/////////////////////////////////////////////////////////////////////////////
// Name: htmllbox.cpp
-// Purpose: HtmlLbox wxWindows sample
+// Purpose: HtmlLbox wxWidgets sample
// Author: Vadim Zeitlin
// Modified by:
// Created: 31.05.03
// RCS-ID: $Id$
-// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwindows.org>
+// Copyright: (c) 2003 Vadim Zeitlin <vadim@wxwidgets.org>
// Licence: wxWindows licence
/////////////////////////////////////////////////////////////////////////////
#include "wx/textctrl.h"
#include "wx/dc.h"
+ #include "wx/icon.h"
#endif
+#include "wx/colordlg.h"
+#include "wx/numdlg.h"
+
#include "wx/htmllbox.h"
// you can also have a file containing HTML strings for testing, enable this if
#include "wx/textfile.h"
#endif
-// ----------------------------------------------------------------------------
-// resources
-// ----------------------------------------------------------------------------
-
-// the application icon (under Windows and OS/2 it is in resources)
-#if defined(__WXGTK__) || defined(__WXMOTIF__) || defined(__WXMAC__) || defined(__WXMGL__) || defined(__WXX11__)
- #include "mondrian.xpm"
-#endif
+#include "../sample.xpm"
// ----------------------------------------------------------------------------
// private classes
class MyHtmlListBox : public wxHtmlListBox
{
public:
- MyHtmlListBox(wxWindow *parent, bool multi = false)
- : wxHtmlListBox(parent, -1, wxDefaultPosition, wxDefaultSize,
- multi ? wxLB_MULTIPLE : 0)
- {
- SetMargins(5, 5);
+ MyHtmlListBox(wxWindow *parent, bool multi = false);
-#ifdef USE_HTML_FILE
- if ( !m_file.Open("results") )
- {
- wxLogError("Failed to open results file");
- }
- else
- {
- SetItemCount(m_file.GetLineCount());
- }
-#else
- SetItemCount(10);
-#endif
-
- if ( HasMultipleSelection() )
- Select(3);
- else
- SetSelection(3);
- }
+ void SetChangeSelFg(bool change) { m_change = change; }
+ void UpdateFirstItem();
protected:
- virtual wxString OnGetItem(size_t n) const
- {
-#ifdef USE_HTML_FILE
- wxString s;
- if ( m_file.IsOpened() )
- s = m_file[n];
-
- return s;
-#else
- int level = n % 6 + 1;
- return wxString::Format(_T("<h%d><font color=#%2x%2x%2x>")
- _T("Item</font> <b>%lu</b>")
- _T("</h%d>"),
- level,
- abs(n - 192) % 256,
- abs(n - 256) % 256,
- abs(n - 128) % 256,
- (unsigned long)n, level);
-#endif
- }
+ // 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 (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
+
+ DECLARE_NO_COPY_CLASS(MyHtmlListBox)
};
class MyFrame : public wxFrame
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);
+ void OnSetSelFgCol(wxCommandEvent& event);
+
void OnUpdateUISelectAll(wxUpdateUIEvent& event);
private:
MyHtmlListBox *m_hlbox;
- // any class wishing to process wxWindows events must use this macro
+ // any class wishing to process wxWidgets events must use this macro
DECLARE_EVENT_TABLE()
};
class MyApp : public wxApp
{
public:
- virtual bool OnInit() { (new MyFrame())->Show(); return TRUE; }
+ virtual bool OnInit() { (new MyFrame())->Show(); return true; }
};
// ----------------------------------------------------------------------------
HtmlLbox_DrawSeparator,
HtmlLbox_ToggleMulti,
HtmlLbox_SelectAll,
+ HtmlLbox_UpdateItem,
+
+ HtmlLbox_SetBgCol,
+ HtmlLbox_SetSelBgCol,
+ HtmlLbox_SetSelFgCol,
// it is important for the id corresponding to the "About" command to have
// this standard value as otherwise it won't be handled properly under Mac
};
// ----------------------------------------------------------------------------
-// event tables and other macros for wxWindows
+// event tables and other macros for wxWidgets
// ----------------------------------------------------------------------------
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)
+ EVT_MENU(HtmlLbox_SetBgCol, MyFrame::OnSetBgCol)
+ EVT_MENU(HtmlLbox_SetSelBgCol, MyFrame::OnSetSelBgCol)
+ EVT_MENU(HtmlLbox_SetSelFgCol, MyFrame::OnSetSelFgCol)
EVT_UPDATE_UI(HtmlLbox_SelectAll, MyFrame::OnUpdateUISelectAll)
// frame constructor
MyFrame::MyFrame()
- : wxFrame(NULL, -1, _T("HtmlLbox wxWindows Sample"),
+ : wxFrame(NULL, wxID_ANY, _T("HtmlLbox wxWidgets Sample"),
wxDefaultPosition, wxSize(400, 500))
{
// set the frame icon
- SetIcon(wxICON(mondrian));
+ SetIcon(wxIcon(sample_xpm));
#if wxUSE_MENUS
// create a menu bar
_T("Set &margins...\tCtrl-G"),
_T("Change the margins around the items"));
