyFrame(const wxString& title, int x, int y, int w, int h) : wxFrame((wxFrame *)NULL, wxID_ANY, title, wxPoint(x, y), wxSize(w, h)), m_treeCtrl(NULL) #if wxUSE_LOG , m_textCtrl(NULL) #endif // wxUSE_LOG { // This reduces flicker effects - even better would be to define // OnEraseBackground to do nothing. When the tree control's scrollbars are // show or hidden, the frame is sent a background erase event. SetBackgroundColour(wxColour(255, 255, 255)); // 为窗口设置一个图标 SetIcon(wxICON(sample)); #if wxUSE_MENUS // 生成一个菜单栏 wxMenu *file_menu = new wxMenu, // 文件 *style_menu = new wxMenu,// 样式 *tree_menu = new wxMenu, // 树 *item_menu = new wxMenu; // 选项 // 添加文件菜单中的内容 file_menu->Append(TreeTest_About, wxT("关于(&A)...")); // 关于 file_menu->AppendSeparator();// 分隔符 file_menu->Append(TreeTest_Quit, wxT("退出(&X)/tAlt-X"));// 退出 // 添加样式菜单的内容 style_menu->AppendCheckItem(TreeTest_TogButtons, wxT("切换正常按钮(&n)")); style_menu->AppendCheckItem(TreeTest_TogTwist, wxT("Toggle &twister buttons")); style_menu->AppendCheckItem(TreeTest_ToggleButtons, wxT("切换图形按钮(&b)")); style_menu->AppendSeparator(); style_menu->AppendCheckItem(TreeTest_TogLines, wxT("Toggle &connecting lines")); style_menu->AppendCheckItem(TreeTest_TogRootLines, wxT("Toggle &lines at root")); style_menu->AppendCheckItem(TreeTest_TogHideRoot, wxT("Toggle &hidden root")); style_menu->AppendCheckItem(TreeTest_TogBorder, wxT("Toggle &item border")); style_menu->AppendCheckItem(TreeTest_TogFullHighlight, wxT("Toggle &full row highlight")); style_menu->AppendCheckItem(TreeTest_TogEdit, wxT("Toggle &edit mode")); #ifndef NO_MULTIPLE_SELECTION style_menu->AppendCheckItem(TreeTest_ToggleSel, wxT("Toggle &selection mode")); #endif // NO_MULTIPLE_SELECTION style_menu->AppendCheckItem(TreeTest_ToggleImages, wxT("Toggle show ima&ges")); style_menu->Append(TreeTest_SetImageSize, wxT("Set image si&ze...")); style_menu->AppendSeparator(); style_menu->Append(TreeTest_SetFgColour, wxT("Set &foreground colour...")); style_menu->Append(TreeTest_SetBgColour, wxT("Set &background colour...")); style_menu->AppendSeparator(); style_menu->Append(TreeTest_ResetStyle, wxT("&Reset to default/tF10")); tree_menu->Append(TreeTest_Recreate, wxT("&Recreate the tree")); tree_menu->Append(TreeTest_CollapseAndReset, wxT("C&ollapse and reset")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_AddItem, wxT("Append a &new item")); tree_menu->Append(TreeTest_InsertItem, wxT("&Insert a new item")); tree_menu->Append(TreeTest_Delete, wxT("&Delete this item")); tree_menu->Append(TreeTest_DeleteChildren, wxT("Delete &children")); tree_menu->Append(TreeTest_DeleteAll, wxT("Delete &all items")); tree_menu->Append(TreeTest_SelectRoot, wxT("Select root item")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_Count, wxT("Count children of current item")); tree_menu->Append(TreeTest_CountRec, wxT("Recursively count children of current item")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_Sort, wxT("Sort children of current item")); tree_menu->Append(TreeTest_SortRev, wxT("Sort in reversed order")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_EnsureVisible, wxT("Make the last item &visible")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_IncIndent, wxT("Add 5 points to indentation/tAlt-I")); tree_menu->Append(TreeTest_DecIndent, wxT("Reduce indentation by 5 points/tAlt-R")); tree_menu->AppendSeparator(); tree_menu->Append(TreeTest_IncSpacing, wxT("Add 5 points to spacing/tCtrl-I")); tree_menu->Append(TreeTest_DecSpacing, wxT("Reduce spacing by 5 points/tCtrl-R")); item_menu->Append(TreeTest_Dump, wxT("&Dump item children")); item_menu->Append(TreeTest_Rename, wxT("&Rename item...")); item_menu->AppendSeparator(); item_menu->Append(TreeTest_SetBold, wxT("Make item &bold")); item_menu->Append(TreeTest_ClearBold, wxT("Make item ¬ bold")); item_menu->AppendSeparator(); item_menu->Append(TreeTest_ToggleIcon, wxT("Toggle the item's &icon")); #ifndef NO_MULTIPLE_SELECTION item_menu->AppendSeparator(); item_menu->Append(TreeTest_DumpSelected, wxT("Dump