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all code revisited.

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Main additions:
- now it's possible to change the DVC style dynamically
- make models more robust against deleting items, and against other allowed user actions
- comment portions of the code to make it more didactive

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@59323 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Francesco Montorsi 2009-03-04 22:33:18 +00:00
parent 14f73cf1da
commit 81c3f0fce3
3 changed files with 632 additions and 378 deletions
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625
samples/dataview/dataview.cpp
View File

@ -66,10 +66,18 @@ public:
MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int h);
~MyFrame();
public:
void BuildDataViewCtrl(wxPanel* parent,
unsigned int nPanel,
unsigned long style = 0);
public: // event handlers
void OnStyleChange(wxCommandEvent& event);
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnPageChanged(wxBookCtrlEvent& event);
void OnAddMozart(wxCommandEvent& event);
void OnDeleteMusic(wxCommandEvent& event);
void OnDeleteYear(wxCommandEvent& event);
@ -109,15 +117,13 @@ private:
// the controls stored in the various tabs of the main notebook:
wxDataViewCtrl* m_myMusicModelViewCtrl;
wxDataViewCtrl* m_ctrl[4];
// the models associated with the first two DVC:
wxObjectDataPtr<MyMusicTreeModel> m_music_model;
wxDataViewCtrl* m_myListModelViewCtrl;
wxObjectDataPtr<MyListModel> m_list_model;
wxDataViewListCtrl* m_listctrl;
wxDataViewTreeCtrl* m_treectrl;
// other data:
wxDataViewColumn* m_col;
@ -145,17 +151,16 @@ public:
{
dc->SetBrush( *wxRED_BRUSH );
dc->SetPen( *wxTRANSPARENT_PEN );
dc->DrawRectangle( rect );
dc->DrawRectangle( rect.Deflate(2) );
return true;
}
virtual bool Activate( wxRect WXUNUSED(cell),
wxDataViewModel *WXUNUSED(model),
const wxDataViewItem &WXUNUSED(item),
unsigned int WXUNUSED(col) )
{
wxLogMessage( wxT("MyCustomRenderer Activate()") );
wxLogMessage( "MyCustomRenderer Activate()" );
return false;
}
@ -164,7 +169,7 @@ public:
const wxDataViewItem &WXUNUSED(item),
unsigned int WXUNUSED(col) )
{
wxLogMessage( wxT("MyCustomRenderer LeftClick( %d, %d )"), cursor.x, cursor.y );
wxLogMessage( "MyCustomRenderer LeftClick( %d, %d )", cursor.x, cursor.y );
return false;
}
@ -217,10 +222,23 @@ bool MyApp::OnInit()
enum
{
ID_STYLE_MENU = wxID_HIGHEST+1,
// file menu
ID_ABOUT = wxID_ABOUT,
//ID_SINGLE, wxDV_SINGLE==0 so it's always present
ID_MULTIPLE,
ID_ROW_LINES,
ID_HORIZ_RULES,
ID_VERT_RULES,
ID_EXIT = wxID_EXIT,
// about menu
ID_ABOUT = wxID_ABOUT,
// control IDs
ID_MUSIC_CTRL = 50,
ID_ADD_MOZART = 100,
@ -235,8 +253,12 @@ enum
};
BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU( ID_ABOUT, MyFrame::OnAbout )
EVT_MENU_RANGE( ID_MULTIPLE, ID_VERT_RULES, MyFrame::OnStyleChange )
EVT_MENU( ID_EXIT, MyFrame::OnQuit )
EVT_MENU( ID_ABOUT, MyFrame::OnAbout )
EVT_NOTEBOOK_PAGE_CHANGED( wxID_ANY, MyFrame::OnPageChanged )
EVT_BUTTON( ID_ADD_MOZART, MyFrame::OnAddMozart )
EVT_BUTTON( ID_DELETE_MUSIC, MyFrame::OnDeleteMusic )
EVT_BUTTON( ID_DELETE_YEAR, MyFrame::OnDeleteYear )
@ -277,19 +299,35 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
m_log = NULL;
m_col = NULL;
m_ctrl[0] = NULL;
m_ctrl[1] = NULL;
m_ctrl[2] = NULL;
m_ctrl[3] = NULL;
SetIcon(wxICON(sample));
// build the menus
// ----------------
wxMenu *style_menu = new wxMenu;
//style_menu->AppendCheckItem(ID_SINGLE, wxT("Single selection"));
style_menu->AppendCheckItem(ID_MULTIPLE, wxT("Multiple selection"));
style_menu->AppendCheckItem(ID_ROW_LINES, wxT("Alternating colours"));
style_menu->AppendCheckItem(ID_HORIZ_RULES, wxT("Display horizontal rules"));
style_menu->AppendCheckItem(ID_VERT_RULES, wxT("Display vertical rules"));
wxMenu *file_menu = new wxMenu;
file_menu->Append(ID_ABOUT, wxT("&About"));
file_menu->Append(ID_STYLE_MENU, wxT("&Style"), style_menu);
file_menu->AppendSeparator();
file_menu->Append(ID_EXIT, wxT("E&xit"));
wxMenu *about_menu = new wxMenu;
about_menu->Append(ID_ABOUT, wxT("&About"));
wxMenuBar *menu_bar = new wxMenuBar;
menu_bar->Append(file_menu, wxT("&File"));
menu_bar->Append(about_menu, wxT("&About"));
SetMenuBar(menu_bar);
CreateStatusBar();
@ -301,75 +339,8 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
m_notebook = new wxNotebook( this, wxID_ANY );
wxPanel *firstPanel = new wxPanel( m_notebook, wxID_ANY );
m_myMusicModelViewCtrl =
new wxDataViewCtrl( firstPanel, ID_MUSIC_CTRL, wxDefaultPosition,
wxDefaultSize, wxDV_MULTIPLE|wxDV_VARIABLE_LINE_HEIGHT );
m_music_model = new MyMusicTreeModel;
m_myMusicModelViewCtrl->AssociateModel( m_music_model.get() );
m_myMusicModelViewCtrl->EnableDragSource( wxDF_UNICODETEXT );
m_myMusicModelViewCtrl->EnableDropTarget( wxDF_UNICODETEXT );
// column 0 of the view control:
wxDataViewTextRenderer *tr =
new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_INERT );
wxDataViewColumn *column0 =
new wxDataViewColumn( wxT("title"), tr, 0, 200, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE );
m_myMusicModelViewCtrl->AppendColumn( column0 );
#if 0
// Call this and sorting is enabled
// immediatly upon start up.