menuHLbox->AppendCheckItem(HtmlLbox_DrawSeparator,
- _T("Draw &separators\tCtrl-S"),
+ _T("&Draw separators\tCtrl-D"),
_T("Toggle drawing separators between cells"));
menuHLbox->AppendSeparator();
menuHLbox->AppendCheckItem(HtmlLbox_ToggleMulti,
_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,
+ _T("Set &selection background...\tCtrl-S"));
+ menuHLbox->AppendCheckItem(HtmlLbox_SetSelFgCol,
+ _T("Keep &foreground in selection\tCtrl-F"));
// the "About" item should be in the help menu
wxMenu *helpMenu = new wxMenu;
#if wxUSE_STATUSBAR
// create a status bar just for fun (by default with 1 pane only)
CreateStatusBar(2);
- SetStatusText(_T("Welcome to wxWindows!"));
+ SetStatusText(_T("Welcome to wxWidgets!"));
#endif // wxUSE_STATUSBAR
// create the child controls
m_hlbox = new MyHtmlListBox(this);
- wxTextCtrl *text = new wxTextCtrl(this, -1, _T(""),
+ wxTextCtrl *text = new wxTextCtrl(this, wxID_ANY, _T(""),
wxDefaultPosition, wxDefaultSize,
wxTE_MULTILINE);
delete wxLog::SetActiveTarget(new wxLogTextCtrl(text));
void MyFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
{
- // TRUE is to force the frame to close
- Close(TRUE);
+ // true is to force the frame to close
+ Close(true);
}
void MyFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox(_T("This sample shows wxHtmlListBox class.\n")
_T("\n")
- _T("© 2003 Vadim Zeitlin"),
+ _T("(c) 2003 Vadim Zeitlin"),
_T("About HtmlLbox"),
wxOK | wxICON_INFORMATION,
this);
}
-void MyFrame::OnSetMargins(wxCommandEvent&)
+void MyFrame::OnSetMargins(wxCommandEvent& WXUNUSED(event))
{
long margin = wxGetNumberFromUser
(
sizer->Layout();
}
-void MyFrame::OnSelectAll(wxCommandEvent& event)
+void MyFrame::OnSelectAll(wxCommandEvent& WXUNUSED(event))
{
- m_hlbox->SelectRange(0, m_hlbox->GetItemCount() - 1);
+ m_hlbox->SelectAll();
}
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());
+ if ( col.Ok() )
+ {
+ m_hlbox->SetBackgroundColour(col);
+ m_hlbox->Refresh();
+
+#if wxUSE_STATUSBAR
+ SetStatusText(_T("Background colour changed."));
+#endif // wxUSE_STATUSBAR
+ }
+}
+
+void MyFrame::OnSetSelBgCol(wxCommandEvent& WXUNUSED(event))
+{
+ wxColour col = wxGetColourFromUser(this, m_hlbox->GetSelectionBackground());
+ if ( col.Ok() )
+ {
+ m_hlbox->SetSelectionBackground(col);
+ m_hlbox->Refresh();
+
+#if wxUSE_STATUSBAR
+ SetStatusText(_T("Selection background colour changed."));
+#endif // wxUSE_STATUSBAR
+ }
+}
+
+void MyFrame::OnSetSelFgCol(wxCommandEvent& event)
+{
+ m_hlbox->SetChangeSelFg(!event.IsChecked());
+ m_hlbox->Refresh();
+}
+
// ----------------------------------------------------------------------------
// listbox event handlers
// ----------------------------------------------------------------------------
wxLogMessage(_T("Selected items: %s"), s.c_str());
}
+#if wxUSE_STATUSBAR
SetStatusText(wxString::Format(
_T("# items selected = %lu"),
(unsigned long)m_hlbox->GetSelectedCount()
));
+#endif // wxUSE_STATUSBAR
}
// ============================================================================
// MyHtmlListBox
// ============================================================================
+MyHtmlListBox::MyHtmlListBox(wxWindow *parent, bool multi)
+ : wxHtmlListBox(parent, wxID_ANY, wxDefaultPosition, wxDefaultSize,
+ multi ? wxLB_MULTIPLE : 0)
+{
+ m_change = true;
+ m_firstItemUpdated = false;
+
+
+ SetMargins(5, 5);
+
+#ifdef USE_HTML_FILE
+ if ( !m_file.Open(_T("results")) )
+ {
+ wxLogError(_T("Failed to open results file"));
+ }
+ else
+ {
+ SetItemCount(m_file.GetLineCount());
+ }
+#else
+ SetItemCount(1000);
+#endif
+
+ SetSelection(3);
+}
+
void MyHtmlListBox::OnDrawSeparator(wxDC& dc, wxRect& rect, size_t) const
{
if ( ((MyFrame *)GetParent())->
}
}
+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() )
+ s = m_file[n];
+
+ return s;
+#else
+ int level = n % 6 + 1;
+ return wxString::Format(_T("<h%d><font color=#%2x%2x%2x>")
+ _T("Item</font> <b>%lu</b>")
+ _T("</h%d>"),
+ level,
+ abs((int)n - 192) % 256,
+ abs((int)n - 256) % 256,
+ abs((int)n - 128) % 256,
+ (unsigned long)n, level);
+#endif
+}
+
+wxColour MyHtmlListBox::GetSelectedTextColour(const wxColour& colFg) const
+{
+ return m_change ? wxHtmlListBox::GetSelectedTextColour(colFg) : colFg;
+}
+
+void MyHtmlListBox::UpdateFirstItem()
+{
+ m_firstItemUpdated = !m_firstItemUpdated;
+
+ RefreshLine(0);
+}
+
projects / wxWidgets.git / blobdiff