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Applied #15539: wxRichTextCtrl: demonstrate adding and deleting table rows and columns in the richtext sample (dghart)

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@74869 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Julian Smart
2013-09-29 12:14:19 +00:00
parent ac448bc0a0
commit f4ac09e8e9
1 changed files with 159 additions and 1 deletions
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160
samples/richtext/richtext.cpp
View File

@@ -183,6 +183,16 @@ public:
*/
virtual bool CanInsertContent(wxRichTextParagraphLayoutBox& container, long pos) const;
/**
Finds a table, either selected or near the cursor
*/
wxRichTextTable* FindTable() const;
/**
Helper for FindTable()
*/
wxRichTextObject* FindCurrentPosition() const;
long m_lockId;
bool m_locked;
};
@@ -275,6 +285,13 @@ public:
void OnDemoteList(wxCommandEvent& event);
void OnClearList(wxCommandEvent& event);
void OnTableAddColumn(wxCommandEvent& event);
void OnTableAddRow(wxCommandEvent& event);
void OnTableDeleteColumn(wxCommandEvent& event);
void OnTableDeleteRow(wxCommandEvent& event);
void OnTableFocusedUpdateUI(wxUpdateUIEvent& event);
void OnTableHasCellsUpdateUI(wxUpdateUIEvent& event);
void OnReload(wxCommandEvent& event);
void OnViewHTML(wxCommandEvent& event);
@@ -359,6 +376,11 @@ enum
ID_FORMAT_DEMOTE_LIST,
ID_FORMAT_CLEAR_LIST,
ID_TABLE_ADD_COLUMN,
ID_TABLE_ADD_ROW,
ID_TABLE_DELETE_COLUMN,
ID_TABLE_DELETE_ROW,
ID_SET_FONT_SCALE,
ID_SET_DIMENSION_SCALE,
@@ -446,6 +468,13 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(ID_FORMAT_DEMOTE_LIST, MyFrame::OnDemoteList)
EVT_MENU(ID_FORMAT_CLEAR_LIST, MyFrame::OnClearList)
EVT_MENU(ID_TABLE_ADD_COLUMN, MyFrame::OnTableAddColumn)
EVT_MENU(ID_TABLE_ADD_ROW, MyFrame::OnTableAddRow)
EVT_MENU(ID_TABLE_DELETE_COLUMN, MyFrame::OnTableDeleteColumn)
EVT_MENU(ID_TABLE_DELETE_ROW, MyFrame::OnTableDeleteRow)
EVT_UPDATE_UI_RANGE(ID_TABLE_ADD_COLUMN, ID_TABLE_ADD_ROW, MyFrame::OnTableFocusedUpdateUI)
EVT_UPDATE_UI_RANGE(ID_TABLE_DELETE_COLUMN, ID_TABLE_DELETE_ROW, MyFrame::OnTableHasCellsUpdateUI)
EVT_MENU(ID_VIEW_HTML, MyFrame::OnViewHTML)
EVT_MENU(ID_SWITCH_STYLE_SHEETS, MyFrame::OnSwitchStyleSheets)
EVT_MENU(ID_MANAGE_STYLES, MyFrame::OnManageStyles)
@@ -802,6 +831,12 @@ MyFrame::MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos,
listsMenu->Append(ID_FORMAT_DEMOTE_LIST, _("Demote List Items"));
listsMenu->Append(ID_FORMAT_CLEAR_LIST, _("Clear List Formatting"));
wxMenu* tableMenu = new wxMenu;
tableMenu->Append(ID_TABLE_ADD_COLUMN, _("&Add Column"));
tableMenu->Append(ID_TABLE_ADD_ROW, _("Add &Row"));
tableMenu->Append(ID_TABLE_DELETE_COLUMN, _("Delete &Column"));
tableMenu->Append(ID_TABLE_DELETE_ROW, _("&Delete Row"));
wxMenu* insertMenu = new wxMenu;
insertMenu->Append(ID_INSERT_SYMBOL, _("&Symbol...\tCtrl+I"));
insertMenu->Append(ID_INSERT_URL, _("&URL..."));
@@ -813,6 +848,7 @@ MyFrame::MyFrame(const wxString& title, wxWindowID id, const wxPoint& pos,
menuBar->Append(editMenu, wxT("&Edit"));
menuBar->Append(formatMenu, wxT("F&ormat"));
menuBar->Append(listsMenu, wxT("&Lists"));
menuBar->Append(tableMenu, wxT("&Tables"));
menuBar->Append(insertMenu, wxT("&Insert"));
