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implemented 3state checkboxes in wxGTK with GTK2

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@28035 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Václav Slavík
2004-06-26 15:53:22 +00:00
parent 1ef49ab576
commit 4dcccda66b
6 changed files with 186 additions and 10 deletions
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90
src/gtk1/checkbox.cpp
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@@ -42,7 +42,7 @@ extern wxWindowGTK *g_delayedFocus;
// "clicked"
//-----------------------------------------------------------------------------
static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckBox *cb )
static void gtk_checkbox_toggled_callback(GtkWidget *widget, wxCheckBox *cb)
{
if (g_isIdle) wxapp_install_idle_handler();
@@ -52,8 +52,60 @@ static void gtk_checkbox_clicked_callback( GtkWidget *WXUNUSED(widget), wxCheckB
if (cb->m_blockEvent) return;
#ifdef __WXGTK20__
// Transitions for 3state checkbox must be done manually, GTK's checkbox
// is 2state with additional "undetermined state" flag which isn't
// changed automatically:
if (cb->Is3State())
{
GtkToggleButton *toggle = GTK_TOGGLE_BUTTON(widget);
if (cb->Is3rdStateAllowedForUser())
{
// The 3 states cycle like this when clicked:
// checked -> undetermined -> unchecked -> checked -> ...
bool active = gtk_toggle_button_get_active(toggle);
bool inconsistent = gtk_toggle_button_get_inconsistent(toggle);
cb->m_blockEvent = true;
if (!active && !inconsistent)
{
// checked -> undetermined
gtk_toggle_button_set_active(toggle, true);
gtk_toggle_button_set_inconsistent(toggle, true);
}
else if (!active && inconsistent)
{
// undetermined -> unchecked
gtk_toggle_button_set_inconsistent(toggle, false);
}
else if (active && !inconsistent)
{
// unchecked -> checked
// nothing to do
}
else
{
wxFAIL_MSG(_T("3state wxCheckBox in unexpected state!"));
}
cb->m_blockEvent = false;
}
else
{
// user's action unsets undetermined state:
gtk_toggle_button_set_inconsistent(toggle, false);
}
}
#endif
wxCommandEvent event(wxEVT_COMMAND_CHECKBOX_CLICKED, cb->GetId());
event.SetInt( cb->GetValue() );
#ifdef __WXGTK20__
event.SetInt(cb->Get3StateValue());
#else
event.SetInt(cb->GetValue());
#endif
event.SetEventObject(cb);
cb->GetEventHandler()->ProcessEvent(event);
}
@@ -88,6 +140,11 @@ bool wxCheckBox::Create(wxWindow *parent,
return FALSE;
}
wxASSERT_MSG( (style & wxCHK_ALLOW_3RD_STATE_FOR_USER) == 0 ||
(style & wxCHK_3STATE) != 0,
wxT("Using wxCHK_ALLOW_3RD_STATE_FOR_USER")
wxT(" style flag for a 2-state checkbox is useless") );
if ( style & wxALIGN_RIGHT )
{
// VZ: as I don't know a way to create a right aligned checkbox with
@@ -114,8 +171,8 @@ bool wxCheckBox::Create(wxWindow *parent,
SetLabel( label );
gtk_signal_connect( GTK_OBJECT(m_widgetCheckbox),
"clicked",
GTK_SIGNAL_FUNC(gtk_checkbox_clicked_callback),
"toggled",
GTK_SIGNAL_FUNC(gtk_checkbox_toggled_callback),
(gpointer *)this );
m_parent->DoAddChild( this );
@@ -143,9 +200,34 @@ bool wxCheckBox::GetValue() const
{
wxCHECK_MSG( m_widgetCheckbox != NULL, FALSE, wxT("invalid checkbox") );
#ifdef __WXGTK20__
return gtk_toggle_button_get_active(GTK_TOGGLE_BUTTON(m_widgetCheckbox));
#else
return GTK_TOGGLE_BUTTON(m_widgetCheckbox)->active;
#endif
}
#ifdef __WXGTK20__
void wxCheckBox::DoSet3StateValue(wxCheckBoxState state)
{
SetValue(state != wxCHK_UNCHECKED);
gtk_toggle_button_set_inconsistent(GTK_TOGGLE_BUTTON(m_widgetCheckbox),
state == wxCHK_UNDETERMINED);
}
wxCheckBoxState wxCheckBox::DoGet3StateValue() const
{
if (gtk_toggle_button_get_inconsistent(GTK_TOGGLE_BUTTON(m_widgetCheckbox)))
{
return wxCHK_UNDETERMINED;
}
else
{
return GetValue() ? wxCHK_CHECKED : wxCHK_UNCHECKED;
}
}
#endif
void wxCheckBox::SetLabel( const wxString& label )
{
wxCHECK_RET( m_widgetLabel != NULL, wxT("invalid checkbox") );