selected items/tAlt-D")); item_menu->Append(TreeTest_Select, wxT("Select current item/tAlt-S")); item_menu->Append(TreeTest_Unselect, wxT("Unselect everything/tAlt-U")); #endif // NO_MULTIPLE_SELECTION wxMenuBar *menu_bar = new wxMenuBar; menu_bar->Append(file_menu, wxT("文件(&F)")); menu_bar->Append(style_menu, wxT("样式(&S)")); menu_bar->Append(tree_menu, wxT("树(&T)")); menu_bar->Append(item_menu, wxT("选项(&I)")); SetMenuBar(menu_bar); #endif // wxUSE_MENUS // 创建一个Panel m_panel = new wxPanel(this); #if wxUSE_LOG // 在Panel上创建一个文本框控件，为了作为日志输出之用 m_textCtrl = new wxTextCtrl(m_panel, wxID_ANY, wxT(""), wxDefaultPosition, wxDefaultSize, wxTE_MULTILINE | wxSUNKEN_BORDER); #endif // wxUSE_LOG // 创建一个树形控件 CreateTreeWithDefStyle(); menu_bar->Check(TreeTest_ToggleImages, true); #if wxUSE_STATUSBAR // 创建一个状态栏 CreateStatusBar(2); #endif // wxUSE_STATUSBAR #if wxUSE_LOG #ifdef __WXMOTIF__ // For some reason, we get a memcpy crash in wxLogStream::DoLogStream // on gcc/wxMotif, if we use wxLogTextCtl. Maybe it's just gcc? delete wxLog::SetActiveTarget(new wxLogStderr); #else // 设置一个文本框控件作为日志输出 wxLogTextCtrl *logWindow = new wxLogTextCtrl(m_textCtrl); delete wxLog::SetActiveTarget(logWindow); #endif #endif // wxUSE_LOG } MyFrame::~MyFrame() { #if wxUSE_LOG delete wxLog::SetActiveTarget(NULL); #endif // wxUSE_LOG } // 创建一个树型控件 void MyFrame::CreateTreeWithDefStyle() { // 树的样式定义 long style = wxTR_DEFAULT_STYLE | #ifndef NO_VARIABLE_HEIGHT wxTR_HAS_VARIABLE_ROW_HEIGHT | #endif wxTR_EDIT_LABELS; // 按照指定样式创建这棵树 CreateTree(style | wxSUNKEN_BORDER); // as we don't know what wxTR_DEFAULT_STYLE could contain, test for // everything wxMenuBar *mbar = GetMenuBar(); mbar->Check(TreeTest_TogButtons, (style & wxTR_HAS_BUTTONS) != 0); mbar->Check(TreeTest_TogButtons, (style & wxTR_TWIST_BUTTONS) != 0); mbar->Check(TreeTest_TogLines, (style & wxTR_NO_LINES) == 0); mbar->Check(TreeTest_TogRootLines, (style & wxTR_LINES_AT_ROOT) != 0); mbar->Check(TreeTest_TogHideRoot, (style & wxTR_HIDE_ROOT) != 0); mbar->Check(TreeTest_TogEdit, (style & wxTR_EDIT_LABELS) != 0); mbar->Check(TreeTest_TogBorder, (style & wxTR_ROW_LINES) != 0); mbar->Check(TreeTest_TogFullHighlight, (style & wxTR_FULL_ROW_HIGHLIGHT) != 0); } // 按照指定的样式创建一棵树 void MyFrame::CreateTree(long style) { m_treeCtrl = new MyTreeCtrl(m_panel, TreeTest_Ctrl, wxDefaultPosition, wxDefaultSize, style); GetMenuBar()->Enable(TreeTest_SelectRoot, !(style & wxTR_HIDE_ROOT)); Resize(); } void MyFrame::TogStyle(int id, long flag) { long style = m_treeCtrl->GetWindowStyle() ^ flag; // most treectrl styles can't be changed on the fly using the native // control and the tree must be recreated #ifndef __WXMSW__ m_treeCtrl->SetWindowStyle(style); #else // MSW delete m_treeCtrl; CreateTree(style); #endif // !MSW/MSW GetMenuBar()->Check(id, (style & flag) != 0); } void MyFrame::OnIdle(wxIdleEvent& event) { #if wxUSE_STATUSBAR if ( m_treeCtrl ) { wxTreeItemId idRoot = m_treeCtrl->GetRootItem(); wxString status; if (idRoot.IsOk()) { wxTreeItemId idLast = m_treeCtrl->GetLastChild(idRoot); status = wxString::Format( _T("Root/last item is %svisible/%svisible"), m_treeCtrl->IsVisible(idRoot) ? _T("") : _T("not "), idLast.IsOk() && m_treeCtrl->IsVisible(idLast) ? _T("") : _T("not ")); } else status = _T("没有根项目"); SetStatusText(status, 1); } #endif // wxUSE_STATUSBAR event.Skip(); } void MyFrame::OnSize(wxSizeEvent& event) { if ( m_treeCtrl #if wxUSE_LOG && m_textCtrl #endif // wxUSE_LOG ) { Resize(); } event.Skip(); } void MyFrame::Resize() { wxSize size = GetClientSize(); m_treeCtrl->SetSize(0, 0, size.x, size.y #if !wxUSE_LOG ); #else *2/3); m_textCtrl->SetSize(0, 2*size.y/3, size.x, size.y/3); #endif } void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event)) { Close(true); } void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event)) { wxMessageBox(wxT("Tree test sample/n") wxT("(c) Julian Smart 1997, Vadim Zeitlin 1998"), wxT("About tree test"), wxOK | wxICON_INFORMATION, this); } void