Fix double deletion bug in wxGTK wxDVC dnd code.

[wxWidgets.git] / src / gtk / spinctrl.cpp

diff --git a/src/gtk/spinctrl.cpp b/src/gtk/spinctrl.cpp
index 952d00378436cc7b079f554e9b6203c1471909a9..f35eca84452dcb4b55f319d834ae7db6b883e4eb 100644 (file)
--- a/src/gtk/spinctrl.cpp
+++ b/src/gtk/spinctrl.cpp
@@ -1,5 +1,5 @@
 /////////////////////////////////////////////////////////////////////////////
-// Name:        src/gtk/spinbutt.cpp
+// Name:        src/gtk/spinctrl.cpp
 // Purpose:     wxSpinCtrl
 // Author:      Robert
 // Modified by:
@@ -37,31 +37,23 @@ extern "C" {
 static void
 gtk_value_changed(GtkSpinButton* spinbutton, wxSpinCtrlGTKBase* win)
 {
-    win->m_value = gtk_spin_button_get_value(spinbutton);
     if (!win->m_hasVMT || g_blockEventsOnDrag)
         return;
 
-    // note that we don't use wxSpinCtrl::GetValue() here because it would
-    // adjust the value to fit into the control range and this means that we
-    // would never be able to enter an "invalid" value in the control, even
-    // temporarily - and trying to enter 10 into the control which accepts the
-    // values in range 5..50 is then, ummm, quite challenging (hint: you can't
-    // enter 1!) (VZ)
-
     if (wxIsKindOf(win, wxSpinCtrl))
     {
         wxSpinEvent event(wxEVT_COMMAND_SPINCTRL_UPDATED, win->GetId());
         event.SetEventObject( win );
-        event.SetPosition((int)(win->m_value + 0.5)); // FIXME should be SetValue
-        event.SetString(GTK_ENTRY(spinbutton)->text);
+        event.SetPosition(static_cast<wxSpinCtrl*>(win)->GetValue());
+        event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
         win->HandleWindowEvent( event );
     }
     else // wxIsKindOf(win, wxSpinCtrlDouble)
     {
         wxSpinDoubleEvent event( wxEVT_COMMAND_SPINCTRLDOUBLE_UPDATED, win->GetId());
         event.SetEventObject( win );
-        event.SetValue(win->m_value);
-        event.SetString(GTK_ENTRY(spinbutton)->text);
+        event.SetValue(static_cast<wxSpinCtrlDouble*>(win)->GetValue());
+        event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
         win->HandleWindowEvent( event );
     }
 }
@@ -80,10 +72,8 @@ gtk_changed(GtkSpinButton* spinbutton, wxSpinCtrl* win)
 
     wxCommandEvent event( wxEVT_COMMAND_TEXT_UPDATED, win->GetId() );
     event.SetEventObject( win );
-    event.SetString( GTK_ENTRY(spinbutton)->text );
-
-    // see above
-    event.SetInt((int)win->m_value);
+    event.SetString(gtk_entry_get_text(GTK_ENTRY(spinbutton)));
+    event.SetInt(win->GetValue());
     win->HandleWindowEvent( event );
 }
 }
@@ -116,7 +106,16 @@ bool wxSpinCtrlGTKBase::Create(wxWindow *parent, wxWindowID id,
     g_object_ref(m_widget);
 
     gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), initial);
-    m_value = gtk_spin_button_get_value( GTK_SPIN_BUTTON(m_widget));
+
+    gfloat align;
+    if ( HasFlag(wxALIGN_RIGHT) )
+        align = 1.0;
+    else if ( HasFlag(wxALIGN_CENTRE) )
+        align = 0.5;
+    else
+        align = 0.0;
+
+    gtk_entry_set_alignment(GTK_ENTRY(m_widget), align);
 
     gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
                               (int)(m_windowStyle & wxSP_WRAP) );
@@ -140,13 +139,29 @@ double wxSpinCtrlGTKBase::DoGetValue() const
 {
     wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
 