column0->SetAsSortKey();
#endif
// column 1 of the view control:
tr = new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_EDITABLE );
wxDataViewColumn *column1 =
new wxDataViewColumn( wxT("artist"), tr, 1, 150, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE |
wxDATAVIEW_COL_RESIZABLE );
column1->SetMinWidth(150); // this column can't be resized to be smaller
m_myMusicModelViewCtrl->AppendColumn( column1 );
// column 2 of the view control:
wxDataViewSpinRenderer *sr =
new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
wxDataViewColumn *column2 =
new wxDataViewColumn( wxT("year"), sr, 2, 60, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
m_myMusicModelViewCtrl->AppendColumn( column2 );
// column 3 of the view control:
wxArrayString choices;
choices.Add( "good" );
choices.Add( "bad" );
choices.Add( "lousy" );
wxDataViewChoiceRenderer *c =
new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
wxDataViewColumn *column3 =
new wxDataViewColumn( wxT("rating"), c, 3, 100, wxALIGN_LEFT,
wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
m_myMusicModelViewCtrl->AppendColumn( column3 );
// column 4 of the view control:
m_myMusicModelViewCtrl->AppendProgressColumn( wxT("popularity"), 4, wxDATAVIEW_CELL_INERT, 80 );
// column 5 of the view control:
MyCustomRenderer *cr = new MyCustomRenderer( wxDATAVIEW_CELL_ACTIVATABLE, wxALIGN_RIGHT );
wxDataViewColumn *column5 =
new wxDataViewColumn( wxT("custom"), cr, 5, -1, wxALIGN_LEFT,
wxDATAVIEW_COL_RESIZABLE );
m_myMusicModelViewCtrl->AppendColumn( column5 );
// complete this page:
BuildDataViewCtrl(firstPanel, 0); // sets m_ctrl[0]
wxBoxSizer *button_sizer = new wxBoxSizer( wxHORIZONTAL );
button_sizer->Add( new wxButton( firstPanel, ID_ADD_MOZART, _("Add Mozart")), 0, wxALL, 10 );
@ -378,8 +349,11 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
button_sizer->Add( new wxButton( firstPanel, ID_SELECT_NINTH,_("Select Ninth")), 0, wxALL, 10 );
wxSizer *firstPanelSz = new wxBoxSizer( wxVERTICAL );
m_myMusicModelViewCtrl->SetMinSize(wxSize(-1, 200));
firstPanelSz->Add(m_myMusicModelViewCtrl, 1, wxGROW|wxALL, 5);
m_ctrl[0]->SetMinSize(wxSize(-1, 200));
firstPanelSz->Add(m_ctrl[0], 1, wxGROW|wxALL, 5);
firstPanelSz->Add(
new wxStaticText(firstPanel, wxID_ANY, wxT("Most of the cells above are editable!")),
0, wxGROW|wxALL, 5);
firstPanelSz->Add(button_sizer);
firstPanel->SetSizerAndFit(firstPanelSz);
@ -389,24 +363,7 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
wxPanel *secondPanel = new wxPanel( m_notebook, wxID_ANY );
m_myListModelViewCtrl = new wxDataViewCtrl( secondPanel, wxID_ANY, wxDefaultPosition,
wxDefaultSize, wxDV_MULTIPLE | wxDV_ROW_LINES);
m_list_model = new MyListModel;
m_myListModelViewCtrl->AssociateModel( m_list_model.get() );
// the various columns
#if 1
m_myListModelViewCtrl->AppendTextColumn (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE, 120 );
m_myListModelViewCtrl->AppendIconTextColumn(wxIcon(wx_small_xpm), 1, wxDATAVIEW_CELL_INERT )->SetTitle( wxT("icon") );
#else
m_myListModelViewCtrl->AppendTextColumn (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE );
m_myListModelViewCtrl->AppendIconTextColumn(wxT("icon"), 1, wxDATAVIEW_CELL_INERT );
#endif
m_myListModelViewCtrl->AppendColumn(
new wxDataViewColumn(wxT("attributes"), new wxDataViewTextRendererAttr, 2 ));
// complete this page:
BuildDataViewCtrl(secondPanel, 1); // sets m_ctrl[1]
wxBoxSizer *button_sizer2 = new wxBoxSizer( wxHORIZONTAL );
button_sizer2->Add( new wxButton( secondPanel, ID_PREPEND_LIST,_("Prepend")), 0, wxALL, 10 );
@ -415,35 +372,20 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
button_sizer2->Add( new wxButton( secondPanel, ID_ADD_MANY, _("Add 1000")), 0, wxALL, 10 );
wxSizer *secondPanelSz = new wxBoxSizer( wxVERTICAL );
secondPanelSz->Add(m_myListModelViewCtrl, 1, wxGROW|wxALL, 5);
secondPanelSz->Add(m_ctrl[1], 1, wxGROW|wxALL, 5);
secondPanelSz->Add(button_sizer2);
secondPanel->SetSizerAndFit(secondPanelSz);
// third page of the notebook
// ---------------------------
wxPanel *thirdPanel = new wxPanel( m_notebook, wxID_ANY );
m_listctrl = new wxDataViewListCtrl( thirdPanel, wxID_ANY );
m_listctrl->AppendToggleColumn( wxT("Toggle") );
m_listctrl->AppendTextColumn( wxT("Text") );
wxVector<wxVariant> data;
data.push_back( true );
data.push_back( "row 1" );
m_listctrl->AppendItem( data );
data.clear();
data.push_back( false );
data.push_back( "row 3" );
m_listctrl->AppendItem( data );
// complete this page:
BuildDataViewCtrl(thirdPanel, 2); // sets m_ctrl[2]
wxSizer *thirdPanelSz = new wxBoxSizer( wxVERTICAL );
thirdPanelSz->Add(m_listctrl, 1, wxGROW|wxALL, 5);
thirdPanelSz->Add(m_ctrl[2], 1, wxGROW|wxALL, 5);
thirdPanel->SetSizerAndFit(thirdPanelSz);
@ -452,21 +394,10 @@ MyFrame::MyFrame(wxFrame *frame, const wxString &title, int x, int y, int w, int