MyFrame::OnRename(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); // old code - now we edit in place #if 0 static wxString s_text; s_text = wxGetTextFromUser(wxT("New name: "), wxT("Tree sample question"), s_text, this); if ( !s_text.empty() ) { m_treeCtrl->SetItemText(item, s_text); } #endif // 0 // TODO demonstrate creating a custom edit control... (void)m_treeCtrl->EditLabel(item); } void MyFrame::OnCount(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); int i = m_treeCtrl->GetChildrenCount( item, false ); wxLogMessage(wxT("%d children"), i); } void MyFrame::OnCountRec(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); int i = m_treeCtrl->GetChildrenCount( item ); wxLogMessage(wxT("%d children"), i); } void MyFrame::DoSort(bool reverse) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); m_treeCtrl->DoSortChildren(item, reverse); } void MyFrame::OnHighlight(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId id = m_treeCtrl->GetSelection(); CHECK_ITEM( id ); wxRect r; if ( !m_treeCtrl->GetBoundingRect(id, r, true /* text, not full row */) ) { wxLogMessage(_T("Failed to get bounding item rect")); return; } wxClientDC dc(m_treeCtrl); dc.SetBrush(*wxRED); dc.SetPen(*wxTRANSPARENT_PEN); dc.DrawRectangle(r); m_treeCtrl->Update(); } void MyFrame::OnDump(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId root = m_treeCtrl->GetSelection(); CHECK_ITEM( root ); m_treeCtrl->GetItemsRecursively(root); } #ifndef NO_MULTIPLE_SELECTION void MyFrame::OnToggleSel(wxCommandEvent& event) { TogStyle(event.GetId(), wxTR_MULTIPLE); } void MyFrame::OnDumpSelected(wxCommandEvent& WXUNUSED(event)) { wxArrayTreeItemIds array; size_t count = m_treeCtrl->GetSelections(array); wxLogMessage(wxT("%u items selected"), unsigned(count)); for ( size_t n = 0; n < count; n++ ) { wxLogMessage(wxT("/t%s"), m_treeCtrl->GetItemText(array.Item(n)).c_str()); } } void MyFrame::OnSelect(wxCommandEvent& WXUNUSED(event)) { m_treeCtrl->SelectItem(m_treeCtrl->GetSelection()); } void MyFrame::OnSelectRoot(wxCommandEvent& WXUNUSED(event)) { if ( !m_treeCtrl->HasFlag(wxTR_HIDE_ROOT) ) m_treeCtrl->SelectItem(m_treeCtrl->GetRootItem()); } void MyFrame::OnUnselect(wxCommandEvent& WXUNUSED(event)) { m_treeCtrl->UnselectAll(); } #endif // NO_MULTIPLE_SELECTION void MyFrame::DoSetBold(bool bold) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); m_treeCtrl->SetItemBold(item, bold); } void MyFrame::OnDelete(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); m_treeCtrl->Delete(item); } void MyFrame::OnDeleteChildren(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); m_treeCtrl->DeleteChildren(item); } void MyFrame::OnDeleteAll(wxCommandEvent& WXUNUSED(event)) { m_treeCtrl->DeleteAllItems(); } void MyFrame::OnRecreate(wxCommandEvent& event) { OnDeleteAll(event); m_treeCtrl->AddTestItemsToTree(5, 2); } void MyFrame::OnSetImageSize(wxCommandEvent& WXUNUSED(event)) { int size = wxGetNumberFromUser(wxT("Enter the size for the images to use"), wxT("Size: "), wxT("TreeCtrl sample"), m_treeCtrl->ImageSize()); if ( size == -1 ) return; m_treeCtrl->CreateImageList(size); wxGetApp().SetShowImages(true); } void MyFrame::OnToggleImages(wxCommandEvent& WXUNUSED(event)) { if ( wxGetApp().ShowImages() ) { m_treeCtrl->CreateImageList(-1); wxGetApp().SetShowImages(false); } else { m_treeCtrl->CreateImageList(0); wxGetApp().SetShowImages(true); } } void MyFrame::OnToggleButtons(wxCommandEvent& WXUNUSED(event)) { #if USE_GENERIC_TREECTRL || !defined(__WXMSW__) if ( wxGetApp().ShowButtons() ) { m_treeCtrl->CreateButtonsImageList(-1); wxGetApp().SetShowButtons(false); } else { m_treeCtrl->CreateButtonsImageList(15); wxGetApp().SetShowButtons(true); } #endif } void MyFrame::OnCollapseAndReset(wxCommandEvent& WXUNUSED(event)) { m_treeCtrl->CollapseAndReset(m_treeCtrl->GetRootItem()); } void MyFrame::OnEnsureVisible(wxCommandEvent& WXUNUSED(event)) { m_treeCtrl->DoEnsureVisible(); } void MyFrame::OnInsertItem(wxCommandEvent& WXUNUSED(event)) { int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_File : -1; m_treeCtrl->InsertItem(m_treeCtrl->GetRootItem(), image, wxT("2nd item")); } void MyFrame::OnAddItem(wxCommandEvent& WXUNUSED(event)) { static int s_num = 0; wxString text; text.Printf(wxT("Item #%d"), ++s_num); m_treeCtrl->AppendItem(m_treeCtrl->GetRootItem(), text /*, MyTreeCtrl::TreeCtrlIcon_File */ ); } void MyFrame::OnIncIndent(wxCommandEvent& WXUNUSED(event)) { unsigned int indent = m_treeCtrl->GetIndent(); if (indent < 100) m_treeCtrl->SetIndent( indent+5 ); } void MyFrame::OnDecIndent(wxCommandEvent& WXUNUSED(event)) { unsigned int indent = m_treeCtrl->GetIndent(); if (indent > 10) m_treeCtrl->SetIndent( indent-5 ); } void MyFrame::OnIncSpacing(wxCommandEvent& WXUNUSED(event)) { unsigned int indent = m_treeCtrl->GetSpacing(); if (indent < 100) m_treeCtrl->SetSpacing( indent+5 ); } void MyFrame::OnDecSpacing(wxCommandEvent& WXUNUSED(event)) { unsigned int indent = m_treeCtrl->GetSpacing(); if (indent > 10) m_treeCtrl->SetSpacing( indent-5 ); } void MyFrame::OnToggleIcon(wxCommandEvent& WXUNUSED(event)) { wxTreeItemId item = m_treeCtrl->GetSelection(); CHECK_ITEM( item ); m_treeCtrl->DoToggleIcon(item); } void MyFrame::OnSetFgColour(wxCommandEvent& WXUNUSED(event)) { wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetForegroundColour()); if ( col.Ok() ) m_treeCtrl->SetForegroundColour(col); } void MyFrame::OnSetBgColour(wxCommandEvent& WXUNUSED(event)) { wxColour col = wxGetColourFromUser(this, m_treeCtrl->GetBackgroundColour()); if ( col.Ok() ) m_treeCtrl->SetBackgroundColour(col); } // MyTreeCtrl implementation #if USE_GENERIC_TREECTRL IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxGenericTreeCtrl) #else IMPLEMENT_DYNAMIC_CLASS(MyTreeCtrl, wxTreeCtrl) #endif MyTreeCtrl::MyTreeCtrl(wxWindow *parent, const wxWindowID id, const wxPoint& pos, const wxSize& size, long style) : wxTreeCtrl(parent, id, pos, size, style) { m_reverseSort = false; CreateImageList(); // 在数中添加一些项目 AddTestItemsToTree(5, 2); } void MyTreeCtrl::CreateImageList(int size) { if ( size == -1 ) { SetImageList(NULL); return; } if ( size == 0 ) size = m_imageSize; else m_imageSize = size; // Make an image list containing small icons wxImageList *images = new wxImageList(size, size, true); // should correspond to TreeCtrlIcon_xxx enum wxBusyCursor wait; wxIcon icons[5]; icons[0] = wxIcon(icon1_xpm); icons[1] = wxIcon(icon2_xpm); icons[2] = wxIcon(icon3_xpm); icons[3] = wxIcon(icon4_xpm); icons[4] = wxIcon(icon5_xpm); int sizeOrig = icons[0].GetWidth(); for ( size_t i = 0; i < WXSIZEOF(icons); i++ ) { if ( size == sizeOrig ) { images->Add(icons[i]); } else { images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size))); } } AssignImageList(images); } #if USE_GENERIC_TREECTRL || !defined(__WXMSW__) void MyTreeCtrl::CreateButtonsImageList(int size) { if ( size == -1 ) { SetButtonsImageList(NULL); return; } // Make an image list containing small icons wxImageList *images = new wxImageList(size, size, true); // should correspond to TreeCtrlIcon_xxx enum wxBusyCursor wait; wxIcon icons[4]; icons[0] = wxIcon(icon3_xpm); // closed icons[1] = wxIcon(icon3_xpm); // closed, selected icons[2] = wxIcon(icon5_xpm); // open icons[3] = wxIcon(icon5_xpm); // open, selected for ( size_t i = 0; i < WXSIZEOF(icons); i++ ) { int sizeOrig = icons[i].GetWidth(); if ( size == sizeOrig ) { images->Add(icons[i]); } else { images->Add(wxBitmap(wxBitmap(icons[i]).ConvertToImage().Rescale(size, size))); } } AssignButtonsImageList(images); #else void MyTreeCtrl::CreateButtonsImageList(int WXUNUSED(size)) { #endif } int MyTreeCtrl::OnCompareItems(const wxTreeItemId& item1, const wxTreeItemId& item2) { if ( m_reverseSort ) { // just exchange 1st and 2nd items return wxTreeCtrl::OnCompareItems(item2, item1); } else { return wxTreeCtrl::OnCompareItems(item1, item2); } } // 递归的创建叶子节点 void MyTreeCtrl::AddItemsRecursively(const wxTreeItemId& idParent, size_t numChildren, size_t depth, size_t folder) { if ( depth > 0 ) { bool hasChildren = depth > 1; wxString str; for ( size_t n = 0; n < numChildren; n++ ) { // at depth 1 elements won't have any more children if ( hasChildren ) str.Printf(wxT("%s child %u"), wxT("Folder"), unsigned(n + 1)); else str.Printf(wxT("%s child %u.