-    GtkDisableEvents();
-    gtk_spin_button_update( GTK_SPIN_BUTTON(m_widget) );
-    wx_const_cast(wxSpinCtrlGTKBase*, this)->m_value =
-        gtk_spin_button_get_value(GTK_SPIN_BUTTON(m_widget));
-    GtkEnableEvents();
-
-    return m_value;
+    // Get value directly from current control text, just as
+    // gtk_spin_button_update() would do. Calling gtk_spin_button_update() causes
+    // a redraw, which causes an idle event, so if GetValue() is called from
+    // a UI update handler, you get a never ending sequence of idle events. It
+    // also forces the text into valid range, which wxMSW GetValue() does not do.
+    static unsigned sig_id;
+    if (sig_id == 0)
+        sig_id = g_signal_lookup("input", GTK_TYPE_SPIN_BUTTON);
+    double value;
+    int handled = 0;
+    g_signal_emit(m_widget, sig_id, 0, &value, &handled);
+    if (!handled)
+        value = g_strtod(gtk_entry_get_text(GTK_ENTRY(m_widget)), NULL);
+    GtkAdjustment* adj =
+        gtk_spin_button_get_adjustment(GTK_SPIN_BUTTON(m_widget));
+    const double lower = gtk_adjustment_get_lower(adj);
+    const double upper = gtk_adjustment_get_upper(adj);
+    if (value < lower)
+        value = lower;
+    else if (value > upper)
+        value = upper;
+
+    return value;
 }
 
 double wxSpinCtrlGTKBase::DoGetMin() const
@@ -172,13 +187,13 @@ double wxSpinCtrlGTKBase::DoGetIncrement() const
     wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
 
     double inc = 0;
-    gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), NULL, &inc);
+    gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), &inc, NULL);
     return inc;
 }
 
 bool wxSpinCtrlGTKBase::GetSnapToTicks() const
 {
-    wxCHECK_MSG( m_widget, 0, "invalid spin button" );
+    wxCHECK_MSG(m_widget, false, "invalid spin button");
 
     return gtk_spin_button_get_snap_to_ticks( GTK_SPIN_BUTTON(m_widget) );
 }
@@ -205,12 +220,8 @@ void wxSpinCtrlGTKBase::DoSetValue( double value )
 {
     wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
 
-    if (wxIsKindOf(this, wxSpinCtrl))
-        value = int(value + 0.5);
-
     GtkDisableEvents();
     gtk_spin_button_set_value( GTK_SPIN_BUTTON(m_widget), value);
-    m_value = gtk_spin_button_get_value( GTK_SPIN_BUTTON(m_widget));
     GtkEnableEvents();
 }
 
@@ -240,7 +251,6 @@ void wxSpinCtrlGTKBase::DoSetRange(double minVal, double maxVal)
 
     GtkDisableEvents();
     gtk_spin_button_set_range( GTK_SPIN_BUTTON(m_widget), minVal, maxVal);
-    m_value = gtk_spin_button_get_value(GTK_SPIN_BUTTON(m_widget));
     GtkEnableEvents();
 }
 
@@ -249,8 +259,12 @@ void wxSpinCtrlGTKBase::DoSetIncrement(double inc)
     wxCHECK_RET( m_widget, "invalid spin button" );
 
     GtkDisableEvents();
-    gtk_spin_button_set_increments( GTK_SPIN_BUTTON(m_widget), inc, 10*inc);
-    m_value = gtk_spin_button_get_value(GTK_SPIN_BUTTON(m_widget));
+
+    // Preserve the old page value when changing just the increment.
+    double page = 10*inc;
+    gtk_spin_button_get_increments( GTK_SPIN_BUTTON(m_widget), NULL, &page);
+
+    gtk_spin_button_set_increments( GTK_SPIN_BUTTON(m_widget), inc, page);
     GtkEnableEvents();
 }
 
@@ -285,7 +299,7 @@ void wxSpinCtrlGTKBase::OnChar( wxKeyEvent &event )
             GtkWindow *window = GTK_WINDOW(top_frame->m_widget);
             if ( window )
             {
-                GtkWidget *widgetDef = window->default_widget;
+                GtkWidget* widgetDef = gtk_window_get_default_widget(window);
 
                 if ( widgetDef )
                 {
@@ -340,8 +354,6 @@ wxSpinCtrlGTKBase::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
 // wxSpinCtrl
 //-----------------------------------------------------------------------------
 
-IMPLEMENT_DYNAMIC_CLASS(wxSpinCtrl, wxSpinCtrlGTKBase)
-
 //-----------------------------------------------------------------------------
 // wxSpinCtrlDouble
 //-----------------------------------------------------------------------------