wxPanel *fourthPanel = new wxPanel( m_notebook, wxID_ANY );
m_treectrl = new wxDataViewTreeCtrl( fourthPanel, wxID_ANY );
wxImageList *ilist = new wxImageList( 16, 16 );
ilist->Add( wxIcon(wx_small_xpm) );
m_treectrl->SetImageList( ilist );
wxDataViewItem parent2 = m_treectrl->AppendContainer( wxDataViewItem(0),wxT("Root 1"), 0 );
m_treectrl->AppendItem( parent2, wxT("Child 1"), 0 );
m_treectrl->AppendItem( parent2, wxT("Child 2"), 0 );
m_treectrl->AppendItem( parent2, wxT("Child 3, very long, long, long, long"), 0 );
// complete this page:
BuildDataViewCtrl(fourthPanel, 3); // sets m_ctrl[3]
wxSizer *fourthPanelSz = new wxBoxSizer( wxVERTICAL );
fourthPanelSz->Add(m_treectrl, 1, wxGROW|wxALL, 5);
fourthPanelSz->Add(m_ctrl[3], 1, wxGROW|wxALL, 5);
fourthPanel->SetSizerAndFit(fourthPanelSz);
@ -498,20 +429,322 @@ MyFrame::~MyFrame()
delete wxLog::SetActiveTarget(m_logOld);
}
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event) )
void MyFrame::BuildDataViewCtrl(wxPanel* parent, unsigned int nPanel, unsigned long style)
{
switch (nPanel)
{
case 0:
{
wxASSERT(!m_ctrl[0] && !m_music_model);
m_ctrl[0] =
new wxDataViewCtrl( parent, ID_MUSIC_CTRL, wxDefaultPosition,
wxDefaultSize, style );
m_music_model = new MyMusicTreeModel;
m_ctrl[0]->AssociateModel( m_music_model.get() );
m_ctrl[0]->EnableDragSource( wxDF_UNICODETEXT );
m_ctrl[0]->EnableDropTarget( wxDF_UNICODETEXT );
// column 0 of the view control:
wxDataViewTextRenderer *tr =
new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_INERT );
wxDataViewColumn *column0 =
new wxDataViewColumn( wxT("title"), tr, 0, 200, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_RESIZABLE );
m_ctrl[0]->AppendColumn( column0 );
#if 0
// Call this and sorting is enabled
// immediatly upon start up.
column0->SetAsSortKey();
#endif
// column 1 of the view control:
tr = new wxDataViewTextRenderer( wxT("string"), wxDATAVIEW_CELL_EDITABLE );
wxDataViewColumn *column1 =
new wxDataViewColumn( wxT("artist"), tr, 1, 150, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE |
wxDATAVIEW_COL_RESIZABLE );
column1->SetMinWidth(150); // this column can't be resized to be smaller
m_ctrl[0]->AppendColumn( column1 );
// column 2 of the view control:
wxDataViewSpinRenderer *sr =
new wxDataViewSpinRenderer( 0, 2010, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
wxDataViewColumn *column2 =
new wxDataViewColumn( wxT("year"), sr, 2, 60, wxALIGN_LEFT,
wxDATAVIEW_COL_SORTABLE | wxDATAVIEW_COL_REORDERABLE );
m_ctrl[0]->AppendColumn( column2 );
// column 3 of the view control:
wxArrayString choices;
choices.Add( "good" );
choices.Add( "bad" );
choices.Add( "lousy" );
wxDataViewChoiceRenderer *c =
new wxDataViewChoiceRenderer( choices, wxDATAVIEW_CELL_EDITABLE, wxALIGN_RIGHT );
wxDataViewColumn *column3 =
new wxDataViewColumn( wxT("rating"), c, 3, 100, wxALIGN_LEFT,
wxDATAVIEW_COL_REORDERABLE | wxDATAVIEW_COL_RESIZABLE );
m_ctrl[0]->AppendColumn( column3 );
// column 4 of the view control:
m_ctrl[0]->AppendProgressColumn( wxT("popularity"), 4, wxDATAVIEW_CELL_INERT, 80 );
// column 5 of the view control:
MyCustomRenderer *cr = new MyCustomRenderer( wxDATAVIEW_CELL_ACTIVATABLE, wxALIGN_RIGHT );
wxDataViewColumn *column5 =
new wxDataViewColumn( wxT("custom"), cr, 5, -1, wxALIGN_LEFT,
wxDATAVIEW_COL_RESIZABLE );
m_ctrl[0]->AppendColumn( column5 );
// select initially the ninth symphony:
m_ctrl[0]->Select(m_music_model->GetNinthItem());
}
break;
case 1:
{
wxASSERT(!m_ctrl[1] && !m_list_model);
m_ctrl[1] = new wxDataViewCtrl( parent, wxID_ANY, wxDefaultPosition,
wxDefaultSize, style );
m_list_model = new MyListModel;
m_ctrl[1]->AssociateModel( m_list_model.get() );
// the various columns
#if 1
m_ctrl[1]->AppendTextColumn (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE, 120 );
m_ctrl[1]->AppendIconTextColumn(wxIcon(wx_small_xpm), 1, wxDATAVIEW_CELL_INERT )->SetTitle( wxT("icon") );
#else
m_ctrl[1]->AppendTextColumn (wxT("editable string"), 0, wxDATAVIEW_CELL_EDITABLE );
m_ctrl[1]->AppendIconTextColumn(wxT("icon"), 1, wxDATAVIEW_CELL_INERT );
#endif
m_ctrl[1]->AppendColumn(
new wxDataViewColumn(wxT("attributes"), new wxDataViewTextRendererAttr, 2 ));
}
break;
case 2:
{
wxASSERT(!m_ctrl[2]);
wxDataViewListCtrl* lc =
new wxDataViewListCtrl( parent, wxID_ANY, wxDefaultPosition,
wxDefaultSize, style );
m_ctrl[2] = lc;
lc->AppendToggleColumn( wxT("Toggle") );
lc->AppendTextColumn( wxT("Text") );
lc->AppendProgressColumn( wxT("Progress") );
wxVector<wxVariant> data;
for (unsigned int i=0; i<10; i++)
{
data.clear();
data.push_back( (i%3) == 0 );
data.push_back( wxString::Format("row %d", i) );
data.push_back( long(5*i) );
lc->AppendItem( data );
}
}
break;
case 3:
{
wxASSERT(!m_ctrl[3]);
wxDataViewTreeCtrl* tc =
new wxDataViewTreeCtrl( parent, wxID_ANY, wxDefaultPosition,
wxDefaultSize, style );
m_ctrl[3] = tc;