menuBar->Append(helpMenu, wxT("&Help"));
@@ -1163,6 +1199,7 @@ void MyFrame::WriteInitialText()
r.SetInsertionPointEnd();
}
#endif
#if 1
{
// Add a table
@@ -1216,7 +1253,7 @@ void MyFrame::WriteInitialText()
r.SetFocusObject(cell);
cell->Clear();
r.WriteText("This cell spans 2 columns and 3 rows");
r.SetFocusObject(NULL); // Set the focus back to the main buffer
r.SetInsertionPointEnd();
}
@@ -1929,6 +1966,80 @@ void MyFrame::OnClearList(wxCommandEvent& WXUNUSED(event))
}
}
void MyFrame::OnTableAddColumn(wxCommandEvent& WXUNUSED(event))
{
wxRichTextTable* table = wxDynamicCast(m_richTextCtrl->FindTable(), wxRichTextTable);
if (table)
{
wxRichTextAttr cellAttr = table->GetCell(0, 0)->GetAttributes();
table->AddColumns(table->GetColumnCount(), 1, cellAttr);
}
}
void MyFrame::OnTableAddRow(wxCommandEvent& WXUNUSED(event))
{
wxRichTextTable* table = wxDynamicCast(m_richTextCtrl->FindTable(), wxRichTextTable);
if (table)
{
wxRichTextAttr cellAttr = table->GetCell(0, 0)->GetAttributes();
table->AddRows(table->GetRowCount(), 1, cellAttr);
}
}
void MyFrame::OnTableDeleteColumn(wxCommandEvent& WXUNUSED(event))
{
wxRichTextTable* table = wxDynamicCast(m_richTextCtrl->FindTable(), wxRichTextTable);
if (table)
{
int col = table->GetFocusedCell().GetCol();
if (col == -1)
{
col = table->GetColumnCount() - 1;
}
table->DeleteColumns(col, 1);
}
}
void MyFrame::OnTableDeleteRow(wxCommandEvent& WXUNUSED(event))
{
wxRichTextTable* table = wxDynamicCast(m_richTextCtrl->FindTable(), wxRichTextTable);
if (table)
{
int row = table->GetFocusedCell().GetRow();
if (row == -1)
{
row = table->GetRowCount() - 1;
}
table->DeleteRows(row, 1);
}
}
void MyFrame::OnTableFocusedUpdateUI(wxUpdateUIEvent& event)
{
event.Enable(m_richTextCtrl->FindTable() != NULL);
}
void MyFrame::OnTableHasCellsUpdateUI(wxUpdateUIEvent& event)
{
bool enable(false);
wxRichTextTable* table = wxDynamicCast(m_richTextCtrl->FindTable(), wxRichTextTable);
if (table)
{
if (event.GetId() == ID_TABLE_DELETE_COLUMN)
{
enable = table->GetColumnCount() > 1;
}
else
{
enable = table->GetRowCount() > 1;
}
}
event.Enable(enable);
}
void MyFrame::OnInsertURL(wxCommandEvent& WXUNUSED(event))
{
wxString url = wxGetTextFromUser(_("URL:"), _("Insert URL"));
@@ -2152,3 +2263,50 @@ void MyRichTextCtrl::SetEnhancedDrawingHandler()
{
wxRichTextBuffer::AddDrawingHandler(new wxRichTextEnhancedDrawingHandler);
}
wxRichTextObject* MyRichTextCtrl::FindCurrentPosition() const
{
long position = -1;
if (HasSelection()) // First see if there's a selection
{
wxRichTextRange range = GetSelectionRange();
if (range.ToInternal().GetLength() == 1)
{
position = range.GetStart();
}
}
if (position == -1) // Failing that, near cursor
{
position = GetAdjustedCaretPosition(GetCaretPosition());
}
wxRichTextObject* obj = GetFocusObject()->GetLeafObjectAtPosition(position);
return obj;
}
wxRichTextTable* MyRichTextCtrl::FindTable() const
{
wxRichTextObject* obj = FindCurrentPosition();
// It could be a table or a cell (or neither)
wxRichTextTable* table = wxDynamicCast(obj, wxRichTextTable);
if (table)
{
return table;
}
while (obj)
{
obj = obj->GetParent();
wxRichTextTable* table = wxDynamicCast(obj, wxRichTextTable);
if (table)
{
return table;
}
}
return NULL;
}