%u"), wxT("File"), unsigned(folder), unsigned(n + 1)); // here we pass to AppendItem() normal and selected item images (we // suppose that selected image follows the normal one in the enum) int image, imageSel; if ( wxGetApp().ShowImages() ) { image = depth == 1 ? TreeCtrlIcon_File : TreeCtrlIcon_Folder; imageSel = image + 1; } else { image = imageSel = -1; } wxTreeItemId id; if ( 1 == depth ) { id = AppendItem(idParent, str, image, imageSel, new MyTreeItemData()); } else { id = AppendItem(idParent, str, image, imageSel, new MyTreeItemData(str)); } // and now we also set the expanded one (only for the folders) if ( hasChildren && wxGetApp().ShowImages() ) { SetItemImage(id, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded); } // remember the last child for OnEnsureVisible() if ( !hasChildren && n == numChildren - 1 ) { m_lastItem = id; } AddItemsRecursively(id, numChildren, depth - 1, n + 1); } } //else: done! } void MyTreeCtrl::AddTestItemsToTree(size_t numChildren, size_t depth) { int image = wxGetApp().ShowImages() ? MyTreeCtrl::TreeCtrlIcon_Folder : -1; // 添加一个根节点 wxTreeItemId rootId = AddRoot(wxT("根"), image, image, new MyTreeItemData(wxT("根节点"))); if ( !HasFlag(wxTR_HIDE_ROOT) && image != -1 ) { SetItemImage(rootId, TreeCtrlIcon_FolderOpened, wxTreeItemIcon_Expanded); } // 递归的添加一些子节点 AddItemsRecursively(rootId, numChildren, depth, 0); // 为了测试，设置一些颜色和字体 if ( !HasFlag(wxTR_HIDE_ROOT) ) SetItemFont(rootId, *wxITALIC_FONT);// 设置根节点的字体类型 wxTreeItemIdValue cookie;// 定义一个wxTreeItemIdValue类型的变量 wxTreeItemId id = GetFirstChild(rootId, cookie);// 取得rootId节点下对应的第一个孩子的id SetItemTextColour(id, *wxBLUE);// 将其字体颜色设置为蓝色 id = GetNextChild(rootId, cookie); id = GetNextChild(rootId, cookie); SetItemTextColour(id, *wxRED);// 设置字体颜色为红色 SetItemBackgroundColour(id, *wxLIGHT_GREY);// 设置背景色为灰色 } // 递归的取得项目 void MyTreeCtrl::GetItemsRecursively(const wxTreeItemId& idParent, wxTreeItemIdValue cookie) { wxTreeItemId id; if ( !cookie ) id = GetFirstChild(idParent, cookie); else id = GetNextChild(idParent, cookie); if ( !id.IsOk() ) return; wxString text = GetItemText(id); wxLogMessage(text); if (ItemHasChildren(id)) GetItemsRecursively(id); GetItemsRecursively(idParent, cookie); } void MyTreeCtrl::DoToggleIcon(const wxTreeItemId& item) { int image = (GetItemImage(item) == TreeCtrlIcon_Folder) ? TreeCtrlIcon_File : TreeCtrlIcon_Folder; SetItemImage(item, image, wxTreeItemIcon_Normal); image = (GetItemImage(item) == TreeCtrlIcon_FolderSelected) ? TreeCtrlIcon_FileSelected : TreeCtrlIcon_FolderSelected; SetItemImage(item, image, wxTreeItemIcon_Selected); } void MyTreeCtrl::LogEvent(const wxChar *name, const wxTreeEvent& event) { wxTreeItemId item = event.GetItem(); wxString text; if ( item.IsOk() ) text << _T('"') << GetItemText(item).c_str() << _T('"'); else text = _T("无效的项目！"); wxLogMessage(wxT("%s(%s)"), name, text.c_str()); } // 避免重复 #define TREE_EVENT_HANDLER(name) / void MyTreeCtrl::name(wxTreeEvent& event) / { / LogEvent(_T(#name), event); / SetLastItem(wxTreeItemId()); / event.Skip(); / } TREE_EVENT_HANDLER(OnBeginRDrag) // 使用鼠标右键按钮开始拖动时触发的事件 TREE_EVENT_HANDLER(OnDeleteItem) // 某子项被删除的时候产生的事件 TREE_EVENT_HANDLER(OnGetInfo) // 触发闪烁的原因，某个子项的数据被请求的时候产生的事件 TREE_EVENT_HANDLER(OnSetInfo) // 某个子项数据被设置时产生的事件 TREE_EVENT_HANDLER(OnItemExpanded) // 某个子项被展开时产生的事件 //TREE_EVENT_HANDLER(OnItemExpanding) // 某个子项即将被展开时产生的事件 TREE_EVENT_HANDLER(OnItemCollapsed) // 某个子项已经被收缩(合并)时产生的事件 TREE_EVENT_HANDLER(OnSelChanged) // 选中的子项发生变化以后(新的子项被选中或者旧的选中项不被选中的时候)产生的事件 TREE_EVENT_HANDLER(OnSelChanging) // 选中的子项即将发生变化的时候产生，该事件可以被Veto以阻止变化发生 #undef TREE_EVENT_HANDLER void MyTreeCtrl::OnItemExpanding(wxTreeEvent& event) { // 显示一些有关此项目的信息 wxTreeItemId itemId = event.GetItem();// 取得本项目的Id if ( IsTestItem(itemId) ) { wxTreeItemIdValue cookie; int i = 14; wxTreeItemId itemId_child = GetFirstChild( itemId, cookie ); MyTreeItemData *item = (MyTreeItemData *)GetItemData( itemId_child );// 取得与此项目相关的信息 if ( !