wxImageList *ilist = new wxImageList( 16, 16 );
ilist->Add( wxIcon(wx_small_xpm) );
tc->SetImageList( ilist );
wxDataViewItem parent =
tc->AppendContainer( wxDataViewItem(0), wxT("The Root"), 0 );
tc->AppendItem( parent, wxT("Child 1"), 0 );
tc->AppendItem( parent, wxT("Child 2"), 0 );
tc->AppendItem( parent, wxT("Child 3, very long, long, long, long"), 0 );
wxDataViewItem cont =
tc->AppendContainer( parent, wxT("Container child"), 0 );
tc->AppendItem( cont, wxT("Child 4"), 0 );
tc->AppendItem( cont, wxT("Child 5"), 0 );
tc->Expand(cont);
}
break;
}
}
// ----------------------------------------------------------------------------
// MyFrame - generic event handlers
// ----------------------------------------------------------------------------
void MyFrame::OnPageChanged(wxBookCtrlEvent& WXUNUSED(event) )
{
unsigned int nPanel = m_notebook->GetSelection();
GetMenuBar()->FindItem(ID_STYLE_MENU)->SetItemLabel(
wxString::Format("Style of panel #%d", nPanel+1));
for (unsigned int id = ID_MULTIPLE; id <= ID_VERT_RULES; id++)
{
unsigned long style = 0;
switch (id)
{
/*case ID_SINGLE:
style = wxDV_SINGLE;
break;*/
case ID_MULTIPLE:
style = wxDV_MULTIPLE;
break;
case ID_ROW_LINES:
style = wxDV_ROW_LINES;
break;
case ID_HORIZ_RULES:
style = wxDV_HORIZ_RULES;
break;
case ID_VERT_RULES:
style = wxDV_VERT_RULES;
break;
default:
wxFAIL;
}
GetMenuBar()->FindItem(id)->Check( m_ctrl[nPanel]->HasFlag(style) );
}
}
void MyFrame::OnStyleChange(wxCommandEvent& WXUNUSED(event) )
{
unsigned int nPanel = m_notebook->GetSelection();
// build the style
unsigned long style = 0;
/*if (GetMenuBar()->FindItem(ID_SINGLE)->IsChecked())
style |= wxDV_SINGLE;*/
if (GetMenuBar()->FindItem(ID_MULTIPLE)->IsChecked())
style |= wxDV_MULTIPLE;
if (GetMenuBar()->FindItem(ID_ROW_LINES)->IsChecked())
style |= wxDV_ROW_LINES;
if (GetMenuBar()->FindItem(ID_HORIZ_RULES)->IsChecked())
style |= wxDV_HORIZ_RULES;
if (GetMenuBar()->FindItem(ID_VERT_RULES)->IsChecked())
style |= wxDV_VERT_RULES;
wxSizer* sz = m_ctrl[nPanel]->GetContainingSizer();
wxASSERT(sz);
sz->Detach(m_ctrl[nPanel]);
wxDELETE(m_ctrl[nPanel]);
m_ctrl[nPanel] = NULL;
if (nPanel == 0)
m_music_model.reset(NULL);
else if (nPanel == 1)
m_list_model.reset(NULL);
// rebuild the DVC for the selected panel:
BuildDataViewCtrl((wxPanel*)m_notebook->GetPage(nPanel), nPanel, style);
sz->Prepend(m_ctrl[nPanel], 1, wxGROW|wxALL, 5);
sz->Layout();
}
void MyFrame::OnQuit( wxCommandEvent& WXUNUSED(event) )
{
Close(true);
}
void MyFrame::OnAddMozart(wxCommandEvent& WXUNUSED(event) )
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
wxAboutDialogInfo info;
info.SetName(_("DataView sample"));
info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
info.SetCopyright(_T("(C) 2007-2009 Robert Roebling"));
info.AddDeveloper("Robert Roebling");
info.AddDeveloper("Francesco Montorsi");
wxAboutBox(info);
}
// ----------------------------------------------------------------------------
// MyFrame - event handlers for the first page
// ----------------------------------------------------------------------------
void MyFrame::OnBeginDrag( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drags for item, not containers
if (m_music_model->IsContainer( item ) )
{
event.Veto();
return;
}
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
wxTextDataObject *obj = new wxTextDataObject;
obj->SetText( node->m_title );
event.SetDataObject( obj );
}
void MyFrame::OnDropPossible( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drags for item, not containers
if (m_music_model->IsContainer( item ) )
event.Veto();
if (event.GetDataFormat() != wxDF_UNICODETEXT)
event.Veto();
}
void MyFrame::OnDrop( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drops for item, not containers
if (m_music_model->IsContainer( item ) )
{
event.Veto();
return;
}
if (event.GetDataFormat() != wxDF_UNICODETEXT)
{
event.Veto();
return;
}
wxTextDataObject obj;
obj.SetData( wxDF_UNICODETEXT, event.GetDataSize(), event.GetDataBuffer() );
wxLogMessage(wxT("Text dropped: %s"), obj.GetText() );
}
void MyFrame::OnAddMozart( wxCommandEvent& WXUNUSED(event) )
{
m_music_model->AddToClassical( wxT("Kleine Nachtmusik"), wxT("Wolfgang Mozart"), 1787 );
}
void MyFrame::OnDeleteMusic(wxCommandEvent& WXUNUSED(event) )
void MyFrame::OnDeleteMusic( wxCommandEvent& WXUNUSED(event) )
{
wxDataViewItemArray items;
int len = m_myMusicModelViewCtrl->GetSelections( items );
int len = m_ctrl[0]->GetSelections( items );
for( int i = 0; i < len; i ++ )
if (items[i].IsOk())
m_music_model->Delete( items[i] );
@ -519,26 +752,13 @@ void MyFrame::OnDeleteMusic(wxCommandEvent& WXUNUSED(event) )
void MyFrame::OnDeleteYear( wxCommandEvent& WXUNUSED(event) )
{
m_myMusicModelViewCtrl->DeleteColumn( m_myMusicModelViewCtrl->GetColumn( 2 ) );
m_ctrl[0]->DeleteColumn( m_ctrl[0]->GetColumn( 2 ) );
