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added test for items updating and some comments

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@31702 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin 2005-02-02 00:11:52 +00:00
parent aead8a4eab
commit 1d41ed0a1c
1 changed files with 38 additions and 4 deletions
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42
samples/htlbox/htlbox.cpp
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@ -72,16 +72,27 @@ public:
MyHtmlListBox(wxWindow *parent, bool multi = false);
void SetChangeSelFg(bool change) { m_change = change; }
void UpdateFirstItem();
protected:
// override this method to return data to be shown in the listbox (this is
// mandatory)
virtual wxString OnGetItem(size_t n) const;
// change the appearance by overriding these functions
// change the appearance by overriding these functions (this is optional)
virtual void OnDrawSeparator(wxDC& dc, wxRect& rect, size_t n) const;
virtual wxColour GetSelectedTextColour(const wxColour& colFg) const;
// flag telling us whether we should use fg colour even for the selected
// item
bool m_change;
// flag which we toggle to update the first items text in OnGetItem()
bool m_firstItemUpdated;
#ifdef USE_HTML_FILE
wxTextFile m_file;
#endif
@ -103,6 +114,7 @@ public:
void OnDrawSeparator(wxCommandEvent&) { m_hlbox->RefreshAll(); }
void OnToggleMulti(wxCommandEvent& event);
void OnSelectAll(wxCommandEvent& event);
void OnUpdateItem(wxCommandEvent& event);
void OnSetBgCol(wxCommandEvent& event);
void OnSetSelBgCol(wxCommandEvent& event);
@ -144,6 +156,7 @@ enum
HtmlLbox_DrawSeparator,
HtmlLbox_ToggleMulti,
HtmlLbox_SelectAll,
HtmlLbox_UpdateItem,
HtmlLbox_SetBgCol,
HtmlLbox_SetSelBgCol,
@ -166,6 +179,7 @@ BEGIN_EVENT_TABLE(MyFrame, wxFrame)
EVT_MENU(HtmlLbox_DrawSeparator, MyFrame::OnDrawSeparator)
EVT_MENU(HtmlLbox_ToggleMulti, MyFrame::OnToggleMulti)
EVT_MENU(HtmlLbox_SelectAll, MyFrame::OnSelectAll)
EVT_MENU(HtmlLbox_UpdateItem, MyFrame::OnUpdateItem)
EVT_MENU(HtmlLbox_About, MyFrame::OnAbout)
@ -217,6 +231,7 @@ MyFrame::MyFrame()
_T("Toggle multiple selection on/off"));
menuHLbox->AppendSeparator();
menuHLbox->Append(HtmlLbox_SelectAll, _T("Select &all items\tCtrl-A"));
menuHLbox->Append(HtmlLbox_UpdateItem, _T("Update &first item\tCtrl-U"));
menuHLbox->AppendSeparator();
menuHLbox->Append(HtmlLbox_SetBgCol, _T("Set &background...\tCtrl-B"));
menuHLbox->Append(HtmlLbox_SetSelBgCol,
@ -327,6 +342,11 @@ void MyFrame::OnUpdateUISelectAll(wxUpdateUIEvent& event)
event.Enable( m_hlbox && m_hlbox->HasMultipleSelection() );
}
void MyFrame::OnUpdateItem(wxCommandEvent& WXUNUSED(event))
{
m_hlbox->UpdateFirstItem();
}
void MyFrame::OnSetBgCol(wxCommandEvent& WXUNUSED(event))
{
wxColour col = wxGetColourFromUser(this, m_hlbox->GetBackgroundColour());
@ -408,6 +428,8 @@ MyHtmlListBox::MyHtmlListBox(wxWindow *parent, bool multi)
multi ? wxLB_MULTIPLE : 0)
{
m_change = true;
m_firstItemUpdated = false;
SetMargins(5, 5);
@ -440,6 +462,11 @@ void MyHtmlListBox::OnDrawSeparator(wxDC& dc, wxRect& rect, size_t) const
wxString MyHtmlListBox::OnGetItem(size_t n) const
{
if ( !n && m_firstItemUpdated )
{
return wxString::Format(_T("<h1><b>Just updated</b></h1>"));
}
#ifdef USE_HTML_FILE
wxString s;
if ( m_file.IsOpened() )
@ -452,9 +479,9 @@ wxString MyHtmlListBox::OnGetItem(size_t n) const
_T("Item</font> <b>%lu</b>")
_T("</h%d>"),
level,
abs(n - 192) % 256,
abs(n - 256) % 256,
abs(n - 128) % 256,
abs((int)n - 192) % 256,
abs((int)n - 256) % 256,
abs((int)n - 128) % 256,
(unsigned long)n, level);
#endif
}
@ -464,3 +491,10 @@ wxColour MyHtmlListBox::GetSelectedTextColour(const wxColour& colFg) const
return m_change ? wxHtmlListBox::GetSelectedTextColour(colFg) : colFg;
}
void MyHtmlListBox::UpdateFirstItem()
{
m_firstItemUpdated = !m_firstItemUpdated;
RefreshLine(0);
}