(item->GetTextCtrl()) ) { MyTreeItemData *itemdata = new MyTreeItemData(); SetItemData( itemId_child, itemdata); while ( itemId_child = GetNextChild( itemId, cookie ) ) { SetItemData( itemId_child, itemdata ); } } else { item->GetTextCtrl()->Create( this,wxID_ANY, _( "test" ), wxPoint( 150, 18 ), wxSize( 120, 15 ) ); while ( itemId_child = GetNextChild( itemId, cookie ) ) { item = (MyTreeItemData *)GetItemData( itemId_child ); item->GetTextCtrl()->Create( this,wxID_ANY, _( "test" ),wxPoint( 150, 20 + i ), wxSize( 120, 15 ) ); i += 20; } } } //wxPoint clientpt = event.GetPoint(); //MyTreeItemData *items = new MyTreeItemData( this, wxID_ANY, wxT( "" ), clientpt ); //items->SetId( itemId ); //if ( item != NULL ) //{ // item->ShowInfo(this); //} //event.Skip(); } void LogKeyEvent(const wxChar *name, const wxKeyEvent& event) { wxString key; long keycode = event.GetKeyCode(); { switch ( keycode ) { case WXK_BACK: key = wxT("BACK"); break; case WXK_TAB: key = wxT("TAB"); break; case WXK_RETURN: key = wxT("RETURN"); break; case WXK_ESCAPE: key = wxT("ESCAPE"); break; case WXK_SPACE: key = wxT("SPACE"); break; case WXK_DELETE: key = wxT("DELETE"); break; case WXK_START: key = wxT("START"); break; case WXK_LBUTTON: key = wxT("LBUTTON"); break; case WXK_RBUTTON: key = wxT("RBUTTON"); break; case WXK_CANCEL: key = wxT("CANCEL"); break; case WXK_MBUTTON: key = wxT("MBUTTON"); break; case WXK_CLEAR: key = wxT("CLEAR"); break; case WXK_SHIFT: key = wxT("SHIFT"); break; case WXK_ALT: key = wxT("ALT"); break; case WXK_CONTROL: key = wxT("CONTROL"); break; case WXK_MENU: key = wxT("MENU"); break; case WXK_PAUSE: key = wxT("PAUSE"); break; case WXK_CAPITAL: key = wxT("CAPITAL"); break; case WXK_END: key = wxT("END"); break; case WXK_HOME: key = wxT("HOME"); break; case WXK_LEFT: key = wxT("LEFT"); break; case WXK_UP: key = wxT("UP"); break; case WXK_RIGHT: key = wxT("RIGHT"); break; case WXK_DOWN: key = wxT("DOWN"); break; case WXK_SELECT: key = wxT("SELECT"); break; case WXK_PRINT: key = wxT("PRINT"); break; case WXK_EXECUTE: key = wxT("EXECUTE"); break; case WXK_SNAPSHOT: key = wxT("SNAPSHOT"); break; case WXK_INSERT: key = wxT("INSERT"); break; case WXK_HELP: key = wxT("HELP"); break; case WXK_NUMPAD0: key = wxT("NUMPAD0"); break; case WXK_NUMPAD1: key = wxT("NUMPAD1"); break; case WXK_NUMPAD2: key = wxT("NUMPAD2"); break; case WXK_NUMPAD3: key = wxT("NUMPAD3"); break; case WXK_NUMPAD4: key = wxT("NUMPAD4"); break; case WXK_NUMPAD5: key = wxT("NUMPAD5"); break; case WXK_NUMPAD6: key = wxT("NUMPAD6"); break; case WXK_NUMPAD7: key = wxT("NUMPAD7"); break; case WXK_NUMPAD8: key = wxT("NUMPAD8"); break; case WXK_NUMPAD9: key = wxT("NUMPAD9"); break; case WXK_MULTIPLY: key = wxT("MULTIPLY"); break; case WXK_ADD: key = wxT("ADD"); break; case WXK_SEPARATOR: key = wxT("SEPARATOR"); break; case WXK_SUBTRACT: key = wxT("SUBTRACT"); break; case WXK_DECIMAL: key = wxT("DECIMAL"); break; case WXK_DIVIDE: key = wxT("DIVIDE"); break; case WXK_F1: key = wxT("F1"); break; case WXK_F2: key = wxT("F2"); break; case WXK_F3: key = wxT("F3"); break; case WXK_F4: key = wxT("F4"); break; case WXK_F5: key = wxT("F5"); break; case WXK_F6: key = wxT("F6"); break; case WXK_F7: key = wxT("F7"); break; case WXK_F8: key = wxT("F8"); break; case WXK_F9: key = wxT("F9"); break; case WXK_F10: key = wxT("F10"); break; case WXK_F11: key = wxT("F11"); break; case WXK_F12: key = wxT("F12"); break; case WXK_F13: key = wxT("F13"); break; case WXK_F14: key = wxT("F14"); break; case WXK_F15: key = wxT("F15"); break; case WXK_F16: key = wxT("F16"); break; case WXK_F17: key = wxT("F17"); break; case WXK_F18: key = wxT("F18"); break; case WXK_F19: key = wxT("F19"); break; case WXK_F20: key = wxT("F20"); break; case WXK_F21: key = wxT("F21"); break; case WXK_F22: key = wxT("F22"); break; case WXK_F23: key = wxT("F23"); break; case WXK_F24: key = wxT("F24"); break; case WXK_NUMLOCK: key = wxT("NUMLOCK"); break; case WXK_SCROLL: key = wxT("SCROLL"); break; case WXK_PAGEUP: key = wxT("PAGEUP"); break; case WXK_PAGEDOWN: key = wxT("PAGEDOWN"); break; case WXK_NUMPAD_SPACE: key = wxT("NUMPAD_SPACE"); break; case WXK_NUMPAD_TAB: key = wxT("NUMPAD_TAB"); break; case WXK_NUMPAD_ENTER: key = wxT("NUMPAD_ENTER"); break; case WXK_NUMPAD_F1: key = wxT("NUMPAD_F1"); break; case WXK_NUMPAD_F2: key = wxT("NUMPAD_F2"); break; case WXK_NUMPAD_F3: key = wxT("NUMPAD_F3"); break; case WXK_NUMPAD_F4: key = wxT("NUMPAD_F4"); break; case WXK_NUMPAD_HOME: key = wxT("NUMPAD_HOME"); break; case WXK_NUMPAD_LEFT: key = wxT("NUMPAD_LEFT"); break; case WXK_NUMPAD_UP: key = wxT("NUMPAD_UP"); break; case WXK_NUMPAD_RIGHT: key = wxT("NUMPAD_RIGHT"); break; case WXK_NUMPAD_DOWN: key = wxT("NUMPAD_DOWN"); break; case WXK_NUMPAD_PAGEUP: key = wxT("NUMPAD_PAGEUP"); break; case WXK_NUMPAD_PAGEDOWN: key = wxT("NUMPAD_PAGEDOWN"); break; case WXK_NUMPAD_END: key = wxT("NUMPAD_END"); break; case WXK_NUMPAD_BEGIN: key = wxT("NUMPAD_BEGIN"); break; case WXK_NUMPAD_INSERT: key = wxT("NUMPAD_INSERT"); break; case WXK_NUMPAD_DELETE: key = wxT("NUMPAD_DELETE"); break; case WXK_NUMPAD_EQUAL: key = wxT("NUMPAD_EQUAL"); break; case WXK_NUMPAD_MULTIPLY: key = wxT("NUMPAD_MULTIPLY"); break; case WXK_NUMPAD_ADD: key = wxT("NUMPAD_ADD"); break; case WXK_NUMPAD_SEPARATOR: key = wxT("NUMPAD_SEPARATOR"); break; case WXK_NUMPAD_SUBTRACT: key = wxT("NUMPAD_SUBTRACT"); break; case WXK_NUMPAD_DECIMAL: key = wxT("NUMPAD_DECIMAL"); break; default: { if ( keycode < 128 && wxIsprint((int)keycode) ) key.Printf(wxT("'%c'"), (char)keycode); else if ( keycode > 0 && keycode < 27 ) key.Printf(_("Ctrl-%c"), wxT('A') + keycode - 1); else key.Printf(wxT("unknown (%ld)"), keycode); } } } wxLogMessage( wxT("%s event: %s (flags = %c%c%c%c)"), name, key.c_str(), event.ControlDown() ? wxT('C') : wxT('-'), event.AltDown() ? wxT('A') : wxT('-'), event.ShiftDown() ? wxT('S') : wxT('-'), event.MetaDown() ? wxT('M') : wxT('-')); } void MyTreeCtrl::OnTreeKeyDown(wxTreeEvent& event) { LogKeyEvent(wxT("Tree key down "), event.GetKeyEvent()); event.Skip(); } // 使用鼠标左键按钮开始拖动时触发的事件 void MyTreeCtrl::OnBeginDrag(wxTreeEvent& event) { // 检测此项是否可以被拖动，条件：此项目不是根节点时可以被拖动 if ( event.GetItem() != GetRootItem() ) { m_draggedItem = event.GetItem();// 保存当前鼠标拖动的子项目 wxPoint clientpt = event.GetPoint();// 取得当前鼠标的坐标值 wxPoint screenpt = ClientToScreen(clientpt);// 转化为屏幕坐标 wxLogMessage(wxT("OnBeginDrag: 在屏幕坐标 (%i,%i)处，开始拖动 %s。"), screenpt.x, screenpt.y, GetItemText(m_draggedItem).c_str()); event.Allow(); // 剩余事件默认处理 } else { wxLogMessage(wxT("OnBeginDrag: 此项目是不能被拖动的。")); } } // 鼠标左键或者右键拖放结束时触发的事件 void MyTreeCtrl::OnEndDrag(wxTreeEvent& event) { wxTreeItemId itemSrc = m_draggedItem,// 取得上一次拖放的子项目 itemDst = event.GetItem();// 取得本次的子项目 m_draggedItem = (wxTreeItemId)0l;// 将上次的子项目置为空 // 将子项目拷到什么地方? // 条件：拖放位置有效并且目标项目是叶子节点 if ( itemDst.IsOk() && !ItemHasChildren(itemDst) ) { // 复制给父节点 itemDst = GetItemParent(itemDst); } // 拖放位置无效 if ( !itemDst.IsOk() ) { wxLogMessage(wxT("OnEndDrag: 不能拖放到这里！")); return; } wxString text = GetItemText(itemSrc);// 取得源节点的名称 wxLogMessage(wxT("OnEndDrag: 将'%s' 拷贝到 '%s'."), text.c_str(), GetItemText(itemDst).c_str()); // just do append here - we could also insert it just before/after the item // on which it was dropped, but this requires slightly more work... we also // completely ignore the client data and icon of the old item but could // copy them as well. // // 最终我们在此仅仅拷贝一个项目，当然如果拖动一个文件夹， // 我们可以拷贝整个子树 int image = wxGetApp().ShowImages() ? TreeCtrlIcon_File : -1;// 判断是否需要为复制的子项添加图标 AppendItem(itemDst, text, image);// 将此项显示出来 } // 用户刚刚开始编辑子标签的时候触发的事件 void MyTreeCtrl::OnBeginLabelEdit(wxTreeEvent& event) { wxLogMessage(wxT("OnBeginLabelEdit")); // 为了测试，避免此项目被编辑 wxTreeItemId itemId = event.GetItem(); if ( IsTestItem(itemId) ) { wxMessageBox(wxT("你不能编辑此项目。")); event.Veto();// 使当前测试无效 } else if ( itemId == GetRootItem() ) { // 测试一个正在被编辑的文本，作为临时显示之用。 