FindWindow( ID_DELETE_YEAR )->Disable();
}
void MyFrame::OnSelectNinth( wxCommandEvent& WXUNUSED(event) )
{
m_myMusicModelViewCtrl->Select( m_music_model->GetNinthItem() );
}
void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )
{
m_list_model->Prepend(wxT("Test"));
}
void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
{
wxDataViewItemArray items;
int len = m_myListModelViewCtrl->GetSelections( items );
if (len > 0)
m_list_model->DeleteItems( items );
m_ctrl[0]->Select( m_music_model->GetNinthItem() );
}
void MyFrame::OnValueChanged( wxDataViewEvent &event )
@ -558,7 +778,7 @@ void MyFrame::OnActivated( wxDataViewEvent &event )
wxString title = m_music_model->GetTitle( event.GetItem() );
wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_ACTIVATED, Item: %s"), title );
if (m_myMusicModelViewCtrl->IsExpanded( event.GetItem() ))
if (m_ctrl[0]->IsExpanded( event.GetItem() ))
wxLogMessage(wxT("Item: %s is expanded"), title );
}
@ -642,10 +862,10 @@ void MyFrame::OnContextMenu( wxDataViewEvent &event )
menu.Append( 2, wxT("entry 2") );
menu.Append( 3, wxT("entry 3") );
m_myMusicModelViewCtrl->PopupMenu(&menu);
m_ctrl[0]->PopupMenu(&menu);
// wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s Value: %s"),
// title.GetData(), event.GetValue().GetString());
wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_ITEM_CONTEXT_MENU, Item: %s Value: %s"),
title.GetData(), event.GetValue().GetString());
}
void MyFrame::OnHeaderClick( wxDataViewEvent &event )
@ -654,10 +874,10 @@ void MyFrame::OnHeaderClick( wxDataViewEvent &event )
// this column when it is clicked to take place
event.Skip();
if(!m_log)
if (!m_log)
return;
int pos = m_myMusicModelViewCtrl->GetColumnPosition( event.GetDataViewColumn() );
int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );
wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_CLICK, Column position: %d"), pos );
}
@ -667,7 +887,7 @@ void MyFrame::OnHeaderRightClick( wxDataViewEvent &event )
if(!m_log)
return;
int pos = m_myMusicModelViewCtrl->GetColumnPosition( event.GetDataViewColumn() );
int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );
wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_HEADER_RIGHT_CLICK, Column position: %d"), pos );
}
@ -677,7 +897,7 @@ void MyFrame::OnSorted( wxDataViewEvent &event )
if(!m_log)
return;
int pos = m_myMusicModelViewCtrl->GetColumnPosition( event.GetDataViewColumn() );
int pos = m_ctrl[0]->GetColumnPosition( event.GetDataViewColumn() );
wxLogMessage(wxT("wxEVT_COMMAND_DATAVIEW_COLUMN_SORTED, Column position: %d"), pos );
}
@ -691,10 +911,28 @@ void MyFrame::OnRightClick( wxMouseEvent &event )
event.GetX(), event.GetY());
}
// ----------------------------------------------------------------------------
// MyFrame - event handlers for the second page
// ----------------------------------------------------------------------------
void MyFrame::OnPrependList( wxCommandEvent& WXUNUSED(event) )
{
m_list_model->Prepend(wxT("Test"));
}
void MyFrame::OnDeleteList( wxCommandEvent& WXUNUSED(event) )
{
wxDataViewItemArray items;
int len = m_ctrl[1]->GetSelections( items );
if (len > 0)
m_list_model->DeleteItems( items );
}
void MyFrame::OnGoto(wxCommandEvent& WXUNUSED(event))
{
wxDataViewItem item = m_list_model->GetItem( 50 );
m_myListModelViewCtrl->EnsureVisible(item,m_col);
m_ctrl[1]->EnsureVisible(item,m_col);
}
void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))
@ -702,68 +940,3 @@ void MyFrame::OnAddMany(wxCommandEvent& WXUNUSED(event))
m_list_model->AddMany();
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event) )
{
wxAboutDialogInfo info;
info.SetName(_("DataView sample"));
info.SetDescription(_("This sample demonstrates wxDataViewCtrl"));
info.SetCopyright(_T("(C) 2007-2009 Robert Roebling"));
info.AddDeveloper("Robert Roebling");
info.AddDeveloper("Francesco Montorsi");
wxAboutBox(info);
}
void MyFrame::OnBeginDrag( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drags for item, not containers
if (m_music_model->IsContainer( item ) )
{
event.Veto();
return;
}
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
wxTextDataObject *obj = new wxTextDataObject;
obj->SetText( node->m_title );
event.SetDataObject( obj );
}
void MyFrame::OnDropPossible( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drags for item, not containers
if (m_music_model->IsContainer( item ) )
event.Veto();
if (event.GetDataFormat() != wxDF_UNICODETEXT)
event.Veto();
}
void MyFrame::OnDrop( wxDataViewEvent &event )
{
wxDataViewItem item( event.GetItem() );
// only allow drops for item, not containers
if (m_music_model->IsContainer( item ) )
{
event.Veto();
return;
}
if (event.GetDataFormat() != wxDF_UNICODETEXT)
{
event.Veto();
return;
}
wxTextDataObject obj;
obj.SetData( wxDF_TEXT, event.GetDataSize(), event.GetDataBuffer() );
wxLogMessage(wxT("Text dropped: %s"), obj.GetText() );