SetItemText(itemId, _T("正在编辑root...")); } } // 用户结束编辑子标签时触发的事件 void MyTreeCtrl::OnEndLabelEdit(wxTreeEvent& event) { wxLogMessage(wxT("OnEndLabelEdit")); // 在标签中不允许其他任何不可接受的字符输入 if ( !event.GetLabel().IsWord() ) { wxMessageBox(wxT("新标签仅仅允许一个单词。")); // 使此次更改失效 event.Veto(); } } // 某个子项正在被收缩(合并)时产生的事件 void MyTreeCtrl::OnItemCollapsing(wxTreeEvent& event) { wxLogMessage(wxT("OnItemCollapsing")); // 为了测试，阻止用户收缩第一个子文件夹 wxTreeItemId itemId = event.GetItem(); MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);// 取得与此项目相关的信息 if ( IsTestItem(itemId) ) { wxTreeItemIdValue cookie; wxTreeItemId itemId_child = GetFirstChild( itemId, cookie ); MyTreeItemData *item = (MyTreeItemData *)GetItemData( itemId_child );// 取得与此项目相关的信息 if ( item->GetTextCtrl() ) { delete item->GetTextCtrl(); } while ( itemId_child = GetNextChild( itemId, cookie ) ) { item = (MyTreeItemData *)GetItemData( itemId_child ); if ( item->GetTextCtrl() ) { delete item->GetTextCtrl(); } } } } // 子项目已经被激活时产生，例如：通过鼠标双击或者键盘激活子项目 void MyTreeCtrl::OnItemActivated(wxTreeEvent& event) { // 显示一些有关此项目的信息 wxTreeItemId itemId = event.GetItem();// 取得本项目的Id MyTreeItemData *item = (MyTreeItemData *)GetItemData(itemId);// 取得与此项目相关的信息 wxPoint clientpt = event.GetPoint(); /*MyTreeItemData *items = new MyTreeItemData( this, wxID_ANY, wxT( "" ), clientpt );*/ MyTreeItemData *items = new MyTreeItemData(); items->SetId( itemId ); AppendItem(items, _("Text"), -1);// 将此项显示出来 items->GetTextCtrl()->Create( this, wxID_ANY, wxT(""), clientpt ); if ( item != NULL ) { item->ShowInfo(this); } wxLogMessage(wxT("OnItemActivated")); } // 无论是通过右击还是使用菜单键，选择项目的上下文菜单已经有请求时触发的事件 void MyTreeCtrl::OnItemMenu(wxTreeEvent& event) { wxTreeItemId itemId = event.GetItem(); MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId) : NULL; wxPoint clientpt = event.GetPoint(); wxPoint screenpt = ClientToScreen(clientpt); wxLogMessage(wxT("OnItemMenu for 子项 /"%s/" 在屏幕上的坐标为 (%i, %i)"), item ? item->GetDesc() : _T(""), screenpt.x, screenpt.y); // 显示弹出式菜单 ShowMenu(itemId, clientpt); event.Skip(); } void MyTreeCtrl::OnContextMenu(wxContextMenuEvent& event) { wxPoint pt = event.GetPosition(); wxLogMessage(wxT("OnContextMenu 在屏幕上的坐标为 (%i, %i)"), pt.x, pt.y); } void MyTreeCtrl::ShowMenu(wxTreeItemId id, const wxPoint& pt) { wxString title; // 菜单标题 if ( id.IsOk() )// 菜单有效则显示标题 { title << wxT("Menu for ") << GetItemText(id); } else { title = wxT("Menu for no particular item"); } #if wxUSE_MENUS wxMenu menu(title); menu.Append(TreeTest_About, wxT("关于(&A)...")); menu.AppendSeparator(); menu.Append(TreeTest_Highlight, wxT("加亮显示项目(&H)")); menu.Append(TreeTest_Dump, wxT("倾倒(&D)")); PopupMenu(&menu, pt);// 显示弹出菜单 #endif // wxUSE_MENUS } // 用户通过按下鼠标右键触发的事件 void MyTreeCtrl::OnItemRClick(wxTreeEvent& event) { wxTreeItemId itemId = event.GetItem(); MyTreeItemData *item = itemId.IsOk() ? (MyTreeItemData *)GetItemData(itemId) : NULL; wxLogMessage(wxT("在项目 /"%s/" 上单击了鼠标右键！"), item ? item->GetDesc() : _T("")); event.Skip(); } // 在子项目中右键按下时触发的事件 void MyTreeCtrl::OnRMouseDown(wxMouseEvent& event) { wxLogMessage(wxT("鼠标右键按下！")); event.Skip(); } // 在子项目中右键弹起时触发的事件 void MyTreeCtrl::OnRMouseUp(wxMouseEvent& event) { wxLogMessage(wxT("鼠标右键弹起！")); event.Skip(); } // 在子项目中双击右键触发的事件 void MyTreeCtrl::OnRMouseDClick(wxMouseEvent& event) { wxTreeItemId id = HitTest(event.GetPosition()); if ( !id ) wxLogMessage(wxT("鼠标下无任何项目。")); else { MyTreeItemData *item = (MyTreeItemData *)GetItemData(id); if ( item ) { wxMessageBox( wxT( "右键双击事件发生" ) ); wxLogMessage(wxT("子项目 '%s' 在鼠标下"), item->GetDesc()); } } event.Skip(); } static inline const wxChar *Bool2String(bool b) { return b ? wxT("") : wxT("not "); } void MyTreeItemData::ShowInfo(wxTreeCtrl *tree) { wxLogMessage(wxT("项目 '%s': %s被选中, %s被展开, %s加粗,/n") wxT("%u 个孩子 (%u immediately under this item)."), m_desc.c_str(), Bool2String(tree->IsSelected(GetId())), Bool2String(tree->IsExpanded(GetId())), Bool2String(tree->IsBold(GetId())), unsigned(tree->GetChildrenCount(GetId())), unsigned(tree->GetChildrenCount(GetId(), false))); }