}

238
samples/dataview/mymodels.cpp
View File

@ -29,6 +29,7 @@
// ----------------------------------------------------------------------------
#include "null.xpm"
#include "wx_small.xpm"
// ----------------------------------------------------------------------------
@ -38,26 +39,31 @@
MyMusicTreeModel::MyMusicTreeModel()
{
m_root = new MyMusicTreeModelNode( NULL, wxT("My Music" ));
// setup pop music
m_pop = new MyMusicTreeModelNode( m_root, wxT("Pop music") );
m_pop->Append(
new MyMusicTreeModelNode( m_pop, wxT("You are not alone"), wxT("Michael Jackson"), 1995 ) );
m_pop->Append(
new MyMusicTreeModelNode( m_pop, wxT("Take a bow"), wxT("Madonna"), 1994 ) );
m_root->Append( m_pop );
m_pop->Append( new MyMusicTreeModelNode( m_pop,
wxT("You are not alone"), wxT("Michael Jackson"), 1995 ) );
m_pop->Append( new MyMusicTreeModelNode( m_pop,
wxT("Take a bow"), wxT("Madonna"), 1994 ) );
// setup classical music
m_classical = new MyMusicTreeModelNode( m_root, wxT("Classical music") );
m_root->Append( m_classical );
m_ninth = new MyMusicTreeModelNode( m_classical,
wxT("Ninth symphony"), wxT("Ludwig van Beethoven"), 1824 );
m_ninth = new MyMusicTreeModelNode( m_classical, wxT("Ninth symphony"),
wxT("Ludwig van Beethoven"), 1824 );
m_classical->Append( m_ninth );
m_classical->Append( new MyMusicTreeModelNode( m_classical,
wxT("German Requiem"), wxT("Johannes Brahms"), 1868 ) );
m_classical->Append( new MyMusicTreeModelNode( m_classical, wxT("German Requiem"),
wxT("Johannes Brahms"), 1868 ) );
m_root->Append( m_classical );
m_classicalMusicIsKnownToControl = false;
}
wxString MyMusicTreeModel::GetTitle( const wxDataViewItem &item ) const
{
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
if (!node)
if (!node) // happens if item.IsOk()==false
return wxEmptyString;
return node->m_title;
@ -66,18 +72,27 @@ wxString MyMusicTreeModel::GetTitle( const wxDataViewItem &item ) const
int MyMusicTreeModel::GetYear( const wxDataViewItem &item ) const
{
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
if (!node)
if (!node) // happens if item.IsOk()==false
return 2000;
return node->m_year;
}
void MyMusicTreeModel::AddToClassical( const wxString &title, const wxString &artist, int year )
void MyMusicTreeModel::AddToClassical( const wxString &title, const wxString &artist,
unsigned int year )
{
// add to data
if (!m_classical)
{
wxASSERT(m_root);
// it was removed: restore it
m_classical = new MyMusicTreeModelNode( m_root, wxT("Classical music") );
m_root->Append( m_classical );
}
// add to the classical music node a new node:
MyMusicTreeModelNode *child_node =
new MyMusicTreeModelNode( m_classical, title, artist, year );
m_classical->Append( child_node );
if (m_classicalMusicIsKnownToControl)
@ -92,9 +107,33 @@ void MyMusicTreeModel::AddToClassical( const wxString &title, const wxString &ar
void MyMusicTreeModel::Delete( const wxDataViewItem &item )
{
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
wxDataViewItem parent( node->GetParent() );
if (!node) // happens if item.IsOk()==false
return;
wxDataViewItem parent( node->GetParent() );
if (!parent.IsOk())
{
wxASSERT(node == m_root);
// don't make the control completely empty:
wxLogError("Cannot remove the root item!");
return;
}
// is the node one of those we keep stored in special pointers?
if (node == m_pop)
m_pop = NULL;
else if (node == m_classical)
m_classical = NULL;
else if (node == m_ninth)
m_ninth = NULL;
// first remove the node from the parent's array of children;
// NOTE: MyMusicTreeModelNodePtrArray is only an array of _pointers_
// thus removing the node from it doesn't result in freeing it
node->GetParent()->GetChildren().Remove( node );
// free the node
delete node;
// notify control
@ -104,9 +143,12 @@ void MyMusicTreeModel::Delete( const wxDataViewItem &item )
int MyMusicTreeModel::Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
unsigned int column, bool ascending )
{
wxASSERT(item1.IsOk() && item2.IsOk());
// should never happen
if (IsContainer(item1) && IsContainer(item2))
{
wxVariant value1,value2;
wxVariant value1, value2;
GetValue( value1, item1, 0 );
GetValue( value2, item2, 0 );
@ -128,60 +170,73 @@ int MyMusicTreeModel::Compare( const wxDataViewItem &item1, const wxDataViewItem
void MyMusicTreeModel::GetValue( wxVariant &variant,
const wxDataViewItem &item, unsigned int col ) const
{
wxASSERT(item.IsOk());
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
switch (col)
{
case 0: variant = node->m_title; break;
case 1: variant = node->m_artist; break;
case 2: variant = (long) node->m_year; break;
case 3: variant = node->m_quality; break;
case 4:
// wxMac doesn't conceal the popularity progress renderer, return 0 for containers
if (IsContainer(item))
variant = (long) 0;
else
variant = (long) 80; // all music is very 80% popular
break;
case 5:
// Make size of red square depend on year
if (GetYear(item) < 1900)
variant = (long) 35;
else
variant = (long) 25;
break;
default:
{
wxLogError( wxT("MyMusicTreeModel::GetValue: wrong column %d"), col );
case 0:
variant = node->m_title;
break;
case 1:
variant = node->m_artist;
break;
case 2:
variant = (long) node->m_year;
break;
case 3:
variant = node->m_quality;
break;
case 4:
// wxMac doesn't conceal the popularity progress renderer, return 0 for containers
if (IsContainer(item))
variant = (long) 0;
else
variant = (long) 80; // all music is very 80% popular
break;
case 5:
// Make size of red square depend on year
if (GetYear(item) < 1900)
variant = (long) 35;
else
variant = (long) 25;
break;
// provoke a crash when mouse button down
wxMouseState state = wxGetMouseState();
if (state.ShiftDown())
{
char *crash = 0;
*crash = 0;
}
}
default:
wxLogError( wxT("MyMusicTreeModel::GetValue: wrong column %d"), col );
}
}
bool MyMusicTreeModel::SetValue( const wxVariant &variant,
const wxDataViewItem &item, unsigned int col )
{
wxASSERT(item.IsOk());
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) item.GetID();
switch (col)
{
case 0: node->m_title = variant.GetString(); return true;
case 1: node->m_artist = variant.GetString(); return true;
case 2: node->m_year = variant.GetLong(); return true;
case 3: node->m_quality = variant.GetString(); return true;
default: wxLogError( wxT("MyMusicTreeModel::SetValue: wrong column") );
case 0:
node->m_title = variant.GetString();
return true;
case 1:
node->m_artist = variant.GetString();
return true;
case 2:
node->m_year = variant.GetLong();
return true;
case 3:
node->m_quality = variant.GetString();
return true;
default:
wxLogError( wxT("MyMusicTreeModel::SetValue: wrong column") );
}
return false;
}
wxDataViewItem MyMusicTreeModel::GetParent( const wxDataViewItem &item ) const
{
// the invisble root node has no parent
// the invisible root node has no parent
if (!item.IsOk())
return wxDataViewItem(0);
@ -196,8 +251,8 @@ wxDataViewItem MyMusicTreeModel::GetParent( const wxDataViewItem &item ) const
bool MyMusicTreeModel::IsContainer( const wxDataViewItem &item ) const
{
// the invisble root node can have children (in
// our model always "MyMusic")
// the invisble root node can have children
// (in our model always "MyMusic")
if (!item.IsOk())
return true;
@ -205,7 +260,8 @@ bool MyMusicTreeModel::IsContainer( const wxDataViewItem &item ) const
return node->IsContainer();
}
unsigned int MyMusicTreeModel::GetChildren( const wxDataViewItem &parent, wxDataViewItemArray &array ) const
unsigned int MyMusicTreeModel::GetChildren( const wxDataViewItem &parent,
wxDataViewItemArray &array ) const
{
MyMusicTreeModelNode *node = (MyMusicTreeModelNode*) parent.GetID();
if (!node)
@ -226,12 +282,12 @@ unsigned int MyMusicTreeModel::GetChildren( const wxDataViewItem &parent, wxData
}
unsigned int count = node->GetChildren().GetCount();
unsigned int pos;
for (pos = 0; pos < count; pos++)
for (unsigned int pos = 0; pos < count; pos++)
{
MyMusicTreeModelNode *child = node->GetChildren().Item( pos );
array.Add( wxDataViewItem( (void*) child ) );
}
return count;
}
@ -251,28 +307,28 @@ static int my_sort( int *v1, int *v2 )
return *v1-*v2;
}
MyListModel::MyListModel() :
#ifdef __WXMAC__
wxDataViewVirtualListModel( 1000 + 100 )
#define INITIAL_NUMBER_OF_ITEMS 100
#else
wxDataViewVirtualListModel( 100000 + 100 )
#endif
{
#ifdef __WXMAC__
m_virtualItems = 1000;
#else
m_virtualItems = 100000;
#define INITIAL_NUMBER_OF_ITEMS 100000
#endif
unsigned int i;
for (i = 0; i < 100; i++)
MyListModel::MyListModel() :
wxDataViewVirtualListModel( INITIAL_NUMBER_OF_ITEMS )
{
m_virtualItems = INITIAL_NUMBER_OF_ITEMS;
// the first 100 items are really stored in this model;
// all the others are synthetized on request
for (unsigned int i = 0; i < 100; i++)
{
wxString str;
str.Printf( wxT("row number %d"), i );
str.Printf( wxT("real row %d"), i );
m_array.Add( str );
}
m_icon = wxIcon( null_xpm );
m_icon[0] = wxIcon( null_xpm );
m_icon[1] = wxIcon( wx_small_xpm );
}
void MyListModel::Prepend( const wxString &text )
@ -294,14 +350,21 @@ void MyListModel::DeleteItem( const wxDataViewItem &item )
void MyListModel::DeleteItems( const wxDataViewItemArray &items )
{
wxArrayInt rows;
unsigned int i;
for (i = 0; i < items.GetCount(); i++)
for (unsigned int i = 0; i < items.GetCount(); i++)
{
unsigned int row = GetRow( items[i] );
if (row < m_array.GetCount())
rows.Add( row );
}
if (rows.GetCount() == 0)
{
// none of the selected items were in the range of the items
// which we store... for simplicity, don't allow removing them
wxLogError("Cannot remove rows with an index greater than %d", m_array.GetCount());
return;
}
// Sort in descending order so that the last
// row will be deleted first. Otherwise the
// remaining indeces would all be wrong.
@ -328,39 +391,35 @@ void MyListModel::GetValueByRow( wxVariant &variant,
if (col==0)
{
if (row >= m_array.GetCount())
{
wxString str;
str.Printf(wxT("row %d"), row - m_array.GetCount() );
variant = str;
}
variant = wxString::Format( wxT("virtual row %d"), row );
else
{
variant = m_array[ row ];
}
} else
if (col==1)
}
else if (col==1)
{
wxDataViewIconText data( wxT("test"), m_icon );
wxDataViewIconText data( wxT("test"), m_icon[ row%2 ] );
variant << data;
} else
if (col==2)
}
else if (col==2)
{
if (row >= m_array.GetCount())
variant = wxT("plain");
else
variant = wxT("blue");
variant = wxT("blue/green/red");
}
}
bool MyListModel::GetAttrByRow( unsigned int row, unsigned int col, wxDataViewItemAttr &attr )
bool MyListModel::GetAttrByRow( unsigned int row, unsigned int col,
wxDataViewItemAttr &attr )
{
if (col != 2)
return false;
if (row < m_array.GetCount())
{
attr.SetColour( *wxBLUE );
attr.SetItalic( true );
attr.SetColour( (row%2) == 0 ? *wxBLUE :
((row%3) == 0 ? *wxGREEN : *wxRED) );
attr.SetItalic( (row%2) == 5 );
}
return true;
@ -372,7 +431,12 @@ bool MyListModel::SetValueByRow( const wxVariant &variant,
if (col == 0)
{
if (row >= m_array.GetCount())
{
// the item is not in the range of the items
// which we store... for simplicity, don't allow editing it
wxLogError("Cannot edit rows with an index greater than %d", m_array.GetCount());
return false;
}
m_array[row] = variant.GetString();
return true;

147
samples/dataview/mymodels.h
View File

@ -10,6 +10,76 @@
/////////////////////////////////////////////////////////////////////////////
// ----------------------------------------------------------------------------
// MyMusicTreeModelNode: a node inside MyMusicTreeModel
// ----------------------------------------------------------------------------
class MyMusicTreeModelNode;
WX_DEFINE_ARRAY_PTR( MyMusicTreeModelNode*, MyMusicTreeModelNodePtrArray );
class MyMusicTreeModelNode
{
public:
MyMusicTreeModelNode( MyMusicTreeModelNode* parent,
const wxString &title, const wxString &artist,
unsigned int year )
{
m_parent = parent;
m_title = title;
m_artist = artist;
m_year = year;
m_quality = "good";
}
MyMusicTreeModelNode( MyMusicTreeModelNode* parent,
const wxString &branch )
{
m_parent = parent;
m_title = branch;
m_year = -1;
}
~MyMusicTreeModelNode()
{
// free all our children nodes
size_t count = m_children.GetCount();
for (size_t i = 0; i < count; i++)
{
MyMusicTreeModelNode *child = m_children[i];
delete child;
}
}
bool IsContainer() const
{ return m_children.GetCount()>0; }
MyMusicTreeModelNode* GetParent()
{ return m_parent; }
MyMusicTreeModelNodePtrArray& GetChildren()
{ return m_children; }
MyMusicTreeModelNode* GetNthChild( unsigned int n )
{ return m_children.Item( n ); }
void Insert( MyMusicTreeModelNode* child, unsigned int n)
{ m_children.Insert( child, n); }
void Append( MyMusicTreeModelNode* child )
{ m_children.Add( child ); }
unsigned int GetChildCount() const
{ return m_children.GetCount(); }
public: // public to avoid getters/setters
wxString m_title;
wxString m_artist;
int m_year;
wxString m_quality;
private:
MyMusicTreeModelNode *m_parent;
MyMusicTreeModelNodePtrArray m_children;
};
// ----------------------------------------------------------------------------
// MyMusicTreeModel
// ----------------------------------------------------------------------------
@ -27,64 +97,6 @@ Implement this data model
7: German Requiem Johannes Brahms 1868 good
*/
class MyMusicTreeModelNode;
WX_DEFINE_ARRAY_PTR( MyMusicTreeModelNode*, MyMusicTreeModelNodes );
class MyMusicTreeModelNode
{
public:
MyMusicTreeModelNode( MyMusicTreeModelNode* parent,
const wxString &title, const wxString &artist, int year )
{
m_parent = parent;
m_title = title;
m_artist = artist;
m_year = year;
m_quality = "good";
m_isContainer = false;
}
MyMusicTreeModelNode( MyMusicTreeModelNode* parent,
const wxString &branch )
{
m_parent = parent;
m_title = branch;
m_year = -1;
m_isContainer = true;
}
~MyMusicTreeModelNode()
{
size_t count = m_children.GetCount();
size_t i;
for (i = 0; i < count; i++)
{
MyMusicTreeModelNode *child = m_children[i];
delete child;
}
}
bool IsContainer() { return m_isContainer; }
MyMusicTreeModelNode* GetParent() { return m_parent; }
MyMusicTreeModelNodes &GetChildren() { return m_children; }
MyMusicTreeModelNode* GetNthChild( unsigned int n ) { return m_children.Item( n ); }
void Insert( MyMusicTreeModelNode* child, unsigned int n) { m_children.Insert( child, n); }
void Append( MyMusicTreeModelNode* child ) { m_children.Add( child ); }
unsigned int GetChildCount() { return m_children.GetCount(); }
public:
wxString m_title;
wxString m_artist;
int m_year;
wxString m_quality;
private:
MyMusicTreeModelNode *m_parent;
MyMusicTreeModelNodes m_children;
bool m_isContainer;
};
class MyMusicTreeModel: public wxDataViewModel
{
public:
@ -101,9 +113,15 @@ public:
// helper methods to change the model
void AddToClassical( const wxString &title, const wxString &artist, int year );
void AddToClassical( const wxString &title, const wxString &artist,
unsigned int year );
void Delete( const wxDataViewItem &item );
wxDataViewItem GetNinthItem() const
{
return wxDataViewItem( m_ninth );
}
// override sorting to always sort branches ascendingly
int Compare( const wxDataViewItem &item1, const wxDataViewItem &item2,
@ -134,16 +152,15 @@ public:
virtual unsigned int GetChildren( const wxDataViewItem &parent,
wxDataViewItemArray &array ) const;
wxDataViewItem GetNinthItem() const
{
return wxDataViewItem( m_ninth );
}
private:
MyMusicTreeModelNode* m_root;
// pointers to some "special" nodes of the tree:
MyMusicTreeModelNode* m_pop;
MyMusicTreeModelNode* m_classical;
MyMusicTreeModelNode* m_ninth;
// ??
bool m_classicalMusicIsKnownToControl;
};
@ -193,7 +210,7 @@ public:
private:
wxArrayString m_array;
wxIcon m_icon;
wxIcon m_icon[2];
int m_virtualItems;
};